An aluminum foil seal thermal imaging detection device
The aluminum foil sealing thermal imaging inspection device automatically detects the integrity of aluminum foil seals, solving the limitations of traditional manual sampling inspection. It enables efficient and comprehensive product inspection and automatic sorting, improving inspection efficiency and brand trust.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SSUZHOU ZFUNG AUTOMATION TECH
- Filing Date
- 2025-04-25
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional manual sampling inspection methods cannot achieve a comprehensive inspection of each product, resulting in unreliable product quality, increased recall risks, and potential reduction in brand trust.
An aluminum foil sealing thermal imaging detection device is adopted, which uses a thermal imager and trigger sensor to automatically detect the integrity of the aluminum foil seal. The results are analyzed by the control terminal, and the qualified and unqualified products are automatically sorted by the rejection mechanism, reducing manual intervention.
It enables comprehensive automated testing of each product, improving testing efficiency, reducing labor intensity and product recall risks, and enhancing brand trust.
Smart Images

Figure CN224542397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial machine vision inspection technology, specifically to an aluminum foil sealing thermal imaging inspection device. Background Technology
[0002] In modern manufacturing and packaging industries, plastic bottles are widely used due to their advantages such as light weight, low cost, and ease of processing, especially in the packaging of pharmaceuticals, food, and beverages. For packaging sensitive products such as pharmaceuticals, plastic bottles are usually covered with an additional plastic cap after the aluminum foil seal, providing extra protection and sealing. While this double-seal design improves product safety, it also presents challenges for inspection, as the aluminum foil seal is hidden under the plastic cap, making it difficult to access using traditional testing methods and hindering a direct visual inspection of the integrity and sealing of the aluminum foil seal.
[0003] Currently, traditional testing methods mainly rely on manual sampling. While this method can assess product quality to some extent, its randomness and limitations prevent it from comprehensively inspecting every product. Manual sampling typically covers only a small portion of products, meaning that most products have not undergone rigorous quality testing. This increases the risk of product recalls and may also lead to a decline in consumer trust in the brand. Utility Model Content
[0004] The purpose of this invention is to provide a thermal imaging detection device for aluminum foil sealing, in order to solve the problem that the traditional detection method mentioned in the background art mainly relies on manual sampling inspection. Although this method can evaluate product quality to a certain extent, it cannot achieve a comprehensive inspection of each product due to its randomness and limitations.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an aluminum foil sealing thermal imaging detection device, comprising a strip plate, a sealing device fixedly connected to the top of one side of two strip plates, and a support leg fixedly connected to the bottom of the strip plate, wherein a detection mechanism and a rejection mechanism are respectively provided on the two strip plates;
[0006] The detection mechanism includes a drive shaft and a driven shaft rotatably connected between adjacent surfaces of two strip plates, and a U-shaped plate fixedly connected to the top. A thermal imager and a trigger sensor are fixedly installed on the inner wall of the U-shaped plate, respectively. A control terminal is fixedly installed on the outer wall of the strip plates through a support plate. One end of the drive shaft passes through the outer wall of the strip plate and is fixedly connected to a transmission motor through a coupling. Transmission rollers are fixedly sleeved on the outer walls of both the drive shaft and the driven shaft, and a conveyor belt is connected between the two transmission rollers.
[0007] The present invention is further configured as follows: the rejection mechanism includes a guide strip fixedly connected to the outer wall of the strip plate, a strip block fixedly connected to the outer wall of another strip plate, a T-shaped partition block provided in the middle of the side of the adjacent surfaces of the two strip plates away from the sealing device, and a limit groove opened on the top of the strip block. A rejection motor is fixedly installed on the top of the strip block. The rejection motor is fixedly connected to a threaded rod through a coupling. The other end of the threaded rod is rotatably connected to a support frame through a bearing, and a moving block is threadedly connected to the outer wall of the threaded rod. The support frame is fixedly connected to the top of the strip block. A support block is fixedly connected to the top of the moving block. An electric telescopic column is fixedly connected to the outer wall of the support block. A push block is fixedly connected to the other end of the electric telescopic column.
[0008] Using the above technical solution, the guide strip guides the inspected workpiece to one side of the conveyor belt, where it continues to be conveyed. The control terminal starts the rejection motor, which drives the threaded rod to rotate. Under the constraint of the limit groove, the moving block is moved to the appropriate position. Then, the control terminal extends the electric telescopic column, which moves the push block. The push block pushes the defective products to the other side of the conveyor belt. With the isolation effect of the T-shaped partition, qualified and unqualified products exit through different channels on the conveyor belt, achieving the purpose of sorting. This replaces manual sorting, greatly reducing the workload of workers and significantly improving work efficiency.
[0009] The present invention is further configured such that the transmission motor is fixedly mounted on the outer wall of the strip plate via a motor frame.
[0010] Using the above technical solution, the conveyor motor provides the power source for conveying the workpiece. The conveyor motor is a servo motor, which can control the speed.
[0011] The present invention is further configured such that the thermal imager and the trigger sensor are respectively installed on the top and side wall of the inner cavity of the U-shaped plate, and the positions of the thermal imager and the trigger sensor are aligned.
[0012] By adopting the above technical solution, when the trigger sensor detects the workpiece, the trigger sensor will transmit a signal to the control terminal, which will then control the thermal imager to take a picture of the top of the workpiece. The captured thermal image data will then be transmitted to the control terminal for analysis to determine whether it is qualified.
[0013] The present invention is further configured such that: an L-shaped rod is fixedly connected to the bottom of the T-shaped partition, and the other end of the L-shaped rod is fixedly sleeved on the outer wall of the support leg.
[0014] Using the above technical solution, the L-shaped rod mainly supports the T-shaped partition. The T-shaped partition is close to the surface of the conveyor belt, but does not contact the surface of the conveyor belt.
[0015] The present invention is further configured such that the top of the strip block and the bottom of the moving block are slidably connected by a limiting groove.
[0016] By adopting the above technical solution, the limiting groove restricts the movement of the moving block to move along the threaded rod without rotating, thus ensuring the normal operation of the rejection mechanism.
[0017] The present invention is further configured such that: the control terminal is provided with a control module, a processing module and a control panel respectively, and the control terminal is connected to the sealing device, thermal imager, trigger sensor, conveyor motor, rejection motor and electric telescopic column through wiring.
[0018] Using the above technical solution, the control terminal is the control core of the entire device. The processing module is responsible for receiving signals from the trigger sensor and comparing the thermal images taken by the thermal imager with the built-in database to determine whether the workpiece to be tested is qualified. The control module is responsible for driving the sealing device, thermal imager, conveyor motor, rejection motor, and electric telescopic column. The control panel is responsible for the human-computer interaction channel, controlling the start and stop of the entire device, parameter setting, and visualization of the test results.
[0019] This invention provides a thermal imaging detection device for aluminum foil sealing. It has the following advantages:
[0020] (1) This utility model uses a transmission motor to drive the drive shaft to rotate, and the drive shaft drives the transmission roller to rotate. With the cooperation of the driven shaft, the transmission roller on the outer wall of the driven shaft and the conveyor belt, the workpiece is moved. When it moves to the bottom of the sealing device, the control terminal controls the transmission motor to stop rotating and controls the sealing device to seal the workpiece. After sealing, the transmission motor is controlled to rotate again to continue moving the sealed workpiece. When it moves to the trigger sensor, it transmits the signal to the control terminal. The control terminal controls the thermal imager to take a picture of the workpiece to be tested. Then the thermal imager transmits the data to the control terminal, and the processing module in the control terminal judges the result. This replaces manual visual inspection, greatly improves the efficiency of inspection, reduces labor intensity, and allows for a comprehensive inspection of each product in a shorter time, thereby reducing the risk of product recall and increasing trust in the brand.
[0021] (2) This utility model uses the guiding action of the guide strip to move the processed parts after inspection to one side of the conveyor belt and continue to be conveyed on the conveyor belt. The control terminal will control the rejection motor to start, and the rejection motor will drive the threaded rod to rotate. Under the restriction of the limit groove, the moving block will be moved to a suitable position. Then the control terminal will control the electric telescopic column to extend, and drive the push block to move. The push block will push the unqualified defective products to the other side of the conveyor belt. Under the isolation action of the T-shaped partition, qualified and unqualified products will be conveyed on the conveyor belt and exit from different channels to achieve the purpose of sorting. It replaces manual sorting, greatly reduces the workload of workers, and greatly improves work efficiency. Attached Figure Description
[0022] Figure 1 This is a perspective view of the present utility model;
[0023] Figure 2 This is a top view of the present invention;
[0024] Figure 3 This is an isometric perspective view of the present invention;
[0025] Figure 4 This is a control framework diagram of the device of this utility model;
[0026] Figure 5 This is a flowchart of the operation of the device of this utility model.
[0027] In the diagram: 1. Strip plate; 2. Sealing device; 3. Detection mechanism; 31. U-shaped plate; 32. Thermal imager; 33. Trigger sensor; 34. Control terminal; 35. Conveyor motor; 36. Rotating shaft; 37. Driven shaft; 38. Conveyor belt; 4. Rejection mechanism; 41. Guide bar; 42. T-shaped partition; 43. Strip block; 44. Limiting groove; 45. Rejection motor; 46. Threaded rod; 47. Moving block; 48. Support block; 49. Electric telescopic column; 410. Push block. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] like Figure 1-5As shown, this utility model provides a technical solution: an aluminum foil sealing thermal imaging detection device, including a strip plate 1, a sealing device 2 fixedly connected to the top of one side of two strip plates 1, and a support leg fixedly connected to the bottom of the strip plate 1. The two strip plates 1 are respectively provided with a detection mechanism 3 and a rejection mechanism 4.
[0030] The inspection mechanism 3 includes a drive shaft 36 and a driven shaft 37 rotatably connected between the adjacent surfaces of two strip plates 1, and a U-shaped plate 31 fixedly connected to the top. A thermal imager 32 and a trigger sensor 33 are fixedly installed on the inner wall of the U-shaped plate 31. The thermal imager 32 and the trigger sensor 33 are respectively installed on the top and side walls of the inner cavity of the U-shaped plate 31, and their positions are aligned. This facilitates the transmission of a signal from the trigger sensor 33 to the control terminal 34 when it detects a workpiece. The control terminal 34 then controls the thermal imager 32 to take a picture of the top of the workpiece and transmits the captured thermal imaging data to the control terminal 34 for analysis to determine if it is qualified. The control terminal 34 is fixedly installed on the outer wall of the strip plate 1 via a support plate. The control terminal 34 contains a control module, a processing module, and a control panel. The control terminal 34 is connected to the sealing device 2, the thermal imager 32, the trigger sensor 33, the conveyor motor 35, and the rejection motor 45. The electric telescopic column 49 is connected by a line. The control terminal 34 is the control core of the entire device. The processing module is responsible for receiving the signal from the trigger sensor 33 and processing the thermal image taken by the thermal imager 32 and comparing it with the internal database to determine whether the workpiece to be tested is qualified. The control module is responsible for driving the sealing device 2, thermal imager 32, conveyor motor 35, rejection motor 45, and electric telescopic column 49. The control panel is responsible for the human-computer interaction channel, controlling the start and stop of the entire device, parameter setting, and visualization of the test results. One end of the drive shaft 36 passes through the outer wall of the strip plate 1 and is fixedly connected to the conveyor motor 35 through a coupling. The conveyor motor 35 is fixedly installed on the outer wall of the strip plate 1 through a motor frame. The conveyor motor 35 provides the power source for the conveying of the workpiece. The conveyor motor 35 is a servo motor and can control the speed. The outer walls of the drive shaft 36 and the driven shaft 37 are fixedly sleeved with transmission rollers. The two transmission rollers are connected by a conveyor belt 38.
[0031] The rejection mechanism 4 includes a guide strip 41 fixedly connected to the outer wall of the strip plate 1, a strip block 43 fixedly connected to the outer wall of another strip plate 1, a T-shaped partition 42 disposed in the middle of the side of the adjacent surfaces of the two strip plates 1 away from the sealing device 2, and a limit groove 44 opened on the top of the strip block 43. The bottom of the guide strip 41 is close to the surface of the conveyor belt 38 but does not contact the surface of the conveyor belt 38. An L-shaped rod is fixedly connected to the bottom of the T-shaped partition 42, and the other end of the L-shaped rod is fixedly sleeved on the outer wall of the support leg. The L-shaped rod mainly supports the T-shaped partition 42. The T-shaped partition 42 is close to the surface of the conveyor belt 38 but does not contact the surface of the conveyor belt 38. A rejection motor 45 is fixedly installed on the top of the strip block 43. The rejection motor 45 is for reducing... The high-speed motor can rotate in both forward and reverse directions. The rejection motor 45 is fixedly connected to a threaded rod 46 via a coupling. The other end of the threaded rod 46 is rotatably connected to a support frame via a bearing. A moving block 47 is threadedly connected to the outer wall of the threaded rod 46. The top of the strip block 43 and the bottom of the moving block 47 are slidably connected via a limiting groove 44. The limiting groove 44 restricts the moving block 47 so that it can only move along the threaded rod 46 but will not rotate, thus ensuring the normal operation of the rejection mechanism 4. The support frame is fixedly connected to the top of the strip block 43. A support block 48 is fixedly connected to the top of the moving block 47. An electric telescopic column 49 is fixedly connected to the outer wall of the support block 48. A push block 410 is fixedly connected to the other end of the electric telescopic column 49.
[0032] Guided by the guide bar 41, the inspected workpiece moves to one side of the conveyor belt 38 and continues to be conveyed on the conveyor belt 38. The control terminal 34 controls the rejection motor 45 to start, which drives the threaded rod 49 to rotate. Under the restriction of the limit groove 44, the moving block 47 is moved to a suitable position. Then, the control terminal 34 controls the electric telescopic column 49 to extend, which drives the push block 410 to move. The push block 410 pushes the defective products to the other side of the conveyor belt 38. Under the isolation effect of the T-shaped partition 42, qualified and unqualified products will exit from different channels on the conveyor belt 38, achieving the purpose of sorting, replacing manual sorting, greatly reducing the workload of workers, and greatly improving work efficiency.
[0033] Working principle: The drive shaft 36 is driven to rotate by the transmission motor 35. The drive shaft 36 drives the transmission roller to rotate. With the cooperation of the driven shaft 37, the transmission roller on the outer wall of the driven shaft 37, and the conveyor belt 38, the workpiece is moved. When it moves to the area directly below the sealing device 2, the control terminal 34 controls the transmission motor 35 to stop rotating and simultaneously controls the sealing device 2 to seal the workpiece. After sealing, the transmission motor 35 is controlled to rotate again to continue moving the sealed workpiece. When it moves to the area detected by the trigger sensor 33, a signal is transmitted to the control terminal 34. The control terminal 34 controls the thermal imager 32 to take a picture of the workpiece under test. Then, the thermal imager 32 transmits the data to the control terminal 34, where the processing module judges the result. This replaces manual visual inspection, greatly improving inspection efficiency, reducing labor intensity, and allowing for a comprehensive inspection of each product in a shorter time. This reduces the risk of product recall and increases trust in the brand.
[0034] Guided by the guide bar 41, the inspected workpiece moves to one side of the conveyor belt 38 and continues to be conveyed on the conveyor belt 38. The control terminal 34 controls the rejection motor 45 to start, which drives the threaded rod 49 to rotate. Under the restriction of the limit groove 44, the moving block 47 is moved to a suitable position. Then, the control terminal 34 controls the electric telescopic column 49 to extend, which drives the push block 410 to move. The push block 410 pushes the defective products to the other side of the conveyor belt 38. Under the isolation effect of the T-shaped partition 42, qualified and unqualified products will exit from different channels on the conveyor belt 38, achieving the purpose of sorting, replacing manual sorting, greatly reducing the workload of workers, and greatly improving work efficiency.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A thermal imaging detection device for sealing aluminum foil, comprising a strip plate (1), a sealing device (2) fixedly connected to the top of one side of two strip plates (1), and a support leg fixedly connected to the bottom of the strip plate (1), characterized in that: The two strip plates (1) are respectively equipped with a detection mechanism (3) and a rejection mechanism (4); The detection mechanism (3) includes a drive shaft (36) and a driven shaft (37) rotatably connected between adjacent surfaces of two strip plates (1) and a U-shaped plate (31) fixedly connected at the top. A thermal imager (32) and a trigger sensor (33) are fixedly installed on the inner wall of the U-shaped plate (31). A control terminal (34) is fixedly installed on the outer wall of the strip plate (1) through a support plate. One end of the drive shaft (36) passes through the outer wall of the strip plate (1) and is fixedly connected to a transmission motor (35) through a coupling. Both the drive shaft (36) and the driven shaft (37) are fixedly sleeved with transmission rollers. A conveyor belt (38) is connected between the two transmission rollers.
2. The aluminum foil sealing thermal imaging detection device according to claim 1, characterized in that: The rejection mechanism (4) includes a guide strip (41) fixedly connected to the outer wall of the strip plate (1), a strip block (43) fixedly connected to the outer wall of another strip plate (1), a T-shaped partition (42) provided in the middle of the side of the adjacent surfaces of the two strip plates (1) away from the sealing device (2), and a limit groove (44) opened on the top of the strip block (43). A rejection motor (45) is fixedly installed on the top of the strip block (43). The rejection motor (45) is fixedly connected to a threaded rod (46) through a coupling. The other end of the threaded rod (46) is rotatably connected to a support frame through a bearing, and a moving block (47) is threadedly connected to the outer wall of the threaded rod (46). The support frame is fixedly connected to the top of the strip block (43). A support block (48) is fixedly connected to the top of the moving block (47). An electric telescopic column (49) is fixedly connected to the outer wall of the support block (48). A push block (410) is fixedly connected to the other end of the electric telescopic column (49).
3. The aluminum foil sealing thermal imaging detection device according to claim 1, characterized in that: The transmission motor (35) is fixedly mounted on the outer wall of the strip plate (1) via a motor frame.
4. The aluminum foil sealing thermal imaging detection device according to claim 1, characterized in that: The thermal imager (32) and the trigger sensor (33) are respectively installed on the top and side wall of the inner cavity of the U-shaped plate (31), and the positions of the thermal imager (32) and the trigger sensor (33) are aligned.
5. The aluminum foil sealing thermal imaging detection device according to claim 2, characterized in that: The bottom of the T-shaped partition (42) is fixedly connected to an L-shaped rod, and the other end of the L-shaped rod is fixedly sleeved on the outer wall of the support leg.
6. The aluminum foil sealing thermal imaging detection device according to claim 2, characterized in that: The top of the strip block (43) and the bottom of the movable block (47) are slidably connected by a limiting groove (44).
7. The aluminum foil sealing thermal imaging detection device according to claim 1, characterized in that: The control terminal (34) is equipped with a control module, a processing module and a control panel. The control terminal (34) is connected to the sealing device (2), the thermal imager (32), the trigger sensor (33), the conveyor motor (35), the rejection motor (45) and the electric telescopic column (49) via wiring.