Environment simulation cabin and multi-field coupling artificial board accelerated deformation test method thereof

Abstract

The invention discloses an environment simulation cabin and a multi-field coupling artificial board accelerated deformation test method thereof. The environment simulation cabin is specially designed for artificial board deformation testing and comprises a rack, a mechanical loading module, an environment detection module and an electric control touch cabinet, the plates are hung and installed on the rack in a side-hung cabinet door connecting mode; the mechanical loading module is used for controlling dynamic movement of the plate and recording deformation data of the plate through measuring instruments such as a laser and various measuring rulers; the environment detection module comprises a temperature and humidity sensor; the electric control touch cabinet is in electric signal connection with the mechanical loading module and the environment detection module, and corresponding data can be monitored and collected in real time. According to the multi-field coupling artificial board accelerated deformation test method, the mechanical motion state in actual use is dynamically loaded and simulated through static and accelerated temperature and humidity circulation of the environment simulation cabin, so that the problems of long anti-deformation period and difficulty in rapid detection of the artificial board can be effectively solved; the deformation behavior of the plate under the humidity-mechanical stress coupling effect is evaluated by the system.

Description

TECHNICAL FIELD

[0001] The present application relates to an environment simulation cabin and a multi-field coupling artificial board accelerated deformation test method thereof. BACKGROUND

[0002] At present, the customized home industry is booming, and as the core raw material, artificial board is prone to shrink and swell due to changes in temperature and humidity, resulting in changes in size, affecting the quality of home products and user experience. The deformation defect of the board is a prominent problem that restricts the quality of home products. If the deformation defect of the board cannot be effectively monitored and detected during the production process of the enterprise, it will affect the use performance of the product and reduce the use experience of the end product customer.

[0003] At present, the board anti-deformation detection equipment has many technical bottlenecks, which is difficult to meet the needs of the rapid development of the industry. The traditional deformation detection method usually adopts simple suspension measurement to judge whether the board is deformed, and this method is based on the deformation detection of the natural state of the board. The board deformation needs more than 3 months to appear. The long detection cycle and large error seriously affect the production efficiency and cannot adapt to the rhythm of rapid production and delivery of the customized home industry. Although the research on the anti-deformation detection technology of the board has made great progress, most of the equipment only supports static loading and cannot simulate the dynamic load that the board may bear in actual use. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provides an environment simulation cabin and a multi-field coupling artificial board accelerated deformation test method thereof. The use of temperature and humidity cycle and mechanical load synchronous loading technology realizes the accelerated deformation of the board, effectively shortens the detection cycle, and solves the problems of long deformation test cycle and difficult rapid detection of the artificial board in the background technology.

[0005] The technical solution adopted by the present application to solve its technical problems is to provide an environment simulation cabin, which comprises a rack, a mechanical loading module, an environment detection module and a control module.

[0006] The rack comprises a plurality of columns; a hinge is arranged on the column, and the hinge suspends and installs the board on the rack in a connection mode of a flat opening cabinet door; the mechanical loading module comprises a motor, a rotating shaft, a sliding rail, a mechanical arm and a measuring instrument; the motor is used to control the rotation of the rotating shaft, the rotating shaft is arranged beside the column, the sliding rail is arranged on the rotating shaft and extends along the width direction of the board, and the mechanical arm is arranged on the sliding rail and contacts the board; the measuring instrument comprises a laser; the environment detection module comprises a temperature and humidity sensor; and the control module is electrically connected with the mechanical loading module and the environment detection module.

[0007] In a preferred embodiment of the present application, a door ring is installed on the plate by screws, and the mechanical arm is connected with the door ring.

[0008] In a preferred embodiment of the present application, the front end of the mechanical arm is provided with a gripping claw, which can realize pushing and pulling actions.

[0009] In a preferred embodiment of the present application, the rack comprises a base plate and a cross beam, the stand column is installed on the base plate, and the cross beam is connected to the top of the stand column.

[0010] In a preferred embodiment of the present application, the measuring instrument comprises a laser emitter and a laser receiver arranged at opposite positions of the cross beam and the base plate, and further comprises a measuring scale.

[0011] In a preferred embodiment of the present application, universal wheels are installed under the base plate.

[0012] In a preferred embodiment of the present application, the control module comprises an electric control touch cabinet and a data processor, and the electric control touch cabinet is provided with a PLC touch screen.

[0013] Another technical solution adopted by the present application to solve its technical problems is to provide a multi-field coupling artificial board accelerated deformation test method, which uses the above-mentioned environment simulation cabin for testing, comprising the following steps:

[0014] (I) Pretreatment:

[0015] Adjust the environment simulation cabin to a temperature of 23±2℃ and a relative humidity of 50±5%, and place the plate in the environment to reach a temperature and humidity equilibrium state;

[0016] (II) Static test

[0017] At least two plates are installed in a simulated flat cabinet door mode, and the opposite two plates are in a closed state; the temperature is controlled to cycle between 20-40℃, wherein the temperature increasing rate is 2℃ / min and the temperature decreasing rate is 3℃ / min; the relative humidity is controlled to cycle between 70%-90%, and the humidity change rate is 5% per minute; at least 6 measurement points are set for each plate, and the data of the measurement points at each parameter change node are recorded;

[0018] (III) Dynamic test

[0019] The temperature and humidity cycle in step (II) is maintained, the mechanical arm of the mechanical loading module is set to apply a mechanical load of 10-80N to the surface of the plate, the loading speed is controlled at 1N / s, the motor and rotating shaft are used to dynamically open and close the plate, the opening and closing angle range is controlled to be 0~135°; the data of the measurement points at each parameter change node are recorded.

[0020] In a preferred embodiment of the present application, at least three positionally opposite measuring points are arranged at intervals on the near-hinge side and the far-hinge side of the plate.

[0021] In a preferred embodiment of the present application, the recorded parameters or data include temperature, humidity, plate thickness, and warping degree.

[0022] In a preferred embodiment of the present application, the method further comprises (four) data processing

[0023] The recorded parameters and collected data are used to evaluate the deformation of the plate under the coupling of humidity and mechanical stress, and to screen out plates with excellent performance in the same application environment.

[0024] Compared with the background art, the technical solution has the following advantages:

[0025] 1. The environment simulation cabin of the present application is designed specifically for deformation testing of artificial plates, can truly simulate the mechanical motion state in actual use, and can monitor data in real time, and has good accuracy, stability, and reliability in evaluating the anti-deformation of artificial plates.

[0026] 2. The multi-field coupling artificial plate accelerated deformation testing method of the present application is performed in a unified environment simulation cabin. Compared with the traditional detection, the detection period is shortened by the innovative multi-field coupling loading technology and intelligent control platform, and the needs of rapid production and detection evaluation of enterprises can be met.

[0027] 3. The present application provides an effective monitoring and rapid detection means for the deformation problem of artificial plates of production enterprises, and has practical significance for improving the application performance of artificial plates and the quality control and technological progress of the artificial plate industry. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 Figure 1 is a schematic diagram of the device structure of Example 1.

[0029] Figure 2 Figure 2 is a test site diagram of Example 2.

[0030] Figure 3 Figure 3 is a warping test diagram of Example 2.

[0031] Figure 4 Figure 4 is a static test state diagram of the device of Example 2.

[0032] 1 - rack, 11 - stand column, 12 - cross beam, 13 - bottom plate, 14 - universal wheel, 2 - servo motor, 3 - rotating shaft, 4 - slide rail, 5 - mechanical arm, 6 - plate, 7 - electric control touch cabinet, 8 - laser, 9 - laser beam. DETAILED DESCRIPTION

[0033] It should be noted that the terms "upper", "lower", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on 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.

[0034] One of the following embodiments of a multi-field coupling artificial board accelerated deformation test method uses an environment simulation chamber for testing, including a pretreatment stage, static testing, and dynamic testing.

[0035] (I) Pretreatment stage:

[0036] According to GB / T 17657-2022 "Physicochemical property test method for artificial board and veneered artificial board", the board is balanced at a temperature of (23±2)℃ and a relative humidity of (50±5)%. Through long-term environmental pretreatment, the board fully absorbs or releases moisture, reaches a balanced state with the environmental humidity, and thus more truly reflects the performance of the board in the actual use environment.

[0037] (II) Static testing:

[0038] The board is installed in a way that the cabinet door is opened, and the two opposite boards are in a closed state like double doors, and the temperature and humidity cycle is synchronized to simulate the temperature and humidity changes in the actual environment. The temperature is cycled between 20-40℃, the temperature rising rate is 2℃ / min, and the temperature falling rate is 3℃ / min; the relative humidity is cycled between 70%-90%, and the humidity change rate is 5% per minute. The thickness and warpage of the board are recorded at the corresponding time nodes, and the subsequent deformation data of the board is analyzed. The purpose is to simulate the static state of the board in use and obtain the anti-deformation performance data of the board under this state.

[0039] (III) Dynamic testing:

[0040] A mechanical loading device is used to apply a mechanical load of 60-80N to the board, and the loading speed is controlled at 1N / s. During the loading process, the temperature and humidity cycle is synchronized with the mechanical load, which can comprehensively investigate the anti-deformation performance of the board under complex environment, and the temperature and humidity cycle conditions are the same as those of the static testing method. The purpose is to simulate the mechanical load that the board bears in actual use and obtain dynamic anti-deformation performance data.

[0041] Example 1

[0042] The environment simulation chamber of this embodiment includes a rack 1, a mechanical loading module, an environment detection module, and a control module.

[0043] The rack 1 includes a bottom plate 13, a plurality of vertical columns 11 and cross beams 12, and universal wheels 14 arranged below the bottom plate. The vertical columns 11 are provided with hinges, and the board 6 is hung on the rack 1 in a manner of being connected to the hinges like a flat opening cabinet door. The cross beams 12 are connected to the top of the vertical columns 11 and are used to install motors and the like. The rack 1 is provided with structures (such as hole positions) that can be connected to the hinges, and the hinge positions meet the installation requirements. The width of the board 6 to be detected ranges from 300 mm to 650 mm, and the height ranges from 1200 mm to 2800 mm.

[0044] The mechanical loading module includes a servo motor 2, a rotating shaft 3, a sliding rail 4, a mechanical arm 5 and a measuring instrument. The servo motor 2 is used to control the rotation of the rotating shaft 3. The rotating shaft 3 is arranged beside the vertical column 11. The sliding rail 4 is arranged on the rotating shaft 3 and extends along the width direction of the board 6. The mechanical arm 5 is arranged on the sliding rail 4 and is in contact with the board 6. The front end of the mechanical arm 5 is provided with a gripping claw, which can realize pushing and pulling actions. A door ring is arranged on the board 6 by means of screws. The gripping claw of the mechanical arm 5 is connected to the door ring and is used to control the opening and closing movement of the board 6. The mechanical load applied to the board 6 can be set to 10-80 N, and the opening angle range is 0°-135°. The servo rotating mechanism can flexibly simulate the opening and using mode of the cabinet door, so that the equipment can adapt to the mechanical property detection of various types of boards 6 and provide support for the study of the anti-deformation ability of the board 6 under dynamic load.

[0045] The measuring instrument includes a laser 8, specifically a laser emitter and a laser receiver arranged at opposite positions of the cross beam 12 and the bottom plate 13 to set a baseline, and various measuring scales (such as a ruler and a screw micrometer). The embodiment can adopt a long board length direction deformation measuring mechanism and measuring device disclosed in Chinese Patent CN221055712U or other devices capable of measuring.

[0046] The environmental detection module includes a temperature and humidity sensor distributed in the environmental simulation cabin.

[0047] The control module includes an electric control touch cabinet 7 and a processor. The electric control touch cabinet 7 is electrically connected to the mechanical loading module and the environmental detection module and is controlled by using a PLC touch screen. The processor is used to integrate programs. In the process of the experiment, the temperature and humidity signals in the environmental simulation cabin are collected, processed and adjusted, the mechanical load module is set to run, and the accurate and convenient use requirements in the detection experiment process are met.

[0048] The environment simulation cabin of the embodiment has a space with precise temperature and humidity control, the temperature control range is between 10-45℃, the accuracy is ±0.5℃, the humidity control range is between 20%-95%, and the accuracy is ±2%. The wide temperature and humidity control range can simulate various complex environmental conditions that the board 6 may encounter in actual use. By setting multiple temperature and humidity sensors in the simulation cabin, real-time collection of cabin environment data is realized, and the data is fed back to the control system electric control touch cabinet 7 for accurate control, ensuring the uniformity and stability of the temperature and humidity in the cabin, and providing reliable environmental simulation conditions for the deformation resistance detection of the board 6.

[0049] Embodiment 2

[0050] The embodiment is a multi-field coupling artificial board accelerated deformation test method, which uses the environment simulation cabin of embodiment 1 for testing, including a pretreatment stage, a static test, and a dynamic test.

[0051] Four kinds of particle boards (plain boards) and four kinds of impregnated film paper veneer particle boards are selected as follows. The corresponding numbers are HZ plain board, LZ plain board, 25FR plain board, FL730 plain board, 18FR veneer, 25FR veneer, FL730 veneer, and LZ veneer, provided by Jinpai Kitchen Cabinet Home Technology Co., Ltd.

[0052] (I) Pretreatment stage

[0053] The physicochemical property test results of the eight test boards are shown in Table 1, and the density of the test boards ranges from 0.62 to 0.75 g / cm3. Among them, the water absorption thickness expansion rates of 25FR plain board and 25FR veneer are the highest, which are 21.0% and 20.8% respectively, which preliminarily reflects that the dimensional stability of 25FR particle board is poor, and the board 6 is more prone to warping deformation.

[0054] Table 1

[0055]

[0056] (II) Static test:

[0057] Test board specifications and installation method: the thickness of the board is about 18mm, the length is 2697mm, and the width is 600mm. The number of each board 6 to be tested is 1. Use hinges to install the test board on the rack 1, and the installation method is the same as the normal cabinet door installation. Six positions are set on each board 6 as measurement points (for example, 50mm away from the board edge, three positions are set on the side close to the hinge and the side far from the hinge respectively, as shown in Figure 2 ), which are used to measure the thickness of the board 6. Record the change of the thickness of the corresponding position with time, and the time is 0, 3, 7, and 10 days after the start of the experiment, and the screw micrometer (accuracy 0.001mm) is used for measurement.

[0058] The size of the warping degree (distance from the edge of the board 100 mm, with the hinge side as the top and the non-hinge side as the bottom) and the size of the diagonal warping degree were measured on the upper and lower parts of the board 6, and the diagonal was divided into the near hinge end and the far hinge end according to the distance from the double-hole hinge on the upper part of the board 6. The test position (as shown by the dashed line) and the overall measurement point position (as shown by ①-⑥) were as shown in the figure. Figure 2 The laser ray 9 was used as the reference line for the two ends of the warping, and the distance between the board surface and the reference line at the farthest position was recorded as the warping degree value using a scale (with an accuracy of 0.1 mm), as shown in the figure. Figure 2 The warping degree of the upper and lower horizontal lines exceeded -3.0-3.0 mm, and the warping degree of the diagonal line exceeded -5.0-5.0 mm, indicating that the board 6 was severely deformed. The sizes at the 0th, 3rd, 7th, and 10th days of the experiment were recorded. Figure 3

[0059] The positive and negative values of the warping degree were determined according to the specified side before the test. If the board 6 warped towards the other side, it was recorded as a negative number.

[0060] During the data collection process, real-time monitoring and processing of the collected data were performed to ensure the integrity and accuracy of the data. Once data anomalies were found, immediate inspection and correction were performed to ensure data quality.

[0061] The static test reflects the state of the board 6 without opening, and the board 6 presents different deformations with the accelerated changes in temperature and humidity. Table 2 is the data obtained after the static test of the equipment. Under the accelerated temperature and humidity environment, the thickness of different boards 6 changes significantly over time. The overall expansion of the blank board is obvious, among which the expansion of the 25FR blank board is the most prominent, with an average thickness increase from 18.096 mm to 19.778 mm within 10 days, an increase of 9.3%, and the thickness of the FL730 blank board also increases by 7.1%. In contrast, the expansion of the veneered board is significantly slowed down due to the surface treatment process that inhibits moisture absorption, such as the FL730 veneered board, which only thickens by 0.186 mm within 10 days, an increase of 1.0%, and the LZ veneered board has an even smaller increase of 0.42%. As time goes on, the expansion rate gradually slows down, with the FL730 blank board increasing in thickness by 0.689 mm in the first 3 days and only by 0.595 mm in the last 7 days, indicating that the material's moisture absorption is close to saturation. It is worth noting that the 25FR particle board, whether blank or veneered, is sensitive to humidity, and although the veneer treatment reduces its expansion, it is still higher than that of other veneered boards. The experiment shows that the veneer process can improve the dimensional stability of the board 6, especially in a humidity-sensitive environment, and the veneer processes of FL730 and LZ perform excellently, while the 25FR particle board needs further optimization to reduce moisture absorption.

[0062] Table 2

[0063] ​

[0064] Table 3 is the data of the warpage change over time after the static test of the device. In the accelerated temperature and humidity static test, the warpage change over time of different boards 6 shows significant differences. The overall warpage of the blank board fluctuates greatly: the warpage of the HZ blank board on the upper edge changes from 5.5 mm initially to 1.5 mm on the 7th day and then slightly rises, and the warpage near the hinge changes from 6.5 mm to 3 mm, showing that the initial deformation is severe; the warpage of the LZ blank board changes from positive to negative, the lower edge changes from 7.0 mm to -4.0 mm, and the far hinge changes from 8.0 mm to -3.5 mm, and the board is fully depressed after 10 days, indicating that the material has a risk of structural collapse in a high-humidity environment; the FL730 blank board has a significant initial depression, and the upper and lower edges are both -5.0 mm, but rebound to positive values rapidly after 3 days and tend to be stable, showing a certain self-recovery ability. In contrast, the stability of the veneered board is significantly improved: the warpage of the 25FR veneered board at each position is always stable at 2.5-3.5 mm, and the anti-deformation effect is best; the warpage of the FL730 veneered board is initially high, and the upper edge is 6.0 mm, but the fluctuation narrows to about 5.0 mm within 10 days; the warpage of the LZ veneered board still fluctuates slightly at some positions, and the warpage near the hinge changes from 5.0 mm to 2.5 mm, so the veneering process needs to be optimized. The abnormal phenomena include that the warpage of the 18FR veneered board on the lower edge increases to -6.5 mm on the 3rd day, which may be related to defects in the veneer layer; the warpage of the 25FR blank board does not change significantly with moisture absorption, which is inconsistent with the thickness expansion data, and the experimental conditions need to be verified. Overall, the veneering process can effectively suppress warpage.

[0065] Table 3

[0066]

[0067] (Three) Dynamic test:

[0068] Table 4 is a record of the thickness change of the board 6 under the dynamic switching operation while the board 6 is accelerated by the temperature and humidity cycle. In the dynamic temperature and humidity and switching cycle test, the thickness change of different boards 6 presents significant differences, reflecting the coupling effect of mechanical stress and moisture absorption expansion. The moisture absorption expansion of the plain board is generally intensified, and the thickness of the LZ plain board increases from 17.955 mm to 19.061 mm, and the dynamic stress amplifies the unevenness of the board 6; the FL730 plain board increases by 8.7%, which is higher than the static test of 7.1%, but the data of point 3 is abnormally low at 19.348 mm at 10 days, which needs to be checked for local defects. The veneered board shows differentiation, and the 25FR veneer has the best stability, with a thickness increase of only 0.23%, and the expansion at each point is uniform, with an average of 18.245 mm at 10 days, suitable for dynamic high-humidity scenarios; while the FL730 veneer thickness unexpectedly shrinks by 2.9%, slightly increases by 0.1% under static conditions, and it is speculated that the dynamic stress releases the internal residual stress, offsetting the moisture absorption effect. The thickness of the 18FR veneer drops sharply, and the 10th day is 18.083 mm, and point 4 drops from 18.947 mm to 18.149 mm, or the veneer layer is detached due to dynamic cycle. The LZ veneer shrinks by 0.3% under dynamic conditions, and increases by 0.42% under static conditions, indicating that mechanical stress inhibits moisture absorption but may cause fatigue damage. Dynamic conditions significantly affect the behavior of the board 6, and the 18FR veneer and the FL730 veneer need to be optimized to cope with the stress-humidity coupling effect.

[0069] Table 4

[0070]

[0071] The record data of the board 6 warpage change over time under the dynamic test of the equipment is shown in Table 5. In the dynamic temperature and humidity and switching cycle coupling test, the warpage change of different boards 6 presents significant differences, revealing the complex interaction between mechanical stress and moisture absorption deformation. The plain board generally shows a dramatic fluctuation in warpage under dynamic stress, and the HZ plain board initially has a deep depression, with a near-hinge warpage of -16.0 mm, which rebounds to a positive value after 3 days, with an upper edge of 4.0 mm, but subsequent fluctuations continue, with a far-hinge warpage of 5.5 mm at 10 days, showing the repeated response of the board 6 between moisture absorption expansion and mechanical fatigue. The LZ plain board initially has high warpage, with a lower edge of 18.5 mm, which collapses to near flat within 10 days, with a far-hinge of 1.5 mm, and the dynamic stress accelerates the moisture absorption softening and structural instability of the particle board substrate. The veneered board shows a slower change in warpage under dynamic stress, and the 25FR veneer has a sharp drop to -10.0 mm at the far-hinge at 10 days, with a high degree of warping deformation, while the FL730 veneer has an initial depression, with an upper edge of -5.5 mm, which gradually recovers to a stable positive value, becoming 2.0 mm at 10 days. Compared with the FL730 plain board, the FL730 veneer warpage tends to be stable from 7 to 10 days, reflecting that the veneer process can improve the deformation resistance. The LZ veneer has an abnormally sharp increase in warpage to 9.5 mm at the 3rd day, which may be due to instantaneous stress concentration or environmental fluctuation interference.

[0072] Table 5

[0073]

[0074] From the test results, the multi-field coupling artificial board accelerated deformation test method of the embodiment can effectively solve the problems of long deformation resistance cycle and difficult rapid detection of artificial boards. Through static and dynamic loading and accelerated temperature and humidity test of the equipment, the deformation behavior of the board 6 under the coupling action of humidity and mechanical stress can be systematically evaluated, which provides an effective monitoring and rapid detection means for the deformation problem of the artificial board of the production enterprise, meets the needs of rapid production and detection evaluation of the enterprise, is beneficial to the selection of the board 6 adapted to different environments or the screening and optimization of the board 6 with excellent performance under the same environment, and has practical significance for improving the application performance of the artificial board and the quality control and technical progress of the artificial board industry.

[0075] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An environmental chamber, characterized by: The rack, the mechanical loading module, the environment detection module and the control module are included. The rack includes several columns, and hinges are arranged on the columns to suspend and install the plates in the form of flat opening cabinet doors.

2. An environmental chamber according to claim 1, wherein: The mechanical loading module includes a motor, a rotating shaft, a slide rail, a mechanical arm and a measuring instrument.

3. An environmental chamber according to claim 1, wherein: The motor is used to control the rotation of the rotating shaft.

4. An environmental chamber according to claim 3, wherein: The slide rail is arranged on the rotating shaft and extends along the width direction of the plate.

5. An environmental chamber according to claim 3, wherein: The mechanical arm is arranged on the slide rail and contacts the plate.

6. An environmental chamber as claimed in claim 1, characterized in that: The measuring instrument includes a laser.

7. A multi-field coupled artificial board accelerated deformation test method, characterized in that: The environment detection module includes a temperature and humidity sensor. The control module is electrically connected with the mechanical loading module and the environment detection module. A door ring is arranged on the plate by screws, and the mechanical arm is connected with the door ring. The rack includes a bottom plate and a cross beam. The columns are installed on the bottom plate, and the cross beam is connected to the top of the columns. The measuring instrument includes a laser emitter and a laser receiver arranged at opposite positions of the cross beam and the bottom plate, and further includes a measuring scale. Universal wheels are arranged under the bottom plate.

8. The multi-field coupled accelerated deformation test method for wood-based panels according to claim 7, characterized in that: The control module includes an electric control touch cabinet and a data processor.

9. The multi-field coupled accelerated deformation test method for wood-based panels according to claim 7, characterized in that: The electric control touch cabinet is provided with a PLC touch screen.

10. The multi-field coupled accelerated deformation test method for wood-based panels according to claim 7, characterized in that: The environmental simulation cabin is used for testing, including the following steps: (1) Pretreatment: Adjust the environmental simulation cabin to a temperature of 23±2℃ and a relative humidity of 50±5%, and place the plate in the environment to reach a temperature and humidity equilibrium state; (2) Static test: At least two plates are installed in the form of flat opening cabinet doors, and the opposite two plates are in a closed state. The temperature is controlled to cycle between 20-40℃, with a heating rate of 2℃ / min and a cooling rate of 3℃ / min. The relative humidity is controlled to cycle between 70%-90%, with a humidity change rate of 5% per minute. At least 6 measurement points are set for each plate, and the data of the measurement points at each parameter change node are recorded; (3) Dynamic test: Maintain the temperature and humidity cycle in step (2), set the mechanical arm of the mechanical loading module to apply a mechanical load of 10-80N to the plate surface, control the loading speed at 1N / s, and dynamically open and close the plate by the motor and the rotating shaft, control the opening and closing angle range to be 0-135°; record the data of the measurement points at each parameter change node. At least 3 positionally opposite measurement points are arranged on the near-hinge side and the far-hinge side of the plate. The recorded parameters or data include temperature, humidity, plate thickness and warping degree. Further including: (4) Data processing: Evaluate the deformation of the plate under the coupling effect of humidity and mechanical stress by using the recorded parameters and collected data.

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