Full-automatic lamp inspection machine for large infusion medicine bottle

Abstract

The invention provides a full-automatic lamp inspection machine for a large infusion medicine bottle, and belongs to the technical field of lamp inspection machines, the full-automatic lamp inspection machine comprises a rack, a bottle feeding mechanism, a foreign matter detection mechanism and a bottle discharging mechanism are arranged on the rack, and the foreign matter detection mechanism detects the foreign matter state of the medicine bottle to generate a foreign matter removing signal of a target medicine bottle; the bottle discharging mechanism is sequentially provided with an appearance detecting mechanism and a bottle removing mechanism in the conveying direction of the medicine bottles, and the appearance detecting mechanism detects the appearance states of the medicine bottles to generate appearance removing signals of the target medicine bottles. The medicine bottle removing device further comprises a controller, and the controller is configured to receive the foreign matter removing signal and / or the appearance removing signal and generate an execution signal for driving the bottle removing mechanism to act so as to remove the target medicine bottle from the bottle discharging mechanism. The lamp inspection machine provided by the invention can realize integration of foreign matter detection and appearance detection of large infusion medicine bottles, is high in efficiency, is detection equipment with an automatic removal function, guarantees the quality of large infusion products, improves the production efficiency, and reduces the operation cost.

Description

Technical Field

[0001] This invention belongs to the field of light inspection machine technology, and more specifically, it relates to a fully automatic light inspection machine for large infusion bottles. Background Technology

[0002] Traditional inspection of large-volume infusion bottles mainly relies on manual light inspection, where inspectors visually inspect the bottles for foreign objects and defects under specific light sources.

[0003] However, manual inspection has many insurmountable drawbacks: on the one hand, the inspection efficiency is low, and the speed of manual inspection is limited, making it difficult to match the high-speed production rhythm of modern large-volume parenteral solutions production lines, which can easily create production bottlenecks and affect overall production efficiency; on the other hand, the inspection accuracy is unstable, affected by factors such as the visual condition, work experience, fatigue level, and subjective judgment differences of the inspectors, resulting in a low recognition rate of small foreign objects and minor appearance defects, which can easily lead to missed detections and false detections, and cannot guarantee the consistency of inspection quality; in addition, manual inspection is labor-intensive, and long-term repetitive observation work can easily lead to fatigue of the inspectors, further increasing the risk of missed detections and false detections, while labor costs are also rising year by year, increasing the burden on the production and operation of enterprises.

[0004] To address the shortcomings of manual light inspection, some semi-automatic light inspection equipment has gradually emerged in the industry. However, such equipment often suffers from limited functionality, with most only capable of one function: foreign object detection or appearance inspection. They cannot complete the entire inspection process and still require manual assistance to complete the other inspection step, failing to fundamentally eliminate reliance on human labor. At the same time, some equipment has poor detection accuracy and stability, insufficient adaptability to large-volume infusion bottles of different specifications and materials, and lacks an effective linkage rejection mechanism. Even if non-conforming products are detected, manual intervention is still required for rejection, making it difficult to achieve automated closed-loop control of detection and rejection. This means that the risk of non-conforming products flowing into the next process still exists. Summary of the Invention

[0005] The purpose of this invention is to provide a fully automatic light inspection machine for large-volume infusion bottles. It aims to provide a highly efficient inspection device that integrates foreign object detection and appearance inspection of large-volume infusion bottles, and has an automated rejection function, so as to replace the shortcomings of traditional manual inspection and existing simple light inspection equipment, ensure the quality of large-volume infusion products, improve production efficiency, and reduce operating costs.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A fully automatic light inspection machine for large-volume infusion bottles is provided, comprising a frame, on which a bottle inlet mechanism, a foreign object detection mechanism, and a bottle outlet mechanism are arranged. The foreign object detection mechanism is located between the bottle inlet mechanism and the bottle outlet mechanism. The bottle inlet mechanism is used to convey bottles to the foreign object detection mechanism. The foreign object detection mechanism generates a foreign object rejection signal for the target bottle by detecting the foreign object status of the bottle. The bottle outlet mechanism is used to convey the bottles after foreign object detection to the next process. Along the conveying direction of the bottles, the bottle outlet mechanism is sequentially provided with an appearance inspection mechanism and a bottle rejection mechanism. The appearance inspection mechanism generates an appearance rejection signal for the target bottle by detecting the appearance status of the bottle. The fully automatic light inspection machine for large-volume infusion bottles also includes a controller electrically connected to the foreign object detection mechanism, the appearance inspection mechanism, and the bottle rejection mechanism. The controller is configured to receive foreign object rejection signals and / or appearance rejection signals, and generate an execution signal to drive the bottle rejection mechanism to remove the target bottle from the bottle dispensing mechanism.

[0007] In one possible implementation, the bottle feeding mechanism includes: A bottle inlet conveyor belt is mounted on the frame; The bottle inlet guide wheel is located at the end of the bottle inlet conveyor belt; A bottle infeed motor is mounted on the frame and is used to drive the bottle infeed dial to rotate counterclockwise. Multiple bottle-feeding grippers are arranged around the bottle-feeding wheel. The bottle-feeding grippers have switchable open and clamping states, and are used to clamp the medicine bottles at the end of the bottle-feeding conveyor belt onto the bottle-feeding wheel and transport them to the foreign object detection mechanism as the wheel rotates.

[0008] In one possible implementation, the foreign object detection mechanism includes: The main turntable is located at the conveying end of the bottle feeding mechanism; A main motor is mounted on the frame and is used to drive the main turntable to rotate clockwise. Multiple bottle-clamping finger assemblies are arranged around the main turntable. The bottle-clamping finger assemblies can be switched to an open state and a clamping state, and are used to clamp the medicine bottle at the conveying end of the bottle feeding mechanism onto the main turntable and convey it to the bottle discharging mechanism as it rotates. Multiple foreign object detection cameras are installed on the outer periphery of the main turntable and electrically connected to the controller to detect the foreign object status of medicine bottles rotating with the main turntable, so as to generate a foreign object removal signal for the target medicine bottle.

[0009] In one possible implementation, the foreign object detection mechanism further includes: The mounting base is located inside the main turntable and is fixedly connected to the frame; A flip track is fixed to the circumference of the mounting base, and the height of the flip track changes continuously and gradually along the circumference of the mounting base. The bottle-clamping finger assembly is hinged to the main turntable, with one outer end of the bottle-clamping finger assembly used to clamp the medicine bottle, and one inner end of the bottle-clamping finger assembly slidably connected to the flipping track. As the main turntable rotates, the bottle-clamping finger assembly, under the action of the flipping track, drives the medicine bottle to gradually flip, so as to form a continuous flipping state of the medicine bottle.

[0010] In one possible implementation, the bottle-clamping finger assembly includes: The tilting angle block is hinged in the middle to the main turntable; A follower connection is connected to one end of the inner side of the flip angle block. The follower connection is slidably connected to the flip track. The follower connection has the degree of freedom to extend and retract along its own length direction, which is used to adaptively adjust the continuous flipping state of the medicine bottle. The first bottle-clamping finger and the second bottle-clamping finger are symmetrically hinged to one side of the flip angle block. A tension spring is connected between the first bottle-clamping finger and the second bottle-clamping finger. The outer side of the two fingers has a finger clamping end, and the inner side has a finger driving end. The second cam is fixed on the frame and is adapted to the finger drive end to overcome the elastic force of the tension spring so that the finger gripping end is in an open state.

[0011] In one possible implementation, the follower connection includes: A flip guide fork has teeth at its end, and the teeth are fitted onto the flip track. The flip telescopic shaft has one end fixed to the inner side of the flip angle block, and the other end is axially rotatably connected to the front end of the flip guide fork. The flip telescopic shaft has axial extension and retraction freedom relative to the flip guide fork.

[0012] In one possible implementation, the bottle dispensing mechanism includes: The pulley assembly includes a driving pulley and a driven pulley arranged horizontally and spaced apart from each other. A synchronous belt is wound around both the driving pulley and the driven pulley. The synchronous belt forms a tight side and a slack side on both sides of the driving pulley and the driven pulley, respectively. Multiple partitions are spaced apart along the length of the outer surface of the synchronous belt. A receiving gap is formed between two adjacent partitions to accommodate medicine bottles delivered from the foreign object detection mechanism. A bottle-discharging motor is mounted on the frame. The bottle-discharging motor is used to drive the drive pulley to rotate counterclockwise, thereby driving the synchronous belt to rotate counterclockwise. The bottle-out conveyor belt is set on the frame and located below the loose side of the synchronous belt. It is used to support the medicine bottles located in the receiving gap and transport them to the next process. The appearance inspection mechanism and the bottle rejection mechanism are arranged sequentially on the bottle-out conveyor belt along the conveying direction.

[0013] In one possible implementation, a first guardrail is provided on the outer periphery of the drive pulley, the first guardrail extending along the slack side of the timing belt, and the first guardrail is fixed to the frame to prevent the medicine bottle from falling off.

[0014] In one possible implementation, the appearance inspection mechanism includes: The appearance inspection station is located on the slack side of the synchronous belt. The appearance inspection station is equipped with multiple appearance inspection cameras around its circumference to detect the appearance status of the medicine bottles conveyed along the slack side of the synchronous belt, so as to generate an appearance rejection signal for the target medicine bottle.

[0015] In one possible implementation, the bottle-removing mechanism includes: The defective product output channel is located outside the loose side of the synchronous belt and perpendicular to the conveying direction of the bottle outlet conveyor belt; The rejection cylinder is located on the inner side of the slack side of the synchronous belt. The output end of the rejection cylinder is equipped with a bottle rejection block. The rejection cylinder is electrically connected to the controller. The controller generates an execution signal to drive the rejection cylinder to move the bottle rejection block, so as to push the target medicine bottle on the bottle conveyor belt to the defective product output channel.

[0016] The beneficial effects of the fully automatic light inspection machine for large-volume infusion bottles provided by this invention are as follows: Compared with the prior art, in this solution, the foreign matter detection mechanism and the appearance inspection mechanism are sequentially integrated on the frame along the bottle conveying direction. After the bottles are conveyed by the bottle feeding mechanism, the two processes of foreign matter residue detection and appearance defect detection can be completed on the same equipment. There is no need to transfer the bottles between different devices or manually supplement the inspection, which greatly simplifies the inspection process and avoids the risk of bottle contamination and breakage that may occur during the transfer process. At the same time, it ensures that the quality inspection covers the quality hidden points of large-volume infusion bottles, thus providing a guarantee for medication safety.

[0017] Secondly, by replacing manual visual inspection with foreign object detection and appearance inspection, minute foreign objects (such as tiny glass fragments and fibers) and minor appearance defects (such as tiny cracks and slight deformations) can be accurately captured. This avoids the problems of human inspection being affected by eyesight, fatigue, and subjective judgment differences. In addition, the standardized processing of detection signals by the controller ensures the consistency of detection standards for different batches and different specifications of medicine bottles, further improving the reliability of detection results, effectively reducing the risk of unqualified products flowing into the next process, and effectively ensuring the quality of large-volume parenteral solutions.

[0018] Meanwhile, the entire process is automated. The bottle feeding mechanism automatically transports medicine bottles, the testing mechanism automatically completes the testing, and the bottle discharging mechanism automatically transports the bottles to the next process. The controller can also automatically drive the bottle rejection mechanism to reject unqualified products based on the testing signal. The entire process requires no manual intervention, which can match the high-speed production rhythm of modern large-volume parenteral solutions production lines, break through the production bottleneck caused by manual testing, significantly increase the testing volume per unit time, and thus improve the overall production efficiency.

[0019] In addition, it effectively reduces the operating costs of enterprises and improves the economic efficiency of production. On the one hand, the fully automated design replaces the manual inspection process, which can reduce the demand for professional inspection personnel and reduce labor costs such as wages and training. On the other hand, the integrated inspection architecture reduces the cost of purchasing and maintaining multiple devices, while also reducing the cost of rework and scrapping of non-conforming products caused by human error or oversight, as well as potential quality accident losses, thus optimizing the cost structure of enterprises.

[0020] Finally, this solution adapts to the needs of modern production lines, enhancing the level of intelligent production. Through a controller, it achieves coordinated control of the foreign object detection mechanism, appearance inspection mechanism, and bottle rejection mechanism, forming an automated closed loop of "detection-judgment-rejection." It can be directly integrated into modern large-volume parenteral solution production lines without requiring significant modifications to existing lines. Furthermore, the standardized detection and rejection logic facilitates the traceability and management of production quality data (such as statistics on the types and quantities of non-conforming products), providing data support for production process optimization. This meets the intelligent and continuous production needs of modern large-volume parenteral solution production lines, improving the overall production management level of enterprises.

[0021] In summary, this technical solution, through its integrated detection architecture and automated linkage control design, can comprehensively address the shortcomings of traditional manual methods and existing equipment in terms of detection completeness, accuracy, efficiency, cost, and production line adaptability. It achieves the core objectives of ensuring drug safety, improving production efficiency, and reducing operating costs, and has significant practical significance and application value. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the fully automatic light inspection machine for large-volume infusion bottles provided by the present invention; Figure 2 This is a schematic diagram of the bottle inlet mechanism provided by the present invention; Figure 3 This is a schematic diagram of the foreign object detection mechanism provided by the present invention; Figure 4 This is a partial schematic diagram of the mating relationship near the bottle-clamping finger assembly provided by the present invention; Figure 5 A top view of the bottle-clamping finger assembly provided by the present invention; Figure 6 This is a schematic diagram of the bottle dispensing mechanism provided by the present invention; Figure 7 This is a schematic diagram of the bottle-removing mechanism provided by the present invention.

[0024] In the picture: 1. Bottle feeding mechanism; 2. Foreign object detection mechanism; 3. Appearance inspection mechanism; 4. Bottle rejection mechanism; 5. Bottle dispensing mechanism; 101. Bottle inlet conveyor belt; 102. Bottle inlet dial wheel; 103. Bottle inlet gripper; 104. First cam; 105. Bottle inlet motor; 201. Main turntable; 202. Bottle-clamping finger assembly; 203. Tilting track; 204. Mounting base; 205. Foreign object detection camera; 206. Frame; 207. Second cam; 208. Main motor; 2021. Flipping guide fork; 2022. Flipping telescopic shaft; 2023. Flipping angle block; 2024. Rotating seat; 2025. Bearing body; 2026. First bottle-clamping finger; 2027. Second bottle-clamping finger; 2028. Tensioning spring; 401. Bottle rejection block; 402. Defective product output channel; 403. Second gate; 404. Rejection cylinder; 501. Driving pulley; 502. Driven pulley; 503. Synchronous belt; 504. First guardrail; 505. Bottle conveyor belt. Detailed Implementation

[0025] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] Unless otherwise explicitly specified, the use of terms such as "first," "second," or "third" is intended to distinguish different objects, not to describe a specific order.

[0027] Unless otherwise expressly defined, the use of directional terms such as “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “clockwise,” “counterclockwise,” “high,” and “low” to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of the invention.

[0028] Please see Figure 1 The present invention will now describe a fully automatic light inspection machine for large-volume infusion bottles. The fully automatic light inspection machine for large-volume infusion bottles includes a frame 206, on which a bottle inlet mechanism 1, a foreign object detection mechanism 2, and a bottle outlet mechanism 5 are arranged. The foreign object detection mechanism 2 is located between the bottle inlet mechanism 1 and the bottle outlet mechanism 5. The bottle inlet mechanism 1 is used to convey bottles to the foreign object detection mechanism 2. The foreign object detection mechanism 2 generates a foreign object rejection signal for the target bottle by detecting the foreign object status of the bottle. The bottle outlet mechanism 5 is used to convey the bottles after foreign object detection to the next process. Along the conveying direction of the bottles, the bottle outlet mechanism 5 is sequentially equipped with an appearance inspection mechanism 3 and a bottle rejection mechanism 4. The appearance inspection mechanism 3 generates an appearance rejection signal for the target bottle by detecting the appearance status of the bottle.

[0029] The fully automatic light inspection machine for large-volume infusion bottles also includes a controller (not shown in the figure) that is electrically connected to the foreign object detection mechanism 2, the appearance inspection mechanism 3, and the bottle rejection mechanism 4. The controller is configured to receive foreign object rejection signals and / or appearance rejection signals, and generate an execution signal to drive the bottle rejection mechanism 4 to remove the target bottle by the bottle ejection mechanism 5.

[0030] Specifically, the frame 206 is made of 304 stainless steel, possessing sufficient structural strength and corrosion resistance, providing a stable installation foundation for each mechanism. The bottle inlet mechanism 1, foreign object detection mechanism 2, and bottle outlet mechanism 5 are sequentially fixed on the frame 206 according to the process flow. The foreign object detection mechanism 2 is located between the bottle inlet mechanism 1 and the bottle outlet mechanism 5, forming a continuous "bottle inlet-detection-bottle outlet" operation. Along the bottle conveying direction, the bottle outlet mechanism 5 is sequentially equipped with an appearance inspection mechanism 3 and a bottle rejection mechanism 4. The controller is fixed in the electrical control cabinet on the side of the frame 206 and is electrically connected to the foreign object detection mechanism 2, appearance inspection mechanism 3, bottle rejection mechanism 4, and each drive motor via cables, realizing real-time signal transmission and action control.

[0031] During operation, the bottle feeding mechanism 1 smoothly transports the medicine bottle to be inspected to the foreign object detection mechanism 2. The foreign object detection mechanism 2 detects foreign objects in the medicine bottle and generates a foreign object rejection signal. After the medicine bottle is transported to the bottle exit mechanism 5, the appearance inspection mechanism 3 inspects the appearance of the medicine bottle and generates an appearance rejection signal. After receiving the above signal, the controller generates an execution signal to drive the bottle rejection mechanism 4 to remove the target medicine bottle from the bottle exit mechanism 5. The qualified medicine bottle continues to be transported to the next process.

[0032] This invention provides a fully automatic light inspection machine for large-volume infusion bottles. Compared with the prior art, in this solution, the foreign matter detection mechanism 2 and the appearance inspection mechanism 3 are sequentially integrated on the frame 206 along the bottle conveying direction. After the bottles are conveyed by the bottle feeding mechanism 1, the two processes of foreign matter residue detection and appearance defect detection can be completed on the same equipment. There is no need to transfer the bottles between different equipment or manually supplement the inspection, which greatly simplifies the inspection process and avoids the risk of bottle contamination and breakage that may occur during the transfer process. At the same time, it ensures that the quality inspection covers the quality hidden points of large-volume infusion bottles, thus providing a guarantee for medication safety.

[0033] Secondly, by replacing manual visual inspection with foreign object detection mechanism 2 and appearance inspection mechanism 3, tiny foreign objects (such as fine glass fragments and fibers) and minor appearance defects (such as tiny cracks and slight deformations) can be accurately captured. This avoids the problems of human inspection being affected by eyesight, fatigue, and subjective judgment differences. In addition, the standardized processing of detection signals by the controller ensures the consistency of detection standards for different batches and different specifications of medicine bottles, further improving the reliability of detection results, effectively reducing the risk of unqualified products flowing into the next process, and effectively ensuring the quality of large-volume parenteral solutions.

[0034] Meanwhile, the entire process is automated. The bottle feeding mechanism 1 automatically transports medicine bottles, the detection mechanism automatically completes the detection, and the bottle discharging mechanism 5 automatically transports the bottles to the next process. The controller can also automatically drive the bottle rejection mechanism 4 to reject unqualified products based on the detection signal. The entire process does not require manual intervention, which can match the high-speed production rhythm of modern large-volume parenteral solution production lines, break through the production bottleneck caused by manual detection, significantly increase the detection volume per unit time, and thus improve the overall production efficiency.

[0035] In addition, it effectively reduces the operating costs of enterprises and improves the economic efficiency of production. On the one hand, the fully automated design replaces the manual inspection process, which can reduce the demand for professional inspection personnel and reduce labor costs such as wages and training. On the other hand, the integrated inspection architecture reduces the cost of purchasing and maintaining multiple devices, while also reducing the cost of rework and scrapping of non-conforming products caused by human error or oversight, as well as potential quality accident losses, thus optimizing the cost structure of enterprises.

[0036] Finally, this solution adapts to the needs of modern production lines, improving the level of intelligent production. Through the controller, it realizes the linkage control of foreign object detection mechanism 2, appearance inspection mechanism 3 and bottle rejection mechanism 4, forming an automated closed loop of "detection-judgment-rejection". It can be directly connected to modern large-volume parenteral solution production lines without the need for major modifications to existing production lines. Moreover, the standardized detection and rejection logic facilitates enterprises to trace and manage production quality data (such as the type and quantity statistics of non-conforming products), providing data support for production process optimization, meeting the intelligent and continuous production needs of modern large-volume parenteral solution production lines, and improving the overall production management level of enterprises.

[0037] In summary, this technical solution, through its integrated detection architecture and automated linkage control design, can comprehensively address the shortcomings of traditional manual methods and existing equipment in terms of detection completeness, accuracy, efficiency, cost, and production line adaptability. It achieves the core objectives of ensuring drug safety, improving production efficiency, and reducing operating costs, and has significant practical significance and application value.

[0038] It should be noted that: Target medicine bottle: A non-conforming medicine bottle that is found to contain foreign objects by the foreign object detection agency 2, or whose appearance does not meet the standards by the appearance inspection agency 3, and needs to be rejected by the bottle rejection agency 4.

[0039] Foreign object rejection signal: When the foreign object detection camera 205 in the foreign object detection mechanism 2 detects a foreign object in the medicine bottle, it sends an electrical signal to the controller to indicate that the medicine bottle is a defective product and needs to be rejected.

[0040] Appearance rejection signal: When the appearance inspection camera in the appearance inspection agency 3 detects defects in the appearance of the medicine bottle (such as broken bottle body, stains, abnormal label, etc.), it sends an electrical signal to the controller to indicate that the medicine bottle is a defective product and needs to be rejected.

[0041] Execution signal: After receiving the foreign object rejection signal and / or appearance rejection signal, the controller sends an electrical signal to the bottle rejection mechanism 4 to drive it to perform the rejection action.

[0042] Controller: Uses Siemens S7-1200 series PLC, supports Modbus communication protocol, and can realize real-time signal interaction with detection cameras, cylinders and motors.

[0043] Please see Figure 2 The bottle feeding mechanism 1 includes a bottle feeding conveyor belt 101, a bottle feeding dial 102, a bottle feeding motor 105, and multiple bottle feeding grippers 103.

[0044] The bottle feeding mechanism 1's feeding conveyor belt 101 is horizontally fixed to the front end of the frame 206 via a bracket. The feeding conveyor belt 101 is made of food-grade polyurethane with an anti-slip texture on the surface to prevent the medicine bottles from slipping during transport. The feeding conveyor belt 101 is driven by an independent speed-regulating motor, allowing for speed adjustment according to production needs. The feeding wheel 102 is mounted at the end of the feeding conveyor belt 101 via a bearing seat. The feeding motor 105 is fixed below the frame 206 and is connected to the feeding wheel 102 via a synchronous belt 503, driving the feeding wheel 102 to rotate counterclockwise.

[0045] Multiple bottle infeed grippers 103 are evenly distributed circumferentially along the bottle infeed dial 102. Each bottle infeed gripper 103 is hinged to the bottle infeed dial 102 via a pin. A first cam 104 follower is provided in the middle of the bottle infeed gripper 103, which is adapted to the first cam 104 fixed on the frame 206. Specifically, the first cam 104 is fixed on the inner side of the frame 206 of the bottle infeed dial 102, and its outline is adapted to the follower of the bottle infeed gripper 103. When the bottle inlet gripper 103 rotates with the bottle inlet dial 102 to the junction of the bottle inlet conveyor belt 101, the follower of the first cam 104 contacts the first cam 104, causing the bottle inlet gripper 103 to overcome the internal spring force and be in an open state. The medicine bottle enters the clamping area of ​​the bottle inlet gripper 103 from the end of the bottle inlet conveyor belt 101. As the bottle inlet dial 102 continues to rotate, the follower of the first cam 104 disengages from the constraint of the first cam 104, and the bottle inlet gripper 103 switches to the clamping state under the action of the spring, clamping the mouth of the medicine bottle. It then rotates counterclockwise with the bottle inlet dial 102 to the junction position with the foreign object detection mechanism 2.

[0046] The bottle inlet gripper 103 is used to hold the bottle mouth during transport, avoiding the friction and squeezing of the bottle body by traditional dials and railings, effectively protecting the smoothness and integrity of the bottle's appearance, and reducing the interference of bottle damage on the test results; the opening and clamping states of the bottle inlet gripper 103 are automatically switched by the first cam 104 mechanism, with precise and reliable action, ensuring a smooth and stable transfer process of the bottle and improving the bottle inlet efficiency.

[0047] Please see Figure 3 The foreign object detection mechanism 2 includes a main turntable 201, a main motor 208, multiple bottle-clamping finger assemblies 202, multiple foreign object detection cameras 205, a mounting base 204, and a flipping track 203.

[0048] The main turntable 201 of the foreign object detection mechanism 2 is mounted in the middle of the frame 206 via bearings. The main motor 208 is fixed below the frame 206 and is connected to the main turntable 201 via a gearbox, driving the main turntable 201 to rotate clockwise. The rotation speed can be steplessly adjusted by a controller. Multiple bottle-clamping finger assemblies 202 are evenly distributed around the circumference of the main turntable 201, and the spacing between adjacent assemblies matches the spacing of the bottle-feeding claws 103 of the bottle-feeding mechanism 1, ensuring accurate transfer of medicine bottles.

[0049] Multiple foreign object detection cameras 205 are fixed to the outer periphery of the main turntable 201 by brackets. The shooting angle of the cameras can be adjusted according to the shape of the medicine bottle and the detection requirements. The cameras are electrically connected to the controller and transmit the collected images of the medicine bottle to the controller for analysis and processing in real time. When a foreign object is detected, a foreign object rejection signal is generated.

[0050] Specifically, the foreign object detection camera 205 uses a 5-megapixel industrial camera with a shooting frame rate of ≥30fps and is equipped with a foreign object recognition algorithm based on deep learning, which can identify foreign objects as small as 0.1mm.

[0051] The mounting base 204 is a ring-shaped structure, fixed to the frame 206 and located inside the main turntable 201. The flipping track 203 is fixed to the circumference of the mounting base 204 by bolts. The height of the flipping track 203 gradually changes along the circumference of the mounting base 204, forming a smooth guide surface. The bottle-clamping finger assembly 202 is hinged to the flange of the main turntable 201, and one end of its inner side is slidably connected to the flipping track 203. As the main turntable 201 rotates, the bottle is gradually flipped under the guidance of the flipping track 203, achieving 360° all-round detection.

[0052] The main turntable 201 drives the medicine bottle to rotate, and the flipping track 203 enables the medicine bottle to flip continuously, simulating the flipping action of manual light inspection. This effectively reduces the air bubbles generated when non-circular medicine bottles (such as square or flat ones) rotate, reduces the interference of air bubbles on foreign object identification, and improves detection accuracy. Multiple foreign object detection cameras 205 are arranged around the medicine bottle to collect a large number of images during the flipping process. There is no need to set up a tracking swing mechanism, which simplifies the mechanical structure and ensures that there are no blind spots in the detection.

[0053] Please see Figure 4 and Figure 5 The bottle-clamping finger assembly 202 includes a flip angle block 2023, a follower connecting part, a first bottle-clamping finger 2026 and a second bottle-clamping finger 2027, and a second cam 207. The follower connecting part includes a flip guide fork 2021 and a flip telescopic shaft 2022.

[0054] The flip angle block 2023 is hinged to the flange of the main turntable 201 via the rotating seat 2024 and a pin that passes through it, and can rotate freely around the pin. One end of the flip telescopic shaft 2022 of the follower connection is fixedly connected to one end of the inner side of the flip angle block 2023, and the other end is axially rotatably connected to the flip guide fork 2021, and has axial telescopic freedom, which can adapt to the height change of the flip track 203 to ensure the smooth sliding of the bottle clamping finger assembly 202.

[0055] The first bottle-clamping finger 2026 and the second bottle-clamping finger 2027 are symmetrically hinged to the outer end of the flipping angle block 2023. Their inner sides are provided with meshing partial gears, and their outer sides are arc-shaped clamping surfaces adapted to the shape of the medicine bottle opening. A tension spring 2028 is connected between the first bottle-clamping finger 2026 and the second bottle-clamping finger 2027 to maintain their clamping state. The second cam 207 is fixed to the frame 206, located at the junction of the bottle inlet mechanism 1 and the foreign object detection mechanism 2, and at the junction of the foreign object detection mechanism 2 and the bottle outlet mechanism 5. When the bottle-clamping finger assembly 202 rotates to the junction position, the finger drive end contacts the second cam 207 through the bearing body 2025, overcoming the elasticity of the tension spring 2028 to open the finger clamping end. After the medicine bottle is transferred, the finger drive end disengages from the second cam 207 and returns to the clamping state under the action of the tension spring 2028.

[0056] The flipping telescopic shaft 2022 of the follow-up connection has axial extension and retraction freedom, which can adapt to the height change of the flipping track 203, ensuring that the medicine bottle flipping process is smooth and continuous, and avoiding the medicine bottle tilting or falling off; the first bottle clamping finger 2026 and the second bottle clamping finger 2027 achieve synchronous opening and closing through gear meshing, with high clamping accuracy, and automatically handing over with the tension spring 2028 and the second cam 207, with coordinated and reliable action, improving the stability of medicine bottle delivery.

[0057] Please see Figure 6 The bottle dispensing mechanism 5 includes a pulley assembly, a bottle dispensing motor, and a bottle dispensing conveyor belt 505. The pulley assembly includes a driving pulley 501, a driven pulley 502, and a synchronous belt 503.

[0058] The driving pulley 501 and driven pulley 502 of the pulley assembly are horizontally mounted on the frame 206 via bearing seats. The distance between them is set according to production requirements. The synchronous belt 503 is wound around the driving pulley 501 and driven pulley 502. Multiple partitions are spaced along the length of the outer side of the synchronous belt 503. The partitions are made of wear-resistant rubber. The size of the gap between adjacent partitions is adapted to the diameter of the medicine bottle to ensure that each medicine bottle is placed independently.

[0059] Preferably, the spacing (accommodation gap) between two adjacent partitions is consistent with the spacing of the bottle-clamping finger assembly 202 on the main turntable 201, so that bottles passing through the foreign object detection mechanism 2 on the main turntable 201 accurately enter the bottle-dispensing mechanism 5. The partition structure can ensure that medicine bottles passing through the foreign object detection mechanism 2 accurately pass through the appearance inspection station 3 and the bottle-removing mechanism 4, avoiding bottle trajectory misalignment and inaccurate counting.

[0060] The bottle-dispensing motor is fixed below the frame 206 and connected to the drive pulley 501 via a coupling, driving the drive pulley 501 to rotate counterclockwise, which in turn drives the synchronous belt 503 to rotate counterclockwise. The bottle-dispensing conveyor belt 505 is horizontally fixed on the frame 206, located below the slack side of the synchronous belt 503, with the surface of the belt in contact with the bottom of the partition of the synchronous belt 503, supporting the medicine bottles and conveying them in the direction of movement of the synchronous belt 503. The appearance inspection mechanism 3 and the bottle rejection mechanism 4 are arranged sequentially along the conveying direction of the bottle-dispensing conveyor belt 505, respectively completing the appearance inspection of the medicine bottles and the rejection of unqualified products.

[0061] The synchronous belt 503 with partitions works in conjunction with the bottle-out conveyor belt 505 to maintain a stable posture of the medicine bottles within the two partitions (accommodating gaps), avoiding collisions or displacement during transportation. The synchronous belt 503 directly connects to the main turntable 201, eliminating the need for multiple turntables, simplifying the mechanical structure and reducing the overall size of the machine. The bottle-out conveyor belt 505 supports the transportation of medicine bottles, ensuring smooth transportation and providing stable operating conditions for appearance inspection and bottle rejection.

[0062] Please see Figure 6 The first guardrail 504 is constructed using a combination of a high-hardness, high-rigidity, and high-wear-resistant POM body and multiple rows of ball bearings, which significantly reduces friction between the guardrail and the appearance of the medicine bottle. It is fixed to the frame 206, positioned along the outer periphery of the drive pulley 501, and extends to the slack side of the synchronous belt 503. A gap is left between the first guardrail 504 and the partition of the synchronous belt 503, ensuring that the movement of the synchronous belt 503 is not affected while effectively preventing the medicine bottle from falling off during circumferential and linear motion. The height of the first guardrail 504 is slightly lower than the height of the medicine bottle, ensuring protective effectiveness without obstructing the field of view of the appearance inspection mechanism 3.

[0063] The first guardrail 504 provides all-round protection for the transport of medicine bottles, effectively preventing the bottles from falling off due to inertia or vibration during turning and straight transport, thus improving the reliability of equipment operation. The guardrail is made of POM material, which is sturdy, corrosion-resistant, meets the cleanliness requirements of the pharmaceutical industry, and does not affect the normal operation of the testing institution.

[0064] Please see Figure 1 The appearance inspection agency 3 includes an appearance inspection station.

[0065] The appearance inspection station is located in the middle of the bottle-out conveyor belt 505. Multiple appearance inspection cameras are arranged around the circumference of the station via brackets, covering key parts of the bottles such as the bottle body, bottle mouth, and bottle cap. The appearance inspection cameras are electrically connected to the controller, which captures images of the bottle appearance in real time and transmits them to the controller. The controller uses image recognition algorithms to determine whether the bottle appearance meets the standards. If defects are found, an appearance rejection signal is generated.

[0066] Multiple appearance inspection cameras are arranged around the bottle to achieve all-round inspection of the bottle's appearance. They can accurately identify problems such as bottle damage, stains, misaligned labels, and bottle mouth defects, improving the comprehensiveness and accuracy of appearance inspection. Appearance inspection and foreign object inspection are carried out in separate steps with clear division of labor, resulting in high inspection efficiency and ensuring that no unqualified products are missed.

[0067] Please see Figure 7 The bottle rejection mechanism 4 includes a defective product output channel 402 and a rejection cylinder 404.

[0068] The defective product output channel 402 is fixed to the outside of the bottle-out conveyor belt 505, with the channel direction perpendicular to the conveying direction of the bottle-out conveyor belt 505. Second guardrails 403 are provided on both sides of the channel to prevent medicine bottles from falling during conveying. The rejection cylinder 404 is fixed to the inside of the bottle-out conveyor belt 505, and its output end is connected to the rejection block 401 by bolts. The rejection block 401 is made of soft polyurethane material to avoid damaging the medicine bottles.

[0069] The rejection cylinder 404 is electrically connected to the controller. When the controller receives a foreign object rejection signal or an appearance rejection signal, it sends an execution signal to the rejection cylinder 404 when the target medicine bottle moves to the rejection position. The rejection cylinder 404 drives the rejection block 401 to extend and push the target medicine bottle to the defective product output channel 402. After rejection is completed, the rejection block 401 quickly retracts without affecting the subsequent medicine bottle conveying.

[0070] The bottle rejection mechanism 4 is driven by a cylinder, which has a fast and reliable action response and high rejection accuracy. The bottle rejection block 401 is made of soft material to avoid damaging the medicine bottle, while ensuring sufficient pushing force to prevent the target medicine bottle from getting stuck. The defective product output channel 402 is equipped with a second fence 403 for protection, ensuring that unqualified medicine bottles are output smoothly and can be processed centrally.

[0071] The specific working process of the fully automatic light inspection machine for large-volume infusion bottles provided by this invention is as follows: 1) The medicine bottle to be tested is conveyed to the end by the inlet conveyor belt 101. The inlet gripper 103 opens under the action of the first cam 104. After the medicine bottle enters the inlet gripper 103, the inlet gripper 103 closes and rotates counterclockwise with the inlet dial wheel 102, handing the medicine bottle over to the bottle gripping finger assembly 202 of the foreign object detection mechanism 2.

[0072] 2) The bottle-clamping finger assembly 202 clamps the medicine bottle and rotates clockwise with the main turntable 201. Under the action of the flipping track 203, it gradually flips. The foreign object detection camera 205 collects images of the medicine bottle in real time. When a foreign object is detected, a foreign object removal signal is generated and transmitted to the controller.

[0073] 3) After the foreign object detection is completed, the bottle clamping finger assembly 202 opens under the action of the second cam 207, and the medicine bottle is handed over to the receiving gap of the synchronous belt 503 of the bottle dispensing mechanism 5. The medicine bottle moves to the slack side with the synchronous belt 503 and is supported by the bottle dispensing conveyor belt 505 to continue to convey.

[0074] 4) When the medicine bottle moves to the appearance inspection station, the appearance inspection camera captures an image of the medicine bottle's appearance. When a defect is detected, an appearance rejection signal is generated and transmitted to the controller.

[0075] 5) When the target medicine bottle moves to the rejection position, the controller sends an execution signal to drive the rejection cylinder 404 to act. The rejection block 401 pushes the target medicine bottle to the defective product output channel 402, while the qualified medicine bottle continues to be transported to the next process along the bottle output conveyor belt 505.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully automatic light inspection machine for large-volume infusion bottles, characterized in that, The system includes a frame (206), on which a bottle feeding mechanism (1), a foreign object detection mechanism (2), and a bottle dispensing mechanism (5) are provided. The foreign object detection mechanism (2) is located between the bottle feeding mechanism (1) and the bottle dispensing mechanism (5). The bottle feeding mechanism (1) is used to feed medicine bottles to the foreign object detection mechanism (2). The foreign object detection mechanism (2) generates a foreign object rejection signal for the target medicine bottle by detecting the foreign object status of the medicine bottle. The bottle dispensing mechanism (5) is used to transport the medicine bottle after foreign object detection to the next process. The bottle dispensing mechanism (5) is provided with an appearance inspection mechanism (3) and a bottle rejection mechanism (4) in sequence along the conveying direction of the medicine bottle. The appearance inspection mechanism (3) generates an appearance rejection signal for the target medicine bottle by detecting the appearance status of the medicine bottle. The fully automatic light inspection machine for large infusion bottles also includes a controller electrically connected to the foreign object detection mechanism (2), the appearance inspection mechanism (3), and the bottle rejection mechanism (4). The controller is configured to receive foreign object rejection signals and / or appearance rejection signals, and generate an execution signal to drive the bottle rejection mechanism (4) to reject the target bottle from the bottle dispensing mechanism (5).

2. The fully automatic light inspection machine for large-volume infusion bottles as described in claim 1, characterized in that, The bottle feeding mechanism (1) includes: A bottle inlet conveyor belt (101) is mounted on the frame (206); The bottle inlet dial (102) is located at the conveying end of the bottle inlet conveyor belt (101); A bottle feeding motor (105) is mounted on the frame (206) and is used to drive the bottle feeding dial (102) to rotate counterclockwise. Multiple bottle infeed grippers (103) are arranged around the bottle infeed wheel (102). The bottle infeed grippers (103) have switchable open and clamping states, and are used to clamp the medicine bottles at the conveying end of the bottle infeed conveyor belt (101) onto the bottle infeed wheel (102) and convey them to the foreign object detection mechanism (2) as it rotates.

3. The fully automatic light inspection machine for large-volume infusion bottles as described in claim 1, characterized in that, The foreign object detection mechanism (2) includes: The main turntable (201) is located at the conveying end of the bottle feeding mechanism (1); A main motor (208) is mounted on the frame (206) and is used to drive the main turntable (201) to rotate clockwise. Multiple bottle-clamping finger assemblies (202) are arranged around the main turntable (201). The bottle-clamping finger assemblies (202) can be switched to an open state and a clamping state, and are used to clamp the medicine bottle at the conveying end of the bottle feeding mechanism (1) onto the main turntable (201) and convey it to the bottle discharging mechanism (5) as it rotates. Multiple foreign object detection cameras (205) are disposed on the outer periphery of the main turntable (201) and electrically connected to the controller, for detecting the foreign object status of the medicine bottle as it rotates with the main turntable (201) to generate a foreign object removal signal for the target medicine bottle.

4. The fully automatic light inspection machine for large-volume infusion bottles as described in claim 3, characterized in that, The foreign object detection mechanism (2) also includes: The mounting base (204) is located inside the main turntable (201) and is fixedly connected to the frame (206); A flip track (203) is fixed to the circumference of the mounting base (204), and the height of the flip track (203) gradually changes continuously along the circumference of the mounting base (204); The bottle-clamping finger assembly (202) is hinged to the main turntable (201), and one outer end of the bottle-clamping finger assembly (202) is used to clamp the medicine bottle, while the inner end of the bottle-clamping finger assembly (202) is slidably connected to the flipping track (203). As the main turntable (201) rotates, the bottle-clamping finger assembly (202), under the action of the flipping track (203), drives the medicine bottle to gradually flip, so as to form a continuous flipping state of the medicine bottle.

5. The fully automatic light inspection machine for large-volume infusion bottles as described in claim 4, characterized in that, The bottle-clamping finger assembly (202) includes: A flip angle block (2023) is hinged in the middle to the main turntable (201); A follower connection is connected to one end of the inner side of the flip angle block (2023). The follower connection is slidably connected to the flip track (203). The follower connection has the freedom to extend and retract along its own length direction, and is used to adaptively adjust the continuous flipping state of the medicine bottle. The first bottle-clamping finger (2026) and the second bottle-clamping finger (2027) are symmetrically hinged to one side of the flip angle block (2023). A tension spring (2028) is connected between the first bottle-clamping finger (2026) and the second bottle-clamping finger (2027). The outer sides of the two fingers have finger clamping ends, and the inner sides have finger driving ends. The second cam (207) is fixed on the frame (206). The second cam (207) is adapted to the finger drive end to overcome the elastic force of the tension spring (2028) so that the finger gripping end is in an open state.

6. The fully automatic light inspection machine for large-volume infusion bottles as described in claim 5, characterized in that, The follower connection includes: A flip guide fork (2021) has fork teeth at its end, which are clamped on the flip track (203); The flip telescopic shaft (2022) has one end fixed to the inner end of the flip angle block (2023), and the other end is axially rotatably connected to the front end of the flip guide fork (2021). The flip telescopic shaft (2022) has axial extension and retraction freedom relative to the flip guide fork (2021).

7. The fully automatic light inspection machine for large-volume infusion bottles as described in claim 1, characterized in that, The bottle dispensing mechanism (5) includes: The pulley assembly includes a driving pulley (501) and a driven pulley (502) arranged horizontally and spaced apart from each other. A synchronous belt (503) is wound around the driving pulley (501) and the driven pulley (502). The synchronous belt (503) forms a tight side and a loose side on both sides of the driving pulley (501) and the driven pulley (502), respectively. Multiple partitions are arranged at intervals along the length of the outer surface of the synchronous belt (503). A receiving gap is formed between two adjacent partitions to accommodate the medicine bottle delivered by the foreign object detection mechanism (2). A bottle-discharging motor is mounted on the frame (206). The bottle-discharging motor is used to drive the drive pulley (501) to rotate counterclockwise, thereby driving the synchronous belt (503) to rotate counterclockwise. The bottle-out conveyor belt (505) is set on the frame (206) and located below the loose side of the synchronous belt (503). It is used to support the medicine bottles located in the receiving gap and transport them to the next process. The appearance inspection mechanism (3) and the bottle rejection mechanism (4) are arranged sequentially on the bottle-out conveyor belt (505) along the conveying direction.

8. The fully automatic light inspection machine for large-volume infusion bottles as described in claim 7, characterized in that, The outer periphery of the drive pulley (501) is provided with a first guardrail (504), which extends along the loose side of the synchronous belt (503) and is fixed to the frame (206) to prevent the medicine bottle from falling off.

9. The fully automatic light inspection machine for large-volume infusion bottles as described in claim 7, characterized in that, The appearance inspection mechanism (3) includes: The appearance inspection station is located on the slack side of the synchronous belt (503). The appearance inspection station is equipped with multiple appearance inspection cameras around its circumference to detect the appearance status of the medicine bottles conveyed along the slack side of the synchronous belt (503) in order to generate an appearance rejection signal for the target medicine bottle.

10. The fully automatic light inspection machine for large-volume infusion bottles as described in claim 7, characterized in that, The bottle-removal mechanism (4) includes: The defective product output channel (402) is located outside the loose side of the synchronous belt (503) and perpendicular to the conveying direction of the bottle outlet conveyor belt (505); The rejection cylinder (404) is located on the inner side of the loose side of the synchronous belt (503). The output end of the rejection cylinder (404) is provided with a bottle rejection block (401). The rejection cylinder (404) is electrically connected to the controller. The controller generates an execution signal to drive the bottle rejection block (401) to move, so as to push the target medicine bottle on the bottle delivery conveyor belt (505) to the defective product output channel (402).

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