Device for detecting micro cracks of bottle body
By using a bottle microcrack detection device and a cavity ring-down system to monitor air pressure changes, the problems of low efficiency and low accuracy in detecting microcracks in wine bottles have been solved, achieving efficient and automated microcrack detection and improving product quality control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-10
AI Technical Summary
Existing technologies cannot efficiently and accurately detect micro-cracks in wine bottles, resulting in low detection efficiency and low accuracy, and failing to identify some minute defects.
The device employs a microcrack detection system for bottles, which includes an air inlet pipe, a sealing gasket, and an optical cavity ring-down system. It detects microcracks by monitoring changes in air pressure inside the bottle and uses the optical cavity ring-down system to achieve high-precision and high-sensitivity defect detection.
It achieves efficient and automated microcrack detection, improves detection accuracy, can quantitatively identify small-sized cracks, facilitates bottle screening, improves product utilization, and prevents defective products from entering the market.
Smart Images
Figure CN223985834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product quality testing technology, specifically to a device for detecting microcracks in bottle bodies. Background Technology
[0002] In the liquor industry, leakage from glass bottles used to package baijiu (Chinese liquor) can have adverse effects on food safety and corporate brand image. Therefore, leak detection of liquor bottles is one of the key aspects of quality control in the liquor industry.
[0003] Conventional methods of adding liquid to the bottle and allowing it to stand to detect leaks are inefficient and lack precision, with some minor defects going undetected. Furthermore, microcracks on wine bottles, within a certain size range, do not affect the normal use of the product; existing detection methods, due to their low precision, cannot effectively and efficiently detect these microcracks. Utility Model Content
[0004] To overcome the existing technical problem of lacking effective means for detecting microcracks in bottles, this utility model provides a device for detecting microcracks in wine bottles.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] The bottle microcrack detection device is used for defect detection of bottles. It includes an air inlet pipe, a sealing gasket, and an optical cavity ring-down system. The air inlet pipe passes through the sealing gasket and has an air inlet channel inside. The optical cavity ring-down system is connected to the air inlet pipe. In use, the sealing gasket seals the bottle opening of the bottle to be tested. One end of the air inlet pipe connected to the optical cavity ring-down system and the optical cavity ring-down system are inserted into the bottle. The air inlet channel can connect the inside and outside of the bottle.
[0007] The principle of this patent is that the optical cavity ring-down system establishes the relationship between the gas pressure inside the bottle and the cavity loss, thereby achieving high-precision and high-sensitivity monitoring of gas pressure changes and obtaining the defect size of the bottle.
[0008] This application proposes a bottle microcrack detection device, which has the advantages of high automation, high detection accuracy and high detection efficiency. Based on its high detection accuracy, it can quantify small-sized cracks in the bottle, which facilitates the screening and use of the bottle, optimizes and improves product utilization, and prevents products with usage defects from entering the market.
[0009] In some embodiments, the optical cavity ring-down system includes a laser source, a straight ring-down cavity, and a photodetector chip, with the laser source and the photodetector chip disposed opposite each other on both sides of the straight ring-down cavity.
[0010] In some embodiments, the cavity loss of the straight-type ring-down cavity is ≤10ppm.
[0011] In some embodiments, the photodetector chip has a response bandwidth of 1 MHz or more.
[0012] In some embodiments, a gas pressurization device is provided at the outlet of the air inlet channel at one end of the air inlet pipe connected to the optical cavity ring decay system.
[0013] The beneficial effects of this utility model are:
[0014] This application proposes a bottle microcrack detection device, which has the advantages of high automation, high detection accuracy and high detection efficiency. Based on its high detection accuracy, it can quantify small-sized cracks in the bottle, which facilitates the screening and use of the bottle, optimizes and improves product utilization, and prevents products with usage defects from entering the market. Attached Figure Description
[0015] Figure 1 A schematic diagram of the bottle microcrack detection device provided by this utility model;
[0016] Figure 2 A schematic diagram of the optical cavity ring-down system in the bottle microcrack detection device provided by this utility model.
[0017] The diagram is labeled as follows: 1-Inlet pipe, 2-Sealing gasket, 3-Gas pressurization device, 4-Optical cavity ring decay system, 41-Laser source, 42-Straight ring decay cavity, 43-Photoelectric detection chip, 5-Inlet channel. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings.
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0020] Combination Figure 1 and Figure 2 As shown, this utility model provides a device for detecting microcracks in bottle bodies.
[0021] A bottle microcrack detection device is used for defect detection of bottles. It includes an air inlet pipe 1, a sealing gasket 2, and an optical cavity ring-down system 4. The air inlet pipe 1 is installed through the sealing gasket 2 and has an air inlet channel 5. The optical cavity ring-down system 4 is connected to the air inlet pipe 1. In use, the sealing gasket 2 seals the bottle opening of the bottle to be tested. One end of the air inlet pipe 1 is connected to the optical cavity ring-down system 4 and the optical cavity ring-down system 4 is inserted into the bottle. The air inlet channel 5 can connect the inside and outside of the bottle.
[0022] The principle of this patent is: the optical cavity ring-down system 4 establishes the relationship between the gas pressure inside the bottle and the cavity loss, thereby achieving high-precision and high-sensitivity monitoring of gas pressure changes and obtaining the defect size of the bottle.
[0023] This application proposes a bottle microcrack detection device, which has the advantages of high automation, high detection accuracy and high detection efficiency. Based on its high detection accuracy, it can quantify small-sized cracks in the bottle, which facilitates the screening and use of the bottle, optimizes and improves product utilization, and prevents products with usage defects from entering the market.
[0024] like Figure 2 As shown, in this embodiment, the optical cavity ring-down system 4 includes a laser source 41, a straight ring-down cavity 42, and a photoelectric detection chip 43. The laser source 41 and the photoelectric detection chip 43 are arranged opposite each other on both sides of the straight ring-down cavity 42.
[0025] The laser source 41 here is a 635nm semiconductor laser source 41.
[0026] In this embodiment, the straight-type ring decay cavity 42 has low loss in the 620nm-680nm band, with cavity loss ≤10ppm; the photoelectric detection chip 43 has a response bandwidth of more than 1MHz.
[0027] The optical cavity ring-down system 4 is mainly divided into three types: straight cavity, folded cavity, and annular cavity. The straight cavity consists of only two cavity mirrors, while the folded cavity and annular cavity both contain three or more cavity mirrors. Considering the bottle space, bottle mouth size, and the fact that the optical cavity ring-down system 4 needs to extend into the bottle body through the bottle mouth, the straight ring-down cavity 42 is preferred here.
[0028] In this embodiment, a gas pressurization device 3 is provided at the outlet of the gas inlet channel 5 at one end of the gas inlet pipe 1 that connects to the optical cavity ring-down system 4. This device is used to pressurize the gas inside the bottle.
[0029] The method of using the bottle microcrack detection device in the above embodiments includes the following steps:
[0030] S1: Insert the optical cavity ring decay system 4 into the bottle body and achieve the sealing of the bottle opening by the sealing gasket 2;
[0031] S2: Inject gas into the bottle through the gas inlet channel 5;
[0032] S3: Use the optical cavity ring-down system 4 to monitor the internal air pressure of the bottle;
[0033] S4: Estimate the defect size of the bottle based on the internal air pressure monitoring results.
[0034] In this embodiment, step S2 is: injecting gas into the bottle through the gas inlet channel 5 to form a positive pressure of +1% to +5% relative to the standard gas pressure.
[0035] Specifically, this is achieved here through the aforementioned gas pressurization device 3.
[0036] In this embodiment, step S0 is included before step S1;
[0037] S0: Calibrate the relationship between the internal pressure detection curve of the bottle and the defect size of the bottle. The calibration object is the relationship between the defect size and the rate of change of gas pressure.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bottle micro crack detection device for defect detection of a bottle, characterized by, It comprises an air inlet pipeline (1), a sealing gasket (2) and a light cavity ring-down system (4), the air inlet pipeline (1) is arranged through the sealing gasket (2), an air inlet channel (5) is arranged in the air inlet pipeline (1), and the light cavity ring-down system (4) is connected with the air inlet pipeline (1); In use, the sealing gasket (2) seals the bottle mouth of the bottle body to be measured, one end of the air inlet pipeline (1) connected with the light cavity ring-down system (4) is inserted into the bottle body, and the air inlet channel (5) can communicate the inside and outside of the bottle body.
2. The bottle microcraze detection apparatus of claim 1, wherein The light cavity ring-down system (4) comprises a laser light source (41), a straight type ring-down cavity (42) and a photoelectric detection chip (43), the laser light source (41) and the photoelectric detection chip (43) are oppositely arranged on the two sides of the straight type ring-down cavity (42).
3. The bottle microflaw detection apparatus as defined in claim 2 wherein, The cavity loss of the straight type ring-down cavity (42) is less than or equal to 10 ppm.
4. The bottle microflaw detection apparatus as defined in claim 2, wherein The photoelectric detection chip (43) has a response bandwidth of more than 1 MHz.
5. The bottle microflaw detection apparatus according to any one of claims 1 to 4, wherein A gas pressurizing device (3) is arranged at the outlet of the air inlet channel (5) of the air inlet pipeline (1) connected with the light cavity ring-down system (4).