An automatic detection and rejection device for defective packaging bottles

Abstract

This invention belongs to the technical field of packaging production lines, specifically relating to an automatic detection and rejection device for defective packaging bottles. It includes a conveying mechanism, a bottle cap detection mechanism, and an aluminum foil detection mechanism. The bottle cap detection mechanism comprises a first support, a bottle cap detection component, and a first sorting component. The first support is fixedly connected to the first conveying component, and the bottle cap detection component and the first sorting component are slidably mounted on the first support. The aluminum foil detection mechanism comprises a second support, an aluminum foil detection component, and a second sorting component, with the aluminum foil detection component and the second sorting component slidably mounted on the second support. This invention, through the cooperation of the bottle cap detection component and the first sorting component of the bottle cap detection mechanism, can remove packaging bottles with high-top caps or crooked caps from properly assembled packaging bottles and push them onto different conveying components for transport to a reprocessing area for reprocessing. This eliminates the need for manual sorting and transportation, resulting in high production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of packaging production line technology, specifically relating to an automatic detection and rejection device for defective packaging bottles. Background Technology

[0002] In the production of bottled products, capping machines are used to automatically install bottle caps onto the packaging bottles. However, when tightening bottle caps mechanically, errors in the capping machine and non-standard cylindrical shapes of the packaging bottles can lead to situations where the caps are installed too high or crooked. Crooked or high caps not only affect the overall appearance of the product, but also cause the contents of the bottle to deteriorate or leak due to contact with air.

[0003] To address the issue of crooked or oversized caps on bottled products, current technologies typically involve using detection equipment to remove bottles with crooked or oversized caps from the production line. Another method is to invert the bottles during packaging after production and manually inspect them to remove any leaking bottles with crooked or oversized caps. While this method can separate bottles with crooked or oversized caps from those with properly fitted caps, the latter require reprocessing. The reprocessing methods for crooked and oversized caps differ, and existing detection equipment cannot simultaneously remove these bottles and separate them. Furthermore, bottles with properly fitted caps may still have caps without aluminum foil or with more than one layer of aluminum foil inside.

[0004] Therefore, it is necessary to study an automatic detection and rejection device for defective packaging bottles that can automatically detect and separate packaging bottles with properly installed caps from those with crooked or oversized caps. At the same time, the device should also reject packaging bottles with caps that do not have aluminum foil inside or have multiple sheets of aluminum foil inside the caps. Summary of the Invention

[0005] To address the aforementioned shortcomings in the existing technology, the present invention provides an automatic detection and rejection device for defective packaging bottles, which solves the problem that the existing technology cannot separate bottles with crooked or high caps while rejecting them.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An automatic detection and rejection device for defective packaging bottles includes: a conveying mechanism, a bottle cap detection mechanism, and an aluminum foil detection mechanism;

[0008] The conveying mechanism includes: a first conveying component, a second conveying component, a third conveying component, a fourth conveying component, a first conveying plate, a second conveying plate, and a third conveying plate. The first conveying component, the second conveying component, the third conveying component, and the fourth conveying component are arranged in parallel. The first conveying component and the second conveying component are connected by the first conveying plate. The first conveying component and the third conveying component are connected by the second conveying plate. The first conveying component and the fourth conveying component are connected by the third conveying plate.

[0009] The bottle cap detection mechanism includes: a first bracket, a bottle cap detection component, and a first sorting component. The first bracket is fixedly connected to a first conveying component. The bottle cap detection component and the first sorting component are slidably mounted on the first bracket. The height of the bottle cap detection component corresponds to the height of a normally capped packaging bottle. The position of the first sorting component corresponds to the position of the first conveying plate and the second conveying plate. The first sorting component can push a misaligned bottle to the second conveying component via the first conveying plate. The first sorting component can also push a high-capped bottle to the third conveying component via the second conveying plate.

[0010] The aluminum foil detection mechanism includes: a second support, an aluminum foil detection component, and a second sorting component. The aluminum foil detection component and the second sorting component are slidably mounted on the second support. The position of the second sorting component corresponds to the third conveyor plate. The second sorting component can push packaging bottles with properly installed caps but without aluminum foil padding inside the caps, or with more than one layer of aluminum foil padding, to the fourth conveying component via the third conveyor plate.

[0011] Furthermore, first limiting rods are provided on both sides of the first conveying component.

[0012] Furthermore, the first bracket includes a first light rod, which is fixedly mounted on the first bracket. The bottle cap detection component includes a first mounting bracket, a central height limiting component, a first edge height limiting component, and a second edge height limiting component. The first mounting bracket is slidably mounted on the first light rod, and the first edge height limiting component, the central height limiting component, and the second edge height limiting component are slidably mounted on the first mounting bracket in sequence.

[0013] Furthermore, the central height restriction assembly is equipped with a first height restriction plate and a corner sensor. The first height restriction plate is hinged to the central height restriction assembly, and the corner sensor is fixedly connected to the central height restriction assembly. The rotation shaft of the corner sensor is fixedly connected to the first height restriction plate.

[0014] Furthermore, the first edge height limiting component is provided with a second height limiting plate and a limit switch. The second height limiting plate is hinged to the first edge height limiting component, and the limit switch is fixedly connected to the first edge height limiting component. The flipping of the second height limiting plate can trigger the limit switch to engage.

[0015] Furthermore, the structure of the second edge height limiting component is the same as that of the first edge height limiting component.

[0016] Furthermore, the first sorting component includes: a second mounting bracket, a first push rod, and a second push rod. The second mounting bracket is slidably mounted on the first light rod, and the first push rod and the second push rod are fixedly mounted on the second mounting bracket. The first push rod is located below the bottle cap detection mechanism.

[0017] Furthermore, the aluminum foil detection assembly includes a third mounting bracket and an aluminum foil detection probe. The third mounting bracket is slidably mounted on the second optical rod, and the aluminum foil detection probe is mounted on the third mounting bracket.

[0018] Furthermore, the second sorting component includes a fourth mounting bracket and a third push rod, wherein the fourth mounting bracket is fixedly connected to the third mounting bracket, and the third push rod is fixedly mounted on the end face of the fourth mounting bracket near the first conveying component.

[0019] Furthermore, a second limiting rod is provided on the first conveyor plate, a third limiting rod is provided on the second conveyor plate, and a fourth limiting rod is provided on the third conveyor plate.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The present invention discloses an automatic detection and rejection device for defective packaging bottles. Through the cooperation of the bottle cap detection component and the first sorting component of the bottle cap detection mechanism, packaging bottles with high caps or crooked caps can be rejected from the properly installed packaging bottles and pushed to different conveying components for transportation to the reprocessing area for reprocessing. No manual sorting and transportation are required, resulting in high production efficiency.

[0022] 2. The present invention discloses an automatic detection and rejection device for defective packaging bottles. Through the aluminum foil detection component and the second sorting component of the aluminum foil detection mechanism, packaging bottles with normal cap installation but no aluminum foil inside the cap or with more than one layer of aluminum foil can be pushed to other conveying components, resulting in high detection efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0025] Figure 3 This is a schematic diagram of the bottle cap detection component.

[0026] The reference numerals used in the attached figures are as follows:

[0027] 11. First conveying assembly; 111. First limiting rod; 12. Second conveying assembly; 13. Third conveying assembly; 14. Fourth conveying assembly; 15. First conveying plate; 151. Second limiting rod; 16. Second conveying plate; 161. Third limiting rod; 17. Third conveying plate; 171. Fourth limiting rod; 21. First bracket; 211. First light rod; 221. First mounting bracket; 222. Central height limiting assembly; 2221. First height limiting plate; 2222. Angle sensor; 223. First edge height limiting assembly; 2231. Second height limiting plate; 2232. Limit switch; 224. Second edge height limiting assembly; 231. Second mounting bracket; 232. First push rod; 233. Second push rod; 31. Second bracket; 311. Second light rod; 321. Third mounting bracket; 322. Aluminum foil detection probe; 331. Fourth mounting bracket; 332. Third push rod. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0030] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0031] Please see Figures 1 to 3 As shown, an automatic detection and rejection device for defective packaging bottles includes: a conveying mechanism for conveying packaging bottles, a bottle cap detection mechanism for detecting and sorting misaligned and high-cap packaging bottles, and an aluminum foil detection mechanism for detecting whether there is aluminum foil missing or excessive aluminum foil inside the bottle cap.

[0032] The conveying mechanism includes: a first conveying assembly 11, a second conveying assembly 12, a third conveying assembly 13, a fourth conveying assembly 14, a first conveying plate 15, a second conveying plate 16, and a third conveying plate 17. The first conveying assembly 11, the second conveying assembly 12, the third conveying assembly 13, and the fourth conveying assembly 14 are arranged in parallel. Specifically, first limiting rods 111 are provided on both sides of the first conveying assembly 11. The first conveying assembly 11 and the second conveying assembly 12 are connected by the first conveying plate 15, the first conveying assembly 11 and the third conveying assembly 13 are connected by the second conveying plate 16, and the first conveying assembly 11 and the fourth conveying assembly 14 are connected by the third conveying plate 17.

[0033] The bottle cap detection mechanism includes: a first support 21, a bottle cap detection component, and a first sorting component. The first support 21 is fixedly connected to the first conveying component 11. The bottle cap detection component and the first sorting component are slidably mounted on the first support 21. The height of the bottle cap detection component corresponds to the height of a normally installed bottle cap on a packaging bottle. Specifically, the first support 21 includes a first light rod 211, which is fixedly mounted on the first support 21. The bottle cap detection component includes: a first mounting bracket 221, a central height limiting component 222, a first edge height limiting component 223, and a second edge height limiting component 224. The first mounting bracket 221 is slidably mounted on the first light rod 211. The first edge height limiting component 223, the central height limiting component 222, and the second edge height limiting component 224 are sequentially slidably mounted on the first mounting bracket 221. It can be understood that the first edge height limiting component 223 and the second edge height limiting component 224 are located on both sides of the central height limiting component 222, and the distance between them and the central height limiting component 222 can be adjusted by sliding to accommodate the detection of bottle caps of different sizes.

[0034] The central height limiting component 222 is equipped with a first height limiting plate 2221 and an angle sensor 2222. The first height limiting plate 2221 is hinged to the central height limiting component 222, and the angle sensor 2222 is fixedly connected to the central height limiting component 222. The rotation axis of the angle sensor 2222 is fixedly connected to the first height limiting plate 2221. This means that when a bottle with a properly fitted cap moves forward under the drive of the first conveying component 11 and passes under the central height limiting component 222, the cap does not contact the first height limiting plate 2221. When a bottle with a high cap passes through the central height limiting component 222, it will contact the first height limiting plate 2221, pushing the first height limiting plate 2221 towards... When the bottle is flipped upwards, the first height limit plate 2221 flips, causing the rotation shaft of the angle sensor 2222 to rotate and measure the change in the flip angle of the first height limit plate 2221 in real time. If the bottle cap is not fully tightened and there is no tilting in the front-back direction, the flip angle of the first height limit plate 2221 will not change during the process from the lower end of the first height limit plate 2221 contacting the upper surface of the bottle cap until the first height limit plate 2221 slides off the bottle cap. However, when a bottle with a crooked cap passes under the central height limit component 222 and the bottle cap is tilted in the front-back direction, the flip angle of the first height limit plate 2221 will continuously change during the process from the lower end of the first height limit plate 2221 contacting the bottle cap until the first height limit plate 2221 slides off the bottle cap. By detecting the change in the flip angle of the first height limit plate 2221 by the angle sensor 2222, it is possible to determine whether there is a high cap or a crooked cap tilted in the front-back direction.

[0035] The first edge height limiting component 223 is provided with a second height limiting plate 2231 and a limit switch 2232. The second height limiting plate 2231 is hinged to the first edge height limiting component 223, and the limit switch 2232 is fixedly connected to the first edge height limiting component 223. Flipping the second height limiting plate 2231 can trigger the limit switch 2232 to engage. Specifically, the structure of the second edge height limiting component 224 is the same as that of the first edge height limiting component 223. This can be understood as follows: when a bottle with a properly installed cap moves forward under the drive of the first conveying component 11 and passes under the first edge height limiting component 223 and the second edge height limiting component 224, the cap just does not contact the second height limiting plate of the first edge height limiting component 223 and the second edge height limiting component 224; when a bottle with a crooked cap passes under the first edge height limiting component 223 and the second edge height limiting component 224, and the cap of the bottle is tilted in the left and right direction, the first edge height limiting component 223 and the second edge height limiting component 224 contact the cap, causing the second height limiting plate 2231 to flip upward and trigger the limit switch 2232, thereby determining whether there is a crooked cap tilted in the left and right direction.

[0036] The first sorting component is positioned corresponding to the first conveyor plate 15 and the second conveyor plate 16. Specifically, the first sorting component includes: a second mounting bracket 231, a first push rod 232, and a second push rod 233. The second mounting bracket 231 is slidably mounted on the first guide rod 211. The first push rod 232 and the second push rod 233 are fixedly mounted on the second mounting bracket 231. The first push rod 232 is located below the bottle cap detection mechanism. This can be understood as follows: when a misaligned cap occurs, including misaligned caps tilted to the left and right or to the front and back, the first sorting component can push the misaligned bottle to the second conveying component 12 via the first conveyor plate 15; the first sorting component can push the high-cap bottle to the third conveying component 13 via the second conveyor plate 16.

[0037] The aluminum foil detection mechanism includes a second support 31, an aluminum foil detection component, and a second sorting component. The aluminum foil detection component and the second sorting component are slidably mounted on the second support 31. Specifically, the aluminum foil detection component includes a third mounting bracket 321 and an aluminum foil detection probe 322. The third mounting bracket 321 is slidably mounted on the second guide rod 311, and the aluminum foil detection probe 322 is mounted on the third mounting bracket 321. This means that when a bottle without a high cap or a crooked cap moves forward under the drive of the first conveying component 11, it passes under the aluminum foil detection probe 322. The aluminum foil detection probe 322 can detect whether the bottle cap is not padded with aluminum foil or whether multiple pieces of aluminum foil are padded.

[0038] The position of the second sorting component corresponds to the third conveyor plate 17. Specifically, the second sorting component includes a fourth mounting bracket 331 and a third push rod 332. The fourth mounting bracket 331 is fixedly connected to the third mounting bracket 321. The third push rod 332 is fixedly installed on the end face of the fourth mounting bracket 331 near the first conveyor component 11. It can be understood that the second sorting component can push packaging bottles with normal cap installation but no aluminum foil inside the cap or with more than one layer of aluminum foil inside the cap to the fourth conveyor component 14 through the third conveyor plate 17.

[0039] The first conveyor plate 15 is also provided with a second limiting rod 151, the second conveyor plate 16 is also provided with a third limiting rod 161, and the third conveyor plate 17 is also provided with a fourth limiting rod 171.

[0040] The above descriptions are merely embodiments of the present invention. Commonly known structures and characteristics of the solutions are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. An automatic detection and rejection device for defective packaging bottles, characterized in that, include: Conveying mechanism, bottle cap inspection mechanism, and aluminum foil inspection mechanism; The conveying mechanism includes: a first conveying component (11), a second conveying component (12), a third conveying component (13), a fourth conveying component (14), a first conveying plate (15), a second conveying plate (16), and a third conveying plate (17). The first conveying component (11), the second conveying component (12), the third conveying component (13), and the fourth conveying component (14) are arranged in parallel. The first conveying component (11) and the second conveying component (12) are connected by the first conveying plate (15). The first conveying component (11) and the third conveying component (13) are connected by the second conveying plate (16). The first conveying component (11) and the fourth conveying component (14) are connected by the third conveying plate (17). The bottle cap detection mechanism includes: a first bracket (21), a bottle cap detection component and a first sorting component. The first bracket (21) is fixedly connected to the first conveying component (11). The bottle cap detection component and the first sorting component are slidably installed on the first bracket (21). The height of the bottle cap detection component corresponds to the packaging bottle with a normal bottle cap. The position of the first sorting component corresponds to the first conveying plate (15) and the second conveying plate (16). The first sorting component pushes the packaging bottle with a crooked cap to the second conveying component (12) through the first conveying plate (15). The first sorting component pushes the packaging bottle with a high cap to the third conveying component (13) through the second conveying plate (16). The aluminum foil detection mechanism includes: a second bracket (31), an aluminum foil detection component and a second sorting component. The aluminum foil detection component and the second sorting component are slidably mounted on the second bracket (31). The position of the second sorting component corresponds to the third conveying plate (17). The second sorting component pushes the packaging bottles with normal cap installation but no aluminum foil inside the cap or with more than one layer of aluminum foil inside the cap to the fourth conveying component (14) through the third conveying plate (17). The bottle cap detection assembly includes a central height limiting assembly (222), a first edge height limiting assembly (223), and a second edge height limiting assembly (224). The central height limiting assembly (222) detects the change in the flip angle of the first height limiting plate (2221) through a rotation sensor (2222) to distinguish between high caps and front and rear tilted caps. The first edge height limiting assembly (223) and the second edge height limiting assembly (224) trigger a limit switch (2232) through the second height limiting plate (2231) to distinguish between left and right tilted caps. The first conveyor plate (15) is also provided with a second limiting rod (151), the second conveyor plate (16) is also provided with a third limiting rod (161), and the third conveyor plate (17) is also provided with a fourth limiting rod (171). The first bracket (21) includes a first light rod (211), which is fixedly mounted on the first bracket (21). The bottle cap detection assembly includes a first mounting bracket (221), a central height limiting assembly (222), a first edge height limiting assembly (223), and a second edge height limiting assembly (224). The first mounting bracket (221) is slidably mounted on the first light rod (211), and the first edge height limiting assembly (223), the central height limiting assembly (222), and the second edge height limiting assembly (224) are slidably mounted on the first mounting bracket (221) in sequence. The central height limiting component (222) is provided with a first height limiting plate (2221) and a rotation sensor (2222). The first height limiting plate (2221) is hinged to the central height limiting component (222), and the rotation sensor (2222) is fixedly connected to the central height limiting component (222). The rotation shaft of the rotation sensor (2222) is fixedly connected to the first height limiting plate (2221). The first edge height limiting component (223) is provided with a second height limiting plate (2231) and a limit switch (2232). The second height limiting plate (2231) is hinged to the first edge height limiting component (223), and the limit switch (2232) is fixedly connected to the first edge height limiting component (223). The second height limiting plate (2231) can trigger the limit switch (2232) to cooperate when it is flipped. The structure of the second edge height limiting component (224) is the same as that of the first edge height limiting component (223).

2. The automatic detection and rejection device for defective packaging bottles according to claim 1, characterized in that: The first conveying assembly (11) is provided with first limiting rods (111) on both sides.

3. The automatic detection and rejection device for defective packaging bottles according to claim 1, characterized in that: The first sorting component includes: a second mounting bracket (231), a first push rod (232), and a second push rod (233). The second mounting bracket (231) is slidably mounted on the first light rod (211). The first push rod (232) and the second push rod (233) are fixedly mounted on the second mounting bracket (231). The first push rod (232) is located below the bottle cap detection mechanism.

4. The automatic detection and rejection device for defective packaging bottles according to claim 1, characterized in that: The aluminum foil detection assembly includes a third mounting bracket (321) and an aluminum foil detection probe (322). The third mounting bracket (321) is slidably mounted on the second optical rod (311), and the aluminum foil detection probe (322) is mounted on the third mounting bracket (321).

5. The automatic detection and rejection device for defective packaging bottles according to claim 4, characterized in that: The second sorting component includes a fourth mounting bracket (331) and a third push rod (332). The fourth mounting bracket (331) is fixedly connected to the third mounting bracket (321), and the third push rod (332) is fixedly mounted on the end face of the fourth mounting bracket (331) near the first conveying component (11).

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