A stable pharmaceutical glass lamp inspection and conveying device

Abstract

This utility model discloses a stable pharmaceutical glass inspection conveying device, including a conveying tube for placing ampoules. A shaking structure is installed inside the conveying tube to move the placed ampoule up and down. A limiting structure is provided at the top of the conveying tube to limit the top of the shaking ampoule. A through-slot is provided on the side wall of the conveying tube for light to pass through and project. The shaking structure includes a base plate and a driving structure for smoothly moving the base plate up and down. This utility model, by setting up a base plate driving structure, a pulse jet nozzle, and a limiting plate, enables the ampoule to move up and down controllably at the inspection position, forcing turbulence in the liquid inside the ampoule and causing impurities settled at the bottom of the ampoule to suspend. Combined with the light-transmitting design of the through-slot on the side wall of the conveying tube, the visual inspection equipment can capture dynamic images of suspended impurities, improving the accuracy of defect identification and the stability of inspection. By adding a base plate, the risk of the ampoule breaking due to accidental drop is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical glass production technology, specifically a stable pharmaceutical glass inspection and conveying device. Background Technology

[0002] Visual inspection is an essential safety barrier for pharmaceutical glass containers before they leave the factory and after the medicine is filled. Its purpose is to detect any visible defects that may affect the integrity of the container, introduce insoluble particles, or cause drug contamination, ensuring that the medicine that finally reaches the patient is contained in a safe, intact, and clean glass container, thereby guaranteeing medication safety and efficacy.

[0003] Currently, automated light inspection of pharmaceutical glass uses high-speed cameras and image processing systems. Containers are clamped and rotated on the production line by rotating rollers at both ends. High-speed cameras capture images from multiple angles, and complex algorithms analyze the images to identify various defects, such as changes in size, shape, location, and transparency.

[0004] A search revealed a glass bottle inspection line conveying device disclosed in patent application publication number CN214651119U, which includes a vertically arranged conveying pipe with a bottle inlet at the upper end and a bottle outlet at the lower end. The conveying pipe is hollow, forming a conveying cavity that allows glass bottles to fall sequentially, and several inspection holes are provided along the side wall of the conveying pipe.

[0005] Although this conveying device does not require other driving equipment to assist in the movement of the bottle and can fully expose the bottom of the bottle for imaging equipment to capture the bottle, the movement of the bottle and the liquid inside the bottle are synchronized during the descent. When impurities settle at the bottom of the bottle, they may be difficult to identify due to the high descent speed, affecting the stability of the detection. Furthermore, relying solely on pneumatic support for the glass bottle is not stable enough and is highly dependent on the performance of the pulse jet, which may pose a risk of the pharmaceutical glass bottle falling and breaking. Utility Model Content

[0006] The purpose of this invention is to provide a stable pharmaceutical glass inspection conveying device. By setting a base plate and a drive structure inside the conveying pipe, the ampoules that fall onto the base plate after being buffered can shake up and down, causing impurities at the bottom of the ampoules to float up and be easily identified by visual inspection equipment. At the same time, the base plate provides support when the glass ampoules fall accidentally, improving the overall stability of the device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a stable pharmaceutical glass inspection conveying device, comprising a conveying tube for placing ampoules, wherein a shaking structure is installed inside the conveying tube to shake the placed ampoule up and down, a limiting structure is provided at the top of the conveying tube to limit the top of the shaking ampoule, and a through groove is provided on the side wall of the conveying tube for light to pass through and project.

[0008] The shaking structure includes a base plate and a driving structure for the base plate to move smoothly up and down. The limiting structure includes a limiting plate and a mounting plate for providing a mounting position for the limiting plate. An elastic component for the limiting rod to slide up and down is installed at the bottom of the mounting plate. A limiting hole for the top of the ampoule to be inserted is opened in the middle of the limiting plate.

[0009] Preferably, the driving structure includes a pulse jet, and two sets of pulse jets are provided. The two sets of pulse jets are symmetrically fixed on the upper and lower surfaces of the base plate, and the side wall of the conveying pipe is equipped with a guide structure that enables the base plate to move stably.

[0010] Preferably, the guide structure includes a guide groove, in which a slider is slidably connected longitudinally, and a connecting rod is fixed between two sets of sliders. The connecting rod passes through the base plate laterally and is fixedly connected to the base plate.

[0011] Preferably, the driving structure further includes a rocking spring, the bottom end of which is fixedly connected to the bottom of the guide groove, the top end of which is fixedly connected to the bottom of the slider, an electromagnet is installed at the bottom of the guide groove, and a magnetic plate is fixed at the bottom of the slider. When the electromagnet is energized, it attracts the magnetic plate.

[0012] Preferably, the elastic component includes a rod and a cylinder, the top of the cylinder is fixedly connected to the mounting plate, the rod is fixed to the upper surface of the limiting plate, the top of the rod is inserted into the cylinder and slidably connected to the cylinder, and a return spring is fixed inside the cylinder, the bottom end of the return spring is fixedly connected to the rod.

[0013] Preferably, the insertion rod includes a rod body and a limiting part fixed to the top of the rod body, and the inner cavity of the insertion tube is provided with a groove for the limiting part to slide longitudinally.

[0014] Preferably, a feed hopper is screwed onto the top of the conveying pipe, and the feed hopper includes an inverted frustum portion and a cylindrical portion fixed below the inverted frustum portion.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, by setting a base plate driving structure, a pulse jet nozzle and a limiting plate, enables the ampoule to move up and down controllably at the detection position, forcing the liquid inside the bottle to generate turbulence, causing impurities that have settled at the bottom of the bottle to suspend. Combined with the light-transmitting setting of the through groove on the side wall of the delivery pipe, the visual inspection equipment can capture dynamic images of suspended impurities, improving the accuracy of defect identification and the stability of detection.

[0017] 2. By adding a base plate, the risk of ampoule breakage due to accidental drop is reduced. The elastic limiting structure provides flexible restraint at the bottle mouth, which allows the bottle to move up and down while buffering the impact force and preventing damage to the bottle mouth from collision. Compared with pure pneumatic support, it can reduce the breakage rate of ampoule. Attached Figure Description

[0018] Figure 1 This is an isometric drawing of this utility model;

[0019] Figure 2 This is a schematic diagram of the swaying structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the elastic component of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the base plate and the slider of this utility model.

[0022] In the diagram: 1. Conveying pipe; 2. Shaking structure; 3. Limiting structure; 4. Through groove; 201. Base plate; 301. Limiting plate; 302. Mounting plate; 303. Elastic component; 304. Limiting hole; 202. Drive structure; 2021. Pulse jet; 2022. Guide groove; 2023. Slider; 2024. Connecting rod; 2025. Shaking spring; 2026. Electromagnet; 2027. Magnetic plate; 3031. Insert rod; 3032. Insert cylinder; 3033. Return spring; 3031a. Rod body; 3031b. Limiting part; 3034. Groove; 5. Feed hopper; 501. Inverted truncated cone part; 502. Columnar part. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a stable pharmaceutical glass lamp inspection conveying device, including a conveying tube 1 for placing ampoules, a shaking structure 2 installed inside the conveying tube 1 that can shake the placed ampoule up and down, a limiting structure 3 provided at the top of the conveying tube 1 to limit the top of the shaking ampoule, and a through groove 4 opened on the side wall of the conveying tube 1 for light to pass through and project.

[0025] The side wall of the through channel 4 has light-transmitting holes for light projection, facilitating visual inspection of foreign objects inside the bottle. The shaking structure 2 simulates manual shaking, causing impurities that have settled at the bottom of the bottle to float. Transparent acrylic baffles are installed at the through channel 4 to prevent dust from entering the delivery pipe 1 and contaminating the ampoule, while allowing light to pass through without affecting the inspection.

[0026] The shaking structure 2 includes a base plate 201 and a driving structure 202 that drives the base plate 201 to move smoothly up and down. The limiting structure 3 includes a limiting plate 301 and a mounting plate 302 that provides a mounting position for the limiting plate 301. An elastic component 303 for the limiting rod to slide up and down is installed at the bottom of the mounting plate 302. A limiting hole 304 for the top of the ampoule to be inserted is opened in the middle of the limiting plate 301.

[0027] The limiting hole 304 has a diameter slightly larger than the top of the ampoule, allowing for slight swaying but restricting its dislodgement. The driving structure 202 includes two sets of pulse jets 2021, which are symmetrically fixed on the upper and lower surfaces of the base plate 201. The sidewall of the delivery pipe 1 is equipped with a guide structure that enables the base plate 201 to move stably.

[0028] Two sets of pulse jets 2021 respectively buffer the descent of the ampoule when blowing air upwards and lift the base plate 201 upwards when blowing air downwards. By intermittently jetting air to push the base plate 201 up and down, the movement of the base plate 201 is simulated to mimic a manual shaking gesture, causing air bubbles / impurities inside the ampoule to float to the surface.

[0029] The guiding structure includes a guide groove 2022, in which a slider 2023 is longitudinally slidably connected. A connecting rod 2024 is fixed between two sets of sliders 2023. The connecting rod 2024 passes through the base plate 201 laterally and is fixedly connected to the base plate 201.

[0030] The guide groove 2022, slider 2023, and connecting rod 2024 form a rigid guide rail, ensuring that the base plate 201 moves vertically without swaying.

[0031] The driving structure 202 also includes a rocking spring 2025. The bottom end of the rocking spring 2025 is fixedly connected to the bottom of the guide groove 2022, and the top end of the rocking spring 2025 is fixedly connected to the bottom of the slider 2023. An electromagnet 2026 is installed at the bottom of the guide groove 2022, and a magnetic attracting piece 2027 is fixed at the bottom of the slider 2023. When the electromagnet 2026 is energized, it attracts the magnetic attracting piece 2027.

[0032] When the electromagnet 2026 is energized, the adsorption slider 2023 returns to its original position, thereby positioning the wobbling base plate 201.

[0033] The elastic component 303 includes a rod 3031 and a sleeve 3032. The top of the sleeve 3032 is fixedly connected to the mounting plate 302. The rod 3031 is fixed to the upper surface of the limiting plate 301. The top of the rod 3031 is inserted into the sleeve 3032 and slidably connected to the sleeve 3032. A return spring 3033 is fixed inside the sleeve 3032. The bottom end of the return spring 3033 is fixedly connected to the rod 3031.

[0034] During the up-and-down shaking of the ampoule, the bottle opening also experiences relative up-and-down movement within the limiting hole 304 of the limiting plate 301: when the bottle body is driven upward by the base plate 201, the bottle opening pushes upward against the limiting plate 301. The limiting plate 301, under pressure, causes the insert rod 3031 on it to slide upward, compressing the return spring 3033 within the insert cylinder 3032. When the bottle body falls, the elastic force of the return spring 3033 pushes the insert rod 3031 and the limiting plate 301 back to their original positions, moving downward with the bottle opening, maintaining a flexible constraint on the bottle opening, and preventing the bottle body from detaching or tilting excessively during shaking.

[0035] The insertion rod 3031 includes a rod body 3031a and a limiting part 3031b fixed to the top of the rod body 3031a. The inner cavity of the insertion tube 3032 is provided with a groove 3034 for the limiting part 3031b to slide longitudinally.

[0036] The limiting part 3031b at the top of the insertion rod 3031 slides within the groove 3034 of the insertion cylinder 3032 to prevent the insertion rod 3031 from completely dislodging from the insertion cylinder 3032, thus ensuring that the elastic component 303 always works effectively.

[0037] A feed hopper 5 is screwed to the top of the conveying pipe 1. The feed hopper 5 includes an inverted frustum portion 501 and a cylindrical portion 502 fixed below the inverted frustum portion 501. Ampoules to be tested are fed into the feed hopper 5. The inverted frustum portion 501 of the feed hopper 5 serves to guide and converge the ampoules, while the cylindrical portion 502 initially aligns the ampoules, ensuring that they fall relatively vertically into the cavity of the conveying pipe 1 below.

[0038] In operation, the electromagnet 2026 is energized and engages with the magnetic chuck 2027, positioning the base plate 201 at the bottom of the feed tube. The ampoules then fall through the feed tube 1 under gravity. Simultaneously, the pulse jet injector 2021 above the base plate 201 is activated, providing upward buoyancy to the ampoules. As the ampoules fall, the external light source of the inspection station projects light onto the ampoules and their internal liquid through the through-slot 4. A high-speed visual inspection device inspects the ampoules through the through-slot 4.

[0039] When the bottom of the ampoule touches the base plate 201, the limiting plate 301 is lowered by an external lifting device, such as a cylinder driving the mounting plate 302 to descend, so that the mounting plate 302 and the limiting plate 301 are positioned together in the cylindrical part 502 of the feed hopper 5, and the neck of the ampoule is inserted into the limiting hole 304 in the middle of the limiting plate 301. The limiting hole 304 provides initial constraint on the bottle mouth.

[0040] Once the ampoule is stable between the base plate 201 and the limiting plate 301, the drive structure 202 begins to operate:

[0041] The pulse jet 2021, fixed to the lower surface of the base plate 201, first sprays a short, strong airflow downwards, pushing the base plate 201 and the ampoule together to overcome the elastic force of the shaking spring 2025 and the weight of the ampoule itself, and move smoothly and rapidly upwards along the guide groove 2022 through the guide structure formed by the slider 2023 and the connecting rod 2024; the pulse jet 2021 is turned off, causing the base plate 201 and the ampoule to shake up and down under the elastic action of the shaking spring 2025, simulating manual shaking of the ampoule, causing the impurities that have settled at the bottom of the ampoule to float to the surface;

[0042] An external light source projects light onto the ampoules and their internal liquid through a channel 4. A high-speed vision inspection device captures multi-angle, continuous images of the ampoules as they move through the channel 4. Suspended impurities move within the liquid, forming dynamic and more easily identifiable feature points in the image.

[0043] When electromagnet 2026 is energized, it generates a strong magnetic field, which attracts the magnetic plate 2027 fixed to the bottom of slider 2023. The attraction action instantly stops the upward movement, bringing the swaying base plate 201 to a standstill, thus completing the sway detection.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stable pharmaceutical glass inspection and conveying device, characterized in that: It includes a delivery tube (1) for placing ampoules, a shaking structure (2) installed inside the delivery tube (1) to shake the placed ampoule up and down, a limiting structure (3) for limiting the top of the shaking ampoule is provided at the top of the delivery tube (1), and a through groove (4) for light to be transmitted through the side wall of the delivery tube (1). The shaking structure (2) includes a base plate (201) and a driving structure (202) for driving the base plate (201) to move smoothly up and down. The limiting structure (3) includes a limiting plate (301) and a mounting plate (302) for providing a mounting position for the limiting plate (301). An elastic component (303) for the limiting rod to slide up and down is installed at the bottom of the mounting plate (302). A limiting hole (304) for inserting the top of the ampoule is opened in the middle of the limiting plate (301).

2. The stable pharmaceutical glass inspection conveying device according to claim 1, characterized in that: The drive structure (202) includes a pulse jet (2021), and two sets of the pulse jet (2021) are provided. The two sets of pulse jet (2021) are symmetrically fixed on the upper and lower surfaces of the base plate (201). The side wall of the conveying pipe (1) is equipped with a guide structure that enables the base plate (201) to move stably.

3. The stable pharmaceutical glass inspection conveying device according to claim 2, characterized in that: The guide structure includes a guide groove (2022), in which a slider (2023) is longitudinally slidably connected. A connecting rod (2024) is fixed between two sets of sliders (2023), and the connecting rod (2024) passes through the base plate (201) laterally and is fixedly connected to the base plate (201).

4. The stable pharmaceutical glass inspection conveying device according to claim 3, characterized in that: The driving structure (202) also includes a rocking spring (2025), the bottom end of which is fixedly connected to the bottom of the guide groove (2022), the top end of which is fixedly connected to the bottom of the slider (2023), an electromagnet (2026) is installed at the bottom of the guide groove (2022), and a magnetic absorbing piece (2027) is fixed at the bottom of the slider (2023). When the electromagnet (2026) is energized, it attracts the magnetic absorbing piece (2027).

5. The stable pharmaceutical glass inspection conveying device according to claim 4, characterized in that: The elastic component (303) includes a rod (3031) and a tube (3032). The top of the tube (3032) is fixedly connected to the mounting plate (302). The rod (3031) is fixed on the upper surface of the limiting plate (301). The top of the rod (3031) is inserted into the tube (3032) and slidably connected to the tube (3032). A return spring (3033) is fixed inside the tube (3032). The bottom end of the return spring (3033) is fixedly connected to the rod (3031).

6. The stable pharmaceutical glass inspection conveying device according to claim 5, characterized in that: The insertion rod (3031) includes a rod body (3031a) and a limiting part (3031b) fixed to the top of the rod body (3031a). The inner cavity of the insertion tube (3032) is provided with a groove (3034) for the limiting part (3031b) to slide longitudinally.

7. The stable pharmaceutical glass inspection conveying device according to claim 1, characterized in that: The top of the conveying pipe (1) is fitted with a feed hopper (5) by screws. The feed hopper (5) includes a frustum (501) and a cylindrical part (502) fixed below the frustum (501).

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