Full-automatic lamp inspection machine for pre-filled syringe

Abstract

The invention provides a full-automatic lamp inspection machine for pre-filled syringes, which belongs to the technical field of lamp inspection machines, and comprises a machine body, a pre-inspection assembly and a quality inspection assembly for detecting accessories and bottle bodies on the pre-filled syringes, and a bottle feeding assembly for conveying the pre-filled syringes to the pre-inspection assembly in a vertical state, the overturning mechanism is arranged between the pre-inspection assembly and the quality inspection assembly; the overturning mechanism can receive the pre-filled and sealed syringes which are subjected to pre-inspection and convey the pre-filled and sealed syringes to the quality inspection assembly, the pre-filled and sealed syringes can be overturned by 180 degrees in the vertical direction in the conveying process, and after the pre-filled and sealed syringes are detected by the pre-inspection assembly, the pre-filled and sealed syringes are overturned by the overturning mechanism and conveyed to the quality inspection assembly to be subjected to secondary detection. According to the full-automatic lamp inspection machine for the pre-filled syringe, dead-corner-free comprehensive detection of the pre-filled syringe can be achieved, the integrity and reliability of detection are effectively improved, and the product quality is ensured.

Description

Technical Field

[0001] This invention belongs to the field of light inspection machine technology, and more specifically, relates to a fully automatic light inspection machine for pre-filled syringes. Background Technology

[0002] Pre-filled syringes are a novel pharmaceutical packaging system that pre-fills drugs into polymer or glass tubes under sterile conditions, combining the dual functions of drug storage and direct injection. They mainly consist of components such as a syringe barrel, piston, plunger, needle, and cap. Compared to traditional vials and ampoules, they offer significant advantages including ease of operation, precise dosage, low risk of contamination, and high patient compliance. They are widely used in medical settings such as chronic disease treatment, delivery of biological agents, vaccination, and surgical irrigation, becoming an important packaging form in the modern pharmaceutical field.

[0003] Existing pre-filled syringe inspection equipment primarily relies on machine vision technology for its detection functions. Current semi-automatic inspection machines typically use symmetrical conveyor belts to clamp the annular protrusion at the syringe's tail, forming a straight inspection section. Combined with illumination and observation devices on both sides, this allows for manual or semi-automatic inspection of visible foreign objects and surface defects. Existing fully automatic inspection machines integrate multi-station inspection modules, using industrial camera arrays to acquire multi-angle dynamic images of the syringe. Combined with grayscale analysis or deep learning algorithms, they identify issues such as bottle stains, sealing defects, and foreign matter in the liquid.

[0004] In existing light inspection machines, pre-filled syringes are often transported in a vertical or fixed posture during the inspection process. This fixed posture inspection mode makes it difficult for the upper and lower ends of the pre-filled syringes (such as the inside of the needle cap, the bottom of the plunger piston, etc.) to be fully covered by the inspection equipment, which easily leads to blind spots. It is impossible to achieve all-round inspection of the inner and outer surfaces, contents, and component connection parts of the pre-filled syringes without dead angles, which poses potential risks to product quality and safety. Summary of the Invention

[0005] The purpose of this application is to provide a fully automatic light inspection machine for pre-filled syringes, so as to solve the technical problem in the prior art that there are blind spots at the upper and lower ends when the pre-filled syringes are inspected in a fixed posture, making it impossible to achieve all-round inspection of the pre-filled syringes without dead angles.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: A fully automatic light inspection machine for pre-filled syringes is provided, comprising a machine body, and a bottle feeding assembly, a pre-inspection assembly, and a quality inspection assembly sequentially arranged on the machine body; the bottle feeding assembly is used to vertically convey the pre-filled syringes to the pre-inspection assembly and the quality inspection assembly; the pre-inspection assembly is used to inspect the accessories on the pre-filled syringes; the quality inspection assembly is used to inspect the bottle body of the pre-filled syringes; the fully automatic light inspection machine further includes: A flipping mechanism is disposed between the pre-inspection component and the quality inspection component, for receiving the pre-filled syringes that have been inspected by the pre-inspection component and transporting the pre-filled syringes to the quality inspection component; during the transport of the pre-filled syringes, the flipping mechanism can flip the pre-filled syringes 180° in the vertical direction. In this process, after the pre-filled syringe is inspected by the pre-inspection component, the pre-filled syringe is adapted to be flipped up and down by the flipping mechanism and transported to the quality inspection component for secondary inspection, so as to achieve inspection of the pre-filled syringe without blind spots.

[0007] In one possible implementation, the flipping mechanism includes: A first delivery rod is rotatably connected to the machine body in a horizontal direction. The outer peripheral wall of the first delivery rod has a first helical groove extending axially. The first helical groove is used to slide into contact with the outer wall of a pre-filled syringe in a vertical position. A first motor is driven to the first delivery rod to rotate it. A flip-up twist track is coaxially fixedly sleeved on the first conveying rod; along the axial direction of the first conveying rod, the flip-up twist track has two parallel spiral surfaces on both sides, the spiral surfaces are located on the upper side of the first conveying rod, and the spiral direction of the spiral surfaces is opposite to the spiral direction of the first spiral groove; When the first motor drives the first conveying rod to rotate, the first spiral groove is adapted to drive the pre-filled syringe in a vertical state to translate toward the flipping torsion track. When the upper end of the pre-filled syringe is in contact with the spiral surface, the upper end of the pre-filled syringe is adapted to slide along the spiral surface, and the lower end of the pre-filled syringe is adapted to slide along another spiral surface, so that the pre-filled syringe can be flipped from one side to the other around the outer circumference of the first conveying rod, achieving a 180° flip.

[0008] In one possible implementation, baffles are provided on both sides of the first conveyor rod along its radial direction. The baffles are slidably connected to the side of the pre-filled syringe facing away from the first conveyor rod, and the baffles are spaced apart from the first conveyor rod. The baffles have notches to avoid the flipping path. When the pre-filled syringe flips, the notches are adapted to avoid the path of the pre-filled syringe when it flips.

[0009] In one possible implementation, the bottle inlet assembly includes: A material tray, located on the machine body, is used to store multiple pre-filled syringes in a vertical position. A second conveying rod, rotatably connected to the machine body in a horizontal direction, is used to receive pre-filled syringes from the material tray; the outer peripheral wall of the second conveying rod has a second helical groove extending axially; the second helical groove is used to slide into contact with the pre-filled syringe in a vertical position; a second motor is driven to the second conveying rod to drive it to rotate; and The bottle inlet star wheel is rotatably connected to the machine body in a vertical direction. The outer circumference of the bottle inlet star wheel is provided with a plurality of spaced bottle inlet grooves. Each bottle inlet groove is used to receive the pre-filled syringe conveyed by the second conveying rod. The bottle inlet star wheel is driven by a third motor to drive the bottle inlet star wheel to rotate.

[0010] In one possible implementation, the pre-detection component includes: A pre-inspection star wheel is rotatably connected to the machine body in a vertical direction. The outer periphery of the pre-inspection star wheel is provided with a plurality of spaced pre-inspection grooves. Each pre-inspection groove is used to receive a pre-filled syringe conveyed by one of the bottle inlet grooves. The pre-inspection star wheel is driven by a fourth motor to drive the pre-inspection star wheel to rotate. A pre-inspection station component, mounted on the machine body, is used to inspect the needle cap and flange of the pre-filled syringe within each of the pre-inspection grooves; and Multiple channel star wheels are rotatably connected to the machine body in a vertical direction, and the multiple channel star wheels are spaced apart; each channel star wheel has multiple spaced channel grooves on its outer periphery, and each channel groove is used to connect with a pre-filled syringe to deliver the pre-filled syringe to different positions; After being inspected by the pre-inspection station components, defective pre-filled syringes are suitable for being transported to the collection container via the distribution star wheel, while defect-free pre-filled syringes are suitable for being transported to the flipping mechanism via the distribution star wheel.

[0011] In one possible implementation, the quality inspection component includes: A rotation inspection mechanism, mounted on the machine body, receives pre-filled syringes that have passed the pre-inspection component and been flipped by the flipping mechanism, and performs rotation inspection on the appearance and contents of the pre-filled syringes; and A leak detection mechanism, installed on the machine body, is capable of receiving pre-filled syringes that have passed the inspection by the leak detection mechanism, and is used to test the airtightness of the pre-filled syringes.

[0012] In one possible implementation, the rotary inspection mechanism includes: The main tower is rotatably connected to the machine body in a vertical direction, and the main tower is driven by a fifth motor to drive the main tower to rotate. Multiple spin components are arranged at intervals along the circumference of the main tower. The spin components are used to receive the pre-filled syringe after it has been flipped by the flipping mechanism, so as to drive the pre-filled syringe to rotate around its own axis. Multiple inspection station components, surrounding the outer perimeter of the main tower, are used to inspect the appearance and contents of the pre-filled syringes on each of the spin components; Multiple ejector stars are rotatably connected to the machine body in a vertical direction, and the multiple ejector stars are spaced apart; each ejector star has multiple spaced ejector grooves on its outer periphery, and each ejector groove is used to connect with a pre-filled syringe to deliver the pre-filled syringe to different positions; After being inspected by the inspection station components, defective pre-filled syringes are suitable for being transported to the collection container via the rejection star wheel, while defect-free pre-filled syringes are suitable for being transported to the leak detection mechanism via the rejection star wheel.

[0013] In one possible implementation, the spin member includes: A lower rotating seat is rotatably connected to the main tower and is driven by a sixth motor to rotate the lower rotating seat; the lower rotating seat is used to connect to one end of a pre-filled syringe; and An upper clamping seat is located above the lower rotating seat and is coaxially arranged with the lower rotating seat; the upper clamping seat is slidably connected to the main tower in the vertical direction, and a telescopic cylinder is provided between the upper clamping seat and the main tower. The power output end of the telescopic cylinder is rotatably connected to the upper clamping seat to drive the upper clamping seat to move toward or away from the lower rotating seat; the upper clamping seat is used to connect with the other end of the pre-filled syringe; When the pre-filled syringe is delivered between the lower rotating seat and the upper clamping seat, the telescopic cylinder is adapted to drive the upper clamping seat to move toward the lower rotating seat to clamp the pre-filled syringe; when the lower rotating seat rotates, it is adapted to drive the pre-filled syringe to rotate around its own axis.

[0014] In one possible implementation, the leak detection mechanism includes: The third conveying rod is rotatably connected to the machine body in the horizontal direction and is used to receive pre-filled syringes that have passed the inspection by the spiral inspection mechanism; the outer peripheral wall of the third conveying rod has a third spiral groove extending in the axial direction; the third spiral groove is used to slide into contact with the pre-filled syringe in a vertical position; the third conveying rod is driven by a seventh motor to drive the third conveying rod to rotate. A leak detection station component, mounted on the machine body, is used to detect the airtightness of the pre-filled syringe on the third delivery rod; and Multiple qualified material dispensing star wheels are rotatably connected to the machine body in a vertical direction, and the multiple qualified material dispensing star wheels are spaced apart; each qualified material dispensing star wheel has multiple spaced dispensing grooves on its outer periphery, and each dispensing groove is used to connect with a pre-filled syringe to deliver the pre-filled syringe to different positions; Among them, after being inspected by the leak detection station component, defective pre-filled syringes are suitable to be transported to the collection container through the qualified material distribution star wheel, and defect-free pre-filled syringes are suitable to be transported to the qualified product collection container through the qualified material distribution star wheel.

[0015] In one possible implementation, along the axial direction of the third conveying rod, the pitch of the third spiral groove first changes from dense to sparse, and then from sparse to dense, in order to increase the spacing between adjacent pre-filled syringes at the leak detection station component.

[0016] In this embodiment, the bottle inlet assembly vertically transports the pre-filled syringe to the pre-inspection assembly. The pre-inspection assembly first performs an initial inspection of the upper components and bottle body of the pre-filled syringe. After passing the inspection, the flipping mechanism receives the pre-filled syringe and, while transporting it to the quality inspection assembly, simultaneously flips the syringe 180° vertically, so that the bottom of the bottle, which was originally facing downwards, is now completely facing upwards. Finally, the flipped pre-filled syringe enters the quality inspection assembly, which performs a second high-precision inspection of the syringe's inner wall, bottom details, and the reverse assembly state of the components to ensure that all areas are covered.

[0017] The fully automatic light inspection machine for pre-filled syringes provided in this application embodiment, compared with the prior art, achieves comprehensive inspection of the pre-filled syringe bottle and accessories without blind spots by combining two inspections: pre-inspection and quality inspection, and a 180° flipping action achieved by the flipping mechanism. This effectively avoids the omission of defects caused by the limitation of the inspection angle. At the same time, the flipping mechanism integrates the conveying and flipping functions, eliminating the need for a separate flipping station. This optimizes the spatial layout of the equipment, improves the automation level and operating efficiency of the inspection process, reduces errors caused by manual intervention, and ensures the stability of the factory quality of pre-filled syringes. Attached Figure Description

[0018] 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A three-dimensional structural schematic diagram of a fully automatic light inspection machine for pre-filled syringes provided in an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows a partial structure of a fully automated light inspection machine for pre-filled syringes. Figure 1 ; Figure 3 for Figure 1 The diagram shows a partial structure of a fully automated light inspection machine for pre-filled syringes. Figure 2 ; Figure 4 for Figure 1 The diagram shows a partial structure of a fully automated light inspection machine for pre-filled syringes. Figure 3 ; Figure 5 This is a top view of the fully automatic light inspection machine for pre-filled syringes provided in an embodiment of the present invention; Figure 6 for Figure 5 The diagram shows a partial structure of a fully automated light inspection machine for pre-filled syringes. Figure 1 ; Figure 7 for Figure 5 The diagram shows a partial structure of a fully automated light inspection machine for pre-filled syringes. Figure 2 ; Figure 8 for Figure 5 The diagram shows a partial structure of a fully automated light inspection machine for pre-filled syringes. Figure 3 ; The following are the labeling elements in the figure: 1. Machine body; 2. Tilting mechanism; 21. First conveyor rod; 211. First spiral groove; 22. Tilting track; 221. Spiral surface; 23. Baffle plate; 3. Bottle feeding assembly; 31. Material tray; 32. Second conveyor rod; 321. Second spiral groove; 33. Bottle feeding star wheel; 331. Bottle feeding groove; 4. Pre-inspection assembly; 41. Pre-inspection star wheel; 411. Pre-inspection groove; 42. Pre-inspection station component; 43. Dividing star wheel; 431. Dividing groove; 5. Main tower; 6. Spinning component; 61. Lower rotating seat; 62. Upper clamping seat; 63. Telescopic cylinder; 7. Inspection station component; 8. Rejecting star wheel; 81. Rejecting groove; 9. Leak detection mechanism; 91. Third conveyor rod; 911. Third spiral groove; 92. Leak detection station component; 93. Qualified distributing star wheel; 931. Distributing groove. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the present application 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 this application and are not intended to limit this application.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] Please refer to the following: Figures 1 to 8The fully automatic light inspection machine for pre-filled syringes provided by the present invention will now be described. The fully automatic light inspection machine for pre-filled syringes includes a machine body 1, a pre-inspection component 4 and a quality inspection component for inspecting the accessories and bottle body of the pre-filled syringe, and a bottle feeding component 3 for vertically conveying the pre-filled syringe to the pre-inspection component 4; the fully automatic light inspection machine also includes a flipping mechanism 2.

[0025] The flipping mechanism 2 is located between the pre-inspection component 4 and the quality inspection component. It is used to receive the pre-filled syringes that have been inspected by the pre-inspection component 4 and transport the pre-filled syringes to the quality inspection component. During the transport of the pre-filled syringes, the flipping mechanism 2 can flip the pre-filled syringes 180° in the vertical direction.

[0026] In this process, after the pre-filled syringe is inspected by the pre-inspection component 4, the pre-filled syringe is adapted to be flipped up and down by the flipping mechanism 2 and transported to the quality inspection component for secondary inspection, so as to achieve inspection of the pre-filled syringe without blind spots.

[0027] Inspection steps: The bottle feeding assembly 3 vertically transports the pre-filled syringe to the pre-inspection assembly 4. The pre-inspection assembly 4 performs an initial inspection of the pre-filled syringe's accessories and bottle body. After the inspection is completed, the pre-filled syringe is transported to the flipping mechanism 2. During the transport process, the flipping mechanism 2 flips the pre-filled syringe 180° in the vertical direction and then transports it to the quality inspection assembly for a second inspection, thereby achieving a thorough inspection of the pre-filled syringe.

[0028] By conducting two inspections from different angles, a comprehensive and thorough inspection of the pre-filled syringe is achieved, effectively improving the coverage and accuracy of the inspection. The fully automated delivery and inspection process reduces manual intervention, improves overall inspection efficiency, and reduces the risk of errors caused by manual operation.

[0029] In this embodiment, the bottle inlet assembly 3 vertically transports the pre-filled syringe to the pre-inspection assembly 4. The pre-inspection assembly 4 first performs an initial inspection of the upper components and bottle body of the pre-filled syringe. After passing the inspection, the flipping mechanism 2 receives the pre-filled syringe and, while transporting it to the quality inspection assembly, simultaneously flips the syringe 180° vertically, so that the bottom of the bottle, which was originally facing down, is now completely facing up. Finally, the flipped pre-filled syringe enters the quality inspection assembly, which performs a second high-precision inspection of the syringe's inner wall, bottom details, and the reverse assembly state of the components to ensure that all areas are covered.

[0030] The fully automatic light inspection machine for pre-filled syringes provided in this application embodiment, compared with the prior art, achieves comprehensive inspection of the pre-filled syringe bottle body and accessories without blind spots by combining two inspections: pre-inspection and quality inspection, combined with the 180° flipping action achieved by the flipping mechanism 2. This effectively avoids the omission of defects caused by the limitation of the inspection angle. At the same time, the flipping mechanism 2 integrates the conveying and flipping functions, eliminating the need for a separate flipping station. This optimizes the spatial layout of the equipment, improves the automation level and operating efficiency of the inspection process, reduces errors caused by manual intervention, and ensures the stability of the factory quality of pre-filled syringes.

[0031] Further, please refer to Figures 1 to 8 As a specific embodiment of the fully automatic light inspection machine for pre-filled syringes provided in this application, the flipping mechanism 2 includes a first conveying rod 21 and a flipping torsion track 22.

[0032] The first conveying rod 21 is rotatably connected to the body 1 in the horizontal direction. The outer peripheral wall of the first conveying rod 21 has a first spiral groove 211 extending in the axial direction. The first spiral groove 211 is used to slide into contact with the outer wall of the pre-filled syringe in a vertical position. The first conveying rod 21 is driven by a first motor to drive the first conveying rod 21 to rotate.

[0033] The flipping twist track 22 is coaxially fixedly sleeved on the first conveying rod 21; along the axial direction of the first conveying rod 21, the flipping twist track 22 has two parallel spiral surfaces 221 on both sides, the spiral surfaces 221 are located on the upper side of the first conveying rod 21, and the spiral direction of the spiral surfaces 221 is opposite to the spiral direction of the first spiral groove 211.

[0034] When the first motor drives the first conveying rod 21 to rotate, the first spiral groove 211 is adapted to drive the pre-filled syringe in the vertical state to translate towards the flipping twist 22. When the upper end of the pre-filled syringe is in contact with the spiral surface 221, the upper end of the pre-filled syringe is adapted to slide along the spiral surface 221, and the lower end of the pre-filled syringe is adapted to slide along another spiral surface 221, so that the pre-filled syringe can be flipped from one side to the other around the outer circumference of the first conveying rod 21, achieving a 180° flip.

[0035] The flipping steps of the pre-filled syringe: The first motor drives the first conveying rod 21 to rotate. The first spiral groove 211 on the outer periphery of the first conveying rod 21 drives the pre-filled syringe, which is in a vertical state, to move towards the flipping twist track 22. When the upper end of the pre-filled syringe is in contact with one spiral surface 221 of the flipping twist track 22 and the lower end is in contact with the other spiral surface 221, as the first conveying rod 21 continues to rotate, the upper and lower ends of the pre-filled syringe slide along the corresponding spiral surfaces 221, and then flip around the outer periphery of the first conveying rod 21 from one side to the other side, completing a 180° flip.

[0036] The helical angle of the spiral surface 221 of the flip-up twist 22 can be adjusted according to the specifications of the pre-filled syringe, or an adjustable pitch first spiral groove 211 can be designed to adapt to different delivery speed requirements. A wear-resistant coating can also be added to the surface of the flip-up twist 22 to extend its service life.

[0037] By adopting the above technical solution, an automated flipping mechanism is achieved by using a spiral groove and a flipping torsion track 22. The overall structure is compact and occupies little space. During the flipping process, the pre-filled syringe slides smoothly along the spiral surface 221, avoiding damage to the product caused by hard collisions. At the same time, it ensures the consistency and stability of the flipping action and effectively improves the efficiency of product posture adjustment before testing.

[0038] Further, please refer to Figures 1 to 8 As a specific embodiment of the fully automatic light inspection machine for pre-filled syringes provided in this application, baffle plates 23 are provided on both sides of the first conveyor rod 21 along the radial direction of the first conveyor rod 21. The baffle plates 23 are slidably connected to the side of the pre-filled syringe facing away from the first conveyor rod 21, and the baffle plates 23 are spaced apart from the first conveyor rod 21. The baffle plates 23 have notches to avoid the flipping twist track 22. When the pre-filled syringe flips, the notches are suitable for avoiding the path of the pre-filled syringe when it flips.

[0039] When the first conveying rod 21 rotates and drives the pre-filled syringe to be conveyed, the baffles 23 on both sides slide into contact with the side of the pre-filled syringe facing away from the first conveying rod 21, limiting the deviation of the pre-filled syringe. When the pre-filled syringe enters the flipping twisting track 22 area to flip, the notch on the baffle 23 will avoid the flipping path of the pre-filled syringe, preventing the baffle 23 from colliding with the pre-filled syringe during the flipping process.

[0040] The baffle plate 23 can be designed with an adjustable spacing to accommodate pre-filled syringes of different diameters. Alternatively, a guide ramp can be added at the notch to help the pre-filled syringe complete the flipping action smoothly.

[0041] By adopting the above technical solution, the baffle plate 23 effectively ensures the stability of the pre-filled syringe's posture during the delivery process, preventing the product from falling or shifting. The notch design eliminates the risk of structural interference during the flipping process, further improving the reliability and smoothness of equipment operation and reducing product damage and equipment failure caused by collisions.

[0042] Further, please refer to Figures 1 to 8 As a specific embodiment of the fully automatic light inspection machine for pre-filled syringes provided in this application, the bottle feeding assembly 3 includes a material tray 31, a second conveying rod 32, and a bottle feeding star wheel 33.

[0043] The material tray 31 is set on the machine body 1, and its interior is used to store multiple pre-filled syringes in a vertical position; The second conveying rod 32 is rotatably connected to the machine body 1 in the horizontal direction and is used to receive the pre-filled syringe in the material tray 31. The outer peripheral wall of the second conveying rod 32 has a second spiral groove 321 extending in the axial direction. The second spiral groove 321 is used to slide into contact with the pre-filled syringe in the vertical position. The second conveying rod 32 is driven by a second motor to drive the second conveying rod 32 to rotate.

[0044] The bottle inlet star wheel 33 is rotatably connected to the machine body 1 in the vertical direction. The outer periphery of the bottle inlet star wheel 33 is provided with multiple spaced bottle inlet grooves 331. Each bottle inlet groove 331 is used to receive the pre-filled syringe conveyed by the second conveying rod 32. The bottle inlet star wheel 33 is driven by a third motor to drive the bottle inlet star wheel 33 to rotate.

[0045] The material tray 31 stores pre-filled syringes in a vertical position. A second motor drives a second conveyor rod 32 to rotate. The second spiral groove 321 on the outer periphery of the second conveyor rod 32 moves the pre-filled syringes in the material tray 31 axially. The bottle inlet star wheel 33 rotates under the drive of a third motor. Its outer periphery's bottle inlet groove 331 receives the pre-filled syringes conveyed by the second conveyor rod 32 one by one and conveys them to the pre-inspection assembly 4. The material tray 31 can be replaced with a vibrating material tray 31 to improve the continuity and speed of feeding.

[0046] By adopting the above technical solution, automated continuous feeding of pre-filled syringes is realized. The cooperation between the second spiral groove 321 and the bottle inlet star wheel 33 ensures the orderliness and stability of product conveying, avoids product accumulation or jamming, provides a stable supply guarantee for subsequent testing processes, and effectively improves the overall operating efficiency of the equipment.

[0047] Further, please refer to Figures 1 to 8 As a specific embodiment of the fully automatic light inspection machine for pre-filled syringes provided in this application, the pre-inspection component 4 includes a pre-inspection star wheel 41, a pre-inspection station component 42, and multiple branch star wheels 43.

[0048] The pre-inspection star wheel 41 is rotatably connected to the machine body 1 in the vertical direction. The outer periphery of the pre-inspection star wheel 41 is provided with a plurality of pre-inspection grooves 411 spaced apart. Each pre-inspection groove 411 is used to receive a pre-filled syringe conveyed by one of the bottle inlet grooves 331. The pre-inspection star wheel 41 is driven by a fourth motor to drive the pre-inspection star wheel 41 to rotate.

[0049] The pre-inspection station component 42 is installed on the machine body 1 and is used to inspect the needle cap and flange of the pre-filled syringe in each pre-inspection groove 411.

[0050] Multiple channel star wheels 43 are rotatably connected to the machine body 1 in a vertical direction, and the multiple channel star wheels 43 are spaced apart; each channel star wheel 43 has multiple spaced channel grooves 431 on its outer periphery, and each channel groove 431 is used to connect with a pre-filled syringe to deliver the pre-filled syringe to different positions.

[0051] Among them, after being inspected by the pre-inspection station component 42, defective pre-filled syringes are suitable to be transported to the collection container through the channel star wheel 43, and defect-free pre-filled syringes are suitable to be transported to the flipping mechanism 2 through the channel star wheel 43.

[0052] The pre-inspection star wheel 41 rotates under the drive of the fourth motor. The pre-inspection groove 411 on its outer periphery receives the pre-filled syringes conveyed by the bottle-infeed star wheel 33. When the pre-filled syringes pass through the pre-inspection station component 42, the pre-inspection station component 42 inspects the needle cap and flange of the pre-filled syringes. After the inspection is completed, multiple branch star wheels 43 convey the defective pre-filled syringes to the collection container, while the defect-free pre-filled syringes are conveyed to the flipping mechanism 2.

[0053] By adopting the above technical solution, defective products such as needle caps and flanges can be screened out in advance through the pre-inspection stage, reducing the unnecessary load of subsequent inspection processes. The classification and collection function of the star wheel 43 facilitates subsequent defect analysis and processing, while further improving the accuracy and efficiency of the overall inspection process.

[0054] Further, please refer to Figures 1 to 8 As a specific embodiment of the fully automatic light inspection machine for pre-filled syringes provided in this application, the quality inspection component includes a rotary inspection mechanism and a leak detection mechanism 9.

[0055] The rotary inspection mechanism is installed on the machine body 1. It can receive the pre-filled syringes that have passed the inspection by the pre-inspection component 4 and have been flipped by the flipping mechanism 2. It is used to perform rotary inspection on the appearance and contents of the pre-filled syringes.

[0056] The leak detection mechanism 9 is installed on the body 1. It can receive pre-filled syringes that have passed the inspection by the leak detection mechanism and is used to test the airtightness of the pre-filled syringes.

[0057] By adopting the above technical solution, the appearance, contents, and airtightness of the pre-filled syringe are fully covered through the secondary inspection of the rotary inspection mechanism and the leak detection mechanism 9. This ensures that the quality of the products leaving the factory meets the standards, reduces the risk of defective products flowing out, and the automated inspection process further improves inspection efficiency and reduces labor costs.

[0058] Further, please refer to Figures 1 to 8As a specific embodiment of the fully automatic lamp inspection machine for pre-filled syringes provided in this application, the rotary inspection mechanism includes a main tower 5, multiple spinning components 6, multiple inspection station components 7, and multiple rejecting star wheels 8.

[0059] The main tower 5 is rotatably connected to the body 1 in the vertical direction, and the main tower 5 is driven by a fifth motor to rotate.

[0060] Multiple spin members 6 are arranged at intervals along the circumference of the main tower 5. The spin members 6 are used to receive the pre-filled syringe after it has been flipped by the flipping mechanism 2, so as to drive the pre-filled syringe to rotate around its own axis.

[0061] Multiple inspection station components 7 surround the outer perimeter of the main tower 5, and are used to inspect the appearance and contents of the pre-filled syringes on each spin component 6.

[0062] Multiple ejector wheels 8 are vertically rotatably connected to the machine body 1, and the multiple ejector wheels 8 are spaced apart; each ejector wheel 8 has multiple spaced ejector grooves 81 on its outer periphery, and each ejector groove 81 is used to connect with a pre-filled syringe to deliver the pre-filled syringe to different positions.

[0063] Among them, after being inspected by the inspection station component 7, the defective pre-filled syringes are suitable to be transported to the collection container through the material removal star wheel 8, and the defect-free pre-filled syringes are suitable to be transported to the leak detection mechanism 9 through the material removal star wheel 8.

[0064] The fifth motor drives the main tower 5 to rotate. Multiple spinning components 6 on the main tower 5 receive the pre-filled syringes after they have been flipped by the flipping mechanism 2. The spinning components 6 drive the pre-filled syringes to rotate around their own axis. Multiple inspection station components 7 around the outer periphery of the main tower 5 inspect the appearance and contents of the rotating pre-filled syringes. After the inspection is completed, multiple rejection star wheels 8 transport the defective pre-filled syringes to the collection container, while the defect-free pre-filled syringes are transported to the leak detection mechanism 9.

[0065] A speed adjustment function can be added to the spin component 6 to adapt to the testing requirements of different types of pre-filled syringes. A visual recognition module can also be set in the testing station component 7 to improve the accuracy of defect identification.

[0066] By adopting the above technical solution, the spinning component 6 drives the pre-filled syringe to rotate, and together with the multi-station detection component, it realizes the appearance and contents detection without blind spots. The setting of the rejection star wheel 8 realizes the timely sorting of defective products, effectively ensuring the comprehensiveness and accuracy of the detection. At the same time, the rotating structure of the main tower 5 improves the continuity and efficiency of the detection process.

[0067] Further, please refer to Figures 1 to 8As a specific embodiment of the fully automatic light inspection machine for pre-filled syringes provided in this application, the spin member 6 includes a lower rotating seat 61 and an upper pressing seat 62.

[0068] The lower rotating seat 61 is rotatably connected to the main tower 5, and its transmission is connected to a sixth motor to drive the lower rotating seat 61 to rotate; the lower rotating seat 61 is used to connect to one end of the pre-filled syringe.

[0069] The upper clamping seat 62 is located on the upper side of the lower rotating seat 61 and is coaxially arranged with the lower rotating seat 61. The upper clamping seat 62 is slidably connected to the main tower 5 in the vertical direction, and a telescopic cylinder 63 is provided between the upper clamping seat 62 and the main tower 5. The power output end of the telescopic cylinder 63 is rotatably connected to the upper clamping seat 62 to drive the upper clamping seat 62 to move toward or away from the lower rotating seat 61. The upper clamping seat 62 is used to connect with the other end of the pre-filled syringe.

[0070] When the pre-filled syringe is delivered between the lower rotating seat 61 and the upper clamping seat 62, the telescopic cylinder 63 is adapted to drive the upper clamping seat 62 to move toward the lower rotating seat 61 to clamp the pre-filled syringe; when the lower rotating seat 61 rotates, it is adapted to drive the pre-filled syringe to rotate around its own axis.

[0071] When the pre-filled syringe is delivered between the lower rotating seat 61 and the upper clamping seat 62, the telescopic cylinder 63 drives the upper clamping seat 62 to move downward, clamping the pre-filled syringe between the lower rotating seat 61 and the upper clamping seat 62. The sixth motor drives the lower rotating seat 61 to rotate, thereby driving the pre-filled syringe to rotate around its own axis.

[0072] The telescopic cylinder 63 can be replaced by a convex-slider mechanism. A convex block is fixedly connected to the body 1 at the top of the main tower 5. The slider is slidably connected to the main tower 5 in the vertical direction. The bottom of the slider is rotatably connected to the upper pressing seat 62. A return spring is provided between the slider and the main tower 5. When the main tower 5 rotates, the slider is adapted to engage with the convex block, and then the slider moves downward so that the upper pressing seat 62 moves towards the lower rotating seat 61. When the slider leaves the convex block, the slider is adapted to move upward under the action of the return spring so that the upper pressing seat 62 moves away from the lower rotating seat 61.

[0073] An elastic buffer pad can be added to the contact surface of the upper clamping seat 62 to prevent damage to the pre-filled syringe during clamping. Alternatively, the lower rotating seat 61 can be designed as a quick-change structure to accommodate pre-filled syringes of different specifications.

[0074] By adopting the above technical solution, the upper clamping seat 62 driven by the telescopic cylinder 63 can achieve stable clamping of pre-filled syringes of different lengths. The structure of the lower rotating seat 61 driving the product to rotate ensures rotational stability during testing. The overall structural design takes into account both clamping force and product protection, which not only ensures the smooth progress of testing, but also reduces the product damage rate and improves the versatility and reliability of the equipment.

[0075] Further, please refer to Figures 1 to 8 As a specific embodiment of the fully automatic lamp inspection machine for pre-filled syringes provided in this application, the leak detection mechanism 9 includes a third conveying rod 91, a leak detection station component 92, and multiple qualified material distribution star wheels 93.

[0076] The third conveying rod 91 is rotatably connected to the machine body 1 in the horizontal direction and is used to receive pre-filled syringes that have passed the inspection by the rotary inspection mechanism; the outer peripheral wall of the third conveying rod 91 has a third spiral groove 911 extending in the axial direction; the third spiral groove 911 is used to slide into contact with the pre-filled syringe in the vertical position; the third conveying rod 91 is driven by a seventh motor to drive the third conveying rod 91 to rotate.

[0077] The leak detection station component 92 is installed on the machine body 1 and is used to test the airtightness of the pre-filled syringe on the third conveying rod 91.

[0078] Multiple qualified material dispensing star wheels 93 are vertically rotatably connected to the machine body 1, and the multiple qualified material dispensing star wheels 93 are spaced apart; each qualified material dispensing star wheel 93 has multiple spaced dispensing grooves 931 on its outer periphery, and each dispensing groove 931 is used to connect with a pre-filled syringe to deliver the pre-filled syringe to different positions.

[0079] Among them, after being inspected by the leak detection station component 92, the defective pre-filled syringes are suitable to be transported to the collection container through the qualified material distribution star wheel 93, and the undefective pre-filled syringes are suitable to be transported to the qualified product collection container through the qualified material distribution star wheel 93.

[0080] The third conveying rod 91 rotates under the drive of the seventh motor. Its outer third spiral groove 911 receives the pre-filled syringes that have passed the inspection by the spiral inspection mechanism and conveys them axially. When the pre-filled syringes pass the leak detection station component 92, the leak detection station component 92 tests their airtightness. After the test is completed, multiple qualified material distribution star wheels 93 convey the defective pre-filled syringes to the collection container, while the undefective pre-filled syringes are conveyed to the qualified product collection container.

[0081] A heating device can be installed on the third conveyor rod 91 to preheat the pre-filled syringe before leak detection, thereby improving the accuracy of airtightness testing. Alternatively, multiple detection probes can be installed in the leak detection station component 92 to enable simultaneous testing of multiple products.

[0082] By adopting the above technical solutions, the conveying structure of the third spiral groove 911 ensures the orderly conveying of the pre-filled syringes, the setting of the leak detection station component 92 realizes the automated detection of airtightness, and the qualified material distribution star wheel 93 completes the final sorting of qualified and defective products, effectively ensuring the sealing quality of the products leaving the factory. At the same time, the automated process further improves the overall production efficiency.

[0083] Further, please refer to Figures 1 to 8 As a specific embodiment of the fully automatic light inspection machine for pre-filled syringes provided in this application, along the axial direction of the third conveying rod 91, the pitch of the third spiral groove 911 first changes from dense to sparse, and then from sparse to dense, so as to increase the spacing between multiple pre-filled syringes located at the leak detection station component 92.

[0084] When the third conveying rod 91 rotates, the third spiral groove 911 on its outer periphery drives the pre-filled syringe to move axially. Before the pre-filled syringe enters the area of ​​the leak detection station component 92, the pitch of the third spiral groove 911 changes from dense to sparse, increasing the distance between adjacent pre-filled syringes in this area. After the pre-filled syringe leaves the area of ​​the leak detection station component 92, the pitch of the third spiral groove 911 changes from sparse to dense again, restoring the normal conveying density.

[0085] The pitch variation range and variation range of the third spiral groove 911 can be adjusted according to the detection time requirements of the leak detection station. Alternatively, the third conveying rod 91 can be designed as a segmented structure to facilitate the replacement and maintenance of different pitch segments.

[0086] By adopting the above technical solution, the pitch variation design provides sufficient testing space for the pre-filled syringe in the leak detection station area, ensuring that each product can be fully tested and avoiding detection omissions caused by excessively small product spacing. At the same time, the pitch returns to normal after leaving the testing area, ensuring that the overall conveying efficiency is not affected, and effectively balancing the relationship between detection accuracy and conveying efficiency.

[0087] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fully automatic light inspection machine for pre-filled syringes, characterized in that, It includes a machine body, and a bottle inlet assembly, a pre-inspection assembly, and a quality inspection assembly sequentially arranged on the machine body; the bottle inlet assembly is used to vertically transport the pre-filled syringe to the pre-inspection assembly and the quality inspection assembly, the pre-inspection assembly is used to inspect the accessories on the pre-filled syringe, and the quality inspection assembly is used to inspect the bottle body of the pre-filled syringe; The fully automatic light inspection machine also includes: A flipping mechanism is disposed between the pre-inspection component and the quality inspection component, for receiving the pre-filled syringes that have been inspected by the pre-inspection component and transporting the pre-filled syringes to the quality inspection component; during the transport of the pre-filled syringes, the flipping mechanism can flip the pre-filled syringes 180° in the vertical direction. In this process, after the pre-filled syringe is inspected by the pre-inspection component, the pre-filled syringe is adapted to be flipped up and down by the flipping mechanism and transported to the quality inspection component for secondary inspection, so as to achieve inspection of the pre-filled syringe without blind spots.

2. The fully automatic light inspection machine for pre-filled syringes as described in claim 1, characterized in that, The flipping mechanism includes: A first delivery rod is rotatably connected to the machine body in a horizontal direction. The outer peripheral wall of the first delivery rod has a first helical groove extending axially. The first helical groove is used to slide into contact with the outer wall of a pre-filled syringe in a vertical position. A first motor is driven to the first delivery rod to rotate it. A flip-up twist track is coaxially fixedly sleeved on the first conveying rod; along the axial direction of the first conveying rod, the flip-up twist track has two parallel spiral surfaces on both sides, the spiral surfaces are located on the upper side of the first conveying rod, and the spiral direction of the spiral surfaces is opposite to the spiral direction of the first spiral groove; When the first motor drives the first conveying rod to rotate, the first spiral groove is adapted to drive the pre-filled syringe in a vertical state to translate toward the flipping torsion track. When the upper end of the pre-filled syringe is in contact with the spiral surface, the upper end of the pre-filled syringe is adapted to slide along the spiral surface, and the lower end of the pre-filled syringe is adapted to slide along another spiral surface, so that the pre-filled syringe can be flipped from one side to the other around the outer circumference of the first conveying rod, achieving a 180° flip.

3. The fully automatic light inspection machine for pre-filled syringes as described in claim 2, characterized in that, Along the radial direction of the first conveying rod, baffles are provided on both sides of the first conveying rod. The baffles are slidably connected to the side of the pre-filled syringe facing away from the first conveying rod, and the baffles are spaced apart from the first conveying rod. The baffles have notches to avoid the flipping torsion track. When the pre-filled syringe flips, the notches are adapted to avoid the path of the pre-filled syringe when it flips.

4. The fully automatic light inspection machine for pre-filled syringes as described in claim 1, characterized in that, The bottle inlet assembly includes: A material tray, located on the machine body, is used to store multiple pre-filled syringes in a vertical position. A second conveying rod, rotatably connected to the machine body in a horizontal direction, is used to receive pre-filled syringes from the material tray; the outer peripheral wall of the second conveying rod has a second helical groove extending axially; the second helical groove is used to slide into contact with the pre-filled syringe in a vertical position; a second motor is driven to the second conveying rod to drive it to rotate; and The bottle inlet star wheel is rotatably connected to the machine body in a vertical direction. The outer circumference of the bottle inlet star wheel is provided with a plurality of spaced bottle inlet grooves. Each bottle inlet groove is used to receive the pre-filled syringe conveyed by the second conveying rod. The bottle inlet star wheel is driven by a third motor to drive the bottle inlet star wheel to rotate.

5. The fully automatic light inspection machine for pre-filled syringes as described in claim 4, characterized in that, The pre-detection component includes: A pre-inspection star wheel is rotatably connected to the machine body in a vertical direction. The outer periphery of the pre-inspection star wheel is provided with a plurality of spaced pre-inspection grooves. Each pre-inspection groove is used to receive a pre-filled syringe conveyed by one of the bottle inlet grooves. The pre-inspection star wheel is driven by a fourth motor to drive the pre-inspection star wheel to rotate. A pre-inspection station component, mounted on the machine body, is used to inspect the needle cap and flange of the pre-filled syringe within each of the pre-inspection grooves; and Multiple channel star wheels are rotatably connected to the machine body in a vertical direction, and the multiple channel star wheels are spaced apart; each channel star wheel has multiple spaced channel grooves on its outer periphery, and each channel groove is used to connect with a pre-filled syringe to deliver the pre-filled syringe to different positions; After being inspected by the pre-inspection station components, defective pre-filled syringes are suitable for being transported to the collection container via the distribution star wheel, while defect-free pre-filled syringes are suitable for being transported to the flipping mechanism via the distribution star wheel.

6. The fully automatic light inspection machine for pre-filled syringes as described in claim 1, characterized in that, The quality inspection components include: A rotation inspection mechanism, mounted on the machine body, receives pre-filled syringes that have passed the pre-inspection component and been flipped by the flipping mechanism, and performs rotation inspection on the appearance and contents of the pre-filled syringes; and A leak detection mechanism, installed on the machine body, is capable of receiving pre-filled syringes that have passed the inspection by the leak detection mechanism, and is used to test the airtightness of the pre-filled syringes.

7. The fully automatic light inspection machine for pre-filled syringes as described in claim 6, characterized in that, The inspection mechanism includes: The main tower is rotatably connected to the machine body in a vertical direction, and the main tower is driven by a fifth motor to drive the main tower to rotate. Multiple spin components are arranged at intervals along the circumference of the main tower. The spin components are used to receive the pre-filled syringe after it has been flipped by the flipping mechanism, so as to drive the pre-filled syringe to rotate around its own axis. Multiple inspection station components, surrounding the outer perimeter of the main tower, are used to inspect the appearance and contents of the pre-filled syringes on each of the spin components; Multiple ejector stars are rotatably connected to the machine body in a vertical direction, and the multiple ejector stars are spaced apart; each ejector star has multiple spaced ejector grooves on its outer periphery, and each ejector groove is used to connect with a pre-filled syringe to deliver the pre-filled syringe to different positions; After being inspected by the inspection station components, defective pre-filled syringes are suitable for being transported to the collection container via the rejection star wheel, while defect-free pre-filled syringes are suitable for being transported to the leak detection mechanism via the rejection star wheel.

8. The fully automatic light inspection machine for pre-filled syringes as described in claim 7, characterized in that, The spin component includes: A lower rotating seat is rotatably connected to the main tower and is driven by a sixth motor to rotate the lower rotating seat; the lower rotating seat is used to connect to one end of a pre-filled syringe; and An upper clamping seat is located above the lower rotating seat and is coaxially arranged with the lower rotating seat; the upper clamping seat is slidably connected to the main tower in the vertical direction, and a telescopic cylinder is provided between the upper clamping seat and the main tower. The power output end of the telescopic cylinder is rotatably connected to the upper clamping seat to drive the upper clamping seat to move toward or away from the lower rotating seat; the upper clamping seat is used to connect with the other end of the pre-filled syringe; When the pre-filled syringe is delivered between the lower rotating seat and the upper clamping seat, the telescopic cylinder is adapted to drive the upper clamping seat to move toward the lower rotating seat to clamp the pre-filled syringe; when the lower rotating seat rotates, it is adapted to drive the pre-filled syringe to rotate around its own axis.

9. The fully automatic light inspection machine for pre-filled syringes as described in claim 6, characterized in that, The leak detection mechanism includes: The third conveying rod is rotatably connected to the machine body in the horizontal direction and is used to receive pre-filled syringes that have passed the inspection by the spiral inspection mechanism; the outer peripheral wall of the third conveying rod has a third spiral groove extending in the axial direction; the third spiral groove is used to slide into contact with the pre-filled syringe in a vertical position; the third conveying rod is driven by a seventh motor to drive the third conveying rod to rotate. A leak detection station component, mounted on the machine body, is used to detect the airtightness of the pre-filled syringe on the third delivery rod; and Multiple qualified material dispensing star wheels are rotatably connected to the machine body in a vertical direction, and the multiple qualified material dispensing star wheels are spaced apart; each qualified material dispensing star wheel has multiple spaced dispensing grooves on its outer periphery, and each dispensing groove is used to connect with a pre-filled syringe to deliver the pre-filled syringe to different positions; Among them, after being inspected by the leak detection station component, defective pre-filled syringes are suitable to be transported to the collection container through the qualified material distribution star wheel, and defect-free pre-filled syringes are suitable to be transported to the qualified product collection container through the qualified material distribution star wheel.

10. The fully automatic light inspection machine for pre-filled syringes as described in claim 9, characterized in that, Along the axial direction of the third conveying rod, the pitch of the third spiral groove first changes from dense to sparse, and then from sparse to dense, so as to increase the spacing between adjacent pre-filled syringes at the leak detection station component.

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