Cosmetic bottle cap defect automatic sorting device

Abstract

The utility model relates to an automatic cosmetic bottle cap defect sorting device which comprises a conveying belt and a cuboid shade (divided into a conveying area, a detection area and a sorting area) wrapping the conveying belt, an atomizing nozzle is arranged in the conveying area, a light-variable illuminating lamp is arranged in the middle of each inner wall of the sorting area, reflectors which are specifically distributed are arranged outside the sorting area, and a plurality of cameras which are distributed in a square shape are arranged on the periphery of the sorting area. Spotlights and optical glass substrates are fixed to the four corners of the top end of the sorting area respectively, a plurality of refraction lenses are evenly distributed on the optical glass substrates, a plurality of pneumatic push rods and sorting grooves are evenly arranged on the two sides of the sorting area in the conveying direction respectively, and the pneumatic push rods correspond to the sorting grooves in a one-to-one mode. Meanwhile, the spot lamp and the refraction lens provide additional illumination from the oblique angle, the image problem caused by light change and a high-reflection surface is solved, meanwhile, bottle cap images are obtained from multiple visual angles, bottle cap surface information is captured more comprehensively, and the recognition accuracy of tiny flaws is improved.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic defect sorting technology, and in particular to an automatic sorting device for cosmetic bottle cap defects. Background Technology

[0002] In the production of cosmetic bottle caps, quality control is crucial, and defect sorting is a key step. Traditional sorting methods rely mainly on manual labor, which is inefficient and prone to errors. With the development of automation technology, some automatic sorting machines have emerged. These machines are equipped with high-precision sensors and advanced image recognition technology, enabling them to detect various defects on the bottle cap surface and process large quantities of caps in a short time. However, existing automatic sorting machines face many challenges in practical applications. For example, patent CN218079108U discloses a vision-based automatic sorting machine that relies solely on a first and second vision recognition module. When the ambient light changes (such as strong direct sunlight or dim lighting), cosmetic bottle caps, being highly reflective surfaces, are prone to reflections and shadows, potentially leading to image information loss or misjudgment. This can severely affect image acquisition quality and reduce recognition accuracy. Furthermore, minor defects may not be significantly different from normal surfaces under simple visual scanning and are easily missed, potentially leading to the misidentification of normal patterns as defects or vice versa. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the limitations of existing automatic sorting machines, the purpose of this utility model is to provide an automatic sorting device for cosmetic bottle cap defects. By combining variable light illumination with reflectors, the device adjusts the lighting parameters of the working environment, changing the angle and intensity distribution of light from multiple directions. This reduces reflections and shadows on highly reflective bottle cap surfaces caused by a single light source or changes in ambient light (such as direct strong light or dim lighting), optimizing the lighting effect and improving image acquisition quality. Simultaneously, spotlights and refractive lenses provide additional illumination to the bottle caps from an oblique angle, further reducing shadows and reflections, enriching the lighting angles, and overcoming image problems caused by changes in light and highly reflective surfaces. Furthermore, the multi-angle lighting system composed of variable light illumination, reflectors, and refractive lenses, combined with four different cameras arranged in a square on both sides and top of the detection area, can acquire bottle cap images from multiple perspectives. This allows for a more comprehensive capture of bottle cap surface information, helping to highlight the differences between minor defects and normal surfaces, reducing misjudgments caused by single-angle observation, and improving the accuracy of identifying minor defects.

[0005] (2) Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic sorting device for cosmetic bottle cap defects, comprising a conveyor belt and a cuboid cover covering the conveyor belt. The cuboid cover is divided into a conveying area, a detection area, and a sorting area along the conveying direction of the conveyor belt. In the sorting area, several pneumatic push rods are fixedly connected to one side of the conveying direction, and several sorting slots are fixedly connected to the other side. The positions of the sorting slots correspond one-to-one with the pneumatic push rods. The detection area is characterized in that variable light lamps are fixedly installed in the middle of the inner walls of the four sides, and several reflectors are fixedly connected around the outer ring of the variable light lamps. Spotlights are fixedly connected to the four corners of the top of the detection area. An optical glass substrate is fixedly connected to the bottom of each spotlight. The other end of each optical glass substrate is obliquely downward. Several refractive lenses are vertically fixed on the optical glass substrate. Several camera devices are fixedly installed on the inner walls of both sides of the conveying direction of the detection area. A placement slot is fixedly connected to the end of the conveyor belt in the conveying direction. The positions are determined according to the conveyor belt's direction of transport. That is, from the initial end to the final end of the conveyor belt's direction, the areas are sequentially divided into a transport zone, an inspection zone, and a sorting zone. Each area performs different functions. Specifically, the transport zone transports bottle caps, the inspection zone checks for defects, and the sorting zone categorizes and stores the bottle caps according to requirements. It's important to note that the conveyor belt is continuously moving; it carries bottle caps sequentially through the transport, inspection, and sorting zones. Essentially, a bottle cap is placed at the initial end of the conveyor belt, which then carries it downwards. Once a bottle cap enters the transport zone, a second bottle cap is placed at the initial end, ensuring sufficient space between bottle caps for inspection and sorting. The two sides of the conveyor belt's top surface are the two sides along the transport direction.

[0007] The cuboid mask here can be understood as a hollow cuboid that encloses the conveyor belt. For ease of understanding, the starting end of the conveyor belt's transmission direction is defined as the left side and the ending end as the right side. In other words, the cuboid mask has openings on the left and right sides, which, from left to right, distinguish the transmission area, the detection area, and the sorting area.

[0008] Preferably, several atomizing nozzles are installed at the top of the conveyor belt, each connected to a water supply device via a pipe. The atomizing nozzles are evenly distributed at the top of the conveyor belt, and when bottle caps enter the conveyor belt, the atomizing nozzles draw water from the water supply device through the pipes and spray it downwards, evenly covering the bottle cap surface to wet and remove dust. The main extraction method is through a water pump, which draws water from the water supply device, transmits it through pipes to the atomizing nozzles, and then sprays it evenly. After passing through the conveyor belt, the bottle caps enter the inspection area, where they continue to receive spray from the atomizing nozzles throughout the process.

[0009] Preferably, the reflectors on both sides of the conveying direction of the detection area are arranged in an isosceles triangle, while the reflectors at the bottom and top of the detection area are arranged in a square. A variable light lamp is fixed in the middle of the detection area on the inner walls of the front and rear sides of the cuboid shield along the conveying direction. The reflectors are fixed outside the variable light lamp and arranged in an isosceles triangle, meaning that three or more reflectors form an isosceles triangle enclosing the variable light lamp, thus reflecting light onto the bottle cap from different angles.

[0010] Similarly, the reflectors on the inner walls of the bottom and top of the detection area, which are the top and bottom of the conveyor belt, i.e. the top and bottom of the cuboid shield, are arranged in a square to enclose the variable light lamp for light reflection.

[0011] Preferably, there are four cameras arranged in a square, and each camera is different. The cameras are also fixed on the upper, lower, front, and rear inner walls of the rectangular shield detection area. The four cameras form a square, which is larger than the square formed by the reflector. That is, the cameras are located on the periphery of the reflector, and the four cameras have different functions, such as a high-resolution color camera, a macro camera, and a depth camera. The illumination direction of each camera is the direction of the conveyor belt.

[0012] Preferably, each reflector and optical glass substrate is rotatably connected to a rotating shaft on its back. The other end of the rotating shaft is connected to a micro motor via a gear, and the micro motor is fixed inside a cuboid shield. The optical glass substrate is designed to face downwards, with a spotlight fixed above it. This is to ensure that the refracting lens is in the light path of the spotlight and the bottle cap, allowing the light to refract in more directions. Each reflector and optical glass substrate is equipped with a micro motor, which allows the micro motor to adjust the angle of the reflector and optical glass substrate, thereby better reflecting and refracting light. This enables the camera to obtain a more comprehensive and complete image for accurate and effective defect analysis. The specific connection method and working principle adopt existing technology and therefore will not be described in detail.

[0013] More specifically, when the ambient light changes, such as in the presence of direct sunlight or dim lighting, the propagation path of the light can be altered by rotating the reflector and optical glass substrate. This effectively compensates for insufficient ambient light or avoids interference from it. In the presence of direct sunlight, the angle of the reflector can be adjusted to reduce the possibility of direct reflection of strong light onto the camera equipment. In dim lighting, the light can be more concentratedly reflected or refracted onto the bottle cap, enhancing its illumination effect and ensuring clear and accurate images under various lighting conditions, thus improving the device's adaptability to changes in ambient light.

[0014] Preferably, the pushing direction of each pneumatic pusher is perpendicular to the conveyor belt's conveying direction. The bottom end of the pneumatic pusher is in contact with the top of the conveyor belt, and the head of the pneumatic pusher is arc-shaped, with a rubber pad fixedly connected inside the arc. The pneumatic pusher's contact with the conveyor belt ensures that it can accurately push bottle caps into the sorting slot. Each pneumatic pusher corresponds to a sorting slot. When a bottle cap enters the sorting area, the control system determines the type of defect based on the acquired image information of the bottle cap and identifies which sorting slot it should be placed in. It then controls the corresponding pneumatic pusher to push the bottle cap into the appropriate sorting slot. Each pneumatic pusher has a unique design and corresponding control logic within the control system, ensuring precise control. Furthermore, each pneumatic pusher is equipped with a solenoid valve, which controls the speed of the pneumatic pusher.

[0015] Preferably, a mounting bracket is fixedly installed at the top of each sorting trough near the conveyor belt, and guide wheels are rotatably connected to both ends of the mounting bracket. The sorting trough is angled downwards on the side near the conveyor belt. When the pneumatic pusher pushes the bottle cap into the corresponding sorting trough, it first contacts the guide wheels on both sides at the trough entrance. The guide wheels provide a buffering effect on the bottle cap. Subsequently, the pushing force on the bottle cap pushes the guide wheels to rotate, and the guide wheels carry the bottle cap into the sorting trough. Once inside the sorting trough, the bottle cap slides downwards along the angled plate under neutral force until it reaches the interior of the sorting trough. The guide wheels are installed at the connection between the conveyor belt and the sorting trough; their specific installation and connection method use conventional technology and therefore will not be described in detail.

[0016] Preferably, several connecting rods are evenly arranged on both sides of the conveyor belt in the conveying direction, and the other end of each connecting rod is fixedly connected to the inner wall of the cuboid cover. The conveyor belt does not contact the cuboid cover; the cuboid cover covers the conveyor belt, and the conveyor belt is connected to the cuboid cover through the connecting rods.

[0017] Preferably, the conveyor belt, atomizing nozzle, variable light, spotlight, micro motor, camera equipment, and pneumatic actuator are respectively connected to the control system.

[0018] (3) Beneficial effects

[0019] (1) The variable light lamp, in conjunction with its surrounding reflector, can not only adjust the lighting parameters according to the working environment, but also reflect light to the bottle cap surface from multiple angles. This effectively reduces the reflections and shadows caused by the highly reflective bottle cap surface under different ambient light conditions (such as direct strong light and dim light), ensuring that all parts of the bottle cap receive uniform and appropriate lighting, thereby improving the quality of image acquisition. At the same time, the design of the spotlight and refraction lens further reduces possible lighting blind spots and reflective areas, improving the ability to identify minor defects. The four cameras, arranged in a square and each different, can capture information from different angles on the bottle cap surface. Combined with the optimized lighting conditions, defects can be detected more accurately, especially minor defects that are difficult to detect from a single angle, greatly reducing the possibility of misjudgment and improving the overall detection accuracy.

[0020] (2) The design of the pneumatic push rods and sorting slots in the sorting area ensures that the push rods can make good contact with the bottle cap surface when pushing the bottle caps. This provides sufficient thrust to accurately push the bottle caps into the sorting slots without damaging them. At the same time, the guide wheels at the top of each sorting slot, near the conveyor belt, guide the bottle caps smoothly into the sorting slots, reducing the chance of the bottle caps getting stuck or accidentally entering other sorting slots during the sorting process, thus improving the accuracy and efficiency of sorting. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the present utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the transmission area in this utility model;

[0023] Figure 3 This is a schematic diagram of the detection area in this utility model;

[0024] Figure 4 This is a schematic diagram of the sorting area in this utility model;

[0025] Figure 5 This is a schematic diagram of the installation of the sorting trough in this utility model;

[0026] Figure 6 This is a schematic diagram showing the distribution of refractive lenses on the optical glass substrate in this utility model.

[0027] In the diagram: 1-Conveyor belt, 11-Connecting rod, 2-Cuboid shield, 3-Transfer area, 31-Atomizing nozzle, 4-Detection area, 41-Variable light illumination lamp, 42-Reflector, 43-Spotlight, 44-Optical glass substrate, 45-Refracting lens, 46-Camera equipment, 40-Rotating shaft, 400-Micro motor, 5-Sorting area, 51-Pneumatic push rod, 52-Sorting trough, 520-Mounting bracket, 521-Guide wheel, 6-Control system, 7-Placement trough. Detailed Implementation

[0028] The following will refer to the appendix in the embodiments of this utility model. Figure 1 -Appendix Figure 4 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Example 1: As Figure 1 As shown, the first specific embodiment of this utility model provides an automatic sorting device for cosmetic bottle cap defects, including a conveyor belt 1 and a cuboid cover 2 covering the outside of the conveyor belt. The cuboid cover 2 is divided into a conveying area 3, a detection area 4 and a sorting area 5 along the conveying direction of the conveyor belt. Several pneumatic push rods 51 are fixedly connected to one side of the sorting area 5 in the conveying direction, and several sorting slots 52 are fixedly connected to the other side. The positions of the sorting slots 52 correspond one-to-one with the pneumatic push rods 51. Variable light lamps 41 are fixedly installed in the middle of the inner walls of the detection area 4. Several reflectors 42 are fixedly connected around the outer ring of the variable light lamps 41. Spotlights 43 are fixedly connected to the four corners of the top of the detection area 4. An optical glass substrate 44 is fixedly connected to the bottom of each spotlight 43. The other end of each optical glass substrate 44 is obliquely downward. Several refractive lenses 45 are vertically fixed on the optical glass substrate 44. Several camera devices 46 are fixedly installed on the inner walls of the two sides and the top of the detection area 4 in the conveying direction. A placement slot 7 is fixedly connected to the end of the conveyor belt 1 in the conveying direction. The variable-light illumination 41 located in the center of the inner wall of the detection area 4 can flexibly adjust the intensity, color, and other parameters of the light according to actual conditions. The surrounding reflectors 42, through a specific distribution, effectively reflect light onto the cosmetic bottle cap. This design significantly reduces glare and shadows caused by the high reflectivity of the bottle cap under different ambient light conditions. The spotlights, optical glass substrate 44, and refractive lenses 45 at the four corners of the top of the detection area provide additional illumination to the bottle cap from an oblique angle. The refractive lenses 45 increase the direction of light refraction, further reducing potential blind spots and reflective areas, making it easier to detect minor imperfections on the bottle cap surface even in complex lighting conditions, thus improving the ability to identify minor defects. The square-distributed and differently positioned cameras 46 fixed on both sides and the top inner wall of the detection area 4 can simultaneously capture information from different angles on the bottle cap surface from multiple perspectives, avoiding blind spots that may occur with a single perspective and providing a more comprehensive reflection of the bottle cap's appearance. Combined with optimized lighting conditions, defects can be detected more accurately, especially tiny defects that are difficult to detect from a single angle, greatly reducing the possibility of misjudgment and improving overall detection accuracy.

[0030] Several atomizing nozzles 31 are installed at the top of the conveyor zone 3, each connected to a water supply system via a pipe. During the production, transportation, or storage of cosmetic bottle caps, their surfaces may become contaminated with dust, debris, and other impurities. The water mist sprayed from the atomizing nozzles 31 effectively washes away these impurities, keeping the bottle cap surfaces clean. Clean bottle cap surfaces help improve the accuracy of subsequent inspection and sorting, avoiding misjudgments or omissions. In dry environments, bottle caps are prone to static electricity, which attracts surrounding dust, making the bottle cap surfaces dirty. The water mist sprayed from the atomizing nozzles 31 increases air humidity, effectively reducing static electricity generation and preventing dust from adhering to the bottle caps due to static electricity. This maintains the cleanliness of the bottle cap surfaces, reduces misjudgments caused by dust adsorption, and also helps maintain the cleanliness of the inspection and sorting areas, reducing the risk of equipment malfunctions due to dust accumulation. At the same time, by increasing air humidity and reducing static electricity through the atomizing nozzle 31, the bottle caps can be kept in a proper separation state, ensuring that the bottle caps can move smoothly on the conveyor belt, avoiding blockages or sorting errors caused by bottle cap sticking together, and improving the operating efficiency of the sorting device.

[0031] The reflectors 42 on both sides of the conveying direction of the detection area 4 are arranged in an isosceles triangle, while the reflectors 42 at the bottom and top of the detection area 4 are arranged in a square. This isosceles triangular and square arrangement of the reflectors 42 allows the light emitted by the variable illumination lamp 41 to be reflected onto the cosmetic bottle cap from multiple different angles. This multi-angle reflection effectively fills in the shadow areas that may be produced by a single light source, providing more uniform illumination to the bottle cap surface and reducing image brightness differences caused by uneven lighting. This improves the quality of image acquisition and provides more favorable conditions for accurate detection of bottle cap defects. Simultaneously, for cosmetic bottle caps with high reflectivity, this design significantly reduces reflection, preventing image information loss or misjudgment due to excessive reflection, and improving the visibility and detection accuracy of bottle cap defects.

[0032] Light shining from different directions onto a defect will produce different lighting and shadow effects. These changes in light and shadow, after being captured by the camera device 46, can more clearly display the detailed features of the defect. This means the camera device 46 can better capture the differences between minute defects and normal surfaces, improving the detection capability for minute defects and reducing the false negative rate. Furthermore, the distribution of the reflectors 42 ensures that all parts of the bottle cap receive sufficient light illumination and reflection. Whether it's the top, sides, or edges of the bottle cap, clear images can be presented under light from different angles. This allows the detection system to more comprehensively detect defects on the bottle cap surface, avoiding the omission of defects due to blind spots in lighting, thereby improving the reliability and accuracy of the entire detection process.

[0033] There are four cameras 46 arranged in a square, each unique. These four cameras are positioned on both sides and the inner top wall of the conveyor belt in the inspection area 4, allowing them to capture images of the cosmetic bottle caps from different angles. This provides comprehensive coverage of the bottle caps, avoiding blind spots caused by a single camera and significantly improving the comprehensiveness and accuracy of defect detection. Furthermore, the cameras at different positions capture images of the bottle caps from various angles. These multi-angle images complement each other, providing a more complete picture of the bottle cap's appearance and enabling a more accurate determination of whether defects exist, their specific location, and type.

[0034] For minor imperfections that are difficult to detect from a single viewpoint, comparing and analyzing images from multiple perspectives can reveal changes in light and shadow or differences in detail at different angles, making it easier to distinguish them from normal surfaces. This helps improve the accuracy of detecting minor imperfections, ensuring that only bottle caps with genuine defects are sorted out, thus improving product quality.

[0035] Each reflector 42 and optical glass substrate 44 is rotatably connected to a rotating shaft 40. The other end of the rotating shaft 40 is connected to a micro motor 400 via gears, and the micro motor 400 is fixed inside a cuboid shield 2. During cosmetic bottle cap defect detection, bottle caps of different types, sizes, and materials exhibit varying light reflection and absorption characteristics, resulting in different visibility of surface defects under different lighting angles. By driving the rotating shaft 40 to rotate via the micro motor 400, which in turn rotates the reflector 42 and optical glass substrate 44, the reflection and refraction angles of light can be adjusted in real time to achieve optimal lighting effects.

[0036] Each pneumatic pusher 51 is pushed in a direction perpendicular to the conveyor belt 1. The bottom end of the pneumatic pusher 51 is in contact with the top end of the conveyor belt 1, and the head of the pneumatic pusher 51 is arc-shaped, with a rubber pad fixedly connected inside the arc. Compared with non-vertical pushing, vertical pushing can more accurately control the movement direction of the bottle cap, reducing the offset or rolling of the bottle cap due to lateral force during pushing, thereby improving the accuracy of the bottle cap entering the sorting slot 52 and reducing the probability of the bottle cap being mistakenly pushed into other sorting slots. During the pushing process, the tight contact between the pneumatic pusher 51 and the conveyor belt 1 can effectively prevent the bottle cap from slipping off the bottom of the pusher or causing pushing failure due to poor contact, further improving the reliability and accuracy of sorting. The arc-shaped head of the pneumatic pusher 51 fits the circular or arc-shaped surface of the bottle cap better, and can better disperse the pushing force during pushing, reducing local pressure concentration. The rubber pad can absorb and disperse some of the impact force when the pusher pushes the bottle cap, playing a buffering and shock-absorbing role. Even under strong thrust, the rubber pad can effectively protect the bottle cap surface from damage.

[0037] Each sorting trough 52 has a mounting bracket 520 fixedly installed at its top near the conveyor belt 1. Guide wheels 521 are rotatably connected to both ends of the mounting bracket 520. The sorting trough 52 is angled downwards on the side near the conveyor belt 1. When a bottle cap contacts the guide wheel 521, the guide wheel 521 rotates with the movement of the bottle cap. Through this rolling friction, the bottle cap can enter the sorting trough 52 more smoothly and accurately along the predetermined direction, effectively avoiding the problem of the bottle cap getting stuck or accidentally entering other sorting troughs due to positional deviation or angular deviation when entering the sorting trough 52, thus improving sorting accuracy. The angled downwards arrangement of the sorting trough 52 near the conveyor belt 1 utilizes gravity, allowing the bottle caps pushed into the sorting trough 52 to slide smoothly down the slope into the sorting trough 52 under their own weight. This guides the bottle caps into the trough more naturally and quickly, reducing the possibility of bottle caps accumulating or clogging at the entrance of the sorting trough 52, further improving the smoothness and efficiency of the sorting process. Furthermore, the buffer design of the guide wheel 51 and the downward-sloping ramp design can effectively absorb and disperse the impact force of the bottle cap, causing it to slide down the slope instead of bouncing back to the conveyor belt 1 or other positions. This ensures that the bottle cap can accurately enter the sorting trough 52 and stay in the trough, avoiding the problem of needing to re-sort or causing equipment failure due to the bottle cap bouncing back.

[0038] Several connecting rods 11 are evenly arranged on both sides of the conveyor belt 1 in the conveying direction, and the other end of each connecting rod 11 is fixedly connected to the inner wall of the cuboid cover 2.

[0039] The conveyor belt 1, atomizing nozzle 31, variable light 41, spotlight 43, micro motor 400, camera 46, and pneumatic pusher 51 are connected to the control system. The control system automatically adjusts the lighting parameters of the variable light 41 and spotlight 43, as well as the angles of the reflector 42 and optical glass substrate 44 driven by the micro motor 400, based on factors such as the material, color, and type of defect in the bottle caps, providing optimal lighting conditions for the camera 46. This collaborative operation highlights the defect features on the bottle cap surface, reduces the impact of reflections and shadows on image acquisition, and thus improves the accuracy of the camera 46 in detecting bottle cap defects. Then, based on the detection results from the camera 46, the control system precisely controls the pushing time, force, and stroke of the pneumatic pusher 51, ensuring that defective bottle caps are accurately pushed into the corresponding sorting slot 52. This avoids sorting errors caused by inaccurate or inconsistent manual operation, improves the accuracy and reliability of sorting, and guarantees product quality.

[0040] Working principle: When in use, first place the bottle cap on the conveyor belt 1 and start the conveyor belt 1. The conveyor belt 1 will transport the bottle cap from the conveyor zone 3. During the transport process, the atomizing nozzle 31 sprays and cleans the bottle cap. Under the transport of the conveyor belt 1, the bottle cap enters the detection zone 4 after passing through the conveyor zone 1. At this time, the control system 6 adjusts the lighting parameters of the variable light lamp 41 according to the ambient light conditions. At the same time, it controls the micro motor 400 to adjust the angle of the reflector 42 and the optical glass substrate 44 as needed. The control system 6 will also turn on the spotlight 43 to provide oblique lighting. Subsequently, the camera device 46 takes pictures of the bottle cap from multiple angles and transmits them to the control system 6. The control system 6 analyzes the image to determine whether the bottle cap has defects and the type of defects, and marks the bottle cap. After passing through the detection area 4, the bottle cap immediately enters the sorting area 5. In the sorting area 5, the corresponding pneumatic push rod 51, under the control of the control system 6, pushes the bottle cap toward the corresponding sorting groove 52. The bottle cap approaches the guide wheel 521 under the push of the pneumatic push rod 51, and its thrust will push the guide wheel 521 to rotate. The guide wheel 521 then guides the bottle cap to slide down the downward-sloping sorting groove 52. The remaining bottle caps continue to be conveyed by the conveyor belt 1. During the conveying process, the bottle caps are pushed into the corresponding sorting groove 52 by the pneumatic push rod 51 according to their type. Finally, the bottle caps without defects or without detected defects reach the end of the conveyor belt 1 and enter the placement groove 7.

Claims

1. An automatic sorting device for defective cosmetic bottle caps, comprising a conveyor belt (1) and a cuboid cover (2) covering the conveyor belt (1), wherein the cuboid cover (2) is divided into a conveying area (3), a detection area (4), and a sorting area (5) along the conveying direction of the conveyor belt (1), wherein a plurality of pneumatic push rods (51) are fixedly connected to one side of the sorting area (5) in the conveying direction, and a plurality of sorting slots (52) are fixedly connected to the other side, wherein the positions of the sorting slots (52) correspond one-to-one with the pneumatic push rods (51), characterized in that, A variable light lamp (41) is fixed in the middle of the inner wall of the detection area (4). A number of reflectors (42) are fixedly connected around the outer ring of the variable light lamp (41). A spotlight (43) is fixedly connected at the four corners of the top of the detection area (4). An optical glass substrate (44) is fixedly connected at the bottom of each spotlight (43). The other end of each optical glass substrate (44) is set obliquely downward. A number of refractive lenses (45) are vertically fixed on the optical glass substrate (44). A number of camera devices (46) are fixed on the inner walls of both sides of the conveying direction of the detection area (4). A placement groove (7) is fixedly connected at the end of the conveyor belt (1) in the conveying direction.

2. The automatic sorting device for defective cosmetic bottle caps according to claim 1, characterized in that, The top of the conveying area (3) is provided with several atomizing nozzles (31), and each atomizing nozzle (31) is connected to a water supply device through a pipe.

3. The automatic sorting device for defective cosmetic bottle caps according to claim 1, characterized in that, The reflectors (42) on both sides of the transmission direction of the detection area (4) are arranged in an isosceles triangle, and the reflectors (42) at the bottom and top of the detection area (4) are arranged in a square.

4. The automatic sorting device for defective cosmetic bottle caps according to claim 1, characterized in that, There are four camera devices (46) in total, arranged in a square, and each camera device (46) is different.

5. The automatic sorting device for defective cosmetic bottle caps according to claim 1, characterized in that, Each of the reflectors (42) and optical glass substrates (44) is rotatably connected to a rotating shaft (40) on its back. The other end of the rotating shaft (40) is rotatably connected to a micro motor (400) via a gear. The micro motor (400) is fixed inside the cuboid shield (2).

6. The automatic sorting device for cosmetic bottle cap defects according to claim 1, characterized in that, The pushing direction of each pneumatic push rod (51) is perpendicular to the conveying direction of the conveyor belt (1). The bottom end of the pneumatic push rod (51) is in contact with the top end of the conveyor belt (1). The head of the pneumatic push rod (51) is set in an arc shape, and a rubber pad is fixedly connected inside the arc shape.

7. The automatic sorting device for defective cosmetic bottle caps according to claim 1, characterized in that, Each sorting trough (52) has a mounting bracket (520) fixedly installed on the top side near the conveyor belt (1). The two ends of the mounting bracket (520) are rotatably connected to guide wheels (521). The sorting trough (52) is set obliquely downward on the side near the conveyor belt (1).

8. The automatic sorting device for cosmetic bottle cap defects according to claim 1, characterized in that, Several connecting rods (11) are evenly arranged on both sides of the conveyor belt (1) in the conveying direction, and the other end of each connecting rod (11) is fixedly connected to the inner wall of the cuboid cover (2).

9. An automatic sorting device for defective cosmetic bottle caps according to claim 1, characterized in that, The conveyor belt (1), atomizing nozzle (31), variable light lamp (41), spotlight (43), micro motor (400), camera device (46) and pneumatic push rod (51) are respectively connected to the control system (6).

Images