Defect detecting and removing mechanism for medicinal bottle caps

By using cameras and processor analysis combined with an adjustable conveyor belt structure in the bottle cap inspection device, the problem of the existing technology being unable to remove bottle caps with dust or hair is solved, efficient defect detection and removal is achieved, and detection accuracy and adaptability are improved.

CN223475638UActive Publication Date: 2025-10-28浙江理工大学龙港研究院有限公司 +1
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Patent Information

Application Number
CN202422864362.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-10-28
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

Existing bottle cap assembly inspection devices cannot effectively remove defective products containing dust or hair.

Method used

A camera is used to capture images of bottle caps and the images are analyzed by a processor. A discharge cylinder is used to push bottle caps with dust or hair off the conveyor belt. The adjustable conveyor belt structure can adapt to bottle caps of different outer diameters and heights.

Benefits of technology

It can effectively remove bottle caps with dust or hair, improve the accuracy and adaptability of detection, and ensure the quality of subsequent products.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223475638U_ABST
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Abstract

The utility model discloses a mechanism for detecting and removing flaws of medicinal bottle caps, which comprises a rack, a placing rack is fixed on the rack, a camera for shooting the bottle caps is fixedly connected on the placing rack, a blanking cylinder is arranged on the outer wall of the placing rack, and the blanking cylinder is fixedly connected with the rack. A first supporting frame and a second supporting frame which are oppositely arranged are arranged on the machine frame, the first supporting frame and the second supporting frame are each rotationally connected with a conveying belt, the discharging air cylinder is located between the two conveying belts, the rotating directions of the two conveying belts are opposite, and the two conveying belts are used for clamping bottle caps. The camera is electrically connected with the discharging air cylinder through the processor, and the purpose of removing the bottle caps with hair or dust is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of bottle cap production, and more specifically, it relates to a defect detection and rejection mechanism for pharmaceutical bottle caps. Background Technology

[0002] Currently, Chinese patent CN220111672U discloses a bottle cap assembly detection and rejection device, including a conveyor belt and at least one set of detection and rejection components; the detection and rejection components include a bottle cap height detection mechanism and a bottle cap rejection mechanism, which are arranged sequentially along the running direction of the conveyor belt; the bottle cap height detection mechanism is used to detect whether the height of the assembled bottle cap exceeds the preset value of the bottle cap height detection mechanism; the bottle cap rejection mechanism is used to reject bottle caps that exceed the preset value of the bottle cap height detection mechanism.

[0003] Based on the height detection of bottle caps, defective products can be detected and rejected after assembly. By setting up two consecutive sets of detection and rejection components, two defective products in parallel can be detected and rejected, ensuring that there are no defective products in the downstream products.

[0004] However, this bottle cap assembly detection and rejection device cannot adapt when dust or hair falls on the bottle cap. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present invention provides a defect detection and rejection mechanism for pharmaceutical bottle caps, which can remove bottle caps with hair or dust.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a defect detection and rejection mechanism for pharmaceutical bottle caps, comprising a frame, a placement frame fixed on the frame, a camera for photographing bottle caps fixedly connected to the placement frame, a feeding cylinder provided on the outer wall of the placement frame, a first support frame and a second support frame arranged opposite to each other on the frame, conveyor belts rotatably connected to both the first support frame and the second support frame, the feeding cylinder being located between the two conveyor belts, the two conveyor belts rotating in opposite directions and used to clamp bottle caps, and the camera being electrically connected to the feeding cylinder via a processor.

[0007] By adopting the above technical solution, two conveyor belts rotate, causing bottle caps to be transported along with the conveyor belts. During this process, the camera is activated and takes pictures of the bottle caps. The images are transmitted to the processor, which analyzes the images. If hair or dust is captured, there will be a data anomaly. The processor sends an electrical signal to the feeding cylinder, which is then activated. The telescopic shaft of the feeding cylinder extends and pushes the bottle caps off between the two conveyor belts. Bottle caps without hair or dust will continue to be transported along the conveyor belts to achieve the purpose of rejection.

[0008] The present invention is further configured such that: a track is fixed on the frame, the first support frame and the second support frame are slidably connected to the track, and an adjusting rod is rotatably connected to the frame; the adjusting rod rotates and, through the adjusting structure, causes the first support frame and the second support frame to move synchronously in a direction away from or close to each other.

[0009] By adopting the above technical solution, the adjusting rod is rotated, and the adjusting structure causes the first support frame and the second support frame to move synchronously in a direction away from or close to each other, thereby adjusting the distance between the two conveyor belts to accommodate bottle caps of different outer diameters and greatly improving practicality.

[0010] The present invention is further configured such that: the adjusting structure includes a first threaded sleeve, a second threaded sleeve, a first slider, a second slider, a first threaded segment, and a second threaded segment; the first slider and the second slider are both slidably connected to the track; the first slider is connected to a first support frame; the second slider is connected to a second support frame; the first threaded sleeve is fixedly connected to the first slider; the second threaded sleeve is fixedly connected to the second slider; the first threaded segment and the second threaded segment are both formed on the adjusting rod; the first threaded segment and the second threaded segment rotate in opposite directions; the first threaded sleeve is threadedly connected to the first threaded segment; and the second threaded sleeve is threadedly connected to the second threaded segment.

[0011] By adopting the above technical solution, rotating the adjusting rod in the forward direction causes the first and second sliders to move closer to each other through the transmission effect of the first and second threaded sections, thereby causing the two conveyor belts to move further apart to accommodate bottle caps with large outer diameters. Similarly, when the adjusting rod rotates in the reverse direction, the two conveyor belts move closer to each other to accommodate bottle caps with small outer diameters, thereby improving practicality.

[0012] The present invention is further configured such that: a first vertical rod is fixedly connected to the first slider, a first horizontal plate is fixedly connected to the first vertical rod, a first support rod is rotatably connected to the first horizontal plate, the first support rod is threadedly connected to the first support frame, the first support frame is slidably connected to the first vertical rod, and the first support rod is arranged parallel to the first vertical rod.

[0013] By adopting the above technical solution, the first support rod is rotated, and through the transmission effect of the thread, the first support frame moves along the length of the first support rod to adjust the height position of the first support frame to adapt to bottle caps and production lines of different heights.

[0014] The present invention is further configured such that: a second vertical rod is fixedly connected to the second slider, a second horizontal plate is fixedly connected to the second vertical rod, a second support rod is rotatably connected to the second horizontal plate, the second support rod is threadedly connected to the second support frame, the second support frame is slidably connected to the second vertical rod, and the second support rod is arranged parallel to the second vertical rod.

[0015] By adopting the above technical solution, the second support rod is rotated, and through the transmission effect of the thread, the second support frame moves along the length direction of the second support rod to adjust the height position of the second support frame to adapt to bottle caps and production lines of different heights, while making the height of the first support frame adapt to the height of the second support frame.

[0016] The present invention is further configured such that: an inclined feeding plate is fixedly connected to the track, and the upper end of the feeding plate corresponds to the feeding cylinder.

[0017] By adopting the above technical solution, after the feeding cylinder is opened, the telescopic shaft of the feeding cylinder extends and contacts the bottle cap, pushing the bottle cap from between the two conveyor belts onto the feeding plate. Under the action of gravity, the bottle cap falls along the feeding plate to facilitate the collection of the bottle cap.

[0018] The present invention is further configured such that: a lighting lamp is fixed on the placement frame, the lighting lamp is located between the conveyor belt and the camera, and the lighting lamp has a through hole corresponding to the camera.

[0019] By adopting the above technical solution, the brightness of the lamp is improved, thereby improving the accuracy when taking pictures; by aligning the through hole with the camera, light is reflected from the through hole onto the camera, so that the lamp illuminates the bottle cap more evenly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0021] Figure 2 This diagram illustrates the position of the material feed plate.

[0022] Figure 3 This diagram illustrates the location of the lighting fixtures;

[0023] Figure 4 To illustrate the structure of the slide rail;

[0024] Figure 5 A schematic diagram illustrating the structure of the adjusting rod.

[0025] Reference numerals: 1. Frame; 2. Placement rack; 21. Cover plate; 3. Camera; 4. Lighting lamp; 41. Through hole; 5. Feeding cylinder; 51. Telescopic shaft; 52. Pressure block; 61. First support frame; 62. Second support frame; 63. Conveyor belt; 64. Servo motor; 71. Track; 72. Adjusting rod; 73. Adjusting structure; 74. First threaded sleeve; 75. Second threaded sleeve; 76. First slider; 77. Second slider; 78. First threaded section; 79. Second threaded section; 81. First vertical rod; 82. First horizontal plate; 83. First support rod; 91. Second vertical rod; 92. Second horizontal plate; 93. Second support rod; 100. Feeding plate. Detailed Implementation

[0026] The present invention will be further described with reference to the accompanying drawings.

[0027] like Figures 1 to 5 As shown, a defect detection and rejection mechanism for pharmaceutical bottle caps includes a frame 1, on which a placement rack 2 is fixed. The placement rack 2 is a dark box, and its side wall has a cover plate 21. A camera 3 for photographing bottle caps is fixedly connected inside the placement rack 2, and the camera 3 is placed vertically. An illumination lamp 4 is fixed on the placement rack 2, located below the camera 3. The illumination lamp 4 is annular, and has a through hole 41 in its center, which corresponds to the camera 3.

[0028] A vertically positioned feeding cylinder 5 is fixed to the outer wall of the placement frame 2. A first support frame 61 and a second support frame 62 are arranged opposite to each other on the frame 1. Conveyor belts 63 are rotatably connected to both the first support frame 61 and the second support frame 62, and the feeding cylinder 5 is located between the two conveyor belts 63. The two conveyor belts 63 rotate in opposite directions and are used to clamp bottle caps. A vertically positioned servo motor 64 is fixed to one end of both the first support frame 61 and the second support frame 62. A first pulley is fixedly connected to the rotating shaft of the servo motor 64, and a second pulley is rotatably connected to the other end of both the first support frame 61 and the second support frame 62. The conveyor belts 63 are tensioned by the first pulley and the second pulley. The conveyor belts 63 are belts.

[0029] Two conveyor belts 63 are used to hold and transport bottle caps. A light 4 is located between the conveyor belts 63 and the camera 3.

[0030] Camera 3 is electrically connected to the feeding cylinder 5 via a processor (not shown in the figure). The processor is an industrial computer.

[0031] The illumination lamp 4 remains continuously activated, and the two conveyor belts 63 rotate in opposite directions, causing the bottle caps to be transported along with the conveyor belts 63. When a bottle cap aligns with the through hole 41, the camera 3 activates and takes a picture of the bottle cap. The image is transmitted to the processor, which analyzes the image. If hair or dust is detected, a data anomaly is detected, and the processor sends an electrical signal to the feeding cylinder 5. The feeding cylinder 5 activates, and its telescopic shaft 51 extends, pushing the bottle cap between the two conveyor belts 63. Bottle caps without hair or dust continue to be transported along the conveyor belts 63, achieving the purpose of rejection.

[0032] Two parallel and horizontally placed rails 71 are fixed on the frame 1. A first support frame 61 and a second support frame 62 are both slidably connected to the rails 71. A horizontally arranged adjusting rod 72 is rotatably connected to the frame 1, located between the two rails 71, with its length parallel to the length of the rails 71. Rotation of the adjusting rod 72, through an adjusting structure 73, causes the first support frame 61 and the second support frame 62 to move synchronously in directions away from or towards each other.

[0033] The adjusting structure 73 includes a first threaded sleeve 74, a second threaded sleeve 75, a first slider 76, a second slider 77, a first threaded section 78, and a second threaded section 79. The first slider 76 and the second slider 77 are both slidably connected to the track 71. The first slider 76 is connected to the first support frame 61, and the second slider 77 is connected to the second support frame 62.

[0034] The first threaded sleeve 74 is fixedly connected to the first slider 76, and the second threaded sleeve 75 is fixedly connected to the second slider 77. The first threaded section 78 and the second threaded section 79 are both formed on the adjusting rod 72. The first threaded section 78 and the second threaded section 79 rotate in opposite directions. The first threaded sleeve 74 is threadedly connected to the first threaded section 78; the second threaded sleeve 75 is threadedly connected to the second threaded section 79.

[0035] When the adjusting rod 72 rotates in the forward direction, the first slider 76 and the second slider 77 move closer to each other through the transmission effect of the first threaded section 78 and the second threaded section 79, thereby causing the two conveyor belts 63 to move further apart to accommodate bottle caps with large outer diameters. Similarly, when the adjusting rod 72 rotates in the reverse direction, the two conveyor belts 63 move closer to each other to accommodate bottle caps with small outer diameters.

[0036] A vertically placed first vertical rod 81 is fixedly connected to the first slider 76. There are two first vertical rods 81. A horizontally placed first horizontal plate 82 is fixedly connected to the upper end of the first vertical rod 81. A vertically placed first support rod 83 is rotatably connected to the middle of the first horizontal plate 82, and the first support rod 83 is threadedly connected to the first support frame 61. The first support frame 61 is slidably connected to the first vertical rod 81, and the first support rod 83 is arranged parallel to the first vertical rod 81.

[0037] The height of the first support frame 61 can be adjusted when the first support rod 83 is rotated.

[0038] A vertically placed second vertical rod 91 is fixedly connected to the second slider 77. There are two second vertical rods 91. A horizontally placed second horizontal plate 92 is fixedly connected to the upper end of the second vertical rod 91. A vertically placed second support rod 93 is rotatably connected to the middle of the second horizontal plate 92, and the second support rod 93 is threadedly connected to the second support frame 62. The second support frame 62 is slidably connected to the second vertical rod 91, and the second support rod 93 is arranged parallel to the second vertical rod 91.

[0039] When the second support rod 93 is rotated, the height position of the second support frame 62 can be adjusted so that the height of the first support frame 61 is consistent with the height of the second support frame 62, in order to accommodate production lines and bottle caps of different heights.

[0040] An inclined feeding plate 100 is fixedly connected to the track 71. The upper end of the feeding plate 100 corresponds to the telescopic shaft 51 of the feeding cylinder 5, so as to collect bottle caps with dust or hair.

[0041] A T-shaped pressure block 52 is fixedly connected to the end of the telescopic shaft 51 to increase the contact area with the bottle cap and ensure that the bottle cap falls.

[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A defect detection and rejection mechanism for pharmaceutical bottle caps, comprising a frame (1), characterized in that: A placement rack (2) is fixed on the frame (1), and a camera (3) for taking pictures of bottle caps is fixedly connected to the placement rack (2). A feeding cylinder (5) is provided on the outer wall of the placement rack (2). A first support frame (61) and a second support frame (62) are provided on the frame (1) and are arranged opposite to each other. A conveyor belt (63) is rotatably connected to both the first support frame (61) and the second support frame (62). The feeding cylinder (5) is located between the two conveyor belts (63). The two conveyor belts (63) turn in opposite directions and are used to clamp bottle caps. The camera (3) is electrically connected to the feeding cylinder (5) through a processor.

2. The pharmaceutical bottle cap defect detection and rejection mechanism according to claim 1, characterized in that: The frame (1) is fixed with a track (71), and the first support frame (61) and the second support frame (62) are slidably connected to the track (71). An adjusting rod (72) is rotatably connected to the frame (1). The adjusting rod (72) rotates and, through the adjusting structure (73), causes the first support frame (61) and the second support frame (62) to move synchronously in a direction away from or close to each other.

3. The pharmaceutical bottle cap defect detection and rejection mechanism according to claim 2, characterized in that: The adjustment structure (73) includes a first threaded sleeve (74), a second threaded sleeve (75), a first slider (76), a second slider (77), a first threaded section (78), and a second threaded section (79). The first slider (76) and the second slider (77) are slidably connected to the track (71). The first slider (76) is connected to the first support frame (61), and the second slider (77) is connected to the second support frame (62). The first threaded sleeve (74) is fixedly connected to the first slider (76), and the second threaded sleeve (75) is fixedly connected to the second slider (77). The first threaded section (78) and the second threaded section (79) are both opened on the adjustment rod (72). The first threaded section (78) and the second threaded section (79) rotate in opposite directions. The first threaded sleeve (74) is threadedly connected to the first threaded section (78), and the second threaded sleeve (75) is threadedly connected to the second threaded section (79).

4. The pharmaceutical bottle cap defect detection and rejection mechanism according to claim 3, characterized in that: A first vertical rod (81) is fixedly connected to the first slider (76), a first horizontal plate (82) is fixedly connected to the first vertical rod (81), a first support rod (83) is rotatably connected to the first horizontal plate (82), the first support rod (83) is threadedly connected to the first support frame (61), the first support frame (61) is slidably connected to the first vertical rod (81), and the first support rod (83) is arranged parallel to the first vertical rod (81).

5. The pharmaceutical bottle cap defect detection and rejection mechanism according to claim 3, characterized in that: A second vertical rod (91) is fixedly connected to the second slider (77), a second horizontal plate (92) is fixedly connected to the second vertical rod (91), a second support rod (93) is rotatably connected to the second horizontal plate (92), the second support rod (93) is threadedly connected to the second support frame (62), the second support frame (62) is slidably connected to the second vertical rod (91), and the second support rod (93) is arranged parallel to the second vertical rod (91).

6. The pharmaceutical bottle cap defect detection and rejection mechanism according to claim 3, characterized in that: An inclined feeding plate (100) is fixedly connected to the track (71), and the upper end of the feeding plate (100) corresponds to the feeding cylinder (5).

7. The pharmaceutical bottle cap defect detection and rejection mechanism according to claim 1, characterized in that: A lighting lamp (4) is fixed on the placement frame (2). The lighting lamp (4) is located between the conveyor belt (63) and the camera (3). A through hole (41) is opened on the lighting lamp (4), and the through hole (41) corresponds to the camera (3).

Citation Information

Patent Citations

  • Bottle cap assembling, detecting and removing device

    CN220111672U