Injection molding bottle cap detection device
The injection-molded bottle cap detection device, which combines a multi-angle vision camera and a weighing device, solves the problems of low efficiency and low accuracy in traditional detection methods, and achieves efficient and accurate bottle cap detection and automatic rejection.
Patent Information
- Application Number
- CN202423317594.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional bottle cap inspection relies on manual visual inspection or simple image inspection, which is inefficient and inaccurate, and is prone to missed detections, failing to meet the demand for efficient and accurate inspection.
The system employs a vision camera to comprehensively inspect bottle caps from multiple angles, combined with a weighing device and a rejection assembly to accurately remove defective products. This includes the vision camera detecting images from the bottom, sides, and base of the bottle caps, using a robotic arm to grip and a negative pressure nozzle to suction the caps, and using backlighting and ring light sources to improve detection accuracy. The rejection assembly uses a receiving tray and baffles to automatically sort out defective products.
It achieves comprehensive and accurate inspection of bottle caps, improves inspection efficiency and accuracy, can adapt to different types of bottle caps, ensures the accurate removal of defective products, and reduces manual intervention.
Smart Images
Figure CN223946247U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of injection molded bottle cap detection devices. BACKGROUND
[0002] With the popularity of plastic bottled beverages and food, the quality of bottle cap is directly related to the safety and aesthetics of the final product. The traditional bottle cap detection mainly relies on manual visual inspection or simple picture detection by camera installed on the conveyor belt during packaging and conveying. Manual detection is inefficient and prone to errors. Simple picture detection by camera installed on the conveyor belt is not accurate enough and prone to missed detection. After detection is completed, manual removal is required, which is inefficient. SUMMARY
[0003] The injection molded bottle cap detection device provided by the utility model solves the above technical problems, and specifically adopts the following technical solutions:
[0004] An injection molded bottle cap detection device includes a workbench, a feeding machine installed on one side of the workbench for feeding bottle caps, a feeding belt on the workbench for feeding and conveying bottle caps, and a mechanical hand for grabbing the inner side of the bottle caps on the feeding belt. A first vision camera is provided on the workbench for picture detection of the bottom surface of the bottle cap from below, and a second vision camera is provided for picture detection of the peripheral side of the bottle cap from the side. The workbench top is formed with a through hole for the collection of detected bottle caps. The through hole is connected to a channel for conveying detected bottle caps. The channel is provided with a weighing device for weighing the bottle caps and a rejection assembly for rejecting unqualified bottle caps.
[0005] Further, the rejection assembly includes a mounting plate installed below the channel, a rotating plate rotatably installed above the mounting plate, a receiving disc installed above the rotating plate for receiving bottle caps entering the channel from the through hole, a first square hole formed on the lower side of the channel in the vertical direction for the bottle caps to enter the receiving disc, and a second square hole formed on the lower side of the channel for the bottle caps in the receiving disc to re-enter the channel. A drive cylinder is installed on the mounting plate to drive the rotating plate to tilt the receiving disc and pour the bottle caps in the receiving disc into the second square hole. A rejection hole is provided on the bottom side of the channel below the second square hole for the unqualified bottle caps to fall. A baffle is rotatably installed on the bottom side of the channel on one side of the rejection hole through a rotating shaft to open and close the rejection hole. A rejection cylinder is installed in the workbench to drive the baffle to open and close the rejection hole.
[0006] Further, the baffle driven by the drive cylinder rotates into the channel.
[0007] Further, the weighing device is a weighing sensor installed between the receiving disc and the rotating plate.
[0008] Further, the receiving disc is located directly below the first square hole, and an opening of the first square hole is smaller than an opening of the receiving disc.
[0009] Further, the workbench is internally provided with a collection area for collecting unqualified bottle caps.
[0010] Further, the workbench is further provided with a third visual camera for detecting a bottom surface of the bottle cap from below.
[0011] Further, detection positions of the first visual camera, the second visual camera and the third visual camera on the bottle cap are distributed along a first straight line; the through hole is located on one side of the whole formed by the first visual camera, the second visual camera and the third visual camera, and is located on the first straight line.
[0012] Further, the workbench is provided with a backlight light source for lighting a peripheral side of the bottle cap to improve a picture collection range of the second visual camera on the peripheral side of the bottle cap at a position opposite to the light source of the second visual camera; the first visual camera, the third visual camera and the side of the second visual camera are respectively provided with a first ring-shaped light source, a second ring-shaped light source and a front light source for lighting.
[0013] Further, the grabbing end of the mechanical arm is a negative pressure nozzle for adsorbing an inner side of the bottle cap to move the bottle cap.
[0014] The injection molded bottle cap detection device can comprehensively and accurately detect the bottle cap, accurately remove unqualified products, and has high detection accuracy and efficiency, and can adapt to detection of bottle caps of different models. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0016] Figure 1 is a schematic view of the injection molded bottle cap detection device of the present application;
[0017] Figure 2 is Figure 1 is a schematic view of the internal structure of the injection molded bottle cap detection device in
[0018] Figure 3 is Figure 1 is another view of the internal structure of the injection molded bottle cap detection device in
[0019] Figure 4 isFigure 1 FIG. 4 is a schematic view of an internal rejection assembly of the injection molded bottle cap detection device in FIG. 1.
[0020] The injection molded bottle cap detection device 10, a workbench 11, a collection area 111, a through hole 112, a feeding machine 12, a feeding belt 13, a mechanical hand 14, a negative pressure nozzle 141, a first visual camera 15, a second visual camera 16, a third visual camera 17, a back light source 18, a channel 19, a first square hole 191, a second square hole 192, a rejection hole 193, a mounting plate 20, a rotating plate 21, a receiving disc 22, a driving cylinder 23, a rotating shaft 24, a baffle 25, a rejection cylinder 26, a weighing sensor 27, a first ring light source 28, a second ring light source 29, a front light source 30. DETAILED DESCRIPTION
[0021] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which the same or similar components have the same or similar designations throughout the several views, and a description of an embodiment illustrated is intended to explain the present application, and is not to be understood as a limitation thereof.
[0022] As shown in FIG. 1, the injection molded bottle cap detection device 10 according to the present application comprises a workbench 11, a feeding machine 12 installed on one side of the workbench 11 for feeding bottle caps, a feeding belt 13 provided on the workbench 11 and connected to the feeding machine 12 for feeding and conveying the bottle caps, a mechanical hand 14 provided on the workbench 11 for grabbing the bottle caps on the feeding belt 13, a first visual camera 15, a second visual camera 16 and a third visual camera 17 provided on the workbench 11, a back light source 18, a channel 19, a first square hole 191, a second square hole 192, a rejection hole 193, a mounting plate 20, a rotating plate 21, a receiving disc 22, a driving cylinder 23, a rotating shaft 24, a baffle 25, a rejection cylinder 26, a weighing sensor 27, a first ring light source 28, a second ring light source 29, and a front light source 30. Figures 1 to 4 The workbench 11 is provided with the feeding belt 13 connected to the feeding machine 12, so that the bottle caps can be fed and conveyed. The mechanical hand 14 is provided on the workbench 11 and can grab the bottle caps on the feeding belt 13. The first visual camera 15 and the third visual camera 17 can detect the bottom surface and the interior of the bottle cap from below, and the second visual camera 16 can detect the circumferential side of the bottle cap from the side, so that the bottom surface and the circumferential side of the bottle cap can be comprehensively and accurately detected. The workbench 11 is provided with a through hole 112 connected to the channel 19 for conveying the detected bottle caps. The mechanical hand 14 can put the bottle caps into the channel 19 after the comprehensive detection. The channel 19 is provided with a rejection assembly for rejecting the unqualified bottle caps. That is, when the bottle cap is detected by the first visual camera 15, the second visual camera 16 and the third visual camera 17 and is unqualified, the rejection assembly rejects the bottle cap. If the bottle cap is qualified, it enters the qualified area along the channel 19.
[0023] Specifically, when the bottle cap is conveyed to the feeding position by the feeding belt 13, the mechanical arm 14 picks up the bottle cap and moves it above the first vision camera 15 for bottom surface detection, then moves it above the third vision camera 17 for inner side detection, and finally moves it to the side of the second vision camera 16 for peripheral side detection. After detection, the bottle cap is dropped into the through hole 112 by the mechanical arm 14 and falls into the receiving tray 22. If the bottle cap is unqualified, it is removed by the removal assembly. If the bottle cap is qualified, it enters the qualified area along the channel 19. The injection molded bottle cap detection device 10 can comprehensively and accurately detect the bottle cap and accurately remove unqualified products. The detection is more accurate and efficient, and can adapt to the detection of different types of bottle caps.
[0024] As a specific embodiment, the removal assembly includes a mounting plate 20, the mounting plate 20 is installed below the channel 19, and a rotating plate 21 is rotatably installed above the mounting plate 20. A receiving tray 22 is installed above the rotating plate 21 for receiving the bottle cap entering the channel 19 from the through hole 112. The lower side of the channel 19 is formed with a first square hole 191 and a second square hole 192 in the vertical direction, the first square hole 191 is used for the bottle cap to enter the receiving tray 22, and the second square hole 192 is used for the bottle cap in the receiving tray 22 to enter the channel 19 again. A drive cylinder 23 is installed on the mounting plate 20, which can drive the rotating plate 21 to rotate to tilt the receiving tray 22 to pour the bottle cap in the receiving tray 22 into the second square hole 192. The bottom side of the channel 19 is provided with a removal hole 193 below the second square hole 192, which is used for unqualified bottle caps to fall. A baffle 25 is rotatably installed on one side of the removal hole 193 through a rotating shaft 24 to open and close the removal hole 193. A removal cylinder 26 is installed in the workbench 11 to drive the baffle 25 to open and close the removal hole 193. The workbench 11 is provided with a collection area 111 for collecting unqualified bottle caps. The bottle cap falling from the removal hole 193 enters the collection area 111. That is, after the bottle cap is detected and dropped into the channel 19, it first falls on the receiving tray 22. If the bottle cap is qualified after detection, the drive cylinder 23 is directly extended to tilt the receiving tray 22 to pour the bottle cap into the channel 19 and slide to the qualified area. If the bottle cap is unqualified after detection, the removal cylinder 26 drives the baffle 25 to rotate, at this time the removal hole 193 is opened, then the drive cylinder 23 is extended to tilt the receiving tray 22 to pour the bottle cap into the channel 19, and after entering the channel 19, it slides out of the channel 19 from the removal hole 193 for removal. The removal assembly can buffer the removal and sorting accuracy of the bottle cap by setting the receiving tray 22, so that the whole removal operation is orderly performed, and the situations of removal omission or wrong removal do not occur.
[0025] Further, the receiving disc 22 is located directly below the first square hole, and the aperture of the first square hole 191 is smaller than the opening of the receiving disc 22, so as to ensure that the bottle cap can be safely dropped into the receiving disc 22.
[0026] Further, the baffle 25 driven by the driving cylinder is rotated into the channel 19. In this way, the unqualified bottle cap entering the channel 19 can be shielded by the baffle 25, so as to ensure that the unqualified bottle cap can fall into the rejection hole 193 under the action of gravity, and the rejection operation is more accurate.
[0027] As a specific embodiment, a weighing device is installed between the receiving disc 22 and the rotating plate 21 for detecting the weight of the bottle cap. The weighing device is a weighing sensor 27 arranged between the receiving disc 22 and the rotating plate 21. In this way, the detection of the appearance of the product can also identify whether the bottle cap is qualified through weight detection. When the weight detection of the bottle cap is unqualified, the baffle 25 is also rotated by the rejection cylinder 26 to reject the unqualified bottle cap from the rejection hole 193, and the detection accuracy is higher.
[0028] Specifically, the detection positions of the first vision camera 15, the second vision camera 16 and the third vision camera 17 on the bottle cap are distributed along a first straight line, the through hole 112 is located on one side of the whole formed by the first vision camera 15, the third vision camera 17 and the second vision camera 16, and is located on the first straight line. In this way, the mechanical hand 14 only needs to drive the bottle cap to move along the straight line from the initial first vision camera 15, and the efficiency is higher.
[0029] In the present scheme, the upper side of the first vision camera 15, the upper side of the third vision camera 17 and the side of the second vision camera 16 are respectively provided with a first ring-shaped light source 28, a second ring-shaped light source 29 and a front light source 30 for lighting. After the mechanical hand 14 grasps the bottle cap, the bottle cap is placed in the position encircled by the first ring-shaped light source 28, the second ring-shaped light source 29 and the front light source 30 in turn for bottle cap bottom surface detection. The detection focus of the first vision camera 15, the third vision camera 17 and the second vision camera 16 is more accurate, and the detection accuracy is higher.
[0030] As a specific embodiment, the workbench 11 is provided with a backlight light source 18 at a position opposite to the light source of the second vision camera 16. The backlight light source 18 and the front light source 30 can illuminate the back surface of the bottle cap away from the second vision camera 16, and the second vision camera 16 can detect the picture. In this way, by illuminating the periphery of the bottle cap with specific light, the picture acquisition clarity of the second vision camera 16 on the periphery of the bottle cap can be improved, the detection accuracy is higher, and it is more convenient.
[0031] As a specific embodiment, the grabbing end of the manipulator 14 is a negative pressure nozzle 141, and the inside of the bottle cap is adsorbed by the negative pressure nozzle 141 to move the bottle cap, which not only does not harm the appearance of the bottle cap, but also can adsorb bottle caps of different sizes, and has higher universality.
[0032] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the above examples do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.
Claims
1. A device for detecting injection molded bottle caps, characterized in that, The injection molded bottle cap detection device comprises a workbench, a feeding machine installed on one side of the workbench for feeding bottle caps, an upper feeding belt installed on the workbench for feeding the bottle caps, a mechanical hand installed on the workbench for grabbing the inner side of the bottle caps on the upper feeding belt, a first visual camera installed on the workbench for detecting the bottom surface of the bottle caps from below, a second visual camera installed on the workbench for detecting the circumferential surface of the bottle caps from the side, a through hole formed on the tabletop of the workbench for collecting the detected bottle caps, a channel connected to the through hole for conveying the detected bottle caps, a weighing device installed in the channel for weighing the bottle caps, and a rejection assembly installed in the channel for rejecting the unqualified bottle caps.
2. The injection molded bottle cap detection device according to claim 1, wherein the rejection assembly comprises a mounting plate installed below the channel, a rotating plate rotatably installed above the mounting plate, a receiving disc installed above the rotating plate for receiving the bottle caps entering the channel from the through hole, a first square hole and a second square hole formed on the lower side of the channel in the up-down direction, the first square hole for allowing the bottle caps to enter the receiving disc, and the second square hole for allowing the bottle caps in the receiving disc to enter the channel again, a driving cylinder installed on the mounting plate for driving the rotating plate to rotate so as to tilt the receiving disc and thereby pour the bottle caps in the receiving disc into the second square hole, a rejection hole formed on the bottom side of the channel below the second square hole for allowing the unqualified bottle caps to fall, a shutter rotatably installed on the bottom side of the channel at one side of the rejection hole for opening and closing the rejection hole, and a rejection cylinder installed in the workbench for driving the shutter to open and close the rejection hole.
3. The injection molded bottle cap detection device according to claim 2, wherein the driving cylinder drives the shutter to rotate into the channel.
4. The injection molded bottle cap detection device according to claim 2, wherein the weighing device is a weighing sensor arranged between the receiving disc and the rotating plate.
5. The injection molded bottle cap detection device according to claim 2, wherein the receiving disc is located directly below the first square hole, and the aperture of the first square hole is smaller than the opening of the receiving disc.
6. The injection molded bottle cap detection device according to claim 1, wherein the workbench is provided with a collection area for collecting the unqualified bottle caps.
7. The injection molded bottle cap detection device according to claim 1, wherein the workbench is further provided with a third visual camera for detecting the bottom surface of the bottle caps from below.
8. The injection molded bottle cap detection device according to claim 7, wherein the detection positions of the first visual camera, the second visual camera and the third visual camera on the bottle caps are distributed along a first straight line, and the through hole is located on one side of the whole formed by the first visual camera, the second visual camera and the third visual camera and on the first straight line.
9. The injection molded bottle cap detection device according to claim 7, wherein The workbench is provided with a backlight light source at a position opposite to a light source of the second visual camera for lighting the periphery of the bottle cap to improve the picture collection range of the second visual camera on the periphery of the bottle cap; The first visual camera, the third visual camera and the second visual camera are respectively provided with a first ring-shaped light source, a second ring-shaped light source and a front light source for lighting.
10. The injection molded bottle cap detection device according to claim 1, characterized in that, The grabbing end of the mechanical arm is a negative pressure nozzle for adsorbing the inner side of the bottle cap to move the bottle cap.