Textile hot plate method drying rate tester

Abstract

The utility model discloses a textile hot plate method drying rate tester, which comprises a shell, a temperature sensor, a temperature sensor and a controller, the heating plate is fixedly arranged in the test space, and a test surface for placing a sample is formed above the heating plate; the pressing plate is used for pressing the sample so as to fix the sample on the test surface; the liquid supply device, the temperature sensing unit and the air outlet unit are arranged in the shell, the air outlet unit comprises a fan and an air outlet formed in the testing space, the fan is used for supplying air to the air outlet, and the air outlet faces the testing surface; the air speed sensor is arranged in the testing space and corresponds to the upper portion of the testing face, air flow at the air outlet flows through the air speed sensor, the air speed sensor is used for detecting the air speed of the current position of the air speed sensor, and the liquid supply device is connected with the liquid supply hole in the heating plate, so that liquid is supplied to the inner side of a sample on the heating plate; therefore, the human body sweating scene is fully simulated, and the test authenticity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing instruments, in particular to a textile hot plate drying rate tester. Background Art

[0002] The hot plate method is an important method for testing fabric drying rate today. It mainly places the fabric on a constant temperature heating plate and contacts it with a specified volume of aqueous solution, and measures the drying rate of the fabric based on the resulting evaporation rate.

[0003] In this regard, reference may be made to the prior patent application number 201410745509.9, which specifically discloses a method for testing the drying rate of textiles, and specifically discloses that a hot plate method is implemented by setting a metal plate, a temperature sensor, an anemometer, a plunger pump, etc. However, in actual testing, this solution uses an upper plunger pump dripping method to achieve contact between the aqueous solution and the fabric. On the one hand, this method is quite different from the actual human sweating scene, and on the other hand, the plunger pump is prone to mutual influence with the infrared temperature sensor, resulting in the center of the infrared temperature sensor probe being unable to correspond to the center point of the wet area of ​​the fabric, thereby reducing the test accuracy, and therefore needs to be improved. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the purpose of the utility model is to provide a textile hot plate drying rate tester, which connects the liquid supply device with the liquid supply hole on the heating plate to achieve water contact below the sample, thereby simulating the human sweating environment. At the same time, the temperature sensing unit can be independently located above the test surface, thereby avoiding mutual influence between the liquid supply device and the temperature sensing unit, so as to improve the overall test authenticity and test accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] Textile hot plate drying rate tester, including:

[0007] a housing, wherein a test space is formed on the housing;

[0008] A heating plate, the heating plate being fixedly disposed in the test space, with a test surface formed above the heating plate for placing a sample;

[0009] A pressing plate, used for pressing the sample to fix the sample on the test surface;

[0010] A liquid supply device is provided in the housing, the heating plate is provided with a liquid supply hole corresponding to the test surface, and the output end of the liquid supply device is connected to the liquid supply hole;

[0011] A temperature sensing unit, the temperature sensing unit being arranged above the test surface and corresponding to the liquid supply hole;

[0012] An air outlet unit, comprising a fan and an air outlet arranged in the test space, wherein the fan is used to supply air to the air outlet, and the air outlet is arranged toward the test surface;

[0013] A wind speed sensor is provided in the test space and above the corresponding test surface. The airflow from the air outlet flows through the wind speed sensor, and the wind speed sensor is used to detect the wind speed at its current position.

[0014] As a further improvement of the present invention, a cover plate is hinged on the shell, and the temperature sensing unit is connected to a side of the cover plate close to the shell.

[0015] As a further improvement of the present invention, a base is provided on the cover plate, the temperature sensing unit is telescopically connected to the base, and the temperature sensing unit is telescopically movable relative to the base to adjust the distance between the temperature sensing unit and the heating plate.

[0016] As a further improvement of the present invention, a height gauge block is further included. The height gauge block is arranged between the temperature sensing unit and the sample. The two sides of the height gauge block respectively abut the temperature sensing unit and the sample. The thickness of the height gauge block is 0.9cm-1.1cm.

[0017] As a further improvement of the present invention, when the cover plate covers the shell, an air outlet gap is formed between one side of the cover plate and the shell, and the heating plate is located between the air outlet gap and the air outlet.

[0018] As a further improvement of the present invention, the liquid supply device includes a water tank and a pump body arranged in the shell, the pump body input end is connected to the water tank, and the pump body output end is provided with a capillary and connected to the liquid supply hole through the capillary.

[0019] As a further improvement of the present invention, a liquid level sensor is provided in the water tank.

[0020] As a further improvement of the present invention, a water inlet is formed at the upper end of the water tank, a box cover is provided at the water inlet, and the upper end of the water tank is connected and fixed to the shell, the shell is provided with a through hole corresponding to the water inlet, and one end of the box cover passes through the through hole and covers the water inlet.

[0021] As a further improvement of the present invention, the shell is provided with a cover corresponding to the test space, an air cavity is formed in the cover, the cover is provided with a mounting port corresponding to the heating plate and a diverter plate corresponding to the mounting port, the air outlet is a plurality of holes arranged on the air flow plate, and the fan is arranged in the air cavity and facing the mounting port.

[0022] As a further improvement of the present invention, a heat insulating plate is provided between the shell and the heating plate, and the heat insulating plate is provided with a through hole corresponding to the liquid supply hole.

[0023] Beneficial effects of the utility model:

[0024] 1. By connecting the liquid supply device to the liquid supply hole on the heating plate, liquid can be supplied to the inner side of the sample on the heating plate, thereby fully simulating the human sweating scene to improve the authenticity of the test;

[0025] 2. By placing the liquid supply device inside the housing, mutual interference with the temperature sensing unit can be avoided, so that the temperature sensing unit can correspond to the liquid supply hole, thereby improving the test accuracy;

[0026] 3. The hot plate method is tested by the cooperation of the heating plate, liquid supply device, temperature sensing unit, air outlet unit and wind speed detection unit, and the shell is used to achieve high integration, making it easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall installation of the utility model;

[0028] Figure 2 This is a schematic diagram of the test space of the utility model;

[0029] Figure 3 This is a schematic diagram of the installation of the cover plate and the temperature sensing unit of the utility model;

[0030] Figure 4 for Figure 3 A partial enlarged view;

[0031] Figure 5 This is a schematic cross-sectional diagram of the installation of the heating plate of the utility model;

[0032] Figure 6 This is a schematic cross-sectional view of the water tank of the utility model;

[0033] Figure 7 This is a schematic diagram of the installation of the fan of the utility model.

[0034] Figure numerals: 1. Shell; 2. Cover; 3. Test space; 4. Articulated rod; 5. Temperature sensing unit; 6. Liquid supply hole; 7. Heating plate; 8. Test surface; 9. Pressing plate; 10. Base; 11. Scale; 12. Height block; 13. Heat insulation board; 14. Temperature sensor; 15. Liquid supply device; 16. Through hole; 17. Water tank; 18. Pump body; 19. Capillary tube; 20. Mounting screw; 21. Water inlet; 22. Box cover; 23. Through hole; 24. Liquid level sensor; 25. Air outlet unit; 26. Fan; 27. Air outlet; 28. Cover; 29. ​​Air cavity; 30. Diverter plate; 31. Wind speed sensor; 32. Air outlet gap; 33. Control screen. DETAILED DESCRIPTION

[0035] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments, wherein the same components are denoted by the same reference numerals.

[0036] like Figure 1-7 As shown, the textile hot plate drying rate tester includes a shell 1 and a cover 2, a test space 3 is formed on the shell 1, a hinge rod 4 is provided on one side of the cover 2 and is hinged to the top of the shell 1 through the hinge rod 4, and a temperature sensing unit 5 is connected to the side of the cover 2 close to the shell 1, that is, the temperature sensing unit 5 is maintained above the test surface 8 through the cover 2, and when the cover 2 covers the shell 1, the temperature sensing unit 5 corresponds to the liquid supply hole 6, and the heating plate 7 is fixedly arranged in the test space 3, and a test surface 8 for placing a sample is formed above the heating plate 7. When in use, the cover 2 is swung relative to the shell 1, thereby driving the temperature sensing unit 5 and the heating plate 7 to approach and separate.

[0037] Furthermore, a transparent observation window is provided on the cover plate 2, through which the operator can conveniently observe the contact status between the internal sample and the aqueous solution.

[0038] Furthermore, in order to fix the sample on the test surface 8, a pressing plate 9 is also included. The pressing plate 9 is used to press the sample to fix the sample on the test surface 8. Specifically, in this embodiment, the heating plate 7 is made of metal, and the pressing plate 9 is a magnetic part. The sample is fixed by magnetically adsorbing the heating plate 7 through the pressing plate 9.

[0039] In another embodiment, the pressing plate 9 is connected to the cover plate 2 . When the cover plate 2 covers the housing 1 , the pressing plate 9 presses the sample to press the sample onto the test surface 8 .

[0040] In another embodiment, a lifting assembly connected to the pressure plate 9 is provided on the shell 1. When in use, the pressure plate 9 and the test surface 8 are brought closer to / separated by the lifting of the lifting assembly. The lifting assembly is any linear movement method in the prior art.

[0041] Furthermore, since different samples have different thicknesses, in order to ensure that the distance between the temperature sensing unit 5 and the surfaces of different fabrics is consistent, in this embodiment, a base 10 is provided on the cover plate 2, and the temperature sensing unit 5 is telescopically connected to the base 10. The temperature sensing unit 5 telescopically moves relative to the base 10 to adjust the distance between the temperature sensing unit 5 and the heating plate 7.

[0042] Furthermore, a scale 11 is provided at the telescopic connection between the temperature sensing unit 5 and the base 10 , so that the telescopic distance of the temperature sensing unit 5 relative to the base 10 can be precisely controlled through the scale 11 .

[0043] During use, the telescopic position of the temperature sensing unit 5 and the base 10 can be adjusted according to the thickness of different samples, thereby ensuring that the distance between the temperature sensing unit 5 and the sample surface is consistent for easy use.

[0044] Furthermore, in order to make the distance adjustment between the temperature sensing unit 5 and the sample surface more accurate, the present embodiment also includes a height block 12, which is arranged between the temperature sensing unit 5 and the sample. The two sides of the height block 12 respectively contact the temperature sensing unit 5 and the sample. The thickness of the height block 12 is 0.9 cm-1.1 cm. In the present embodiment, the thickness of the height block 12 is 1 cm. In another embodiment, the thickness of the height block 12 is 0.9 cm. In another embodiment, the thickness of the height block 12 is 1.1 cm.

[0045] When in use, the height block 12 is placed on the sample surface, and the temperature sensing unit 5 contacts the height block 12 to achieve height control. After the adjustment is completed, the height block 12 is removed to perform subsequent experimental operations.

[0046] Specifically, in this embodiment, the temperature sensing unit 5 is an infrared thermocouple probe.

[0047] In this embodiment, heating is achieved by providing a heating film at the bottom of the heating plate 7. In other embodiments, any electric heating method in the prior art may be used, including heating wires, etc. In order to prevent the heating of the heating plate 7 from affecting other components, a heat insulation plate 13 is provided between the heating plate 7 and the shell 1. The heat insulation plate 13 is specifically made of wood. At the same time, in order to facilitate replacement and maintenance, the heat insulation plate 13 is formed by splicing at least two plates.

[0048] In other embodiments, the heat insulation board 13 may also be made of any other heat insulation material in the prior art, including ceramics, glass fiber, etc.

[0049] Furthermore, in order to achieve temperature control of the heating plate 7 and maintain a constant temperature of the heating plate 7 , in this embodiment, a temperature sensor 14 is provided on the heat insulation plate 13 , and the temperature sensor 14 is used to detect the temperature of the heating plate 7 .

[0050] Furthermore, the liquid supply device 15 is arranged in the shell 1, and the liquid supply hole 6 is a hole set in the heating plate 7 corresponding to the test surface 8, and the insulation plate 13 is provided with a through hole 16 corresponding to the liquid supply hole 6. The output end of the liquid supply device 15 passes through the through hole 16 and is connected to the liquid supply hole 6.

[0051] The liquid supply device 15 supplies liquid to the heating plate 7, which ensures that the aqueous solution is located inside the sample and in contact with the sample, thereby achieving a high degree of simulation of the human sweating scene and improving the reliability and authenticity of the test results.

[0052] Specifically, the liquid supply device 15 includes a water tank 17 and a pump body 18 arranged in the housing 1. The input end of the pump body 18 is connected to the water tank 17, and the output end of the pump body 18 is provided with a capillary 19 and connected to the liquid supply hole 6 through the capillary 19.

[0053] Specifically, the pump body 18 is a peristaltic pump, thereby ensuring the accuracy of liquid supply. At the same time, the provision of the capillary 19 can further ensure high-precision liquid supply, thereby improving the reliability of the test results.

[0054] In this embodiment, a mounting screw 20 is connected to the heating plate 7. The mounting screw 20 passes through the through hole 16 and corresponds to the liquid supply hole 6. The mounting screw 20 is threadedly connected to the through hole 16. The mounting screw 20 is provided with a through channel along the axis. The capillary 19 is installed in the channel, so that when the mounting screw 20 is connected to the through hole 16, the capillary 19 corresponds to and is connected to the liquid supply hole 6.

[0055] Furthermore, a water inlet 21 is formed at the upper end of the water tank 17, and a box cover 22 is provided at the water inlet 21. The upper end of the water tank 17 is connected and fixed to the shell 1, and the shell 1 is provided with a through hole 23 corresponding to the water inlet 21. More specifically, the through hole 23 is the plane where the shell 1 corresponds to the test space 3. One end of the box cover 22 passes through the through hole 23 and covers the water inlet 21.

[0056] The connection between the water tank 17 and the housing 1 and the arrangement of the tank cover 22 can facilitate the replenishment of the aqueous solution in the water tank 17 . At the same time, the connection between the water tank 17 and the housing 1 enables the small integration of the water tank 17 .

[0057] Furthermore, a liquid level sensor 24 is provided in the water tank 17 , and the water level in the water tank 17 can be monitored by the liquid level sensor 24 , thereby facilitating the operator to replenish water in a timely manner.

[0058] Furthermore, an air outlet unit 25 is included. The air outlet unit 25 includes a fan 26 and an air outlet 27 arranged in the test space 3. The fan 26 is used to supply air to the air outlet 27. The air outlet 27 is arranged toward the test surface 8.

[0059] When in use, the fan 26 supplies air to the air outlet 27 , and the airflow is guided through the air outlet 27 to pass through the test surface 8 , thereby detecting the drying rate of the sample on the test surface 8 .

[0060] Specifically, the shell 1 is provided with a cover 28 corresponding to the test space 3, and an air cavity 29 is formed in the cover 28. The cover 28 is provided with a mounting port corresponding to the heating plate 7 and a diverter plate 30 is provided corresponding to the mounting port. The air outlet 27 is a plurality of holes arranged on the air flow plate 30, and the fan 26 is arranged in the air cavity 29 and is arranged toward the mounting port.

[0061] By arranging the fan 26 in the air cavity 29, the integration can be further improved. At the same time, the multiple holes on the diverter plate 30 can achieve a uniform air outlet effect, thereby improving the simulation authenticity of the airflow under natural conditions.

[0062] Furthermore, in order to monitor the wind speed to meet the experimental requirements, a wind speed sensor 31 is also included. The wind speed sensor 31 is arranged in the test space 3 and above the corresponding test surface 8. The air flow from the air outlet 27 flows through the wind speed sensor 31. The wind speed sensor 31 is used to detect the wind speed at its current position.

[0063] Specifically, the wind speed sensor 31 is a thermal anemometer. Since the wind speed sensor 31 is located above the test surface 8, when the airflow passes through the wind speed sensor 31, the wind speed above the test surface 8 can be detected by the wind speed sensor 31, thereby meeting the experimental needs.

[0064] Furthermore, in order to reduce airflow turbulence in the test space 3 , when the cover plate 2 covers the shell 1 , an air outlet gap 32 is formed between one side of the cover plate 2 and the shell 1 , and the heating plate 7 is located between the air outlet gap 32 and the air outlet 27 .

[0065] The airflow blown out of the air outlet 27 can be blown out through the air outlet gap 32 after passing through the heating plate 7, so as to avoid being retained in the test space 3 and causing adverse effects on subsequent airflow.

[0066] In another embodiment, the cover plate 2 is provided with air holes for air discharge.

[0067] Furthermore, a control screen 33 is provided on the shell 1. In another embodiment, the control screen 33 is arranged on the cover plate 2. The speed of the fan 26, the temperature of the heating plate 7 and the power of the peristaltic pump are adjusted through the control screen 33. At the same time, the control screen 33 can facilitate the operator to observe the specific data of the temperature sensing unit 5, the wind speed detection unit 31 and the temperature sensor 14 to ensure that the experiment is accurate and effective.

[0068] The specific method of using the textile hot plate drying rate tester described in this embodiment is as follows:

[0069] S1. Turn on the heating plate 7 and the fan 26, while keeping the heating plate 7 at 37 degrees.

[0070] S2. The wind speed sensor 31 detects that the air flow speed above the heating plate 7 is 1.5 m / s. At this time, the temperature above the heating plate 7 is measured by the temperature sensing unit 5.

[0071] S3. Place the sample on the test surface 8 for preheating, so that the sample temperature is consistent with the temperature of the heating plate 7 and the edge of the sample does not exceed the edge of the heating plate 7, and further fix the sample by the pressing plate 9.

[0072] S4. Place the height gauge block 12 above the sample, and use the temperature sensing unit 5 to contact the height gauge block 12 to ensure that the height of the temperature sensing unit 5 and the sample height are appropriate. After the adjustment is completed, remove the height gauge block 12.

[0073] S5. The liquid supply device 15 delivers a preset aqueous solution to the inner side of the sample, and the temperature sensing unit 5 records the temperature change per second until the temperature returns to the initial value, which is considered the end of a single experiment.

[0074] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. Textile hot plate drying rate tester, characterized in that, include: A housing (1), wherein a test space (3) is formed on the housing (1); A heating plate (7), the heating plate (7) being fixedly arranged in the test space (3), and a test surface (8) for placing a sample is formed above the heating plate (7); a pressing plate (9), the pressing plate (9) being used to press the sample to fix the sample on the test surface (8); A liquid supply device (15) is provided in the housing (1), the heating plate (7) is provided with a liquid supply hole (6) corresponding to the test surface (8), and the output end of the liquid supply device (15) is in communication with the liquid supply hole (6); A temperature sensing unit (5), the temperature sensing unit (5) being arranged above the corresponding test surface (8) and corresponding to the liquid supply hole (6); An air outlet unit (25), the air outlet unit (25) comprising a fan (26) and an air outlet (27) arranged in the test space (3), the fan (26) being used to supply air to the air outlet (27), and the air outlet (27) being arranged toward the test surface (8); A wind speed sensor (31) is provided in the test space (3), and the wind speed sensor (31) is provided above the corresponding test surface (8), the airflow from the air outlet (27) flows through the wind speed sensor (31), and the wind speed sensor (31) is used to detect the wind speed at its current position.

2. The textile hot plate drying rate tester according to claim 1, characterized in that: A cover plate (2) is hingedly connected to the shell (1), and the temperature sensing unit (5) is connected to a side of the cover plate (2) close to the shell (1).

3. The textile hot plate drying rate tester according to claim 2, characterized in that: The cover plate (2) is provided with a base (10), the temperature sensing unit (5) is telescopically connected to the base (10), and the temperature sensing unit (5) is telescopically movable relative to the base (10) to adjust the distance between the temperature sensing unit (5) and the heating plate (7).

4. The textile hot plate drying rate tester according to claim 2, characterized in that: The device further comprises a height gauge block (12), which is arranged between the temperature sensing unit (5) and the sample. Two sides of the height gauge block (12) respectively contact the temperature sensing unit (5) and the sample. The thickness of the height gauge block (12) is 0.9 cm-1.1 cm.

5. The textile hot plate drying rate tester according to claim 2, characterized in that: When the cover plate (2) covers the shell (1), an air outlet gap (32) is formed between one side of the cover plate (2) and the shell (1), and the heating plate (7) is located between the air outlet gap (32) and the air outlet (27).

6. The textile hot plate drying rate tester according to claim 1, characterized in that: The liquid supply device (15) comprises a water tank (17) and a pump body (18) arranged in the housing (1); the input end of the pump body (18) is connected to the water tank (17); the output end of the pump body (18) is provided with a capillary tube (19) and is connected to the liquid supply hole (6) through the capillary tube (19).

7. The textile hot plate drying rate tester according to claim 6, characterized in that: A liquid level sensor (24) is provided in the water tank (17).

8. The textile hot plate drying rate tester according to claim 6, characterized in that: The upper end of the water tank (17) is provided with a water inlet (21), and the water inlet (21) is covered with a box cover (22). The upper end of the water tank (17) is connected and fixed to the shell (1), and the shell (1) is provided with a through hole (23) corresponding to the water inlet (21). One end of the box cover (22) passes through the through hole (23) and covers the water inlet (21).

9. The textile hot plate drying rate tester according to claim 1, characterized in that: The shell (1) is provided with a cover (28) corresponding to the test space (3), an air cavity (29) is formed in the cover (28), the cover (28) is provided with a mounting opening corresponding to the heating plate (7) and a diverter plate is provided corresponding to the mounting opening, the air outlet (27) is a plurality of holes arranged on the air flow plate (30), and the fan (26) is arranged in the air cavity (29) and is arranged toward the mounting opening.

10. The textile hot plate drying rate tester according to claim 1, characterized in that: A heat insulating plate (13) is provided between the housing (1) and the heating plate (7), and a through hole (16) is provided on the heat insulating plate (13) corresponding to the liquid supply hole (6).

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