Bottle cap appearance quality detection system

The fully automated inspection of bottle cap appearance quality is achieved by using a waterfall-type capping machine and a vision inspection system, which solves the problem of low automation in existing technologies, improves inspection accuracy and efficiency, and meets the high precision requirements of modern production lines.

CN224463234UActive Publication Date: 2026-07-07GUANGZHOU RUISHI INTELLIGENT SYST INTEGRATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU RUISHI INTELLIGENT SYST INTEGRATION CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The current bottle cap production process suffers from low automation in appearance quality inspection and excessive manual intervention, resulting in high rates of missed and false inspections, which makes it difficult to meet the high precision and efficiency requirements of modern production lines.

Method used

The waterfall-style capping machine, combined with a vision inspection device and a conveyor line, enables automatic feeding, multi-angle inspection, and sorting of bottle caps. The top suction conveyor line and vision inspection device perform all-round inspection of the bottle caps and reject unqualified products. The entire process requires no manual intervention.

Benefits of technology

It has achieved full automation of bottle cap appearance quality inspection, reduced the inspection error rate, improved inspection accuracy and efficiency, and ensured strict control over bottle cap quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224463234U_ABST
    Figure CN224463234U_ABST
Patent Text Reader

Abstract

The utility model discloses a bottle cap appearance quality detection system relates to bottle cap production technical field, the utility model discloses a cascade upper cover machine is provided with feeding device on left side, the feeding device tip is provided with conveying line, the most right side of conveying line is provided with machine case, the inside conveying line left side of machine case is provided with split lid mechanism, split lid mechanism right side is provided with top vision device, top vision device periphery is provided with side visual detection device, top vision device right side is provided with top suction conveying line, top suction conveying line right side is provided with box -dividing mechanism, the left side outside machine case is provided with man -machine operation interface, the utility model discloses through conveying line and carry out automatic bottle cap, and three detection mechanisms are to the whole bottle cap and carry out photographic detection, and the process does not need manual bottle cap and adjusts, realizes the automation operation of whole detection process.
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Description

Technical Field

[0001] This utility model belongs to the field of bottle cap production technology, specifically, it relates to a bottle cap appearance quality inspection system. Background Technology

[0002] In the bottle cap manufacturing industry, appearance quality inspection is a crucial step in ensuring product pass rates. Traditional manual inspection methods rely mainly on visual inspection or simple tools, which are not only inefficient but also susceptible to the subjective factors of operators, leading to high rates of missed and false inspections. This makes it difficult to meet the high-precision and high-efficiency quality control requirements of modern production lines. In recent years, with the development of machine vision technology, some companies have begun to use automated inspection equipment to replace manual labor, but existing technologies still have many shortcomings.

[0003] Chinese patent CN217342395U discloses a comprehensive online visual inspection system for bottle caps, including an inspection top base, an inspection base, and a control cabinet. Inspection frames are positioned at the four corners of the bottom of the inspection top base, and inspection cameras numbered one, two, three, and five are respectively installed on the four inspection frames. Inspection camera number six is ​​installed in the middle of the inspection top base, inspection camera number four is installed at the bottom of the inspection top base, and inspection camera number two is installed in the middle of the inspection base. While this prior art can perform multi-directional inspection of bottle caps using multiple inspection cameras, the entire inspection process requires manual intervention to flip and move the bottle caps, resulting in a low overall level of automation.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a bottle cap appearance quality inspection system, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A bottle cap appearance quality inspection system includes a waterfall-type capping machine, characterized in that a feeding device is provided on the left side of the waterfall-type capping machine, an air blowing component is provided at the rightmost end of the feeding device, a conveyor line is provided at the end of the feeding device, a machine box is provided on the rightmost side of the conveyor line, a cap-separating mechanism is provided on the left side of the conveyor line inside the machine box, a top vision device is provided on the right side of the cap-separating mechanism, a side vision inspection device is provided around the top vision device, a top suction conveyor line is provided on the right side of the top suction conveyor line, a box-separating mechanism is provided on the right side of the top suction conveyor line, a fan is provided on the back of the machine box, and a human-machine interface is provided on the left side of the outside of the machine box.

[0008] Optionally, the cap-separating mechanism is provided with cap-separating rubber wheels on both sides of the top of the conveyor line, and a motor is provided on the top of the cap-separating rubber wheels.

[0009] Optionally, a vision cover is fitted onto the outside of the top vision device, a bowl-shaped light source is provided on the top of the top vision device at the top of the conveyor line, a top industrial camera is installed inside the bowl-shaped light source, and a side industrial camera is installed near the top of the side vision inspection device.

[0010] Optionally, a bottom visual inspection device is provided at the bottom center of the top suction conveyor line, an aluminum profile is provided inside the top suction conveyor line, an air pipe is provided on one side of the aluminum profile, and a belt is sleeved on the surface of the aluminum profile.

[0011] Optionally, the rightmost end of the side visual inspection device is provided with a rejection nozzle one on one side of the conveyor line, the rejection nozzle one is provided with a front rejection bucket on the other side of the conveyor line, the rejection nozzle two is provided on one side of the conveyor line to the right of the bottom visual inspection device, and the rejection nozzle two is provided with a rear rejection bucket on the other side of the conveyor line.

[0012] Optionally, a spacing adjustment device is provided on the right side of the cover roller, and a height adjustment device is provided on the other side of the aluminum profile on the air pipe.

[0013] Optionally, a photoelectric sensor is installed above the sorting mechanism.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0015] 1. The bottle cap appearance quality inspection system automatically feeds the caps through a capping machine, and the conveyor line automatically transports them through top and side visual inspection devices for inspection. The top suction conveyor line picks up the bottom of the bottle caps to lift them up, and the bottom visual inspection device takes pictures for inspection. Defective products are rejected by rejection nozzles. Finally, the sorting mechanism completes the sorting and packaging. The process does not require manual adjustment of the bottle caps, realizing the automation of the entire inspection process.

[0016] 2. This bottle cap appearance quality inspection system, by setting up three visual inspection devices, can inspect bottle caps from multiple angles without blind spots, reducing the overall inspection error rate and more strictly controlling the quality of bottle caps. The entire inspection device is installed in the chassis and uses a self-adjustable light source to reduce the influence of external light sources and improve inspection accuracy.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the chassis of this utility model;

[0021] Figure 3 This is a schematic diagram of the interior of the chassis of this utility model from another perspective.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Waterfall-type cover-up machine; 2. Feeding device; 201. Air blowing component; 3. Conveyor line; 4. Cover-separating mechanism; 401. Motor; 402. Cover-separating rubber wheels; 403. Spacing adjustment device; 5. Top vision inspection device; 501. Vision cover; 502. Top industrial camera; 503. Bowl-shaped light source; 6. Side vision inspection device; 601. Side industrial camera; 602. Rejection air nozzle one; 603. Front rejection hopper; 7. Top suction conveyor line; 701. Bottom vision inspection device; 702. Air pipe; 703. Aluminum profile; 704. Height adjustment device; 705. Rejection air nozzle two; 706. Rear rejection hopper; 8. Box-separating mechanism; 801. Photoelectric sensor; 9. Human-machine interface; 10. Chassis.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Please see Figure 1-3 As shown, this embodiment provides a bottle cap appearance quality inspection system, including: a waterfall capping machine 1.

[0027] like Figure 1-3As shown, in this embodiment, a feeding device 2 is provided on the left side of the waterfall-type capping machine 1. An air blowing component 201 is provided at the rightmost end of the feeding device 2. A conveyor line 3 is provided at the end of the feeding device 2. A housing 10 is provided on the rightmost side of the conveyor line 3. A cap-separating mechanism 4 is provided on the left side of the conveyor line 3 inside the housing 10. A top vision device 5 is provided on the right side of the cap-separating mechanism 4. A side vision detection device 6 is provided around the top vision device 5. A top suction conveyor line 7 is provided on the right side of the top vision device 5. A box-separating mechanism 8 is provided on the right side of the top suction conveyor line 7. A fan is provided on the back of the housing 10. A human-machine interface 9 is provided on the left side of the exterior of the housing 10. The entire device is fed from the waterfall-type capping machine 1 to the feeding device 2. The air blowing component 201 on the feeding device 2 blows the bottle caps onto the conveyor line 3, which continuously conveys them into the cap-separating mechanism 4 inside the housing 10. The cap-separating mechanism 4 controls the spacing of the bottle caps on the conveyor line 3 to facilitate subsequent identification. Below the bowl-shaped light source 503 of the top vision inspection device 5, brightness is increased by illumination. The top industrial camera 502 inside the bowl-shaped light source 503 performs identification and detection. At the same time, the side vision devices 6 installed around the perimeter also perform detection through the side industrial cameras 601. The conveyor line 3 continues to transport the bottle cap to the lower left side of the top suction conveyor line 7. The conveyor line 3 disconnects at the bottom of the top suction conveyor line 7. The bottle cap is lifted by the suction of the top suction conveyor line 7. The bottom vision inspection device 701 at the bottom of the top suction conveyor line 7 can then take pictures and detect the bottom of the bottle cap. Then, the bottle cap is transported to the connecting sorting mechanism 8 through the top suction conveyor line 7. The sorting mechanism 8 adjusts and inputs the bottle cap into a pre-prepared packing box for storage. The entire detection device of the equipment is installed inside the housing 10 to prevent external light sources from interfering with the detection process. All detection results are transmitted to the human-machine interface next to it through data transmission. The operator can observe the detection status at any time.

[0028] like Figure 1-3 As shown, in this embodiment, the cap-separating mechanism 4 is provided with cap-separating rubber wheels 402 on both sides of the top of the conveyor line 3, and a motor 401 is provided on the top of the cap-separating rubber wheels 402. The cap-separating rubber wheels 402 are driven by the top motor 401. The speed difference between the cap-separating rubber wheels 402 and the conveyor line 3 is used to separate the bottle caps at equal intervals, thereby increasing the distance between each bottle cap and allowing the subsequent industrial camera to better identify them.

[0029] like Figure 1-3As shown, in this embodiment, a vision cover 501 is sleeved on the outside of the top vision device 5. A bowl-shaped light source 503 is set on the top of the top vision device 5 at the top of the conveyor line 3. A top industrial camera 502 is installed inside the bowl-shaped light source 503. A side vision inspection device 6 is installed near the top with a side industrial camera 601. The top industrial camera 502 and the side industrial camera 601 have the same structure and can both take pictures of the bottle caps that pass by and upload them. The side vision inspection device 6 is centered on the bowl-shaped light source 503 and has four evenly distributed parts. When the bottle cap is conveyed to the bottom of the bowl-shaped light source 503, the side industrial cameras 601 on the four side vision inspection devices 6 take pictures of the side of the bottle cap from four directions. The top industrial camera 502 inside the top bowl-shaped light source 503 takes pictures of the bottle cap from the top, realizing the detection of pictures around and on the top of the bottle cap. The overall picture is taken inside the vision cover 501, minimizing the influence of external light.

[0030] like Figure 1-3 As shown, in this embodiment, a bottom visual inspection device 701 is provided at the bottom center of the top suction conveyor line 7. An aluminum profile 703 is provided inside the top suction conveyor line 7. An air pipe 702 is provided on one side of the aluminum profile 703. A belt is sleeved on the surface of the aluminum profile 703. The belt is attached to the surface of the aluminum profile 703. A rotating shaft motor is provided at one end to drive the belt to rotate on the aluminum profile 703. Through the small hole opened on the belt, a connecting hole is opened at the bottom of the aluminum profile 703. The air pipe 702 draws air from the inside of the aluminum profile 703 to form a negative pressure. The air is attracted to the bottle cap through the small hole. The belt drives the bottle cap to move to the conveyor line 3 of the end boxing mechanism 8. When the bottle cap is lifted, the bottom is suspended in the air. The bottle cap passes over the top visual inspection device 701, and the inspection is completed.

[0031] like Figure 1-3 As shown, in this embodiment, the rightmost end of the side visual inspection device 6 is provided with a rejection nozzle 602 on one side of the conveyor line 3. The rejection nozzle 602 is provided with a front rejection hopper 603 on the other side of the conveyor line 3. The bottom visual inspection device 701 is provided with a rejection nozzle 705 on one side of the conveyor line 3 and a rear rejection hopper 706 on the other side of the conveyor line 3. When the top visual inspection device 5 and the side visual inspection device 6 detect defective products, the bottle caps are transported to the corresponding positions. The rejection nozzle 602 generates an instantaneous airflow that blows the bottle caps on the conveyor line 3 to the front rejection head 603 on the opposite side, and finally discharges them outside the machine housing 10. Similarly, the bottom visual inspection device 701 detects defective products and blows them into the rear rejection hopper 706 by the rejection nozzle 705, thus completing the discharge of defective products.

[0032] like Figure 1-3As shown, in this embodiment, a spacing adjustment device 403 is provided on the right side of the cap-separating roller 402, and a height adjustment device 704 is provided on the other side of the air pipe 702 on the aluminum profile 703. The spacing adjustment device 403 can adjust the spacing between the two cap-separating rollers 402 to allow different sizes of bottle caps to pass through, and the height adjustment device 704 can raise the entire conveyor line 3, thereby adjusting the height so that the bottom belt can fit bottle caps of different thicknesses for movement.

[0033] like Figure 1-3 As shown, a photoelectric sensor 801 is installed above the box-separating mechanism 8 in this embodiment. The photoelectric sensor 801 is connected to a counting sensor, which counts each qualified bottle cap that passes by, thereby recording the number of qualified bottle caps. Multiple sets of cardboard boxes are placed at the bottom of the box-separating mechanism 8. The angle of the internal baffle of the box-separating mechanism 8 is adjusted so that the bottle caps move to another cardboard box after the number of bottle caps in the cardboard box reaches a predetermined value, thereby achieving automatic box-separating operation.

[0034] Working principle: The detection system automatically feeds the bottle caps through the waterfall-type capping machine 1. The air blowing component 201 blows the bottle caps to the conveyor line 3 for automatic conveying. The bottle caps enter the machine box 10. First, the cap separating mechanism 4 automatically adjusts the spacing between each bottle cap. After being detected by the top and side visual inspection devices, the unqualified products are automatically blown into the front rejection hopper 603 through the rejection nozzle 1 and discharged. Then, the top suction conveyor line 7 picks up the bottle caps and lifts the bottom, so that the bottom visual inspection device 701 can take pictures of the bottom of the bottle cap for inspection. The unqualified products are then rejected by the rejection nozzle 2 705 and sent to the rear rejection hopper 706. Finally, the boxing mechanism 8 completes the boxing and packaging. The whole process does not require manual adjustment of the bottle caps, realizing the automation of the entire detection process.

[0035] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. Bottle cap appearance quality inspection system, including: A waterfall-type cover-up machine (1) is characterized in that a feeding device (2) is provided on the left side of the waterfall-type cover-up machine (1), an air blowing component (201) is provided at the rightmost end of the feeding device (2), a conveyor line (3) is provided at the end of the feeding device (2), a machine box (10) is provided on the rightmost side of the conveyor line (3), a cover-separating mechanism (4) is provided on the left side of the conveyor line (3) inside the machine box (10), a top vision device (5) is provided on the right side of the cover-separating mechanism (4), a side vision inspection device (6) is provided around the top vision device (5), a top suction conveyor line (7) is provided on the right side of the top suction conveyor line (7), a box-separating mechanism (8) is provided on the right side of the top suction conveyor line (7), a fan is provided on the back of the machine box (10), and a human-machine operation interface (9) is provided on the left side of the outside of the machine box (10).

2. The bottle cap appearance quality inspection system according to claim 1, characterized in that, The cap-splitting mechanism (4) is provided with cap-splitting rubber wheels (402) on both sides of the top of the conveyor line (3), and a motor (401) is provided on the top of the cap-splitting rubber wheels (402).

3. The bottle cap appearance quality inspection system according to claim 1, characterized in that, The top vision device (5) is fitted with a vision cover (501) on the outside. The top vision device (5) is located at the top of the conveyor line (3) and is equipped with a bowl-shaped light source (503). The bowl-shaped light source (503) is equipped with a top industrial camera (502) inside. The side vision inspection device (6) is equipped with a side industrial camera (601) near the top.

4. The bottle cap appearance quality inspection system according to claim 2, characterized in that, The top suction conveyor line (7) is provided with a bottom visual inspection device (701) at the center bottom. An aluminum profile (703) is provided inside the top suction conveyor line (7). An air pipe (702) is provided on one side of the aluminum profile (703). A belt is sleeved on the surface of the aluminum profile (703).

5. The bottle cap appearance quality inspection system according to claim 4, characterized in that, The rightmost end of the side visual inspection device (6) is provided with a first rejection nozzle (602) on one side of the conveyor line (3). The first rejection nozzle (602) is provided with a front rejection bucket (603) on the other side of the conveyor line (3). The second rejection nozzle (705) is provided on the right side of the bottom visual inspection device (701) on one side of the conveyor line (3). The second rejection nozzle (705) is provided with a rear rejection bucket (706) on the other side of the conveyor line (3).

6. The bottle cap appearance quality inspection system according to claim 4, characterized in that, A spacing adjustment device (403) is provided on the right side of the cover roller (402), and a height adjustment device (704) is provided on the other side of the air pipe (702) of the aluminum profile (703).

7. The bottle cap appearance quality inspection system according to claim 4, characterized in that, An electric sensor (801) is installed above the box-separating mechanism (8).