Evaporation rate testing apparatus

Abstract

The present application belongs to the technical field of evaporation rate experimental equipment, and particularly relates to an evaporation rate testing device, which comprises a carrier turntable, a sample carrier, a weighing module and a material taking module. A plurality of carrier clamping grooves are uniformly arranged around the carrier turntable. The sample carrier is movably sleeved in the carrier clamping groove. The top of the sample carrier is provided with a magnetic plate on the left and right sides. The side of the sample carrier is provided with a clamping module. The material taking module comprises a lifting platform. The bottom of the lifting platform is provided with a grabbing assembly. The material taking module of embodiment 2 can further reduce the moving distance of the test sample, but the difficulty of equipment assembly and debugging is higher. Each sample carrier in the evaporation rate testing device can be individually taken and placed by the material taking module, which facilitates independent setting of the weighing frequency of each sample, helps to improve the detection data accuracy and simplify the equipment operation, and has significant substantial characteristics.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of evaporation rate test equipment, in particular to evaporation rate test equipment. BACKGROUND

[0002] Evaporation rate refers to the evaporation mass per unit time in the linear interval of the time-evaporation amount curve after a certain amount of water droplets is placed on a sample and suspended in the marked atmosphere.

[0003] Current evaporation rate testers are mostly composed of a sample carrier turntable, a weighing device, and 5 or 10 sample carriers. The sample carrier turntable can perform rotary motion and horizontal up-down motion. The sample carriers are hung on the sample carrier turntable, and sampling is performed on each sample at the sampling interval required by the user. The sampling process is as follows:

[0004] 1. Place all the weighing carriers in the corresponding carrier turntable positions.

[0005] 2. Use the jig weighing function, and the equipment automatically runs for one cycle and records the original weight of the jig on the computer.

[0006] 3. Hang the samples to be tested, use the original weight weighing function, the equipment automatically runs for one cycle, and records the weight of the jig + sample on the computer. The computer automatically uses this weight to subtract the previously recorded jig weight to obtain the original weight of the sample.

[0007] 4. For each sample, perform liquid dripping, and weigh each sample according to the user-set weighing interval and record the actual weight of each sample at the corresponding weighing time point.

[0008] 5. After the weighing time or the change rate of the mass of each sample taken twice in succession is not more than 1%, the weight collection is ended.

[0009] 6. The computer automatically selects the invalid weight, and uses the valid weight to make a "time-evaporation amount" curve, and calculates the tangent slope, which is the evaporation rate.

[0010] The weighing process is as follows:

[0011] The weighing module is fixed below (or above) the position of a certain sample carrier. When a certain sample needs to be weighed, the carrier turntable rotates the corresponding carrier to move above the weighing module. At this time, the entire carrier turntable is translated downward, driving all the carriers to move downward. The carrier above the weighing module will fall on (or hang on when the weighing module is fixed above) the weighing module at this time. The remaining carriers are still hanging on the carrier turntable. At this time, only one carrier falls on the weighing module, and the weighing module can weigh this carrier and record the corresponding data. When the weighing is completed, the carrier turntable is lifted horizontally, and all the carriers (including the one that has just fallen on the weighing module) are again hung on the carrier turntable. The carrier turntable is rotated to the next position again, and the cycle is repeated as described above to weigh all the carriers.

[0012] The existing technology has the following disadvantages:

[0013] 2.1 The existing technology moves all samples up and down every time a sample is weighed, increasing the movement distance of the samples and reducing the accuracy of the test.

[0014] 2.2 The existing equipment can generally only measure 5 or 10 samples at the same time, and the detection amount is small.

[0015] 2.3 The existing equipment has two stopping methods, one is standard stopping (the change rate of mass is not more than 1% for two consecutive times), and the other is set time stopping. Because the sampling interval of each sample is different, and the number of samples done each time is different, it is necessary to manually calculate how long it will take to complete this batch of samples to set the time, and some samples have n data points, while some samples have n-1 data points (the set time is up and the full sampling of the round is not completed).

[0016] Therefore, it is necessary to improve the structure of the evaporation rate testing equipment in order to improve the testing accuracy of the evaporation rate testing equipment and keep the number of data points of each sample consistent. SUMMARY

[0017] In order to solve the problem that the general evaporation rate tester on the market moves all samples up and down every time it detects, and cannot quickly calculate and confirm that each sample is detected the same number of times when measuring at a fixed time, the data precision and consistency obtained by detection need to be improved, an evaporation rate testing equipment is provided.

[0018] The application discloses an evaporation rate testing device, which comprises a carrier rotating disc, a sample carrier, a weighing module and a material taking module, a plurality of carrier clamping grooves are uniformly arranged around the carrier rotating disc, a sample carrier is movably sleeved in each carrier clamping groove, magnetic plates are arranged on the left and right sides of the top of the sample carrier, a clamping module is arranged on the side of the sample carrier, the material taking module is arranged above the carrier rotating disc, the material taking module comprises a sliding rail, a lifting platform is slidably sleeved on the sliding rail, and electromagnets are arranged on the left and right sides of the bottom of the lifting platform and correspond to the magnetic plates.

[0019] Further, the carrier clamping groove comprises front and rear symmetrical carrier sleeves, and the left and right sides of the carrier sleeve are provided with a hollow through groove.

[0020] Further, a plurality of grouping areas with the same area are arranged on the carrier rotating disc, and an equal number of carrier clamping grooves are arranged in each grouping area.

[0021] Further, the carrier rotating disc is annular, a hollow rotating platform is connected to the lower side of the carrier rotating disc through a lifting column, the weighing module is fixedly installed at the center of the carrier rotating disc, and the material taking module is installed above the carrier rotating disc and the weighing module.

[0022] Further, the clamping module comprises a clamping arm, a magnetic block is arranged at the rear of the clamping arm, and the clamping arm is magnetically attached to the side of the sample carrier through the magnetic block.

[0023] Further, the weighing module comprises a weight sensor, a carrier support is fixedly arranged on the weight sensor, support guide grooves are arranged on the left and right sides of the carrier support and correspond to the magnetic plates, the magnetic plates can be positioned and placed on the support guide grooves, a protective shell is wrapped outside the weight sensor and the carrier support, and a carrier placing groove is formed in the protective shell and corresponds to the carrier support.

[0024] Further, a lead screw motor is vertically connected in the center of the lifting platform, and a lifting guide rod is further connected to the lifting platform.

[0025] Further, the carrier rotating disc, the sample carrier, the weighing module and the material taking module are all installed on a device base, a touch display screen is arranged at the front end of the device base, the touch display screen is electrically connected with the carrier rotating disc, the weighing module and the material taking module, and a protective top cover is further installed on the device base.

[0026] Further, a number identification is arranged on the carrier clamping groove and the sample carrier, and the number identification is arranged on the top of the carrier clamping groove and the sample carrier.

[0027] The application has the following advantages:

[0028] 1. The sample carrier and the taking and placing mechanism are redesigned, each sample can be taken and weighed individually, which helps to improve the accuracy of the detection data.

[0029] 2. The magnetic attraction grabbing design moves slightly and shakes slightly, which can avoid the shaking of the sample carrier when grabbing the sample, so as to prevent the water on the sample from being shaken out, and ensure the accuracy of the data test.

[0030] 3. Since each sample can be taken and weighed independently, the experimenter can conveniently set the test times of each sample, which is convenient to operate and can avoid the problem that the test data of multiple samples are inconsistent in quantity. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0032] Figure 1 Structure diagram of one embodiment of the evaporation rate test equipment;

[0033] Figure 2 Exploded structure diagram of one embodiment of the evaporation rate test equipment;

[0034] Figure 3 Exploded structure diagram of the rear of one embodiment of the evaporation rate test equipment;

[0035] Figure 4 Detail structure diagram of the sample carrier;

[0036] Figure 5 Detail structure diagram of the carrier turntable;

[0037] Figure 6 Detail structure diagram of one embodiment of the material taking module;

[0038] Figure 7 Detail structure diagram of one embodiment of the weighing module;

[0039] Figure 8 Structure diagram of another embodiment of the evaporation rate test equipment;

[0040] Figure 9 Exploded structure diagram of another embodiment of the evaporation rate test equipment;

[0041] Figure 10 Detail structure diagram of another embodiment of the material taking module and the weighing module.

[0042] Reference Signs:

[0043] 1. carrier turntable; 101, carrier slot; 1011, carrier sleeve; 1012, emptying slot; 102, grouping area; 2, sample carrier; 201, magnetic plate; 202, clamping arm; 203, magnetic block; 3, weighing module; 301, weight sensor; 302, carrier support; 303, support guide slot; 304, weighing support; 305, permanent magnet block; 4, material taking module; 401, slide rail; 402, lifting platform; 403, electromagnet; 404, screw motor; 405, lifting guide rod; 406, rotary motor; 407, rotary plate; 408, counterweight block; 409, carrier clamping jaw; 5, lifting column; 6, hollow rotary platform; 7, protective shell; 71, carrier placing slot; 8, equipment base; 81, touch display screen; 82, protective top cover; 9, label identification; 10, sample. DETAILED DESCRIPTION

[0044] In order to solve the problem that all samples are moved up and down during each detection of the general evaporation rate tester on the market, and the same number of detections cannot be quickly calculated and confirmed for each sample during timed measurement, the data precision and consistency obtained by detection need to be improved, the evaporation rate test equipment is provided.

[0045] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0046] It should be noted that the terms such as "inner", "middle" and "one" cited in the present specification are only for the convenience of clear description, and are not used to limit the scope of implementation of the present application. The change or adjustment of the relative relationship without substantial change of technical content is also regarded as the implementation scope of the present application, and it is stated in advance.

[0047] In the description of the present application, it is understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can be explicitly or implicitly included one or more of the features. In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0048] Embodiment 1

[0049] As Figures 1 to 7 shown, the present embodiment provides an evaporation rate test device, which comprises a carrier turntable 1, a sample carrier 2, a weighing module 3 and a material taking module 4, a plurality of carrier clamping grooves 101 are uniformly arranged on the carrier turntable 1, a sample carrier 2 is movably sleeved in each carrier clamping groove 101, magnetic plates 201 are arranged on the top left and right sides of the sample carrier 2, a clamping module is arranged on the side of the sample carrier 2, and the material taking module 4 is correspondingly arranged above the carrier turntable 1. The material taking module 4 comprises a sliding rail 401, a lifting platform 402 is slidably sleeved on the sliding rail 401, and electromagnets 403 are arranged on the bottom left and right sides of the lifting platform 402 corresponding to the magnetic plates 201.

[0050] Among them, the sliding rail 401 can adopt products on the market such as RXPN40 synchronous belt module, the lifting platform 402 is installed on the sliding table of the synchronous belt module, and the movement is more accurate.

[0051] When the carrier turntable 1 rotates to the below of the sample taking module 4, the lifting platform 402 is lowered, the electromagnet 403 adsorbs the magnetic plate 201 on the left and right sides, drives the sample carrier 2 and the sample 10 to rise, then the lifting platform 402 slides along the slide rail 401 to the above of the weighing module 3, the electromagnet 403 is closed and the sample carrier 2 is placed on the weighing module 3 to complete the weighing. Finally, the sample carrier 2 is put back to the carrier slot 101 by the sample taking module 4, the carrier turntable 1 rotates to transport the next sample carrier 2 to the below of the sample taking module 4, and the cycle is repeated for several times to complete the detection work. Since the electromagnet 403 is used to switch adsorption to grasp the sample carrier 2, the shaking of the sample during movement is small, which helps to improve the data detection accuracy.

[0052] The carrier slot 101 includes a carrier sleeve 1011 symmetrically arranged front and back, and a through gap 1012 is arranged on the left and right sides of the carrier sleeve 1011. The magnetic plate 201 on the left and right sides of the sample carrier 2 is placed in the carrier sleeve 1011, and the positioning is stable; and the through gap 1012 ensures that each sample has sufficient spacing for evaporation of moisture.

[0053] The carrier turntable 1 is provided with a plurality of grouping areas 102 with the same area, and an equal number of carrier slots 101 are arranged in each grouping area 102. Each grouping area 102 can be provided with different colors to facilitate the experimental personnel to distinguish the use. Since a plurality of samples of the same product can be placed in the same grouping area 102, the equipment supports simultaneous testing of multiple products and facilitates distinguishing the placement positions of different products, and the working efficiency is high.

[0054] The carrier turntable 1 is annular, the lifting column 5 is connected with a hollow rotating platform 6 below the carrier turntable 1, the weighing module 3 is fixedly installed at the center of the carrier turntable 1, and the sample taking module 4 is correspondingly installed above the carrier turntable 1 and the weighing module 3. The hollow rotating platform 6 can adopt a product on the market such as HRG130, which is generally matched with a servo motor, which can ensure that the sample carrier 2 is positioned below the lifting platform 402 after each rotation. The lifting column 5 provides support for the carrier turntable 1, ensuring that the sample suspended on the sample carrier 2 has sufficient evaporation space. The weighing module 3 arranged in the center can save the occupied space of the equipment and reduce the external interference on the sample during taking and weighing.

[0055] The clamping module includes a clamping arm 202, a magnetic block 203 is arranged at the rear of the clamping arm 202, and the clamping arm 202 is magnetically adsorbed to the side surface of the sample carrier 2 through the magnetic block 203. The sample 10 is clamped and suspended on the sample carrier 2 by the clamping arm 202, and the magnetic design is convenient to assemble and disassemble.

[0056] The weighing module 3 comprises a weight sensor 301, a carrier support 302 is fixedly arranged on the weight sensor 301, support guide grooves 303 are arranged on the left and right sides of the carrier support 302, and the magnetic suction plate 201 can be positioned and placed on the support guide grooves 303. The carrier support 302 is arranged on the weighing module 3 corresponding to the sample carrier 2, which can ensure the stability of the sample carrier 2 during weighing. The weight sensor 301 and the carrier support 302 are wrapped with a protective shell 7, and a carrier placing groove 71 is formed in the protective shell 7 corresponding to the carrier support 302. The protective shell 7 avoids interference of foreign matters on the weighing module 3, which helps to improve the data accuracy.

[0057] The lifting platform 402 is vertically connected with a lead screw motor 404, and the lifting platform 402 is also connected with a lifting guide rod 405. The lead screw motor 404 cooperates with the lifting guide rod 405 to ensure that the lifting platform 402 can be stably lifted.

[0058] The carrier turntable 1, the sample carrier 2, the weighing module 3 and the material taking module 4 are all installed on the equipment base 8, the front end of the equipment base 8 is provided with a touch display screen 81, the touch display screen 81 is electrically connected with the carrier turntable 1, the weighing module 3 and the material taking module 4, and the equipment base 8 is also provided with a protective top cover 82. The touch display screen 81 facilitates the staff to directly set the working state of the equipment and to set the working state of the equipment, and is convenient to use. Since the present scheme does not involve the improvement of electronic components, the working principle will not be described here. The protective top cover 82 can cooperate with the equipment base 8 to protect the internal structure.

[0059] The carrier clamping groove 101 and the sample carrier 2 are both provided with a number identification 9, and the number identification 9 is arranged on the top of the carrier clamping groove 101 and the sample carrier 2. The number identification 9 on the top can be an Arabic numeral starting from 1 and increasing, such as each sample carrier 2 in each grouping area 102 has a number, which avoids the placement position of the sample carrier 2 being confused to cause deviation of detection data.

[0060] Example 2

[0061] As Figures 8 to 10As shown, the embodiment differs from embodiment 1 in that: the material taking module 4 comprises a vertical downward rotating motor 406, the output shaft of the rotating motor 406 is fixedly connected with the center of a rotating plate 407, the lifting platform 402 is installed on one side of the bottom of the rotating plate 407, a counterweight 408 is arranged on the bottom of the other side of the rotating plate 407, the grabbing assembly comprises a carrier clamp jaw 409, the weighing module 3 comprises a weight sensor 301, the weight sensor 301 is installed vertically downward on the side of the carrier clamp jaw 409, and a weighing support 304 is connected with the detection end of the weight sensor 301, and permanent magnets 305 are arranged on the left and right sides of the bottom of the weighing support 304 corresponding to the magnetic attraction plates 201.

[0062] Among them, the rotating motor 406 generally adopts a stepping motor, which ensures that the stroke of each rotation corresponds to the interval of the sample carrier 2 on the carrier turntable 1, and ensures that the material taking module 4 can be accurately positioned above each sample carrier 2. The carrier clamp jaw 409 can adopt a commonly used pneumatic clamp jaw on the market. Since the weighing module 3 and the grabbing assembly are both installed on one end of the rotating plate 407, in order for the weighing module 3 to function normally, the counterweight 408 must be used to balance the weight of the rotating plate 407 at both ends to keep it horizontal. When assembling, it also needs to be noted whether each component is installed in place to avoid the weight sensor 301 being inclined to cause inaccurate data. In addition, since the material taking module 4 and the weighing module 3 in this embodiment can rotate integrally, the hollow rotating platform 6 driving the carrier turntable 1 to rotate does not need to run when the sample is tested. In order to reduce the cost of the equipment, the hollow rotating platform 6 can even be directly omitted.

[0063] When the embodiment is running, the running steps are as follows:

[0064] 1. The lifting platform 402 descends, driving the carrier clamp jaw 409 to move downward;

[0065] 2. The carrier clamp jaw 409 clamps and holds the sample carrier 2;

[0066] 3. The lifting platform 402 rises, driving the carrier clamp jaw 409 and the sample carrier 2 to rise together to the bottom of the weighing support 304;

[0067] 4. The permanent magnets 305 on the weighing support 304 correspondingly attract the magnetic attraction plates 201 on the sample carrier 2;

[0068] 5. The carrier clamp jaw 409 is opened, at this time only the sample carrier 2 is attracted to the weighing support 304, at this time the weight sensor 301 weighs the sample carrier 2;

[0069] 6. After the weighing is completed, the carrier clamp jaw 409 clamps again and holds the sample carrier 2;

[0070] 7. The lifting platform 402 descends, causing the carrier gripper 409 and sample carrier 2 to move downwards. The permanent magnet block 305 separates from the magnetic suction plate 201, and the sample carrier 2 returns to its original lower position.

[0071] 8. The carrier gripper 409 opens, and the sample carrier 2 is placed back into the corresponding carrier slot 101;

[0072] 9. The upper rotary motor 406 steps to rotate the weight sensor 301 and the carrier gripper 409 to the next sample carrier 2, and repeats the above weighing action, thus cycling.

[0073] The specific experimental procedure for conducting evaporation rate tests is as follows:

[0074] 1. Weighing method: When a sample 10 needs to be weighed, the material taking module 4 moves to the top of the corresponding sample carrier 2, takes out the sample carrier 2 and weighs it using the weighing module 3. Then the material taking module 4 puts the sample carrier 2 back into the corresponding carrier slot 101 to weigh the next sample carrier 2.

[0075] II. Fixture Weighing: Weigh each sample carrier 2 on the carrier turntable 1 individually according to the above weighing action for one cycle, record the obtained data on the computer, and obtain the original weight data of the fixture (each fixture has a unique label 9).

[0076] 3. Sample weighing: After clamping sample 10 onto the sample carrier, weigh each sample carrier 2 + sample 10 for one cycle according to the above weighing action to obtain the weight of the sample + sample carrier. Then subtract the weight of the corresponding carrier from the weight to obtain the original weight of each sample and record it on the computer.

[0077] IV. Normal Test: For each sample with liquid added, weigh it one by one at set time intervals, and obtain the weight of each sample at different time points. The original weight of the sample + the weight of the added liquid - the weight at the current time point is used to obtain the current evaporation of the sample.

[0078] V. Evaporation Rate Calculation:

[0079] Record the original weight (mJ) of sample carrier 2 using the fixture weighing function.

[0080] Record the weight of sample 10 + sample carrier 2 using the sample weighing function (mj1).

[0081] Calculate the original weight of sample 10: m = mj1 - mj

[0082] Original weight of sample 10 + weight of droplets (mn)

[0083] After the sample droplet, the sample is weighed at the set time interval to obtain m1, m2, m3...

[0084] The water evaporation amount at each time point is calculated (mn-m1, mn-m2, mn-m3,...)

[0085] The "time-evaporation amount curve" is drawn according to the corresponding time-evaporation amount.

[0086] The tangent line is drawn for the curve to obtain the evaporation rate.

[0087] The above is a further detailed description of the present application in combination with the specific preferred embodiments, and the specific implementation of the present application should not be limited to these descriptions. Any equivalent changes and modifications made within the scope of the present application should still fall within the scope of the present application.

Claims

1. An evaporation rate testing apparatus, characterized by, The device comprises a carrier turntable, a sample carrier, a weighing module and a material taking module, the weighing module is installed on the device base, the carrier turntable is uniformly provided with a plurality of carrier slots, each of the carrier slots movably sleeves the sample carrier, the top of the sample carrier is provided with a magnetic plate on the left and right sides, the side of the sample carrier is provided with a clamping module, the material taking module is correspondingly arranged above the carrier turntable, the material taking module comprises a lifting platform, the bottom of the lifting platform is provided with a grabbing assembly corresponding to the sample carrier, the material taking module comprises a sliding rail, the lifting platform is slidably sleeved on the sliding rail, the grabbing assembly comprises an electromagnet, the electromagnet is arranged on the left and right sides of the bottom of the lifting platform corresponding to the magnetic plate, the carrier turntable is annular, the hollow rotating platform is connected to the bottom of the carrier turntable through the lifting column, the weighing module is fixedly installed at the center of the carrier turntable, the material taking module is correspondingly installed above the carrier turntable and the weighing module, the weighing module comprises a weight sensor, the weight sensor is fixedly provided with a carrier support, the left and right sides of the carrier support are provided with support guide grooves corresponding to the magnetic plates, the magnetic plates can be positioned and placed on the support guide grooves, the outside of the weight sensor and the carrier support is wrapped with a protective shell, and the protective shell is provided with a carrier placing groove corresponding to the carrier support.

2. The evaporation rate testing apparatus of claim 1, wherein, The material taking module comprises a vertical downward rotating motor, the output shaft of the rotating motor is fixedly connected with the center of the rotating plate, the lifting platform is installed on one side of the bottom of the rotating plate, the bottom of the other side of the rotating plate is provided with a counterweight, the grabbing assembly comprises a carrier clamp, the weighing module comprises a weight sensor, the weight sensor is vertically installed on the side of the carrier clamp, the detection end of the weight sensor is connected with a weighing support, and the left and right sides of the bottom of the weighing support are provided with permanent magnets corresponding to the magnetic plates.

3. The evaporation rate testing apparatus of claim 1, wherein, The clamping module comprises a clamping arm, the rear of the clamping arm is provided with a magnetic block, and the clamping arm is magnetically adsorbed to the side of the sample carrier through the magnetic block.

4. The evaporation rate testing apparatus of claim 1, wherein, The carrier slot comprises a carrier sleeve seat symmetrically arranged front and back, and the left and right sides of the carrier sleeve seat are provided with a hollow through slot.

5. The evaporation rate testing apparatus of claim 1, wherein, The carrier turntable is provided with a plurality of grouping areas with the same area, and each of the grouping areas is provided with an equal number of carrier slots.

6. The evaporation rate testing apparatus of claim 1, wherein, The central vertical of the lifting platform is connected with a lead screw motor, and the lifting platform is further connected with a lifting guide rod.

7. The evaporation rate testing apparatus of any of claims 1-6, wherein, The carrier turntable, the sample carrier and the material taking module are installed on the device base, the front end of the device base is provided with a touch display screen, the touch display screen is electrically connected with the carrier turntable, the weighing module and the material taking module, the device base is further provided with a protective top cover, the carrier slot and the sample carrier are correspondingly provided with a label, and the label is arranged on the top of the carrier slot and the sample carrier.

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