Tester for cool feeling performance of fabric

Abstract

The invention belongs to the technical field of fabric cool sense performance testing, and particularly relates to a fabric cool sense performance tester, which comprises a test device and an intelligent thermal compensation system, the test device comprises an experiment table, a temperature sensor, three temperature control seats, three test probes and a lifting mechanism, the lifting mechanism comprises an air cylinder, a connecting shaft and a connecting rod; the temperature sensor is fixedly installed above the experiment table and used for monitoring the temperature of a test environment, the three temperature control bases are evenly and fixedly installed above the experiment table, the air cylinder is fixedly installed above the experiment table, the connecting shaft is fixedly connected with the output end of the air cylinder, the connecting rod is fixedly installed at the upper end of the connecting shaft, and the temperature sensor is fixedly installed above the experiment table and used for monitoring the temperature of the test environment. The three test probes are uniformly and fixedly mounted on the connecting rod, and the device solves the problem that when the cool feeling performance of the current fabric is tested, the precision of the simulated human body temperature is poor due to heat loss of the test probes, so that the test precision of the cool feeling performance is influenced.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric cooling performance testing, and in particular relates to a fabric cooling performance testing instrument. Background Art

[0002] With the increasing demand for high-performance textiles, fabric cooling performance has become one of the important indicators for measuring textile quality. At present, there are some fabric cooling performance test equipment on the market, but these equipment still need to be improved in terms of test accuracy, ease of operation, and real-time data display. Therefore, it is of great significance to develop a fabric cooling performance tester with high accuracy, easy operation, and real-time data display.

[0003] At present, the cooling performance test of fabrics is carried out by contacting the test probe with the fabric, and the test probe is used to simulate the human body temperature. When the test probe contacts the fabric, heat loss will occur, which will lead to errors in the simulated human body temperature. This phenomenon has become a problem that needs to be solved urgently by people in this field. Summary of the invention

[0004] The object of the present invention is to provide a fabric cooling performance tester to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a fabric cool feeling performance tester, comprising a test device and an intelligent thermal compensation system, the test device comprising a test bench, a temperature sensor, three temperature control seats, three test probes and a lifting mechanism, the lifting mechanism comprising a cylinder, a connecting shaft and a connecting rod; the temperature sensor is fixedly installed above the test bench and is used to monitor the temperature of the test environment, the three temperature control seats are evenly fixedly installed above the test bench, the cylinder is fixedly installed above the test bench, the connecting shaft is fixedly connected to the output end of the cylinder, the connecting rod is fixedly installed at the upper end of the connecting shaft, the three test probes are evenly fixedly installed on the connecting rod, and are respectively located above the three temperature control seats, a heater is arranged inside the temperature control seat, and the heater is used to control the temperature of the test environment, a humidity controller and a temperature controller are arranged inside the test probe, the humidity controller is used to control the humidity of the test probe, thereby simulating the humidity of human skin, the temperature controller is used to control the temperature of the human body, a display screen and a plurality of control buttons are installed on one side of the test bench, and the intelligent thermal compensation system is electrically connected to the temperature controller.

[0006] The present invention further illustrates that the intelligent thermal compensation system includes a speed identification module, a thickness identification module, a thermal compensation measurement module and a temperature application module; the speed identification module, the thickness identification module, the thermal compensation measurement module and the temperature application module are electrically connected to each other, the speed identification module is electrically connected to the cylinder, a thickness sensor is provided inside the temperature control seat, and the thickness sensor is electrically connected to the thickness identification module, the speed identification module is used to identify the running speed of the cylinder, thereby determining the descending speed of the test probe, the thickness identification module is used to sense the thickness of the test fabric through the thickness sensor, the thermal compensation measurement module is used to calculate the compensation temperature according to various parameters, and the temperature application module is used to apply the compensation temperature to the temperature of the temperature controller.

[0007] The present invention further illustrates that the thermal compensation measurement module includes a first thermal compensation unit, a second thermal compensation unit, a third thermal compensation unit and a fourth thermal compensation unit, and the first thermal compensation unit, the second thermal compensation unit, the third thermal compensation unit and the fourth thermal compensation unit are electrically connected to each other, the first thermal compensation unit is used to calculate the first thermal compensation data, the second thermal compensation unit is used to calculate the second thermal compensation data, the third thermal compensation unit is used to calculate the third thermal compensation data, and the fourth thermal compensation unit is used to calculate the fourth thermal compensation data.

[0008] The present invention further illustrates that the operation steps of the intelligent thermal compensation system include: step S1, the operation of the intelligent thermal compensation system; step S2, by identifying the descending speed of the test probe, the heat loss of the test probe is calculated, and then the temperature of the temperature controller is thermally compensated once according to the heat loss; step S3, by identifying the thickness of the test fabric, the heat loss data of the test probe is optimized, and the temperature of the temperature controller is thermally compensated twice, and when the descending speed of the test probe is greater than the system set value, step S4 is entered, otherwise step S6 is entered; step S4, the resistance encountered by the test probe when it descends, the wind-breaking strength changes, and the heat loss data is further optimized, so that the temperature of the temperature controller is thermally compensated three times; step S5, at the same time, the test probe is in rapid contact with the test fabric, and the heat loss data is optimized again during the process, so that the temperature of the temperature controller is thermally compensated four times; step S6, after the test is completed, the intelligent thermal compensation system stops running.

[0009] The present invention further illustrates that in step S2, the first thermal compensation data is: , is the first heat loss when the test probe descends, is the maximum heat loss of the test probe, To test the descending speed of the probe, is the fastest descending speed of the test probe; , is the final temperature controlled by the temperature controller, is the initial temperature controlled by the temperature controller.

[0010] The present invention further illustrates that in step S2 and step S3, the second thermal compensation data is: , The heat loss data for the first optimization when the test probe is lowered, To test the thickness of the fabric, is the maximum thickness of the tested fabric; i.e. .

[0011] The present invention further illustrates that in step S3 and step S4, the third thermal compensation data is: hour, The test probe descending speed set by the system: At this time, the test probe descends fast. , , To test the resistance of the probe when it descends, It is the highest resistance encountered by the test probe when it descends. is the heat loss data after secondary optimization; when When: At this time, the test probe descends slowly, then .

[0012] The present invention further illustrates that in the steps S3, S4 and S5, the fourth thermal compensation data is: hour: , is the heat loss data after three optimizations; hour: .

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the test equipment adopted by the present invention, the test probe contacts the fabric to test the cold and hot sensation stimulation transmitted by the human body when it contacts the fabric, adopts high-precision temperature control to achieve a temperature control accuracy of ±.°C or higher, simulates the temperature environment of the human skin surface, and ensures the accuracy of the test results, is equipped with a humidity controller to simulate the humidity environment of the human skin surface to more realistically reflect the feeling of the human body when wearing it, realizes one-button operation through automated testing, automatically completes the test process, improves the test efficiency, and displays the test data in real time through the display screen, so that the user can understand the test progress and results at any time, and the system of the test equipment can be upgraded and expanded to adapt to the evolving test needs; And the heat loss of the test probe is measured multiple times. When the test probe descends, the faster the descent speed, the greater the heat loss, that is, the higher the temperature controlled by the temperature controller increases, and vice versa. On the one hand, it can avoid the heat loss of the test probe causing inaccurate controlled temperature to affect the accuracy of the test data, and perform thermal compensation on the test probe temperature during the test, thereby improving the accuracy of the test data. On the other hand, it can avoid excessive temperature increase causing inaccurate human body temperature simulation affecting the test quality. For thicker fabrics, the thermal compensation data is greatly reduced to avoid excessive compensation temperature causing inaccurate simulated human body temperature. For thinner fabrics, the thermal compensation data is reduced by a small amount, which can maintain the accuracy of the test probe temperature and improve the accuracy of the test data. When the test probe descends rapidly, its bottom surface encounters resistance. The faster the descent speed, the greater the resistance, resulting in greater wind-breaking strength and relatively greater heat loss. The heat loss data is further optimized, and the accuracy of heat loss calculation is further improved to avoid low heat loss data leading to low compensation temperature, and to prevent the relatively high simulated human body temperature from affecting the test accuracy. The accuracy of the cooling performance test is greatly improved, and the test probe can quickly contact the test fabric. This process is short, so that the heat loss is reduced to a certain extent, but the amount of reduction is small. The heat loss data is optimized again to avoid large heat loss compensation data, and the temperature controlled by the temperature controller is provided with the greatest accuracy guarantee. The simulated human body temperature is relatively stable and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the module connection relationship of the intelligent thermal compensation system of the present invention; In the figure: 1. experimental table; 2. temperature sensor; 3. temperature control seat; 4. test probe; 5. cylinder; 51. connecting shaft; 52. connecting rod; 6. display screen; 7. control button. DETAILED DESCRIPTION

[0015] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 2The present invention provides a technical solution: a fabric cooling performance tester, including a test device and an intelligent thermal compensation system, the test device includes a test bench 1, a temperature sensor 2, three temperature control seats 3, three test probes 4 and a lifting mechanism, the lifting mechanism includes a cylinder 5, a connecting shaft 51 and a connecting rod 52; The temperature sensor 2 is fixedly installed above the experimental table 1 and is used to monitor the temperature of the test environment. Three temperature control seats 3 are evenly fixedly installed above the experimental table 1. The cylinder 5 is fixedly installed above the experimental table 1. The connecting shaft 51 is fixedly connected to the output end of the cylinder 5. The connecting rod 52 is fixedly installed on the upper end of the connecting shaft 51. Three test probes 4 are evenly fixedly installed on the connecting rod 52 and are respectively located above the three temperature control seats 3. A heater is provided inside the temperature control seat 3, and the heater is used to control the temperature of the test environment. A humidity controller and a temperature controller are provided inside the test probe 4. The humidity controller is used to control the humidity of the test probe 4, thereby simulating the humidity of human skin. The temperature controller is used to control the temperature of the human body. A display screen 6 and a number of control buttons 7 are installed on one side of the experimental table 1. The intelligent thermal compensation system is electrically connected to the temperature controller; The tester places the fabric on the temperature control seat 3, controls the temperature of the test environment through the heater inside the seat, adjusts the temperature of the heater through the control button 7, thereby modifying the test environment temperature, and at the same time adjusts the humidity of the humidity controller and the temperature of the temperature controller through the control button 7, thereby modifying the human skin humidity and human body temperature, truly simulating the test environment, and improving the accuracy of the test results. After that, the cylinder 5 runs, drives the connecting rod 52 to move up and down through the connecting shaft 51, thereby driving the test probe 4 to move up and down. When the test probe 4 moves downward, it contacts the fabric. The test probe 4 contacts the fabric to test the transmission of cold and hot sensation stimulation when the human body contacts the fabric. High-precision temperature control is adopted to achieve a temperature control accuracy of ±0.2°C or higher, simulate the temperature environment of the human skin surface, and ensure the accuracy of the test results. A humidity controller is equipped to simulate the humidity environment of the human skin surface to more truly reflect the feeling of the human body when wearing it. Through automated testing, one-button operation is achieved, the test process is automatically completed, and the test efficiency is improved. The test data is displayed in real time through the display screen 6, which is convenient for users to understand the test progress and results at any time. The system of the test equipment can be upgraded and expanded to adapt to the evolving test needs. At the same time, the temperature of the temperature controller is thermally compensated through the intelligent thermal compensation system, thereby further improving the accuracy of the test data.

[0017] The intelligent thermal compensation system includes a speed recognition module, a thickness recognition module, a thermal compensation measurement module, and a temperature enhancement module; The speed identification module, the thickness identification module, the thermal compensation measurement module and the temperature application module are electrically connected to each other. The speed identification module is electrically connected to the cylinder 5. A thickness sensor is provided inside the temperature control seat 3, and the thickness sensor is electrically connected to the thickness identification module. The speed identification module is used to identify the running speed of the cylinder 5, thereby determining the descending speed of the test probe 4. The thickness identification module is used to sense the thickness of the test fabric through the thickness sensor. The thermal compensation measurement module is used to calculate the compensation temperature according to various parameters. The temperature application module is used to apply the compensation temperature to the temperature of the temperature controller.

[0018] The thermal compensation measurement module includes a first thermal compensation unit, a second thermal compensation unit, a third thermal compensation unit and a fourth thermal compensation unit. The first thermal compensation unit, the second thermal compensation unit, the third thermal compensation unit and the fourth thermal compensation unit are electrically connected to each other. The first thermal compensation unit is used to calculate the first thermal compensation data, the second thermal compensation unit is used to calculate the second thermal compensation data, the third thermal compensation unit is used to calculate the third thermal compensation data, and the fourth thermal compensation unit is used to calculate the fourth thermal compensation data.

[0019] The operation steps of the intelligent thermal compensation system include: Step S1, the intelligent thermal compensation system runs; Step S2, by identifying the descending speed of the test probe 4, the heat loss of the test probe 4 is measured, and then the temperature of the temperature controller is thermally compensated according to the heat loss; Step S3, by identifying the thickness of the test fabric, optimizing the heat loss data of the test probe 4, and performing secondary thermal compensation on the temperature of the temperature controller, when the descending speed of the test probe 4 is greater than the system setting value, entering step S4, otherwise entering step S6; Step S4, the resistance encountered by the test probe 4 when it descends, the wind-breaking strength changes, and the heat loss data is further optimized, so as to perform three-time thermal compensation on the temperature of the temperature controller; Step S5, the test probe 4 is brought into rapid contact with the test fabric at the same time, and the heat loss data is optimized again during the process, thereby performing four thermal compensations on the temperature of the temperature controller; Step S6: After the test is completed, the intelligent thermal compensation system stops running.

[0020] In step S2, the first thermal compensation data is: , is the first heat loss when the test probe 4 descends, is the maximum heat loss of the test probe 4, To test the descending speed of the probe 4, is the fastest descending speed of the test probe 4; Right now , is the final temperature controlled by the temperature controller, is the initial temperature controlled by the temperature controller; When the test probe 4 descends, the faster the descent speed, the greater the heat loss, that is, the higher the temperature controlled by the temperature controller increases, and vice versa. On the one hand, it can avoid the test probe 4 from generating heat loss, resulting in inaccurate temperature control and affecting the accuracy of the test data. The temperature of the test probe 4 during the test is thermally compensated, thereby improving the accuracy of the test data. On the other hand, it can avoid excessive temperature increase, resulting in inaccurate human body temperature simulation and affecting the test quality.

[0021] In step S2 and step S3, the second thermal compensation data is: , The heat loss data for the first optimization when the test probe 4 is lowered, To test the thickness of the fabric, The maximum thickness of the fabric to be tested; Right now ; The change in the thickness of the test fabric causes the distance that the test probe 4 descends to change. The thicker the fabric, the shorter the distance that the test probe 4 descends, thereby relatively reducing the thermal compensation data. The thicker the thickness, the more the thermal compensation data decreases, and vice versa. On the one hand, for thicker fabrics, the thermal compensation data is greatly reduced to avoid excessive compensation of temperature that leads to inaccurate simulated human body temperature. On the other hand, for thinner fabrics, the thermal compensation data is reduced by a small amount, which can maintain the accuracy of the temperature of the test probe 4 and improve the accuracy of the test data.

[0022] In step S3 and step S4, the third thermal compensation data is: when hour, The descending speed of the test probe 4 set by the system: At this time, the descending speed of the test probe 4 is fast. , , is the resistance encountered by the test probe 4 when it descends, is the highest resistance encountered by the test probe 4 when it descends, is the heat loss data after secondary optimization; when When: At this time, the descending speed of the test probe 4 is slow, then ; When the test probe 4 descends rapidly, its bottom surface encounters resistance. The faster the descent speed, the greater the resistance, so that the wind-breaking strength is large and the heat loss is relatively increased, thereby further optimizing the heat loss data, further improving the accuracy of heat loss calculation, avoiding low compensation temperature due to low heat loss data, and preventing the relatively high simulated human body temperature from affecting the test accuracy, thereby greatly improving the accuracy of cooling performance testing.

[0023] In step S3, step S4 and step S5, the fourth thermal compensation data is: when hour: , This is the heat loss data after three optimizations; when hour: ; When the test probe 4 drops rapidly, it can quickly contact with the test fabric. This process is short, so that the heat loss is reduced to a certain extent, but the amount of reduction is small. The heat loss data is optimized again to avoid large heat loss compensation data, and the temperature controlled by the temperature controller is provided with the greatest degree of accuracy. The simulated human body temperature is relatively stable and accurate.

[0024] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0025] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fabric cooling performance tester, comprising a test device and an intelligent thermal compensation system, characterized in that: The testing device comprises a test bench (1), a temperature sensor (2), three temperature control seats (3), three test probes (4) and a lifting mechanism, wherein the lifting mechanism comprises a cylinder (5), a connecting shaft (51) and a connecting rod (52); The temperature sensor (2) is fixedly mounted above the experimental table (1) and is used to monitor the temperature of the test environment. The three temperature control seats (3) are evenly fixedly mounted above the experimental table (1). The cylinder (5) is fixedly mounted above the experimental table (1). The connecting shaft (51) is fixedly connected to the output end of the cylinder (5). The connecting rod (52) is fixedly mounted on the upper end of the connecting shaft (51). The three test probes (4) are evenly fixedly mounted on the connecting rod (52) and are respectively located above the three temperature control seats (3). The temperature control seat (3) is internally provided with A heater is provided, and the heater is used to control the temperature of the test environment. A humidity controller and a temperature controller are arranged inside the test probe (4). The humidity controller is used to control the humidity of the test probe (4) to simulate the humidity of human skin. The temperature controller is used to control the temperature of the human body. A display screen (6) and a plurality of control buttons (7) are installed on one side of the test bench (1). The intelligent thermal compensation system is electrically connected to the temperature controller. The intelligent thermal compensation system includes a speed recognition module, a thickness recognition module, a thermal compensation measurement module and a temperature support module.

2. A fabric cool feeling performance tester according to claim 1, characterized in that: The speed recognition module, the thickness recognition module, the thermal compensation measurement module and the temperature application module are electrically connected to each other. The speed recognition module is electrically connected to the cylinder (5). A thickness sensor is provided inside the temperature control seat (3), and the thickness sensor is electrically connected to the thickness recognition module. The speed recognition module is used to identify the running speed of the cylinder (5), thereby determining the descending speed of the test probe (4). The thickness recognition module is used to sense the thickness of the test fabric through the thickness sensor. The thermal compensation measurement module is used to calculate the compensation temperature according to various parameters. The temperature application module is used to apply the compensation temperature to the temperature of the temperature controller.

3. A fabric cool feeling performance tester according to claim 2, characterized in that: The thermal compensation calculation module includes a first thermal compensation unit, a second thermal compensation unit, a third thermal compensation unit and a fourth thermal compensation unit. The first thermal compensation unit, the second thermal compensation unit, the third thermal compensation unit and the fourth thermal compensation unit are electrically connected to each other. The first thermal compensation unit is used to calculate first thermal compensation data, the second thermal compensation unit is used to calculate second thermal compensation data, the third thermal compensation unit is used to calculate third thermal compensation data, and the fourth thermal compensation unit is used to calculate fourth thermal compensation data.

4. A fabric cool feeling performance tester according to claim 3, characterized in that: The operation steps of the intelligent thermal compensation system include: Step S1, the intelligent thermal compensation system runs; Step S2, by identifying the descending speed of the test probe (4), measuring the heat loss of the test probe (4), and then performing a thermal compensation on the temperature of the temperature controller according to the heat loss; Step S3, by identifying the thickness of the test fabric, optimizing the heat loss data of the test probe (4), performing secondary thermal compensation on the temperature of the temperature controller, and when the descending speed of the test probe (4) is greater than the system setting value, entering step S4, otherwise entering step S6; Step S4, testing the resistance of the probe (4) when it descends, the change of the wind-breaking strength, and further optimizing the heat loss data, thereby performing three-time thermal compensation on the temperature of the temperature controller; Step S5, simultaneously the test probe (4) is brought into rapid contact with the test fabric, during which the heat loss data is optimized again, thereby performing four thermal compensations on the temperature of the temperature controller; Step S6: After the test is completed, the intelligent thermal compensation system stops running.

5. A fabric cool feeling performance tester according to claim 4, characterized in that: In step S2, the first thermal compensation data is: , is the first heat loss when the test probe (4) descends, is the maximum heat loss of the test probe (4), is the descending speed of the test probe (4), is the fastest descending speed of the test probe (4); Right now , is the final temperature controlled by the temperature controller, is the initial temperature controlled by the temperature controller.

6. A fabric cool feeling performance tester according to claim 5, characterized in that: In step S2 and step S3, the second thermal compensation data is: , The heat loss data for the first optimization when the test probe (4) is lowered, To test the thickness of the fabric, The maximum thickness of the fabric to be tested; Right now .

7. A fabric cool feeling performance tester according to claim 6, characterized in that: In step S3 and step S4, the third thermal compensation data is: hour, The descending speed of the test probe (4) set by the system: At this time, the descending speed of the test probe (4) is fast. , , is the resistance encountered by the test probe (4) when it descends. is the maximum resistance encountered by the test probe (4) when it descends, is the heat loss data after secondary optimization; when When: At this time, the descending speed of the test probe (4) is slow, then .

8. A fabric cool feeling performance tester according to claim 7, characterized in that: In the steps S3, S4 and S5, the fourth thermal compensation data is: when hour: , This is the heat loss data after three optimizations; when hour: .

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