A minimum film forming temperature tester with visual recognition function

Abstract

The invention discloses a minimum film-forming temperature tester with a visual recognition function, wherein a temperature gradient plate, a transparent sealing cover, a sliding resistor, a display screen, a shooting mechanism and a processor are arranged on a base; a plurality of temperature sensors are arranged at the bottom of the temperature gradient plate, and a refrigerator and a heater are respectively connected to two sides of the temperature gradient plate; the transparent sealing cover is used for sealing and covering the temperature gradient plate; the sliding resistor comprises a resistor guide rail and a detection slider, and the sliding of the detection slider is used for determining the shooting position; the shooting mechanism is slidably mounted on the transparent sealing cover and linked with the detection slider, and the shooting mechanism is used for shooting image information and sending it to the processor; the processor is used for determining the film-forming position of the test sample and displaying the film-forming temperature on the display screen; therefore, this scheme realizes the automatic determination of the film-forming temperature and the automatic display of the film-forming temperature, and the accuracy and efficiency of the test can be greatly improved, which effectively solves the problem of low test accuracy in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of minimum film forming temperature testing, and in particular to a minimum film forming temperature tester with a visual recognition function. Background Art

[0002] Emulsions, coatings and polymer dispersions for plastics are important components of polymer materials such as coatings and adhesives. Their film-forming properties directly affect the drying properties of the final product, so it is very necessary to understand their minimum film-forming temperature.

[0003] However, the current film formation position is observed by the operator with the naked eye, so it is difficult to make misjudgments, resulting in low test accuracy. Therefore, a technical solution that can solve this problem is urgently needed. Summary of the invention

[0004] The purpose of the present invention is to provide a minimum film forming temperature tester with a visual recognition function to solve the problem of low test accuracy in the prior art.

[0005] In order to solve the above technical problems, the present invention provides a minimum film forming temperature tester with a visual recognition function, wherein a temperature gradient plate, a transparent sealing cover, a sliding resistor, a display screen, a shooting mechanism, a memory and a processor are arranged on the base of the minimum film forming temperature tester; a plurality of temperature sensors are arranged at the bottom of the temperature gradient plate along its length direction, a refrigerator is connected to the end of one side of the temperature gradient plate, and a heater is connected to the end of the other side of the temperature gradient plate; the transparent sealing cover is rotatably connected to the base, and the rotation and closure of the transparent sealing cover is used to seal and cover the temperature gradient plate; the sliding resistor comprises a resistance guide rail, and a detection slider electrically slidably mounted on the resistance guide rail, the resistance guide rail is extended and arranged along the length direction of the temperature gradient plate, and the detection slider is arranged in the area covered by the sealing cover. Outside the domain, the sliding of the detection slider is used to change the resistance value of the sliding resistor, and the resistance value of the sliding resistor is used by the processor to determine the shooting position of the shooting mechanism; the shooting mechanism is slidably installed on the transparent sealing cover, and the sliding trajectory of the shooting mechanism is consistent with the length direction of the temperature gradient plate. The shooting mechanism and the detection slider are detachably connected, and the shooting mechanism is used to shoot image information and send it to the processor; a film formation position recognition program is stored in the memory; after receiving the image information, the processor is used to call the film formation position recognition program, and the film formation position recognition program determines the film formation position of the test sample according to the image information. After determining that the film formation position is obtained, the processor retrieves the temperature information of the film formation position and displays it on the display screen.

[0006] In one embodiment, the film forming position identification program compares the image information taken at each position with a standard film forming position shape reference value, and determines the film forming position according to the image information with the highest similarity.

[0007] In one embodiment, a plurality of temperature gradient plates are arranged side by side, a plurality of temperature sensors are provided at the bottom of the plurality of temperature gradient plates along their length direction, the ends of the plurality of temperature gradient plates on the same side are connected to the refrigerator, and the ends of the plurality of temperature gradient plates on the other side are connected to the heater; the shooting mechanism includes a plurality of shooting areas, and the plurality of shooting areas are respectively aligned with the plurality of temperature gradient plates, the film forming position recognition program compares the image information shot by the plurality of shooting areas with the standard film forming position shape reference value, and determines the film forming positions on the plurality of temperature gradient plates according to the image information with the highest similarity.

[0008] In one embodiment, there are multiple refrigerators, and the multiple refrigerators are respectively connected to the ends of the same side of the multiple temperature gradient plates, the cooling temperatures of the multiple refrigerators are individually regulated, and the ends on the other side of the multiple temperature gradient plates are connected to the same heater.

[0009] In one of the embodiments, the transparent sealing cover includes a frame and a transparent plate; the frame surrounds the outside of the circumference of the transparent plate, and the inner side of the frame is provided with a guide rail groove, and the guide rail groove extends along the length direction of the temperature gradient plate; the shooting mechanism includes a sliding bracket and an industrial camera, the sliding bracket is slidably installed in the guide rail groove, the industrial camera is arranged on the sliding bracket, and the shooting area of ​​the industrial camera is aligned with the transparent plate; when the transparent sealing cover covers the temperature gradient plate, the transparent plate is placed between the sliding bracket and the temperature gradient plate.

[0010] In one embodiment, the two guide rail grooves are respectively arranged on two opposite inner side surfaces of the frame, rollers are provided on both sides of the sliding bracket, and the rollers on both sides of the sliding bracket are respectively slidably installed in the two guide rail grooves.

[0011] In one of the embodiments, a card slot is provided on the detection slider, a card block is provided on the sliding bracket, and the card block and the card slot are connected in a plug-in manner.

[0012] In one of the embodiments, two opposite inner sides of the frame are provided with light boards, and the light boards are extended along the length direction of the temperature gradient plate.

[0013] In one embodiment, the base is further provided with an air outlet and an air pipe interface, the air outlet is arranged in the space covered by the transparent sealing cover, and the air pipe interface is arranged outside the space covered by the transparent sealing cover; the minimum film forming temperature tester also includes a drying mechanism, which includes an air compressor, a pressure switch, an air storage tank, an oil-water separator, a drying bottle, a pressure regulating valve and a throttle valve, the output end of the air compressor is connected and conducted with the input end of the pressure switch, the output end of the pressure switch is connected and conducted with the input end of the air storage tank, the output end of the air storage tank is connected and conducted with the input end of the oil-water separator, the output end of the oil-water separator is connected and conducted with the input end of the drying bottle, the output end of the drying bottle is connected and conducted with the input end of the pressure regulating valve, the output end of the pressure regulating valve is connected and conducted with the input end of the throttle valve, and the output end of the throttle valve is connected and conducted with the air pipe interface.

[0014] In one embodiment, the refrigerator is a semiconductor refrigeration plate; the base is also provided with a water cooling pipe, a water inlet and a water outlet, the water cooling pipe is arranged inside the base, the two ends of the water cooling pipe are respectively connected to the water inlet and the water outlet, and the water cooling pipe abuts against the heating side of the semiconductor refrigeration plate; the minimum film forming temperature tester also includes a heat dissipation mechanism, the heat dissipation mechanism includes a water tank, a circulating water pump, a flow switch, a condenser and a fan, the water inlet end of the water tank is connected to the water outlet, the water outlet end of the water tank is connected to the water inlet end of the circulating water pump, the water outlet end of the circulating water pump is connected to the water inlet end of the flow switch, the water outlet end of the flow switch is connected to the water inlet end of the condenser, the water outlet end of the condenser is connected to the water inlet, and the air supply direction of the fan is aligned with the condenser.

[0015] The beneficial effects of the present invention are as follows:

[0016] After receiving the image information, the processor is used to call the film forming position identification program, and the film forming position identification program determines the film forming position of the test sample according to the image information. After determining that the film forming position is obtained, the processor retrieves the temperature information of the film forming position and displays it on the display screen. Therefore, this solution realizes the automatic determination of the film forming temperature, as well as the automatic display and recording of the film forming temperature. The accuracy and efficiency of the test can be greatly improved, which effectively solves the problem of low test accuracy in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram provided by an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A partial perspective structural diagram of ;

[0020] Figure 3 yes Figure 1 Schematic diagram of a transparent sealing cover in an open state;

[0021] Figure 4 yes Figure 1 A rear view structural schematic diagram of the invention;

[0022] Figure 5 yes Figure 1 Schematic diagram of the temperature gradient plate structure;

[0023] Figure 6 is a schematic structural diagram of a drying mechanism provided by an embodiment of the present invention;

[0024] Figure 7 is a schematic diagram of the external structure of the heat dissipation mechanism provided by an embodiment of the present invention;

[0025] Figure 8 It is a schematic diagram of the principle structure of the heat dissipation mechanism provided by an embodiment of the present invention;

[0026] Fig. 9 It is a schematic diagram of a detection slider control method provided by an embodiment of the present invention.

[0027] The reference numerals are as follows:

[0028] 10. Base; 11. Air outlet; 12. Air pipe interface; 13. Water inlet; 14. Water outlet;

[0029] 20. Temperature gradient plate; 21. Temperature sensor; 22. Refrigerator; 23. Heater;

[0030] 30. Transparent sealing cover; 31. Frame; 32. Transparent plate; 33. Guide rail groove; 34. Light board;

[0031] 40. Sliding resistor; 41. Resistor guide rail; 42. Detection slider; 43. Card slot;

[0032] 50. Display screen;

[0033] 60. Shooting mechanism; 61. Sliding bracket; 62. Industrial camera; 63. Roller; 64. Block;

[0034] 70. Drying mechanism; 71. Air compressor; 72. Pressure switch; 73. Air storage tank; 74. Oil-water separator; 75. Drying bottle; 76. Pressure regulating valve; 77. Throttle valve;

[0035] 80. heat dissipation mechanism; 81. water tank; 82. circulating water pump; 83. flow switch; 84. condenser; 85. fan;

[0036] 91. Synchronous motor; 92. Synchronous belt; 93. Synchronous pulley. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] The present invention provides a minimum film forming temperature tester with a visual recognition function, which can be implemented as follows: Figures 1 to 5 As shown, a temperature gradient plate 20, a transparent sealing cover 30, a sliding resistor 40, a display screen 50, a shooting mechanism 60, a memory (not shown) and a processor (not shown) are arranged on the base 10 of the minimum film forming temperature tester; a plurality of temperature sensors 21 are arranged at the bottom of the temperature gradient plate 20 along its length direction, a refrigerator 22 is connected to the end of one side of the temperature gradient plate 20, and a heater 23 is connected to the end of the other side of the temperature gradient plate 20; the transparent sealing cover 30 is rotatably connected to the base 10, and the rotation and closing of the transparent sealing cover 30 is used to seal and cover the temperature gradient plate 20; the sliding resistor 40 includes a resistor rail 41, and a detection slider 42 electrically slidably mounted on the resistor rail 41, the resistor rail 41 is extended along the length direction of the temperature gradient plate 20, and the detection slider 42 It is arranged outside the area covered by the sealing cover, and the sliding of the detection slider 42 is used to change the resistance value of the sliding resistor 40, and the resistance value of the sliding resistor 40 is used for the processor to determine the shooting position of the shooting mechanism 60; the shooting mechanism 60 is slidably installed on the transparent sealing cover 30, and the sliding trajectory of the shooting mechanism 60 is consistent with the length direction of the temperature gradient plate 20. The shooting mechanism 60 and the detection slider 42 are detachably connected, and the shooting mechanism 60 is used to shoot image information and send it to the processor; a film formation position recognition program is stored in the memory; after the processor receives the image information, the processor is used to call the film formation position recognition program, and the film formation position recognition program determines the film formation position of the test sample according to the image information. After determining that the film formation position is obtained, the processor retrieves the temperature information of the film formation position and displays it on the display screen 50.

[0039] When applying, the transparent sealing cover 30 can be opened, the refrigerator 22 can be controlled to cool, and the heater 23 can be controlled to heat, so a temperature gradient can be formed on the temperature gradient plate 20. After the temperature of the temperature gradient plate is stable, the sample can be coated on the temperature gradient plate 20, and then the transparent sealing cover 30 is closed. The operator then drives the shooting mechanism 60 and the detection slider 42 to move together (such as from left to right), so that the film formation conditions of the sample at various locations on the temperature gradient plate 20 can be photographed to form image information. Finally, the processor calls the film formation position recognition program to accurately know the film formation position and film formation temperature of the sample. The operator only needs to observe the display screen 50 to know the film formation temperature of the sample. The whole process eliminates manual judgment and the judgment is more accurate, thereby effectively solving the problem of low testing accuracy in the prior art and realizing unmanned operation.

[0040] Of course, in addition to manual operation, the minimum film forming temperature tester can also realize full automatic operation, such as Fig. 9 As shown, the minimum film forming temperature tester also includes a synchronous motor 91, a synchronous belt 92 and a synchronous wheel 93. The output shaft of the synchronous motor 91 is coaxially arranged with the synchronous wheel 93 to drive the synchronous wheel 93 to rotate. The synchronous belt 92 is sleeved outside the synchronous wheel 93, and the synchronous belt 92 is connected and fixed to the detection slider 42. Therefore, when the synchronous motor 91 drives the synchronous wheel 93 to rotate clockwise or counterclockwise, the horizontal movement control of the detection slider 42 can be achieved through the synchronous belt 92, thereby completely replacing manual operation, which not only makes the operation more convenient, but also improves the accuracy of detection.

[0041] It should be pointed out that this embodiment preferably sets thirteen temperature sensors 21 on the bottom surface of the temperature gradient plate 20, which are defined as the first temperature sensor, the second temperature sensor, etc. from left to right; and defines that there are thirteen temperature detection areas in the temperature gradient plate 20, which are defined as the first temperature detection area, the second temperature detection area, etc. from left to right; and defines that the sliding resistor 40 has thirteen resistance areas, which are defined as the first resistance area, the second resistance area, etc. from left to right; so in the process of moving the shooting mechanism 60, the shooting mechanism 60 will shoot all the thirteen temperature detection areas. For example, if it is determined that the sample has achieved film formation in the first temperature detection area, the temperature detected by the first temperature sensor will be the film formation temperature of the sample, and then the temperature information measured by the first temperature sensor can be displayed on the display screen 50.

[0042] In this embodiment, a film forming position recognition program is preferably configured to compare the image information captured at each position with the standard film forming position shape reference value, and determine the film forming position based on the image information with the highest similarity.

[0043] For example, as described above, this embodiment will take pictures in thirteen temperature detection areas, so the shooting mechanism 60 will generate thirteen image information. Since the standard film forming position shape reference value is set in advance according to the film forming characteristics, after comparing the thirteen image information with the standard film forming position shape reference value one by one, the position with the highest similarity will be the film forming position of the sample, so as to determine in which temperature detection area the sample is film-formed, and then call the information detected by the temperature sensor 21 in this area.

[0044] It should also be pointed out that the memory of this embodiment is also used to store pictures with timestamp information to form continuous and valuable records. For example, when in application, the shooting mechanism 60 will shoot different image information at different time periods. Therefore, after observing the images shot at different times, the operator can know the changes in the sample during the film forming process, thereby providing more information for the study of the film forming performance of the sample.

[0045] like Figure 1 , Figure 3 and Figure 5 As shown, a plurality of temperature gradient plates 20 are arranged side by side, a plurality of temperature sensors 21 are provided at the bottom of the plurality of temperature gradient plates 20 along their length direction, a refrigerator 22 is connected to the ends of the plurality of temperature gradient plates 20 on the same side, and a heater 23 is connected to the ends of the plurality of temperature gradient plates 20 on the other side; the shooting mechanism 60 includes a plurality of shooting areas, and the plurality of shooting areas are respectively aligned with the plurality of temperature gradient plates 20, and the film forming position recognition program compares the image information shot by the plurality of shooting areas with the standard film forming position shape reference value, and determines the film forming positions on the plurality of temperature gradient plates 20 according to the image information with the highest similarity.

[0046] After adopting this setting, multiple samples can be coated on multiple temperature gradient plates 20 at the same time. For example, there are three temperature gradient plates 20 in this embodiment, so it is possible to achieve simultaneous film formation testing of three samples, thereby greatly improving the detection efficiency.

[0047] It should be pointed out that in order to achieve synchronous shooting of the three temperature gradient plates 20, the shooting mechanism 60 of this embodiment is provided with three shooting areas, and the three shooting areas are respectively aimed at the three temperature gradient plates 20. During the movement of the shooting mechanism 60, the three shooting areas will respectively shoot the three temperature gradient plates 20, thereby generating three sets of image information corresponding to the three temperature gradient plates 20. Then, each set of image information is compared with the standard film forming position shape reference value, and the film forming position on the three temperature gradient plates 20 is obtained. Finally, the corresponding film forming temperature can be displayed on the display screen 50 according to the three film forming positions.

[0048] like Figure 5As shown, there are multiple refrigerators 22, and the multiple refrigerators 22 are respectively connected to the ends of the same side of the multiple temperature gradient plates 20, the cooling temperatures of the multiple refrigerators 22 are individually adjusted, and the ends of the other side of the multiple temperature gradient plates 20 are connected to the same heater 23.

[0049] After adopting this setting method, the heater 23 can provide the same heat to multiple temperature gradient plates 20, and then control multiple refrigerators 22 to provide the same or different cooling capacity to the multiple temperature gradient plates 20. In particular, when the cooling temperatures of the multiple refrigerators 22 are different, different temperature steps can be formed on the multiple temperature gradient plates 20. At this time, the same sample can be tested under different temperature gradients, and different samples can be tested under different temperature gradients, thereby making the testing method more flexible. For solutions that simulate multiple testing environments, the testing efficiency is greatly improved.

[0050] like Figure 1 As shown, the transparent sealing cover 30 includes a frame 31 and a transparent plate 32; the frame 31 surrounds the outside of the peripheral side of the transparent plate 32, and the inner side surface of the frame 31 is provided with a guide groove 33, and the guide groove 33 is extended along the length direction of the temperature gradient plate 20; the shooting mechanism 60 includes a sliding bracket 61 and an industrial camera 62, the sliding bracket 61 is slidably installed in the guide groove 33, the industrial camera 62 is arranged on the sliding bracket 61, and the shooting area of ​​the industrial camera 62 is aligned with the transparent plate 32; when the transparent sealing cover 30 covers the temperature gradient plate 20, the transparent plate 32 is placed between the sliding bracket 61 and the temperature gradient plate 20.

[0051] After adopting this setting method, the industrial camera 62 will be able to accurately obtain image information, and the cooperation between the guide groove 33 and the sliding bracket 61 realizes the mobile shooting of the industrial camera 62; among them, in order to ensure the stable movement of the industrial camera 62, this embodiment preferably arranges the two guide grooves 33 on the two opposite inner sides of the frame 31, and rollers 63 are provided on both sides of the sliding bracket 61. The rollers 63 on both sides of the sliding bracket 61 are respectively slidably installed in the two guide grooves 33, thereby ensuring the stable movement and support of the two sides of the industrial camera 62, providing important quality assurance for the captured image information.

[0052] like Figures 1 to 3 As shown, a card slot 43 is provided on the detection slider 42 , and a card block 64 is provided on the sliding bracket 61 . The card block 64 and the card slot 43 are connected in a plug-in manner.

[0053] After adopting this setting method, as long as the card slot 43 is aligned with the card block 64, the detection slider 42 and the sliding bracket 61 can be linked and connected after the transparent sealing cover 30 is closed, thereby ensuring that the industrial camera 62 and the detection slider 42 can move synchronously, providing an important guarantee for the accurate detection of the film forming temperature.

[0054] like Figure 3 As shown, two opposite inner sides of the frame 31 are provided with lamp panels 34 , and the lamp panels 34 are extended along the length direction of the temperature gradient plate 20 .

[0055] After setting up the light board 34, it can ensure that the sample can be fully illuminated. This not only makes it convenient for the operator to observe the film formation of the sample, but also ensures that the image information captured by the industrial camera 62 is prepared correctly, providing an important guarantee for the accurate detection of the film formation temperature.

[0056] like Figure 1 , Figure 3 , Figure 4 and Figure 7 As shown, the base 10 is also provided with an air outlet 11 and an air pipe interface 12, the air outlet 11 is arranged in the space covered by the transparent sealing cover 30, and the air pipe interface 12 is arranged outside the space covered by the transparent sealing cover 30; the minimum film forming temperature tester also includes a drying mechanism 70, the drying mechanism 70 includes an air compressor 71, a pressure switch 72, an air storage tank 73, an oil-water separator 74, a drying bottle 75, a pressure regulating valve 76 and a throttle valve 77, the output end of the air compressor 71 is connected to the pressure switch The input end of the pressure switch 72 is connected and conducted, the output end of the pressure switch 72 is connected and conducted with the input end of the air tank 73, the output end of the air tank 73 is connected and conducted with the input end of the oil-water separator 74, the output end of the oil-water separator 74 is connected and conducted with the input end of the drying bottle 75, the output end of the drying bottle 75 is connected and conducted with the input end of the pressure regulating valve 76, the output end of the pressure regulating valve 76 is connected and conducted with the input end of the throttle valve 77, and the output end of the throttle valve 77 is connected and conducted with the trachea interface 12.

[0057] After the drying mechanism 70 is added, it can be ensured that the film-forming environment of the sample is in a low dew point state, providing a most suitable environment for the film-forming quality of the sample; specifically, at this time, the air compressor 71 generates high-pressure gas which is sent to the gas storage tank 73 for storage after passing through the pressure switch 72, and then the gas storage tank 73 can send the high-pressure gas to the oil-water separator 74 and the drying bottle 75 for drying treatment. After the gas is fully dried, it can be subjected to pressure-stabilizing and throttling treatment through the pressure-stabilizing valve 76 and the throttle valve 77, so as to output dry and stable gas to the space enclosed by the transparent sealing cover 30, so as to provide the most suitable environment for the film-forming of the sample.

[0058] like Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the refrigerator 22 is a semiconductor refrigeration plate; the base 10 is also provided with a water cooling pipe (not shown), a water inlet 13 and a water outlet 14, the water cooling pipe is arranged inside the base 10, and the two ends of the water cooling pipe are respectively connected to the water inlet 13 and the water outlet 14, and the water cooling pipe abuts the heating side of the semiconductor refrigeration plate; the minimum film forming temperature tester also includes a heat dissipation mechanism 80, the heat dissipation mechanism 80 includes a water tank 81, a circulating water pump 82, a flow switch 83, a condenser 84 and a fan 85, the water inlet end of the water tank 81 is connected to the water outlet 14, the water outlet end of the water tank 81 is connected to the water inlet end of the circulating water pump 82, the water outlet end of the circulating water pump 82 is connected to the water inlet end of the flow switch 83, the water outlet end of the flow switch 83 is connected to the water inlet end of the condenser 84, the water outlet end of the condenser 84 is connected to the water inlet 13, and the air supply direction of the fan 85 is aligned with the condenser 84.

[0059] After adding the heat dissipation mechanism 80, it will be ensured that the heat generated by the semiconductor refrigeration plate can be discharged in time, so that the cooling effect of the semiconductor refrigeration plate can be best guaranteed; specifically, the water tank 81 is used to store water at this time, and then the circulating water pump 82 draws water from the water tank 81 to the condenser 84 for condensation treatment, and during the water delivery process, the flow control is realized by the flow switch 83, and the condensed water will be sent to the water cooling pipe to absorb the heat generated by the semiconductor refrigeration plate, and finally the heated water will be sent back to the water tank 81 for recycling; among them, at this time, the fan 85 can dissipate heat to the condenser 84 at all times, and also ensure the condensation effect of the condenser 84.

[0060] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A minimum film forming temperature tester with visual recognition function, characterized in that: The base of the minimum film forming temperature tester is provided with a temperature gradient plate, a transparent sealing cover, a sliding resistor, a display screen, a shooting mechanism, a memory and a processor; A plurality of temperature sensors are provided at the bottom of the temperature gradient plate along its length direction, a refrigerator is connected to one end of the temperature gradient plate, and a heater is connected to the other end of the temperature gradient plate; The transparent sealing cover is rotatably connected to the base, and the transparent sealing cover is rotated and closed to seal and cover the temperature gradient plate; The sliding resistor comprises a resistance rail and a detection slider electrically and slidably mounted on the resistance rail, wherein the resistance rail is extended along the length direction of the temperature gradient plate, and the detection slider is arranged outside the area covered by the sealing cover, and the sliding of the detection slider is used to change the resistance value of the sliding resistor, and the resistance value of the sliding resistor is used by the processor to determine the shooting position of the shooting mechanism; The photographing mechanism is slidably mounted on the transparent sealing cover, the sliding track of the photographing mechanism is consistent with the length direction of the temperature gradient plate, the photographing mechanism is detachably connected to the detection slider, and the photographing mechanism is used to photograph image information and send it to the processor; The memory stores a film forming position recognition program; After receiving the image information, the processor is used to call the film forming position recognition program, and the film forming position recognition program determines the film forming position of the test sample according to the image information. After determining and obtaining the film forming position, the processor retrieves the temperature information of the film forming position and displays it on the display screen; The minimum film forming temperature tester also includes a synchronous motor, a synchronous belt and a synchronous wheel. The output shaft of the synchronous motor is coaxially arranged with the synchronous wheel to drive the synchronous wheel to rotate. The synchronous belt is sleeved outside the synchronous wheel and is connected and fixed to the detection slider.

2. The minimum film forming temperature tester according to claim 1, characterized in that: The film forming position recognition program compares the image information taken at each position with the standard film forming position shape reference value, and determines the film forming position according to the image information with the highest similarity.

3. The minimum film forming temperature tester according to claim 2, characterized in that: A plurality of temperature gradient plates are arranged side by side, a plurality of temperature sensors are provided at the bottom of the plurality of temperature gradient plates along the length direction thereof, the ends of the plurality of temperature gradient plates on the same side are connected to the refrigerator, and the ends of the plurality of temperature gradient plates on the other side are connected to the heater; The shooting mechanism includes multiple shooting areas, and the multiple shooting areas are respectively aligned with the multiple temperature gradient plates. The film forming position recognition program compares the image information shot by the multiple shooting areas with the standard film forming position shape reference value, and determines the film forming positions on the multiple temperature gradient plates based on the image information with the highest similarity.

4. The minimum film forming temperature tester according to claim 3, characterized in that: There are multiple refrigerators, and the multiple refrigerators are respectively connected to the ends of the same side of the multiple temperature gradient plates. The cooling temperatures of the multiple refrigerators are individually regulated, and the ends on the other side of the multiple temperature gradient plates are connected to the same heater.

5. The minimum film forming temperature tester according to claim 1, characterized in that: The transparent sealing cover comprises a frame and a transparent plate; The frame surrounds the outside of the circumference of the transparent plate, and the inner side of the frame is provided with a guide rail groove, and the guide rail groove is extended along the length direction of the temperature gradient plate; The shooting mechanism comprises a sliding bracket and an industrial camera, wherein the sliding bracket is slidably mounted in the guide rail groove, the industrial camera is arranged on the sliding bracket, and the shooting area of ​​the industrial camera is aligned with the transparent plate; When the transparent sealing cover covers the temperature gradient plate, the transparent plate is placed between the sliding bracket and the temperature gradient plate.

6. The minimum film forming temperature tester according to claim 5, characterized in that: The two guide rail grooves are respectively arranged on two opposite inner side surfaces of the frame, and rollers are arranged on both sides of the sliding bracket. The rollers on both sides of the sliding bracket are respectively slidably installed in the two guide rail grooves.

7. The minimum film forming temperature tester according to claim 5, characterized in that: The detection slide block is provided with a card slot, the sliding bracket is provided with a card block, and the card block and the card slot are connected in a plug-in manner.

8. The minimum film forming temperature tester according to claim 5, characterized in that: Two opposite inner sides of the frame are each provided with a light board, and the light board is extended and arranged along the length direction of the temperature gradient plate.

9. The minimum film forming temperature tester according to claim 1, characterized in that: The base is also provided with an air outlet and an air pipe interface, wherein the air outlet is arranged in the space covered by the transparent sealing cover, and the air pipe interface is arranged outside the space covered by the transparent sealing cover; The minimum film forming temperature tester also includes a drying mechanism, which includes an air compressor, a pressure switch, an air tank, an oil-water separator, a drying bottle, a pressure regulating valve and a throttle valve. The output end of the air compressor is connected and conducted with the input end of the pressure switch, the output end of the pressure switch is connected and conducted with the input end of the air tank, the output end of the air tank is connected and conducted with the input end of the oil-water separator, the output end of the oil-water separator is connected and conducted with the input end of the drying bottle, the output end of the drying bottle is connected and conducted with the input end of the pressure regulating valve, the output end of the pressure regulating valve is connected and conducted with the input end of the throttle valve, and the output end of the throttle valve is connected and conducted with the air pipe interface.

10. The minimum film forming temperature tester according to claim 1, characterized in that: The refrigerator is a semiconductor refrigeration sheet; The base is also provided with a water cooling pipe, a water inlet and a water outlet, the water cooling pipe is arranged inside the base, the two ends of the water cooling pipe are respectively connected to the water inlet and the water outlet, and the water cooling pipe abuts against the heating side of the semiconductor refrigeration plate; The minimum film forming temperature tester also includes a heat dissipation mechanism, which includes a water tank, a circulating water pump, a flow switch, a condenser and a fan. The water inlet end of the water tank is connected and conducted to the water outlet, the water outlet end of the water tank is connected and conducted to the water inlet end of the circulating water pump, the water outlet end of the circulating water pump is connected and conducted to the water inlet end of the flow switch, the water outlet end of the flow switch is connected and conducted to the water inlet end of the condenser, the water outlet end of the condenser is connected and conducted to the water inlet, and the air supply direction of the fan is aligned with the condenser.

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