Visual defect detection device for packaging bottle production line

Abstract

This utility model discloses a visual defect detection device for a packaging bottle production line, relating to the technical field of visual inspection in industrial production lines. The present invention aims to solve the problem that existing visual defect detection devices cannot distinguish defects in unqualified packaging bottles. The present invention includes a conveyor belt, with a visual inspection mechanism installed at the input end of the conveyor belt. A three-stage diversion mechanism is also provided on the conveyor belt, with each of the three diversion mechanisms located downstream of the visual inspection mechanism and arranged sequentially along the conveying direction of the conveyor belt. Each diversion mechanism includes a main conveying path, a branch conveying path, and a pusher. The branch conveying path is connected to the main conveying path, and the output end of the pusher is positioned directly opposite the connection between the branch conveying path and the main conveying path to push the packaging bottle from the main conveying path into the branch conveying path. The pusher is electrically connected to the visual inspection mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of visual inspection of industrial production lines, and specifically to a visual defect detection device for a packaging bottle production line. Background Technology

[0002] A bottle packaging production line refers to a complete set of automated or semi-automated production equipment systems, specifically designed for the continuous production process of handling empty bottles, filling, sealing, labeling, testing, and finally packaging them into finished products.

[0003] Visual defect detection devices are a core technology in modern industrial automated production, especially playing a key role in quality control on packaging bottle production lines, enabling high-speed, high-precision, non-contact automatic detection of product appearance defects.

[0004] Visual defect detection devices are commonly used in the inspection process of packaging bottles on production lines. These devices inspect bottles for defects such as the presence or absence of a cap, whether the cap is tightened properly, whether the solution level inside the bottle is within acceptable limits, the completeness of the label's design, and the presence or absence of a label itself. Visual defect detection devices differentiate between qualified and unqualified bottles on the production line.

[0005] However, because the defects in the non-conforming packaging bottles vary, they need to be further categorized before repair. This involves differentiating them based on defects in the cap, label, and liquid contents to allow for targeted repairs. Current visual defect detection devices can only distinguish between acceptable and unacceptable bottles, not further differentiate between unconforming ones. Therefore, repair workers must perform this re-categorization process, significantly reducing repair efficiency. Utility Model Content

[0006] To address the aforementioned problem—that existing visual defect detection devices cannot distinguish defects in unqualified bottles—this invention proposes a visual defect detection device for a packaging bottle production line. The device includes a conveyor belt, with a visual inspection mechanism installed at the input end of the conveyor belt. A three-stage diversion mechanism is also provided on the conveyor belt, with each of the three diversion mechanisms located downstream of the visual inspection mechanism and arranged sequentially along the conveying direction of the conveyor belt. Each diversion mechanism includes a main conveying path, a branch conveying path, and a pusher. The branch conveying path is connected to the main conveying path, and the output end of the pusher is positioned directly opposite the connection between the branch conveying path and the main conveying path to push the bottles from the main conveying path into the branch conveying path. The pusher is electrically connected to the visual inspection mechanism.

[0007] A further feature of this invention is that the visual inspection mechanism includes a mounting frame connected to the support of the conveyor belt and positioned above the conveyor belt. A visual inspection probe is mounted on each of the two side columns of the mounting frame, and the visual inspection probes are positioned facing the conveyor belt. The output end of the visual inspection probe is electrically connected to a control module, and the output end of the control module is electrically connected to the three actuators.

[0008] A further feature of this invention is that the transmission branch is connected to the main transmission route via an inclined connecting route, and the transmission branch is arranged parallel to the main transmission route.

[0009] A further feature of this invention is that a collection box is installed inside the transmission branch, the end of the collection box near the connecting road is open, and the bottom plate of the collection box near the connecting road is wedge-shaped.

[0010] A further feature of this invention is that the two side plates of the collection box are also wedge-shaped at the end closest to the connecting road.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. By setting up a three-stage separation mechanism, it is possible to distinguish between packaging bottles with different defects. That is, the visual inspection mechanism transmits the photos of the packaging bottles to the control module. The control module outputs different control signals based on the photo information, that is, controls the pusher to remain stationary or controls a certain pusher to move, so as to push the corresponding defective packaging bottle into the designated conveying branch, thereby realizing the distinction between packaging bottles with different defects.

[0013] 2. Installing a collection box in the conveyor branch allows for the centralized arrangement of identified defective packaging bottles. Then, by simply removing the collection box, the defective packaging bottles can be taken out of the conveyor branch, making it easier to uniformly repair defective packaging bottles.

[0014] 3. The bottom plate and side plates of the collection box are wedge-shaped, which allows the packaging bottles to be pushed into the collection box more smoothly and avoids the packaging bottles getting stuck in the collection box. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of this utility model is shown.

[0016] Figure 2 A magnified view of a portion at point A is shown.

[0017] Figure 3 A top view of the present invention is shown.

[0018] Figure 4 A schematic diagram of the collection box is shown.

[0019] Reference numerals: 1. Conveyor belt; 2. Vision inspection mechanism; 21. Mounting frame; 22. Vision inspection probe; 3. Diversion mechanism; 31. Main conveyor path; 32. Branch conveyor path; 33. Pusher; 34. Connecting path; 4. Collection box. Detailed Implementation

[0020] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] This utility model proposes a visual defect detection device for a packaging bottle production line, including a conveyor belt 1, on which a visual inspection mechanism 2 is installed to perform photographic inspection of the packaging bottles on the conveyor belt 1. The conveyor belt 1 is also provided with a three-level diversion mechanism 3, which is located downstream of the visual inspection mechanism 2 and is arranged sequentially along the conveying direction of the conveyor belt 1.

[0022] The diversion mechanism 3 includes a main conveyor path 31, a branch conveyor path 32, and a pusher 33. The main conveyor path 31 and the branch conveyor path 32 are connected. It should be noted that the main conveyor path 31 and the branch conveyor path 32 are composed of baffles, which are connected to the support of the conveyor belt 1 by bolts and screws. The pusher 33 is a pneumatic telescopic cylinder. The output end of the pusher 33 is connected to a push plate, which is positioned directly opposite the connection between the main conveyor path 31 and the branch conveyor path 32. That is, the pusher 33 can push the packaging bottles in the main conveyor path 31 into the branch conveyor path 32, thereby achieving the function of separating the packaging bottles.

[0023] It should also be noted that the three main transmission routes 31 of the three-level diversion mechanism 3 are connected in sequence, that is, two adjacent main transmission routes 31 are connected to each other.

[0024] The visual inspection mechanism 2 includes a mounting frame 21, which is U-shaped and is upside down on the conveyor belt 1. Both ends of the mounting frame 21 are welded to the side supports of the conveyor belt 1. A visual inspection probe 22 is installed on each of the two side columns of the mounting frame 21. Both visual inspection probes 22 are installed on the inside of the columns and are oriented towards the conveyor belt 1.

[0025] The output of the visual inspection probe 22 is electrically connected to a control module. The control module is a PLC programmable controller. The output of the control module is electrically connected to the input of the three actuators 33 respectively. The control module identifies defects based on the image signal captured by the visual inspection probe 22 and outputs control signals to different actuators 33 according to the defect type to control the actuators 33 to operate.

[0026] Specific control process: If no defect is detected, the control module does not output a signal, and the three pushers 33 remain stationary. At this time, the packaging bottle will be conveyed sequentially along the three main conveyor paths 31.

[0027] If the control module detects that the bottle is missing a cap or the cap is not tightened, it will output a control signal to the first-stage pusher 33. The first-stage pusher 33 will then start to operate, pushing the corresponding bottle into the first-stage conveyor branch 32.

[0028] Similarly, if the liquid level in the packaging bottle is detected to be below the standard, the control module controls the second-stage pusher 33 to actuate and push the corresponding packaging bottle into the second-stage conveyor branch 32.

[0029] Similarly, if an incomplete label pattern or no label is detected, the control module controls the third-stage pusher 33 to actuate, pushing the corresponding packaging bottle into the third-stage conveyor branch 32.

[0030] It should be noted that if the packaging bottle has multiple defects at the same time, the first actuating pusher 33 will push it into the corresponding conveying branch 32. That is, if the packaging bottle has both a cap problem and a liquid level problem, the packaging bottle will be pushed into the first-level conveying branch 32.

[0031] The transmission branch 32 is set parallel to the main transmission route 31. The input end of the transmission branch 32 is connected to the inclined connecting route 34. The other end of the connecting route 34 is connected to the main transmission route 31, that is, the main transmission route 31 and the transmission branch 32 are connected through the connecting route 34.

[0032] A collection box 4 is installed inside the conveyor branch 32. The end of the collection box 4 near the connecting road 34 is open, and the top of the collection box 4 is also open. The bottom plate of the collection box 4 is in contact with the upper surface of the conveyor belt 1. However, a limit block is provided inside the conveyor branch 32. The limit block is located at the rear end of the collection box 4 to block the collection box 4 and prevent it from moving with the conveyor belt 1. In this way, when the packaging bottle is conveyed into the conveyor branch 32 along the connecting road 34, the packaging bottle will be pushed into the collection box 4, thereby realizing the unified collection of the packaging bottle. The collected packaging bottle can be transferred by simply removing the collection box 4 from the conveyor branch 32.

[0033] It should be noted that a wedge-shaped ramp is provided at the end of the bottom plate of the collection box 4 near the connecting road 34, and the wedge-shaped ramps are also provided at the end of the two side plates of the collection box 4 near the connecting road 34. This can prevent the packaging bottle from getting stuck with the bottom plate or side plate of the collection box 4.

[0034] In summary, this utility model, by setting up a three-stage separation mechanism, can achieve the purpose of distinguishing packaging bottles with different defects. Specifically, the visual inspection mechanism 2 transmits the photographed packaging bottle to the control module, and the control module outputs different control signals based on the photograph information, that is, controlling the pusher 33 to remain stationary or controlling a certain pusher 33 to move, so as to push the corresponding defective packaging bottle into the designated conveying branch 32, thereby achieving the distinction between packaging bottles with different defects.

[0035] Installing a collection box 4 inside the conveyor branch 32 allows for the centralized arrangement of identified defective packaging bottles. Then, by simply removing the collection box 4, the defective packaging bottles can be taken out of the conveyor branch 32, making it easier to uniformly repair the defective packaging bottles.

[0036] The bottom plate and side plates of the collection box 4 are wedge-shaped, which allows the packaging bottle to be pushed into the collection box 4 more smoothly and avoids the packaging bottle getting stuck in the collection box 4.

[0037] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0038] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0041] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A visual defect detection device for a packaging bottle assembly line, comprising a conveying belt (1), a visual detection mechanism (2) being installed at the input end of the conveying belt (1), characterized in that: The conveyor belt (1) is also provided with a three-level diversion mechanism (3). The three-level diversion mechanism (3) is located downstream of the visual inspection mechanism (2) and the three-level diversion mechanism (3) is arranged sequentially along the conveying direction of the conveyor belt (1). The diversion mechanism (3) includes a main conveying path (31), a branch conveying path (32) and a pusher (33). The branch conveying path (32) is connected to the main conveying path (31). The output end of the pusher (33) is set at the connection between the branch conveying path (32) and the main conveying path (31) to push the packaging bottle from the main conveying path (31) into the branch conveying path (32). The pusher (33) is electrically connected to the visual inspection mechanism (2).

2. The visual defect detection apparatus of a packaging bottle line according to claim 1, characterized in that: The visual inspection mechanism (2) includes a mounting frame (21), which is connected to the support of the conveyor belt (1) and is positioned above the conveyor belt (1). A visual inspection probe (22) is installed on each of the two side columns of the mounting frame (21), and the visual inspection probe (22) is positioned facing the conveyor belt (1). The output end of the visual inspection probe (22) is electrically connected to a control module, and the output end of the control module is electrically connected to the three pushers (33).

3. The visual defect detection apparatus of a packaging bottle line according to claim 1, characterized in that: The transmission branch (32) is connected to the main transmission road (31) via an inclined connecting road (34), and the transmission branch (32) is arranged parallel to the main transmission road (31).

4. The visual defect detection apparatus of a packaging bottle line according to claim 3, characterized in that: A collection box (4) is installed inside the transmission branch (32). The collection box (4) is open at one end near the connecting road (34), and its bottom plate is wedge-shaped at one end near the connecting road (34).

5. The visual defect detection apparatus for a packaging bottle line according to claim 4, characterized in that: The two side plates of the collection box (4) are also wedge-shaped at the end near the connecting road (34).

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