Batch measuring temperature detects vacuum degree device of thermos cup and detection method thereof

Abstract

The application discloses a batch measuring temperature detection vacuum cup vacuum degree device and a detection method thereof, and the batch measuring method comprises two kinds of temperature sensors or infrared temperature sensors; the temperature sensor batch detection is that temperature sensors are arranged into a rectangular array and are inserted into the inside of a vacuum cup cup mouth to measure the temperature of each vacuum cup for multiple times, and the measured temperature change is determined by using an intelligent algorithm; the infrared temperature batch measurement is that an infrared temperature camera is used to shoot the images of all vacuum cups in a square frame of the vacuum cup, the images are transmitted into a computer, a method of graphic processing is used to find out the center point position parameters of each vacuum cup in the square frame, then the center point position is attached with a temperature number and each center point is measured for multiple times, and the measured temperature change is determined by using a deep learning algorithm to determine the vacuum degree of the vacuum cup. The application solves the problems of waste of manpower, electric energy, equipment and transportation fees and the like in the traditional method, shortens the production cycle, and improves the qualified rate.

Description

Technical Field

[0001] This invention relates to the field of thermos cup production and testing technology, specifically to a device and method for batch measuring temperature and detecting vacuum degree of thermos cups. Background Technology

[0002] Thermos cups are generally water-filled containers made of ceramic or stainless steel with a vacuum layer, and have a lid that seals tightly. In the traditional vacuuming process of thermos cup production, two solid sealing materials are placed at the bottom vents of 25-350 thermos cups in a frame, which are then placed in a heating chamber, the door is closed, and heated to nearly 700 degrees Celsius. At this temperature, the air layer between the thermos cups is thin, and the solid sealing materials melt and seal the vents during vacuuming. When the temperature drops to 600 degrees Celsius, the solid sealing materials solidify and completely seal the vents. When the temperature drops to 300 degrees Celsius, the chamber door is opened, and the entire tray of thermos cups is removed. After cooling, each thermos cup is heated to 180 degrees Celsius, and the vacuum quality is judged by sensing the external temperature of the cup. This process wastes labor, electricity, equipment, and transportation costs, extending the production cycle. Therefore, this invention patent improves the vacuuming process and vacuum detection method for thermos cups. Summary of the Invention

[0003] To address the problems mentioned in the background art, the present invention aims to provide a device and method for batch measuring the temperature and detecting the vacuum level of thermos cups. This device has the advantages of automatically detecting the quality of the vacuum layer of thermos cups in batches, reducing manual labor, saving energy, and improving production and testing efficiency. It solves the problems of wasting labor, electricity, equipment, and transportation costs, and extending the production cycle of thermos cups.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a device and method for batch measuring the temperature and detecting the vacuum degree of thermos cups, comprising two schemes. The first scheme uses a temperature sensor (thermocouple or resistance temperature sensor) as the core to form a temperature measuring rectangular array. The temperature sensor rectangular array extends into the mouth of the thermos cup to measure the temperature of each thermos cup multiple times. The measured temperature changes are judged by an intelligent algorithm. A faster temperature drop is considered as an unqualified vacuum degree, and a slower temperature drop is considered as a qualified vacuum degree. The second scheme uses an infrared temperature sensor as the core. After the infrared temperature sensor camera captures images of all thermos cups within the entire thermos cup frame, the images are transmitted to a computer for graphic processing to find the center point position parameters of each thermos cup within the frame. Then, the center point position of the thermos cup is assigned a temperature number, and each center point is measured multiple times. The measured temperature changes are judged by artificial intelligence and deep learning algorithms to determine the quality of the vacuum degree of the thermos cup.

[0005] The first solution includes a sorting frame, a three-dimensional sorting module, a variable-distance temperature measurement platform, a feeding platform, a frame of thermos cups to be tested, a loading robotic arm, a controller and display screen, an operating table, a base frame, a discharge platform, and a frame of thermos cups that have already been tested. The sorting frame houses a three-dimensional sorting module. A variable-distance temperature measuring platform is located on the right side of the three-dimensional sorting module, and a feeding platform is located on the right side of the variable-distance temperature measuring platform. A frame containing insulated cups to be tested is located on the right side of the feeding platform. A loading robotic arm is fixedly connected to the top right side of the frame containing the insulated cups to be tested. An operating table is located on the front of the frame containing the insulated cups to be tested, and a controller and display screen are located on the top of the operating table. An operating table is fixedly connected to the bottom of the variable-distance temperature measuring platform. A discharge platform is located on the left side of the variable-distance temperature measuring platform, and a frame containing tested insulated cups is located on the top left side of the discharge platform. The sorting frame primarily supports and protects the three-dimensional sorting module. The three-dimensional sorting module is used for sorting waste products. Defective products are marked and scrap is removed. Good products are then placed in designated locations. The variable-distance temperature measurement platform adjusts the spacing and position of temperature sensors to ensure they can be inserted into each thermos cup. It also positions and fixes the thermos cup heating frame and measures its temperature. The feeding platform holds the thermos cup heating frame and, through a mechanism, delivers it to the designated testing platform. The loading robotic arm places the thermos cup frame to be tested onto the feeding platform, enabling continuous vacuum degree detection. The controller, display screen, and operating console control and operate the entire device. The base frame supports and adjusts the position of the variable-distance temperature measurement platform. After testing, the thermos cup frames are removed and placed on the discharge platform for defective product sorting.

[0006] The second solution includes: an infrared sorting frame, a sorting motion execution module, an infrared temperature measurement frame, a laminar flow heat dissipation unit, a frame for the thermos cup to be tested, a loading robotic arm, a computer controller, an operating table, a display, a feeding platform, an infrared temperature measurement camera, a focus adjustment module, a frame for the thermos cup to be tested, a frame for the thermos cup that has been tested, and a discharge platform. The large, medium, and small thermos cup frames are three representative models of various thermos cups, but do not mean that only these three types of thermos cups can be tested. The variable-distance temperature measurement platform can detect the vacuum degree of thermos cups with different outer diameters and mouth diameters by adjusting the spacing of the temperature measurement mechanism.

[0007] As a preferred embodiment of the present invention, the variable-pitch temperature measuring platform comprises: a position adjustment plate, an upper variable-pitch support frame, an upper variable-pitch support plate, a 1.1 longitudinal motion module, a 3.1 transverse constant-pitch mechanism, a frame for the thermos cup being measured, a 2.1 transverse motion module, a variable-pitch guide rod, a 1.2 longitudinal motion module, a 4.1 longitudinal constant-pitch mechanism, a lower longitudinal constant-pitch mechanism, a lower longitudinal motion module, a 2.2 transverse motion module, a lower variable-pitch support plate, a lower variable-pitch guide rod, a lower transverse motion module, a temperature measuring mechanism, a 3.2 transverse constant-pitch mechanism, a lower transverse constant-pitch mechanism, a control motor, a 4.2 longitudinal constant-pitch mechanism, a 2.3 transverse motion module, a position adjustment module, a module fixing plate, a variable-pitch sliding guide rail, a variable-pitch slider, an anti-collision head, and a buffer spring. The variable-pitch temperature measuring platform consists of an induction plate, a photoelectric switch, a moving tube sleeve, a telescopic spring, and a temperature measuring rod. It comprises upper and lower variable-pitch mechanisms. The upper variable-pitch mechanism is connected to the lower variable-pitch mechanism via a position adjustment plate, a position adjustment module, and a module fixing plate. The positions of the upper and lower variable-pitch mechanisms are adjusted by the movement of the module. The upper variable-pitch mechanism consists of an upper variable-pitch support plate, a 1.1 longitudinal motion module, a 3.1 transverse equal-pitch mechanism, a frame 17 of the thermos cup being measured, a 2.1 transverse motion module, a variable-pitch guide rod, a 1.2 longitudinal motion module, a 4.1 longitudinal equal-pitch mechanism, a 2.2 transverse motion module, a temperature measuring mechanism, a 3.2 transverse equal-pitch mechanism, a control motor, a 4.2 longitudinal equal-pitch mechanism, a 2.3 transverse motion module, a variable-pitch sliding guide rail, and a variable-pitch slider.

[0008] Preferably, the upper variable-pitch support plate supports 1.1 longitudinal motion module, 2.1 transverse motion module, 1.2 longitudinal motion module, 2.2 transverse motion module, control motor, 2.3 transverse motion module, variable-pitch sliding guide rail, and variable-pitch slider. The 1.1 longitudinal motion module is equipped with a 4.2 longitudinal equal-pitch mechanism, and the 1.2 longitudinal motion module is equipped with a 4.1 longitudinal equal-pitch mechanism. Driven by the control motor, the 1.1 and 1.2 longitudinal motion modules can achieve longitudinal equal-pitch adjustment of the temperature measuring mechanism 28. The 2.1 transverse motion module is equipped with a 3... 1. A transverse equal-distance mechanism is provided. 2.2 The transverse motion module is equipped with a 3.2 transverse equal-distance mechanism. Under the drive of the control motor, the transverse motion module 2.1 and the transverse motion module 2.2 can realize the transverse equal-distance adjustment of the temperature measuring mechanism. Each temperature measuring mechanism is installed on a variable-distance slider. Multiple variable-distance sliders are installed on variable-distance sliding guide rails. The movement of the temperature measuring mechanism is along the variable-distance guide rod. The frame of the thermos cup to be tested is placed on the upper variable-distance mechanism for vacuum degree detection. The structure of the lower variable-distance mechanism is the same as that of the upper variable-distance mechanism. They are staggered in installation to form a complete whole.

[0009] In a preferred embodiment of the present invention, the temperature measuring mechanism comprises an anti-collision head, a buffer spring, a sensing element, a photoelectric switch, a moving sleeve, a telescopic spring, and a temperature measuring rod. If the anti-collision head does not enter the interior of the thermos cup but hits the outer frame, it will release the impact force to the buffer spring, causing the moving sleeve to move downwards. The sensing element moves downwards along with the moving sleeve, triggering the photoelectric switch to conduct, thus stopping the entire detection system to prevent damage to the temperature measuring mechanism. After the temperature measuring mechanism leaves the thermos cup frame being tested, the telescopic spring resets, allowing for the next test. After the thermos cup frame being tested is measured, it enters the discharge platform. The three-dimensional sorting module placed on the sorting frame sorts the defective products on the tested thermos cup frames. The controller and display screen on the operating table perform detection control and motion control of the entire system.

[0010] In a preferred embodiment of the present invention, the loading robotic arm transports the thermos cup frame to be tested onto the feeding platform and then into the inspection platform. The laminar flow cooling unit cools the thermos cup frame. The focus adjustment module adjusts the focus of the infrared temperature measuring camera and takes a picture of the thermos cup frame. The image is transmitted to the computer controller for calculation and processing. The result of the vacuum degree of the thermos cup, obtained through image processing and artificial intelligence algorithm analysis, is transmitted to the display to show the location and number of the unqualified thermos cups. Red indicates unqualified, and green indicates qualified. After the inspection is completed, the sorting motion execution module sorts the tested thermos cup frames, marking or removing the unqualified cups, and placing the qualified cups into the qualified area. The inspection is then complete.

[0011] As a preferred detection method of the present invention, the method includes the following steps: S1: Remove the thermos heating frame at 300 degrees Celsius, place the entire thermos frame onto the test tray, adjust the spacing of the temperature measuring mechanisms, align the temperature measuring mechanisms with the center of the mouth of each thermos, activate the lifting mechanism to extend each temperature measuring mechanism of the variable-distance temperature measuring platform into the thermos, basically sealing the mouth of the thermos and start measuring, record the initial temperature value; after continuous temperature measurement for 1-5 minutes (the time can be adjusted), transmit the temperature curve of each thermos to the controller and display.

[0012] S2; The controller calls the vacuum degree classification model to predict and determine the temperature change curve of each thermos cup. The determination result is saved and output to the display screen; The display screen shows the position and number of each thermos cup. Red indicates unqualified, and green indicates qualified.

[0013] S3: Based on the position shown on the display, the controller controls the three-dimensional sorting module to move to the designated position to mark or remove unqualified thermos cups, and put qualified cups into the qualified area, thus completing the inspection.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The detection device of this invention changes the traditional phenomenon of wasting manpower, electricity, equipment and transportation costs, which prolongs the production cycle of thermos cups. By using two detection schemes, there is no waste of manpower, electricity, equipment and transportation costs, and the production cycle of thermos cups is not prolonged.

[0015] 2. By setting up a variable-distance temperature measurement platform, this invention enables more accurate detection and improves the overall detection quality.

[0016] 3. The present invention supports 1.1 longitudinal motion module, 2.1 lateral motion module, 1.2 longitudinal motion module, 2.2 lateral motion module, control motor, 2.3 lateral motion module, variable pitch sliding guide rail and variable pitch slider by setting up an upper variable pitch support plate, which can make vacuum degree detection more stable and prevent detection errors.

[0017] 4. The present invention enables more accurate temperature detection and increases detection efficiency through the setting of the temperature measuring mechanism. Attached Figure Description

[0018] Figure 1 This is an overall layout diagram of the device of the present invention; Figure 2 This is an overall structural diagram of the device of the present invention; Figure 3 This is a structural diagram of the variable distance detection platform of the present invention; Figure 4 This is a structural diagram of the upper-layer variable-distance detection platform of the present invention; Figure 5 This is a structural diagram of the temperature measuring mechanism of the present invention; Figure 6 This is a flowchart of the deep learning classification model training process of the present invention; Figure 7 This is a flowchart of the vacuum layer classification process of the present invention; Figure 8 This is an overall layout diagram of the second technical solution of the present invention; Figure 9 This is an overall structural diagram of the device according to the second technical solution of the present invention; Figure 10 This is a flowchart of the training process for the infrared thermometry deep learning target detection model, which is the second technical solution of this invention. Figure 11 This is a flowchart of the deep learning classification model training process of the second technical solution of the present invention; Figure 12 This is a flowchart of the vacuum layer classification process for the second technical solution of the present invention; Figure 13 This is a structural diagram of the frame of the large thermos cup tested in this invention; Figure 14 This is a structural diagram of the frame of the medium-sized thermos cup tested in this invention; Figure 15 This is a structural diagram of the frame of the small thermos cup tested in this invention.

[0019] In the diagram: 1. Sorting frame; 2. 3D sorting module; 3. Variable-distance temperature measurement platform; 4. Feeding platform; 5. Frame of the thermos cup to be tested; 6. Loading robotic arm; 7. Controller and display screen; 8. Operating table; 9. Base frame; 10. Discharge platform; 11. Frame of the thermos cup already tested; 12. Position adjustment plate; 13. Upper variable-distance support frame; 14. Upper variable-distance support plate; 15. Longitudinal motion module (1.1); 16. Lateral constant-distance mechanism (3.1); 17. The tested thermos cup frame; 18. Lateral motion module (2.1); 19. Variable pitch guide rod; 20. Longitudinal motion module (1.2); 21. Longitudinal constant pitch mechanism (4.1); 22. Lower longitudinal constant pitch mechanism; 23. Lower longitudinal motion module; 24. Lateral motion module (2.2); 25. Lower variable pitch support plate; 26. Lower variable pitch guide rod; 27. Lower lateral motion module; 28. Temperature measuring mechanism; 29. ​​Lateral constant pitch mechanism (3. 2); 30. Lower layer transverse constant pitch mechanism; 31. Control motor; 32. Longitudinal constant pitch mechanism (4.2); 33. Transverse motion module (2.3); 34. Position adjustment module; 35. Module fixing plate; 36. Pitch-changing sliding guide rail; 37. Pitch-changing slider; 38. Anti-collision head; 39. Buffer spring; 40. Sensing plate; 41. Photoelectric switch; 42. Motion sleeve; 43. Telescopic spring; 44. Temperature measuring rod; 45. Infrared sorting frame; 46. 47. Sorting motion execution module; 48. Infrared temperature measurement frame; 49. Laminar flow heat dissipation unit; 50. Frame of the thermos cup to be tested; 51. Loading robotic arm; 52. Computer controller; 53. Operating table; 54. Display; 55. Feeding platform; 56. Infrared temperature measurement camera; 57. Focus adjustment module; 58. Frame of the thermos cup under test; 59. Frame of the thermos cup already tested; 60. Discharge platform; 61. Large thermos cup; 62. Medium thermos cup; 63. Small thermos cup. Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 15As shown, the present invention provides a batch temperature measurement and vacuum degree detection device and method for thermos cups, including two schemes. The first scheme includes a sorting frame 1, a three-dimensional sorting module 2, a variable distance temperature measuring platform 3, a feeding platform 4, a thermos cup frame to be tested 5, a loading robotic arm 6, a controller and display screen 7, an operating table 8, a bottom frame 9, a discharge platform 10, and a thermos cup frame 11 that has been tested. The sorting frame 1 houses a three-dimensional sorting module 2. To the right of the three-dimensional sorting module 2 is a variable-distance temperature measuring platform 3, and to the right of the variable-distance temperature measuring platform 3 is a feeding platform 4. To the right of the feeding platform 4 is a frame of insulated cups to be tested 5. A loading robotic arm 6 is fixedly connected to the top right side of the frame of insulated cups to be tested 5. An operating table 8 is located on the front of the frame of insulated cups to be tested 5, and a controller and display screen 7 are located on the top of the operating table 8. The operating table 8 is fixedly connected to the bottom of the variable-distance temperature measuring platform 3. To the left of the variable-distance temperature measuring platform 3 is a discharge platform 10, and to the top left side of the discharge platform 10 is a frame of insulated cups that have already been tested 11. The sorting frame 1 primarily supports and protects the three-dimensional sorting module 2. The three-dimensional sorting module 2 is used for sorting waste products. The defective products are marked and the waste products are removed. Then the good products are placed in the designated position. The variable distance temperature measuring platform 3 is used to adjust the spacing and position of the temperature sensors to ensure that the temperature sensors can be placed inside each thermos cup. At the same time, the heating frame of the thermos cup is positioned and fixed and the temperature is measured. The feeding platform 4 is used to place the heating frame of the thermos cup and to send the heating frame of the thermos cup to the designated detection platform through the mechanism. The loading robot arm 6 puts the thermos cup frame 5 to be tested into the feeding platform 4 to realize continuous vacuum degree detection. The controller, display screen 7 and operating table 8 play the role of controlling and operating the entire device. The bottom frame 9 is used to support and adjust the position of the variable distance temperature measuring platform 3. After the thermos cup frame 11 has been tested, it is removed and placed on the discharge platform 10 for defective product sorting.

[0022] The second solution includes: an infrared sorting frame 45, a sorting motion execution module 46, an infrared temperature measuring frame 47, a laminar flow heat dissipation unit 48, a frame for the thermos cup to be tested 49, a loading robotic arm 50, a computer controller 51, an operating table 52, a display 53, a feeding platform 54, an infrared temperature measuring camera 55, a focus adjustment module 56, a frame for the thermos cup to be tested 57, a frame for the thermos cup that has already been tested 58, and a discharge platform 59. The large thermos cup frame 60, the medium thermos cup frame 61, and the small thermos cup frame 62 are three representative of various thermos cup models, but do not mean that only these three types of thermos cups can be tested. The variable distance temperature measuring platform 3 can detect the vacuum degree of thermos cups with different outer diameters and mouth diameters by adjusting the spacing of the temperature measuring mechanism 28.

[0023] refer to Figure 3The variable-pitch temperature measurement platform 3 includes: a position adjustment plate 12, an upper variable-pitch support frame 13, an upper variable-pitch support plate 14, a longitudinal motion module 15, a transverse constant-pitch mechanism 16, a thermos cup frame 17, a transverse motion module 18, a variable-pitch guide rod 19, a longitudinal motion module 20, a longitudinal constant-pitch mechanism 21, a lower longitudinal constant-pitch mechanism 22, a lower longitudinal motion module 23, and a transverse... 24. Motion module; 25. Lower pitch-changing support plate; 26. Lower pitch-changing guide rod; 27. Lower lateral motion module; 28. Temperature measuring mechanism; 29. ​​3.2 Lateral equal pitch mechanism; 30. Lower lateral equal pitch mechanism; 31. Control motor; 32. 4.2 Longitudinal equal pitch mechanism; 33. 2.3 Lateral motion module; 34. Position adjustment module; 35. Module fixing plate; 36. Pitch-changing sliding guide rail; 37. Pitch-changing slider; 38. Anti-collision head; 39. Buffer spring. The variable-pitch temperature measuring platform 3 consists of an induction plate 40, a photoelectric switch 41, a moving tube sleeve 42, a telescopic spring 43, and a temperature measuring rod 44. The variable-pitch temperature measuring platform 3 is composed of upper and lower variable-pitch mechanisms. The upper variable-pitch mechanism is connected to the lower variable-pitch mechanism through a position adjustment plate 12, a position adjustment module 34, and a module fixing plate 35. The position of the upper and lower variable-pitch mechanisms is adjusted by the movement of the module. The upper variable-pitch mechanism consists of an upper variable-pitch support plate 14, a longitudinal motion module 15, a transverse equal variable-pitch mechanism 16, a thermos cup frame 17, a transverse motion module 18, a variable-pitch guide rod 19, a longitudinal motion module 20, a longitudinal equal variable-pitch mechanism 21, a transverse motion module 24, a temperature measuring mechanism 28, a transverse equal variable-pitch mechanism 29, a control motor 31, a longitudinal equal variable-pitch mechanism 32, a transverse motion module 33, a variable-pitch sliding guide rail 36, and a variable-pitch slider 37.

[0024] As a technical optimization of the present invention, the setting of the variable-distance temperature measurement platform can make the detection more accurate and improve the overall detection quality.

[0025] refer to Figure 3The upper variable-pitch support plate 14 supports 1.1 longitudinal motion module 15, 2.1 lateral motion module 18, 1.2 longitudinal motion module 20, 2.2 lateral motion module 24, control motor 31, 2.3 lateral motion module 33, variable-pitch sliding guide rail 36, and variable-pitch slider 37. 1.1 Longitudinal motion module 15 is equipped with 4.2 longitudinal equal-pitch mechanism 32, and 1.2 Longitudinal motion module 20 is equipped with 4.1 longitudinal equal-pitch mechanism 21. Under the drive of control motor 31, 1.1 longitudinal motion module 15 and 1.2 longitudinal motion module 20 can realize the longitudinal equal-pitch adjustment of temperature measuring mechanism 28. 2.1 Lateral motion module 18 is equipped with 3. 1. A transverse equal pitch mechanism 16 is installed on the transverse motion module 24. 2. A transverse equal pitch mechanism 29 is installed on the transverse motion module 218. Under the drive of the control motor 31, the transverse motion module 218 and the transverse motion module 24 can realize the transverse equal pitch adjustment of the temperature measuring mechanism 28. Each temperature measuring mechanism 28 is installed on the pitch slider 37. Multiple pitch sliders 37 are installed on the pitch sliding guide rail 36. The movement of the temperature measuring mechanism 28 is along the pitch guide rod 19. The thermos cup frame 17 to be tested is placed on the upper pitch mechanism for vacuum degree detection. The structure of the lower pitch mechanism is the same as that of the upper pitch mechanism. They are staggered in installation to form a complete whole.

[0026] As a technical optimization of the present invention, by supporting the longitudinal motion module 15, the transverse motion module 18, the longitudinal motion module 20, the transverse motion module 24, the control motor 31, the transverse motion module 33, the variable pitch sliding guide rail 36 and the variable pitch slider 37 by the upper variable pitch support plate, the vacuum degree detection can be made more stable and the phenomenon of detection error can be prevented.

[0027] refer to Figure 5 The temperature measuring mechanism 28 consists of an anti-collision head 38, a buffer spring 39, a sensing element 40, a photoelectric switch 41, a moving sleeve 42, a telescopic spring 43, and a temperature measuring rod 44. If the anti-collision head 38 does not enter the inside of the thermos cup and hits the outer frame, it will release the impact force to the buffer spring 39, causing the moving sleeve 42 to move downwards. The sensing element 40 moves downwards along with it, triggering the photoelectric switch 41 to conduct, thus stopping the entire detection system to prevent the temperature measuring mechanism 28 from being damaged. After the temperature measuring mechanism 28 leaves the thermos cup frame 17 being tested, the telescopic spring 43 returns to its original position, allowing for the next test. After the thermos cup frame 17 is measured, it enters the discharge platform 10. The three-dimensional sorting module 2, placed on the sorting frame 1, sorts the defective products on the tested thermos cup frame 11. The controller and display screen 7, placed on the operating table 8, perform detection control and motion control on the entire system.

[0028] As a technical optimization of the present invention, the temperature measuring mechanism 28 can make the temperature detection more accurate and increase the detection efficiency.

[0029] refer to Figure 9 The loading robotic arm 50 transports the thermos cup frame 49 to be tested onto the feeding platform 54 and sends it into the inspection platform. The laminar flow cooling unit 48 cools down the thermos cup frame 49. The focus adjustment module 56 adjusts the focus of the infrared temperature measuring camera 55 and takes a picture of the thermos cup frame 49. The picture is transmitted to the computer controller 51 for calculation and processing. The result of the vacuum degree of the thermos cup, obtained through graphic processing and artificial intelligence algorithm analysis, is transmitted to the display to show the location and number of the unqualified thermos cups. Red indicates unqualified, and green indicates qualified. After the inspection is completed, the sorting motion execution module 46 sorts the tested thermos cup frames 58, marking or removing the unqualified thermos cups, and placing the qualified cups into the qualified area. The inspection is completed.

[0030] S1: Remove the thermos heating frame at 300 degrees Celsius, place the entire thermos frame onto the test tray, adjust the spacing of the temperature measuring mechanisms 28, align the temperature measuring mechanisms 28 with the center of the mouth of each thermos, activate the lifting mechanism to extend each temperature measuring mechanism 28 of the variable-distance temperature measuring platform 3 into the thermos, basically sealing the mouth of the thermos to begin measurement, and record the initial temperature value; after continuous temperature measurement for 1-5 minutes (the time can be adjusted), transmit the temperature curve of each thermos to the controller and display 7.

[0031] S2: The controller calls the vacuum degree classification model to predict and judge the temperature change curve of each thermos cup. The judgment result is saved and output to the display screen. The display screen shows the position and number of each thermos cup. Red indicates unqualified and green indicates qualified.

[0032] S3: Based on the position shown on the display, the controller controls the three-dimensional sorting module 2 to move to the designated position to mark or remove unqualified thermos cups, and put qualified cups into the qualified area, thus completing the inspection.

[0033] Option 1: After the entire frame of insulated cups is removed from the heating furnace, the frame is placed on the testing tray. Each temperature sensor on the tray extends into the insulated cup, with the bottom almost completely sealing the cup's opening, and begins measurement, recording the initial temperature value. After 1-5 minutes (the time can be adjusted), the temperature is measured periodically, and the temperature change curve is observed. Cups with a rapid temperature drop are considered unqualified, while those with a slow temperature drop are considered qualified. This judgment rule is written into the control algorithm and programmed into the software for judgment. The judgment result is displayed on the screen, showing the position and number of each insulated cup. Red indicates unqualified, and green indicates qualified. The operator removes the unqualified cups according to the position shown on the display and places the qualified cups in the qualified area. The test is complete. The principle of the entire test is based on the principle of convection: convection is a form of heat conduction. The amount of air in the insulated cup's interlayer affects the rate of heat transfer. A well-sealed insulated cup experiences a slower temperature drop, while a poorly sealed insulated cup experiences a faster temperature drop. The quality of the vacuum level of the insulated cup is determined by the rate of temperature drop.

[0034] Option 2: The vacuum-sealing process for insulated cups involves placing two solid sealing materials at the bottom of the insulated cups within a frame, placing them in a heating chamber, and closing the chamber door. The cups are heated to nearly 700 degrees Celsius. At this point, the air gap between the insulated cups is thin, creating a vacuum. The solid sealing materials melt at the high temperature, sealing the vents. When the temperature drops to 600 degrees Celsius, the solid materials solidify, completely sealing the vents. When the temperature drops to 300 degrees Celsius, the chamber door is opened, and the entire tray of insulated cups is removed. The residual heat of the insulated cups at this point is used to test the vacuum level of the entire tray, eliminating the need for repeated heating in the old production process. The entire frame containing the insulated cups is then placed on the testing tray. A laminar flow temperature measurement unit cools the entire frame of insulated cups, while an infrared temperature sensor on the frame measures the temperature of each insulated cup. The infrared sensor captures images and transmits the measured temperature information to a computer. Image processing and deep learning methods are used to process the images to calculate the number of thermos cups within the entire tray. The position data of each thermos cup is then mapped to the temperature measurement point of the infrared sensor. Multiple temperature measurements are continuously taken from each thermos cup to obtain the relevant temperature change curve. This curve is then identified, analyzed, and judged. A rapid temperature drop at each measurement point is considered unacceptable, while a slow temperature drop is considered acceptable. After the algorithm's judgment, the position of each cup is displayed on the screen: red indicates unacceptable, and green indicates acceptable. The operator removes unacceptable cups according to the position displayed on the screen and places acceptable cups into the acceptable area, completing the inspection. The detection principle integrates heat convection, infrared thermometry, image processing, and deep learning. Specifically, the amount of air in the insulation layer of the thermos affects the heat transfer rate. A well-sealed thermos experiences a slower temperature drop, while a poorly sealed one experiences a faster temperature drop. The quality of the vacuum level is determined by the rate of temperature decrease. An infrared camera captures multiple infrared images of all thermos cups, which are then transmitted to a computer. The computer uses a combination of image processing and deep learning to process the infrared images, obtain the temperature information of the thermos cups, and determine whether the temperature curve of each cup is within acceptable limits. For detailed steps, please refer to [link / reference]. Figure 10 The process involves eight steps: First, the computer reads the original infrared image; second, the image color space is converted from RGB to HSV; third, the image is binarized; fourth, morphological processing is performed on the image; fifth, a contour detection algorithm is used to determine the location and quantity of the thermos cups; sixth, an infrared thermometer is used to acquire the temperature information of each thermos cup; seventh, temperature data curves for the thermos cups are plotted; and eighth, a trained YOLOv5 model is used to determine whether the temperature curves of the thermos cups are up to standard. Based on whether the temperature curves of the thermos cups are up to standard, the vacuum level of the thermos cups is determined, the location of defective thermos cups is identified, and the location of the defective cups is displayed on the screen.

[0035] The working principle and usage process of this invention are as follows: First, remove the thermos cup heating frame at 300 degrees Celsius. Place the entire thermos cup frame onto the testing tray. Adjust the spacing of the temperature measuring mechanisms 28, aligning them with the center of the rim of each thermos cup. Activate the lifting mechanism to extend each temperature measuring mechanism 28 of the variable-distance temperature measuring platform 3 into the thermos cup, ensuring the bottom of the cup is essentially sealed. Begin measurement and record the initial temperature value. After continuous temperature measurement for 1-5 minutes (the time can be adjusted), transmit the temperature curve of each thermos cup to the controller and display 7. The controller then uses the vacuum degree classification model to analyze each... The system predicts and judges the temperature change curves of each thermos cup, saves the judgment results, and outputs them to the display screen. The display screen shows the position and number of each thermos cup. Red indicates unqualified and green indicates qualified. According to the position on the display screen, the controller controls the three-dimensional sorting module 2 to move to the designated position to mark or remove unqualified thermos cups, and put qualified cups into the qualified area. The inspection is completed, which realizes the batch automatic inspection of the vacuum layer of thermos cups, which can reduce manual labor, save energy, and improve production and inspection efficiency.

[0036] In summary, this thermos cup quality inspection device and its inspection method change the traditional practice of wasting labor, electricity, equipment, and transportation costs, which prolongs the production cycle of thermos cups. By using two inspection schemes, the waste of labor, electricity, equipment, and transportation costs is eliminated, and the production cycle of thermos cups is not prolonged.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for batch measurement of temperature and vacuum degree of thermos cups, comprising two schemes. The first scheme comprises a sorting frame (1), a three-dimensional sorting module (2), a variable distance temperature measuring platform (3), a feeding platform (4), a thermos cup frame to be tested (5), a loading robotic arm (6), a controller and display screen (7), an operating table (8), a bottom frame (9), a discharge platform (10), and a thermos cup frame that has been tested (11). Its features are: The sorting frame (1) is equipped with a three-dimensional sorting module (2). A variable-distance temperature measuring platform (3) is located on the right side of the three-dimensional sorting module (2). A feeding platform (4) is located on the right side of the variable-distance temperature measuring platform (3). A thermos cup frame (5) to be tested is located on the right side of the feeding platform (4). A loading robot arm (6) is fixedly connected to the top right side of the thermos cup frame (5). An operating table (8) is located on the front of the thermos cup frame (5). The top of the platform (8) is equipped with a controller and a display screen (7). The bottom of the variable-distance temperature measuring platform (3) is fixedly connected to the operating platform (8). The left side of the variable-distance temperature measuring platform (3) is equipped with a discharge platform (10). The left side of the top of the discharge platform (10) is equipped with a measured thermos cup frame (11). The sorting frame (1) is mainly used to support the three-dimensional sorting module (2) and for protection. The three-dimensional sorting module (2) is used to sort waste products and to sort the determined defective products. Mark and remove the defective products, and then put the good products into the designated position. The variable distance temperature measuring platform (3) is used to adjust the spacing and position of the temperature sensor to ensure that the temperature sensor can be placed inside each thermos cup. At the same time, the thermos cup heating frame is positioned and fixed and the temperature is measured. The feeding platform (4) is used to place the thermos cup heating frame and transmit the thermos cup heating frame to the designated detection platform through the mechanism. The loading robot arm (6) puts the thermos cup frame (5) to be tested into the feeding platform (4) to realize continuous vacuum degree detection. The controller, display screen (7) and operating table (8) play the role of control and operation of the whole device. The bottom frame (9) is used to support and adjust the position of the variable distance temperature measuring platform (3). After the thermos cup frame (11) has been tested, it is moved out and placed on the discharge platform (10) for defective product sorting. The variable distance temperature measuring platform (3) can detect the vacuum degree of thermos cups with different outer diameters and mouth diameters by adjusting the spacing of the temperature measuring mechanism (28). The second scheme includes: an infrared sorting frame (45), a sorting motion execution module (46), an infrared temperature measuring frame (47), a laminar flow heat dissipation unit (48), a second frame for the thermos cup to be tested (49), a second loading robotic arm (50), a computer controller (51), a second operating table (52), a display (53), a second feeding platform (54), an infrared temperature measuring camera (55), a focus adjustment module (56), a frame for the thermos cup to be tested (57), a second frame for the thermos cup that has been tested (58), a second unloading platform (59), a large thermos cup frame (60), a medium thermos cup frame (61), and a small thermos cup frame (62). The large thermos cup frame (60), the medium thermos cup frame (61), and the small thermos cup frame (62) are three representatives of various thermos cup models, but do not mean that only these three types of thermos cups can be tested. The second loading robotic arm (50) will load the thermos cup to be tested... The second thermos cup frame (49) is transported to the second feeding platform (54) and sent to the inspection platform. The laminar flow heat dissipation unit (48) cools down the second thermos cup frame (49) to be tested. The focal length adjustment module (56) adjusts the focal length of the infrared temperature measuring camera (55). The focal length adjustment module (56) takes a temperature measurement and picture of the second thermos cup frame (49) to be tested. The picture is transmitted to the computer controller (51) for calculation and processing. The result of the vacuum degree of the thermos cup obtained by the graphic processing and artificial intelligence algorithm analysis is transmitted to the display to show the location and number of the unqualified thermos cup. Red indicates unqualified and green indicates qualified. After the inspection is completed, the second thermos cup frame (58) is sorted by the sorting motion execution module (46). The unqualified thermos cup is marked or removed. The qualified cup is placed in the qualified area. The inspection is completed.

2. The device for batch measuring the temperature and detecting the vacuum degree of thermos cups according to claim 1, characterized in that: The variable-pitch temperature measurement platform (3) includes: a position adjustment plate (12), an upper variable-pitch support frame (13), an upper variable-pitch support plate (14), a 1.1 longitudinal motion module (15), a 3.1 transverse constant-pitch mechanism (16), a thermos cup frame (17), a 2.1 transverse motion module (18), a variable-pitch guide rod (19), a 1.2 longitudinal motion module (20), a 4.1 longitudinal constant-pitch mechanism (21), a lower longitudinal constant-pitch mechanism (22), a lower longitudinal motion module (23), and a 2.2 transverse motion... Moving module (24), lower pitch support plate (25), lower pitch guide rod (26), lower lateral motion module (27), temperature measuring mechanism (28), 3.2 lateral constant pitch mechanism (29), lower lateral constant pitch mechanism (30), control motor (31), 4.2 longitudinal constant pitch mechanism (32), 2.3 lateral motion module (33), position adjustment module (34), module fixing plate (35), pitch sliding guide rail (36), pitch slider (37), anti-collision head (38), buffer spring ( 39), sensing plate (40), photoelectric switch (41), moving tube sleeve (42), telescopic spring (43), and temperature measuring rod (44). The variable pitch temperature measuring platform (3) consists of upper and lower variable pitch mechanisms. The upper variable pitch mechanism is connected to the lower variable pitch mechanism through a position adjustment plate (12), a position adjustment module (34), and a module fixing plate (35). The position of the upper and lower variable pitch mechanisms is adjusted by the movement of the module. The upper variable pitch mechanism consists of an upper variable pitch support plate (14), a longitudinal motion module (15), and a vertical motion module (15). The device consists of a transverse equal pitch mechanism (16), a thermos cup frame (17), a transverse motion module (18), a pitch guide rod (19), a longitudinal motion module (20), a longitudinal equal pitch mechanism (21), a transverse motion module (24), a temperature measuring mechanism (28), a transverse equal pitch mechanism (29), a control motor (31), a longitudinal equal pitch mechanism (32), a transverse motion module (33), a pitch sliding guide rail (36), and a pitch slider (37).

3. The device for batch measuring the temperature and detecting the vacuum degree of thermos cups according to claim 2, characterized in that: The upper variable pitch support plate (14) supports the 1.1 longitudinal motion module (15), 2.1 lateral motion module (18), 1.2 longitudinal motion module (20), 2.2 lateral motion module (24), control motor (31), 2.3 lateral motion module (33), variable pitch sliding guide rail (36), and variable pitch slider (37). The 1.1 longitudinal motion module (15) is equipped with the 4.2 longitudinal equal pitch mechanism (32), and the 1.2 longitudinal motion module (20) is equipped with the 4.1 longitudinal equal pitch mechanism (21). Under the drive of the control motor (31), the 1.1 longitudinal motion module (15) and the 1.2 longitudinal motion module (20) can realize the longitudinal equal pitch adjustment of the temperature measuring mechanism (28). The 2.1 lateral motion module (18) is equipped with the 4.2 longitudinal equal pitch mechanism (21). There is a 3.1 lateral equal pitch mechanism (16), and the 2.2 lateral motion module (24) is equipped with a 3.2 lateral equal pitch mechanism (29). The 2.1 lateral motion module (18) and the 2.2 lateral motion module (24) are driven by the control motor (31) to realize the lateral equal pitch adjustment of the temperature measuring mechanism (28). Each temperature measuring mechanism (28) is installed on the pitch slider (37), and multiple pitch sliders (37) are installed on the pitch sliding guide rail (36). The movement of the temperature measuring mechanism (28) is along the pitch guide rod (19). The thermos cup frame (17) to be tested is placed on the upper pitch mechanism for vacuum detection. The structure of the lower pitch mechanism is the same as that of the upper pitch mechanism. They are staggered in installation to form a complete whole.

4. The device for batch measuring the temperature and detecting the vacuum degree of thermos cups according to claim 3, characterized in that: The temperature measuring mechanism (28) consists of an anti-collision head (38), a buffer spring (39), a sensing plate (40), a photoelectric switch (41), a moving sleeve (42), a telescopic spring (43), and a temperature measuring rod (44). If the anti-collision head (38) does not enter the inside of the thermos cup and hits the outer frame, it will release the impact force to the buffer spring (39), causing the moving sleeve (42) to move downwards. The sensing plate (40) moves downwards along with the moving sleeve, triggering the photoelectric switch (41) to conduct, thus enabling the entire detection system to operate. The system stops to prevent the temperature measuring mechanism (28) from being damaged by impact. After the temperature measuring mechanism (28) leaves the thermos cup frame (17) being tested, the telescopic spring (43) resets, and the next test can be performed. After the thermos cup frame (17) being tested is measured, it enters the discharge platform (10). The three-dimensional sorting module (2) placed on the sorting frame (1) sorts the defective products on the thermos cup frame (11) that have been tested. The controller and display screen (7) placed on the operating table (8) perform detection control and motion control on the entire system.

5. The detection method for a batch temperature measurement and vacuum degree detection device for thermos cups according to claim 4, characterized in that: Based on the first solution, the following steps are included: S1: Remove the thermos heating frame at 300 degrees Celsius, place the entire thermos frame onto the test tray, adjust the spacing of the temperature measuring mechanism (28), align the temperature measuring mechanism (28) with the center of the mouth of each thermos, turn on the lifting mechanism to insert each temperature measuring mechanism (28) of the variable distance temperature measuring platform (3) into the thermos, and start measuring when the bottom of the thermos basically seals the mouth of the thermos and record the initial temperature value; after measuring the temperature for 1-5 minutes, transmit the temperature curve of each thermos to the controller and display screen (7). S2: The controller calls the vacuum degree classification model to predict and determine the temperature change curve of each thermos cup. The determination result is saved and output to the display screen. The display screen shows the position and number of each thermos cup. Red indicates unqualified and green indicates qualified. S3: Based on the position on the display, the controller controls the three-dimensional sorting module (2) to move to the designated position to mark or remove the unqualified thermos cups, and put the qualified cups into the qualified area, and the inspection is completed.

6. The detection method for a batch temperature measurement and vacuum degree detection device for thermos cups according to claim 1, characterized in that, Based on the second option, including: Step 1: Collect infrared image data of the heated thermos cup; Step 2: Use labelImage software to annotate infrared image data; Step 3: Construct a target detection model for the thermos cup based on YOLOv5; Step 4: Use infrared image data to train and obtain a thermos cup target detection model; Step 5: Obtain the coordinates of each thermos cup based on the trained thermos cup target detection model; Step 6: Based on the coordinates of the thermos cup, call the infrared temperature measurement camera SDK to collect temperature sequence data during the cooling process of the thermos cup; Step 7: Construct a thermos cup insulation performance classification model based on LSTM; Step 8: Use temperature sequence data to train and obtain a thermos cup insulation performance classification model; Step 9: Use the aforementioned thermos cup target detection model and thermos cup insulation classification model to detect the thermos cup to be tested, and output the thermos cup classification results, including: Step 9-1: Remove the thermos cup heating frame at 300 degrees Celsius, place the entire thermos cup frame on the test tray in the infrared temperature measurement area, adjust the infrared camera to take a picture of the thermos cup frame, and call the thermos cup target detection model to output the coordinate information of all thermos cups. Step 9-2: Call the infrared temperature measurement camera SDK according to the coordinates of the thermos cup to collect the temperature sequence data during the cooling process of the thermos cup. Input the temperature sequence data into the thermos cup insulation performance classification model. The thermos cup insulation performance classification model outputs whether the thermos cup is qualified and ends the test.

7. The detection method for a batch temperature measurement and vacuum degree detection device for thermos cups as described in claim 6, characterized in that, Based on the second approach, the target detection model for the thermos cup built on YOLOv5 includes: Step 3-1: Dataset creation. Use an infrared camera to take pictures of the heated thermos cup from multiple angles to obtain original images that meet the conditions. Based on the original images, perform supervised blurring, random cropping, noise addition, random erasure, flipping, brightness transformation and sharpening operations on the samples to expand the dataset. Step 3-2: The YOLOv5 detection algorithm is based on the fundamental YOLOv5s network. The network model performs three main operations at the input: Mosaic data augmentation, adaptive anchor box calculation, and adaptive image scaling. In the backbone network, a Focus structure and a CSP structure are used. The feature fusion stage mainly borrows from PANet, employing an FPN+PAN structure. The FPN structure uses upsampling to fuse feature information from top to bottom, while the PAN structure uses a bottom-up pyramid structure to fuse feature information through downsampling. The prediction output continues the previous YOLO approach, simultaneously outputting prediction maps at three scales, suitable for detecting small, medium, and large targets respectively. Step 3-3: Network Model Evaluation. Multiple metrics are used to evaluate the performance of the YOLOv5s algorithm in object detection algorithms. These metrics include precision (P), recall (R), mean precision (mAP), harmonic mean (F1), and time taken to detect a single image. Among these, mAP and time taken to detect a single image are the most important evaluation metrics, measuring the algorithm's accuracy and speed. The calculation expressions for precision (P), recall (R), mean precision (mAP), and harmonic mean (F1) are shown below: In the formula: TP represents the number of true positive samples, FP represents the number of false positive samples, FN represents the number of false positive samples, and N represents the number of categories in the sample.

8. The detection method for a batch temperature measurement and vacuum degree detection device for thermos cups as described in claim 6, characterized in that, Based on the second approach, the LSTM-based model for classifying the heat retention properties of thermos cups includes: Step 7-1: Data Acquisition and Preprocessing. Using the infrared camera SDK, temperature information during the cooling process of the thermos cup is acquired based on the coordinates of the thermos cup generated by the target detection model. The temperature data features are normalized, and time series samples are generated from the data stream. T is the length of the original data, which is the length of the entire long time sequence, i.e., the total number of frames in the entire dataset; Step 7-2: Adaptive network layer number design. The number of layers in the network model is designed based on the integral order of the training dataset sequence. The difference sequence is a sequence... The new sequence obtained by the pairwise difference of any two adjacent numbers is denoted as . Difference the difference sequence again to obtain the second-order difference sequence, denoted as . Similarly, the d-th order difference sequence is denoted as... The order d of integration is the number of times the sequence is stationary with at least a few differences. The indicators for judging whether a sequence is stationary are the autocorrelation coefficient (ACF) and the partial correlation coefficient (PACF). The calculation methods for ACF and PACF are shown in the following formulas: Step 7-3: Design the network model. Let the hyperparameter of the number of layers in the neural network model be k = d + 2, where d is the order of the training set sequence. The overall structure is a k-layer end-to-end RNN recurrent neural network with LSTM as the neural network unit. A three-layer fully connected network is used to classify the features extracted in the last time step of the last layer of the RNN. The final three fully connected layers are to achieve a non-linear mapping from the extracted features to the sequence category. In addition, Batch-Normalization layers are added between the vertical and horizontal directions of the LSTM network layers to reduce the coupling between network layers and speed up the network convergence. To prevent overfitting, Dropout layers are added between the vertical layers of the LSTM network and on the fully connected fc-layer.

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