Foreign matter detection device and detection machine for row plastic ampoules

Abstract

The utility model discloses a foreign matter detection device and a detection machine for row plastic ampoules, the detection device comprises a bottle inlet conveying mechanism, a clamping detection mechanism and a bottle outlet rejecting mechanism which are connected in sequence, the bottle inlet conveying mechanism is used for conveying bottle bodies to the clamping detection mechanism in a lying mode, and the bottle outlet rejecting mechanism is used for rejecting the bottle bodies. The clamping detection mechanism comprises a clamping conveying belt and a detection assembly, the clamping conveying belt is used for clamping at least one end of a bottle body to pass through the detection assembly, the bottle feeding conveying mechanism and the detection assembly are arranged on the same side of the clamping conveying belt, and the bottle discharging waste removing mechanism is used for removing unqualified bottle bodies; the detection machine comprises an appearance detection mechanism, a turnover mechanism and the foreign matter detection device which are connected in sequence. According to the utility model, the detection of the row ampoules and the high result accuracy are ensured.

Description

Technical Field

[0001] This utility model relates to the field of testing technology for multi-panel ampoules, and in particular to a foreign object detection device and testing machine for multi-panel plastic ampoules. Background Technology

[0002] Before packaging, BFS (Block Frame Freezing) ampoules undergo testing after production to remove defective products due to bottle defects, liquid level at the spout, and foreign matter. When automated equipment performs continuous online inspection of BFS ampoules, the bottles are inspected vertically for appearance. However, during foreign matter detection, sinking foreign matter often casts shadows at the junction of the bottle bottom and tail, making it difficult for the visual camera to accurately identify its presence. For floating foreign matter, bubbles in the liquid may overlap and become trapped with the foreign matter, making them difficult to detect.

[0003] To address the above challenges, existing technologies, such as the plastic ampoule flipping conveyor device (patent number CN201520882838.8) and the conveyor device and production line for changing the conveying posture of plastic ampoules (patent number CN202211637573.6), disclose the flipping of the ampoules for inspection, all using a twisting belt. However, the existing technologies do not disclose how to inspect ampoules in rows. Utility Model Content

[0004] The purpose of this utility model is to provide a foreign object detection device and machine for a row of plastic ampoules, which solves the problem of how to detect foreign objects in a row of ampoules.

[0005] This invention is implemented as follows: a foreign object detection device for a row of plastic ampoules includes a bottle infeed conveying mechanism, a clamping detection mechanism, and a bottle outfeed rejection mechanism connected in sequence. The bottle infeed conveying mechanism is used to transport the bottle body to the clamping detection mechanism in a flat manner. The clamping detection mechanism includes a clamping conveyor belt and a detection component. The clamping conveyor belt is used to clamp at least one end of the bottle body as it passes through the detection component. The bottle infeed conveying mechanism and the detection component are located on the same side of the clamping conveyor belt. The bottle outfeed rejection mechanism is used to reject unqualified bottles.

[0006] The bottle is placed horizontally and fed into the clamping and detection mechanism. The clamping and detection mechanism holds at least one end of the bottle and transports it while holding at least one end. During the transport, the bottle body is exposed within the detection range of the detection component. The detection area is larger than that when the bottle is upright, making the detection results more accurate. At the same time, the bottle is transported to the bottle exit rejection mechanism. Bottles that fail the detection are rejected, thus completing the foreign object detection.

[0007] A further technical solution of this utility model is as follows: the bottle feeding conveyor mechanism is arranged parallel to the clamping conveyor belt. The bottle feeding conveyor mechanism is used to fix the bottle body for conveying, and the clamping conveyor belt is used to clamp the bottle tail for conveying. The bottle feeding conveyor mechanism fixes the bottle body for conveying. When it is conveyed to the position where it docks with the clamping conveyor belt, the bottle tail enters the clamping conveyor belt. During the movement of the clamping conveyor belt, the bottle body detaches from the bottle feeding conveyor mechanism, exposing the bottle body for easy inspection. The parallel arrangement of the bottle feeding conveyor mechanism and the clamping conveyor belt ensures the accuracy of docking between them and reduces the difficulty.

[0008] A further technical solution of this utility model is as follows: The detection component includes a first light source, a second light source, and a camera arranged sequentially. The first light source is positioned above the bottle, and the second light source is positioned below the bottle and tilted towards the bottle. The camera acquires a photograph of the bottle through a prism. When the first light source illuminates the bottle from above, it acts as a backlight. When there is a foreign object inside the bottle, the camera captures a dark-field image of the foreign object through the prism. When there is no foreign object, all light from the first light source passes through the bottle and is captured by the camera, resulting in no dark-field image. When the second light source illuminates the bottle from below, if there is a foreign object inside the bottle, the reflected light from the second light source passes through the prism and is captured by the camera, resulting in a bright-field image of the foreign object. Otherwise, no bright-field image is captured.

[0009] A further technical solution of this utility model is that the distance between the first light source, the second light source, and the camera is adjustable. This ensures that the first and second light sources can accurately block or reflect foreign objects inside the bottle.

[0010] A further technical solution of this utility model is that the tilt angle of the second light source is adjustable. This ensures that the light from the second light source can be reflected by foreign objects within the bottle body.

[0011] A further technical solution of this utility model is as follows: the bottle ejection and rejection mechanism includes an ejection conveyor belt, a non-conforming product guide, and a rejection component. The rejection component and the non-conforming product guide are respectively placed on both sides of the ejection conveyor belt. The rejection component is used to reject non-conforming products onto the non-conforming product guide. The rejection component can be extended or retracted to reject non-conforming products onto the non-conforming product guide, which is convenient, quick, and has a reasonable layout.

[0012] A further technical solution of this utility model is: the non-conforming product guide includes a first guide for receiving bottles with non-conforming appearance and a second guide for receiving bottles containing foreign objects. Non-conforming products with non-conforming appearance and non-conforming products containing foreign objects are collected separately, facilitating subsequent processing and classification.

[0013] This utility model also provides an inspection machine for a row of plastic ampoules, including an appearance inspection mechanism, a flipping mechanism, and a foreign object detection device connected in sequence. After the appearance inspection, the ampoules are laid flat by the flipping mechanism, and then foreign objects are detected and discarded by the foreign object detection device. The process design is reasonable.

[0014] The beneficial effects of this utility model are as follows: The bottle body is laid flat and enters the clamping and detection mechanism through the bottle feeding conveyor. The clamping and detection mechanism clamps at least one end of the bottle body and conveys it while holding at least one end of the bottle body. During the conveying process, the bottle body is exposed within the detection range of the detection component. At this time, the detection area is larger than that of the bottle body when it is vertical, which makes the detection results more accurate. At the same time, the bottle body is conveyed to the bottle exit rejection mechanism. Bottles that are found to be unqualified by the detection component are rejected, thus completing the foreign object detection. Attached Figure Description

[0015] Figure 1 This is a perspective view of a testing machine for a row of plastic ampoules provided by this utility model;

[0016] Figure 2 This is a structural schematic diagram of a testing machine for a row of plastic ampoules provided by this utility model;

[0017] Figure 3 This is a top view of a testing machine for a row of plastic ampoules provided by this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the detection component provided by this utility model;

[0019] Figure 5 This is a structural schematic diagram of the row of ampoules provided by this utility model;

[0020] Figure 6 This is a schematic diagram of the row of ampoules provided by this utility model on the bottle feeding and clamping conveying mechanism.

[0021] Reference numerals: 1. Bottle infeed conveyor mechanism;

[0022] 2. Clamping and detection mechanism; 21. Clamping conveyor belt; 22. Detection component; 221. First light source; 222. Second light source; 223. Camera; 224. Prism.

[0023] 3. Bottle ejection rejection mechanism; 31. Bottle ejection conveyor belt; 32. Non-conforming product guide; 33. Rejection component; 4. Tilting mechanism; 41. Height adjustment component; 5. Non-conforming product collection box; 6. Appearance rejection signal photoelectric sensor; 7. Foreign object rejection signal photoelectric sensor; 8. Conforming product detection photoelectric sensor; 10. Ampoules in a row; 11. Bottle body; 12. Bottle tail. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0025] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0026] Example 1:

[0027] Figure 1-6 A foreign object detection device for a row of plastic ampoules is shown, comprising a bottle feeding conveyor 1, a clamping detection mechanism 2, and a bottle removal and rejection mechanism 3 connected in sequence. The bottle feeding conveyor 1 is used to convey the bottle body to the clamping detection mechanism 2 in a flat manner. The clamping detection mechanism 2 includes a clamping conveyor belt 21 and a detection component 22. The clamping conveyor belt 21 is used to clamp the bottle body at least one end as it passes through the detection component 22. The bottle feeding conveyor 1 and the detection component 22 are located on the same side of the clamping conveyor belt 21. The bottle removal and rejection mechanism 3 is used to reject unqualified bottles.

[0028] The bottle is placed horizontally and fed into the clamping and detection mechanism. The clamping and detection mechanism holds at least one end of the bottle and transports it while holding at least one end. During the transport, the bottle body is exposed within the detection range of the detection component. The detection area is larger than that when the bottle is upright, making the detection results more accurate. At the same time, the bottle is transported to the bottle exit rejection mechanism. Bottles that fail the detection are rejected, thus completing the foreign object detection.

[0029] In this embodiment, the bottle body is transported towards the clamping and detection mechanism on the upper and lower clamping bottle conveying mechanism. When it is transported to the clamping and detection mechanism, the end of the bottle body enters the clamping conveyor belt of the clamping and detection mechanism. During the movement of the clamping conveyor belt, the bottle body is detached from the bottle conveying mechanism, completing the entry of the bottle body into the clamping and conveying mechanism. At this time, the bottle body is only clamped and fixed by the conveyor belt, while the bottle body is completely exposed so that when it passes through the detection component, the detection of foreign objects in the bottle can be completed smoothly without being affected.

[0030] In this embodiment, the clamping conveyor belt is used to clamp the ends of the bottle body from both above and below.

[0031] In this embodiment, the bottle feeding conveyor 1 and the clamping conveyor belt 21 are arranged parallel to each other. The bottle feeding conveyor 1 is used to fix the bottle body 11 for conveying, and the clamping conveyor belt 21 is used to clamp the bottle tail 12 for conveying. The bottle feeding conveyor fixes the bottle body for conveying. When it is conveyed to the position where it docks with the clamping conveyor belt, the bottle tail enters the clamping conveyor belt. During the movement of the clamping conveyor belt, the bottle body detaches from the bottle feeding conveyor, exposing the bottle body for easy inspection. The parallel arrangement of the bottle feeding conveyor and the clamping conveyor belt ensures the accuracy of docking and reduces the difficulty.

[0032] In this embodiment, the conveyor belt for holding the bottle overlaps with the bottle feeding mechanism.

[0033] In this embodiment, the detection component 22 includes a first light source 221, a second light source 222, and a camera 223 arranged sequentially. The first light source 221 is positioned above the bottle, and the second light source 222 is positioned below the bottle and tilted towards the bottle. The camera 223 acquires a photograph of the bottle through a prism 224. When the first light source illuminates the bottle from above, it acts as a backlight. When there is a foreign object inside the bottle, the camera captures a dark-field image of the foreign object through the prism. When there is no foreign object, the light from the first light source passes through the bottle and is captured by the camera, resulting in no dark-field image. When the second light source illuminates the bottle from below, if there is a foreign object inside the bottle, the reflected light from the second light source passes through the prism and is captured by the camera, resulting in a bright-field image of the foreign object. Otherwise, no bright-field image is captured.

[0034] In this embodiment, the spacing between the first light source 221, the second light source 222, and the camera 223 is adjustable. This ensures that the first and second light sources can accurately block or reflect foreign objects inside the bottle.

[0035] In this embodiment, the first light source, the second light source, and the camera are all mounted on a mounting rod, which is placed on a mounting base. The mounting rod has scale lines, and the positions of the first light source, the second light source, and the camera relative to the mounting rod can also be adjusted.

[0036] In this embodiment, the tilt angle of the second light source 222 is adjustable. This ensures that the light from the second light source can be reflected by foreign objects within the bottle body.

[0037] In this embodiment, the camera and prism are mounted on the same platform.

[0038] In this embodiment, the bottle ejection and rejection mechanism 3 includes an ejection conveyor belt 31, a defective product guide 32, and a rejection component 33. The rejection component 33 and the defective product guide 32 are respectively positioned on both sides of the ejection conveyor belt 31. The rejection component 33 is used to reject defective products onto the defective product guide 32. The rejection component can be extended or retracted to reject defective products onto the defective product guide, which is convenient, quick, and has a reasonable layout.

[0039] In this embodiment, the defective product guide 32 includes a first guide for receiving bottles with defective appearance and a second guide for receiving bottles containing foreign objects. Defective products in appearance and those containing foreign objects are collected separately, facilitating subsequent processing and classification.

[0040] In this embodiment, rejection is divided into appearance rejection and foreign object rejection. The defective product guide is pushed into the guide at high speed by a cylinder. The bottom of the qualified product guide has a cross roller structure, which can effectively prevent the product from sticking to the bottom of the qualified product guide and falling off.

[0041] In this embodiment, an appearance rejection signal photoelectric sensor 6, a foreign object rejection signal photoelectric sensor 7, and a qualified product detection photoelectric sensor 8 are provided above the bottle discharge conveyor belt.

[0042] In this embodiment, the defective product guide 32 is connected to the defective product collection box 5.

[0043] Example 2:

[0044] like Figure 1-6 This invention illustrates a testing machine for a row of plastic ampoules, comprising a visual inspection mechanism (not shown), a flipping mechanism 4, and a foreign object detection device as described in Embodiment 1, connected in sequence. After visual inspection, the ampoules are flattened by the flipping mechanism, and then foreign objects are detected and discarded by the foreign object detection device. The process design is reasonable.

[0045] In this embodiment, the flipping mechanism uses two flat belts to clamp the upright bottle and twist it 90 degrees. The clamping position can be adjusted by changing the height of the belts using a screw to control the vertical position of the bottle. Figure 2 The height adjustment component 41 is used to adjust the bottle body to a suitable position on the clamping conveyor belt after inverting. The inverting direction can be achieved by changing the inverting belt, and the width of the clamping belt can be adjusted for different bottle sizes.

[0046] In this embodiment, the bottle body, i.e., the row of ampoules 10, includes a bottle body 11 and a bottle tail 12, with the structure as follows: Figure 5 As stated above.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foreign object detection device for a row of plastic ampoules, characterized in that: The device includes a bottle feeding conveyor (1), a clamping and detection mechanism (2), and a bottle removal and rejection mechanism (3) connected in sequence. The bottle feeding conveyor (1) is used to transport the bottle body to the clamping and detection mechanism (2) in a flat manner. The clamping and detection mechanism (2) includes a clamping conveyor belt (21) and a detection component (22). The clamping conveyor belt (21) is used to clamp the bottle body at least one end through the detection component (22). The bottle feeding conveyor (1) and the detection component (22) are located on the same side of the clamping conveyor belt (21). The bottle removal and rejection mechanism (3) is used to reject unqualified bottles.

2. The foreign object detection device for a row of plastic ampoules according to claim 1, characterized in that, The bottle feeding conveyor (1) is arranged in parallel with the clamping conveyor belt (21). The bottle feeding conveyor (1) is used to fix the bottle body (11) for conveying, and the clamping conveyor belt (21) is used to clamp the bottle tail (12) for conveying.

3. The foreign object detection device for a row of plastic ampoules according to claim 1, characterized in that, The detection component (22) includes a first light source (221), a second light source (222), and a camera (223) arranged in sequence. The first light source (221) is placed above the bottle, the second light source (222) is placed below the bottle and tilted towards the bottle, and the camera (223) acquires a photo of the bottle through a prism (224).

4. The foreign object detection device for a row of plastic ampoules according to claim 3, characterized in that, The spacing between the first light source (221), the second light source (222), and the camera (223) is adjustable.

5. A foreign object detection device for a row of plastic ampoules according to claim 3, characterized in that, The tilt angle of the second light source (222) is adjustable.

6. The foreign object detection device for a row of plastic ampoules according to claim 1, characterized in that, The bottle ejection rejection mechanism (3) includes a bottle ejection conveyor belt (31), a non-conforming product guide (32), and a rejection component (33). The rejection component (33) and the non-conforming product guide (32) are respectively placed on both sides of the bottle ejection conveyor belt (31). The rejection component (33) is used to reject non-conforming products to the non-conforming product guide (32).

7. A foreign object detection device for a row of plastic ampoules according to claim 6, characterized in that, The non-conforming product guide (32) includes a first guide for receiving bottles with non-conforming appearance and a second guide for receiving foreign objects inside the bottles.

8. A testing machine for a row of plastic ampoules, characterized in that, It includes an appearance inspection mechanism, a flipping mechanism (4), and a foreign object detection device as described in any one of claims 1-7, connected in sequence.

Images