A heat resistance detection device for metalized film production

Abstract

The present application relates to a kind of heat resistance detection device for metalized film production, it is related to metalized film detection technical field.The aging test chamber main body is connected with sealing door by hinge, including aging test chamber main body.The present application when heating experiment is carried out in aging test chamber main body, when temperature detector detects that the temperature difference of different positions on film surface is larger, motor will be automatically started, motor works and drives rotating rod to rotate, rotating rod rotation drives first reciprocating lead screw to rotate, first reciprocating lead screw rotation drives air baffle to reciprocate with small amplitude, and then the air outlet position of air baffle is adjusted, so that hot air flow can be evenly distributed to film surface, and air baffle movement will drive guide vane to reciprocate with small amplitude, so that air flow can be more evenly entered into the inner cavity of aging test chamber main body in the process of adjustment, reduce the situation that film is heated unevenly, and then improve the accuracy of film heat resistance detection data.

Description

Technical Field

[0001] This invention relates to the field of metallized thin film testing technology, specifically to a heat resistance testing device for metallized thin film production. Background Technology

[0002] Metallized thin films are composite functional materials formed by depositing nanoscale metal layers on the surface of polymer insulating substrates through vacuum physical vapor deposition. Their core advantage is self-healing properties, making them the core basic material for thin-film capacitors. They are widely used in power electronics fields such as new energy vehicles, photovoltaic wind power, and industrial frequency conversion. High-end products generally adopt zinc-aluminum composite coating and gradient coating schemes to balance self-healing performance and high current conduction capability. Heat resistance testing equipment is required during the production process of metallized thin films.

[0003] Existing thin film heat resistance testing devices typically place the film under test on a rack inside a chamber and heat the chamber using an internal circulating air heating system to complete the heat resistance test. In these devices, the hot airflow is mainly delivered into the chamber through a distribution plate at the top. However, there are gaps between the openings of the distribution plate, making it difficult to ensure uniform alignment between the film's surface and the openings. This results in differences in heating efficiency across different areas of the film during the heat flow process, leading to uneven heating and reduced accuracy of the experimental data. Furthermore, metallized films release semi-volatile organic compounds during heating, which easily adsorb and deposit on the rack surface. As these organic compounds accumulate, they interfere with the heat resistance testing of subsequent batches of films, affecting the stability and reliability of the test results.

[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a heat resistance testing device for metallized thin film production, which solves the technical problem in the above-mentioned background technology where there are non-opening gaps between the openings of the air distribution plate of the thin film heat resistance testing device. When the film is placed, it is difficult to ensure that its surface and the openings of the air distribution plate are uniformly aligned and distributed. This results in differences in the heating efficiency of different areas of the film during the hot air flow heating process, which in turn causes uneven heating of the film as a whole and reduces the accuracy of experimental test data. This invention provides a solution that is significantly different from the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat resistance testing device for metallized thin film production, comprising an aging test chamber body, wherein the aging test chamber body is connected to a sealed door via a hinge, a temperature detector and a photoacoustic spectroscopy detector are installed on the outer wall of the aging test chamber body, and both the temperature detector and the photoacoustic spectroscopy detector are electrically connected to a controller of the aging test chamber body, an air outlet on the inner side of the aging test chamber body is connected to a vent plate via a corrugated pipe, connecting blocks are connected to both sides of the vent plate, a first reciprocating screw is threadedly connected to the connecting blocks, the first reciprocating screw is connected to a transmission gear, a motor is installed inside the aging test chamber body, and a rotating rod is connected to the output end of the motor, the rotating rod being sleeved with... The aging test chamber has a mating gear, and a guide plate is rotatably connected to the bottom of the vent plate, with the guide plate located below the vent of the vent plate. Side gears are connected to both ends of the guide plate. A toothed rod is connected to the inner wall of the main body of the aging test chamber, and the toothed rod meshes with the side gear. When the main body of the aging test chamber is heated, the motor will automatically start when the temperature detector detects a large temperature difference at different locations on the film surface. The motor drives the rotating rod to rotate, which in turn drives the first reciprocating screw to rotate. The rotation of the first reciprocating screw drives the vent plate to perform a small-amplitude reciprocating motion, thereby adjusting the air outlet position of the vent plate. This allows the hot airflow to be evenly distributed on the film surface, reducing uneven heating of the film and improving the accuracy of the film's heat resistance test data.

[0007] A placement component is disposed inside the main body of the aging test chamber.

[0008] Optionally, the placement assembly includes a placement frame connected to the inner cavity of the aging test chamber. The placement frame is rotatably connected to a second reciprocating screw, which is connected to a rotating rod via a transmission belt assembly. The second reciprocating screw is threadedly connected to a reciprocating inclined block. The placement frame is slidably connected to a sliding block. A one-way bearing is provided on the inner side of the sliding block, with one side of the one-way bearing connected to a rotating roller and the other side connected to the placement rod. The rotating roller is in contact with the reciprocating inclined block. A cleaning rod is connected to the side of the sliding block on the placement rod, and the cleaning rod is in contact with the placement rod. During the rotation of the rotating rod, the second reciprocating screw is also driven to rotate. The second reciprocating screw causes the sliding block to perform vertical reciprocating motion. During the reciprocating motion of the sliding block, the placement rod is driven to move. During the vertical movement of the placement rod, it also rotates, working in conjunction with the cleaning rod to clean the semi-volatile organic compounds adsorbed on the surface of the placement rod, reducing the adsorption of semi-volatile organic compounds on the placement rod. Furthermore, the cleaning process of the placement rod will not affect the film, reducing the impact of semi-volatile organic compound accumulation on the accuracy of the data.

[0009] Optionally, a rotating plate is connected to the inner side of the aging test chamber body, and the rotating plate is rotatably connected to the first reciprocating screw. The rotating plate is connected to a limiting plate, and the limiting plate is slidably connected to the connecting block.

[0010] Optionally, the mating gear has teeth with a circumference of one-quarter, and the teeth of the mating gear mesh with the teeth of the transmission gear.

[0011] Optionally, a filter screen is provided above the air inlet at the bottom inside the aging test chamber, and the two ends of the filter screen are beveled.

[0012] Optionally, the cleaning rod has beveled sides, and the beveled sides fit against the outer side of the placement rod.

[0013] Optionally, a spring is connected to the inner side of the placement frame, and the other end of the spring is connected to the sliding block. A telescopic rod is also connected to the inner side of the placement frame, and the telescopic end of the telescopic rod is connected to the sliding block.

[0014] Optionally, the inner wall of the placement frame is provided with a sliding protrusion, and the sliding protrusion is slidably connected to the reciprocating inclined block.

[0015] Optionally, there are a total of twenty-eight sets of placement rods, and each pair of placement rods consists of two sets, with the one-way bearings of each pair of placement rods rotating in opposite directions.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, when the aging test chamber body is subjected to a heating experiment, the motor will automatically start when the temperature detector detects a large temperature difference at different locations on the film surface. The motor drives the rotating rod to rotate, which in turn drives the first reciprocating screw to rotate. The first reciprocating screw drives the vent plate to perform a small-amplitude reciprocating motion, thereby adjusting the air outlet position of the vent plate. This allows the hot airflow to be evenly distributed on the film surface. Furthermore, during the movement of the vent plate, the guide plate will also cause a small-amplitude reciprocating swing, allowing the airflow to enter the inner cavity of the aging test chamber body more evenly during the adjustment process. This reduces uneven heating of the film and improves the accuracy of the film's heat resistance test data.

[0017] 2. In this invention, the rotating rod also drives the second reciprocating screw to rotate during rotation. The second reciprocating screw causes the sliding block to perform vertical reciprocating motion. During the reciprocating motion of the sliding block, the placement rod will move. During the vertical motion of the placement rod, it will also rotate. This, in conjunction with the cleaning rod, cleans the semi-volatile organic compounds adsorbed on the surface of the placement rod, reducing the adsorption of semi-volatile organic compounds on the placement rod. Furthermore, the cleaning process of the placement rod will not affect the film, reducing the impact of semi-volatile organic compound accumulation on data accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the closed appearance structure of the sealing door of the present invention; Figure 2 This is a schematic diagram of the opening appearance structure of the sealing door of the present invention; Figure 3 This is a side view of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A in the middle; Figure 5 This is a schematic diagram of the top surface structure of the present invention; Figure 6 This is a schematic diagram of the ventilation plate and placement frame structure of the present invention; Figure 7 This is a schematic diagram of the back structure of the vent plate of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram of section B; Figure 9 This is a schematic diagram of the placement component structure of the present invention; Figure 10 This is a schematic diagram of the side structure of the placement frame of the present invention; Figure 11 This is a schematic cross-sectional view of the placement frame of the present invention.

[0019] In the diagram: 1. Main body of aging test chamber; 2. Sealed door; 3. Ventilation plate; 4. Connecting block; 5. Motor; 6. Rotating rod; 7. Connecting gear; 8. Transmission gear; 9. First reciprocating screw; 10. Guide plate; 11. Side gear; 12. Gear rack; 13. Placement assembly; 131. Placement frame; 132. Second reciprocating screw; 133. Reciprocating inclined block; 134. Sliding block; 135. Rotating roller; 136. Placement rod; 137. Cleaning rod. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0021] Please see Figures 1 to 11This invention provides a technical solution: a heat resistance performance testing device for metallized thin film production, comprising an aging test chamber body 1, a sealing door 2 connected to the aging test chamber body 1 via a hinge, a temperature detector and a photoacoustic spectroscopy detector installed on the outer wall of the aging test chamber body 1, both of which are electrically connected to the controller of the aging test chamber body 1, an air outlet on the inner side of the aging test chamber body 1 connected to a vent plate 3 via a corrugated pipe, connecting blocks 4 connected to both sides of the vent plate 3, a first reciprocating screw 9 threadedly connected to the connecting blocks 4, a transmission gear 8 connected to the first reciprocating screw 9, a motor 5 installed inside the aging test chamber body 1, a rotating rod 6 connected to the output end of the motor 5, a mating gear 7 sleeved on the rotating rod 6, a guide plate 10 rotatably connected to the bottom of the vent plate 3, and the guide plate 10 located below the air outlet of the vent plate 3, side gears 11 connected to both ends of the guide plate 10, and a toothed rod 12 connected to the inner wall of the aging test chamber body 1, with the toothed rod 12 meshing with the side gear 11; Placement component 13 is located inside the main body 1 of the aging test chamber.

[0022] In one embodiment of the present invention, the placement assembly 13 includes a placement frame 131 connected to the inner cavity of the aging test chamber body 1. The placement frame 131 is rotatably connected to a second reciprocating screw 132, and the second reciprocating screw 132 is connected to a rotating rod 6 via a transmission belt assembly. The second reciprocating screw 132 is threadedly connected to a reciprocating inclined block 133. The placement frame 131 is slidably connected to a sliding block 134. A one-way bearing is provided on the inner side of the sliding block 134, and one side of the one-way bearing is connected to a rotating roller 135, and the other side of the one-way bearing is connected to a placement rod 136. The rotating roller 135 is in contact with the reciprocating inclined block 133. The sliding block 134 is located on the side of the placement rod 136 and is connected to a cleaning rod 137, and the cleaning rod 137 is in contact with the placement rod 136. In one embodiment of the present invention, a rotating plate is connected to the inner side of the aging test chamber body 1, and the rotating plate is rotatably connected to the first reciprocating screw 9. The rotating plate is connected to a limiting plate, and the limiting plate is slidably connected to the connecting block 4. The rotating plate limits the first reciprocating screw 9, thereby improving the stability of the first reciprocating screw 9 during rotation. The limiting plate also limits the connecting block 4, preventing the connecting block 4 from rotating with the first reciprocating screw 9. As one embodiment of the present invention, the docking gear 7 is provided with a quarter-circumference tooth, and the tooth of the docking gear 7 meshes with the tooth of the transmission gear 8. During the rotation of the docking gear 7, the transmission gear 8 can be driven to rotate intermittently, so that the transmission gear 8 rotates intermittently, thereby causing the connecting block 4 to reciprocate intermittently. As one embodiment of the present invention, a filter screen is provided above the air inlet at the bottom of the inner side of the aging test chamber body 1, and the two ends of the filter screen are beveled. By setting the filter screen, the organic deposits formed by the condensation of oligomers, plasticizers and small molecule additives in the gas in the inner cavity can be filtered to prevent them from entering the circulating air duct of the aging test chamber body 1. As one embodiment of the present invention, the cleaning rod 137 has beveled sides, and the beveled sides are in contact with the outer side of the placement rod 136. The beveled cleaning rod 137 cleans the adsorbent on the surface of the placement rod 136, reducing the accumulation of adsorbent that may cause data deviation. In one embodiment of the present invention, a spring is connected to the inner side of the placement frame 131, and the other end of the spring is connected to the sliding block 134. A telescopic rod is also connected to the inner side of the placement frame 131, and the telescopic end of the telescopic rod is connected to the sliding block 134. By providing the spring, the sliding block 134 can drive the rotating roller 135 to fit tightly against the reciprocating inclined block 133. The telescopic rod can limit the sliding block 134, improving the stability of the sliding block 134 during vertical movement. The telescopic rod can also limit the spring, reducing the possibility of spring deformation and misalignment. As one embodiment of the present invention, the inner wall of the placement frame 131 is provided with a sliding protrusion, and the sliding protrusion is slidably connected to the reciprocating inclined block 133. By providing the sliding protrusion to limit the reciprocating inclined block 133, the stability of the reciprocating inclined block 133 during the reciprocating horizontal movement is improved. As one embodiment of the present invention, a total of twenty-eight sets of placement rods 136 are provided, and each pair of twenty-eight sets of placement rods 136 is a pair. The one-way bearings of a pair of placement rods 136 rotate in opposite directions. By setting a pair of placement rods 136, the film can be supported and the placement rods 136 can be cleaned, and the cleaning process will not affect the film during the placement process.

[0023] Working principle: First, when testing the film, place the film above the placement rod 136, ensuring the film is at the detection position of the temperature detector probe. Then, close the sealing door 2 and start the heating system inside the aging test chamber body 1. Since the air outlet inside the aging test chamber body 1 is connected to the ventilation plate 3 via a corrugated pipe, hot air will be discharged through the holes in the ventilation plate 3. After the hot air is discharged, the inside of the aging test chamber body 1 will begin to heat up. When the temperature inside the aging test chamber body 1 reaches the film detection temperature, the temperature detector will detect the temperature of the film surface. When the film surface temperature is detected... When uneven heating occurs, motor 5 will be activated. Motor 5 drives rotating rod 6 to rotate, which in turn drives docking gear 7 to rotate. The rotation of docking gear 7 will intermittently drive transmission gear 8 to rotate, which in turn drives the first reciprocating screw 9 to rotate. Since the first reciprocating screw 9 is threadedly connected to connecting block 4 and the connecting block 4 is slidably connected to the limiting plate, the rotation of the first reciprocating screw 9 drives the connecting block 4 to reciprocate. The reciprocating motion of the connecting block 4 drives the vent plate 3 to reciprocate. The reciprocating motion of the vent plate 3 adjusts the output position of the circulating hot airflow, thereby reducing uneven heating of the film. Secondly, during the reciprocating motion of the vent plate 3, the guide plate 10 will also move. The movement of the guide plate 10 will drive the side gear 11 to move. Since the side gear 11 is meshed with the rack 12, the side gear 11 will also rotate under the influence of the rack 12 during horizontal movement. The rotation of the side gear 11 will drive the guide plate 10 to rotate. The reciprocating motion of the vent plate 3 will cause the guide plate 10 to swing back and forth in a small amplitude. The swinging of the guide plate 10 will change the airflow direction, so that the airflow can diffuse more gently into the inner cavity of the aging test chamber body 1, improve the uniformity of hot air in the inner cavity of the aging test chamber body 1, and thus reduce the uneven heating of the film. Then, since the rotating rod 6 is connected to the second reciprocating screw 132 through the transmission belt assembly, the rotating rod 6 will drive the second reciprocating screw 132 to rotate during its rotation. Since the second reciprocating screw 132 is threadedly connected to the reciprocating inclined block 133 and the reciprocating inclined block 133 is slidably connected to the limiting protrusion, the second reciprocating screw 132 will drive the reciprocating inclined block 133 to reciprocate during its rotation. Since the inclined surface of the reciprocating inclined block 133 is in contact with the lower rotating roller 135 and the top surface of the reciprocating inclined block 133 is in contact with the higher rotating roller 135, the reciprocating inclined block 133 will push the lower rotating roller 135 to move upward during its movement to one side. The lower rotating roller 135 will rotate due to friction during its upward movement. Since the rotating roller 135 is connected to the placement rod 136 through a one-way bearing, the rotation of the lower rotating roller 135 will drive the placement rod 136 to rotate clockwise. Finally, during the horizontal movement of the high-position rotating roller 135 with the reciprocating inclined block 133, because the one-way bearing connected to the low-position rotating roller 135 is in the opposite direction to the one-way bearing connected to the high-position rotating roller 135, the high-position rotating roller 135 cannot rotate during the unidirectional movement of the reciprocating inclined block 133. When both the low-position and high-position rotating rollers 135 are on the top surface of the reciprocating inclined block 133, the low-position placement rod 136 will support the original film. The reciprocating inclined block 133 will still move unidirectionally, causing the high-position rotating roller 135 to be affected by spring pressure and move downward against the inclined surface of the reciprocating inclined block 133. The high-position placement rod 136 will separate from the film. During this process, the film will not wobble, thus not affecting... Data monitoring shows that during the return stroke of the reciprocating inclined block 133, it will push the high-position rotating roller 135 upward again, and cause the low-position rotating roller 135 to move downward. During the upward movement of the high-position rotating roller 135, it will drive the high-position placement rod 136 to rotate. Then, the semi-volatile organic matter adsorbed on the surface of the high-position placement rod 136 can be cleaned by the inclined surface of the cleaning rod 137. In addition, the organic matter is not completely fixed during the cleaning process. Therefore, the cleaning rod 137 has a good cleaning effect on the surface of the placement rod 136, which can effectively avoid the organic matter from affecting the subsequent film testing. The organic matter separated from the placement rod 136 will fall into the bottom filter screen inside the aging test chamber body 1, which is convenient for subsequent unified treatment by the staff. Based on the above, when the temperature inside the aging test chamber 1 reaches the film detection temperature, semi-volatile organic compounds will be generated on the surface of the film. Some of these semi-volatile organic compounds are easily adsorbed and adhered to the surface of the placement rod 136, while the other part of the semi-volatile organic compounds are dispersed in the inner cavity of the aging test chamber 1. Since the probe of the photoacoustic spectrometer is located in the inner cavity of the aging test chamber 1, the photoacoustic spectrometer will detect the dispersed semi-volatile organic compounds in the inner cavity. When the concentration of semi-volatile organic compounds is high, the photoacoustic spectrometer will increase the rotation speed of the output end of the motor 5 through the controller of the aging test chamber 1. The increased rotation speed of the motor 5 increases the frequency of switching between the high and low positions of the placement rod 136, thereby increasing the cleaning frequency of the cleaning rod 137 on the placement rod 136.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A heat resistance testing device for metallized thin film production, comprising an aging test chamber body (1), characterized in that: The aging test chamber body (1) is connected to a sealed door (2) via a hinge. A temperature detector and a photoacoustic spectroscopy detector are installed on the outer wall of the aging test chamber body (1), and both the temperature detector and the photoacoustic spectroscopy detector are electrically connected to the controller of the aging test chamber body (1). An air outlet on the inner side of the aging test chamber body (1) is connected to a vent plate (3) via a corrugated pipe. Connecting blocks (4) are connected to both sides of the vent plate (3). The connecting blocks (4) are threadedly connected to a first reciprocating screw (9). The first reciprocating screw (9) is connected to... There is a transmission gear (8), a motor (5) is installed inside the main body (1) of the aging test chamber, a rotating rod (6) is connected to the output end of the motor (5), a mating gear (7) is sleeved on the rotating rod (6), a guide plate (10) is rotatably connected to the bottom of the ventilation plate (3), and the guide plate (10) is located below the ventilation port of the ventilation plate (3). Side gears (11) are connected to both ends of the guide plate (10), and a rack (12) is connected to the inner wall of the main body (1) of the aging test chamber, and the rack (12) meshes with the side gear (11). Placement component (13) is disposed inside the main body (1) of the aging test chamber.

2. The heat resistance testing device for metallized thin film production according to claim 1, characterized in that: The placement assembly (13) includes a placement frame (131) connected to the inner cavity of the aging test chamber body (1). The placement frame (131) is rotatably connected to a second reciprocating screw (132), and the second reciprocating screw (132) is connected to a rotating rod (6) via a transmission belt assembly. The second reciprocating screw (132) is threadedly connected to a reciprocating inclined block (133). The placement frame (131) is slidably connected to a sliding block (134). A one-way bearing is provided on the inner side of the sliding block (134), and one side of the one-way bearing is connected to a rotating roller (135), and the other side of the one-way bearing is connected to a placement rod (136). The rotating roller (135) is in contact with the reciprocating inclined block (133). The sliding block (134) is located on the side of the placement rod (136) and is connected to a cleaning rod (137), and the cleaning rod (137) is in contact with the placement rod (136).

3. The heat resistance testing device for metallized thin film production according to claim 1, characterized in that: The aging test chamber body (1) is connected to a rotating plate on the inner side, and the rotating plate is rotatably connected to the first reciprocating screw (9). The rotating plate is connected to a limiting plate, and the limiting plate is slidably connected to the connecting block (4).

4. The heat resistance testing device for metallized thin film production according to claim 1, characterized in that: The mating gear (7) is provided with a quarter-circumference tooth, and the tooth of the mating gear (7) meshes with the tooth of the transmission gear (8).

5. The heat resistance testing device for metallized thin film production according to claim 1, characterized in that: The aging test chamber body (1) has a filter screen above the air inlet on the bottom inner side, and the filter screen has a beveled shape at both ends.

6. The heat resistance testing device for metallized thin film production according to claim 2, characterized in that: The cleaning rod (137) has beveled sides, and the beveled sides are attached to the outside of the placement rod (136).

7. The heat resistance testing device for metallized thin film production according to claim 2, characterized in that: The inner side of the placement frame (131) is connected to one end of a spring, and the other end of the spring is connected to the sliding block (134). The inner side of the placement frame (131) is also connected to a telescopic rod, and the telescopic end of the telescopic rod is connected to the sliding block (134).

8. The heat resistance testing device for metallized thin film production according to claim 7, characterized in that: The inner wall of the placement frame (131) is provided with a sliding protrusion, and the sliding protrusion is slidably connected to the reciprocating inclined block (133).

9. The heat resistance testing device for metallized thin film production according to claim 2, characterized in that: There are a total of twenty-eight sets of the placement rods (136), and each pair of the twenty-eight sets of placement rods (136) is a pair of two sets. The one-way bearings of a pair of placement rods (136) can rotate in opposite directions.

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