Device and method for detecting foreign matters in white spirit bottle
By clamping and shaking the liquor bottle and combining it with spectral imaging technology, the problems of low efficiency and low accuracy in detecting foreign objects inside liquor bottles have been solved, achieving efficient and reliable foreign object identification.
Patent Information
- Application Number
- CN202511798492.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-02-13
AI Technical Summary
Existing methods for detecting foreign objects inside liquor bottles are inefficient and lack precision, making it difficult to identify tiny foreign objects that have settled at the bottom of the bottle or are attached to the bottle body. Furthermore, the reliance on manual detection results in insufficient sensitivity and reliability.
The system uses a clamping mechanism to hold the liquor bottle and shake it left and right. It combines a spectral imaging module and an image processing module for detection. A spectral camera moves on an electric slide rail to collect image information in multiple spectral bands. An alarm module is also used to alert staff.
It improves the accuracy and reliability of foreign object detection inside liquor bottles, reduces human intervention, and increases detection efficiency and sensitivity, enabling the identification of tiny foreign objects that are similar in color to liquor.
Smart Images
Figure CN121514162A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of liquor testing technology, and in particular to a device and method for detecting foreign objects inside liquor bottles. Background Technology
[0002] During the production and bottling of baijiu (Chinese liquor), foreign objects such as fibers, small insects, hair, paper scraps, glass shards, or plastic fragments are difficult to completely avoid entering the bottles due to factors such as the cleanliness of packaging materials, incomplete filtration of the liquor, inadequate bottle cleaning, damage caused by the sealing machine crushing the bottle mouth, or unsanitary conditions at the production site. Therefore, it is necessary to detect foreign objects in baijiu bottles. Currently, foreign object detection in baijiu mainly relies on manual visual inspection, specifically including inspections on the packaging production line and random checks by quality inspectors. On the packaging production line, inspectors mainly rely on inspectors to examine the bottles from top to bottom using a liquor analyzer, carefully observing whether the liquor is clear and transparent and whether there are any obviously visible foreign objects. Random checks by quality inspectors involve inspectors randomly selecting 5 bottles of semi-finished liquor from the production line, placing them upright to allow the bubbles to dissipate, and then using a horizontal, inverted, and vertical inspection method to check the sample liquid for foreign objects every hour.
[0003] Current detection methods have shortcomings. Single-vision inspection is easily affected by factors such as the color and transparency of the liquor itself, leading to low detection accuracy and difficulty in accurately identifying tiny foreign objects or those similar in color to the liquor. Furthermore, existing methods are highly reliant on manual labor, resulting in low efficiency, high visual acuity requirements, and subjectivity and randomness. This leads to low sensitivity, low work efficiency, and low reliability of results, failing to meet the high-efficiency and precise quality inspection needs of modern liquor production. With technological advancements, some solutions have emerged that utilize visual imaging technology to detect foreign objects in liquor bottles. These solutions primarily involve photographing the bottle, processing the image, and then using pre-defined algorithms and models to determine the presence, type, and location of foreign objects. However, most current methods only inspect stationary liquor bottles, making it difficult to identify foreign objects settled at the bottom or attached to the bottle, thus requiring further improvement in detection accuracy. Summary of the Invention
[0004] To overcome the aforementioned shortcomings of existing foreign object detection methods for liquor bottles, the technical problem to be solved by this invention is to provide a highly efficient and reliable foreign object detection device and method for liquor bottles.
[0005] The technical solution adopted by this invention to solve its technical problem is: The foreign object detection device for liquor bottles includes a conveying mechanism and a visual inspection mechanism mounted on the conveying mechanism. A clamping mechanism is located in front of the visual inspection mechanism on the conveying mechanism. The clamping mechanism includes two electric push rods respectively positioned on both sides of the conveying mechanism. The telescopic ends of the electric push rods face the center of the conveying mechanism and are equipped with clamping plates at their telescopic ends. The controller of the clamping mechanism is configured such that when a liquor bottle on the conveying mechanism passes through the clamping mechanism, the two clamping plates close towards the center to clamp the liquor bottle. The two electric push rods then work together to move the liquor bottle rapidly back and forth along the width of the conveying mechanism for a period of time before releasing the bottle. Afterward, the liquor bottle undergoes foreign object detection through the visual inspection mechanism.
[0006] Furthermore, the conveying mechanism includes a frame and a conveyor belt mounted on the frame, as well as a motor mounted on the frame to drive the conveyor belt to move. The electric push rods of the clamping mechanism are mounted on the frame on both sides of the conveyor belt.
[0007] Furthermore, the length direction of the clamp is parallel to the length direction of the conveyor belt, and a rubber pad is provided on the side of the clamp facing the conveyor belt.
[0008] Furthermore, the electric actuator is an electric actuator with force feedback.
[0009] Furthermore, the visual inspection mechanism includes a support frame and a spectral imaging module mounted on the support frame, as well as a control module and an image processing module electrically connected to the spectral imaging module, with the spectral imaging module facing the conveying mechanism from top to bottom.
[0010] Furthermore, the spectral imaging module includes a light source assembly disposed on the top of the support frame, a filter assembly disposed at the bottom of the light source assembly, an electric slide rail disposed below the light source assembly along the width direction of the conveying mechanism, and a spectral camera disposed on the sliding seat of the electric slide rail.
[0011] Furthermore, the top of the support frame is also equipped with an alarm module that is electrically connected to the control module.
[0012] Furthermore, the alarm module includes a sounder and an alarm light.
[0013] The method for detecting foreign objects inside liquor bottles employs the aforementioned foreign object detection device. First, the liquor bottle is conveyed along the conveyor mechanism to the area where the clamping plates are located. Then, an electric push rod controls the two clamping plates to close towards the center, clamping the liquor bottle. At this point, the conveyor mechanism stops operating, and the two electric push rods extend and retract synchronously, alternating to move the liquor bottle back and forth several times along the width of the conveyor mechanism. Then, the two clamping plates return to the center of the conveyor mechanism, releasing the liquor bottle. The conveyor mechanism continues operating until the preceding liquor bottle reaches directly below the spectral imaging module. The conveyor mechanism stops again, and the spectral camera moves along the electric slide rail to perform spectral imaging detection on the liquor bottle. Simultaneously, the two clamping plates clamp the following liquor bottle and move it back and forth. When the preceding liquor bottle completes the spectral imaging detection, the clamping plates simultaneously release the following liquor bottle, thus achieving continuous operation of shaking the liquor bottle before detection.
[0014] Furthermore, the length of the clamp and the distance between the liquor bottles should meet the requirement that the liquor bottles held by the clamp are symmetrically arranged with the vertical axis of the middle of the clamp as the axis of symmetry.
[0015] The beneficial effects of this invention are as follows: by setting a clamping mechanism in front of the visual inspection mechanism to clamp the wine bottle and shake it rapidly from side to side before sending it into the visual inspection mechanism for foreign object detection, the foreign object inside the bottle can be moved and detached from the bottom or body of the bottle before detection, thereby improving the detection accuracy of subsequent image recognition. In addition, shaking the wine bottle from side to side will not produce wine bubbles in the bottle, which will not affect the detection of foreign objects, thus improving the reliability and efficiency of foreign object detection in liquor. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial schematic diagram of the visual inspection mechanism of the present invention.
[0017] The diagram is labeled as follows: 1-Conveying mechanism, 2-Vision inspection mechanism, 3-Clamping mechanism, 11-Frame, 12-Conveyor belt, 13-Motor, 21-Support frame, 22-Spectral imaging module, 23-Control module, 24-Image processing module, 25-Alarm module, 31-Electric push rod, 32-Clamping plate, 221-Light source assembly, 222-Filter assembly, 223-Electric slide rail, 224-Sliding seat, 225-Spectral camera, 251-Sound generator, 252-Alarm light. Detailed Implementation
[0018] The invention will be further described below with reference to the accompanying drawings.
[0019] It should be noted that if this invention uses directional terms such as up, down, left, right, front, and back, these are for describing the relative positions of components and are not specific references to the absolute positions of related components or the relationships between them. They are only used to explain the relative positional relationships and movements of components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. If this invention uses terms related to quantity such as "many," "multiple," or "several," these specifically refer to two or more.
[0020] like Figure 1 As shown, the present invention provides a foreign object detection device for liquor bottles, including a conveying mechanism 1 and a visual inspection mechanism 2 mounted on the conveying mechanism 1. The conveying mechanism 1 is provided with a clamping mechanism 3 in front of the visual inspection mechanism 2. The clamping mechanism 3 includes two electric push rods 31 respectively disposed on both sides of the conveying mechanism 1. The telescopic ends of the electric push rods 31 face the middle of the conveying mechanism 1 and are provided with clamping plates 32 at the telescopic ends. The controller of the clamping mechanism 3 is configured such that when a liquor bottle on the conveying mechanism 1 passes through the clamping mechanism 3, the two clamping plates 32 close together to clamp the liquor bottle in the middle, and the two electric push rods 31 telescopically cooperate to drive the liquor bottle to move back and forth quickly several times along the width direction of the conveying mechanism 1 before releasing the liquor bottle. After that, the liquor bottle passes through the visual inspection mechanism 2 for foreign object detection. Compared to existing solutions that directly perform image recognition on completely still liquor, this invention first clamps the liquor bottle with two clamps 32, and then uses two electric push rods 31 to move the liquor bottle back and forth along the width of the conveying mechanism in a synchronous alternating motion. This causes the liquor in the bottle to shake, and foreign objects inside the bottle to move and detach from the bottom or body of the bottle. Finally, when passing through the visual inspection mechanism 2, it is easier to identify whether there are foreign objects in the liquor, thereby improving the accuracy of visual inspection.
[0021] To facilitate the movement of the liquor bottles on the conveying mechanism 1 by the clamping mechanism 3, the conveying mechanism 1 is preferably a planar belt conveyor, including a frame 11 and a conveyor belt 12 mounted on the frame 11, and a motor 13 mounted on the frame 11 to drive the conveyor belt 12. The electric push rod 31 of the clamping mechanism 3 is mounted on the frame 11 on both sides of the conveyor belt 12. To facilitate the clamping and shaking of multiple liquor bottles at once, the clamping plate 32 can be set as a long strip, with its length direction parallel to the length direction of the conveyor belt 12. In addition, to improve the stability of the clamping plate 32 in clamping the liquor bottles, a rubber pad is provided on the side of the clamping plate 32 facing the conveyor belt 12. In order to achieve good clamping effect on liquor bottles of different shapes, the electric push rod 31 is preferably an electric push rod with force feedback. During the clamping process, the electric push rod 31 judges the clamping force through its own force feedback system. By setting reasonable parameters, it can be ensured that the electric push rod 31 can stably clamp liquor bottles of various shapes and sizes. In addition, the conveying mechanism 1 needs to be a flat belt conveyor that limits and stabilizes the width direction of the conveyor belt 12 and has a low coefficient of friction, so as to avoid the conveyor belt 12 shaking due to friction when the liquor bottle moves in the width direction, thereby affecting the image acquisition of the liquor bottle being inspected.
[0022] For the visual inspection mechanism 2, the preferred embodiment of the present invention is as follows: Figure 2 As shown, the visual inspection mechanism 2 includes a support frame 21 and a spectral imaging module 22 mounted on the support frame 21, as well as a control module 23 and an image processing module 24 electrically connected to the spectral imaging module 22. The spectral imaging module 22 faces the conveying mechanism 1 from top to bottom. The spectral imaging module 22 is used to extract and collect image information from the liquor bottle and transmit the image information to the image processing module 24. The image processor 24 preprocesses the received image, such as denoising and enhancement, and then uses a preset algorithm or model to determine whether there are foreign objects in the liquor and the shape, color, texture, and location of the foreign objects. The image processing module 24 transmits the analysis results to the control module 23. If a foreign object is detected, the control module 23 controls the conveying mechanism 1 to stop operating and alerts the staff to handle it. If no foreign object is detected, the conveying mechanism 1 operates normally. There are many existing implementations of algorithms and models for identifying foreign objects, which are common knowledge to those skilled in the art. This application only involves hardware improvements; the software and control program are only adjusted according to actual needs.
[0023] Furthermore, to better acquire image information of the liquor bottle, the spectral imaging module 22 includes a light source assembly 221 mounted on top of the support frame 21, a filter assembly 222 at the bottom of the light source assembly 221, and an electric slide rail 223 positioned below the light source assembly 221 along the width direction of the conveying mechanism 1. A spectral camera 225 is mounted on the sliding seat 224 of the electric slide rail 223. Using the spectral camera 225 to acquire image information of the liquor inside the bottle in multiple spectral bands allows for accurate identification of foreign objects of different materials, colors, and shapes. It can detect minute foreign objects and foreign objects with colors similar to the liquor, effectively overcoming the problem of interference from the characteristics of the liquor itself in traditional visual inspection, greatly improving the sensitivity and reliability of the detection results. Since the spectral camera 225 has a limited shooting range, and most bottles are already capped when performing foreign object detection, the spectral camera 225 is mounted on the electric slide rail 223 to capture an image of the entire interior of the liquor bottle. During testing, the sliding seat 224 of the electric slide rail 223 drives the spectroscopic camera 225 to move along the width direction of the conveying mechanism 1. Since the field of view of the spectroscopic camera 225 is a conical space, the spectroscopic camera 225 can acquire image information of the entire liquor bottle when moving on the electric slide rail 223. It can also adapt to liquor bottles of different sizes and shapes, thus improving the applicability of the invention. The light source assembly 221 is used to provide light with high intensity and high spectral consistency, and the filter assembly 222 is used to uniformly diffuse the light. Both facilitate the spectroscopic camera 225 in acquiring image information under different spectral bands.
[0024] When the visual inspection agency 2 detects a foreign object in the liquor bottle, in order to remind the staff to deal with it as soon as possible, an alarm module 25 electrically connected to the control module 23 is also provided on the top of the support frame 21. The alarm module 25 includes a sounder 251 and an alarm light 252, which can provide both sound and light information to facilitate the staff to quickly identify and react.
[0025] When using the aforementioned foreign object detection device for liquor bottles, this invention also provides a method for detecting foreign objects inside liquor bottles. The specific steps are as follows: First, the liquor bottle is transported along the conveying mechanism 1 to the area where the clamping plate 32 is located. Then, the electric push rod 31 controls the two clamping plates 32 to close towards the center, clamping the liquor bottle. At this time, the conveying mechanism 1 stops running, and the two electric push rods 31 extend and retract synchronously and alternately, driving the liquor bottle to move back and forth several times along the width direction of the conveying mechanism 1. Then, the two clamping plates 32 return to the center of the conveying mechanism 1, releasing the liquor bottle. The conveying mechanism 1 continues to run until the liquor bottle in front reaches directly below the spectral imaging module 22. The conveying mechanism 1 stops again, and the spectral camera 225 moves along the electric slide rail 223 to perform spectral imaging detection on the liquor bottle. At the same time, the two clamping plates 32 clamp the liquor bottle behind again and move back and forth. When the liquor bottle in front completes the spectral imaging detection, the clamping plates 32 simultaneously release the liquor bottle behind, thereby realizing continuous operation of shaking the liquor bottle before detection. To increase the number of shakes on the liquor bottle, the clamp 32 can be made slightly longer. The length of the clamp 32 and the spacing between the liquor bottles should ensure that the bottles held by the clamp are symmetrically arranged about the vertical axis of the middle of the clamp 32. For example, if the clamp 32 holds three liquor bottles simultaneously, one bottle will be located in the middle of the clamp 32, and the other two will be symmetrically positioned on either side of the middle bottle. Because the liquor bottles on the production line are evenly spaced, each bottle will be clamped and shaken three times as it passes through the clamp 32. This ensures that foreign objects in the bottle are removed from the bottom or body, thus improving the reliability of foreign object detection.
Claims
1. A device for detecting foreign matter in a liquor bottle, comprising a conveying mechanism (1) and a visual detection mechanism (2) arranged on the conveying mechanism (1), characterized in that: The part in front of the visual detection mechanism (2) of the conveying mechanism (1) is provided with a clamping mechanism (3), the clamping mechanism (3) includes two electric push rods (31) respectively arranged on both sides of the conveying mechanism (1), the telescopic end of the electric push rod (31) faces the middle part of the conveying mechanism (1), and the telescopic end is provided with a clamping plate (32); the controller of the clamping mechanism (3) is configured to, when the white wine bottle on the conveying mechanism (1) passes through the clamping mechanism (3), the two clamping plates (32) are folded to the middle part to clamp the white wine bottle, and the white wine bottle is driven to move back and forth along the width direction of the conveying mechanism (1) several times through the telescopic cooperation of the two electric push rods (31), so that the white wine in the bottle shakes, and then the white wine bottle is loosened, and the white wine bottle is detected by the visual detection mechanism (2).
2. The foreign substance detection device for a liquor bottle according to claim 1, wherein: The conveying mechanism (1) includes a rack (11) and a conveyor belt (12) arranged on the rack (11), and a motor (13) installed on the rack (11) to drive the conveyor belt (12) to move, and the electric push rod (31) of the clamping mechanism (3) is installed on the rack (11) on both sides of the conveyor belt (12).
3. The foreign substance detecting apparatus for a liquor bottle according to claim 2, wherein: The length direction of the clamping plate (32) is parallel to the length direction of the conveyor belt (12), and the side of the clamping plate (32) facing the conveyor belt (12) is provided with a rubber pad.
4. The foreign substance detecting apparatus for a liquor bottle according to claim 1, wherein: The electric push rod (31) is a force feedback electric push rod.
5. The foreign substance detecting apparatus for a liquor bottle according to any one of claims 1 to 4, wherein The visual detection mechanism (2) includes a support frame (21) and a spectral imaging module (22) arranged on the support frame (21), and a control module (23) and an image processing module (24) electrically connected with the spectral imaging module (22), and the spectral imaging module (22) faces the conveying mechanism (1) from top to bottom.
6. The foreign substance detecting apparatus for a liquor bottle according to claim 5, wherein: The spectral imaging module (22) includes a light source assembly (221) arranged on the top of the support frame (21), the bottom of the light source assembly (221) is provided with a filter assembly (222), and the lower side of the light source assembly (221) is provided with an electric sliding rail (223) arranged along the width direction of the conveying mechanism (1), and the sliding seat (224) of the electric sliding rail (223) is provided with a spectral camera (225).
7. The foreign substance detecting apparatus for a liquor bottle according to claim 5, wherein: The top of the support frame (21) is further provided with an alarm module (25) electrically connected with the control module (23).
8. The foreign substance detecting apparatus for a liquor bottle according to claim 7, wherein: The alarm module (25) includes a sounder (251) and an alarm lamp (252).
9. A method for detecting foreign matter in a liquor bottle, characterized by: The liquor bottle foreign matter detection device as claimed in claim 6 is used, the liquor bottle is first conveyed to the area where the clamping plate (32) is located along the conveying mechanism (1), then the electric push rod (31) controls the two clamping plates (32) to be folded to the middle part, the liquor bottle is clamped, at this time, the conveying mechanism (1) stops running, the two electric push rods (31) are synchronously and alternately operated, the liquor bottle is moved back and forth along the width direction of the conveying mechanism (1) several times, then the two clamping plates (32) return to the middle part of the conveying mechanism (1), the liquor bottle is loosened, the conveying mechanism (1) continues to run until the front liquor bottle reaches the position directly below the spectral imaging module (22), the conveying mechanism (1) stops again, the spectral camera (225) moves along the electric slide rail (223), the liquor bottle is detected by spectral imaging, at the same time, the two clamping plates (32) clamp the rear liquor bottle again, the liquor bottle is moved back and forth, when the front liquor bottle is detected by spectral imaging, the clamping plate (32) loosens the rear liquor bottle at the same time, so that the continuous operation of the liquor bottle is realized.
10. The method of claim 9, wherein the method is characterized by: The length of the clamping plate (32) and the spacing between the liquor bottle satisfy that the liquor bottle clamped by the clamping plate (32) is symmetrically arranged forward and backward with the vertical axis in the middle part of the clamping plate (32) as the symmetry axis.