Constant-temperature and constant-humidity box body structure for testing thermal shrinkage rate of thin film

Abstract

The utility model relates to the technical field of constant-temperature and constant-humidity box bodies, in particular to a constant-temperature and constant-humidity box body structure for testing the thermal shrinkage rate of a film, which comprises a box body, a side door is hinged to the front end of the box body through a hinge, and an air port assembly is arranged on the inner wall surface in a cavity of the box body; the air port assembly comprises a rectangular box and an air pipe, an adjusting assembly is arranged in a cavity of the rectangular box, and the adjusting assembly comprises a rectangular frame and a partition plate. An air port assembly for air inlet and outlet in a box cavity is improved, the air port assembly comprises a rectangular box and an air pipe, an adjusting assembly for controlling the air volume of the air pipe is arranged in a rectangular box cavity, a driving unit is arranged between a rectangular frame and partition plates, the two partition plates are controlled to be close to each other, and then the air volume of the air inlet and outlet pipe is controlled; through fine control over the air volume, the air flowing speed in the constant-temperature and constant-humidity box body can be more effectively adjusted, and therefore the stability and accuracy of the temperature and humidity in the box body can be better maintained.

Description

Technical Field

[0001] This application relates to the field of temperature and humidity chamber technology, and in particular to the structure of a temperature and humidity chamber for testing the thermal shrinkage rate of thin films. Background Technology

[0002] Thin film heat shrinkage rate testing requires quantifying the deformation characteristics of the material after heating (such as longitudinal / transverse shrinkage rate) under specific temperature and humidity conditions. The test results are directly controlled by the stability and uniformity of environmental parameters.

[0003] Conventional temperature and humidity control chambers primarily rely on built-in heaters and refrigerators to precisely alter the air temperature, thereby achieving fine-tuning of the chamber's internal temperature. Simultaneously, to maintain the required humidity level, the chamber is equipped with a humidifier, which continuously adds moisture to the air to increase the humidity within the chamber. This entire temperature and humidity control process is accomplished through a precisely designed air duct system, which accurately delivers treated air and steam into the chamber, ensuring a stable environment.

[0004] However, the existing design has a limitation: the size of the air inlet is fixed and cannot be adjusted. This design flaw makes it difficult to achieve higher precision in temperature and humidity control. Because the air inlet size is not adjustable, it means that the airflow and steam input cannot be flexibly adjusted according to actual needs, thus affecting the stability and accuracy of temperature and humidity control.

[0005] In high-precision applications such as thin film heat shrinkage rate testing, the requirements for temperature and humidity fluctuation errors are even higher. Excessive temperature and humidity fluctuation errors will lead to inaccurate data.

[0006] Therefore, this application proposes a constant temperature and humidity chamber structure for testing the thermal shrinkage rate of thin films. Utility Model Content

[0007] To address the problems mentioned in the background section, this application provides a constant temperature and humidity chamber structure for testing the thermal shrinkage rate of thin films.

[0008] The constant temperature and humidity chamber structure for testing the thermal shrinkage rate of thin films provided in this application adopts the following technical solution: it includes a chamber, the front end of which is connected to a side door by a hinge, and multiple sets of air inlet assemblies for gas inlet and outlet are provided on the inner wall surface of the chamber cavity.

[0009] The air inlet assembly includes a rectangular box and an air pipe. The rectangular box is open at one end and a protective net is installed at the open end of the rectangular box. The air pipe is connected to the rectangular box, and an adjustment component for controlling the air volume of the air pipe is provided inside the rectangular box cavity.

[0010] The adjustment component includes a rectangular frame and partitions. There are two sets of partitions, which are movably engaged within the rectangular frame cavity. A drive unit is also provided between the rectangular frame and the partitions. The drive unit includes a rotating shaft and a moving slider.

[0011] According to the above scheme, the air inlet assembly includes a rectangular box and an air pipe. The air pipe is connected to the rectangular box. An adjustment component is set in the rectangular box cavity to control the air volume of the air pipe. Two sets of partitions are movably engaged in the rectangular frame cavity. A drive unit is set between the rectangular frame and the partitions to control the two sets of partitions to move closer or further apart, thereby realizing the control of the air volume of the air pipe. Through the precise control of the air volume, the air flow speed in the constant temperature and humidity chamber can be more effectively adjusted, which helps to maintain the stability and accuracy of the temperature and humidity in the chamber.

[0012] Optionally, an arc-shaped air guide plate is fixedly installed at the bottom of the rectangular box cavity.

[0013] The above method involves fixing an arc-shaped air guide plate at the bottom of the rectangular box cavity to guide the airflow.

[0014] Optionally, the rectangular frame is fixedly installed at the top of the rectangular box cavity, and movable sliders are fixedly installed at both ends of the partition. A rectangular groove is opened on the inner wall of the rectangular frame, and the movable slider is movably engaged in the corresponding rectangular groove.

[0015] With the above solution, a rectangular frame is fixedly installed at the top of the rectangular box cavity, and movable sliders are fixedly installed at both ends of the partition. A rectangular groove is opened on the inner wall of the rectangular frame, and the movable slider is movably engaged in the corresponding rectangular groove. Thus, the two sets of partitions are movably engaged in the rectangular frame cavity, and the two sets of rectangular frames move along the direction of the rectangular groove.

[0016] Optionally, the rectangular frame has two rectangular slots, and the adjustment assembly further includes a smooth guide rod fixedly installed in the rectangular slot, the smooth guide rod movably passing through the corresponding movable slider, and the rotating shaft movably installed in another rectangular slot, the rotating shaft movably passing through the corresponding two sets of movable sliders.

[0017] With the above scheme, a smooth guide rod is set to move through the corresponding movable slider, and a rotating shaft is movably installed in another rectangular groove. The rotating shaft moves through the corresponding two sets of movable sliders, and the smooth guide rod plays a role in limiting and guiding the movement of the movable slider.

[0018] Optionally, the outer wall of the rotating shaft is provided with a set of reverse threads, the two sets of movable sliders are threadedly connected to the rotating shaft, and the two sets of movable sliders are located on both sides of the rotating shaft.

[0019] With the above scheme, a set of reverse threads is opened on the outer wall of the rotating shaft, and the two sets of movable sliders are threadedly connected to the rotating shaft. The two sets of movable sliders are located on both sides of the rotating shaft. When the rotating shaft rotates, the two sets of movable sliders move closer to each other or further away from each other, and the two sets of movable sliders drive the corresponding partitions to move closer to each other or further away from each other.

[0020] Optionally, the drive unit further includes a drive shaft, one end of which movably passes through the rectangular frame and is fixedly connected to the rotation shaft, and the other end of the drive shaft is fixedly connected to a first helical gear.

[0021] With the above scheme, one end of the drive shaft is movably connected through the rectangular frame and fixedly connected to the rotating shaft, while the other end of the drive shaft is fixedly connected to the first helical gear. The rotation of the first helical gear drives the rotating shaft to rotate through the drive shaft.

[0022] Optionally, the drive unit further includes a servo motor fixedly mounted on the top of the rectangular box. The output shaft of the servo motor movably passes through the rectangular box and is fixedly connected to a second helical gear, which meshes with the first helical gear.

[0023] With the above scheme, during adjustment, the servo motor drives the second helical gear to rotate, and the second helical gear meshes with the first helical gear. The two ends of the drive shaft are fixedly connected to the first helical gear and the rotating shaft, respectively. Thus, the second helical gear rotates to drive the first helical gear, and the first helical gear drives the rotating shaft to rotate synchronously.

[0024] In summary, this application includes the following beneficial technical effects:

[0025] 1. This utility model improves the air inlet assembly for gas entry and exit within the chamber. The air inlet assembly includes a rectangular box and an air pipe, with the air pipe communicating with the rectangular box. An adjustment component for controlling the airflow of the air pipe is installed within the rectangular box cavity. Two sets of partitions are movably engaged within the rectangular frame cavity. A drive unit is installed between the rectangular frame and the partitions to control the two sets of partitions to move closer or further apart, thereby controlling the airflow of the entry and exit air pipes. Through precise control of the airflow, the airflow speed within the constant temperature and humidity chamber can be more effectively adjusted, thus helping to maintain the stability and accuracy of the temperature and humidity within the chamber.

[0026] 2. This utility model has a set of reverse threads on the outer wall of the rotating shaft, and the two sets of movable sliders are threadedly connected to the rotating shaft. The two sets of movable sliders are located on both sides of the rotating shaft. When the rotating shaft rotates, the two sets of movable sliders move closer to each other or further away from each other, and the two sets of movable sliders drive the corresponding partitions to move closer to each other or further away from each other. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the appearance of this application;

[0028] Figure 2 This is a schematic diagram of the internal structure of the box cavity in this application;

[0029] Figure 3 This is a three-dimensional structural diagram of the air inlet assembly of this application;

[0030] Figure 4 This is a bottom view of the air inlet assembly cavity of this application;

[0031] Figure 5 This is a schematic diagram showing the connection relationship between the partition and the drive unit in this application.

[0032] Reference numerals: 10. Box body; 11. Side door; 12. Air inlet assembly; 13. Rectangular box; 14. Protective net; 15. Air pipe; 16. Rectangular frame; 17. Partition; 18. Moving slider; 19. First helical gear; 20. Second helical gear; 21. Servo motor; 22. Rotating shaft; 23. Smooth guide rod. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses the structure of a constant temperature and humidity chamber for testing the thermal shrinkage rate of thin films. For example... Figure 1 As shown, the device includes a housing 10, with a side door 11 connected to the front of the housing 10 via a hinge. Multiple sets of air inlet assemblies 12 for gas inlet and outlet are installed on the inner wall of the housing 10 cavity. Each air inlet assembly 12 includes a rectangular box 13 and an air pipe 15. The rectangular box 13 is open at one end, and a protective net 14 is installed at the open end. The air pipe 15 communicates with the rectangular box 13. An adjustment assembly for controlling the airflow of the air pipe 15 is installed inside the rectangular box 13 cavity. The adjustment assembly includes a rectangular frame 16 and partitions 17. There are two sets of partitions 17, which are movably engaged within the rectangular frame 16 cavity. A drive unit is also provided between the rectangular frame 16 and the partitions 17. The drive unit includes a rotating shaft 22 and a moving slider 18.

[0035] This application improves the air inlet assembly 12 for gas inlet and outlet within the chamber 10. The air inlet assembly 12 includes a rectangular box 13 and an air pipe 15, which is connected to the rectangular box 13. An adjustment component for controlling the airflow of the air pipe 15 is installed in the chamber of the rectangular box 13. Two sets of partitions 17 are movably engaged within the chamber of the rectangular frame 16. A drive unit is installed between the rectangular frame 16 and the partitions 17 to control the two sets of partitions 17 to move closer or further apart, thereby controlling the airflow of the air inlet and outlet of the air pipe 15. Through precise control of the airflow, the airflow speed within the constant temperature and humidity chamber 10 can be more effectively adjusted, thus helping to maintain the stability and accuracy of the temperature and humidity within the chamber 10.

[0036] Please see Figure 3 An arc-shaped air guide plate is fixedly installed at the bottom of the rectangular box 13 cavity.

[0037] An arc-shaped air guide plate is fixedly installed at the bottom of the rectangular box 13 to guide the airflow.

[0038] The rectangular frame 16 is fixedly installed at the top of the cavity of the rectangular box 13. The two ends of the partition 17 are respectively fixedly installed with movable sliders 18. The inner wall of the rectangular frame 16 is provided with a rectangular groove, and the movable sliders 18 are movably engaged in the corresponding rectangular grooves.

[0039] By fixing the rectangular frame 16 to the top of the cavity of the rectangular box 13, and fixing the movable sliders 18 to both ends of the partition 17 respectively, the inner wall of the rectangular frame 16 is provided with a rectangular groove, and the movable sliders 18 are movably engaged in the corresponding rectangular groove, so that the two sets of partitions 17 are movably engaged in the cavity of the rectangular frame 16, and the two sets of rectangular frames 16 move along the direction of the rectangular groove.

[0040] Please see Figure 4 The rectangular frame 16 has two rectangular slots. The adjustment assembly also includes a smooth guide rod 23 fixedly installed in the rectangular slot. The smooth guide rod 23 movably passes through the corresponding movable slider 18. The rotating shaft 22 is movably installed in another rectangular slot. The rotating shaft 22 movably passes through the corresponding two sets of movable sliders 18.

[0041] By setting a smooth guide rod 23 that movably passes through the corresponding movable slider 18, and a rotating shaft 22 that is movably installed in another rectangular groove, the smooth guide rod 23 plays a role in limiting and guiding the movement of the movable slider 18.

[0042] Please see Figure 5 The outer wall of the rotating shaft 22 is provided with a set of reverse threads, and the two sets of movable sliders 18 are threadedly connected to the rotating shaft 22, with the two sets of movable sliders 18 located on both sides of the rotating shaft 22.

[0043] By providing a set of reverse threads on the outer wall of the rotating shaft 22, the two sets of movable sliders 18 are threadedly connected to the rotating shaft 22, and the two sets of movable sliders 18 are located on both sides of the rotating shaft 22. When the rotating shaft 22 rotates, the two sets of movable sliders 18 move closer to each other or further away from each other, and the two sets of movable sliders 18 drive the corresponding partitions 17 to move closer to each other or further away from each other.

[0044] The drive unit also includes a drive shaft, one end of which movably passes through the rectangular frame 16 and is fixedly connected to the rotating shaft 22, and the other end of which is fixedly connected to a first helical gear 19. The drive unit also includes a servo motor 21 fixedly mounted on the top of the rectangular box 13, the output shaft of the servo motor 21 movably passes through the rectangular box 13 and is fixedly connected to a second helical gear 20, which meshes with the first helical gear 19.

[0045] During adjustment, the servo motor 21 drives the second helical gear 20 to rotate. The second helical gear 20 meshes with the first helical gear 19. The two ends of the drive shaft are fixedly connected to the first helical gear 19 and the rotating shaft 22, respectively. Thus, the rotation of the second helical gear 20 drives the first helical gear 19, and the first helical gear 19 drives the rotating shaft 22 to rotate synchronously. The rotation of the rotating shaft 22 controls the two sets of moving sliders 18 to move closer to each other or further away from each other.

[0046] The implementation principle of the constant temperature and humidity chamber structure for film heat shrinkage rate testing in this application embodiment is as follows: A rectangular frame 16 is fixedly installed at the top of the cavity of a rectangular box 13, and movable sliders 18 are fixedly installed at both ends of the partition 17. A rectangular groove is opened on the inner wall of the rectangular frame 16, and the movable sliders 18 are movably engaged in the corresponding rectangular grooves. Thus, the two sets of partitions 17 are movably engaged in the cavity of the rectangular frame 16, and the two sets of rectangular frames 16 move along the direction of the rectangular grooves. A set of reverse threads is opened on the outer wall of the rotating shaft 22, and the two sets of movable sliders 18 are threadedly connected to the rotating shaft 22. The two sets of movable sliders 18 are located on both sides of the rotating shaft 22. When the rotating shaft 22 rotates, the two sets of movable sliders 18 move closer to each other or further away from each other. The two sets of movable sliders 18 drive the corresponding partitions 17 to move closer to each other or further away from each other, thereby realizing the control of the air volume of the inlet and outlet air pipes 15. Through the precise control of the air volume, the air flow speed in the constant temperature and humidity chamber 10 can be more effectively adjusted, which helps to maintain the stability and accuracy of the temperature and humidity in the chamber 10.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A constant temperature and humidity chamber structure for film heat shrinkage test, comprising a chamber (10), characterized in that: The front end of the box (10) is hinged connected with a side door (11), and a plurality of air port assemblies (12) for air inlet and outlet are arranged on the inner wall surface in the cavity of the box (10); The air port assembly (12) comprises a rectangular box (13) and an air pipe (15), the rectangular box (13) is an open-end rectangular box (13), a protective net (14) is arranged on the open end of the rectangular box (13), the air pipe (15) penetrates through the rectangular box (13), and an adjusting assembly for controlling the air volume of the air pipe (15) is arranged in the cavity of the rectangular box (13); The adjusting assembly comprises a rectangular frame (16) and a baffle (17), the baffle (17) is in two groups, the two groups of baffles (17) are movably clamped in the cavity of the rectangular frame (16), and a driving unit is further arranged between the rectangular frame (16) and the baffle (17), the driving unit comprises a rotating shaft (22) and a moving sliding block (18).

2. The constant temperature and humidity chamber structure for thin film heat shrinkage test according to claim 1, characterized in that: An arc-shaped air deflector is fixedly installed at the bottom end in the cavity of the rectangular box (13).

3. The constant temperature and humidity chamber structure for thin film heat shrinkage test according to claim 1, characterized in that: The rectangular frame (16) is fixedly installed at the top end in the cavity of the rectangular box (13), moving sliding blocks (18) are fixedly installed at two ends of the baffle (17) respectively, a rectangular groove is formed in the inner wall surface of the rectangular frame (16), and the moving sliding blocks (18) are movably clamped in the corresponding rectangular grooves.

4. The constant temperature and humidity chamber structure for thin film heat shrinkage test according to claim 3, characterized in that: The number of the rectangular grooves of the rectangular frame (16) is two, the adjusting assembly further comprises a smooth guide rod (23) fixedly installed in the rectangular grooves, the smooth guide rod (23) movably penetrates through the corresponding moving sliding blocks (18), the rotating shaft (22) is movably installed in the other rectangular groove, and the rotating shaft (22) movably penetrates through the corresponding two groups of moving sliding blocks (18).

5. The constant temperature and humidity chamber structure for thin film heat shrinkage test according to claim 4, characterized in that: A group of reverse threads are formed in the outer wall surface of the rotating shaft (22), the two groups of moving sliding blocks (18) are in a threaded connection relationship with the rotating shaft (22), and the two groups of moving sliding blocks (18) are located on the two sides of the rotating shaft (22). 6.The constant temperature and humidity chamber structure for thin film thermal shrinkage test according to claim 1, characterized in that: The driving unit further comprises a driving shaft, one end of the driving shaft movably penetrates through the rectangular frame (16) and is fixedly connected with the rotating shaft (22), and the other end of the driving shaft is fixedly connected with a first bevel gear (19).

7. The constant temperature and humidity chamber structure for thin film heat shrinkage test according to claim 6, characterized in that: The driving unit further comprises a servo motor (21) fixedly installed at the top end of the rectangular box (13), an output shaft of the servo motor (21) movably penetrates through the rectangular box (13) and is fixedly connected with a second bevel gear (20), and the second bevel gear (20) movably engages with the first bevel gear (19).

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