A film performance comprehensive testing device

Abstract

The utility model relates to a kind of film performance comprehensive test equipment, belong to film performance test technical field.The film performance comprehensive test equipment, test seat, the surface of the test seat is fixedly installed with controller;Stable test mechanism, for the stable test mechanism of multiple stable test of film performance is set in the top of test seat;Among them, the stable test mechanism includes first electric slide rail fixedly installed in the top of test seat, and the side of the first electric slide rail is provided with stabilizing component;Stabilizing component can provide antiskid coating in clamping process, effectively prevent film from slipping due to low friction, improve the stability and data accuracy of tensile test, especially suitable for surface smooth or functional coating film material.Impact component can exert directional impact force in stretching process, simulate impact load in actual use, help to evaluate the impact resistance of film and surface strength synchronously, improve the integrity and representativeness of test.

Description

Technical Field

[0001] This utility model relates to the field of thin film performance testing technology, and in particular to a comprehensive thin film performance testing device. Background Technology

[0002] Thin film materials, due to their thinness, high flexibility, and smooth surface, are widely used in functional components and structural layers of consumer electronics products. They serve as intermediate carriers or terminal cover films for functional modules used for bonding, fixing, shielding, insulation, buffering, heat dissipation, and dust prevention. Especially in the module packaging and structural integration of devices such as smartphones, tablets, laptops, smart wearable devices, and 5G communication terminals, accurate testing of thin film material performance is crucial for ensuring product stability and consistency.

[0003] Currently, when testing mechanical properties such as tensile strength and elongation at break of thin films, the sample is often clamped at both ends for loading. However, due to the thinness and weak shear resistance of the thin film, and the fact that the surface is often coated with a low-adhesion functional coating or special treatment layer, the traditional clamping method is prone to sample slippage or detachment during the test, causing test interruption, affecting test efficiency and increasing repeatability. Utility Model Content

[0004] Therefore, it is necessary to provide a comprehensive thin film performance testing device to address the problem that traditional clamping methods are prone to sample slippage or detachment during testing due to the thinness, weak shear strength, and the presence of low-adhesion functional coatings or special treatment layers on the surface of thin films, which can lead to test interruptions, reduced testing efficiency, and increased repeatability.

[0005] A comprehensive thin film performance testing device includes a test stand with a controller fixedly mounted on its surface; a stabilization testing mechanism for performing multiple stabilization tests on the thin film performance is disposed on the top of the test stand; wherein the stabilization testing mechanism includes a first electric slide rail fixedly mounted on the top of the test stand, a stabilization component is disposed on one side of the first electric slide rail, and an impact component is disposed on the outer side of the first electric slide rail.

[0006] The stabilizing component includes two mounting bases disposed on the surface of the test base. Both mounting bases are located on the same central axis. The top mounting base is fixedly connected to the output end of the first electric slide rail, and the bottom mounting base is fixedly connected to the surface of the test base.

[0007] Each of the two mounting bases has a first limiting block and a second limiting block slidably connected to one side. The first limiting block has a plurality of engaging blocks fixedly installed on the side near the second limiting block. A bidirectional screw is rotatably installed inside the mounting base, and one side of the first limiting block and the second limiting block are threadedly connected to the bidirectional screw.

[0008] The second limiting block has multiple engagement grooves on the side near the first limiting block, and the multiple engagement blocks are slidably connected to the multiple engagement grooves respectively.

[0009] The plurality of bite blocks are configured in a semi-circular shape, and the shape of the plurality of bite grooves is adapted to the plurality of bite blocks.

[0010] The surface of the biting block is fixedly equipped with multiple contact strips, all of which are arranged horizontally and are configured as semi-circular rings.

[0011] The impact assembly includes a second electric slide rail fixedly mounted on the top of the test seat. The second electric slide rail is located on one side of the first electric slide rail. A movable plate is fixedly mounted on the output end of the second electric slide rail. An impact rod is provided inside the movable plate. The end of the impact rod near the first electric slide rail is set in a semi-circular shape.

[0012] An installation frame is fixedly installed on the other side of the movable plate. An electric push rod is fixedly installed inside the installation frame. A pressure sensor is fixedly installed at the output end of the electric push rod, and the output end of the pressure sensor is fixedly connected to the other end of the impact rod.

[0013] Beneficial effects

[0014] 1. The stabilizing component provides anti-slip coverage during clamping, effectively preventing the film from slipping due to low friction, thus improving the stability and data accuracy of tensile testing, especially suitable for smooth or functionally coated films. The impact component applies directional impact force during stretching, simulating impact loads in actual use, which helps to simultaneously evaluate the film's impact resistance and surface strength, improving the completeness and representativeness of the test;

[0015] 2. By incorporating a second electrically operated slide rail, the impact rod can be precisely moved on the test platform, enabling targeted impact testing of different areas of the film and enhancing the flexibility and adaptability of the test. The semi-circular front end of the impact rod evenly distributes the impact force, preventing film tearing and making it suitable for testing the impact resistance of flexible or composite films. Its perpendicular orientation to the film ensures consistent impact direction, improving the representativeness and reliability of the test results. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the stability testing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first limiting block and the second limiting block of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first limiting block and the mounting block of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the mounting frame of this utility model.

[0022] Figure label:

[0023] 100 Test base; 200 Controller; 300 Stability testing mechanism; 310 First electric slide rail; 320 Stabilizing component; 321 Mounting base; 322 First limit block; 323 Second limit block; 324 Engaging groove; 325 Engaging block; 326 Contact strip; 327 Bidirectional screw; 330 Impact component; 331 Second electric slide rail; 332 Moving plate; 333 Mounting frame; 334 Electric push rod; 335 Impact rod; 336 Pressure sensor. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The following is combined Figures 1-5 This invention describes a comprehensive testing device for thin film performance.

[0026] In one embodiment, a comprehensive thin film performance testing device includes: a test stand 100, on which a controller 200 is fixedly mounted; and a stabilization testing mechanism 300, which is disposed on the top of the test stand 100 for performing multiple stabilization tests on the thin film performance. The stabilization testing mechanism 300 includes a first electric slide rail 310 fixedly mounted on the top of the test stand 100, a stabilization component 320 disposed on one side of the first electric slide rail 310, and an impact component 330 disposed on the outer side of the first electric slide rail 310.

[0027] In this embodiment, by setting the first electric slide rail 310, the stabilizing component 320 can be precisely slidably adjusted along a preset direction on the top of the test seat 100, thereby adapting to film samples of different lengths and specifications. The stabilizing component 320 can effectively clamp both ends of the film without adding extra complicated operation steps. During the clamping process, a wide-surface pressing or anti-slip covering structure is adopted to reduce the problems of falling off and slipping caused by the flatness of the film surface and low friction, thereby improving the stability and data reliability during the tensile test. It is especially suitable for materials that are difficult to clamp, such as surface-treated films and functional films. The impact component 330 is set on the outside of the first electric slide rail 310, and can apply a controllable impact force synchronously or intermittently during the stretching process, simulating the external force such as point pressure and impact that the film is subjected to during use, effectively evaluating its impact toughness and surface strength, and providing more comprehensive performance testing for multifunctional film materials. Thus, this equipment can realize multi-condition and synchronous performance testing of films, meeting the multi-angle evaluation needs of film material performance for consumer electronic functional devices in the research and development and quality verification stages.

[0028] It should be noted that existing thin film performance testing equipment typically includes basic testing units such as a test stand 100, a drive loading mechanism, a clamp assembly, a force sensor, and a displacement sensor. The clamp assembly is used to fix the two ends of the thin film sample, the drive loading mechanism applies tensile force to the sample through a structure such as an electric slider, lead screw, or cylinder, and the force sensor and displacement sensor record the force change and elongation change of the sample during the loading process, respectively, so as to calculate parameters such as tensile strength and elongation at break.

[0029] The stabilizing component 320 only serves to limit, buffer, and prevent slippage during the film clamping process. It does not participate in the tensile force application process during the test and does not interfere with the main loading mechanism. Therefore, it will not affect the normal operation of the test equipment or the acquisition of force data. The impact component 330 is independent of the main tensile channel. Its working mode is a controllable open intermittent impact. The action area is limited to the non-clamping area of ​​the free section of the film. It can be set to closed or standby state before the test to ensure that it will not interfere with the sample or the impact sensor data during the standard tensile test. The impact component 330 will only perform short-term contact impact at a preset frequency when impact resistance test or multi-condition test is required.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, the stabilizing component 320 includes two mounting bases 321 disposed on the surface of the test base 100. Both mounting bases 321 are located on the same central axis. The mounting base 321 located at the top is fixedly connected to the output end of the first electric slide rail 310, and the mounting base 321 located at the bottom is fixedly connected to the surface of the test base 100.

[0031] In this embodiment, during installation, the two ends of the film can be clamped and positioned correspondingly with the upper and lower mounting seats 321 respectively. The top mounting seat 321 is fixedly connected to the output end of the first electric slide rail 310, and can move precisely with the slide rail during the stretching process, so that the entire loading process is always kept on the symmetrical force path, improving the uniformity of the sample force and the stability of data measurement. The bottom mounting seat 321 is fixedly connected to the surface of the test seat 100, providing a stable resistance support surface, ensuring that the sample maintains good initial positioning under high-strength tension, and preventing the film from deviating from the test axis.

[0032] It should be noted that a force sensor is installed between the output end of the first electric slide rail 310 and the top mounting base 321 connected thereto, for real-time acquisition of force data during the stretching process. The force sensor can be a strain gauge type, piezoelectric type or resistive type structure, and is installed on the force path between the slide rail and the mounting base 321, and can directly measure the axial force change of the film during the stretching process.

[0033] Two mounting bases 321 are slidably connected to a first limiting block 322 and a second limiting block 323 on adjacent sides. Multiple engagement blocks 325 are fixedly installed on the side of the first limiting block 322 near the second limiting block 323. A bidirectional screw 327 is rotatably installed inside the mounting base 321, and one side of the first limiting block 322 and the second limiting block 323 are threadedly connected to the bidirectional screw 327.

[0034] In this embodiment, the clamping stroke between the first limiting block 322 and the second limiting block 323 can be finely adjusted by rotating the bidirectional screw 327, which can achieve precise adjustment of the film clamping thickness and adapt to film samples of different sizes. Multiple biting blocks 325 are fixedly installed on the side of the first limiting block 322 near the second limiting block 323. During the clamping process, the biting blocks 325 and the film contact surface form a dot matrix pressing structure, which can significantly improve the clamping friction and prevent the film from slipping due to deformation under force during the test. It is particularly suitable for functional film materials with high smoothness or surface treatment.

[0035] The second limiting block 323 has multiple engagement grooves 324 on the side near the first limiting block 322, and multiple engagement blocks 325 are slidably connected to the multiple engagement grooves 324 respectively.

[0036] In this embodiment, as the first limiting block 322 and the second limiting block 323 approach each other, multiple biting blocks 325 will be inserted into and slidably engaged in the corresponding biting grooves 324 in sequence, ultimately achieving a precise biting connection. The interlocking structure of the biting blocks 325 and the biting grooves 324 forms a mechanical locking effect, which greatly enhances the clamping stability and pull-out resistance. When axial tension is applied, it can effectively counteract the lateral force disturbance caused by film slippage or deformation, and prevent the clamping position from shifting slightly or loosening. It is especially suitable for functional film materials with smooth surface coating, thin thickness, and high ductility.

[0037] Multiple bite blocks 325 are set in a semi-circular shape, and the shape of multiple bite grooves 324 is adapted to the multiple bite blocks 325.

[0038] In this embodiment, the semi-circular interlocking block 325 has better fit and pressure-resistant buffering capacity compared with traditional planar or wedge-shaped interlocking structures. It can automatically adjust the contact angle during the tensile loading process to keep the interlocking surfaces in a close fit, significantly improving the film clamping stability. It is particularly suitable for performance testing of flexible materials or edge-damaged films.

[0039] Multiple contact strips 326 are fixedly installed on the surface of the biting block 325. The multiple contact strips 326 are arranged horizontally and are set in a semi-circular shape.

[0040] In this embodiment, the contact strip 326 is made of rubber. The rubber material has good flexibility and a high coefficient of friction, which can provide stable friction to prevent slippage when in contact with the film sample, and can also achieve flexible adhesion through elastic deformation. Multiple contact strips 326 are distributed laterally along the interlocking block 325, which can provide multi-point support during actual clamping, enhance the frictional adhesion with the film surface, and thus effectively prevent the sample from slipping longitudinally due to the low coefficient of friction when under load.

[0041] like Figure 2 and Figure 5 As shown, the impact assembly 330 includes a second electric slide rail 331 fixedly installed on the top of the test seat 100. The second electric slide rail 331 is located on one side of the first electric slide rail 310. A movable plate 332 is fixedly installed at the output end of the second electric slide rail 331. An impact rod 335 is provided inside the movable plate 332. The end of the impact rod 335 near the first electric slide rail 310 is set in a semi-circular shape.

[0042] In this embodiment, the impact rod 335 can be precisely moved in the longitudinal horizontal direction at the top of the test seat 100 via the second electric slide rail 331, enabling the movable plate 332 at the output end to have an adjustable position function. This allows the internally installed impact rod 335 to perform point impact tests on films in different areas, improving the flexibility and adaptability of the test operation. The end of the impact rod 335 near the first electric slide rail 310 is set in a semi-circular shape, which can form a uniformly diffused contact force field during the impact process, avoiding film tearing or local penetration caused by sharp edges and corners. It is particularly suitable for testing the impact resistance of flexible, composite or highly elastic films. The impact rod 335 is set at a perpendicular angle to the test film, which can ensure that the direction of the impact force is consistent with the normal of the film surface, making the test results more representative and comparable, and meeting the requirements of the actual use of film materials subjected to vertical impact.

[0043] A mounting frame 333 is fixedly installed on the other side of the movable plate 332. An electric push rod 334 is fixedly installed inside the mounting frame 333. A pressure sensor 336 is fixedly installed at the output end of the electric push rod 334, and the output end of the pressure sensor 336 is fixedly connected to the other end of the impact rod 335.

[0044] In this embodiment, the electric push rod 334 can control the axial movement of the impact rod 335, thereby precisely adjusting the propulsion speed, contact time, and impact force amplitude during the impact process. A pressure sensor 336 is set at the output end of the electric push rod 334 and fixedly connected to the other end of the impact rod 335, so that the actual contact force transmitted by the impact rod 335 to the thin film sample can be monitored and recorded in real time during the impact process, which significantly improves the data accuracy and repeatability of the impact test. The pressure sensor 336 can also be used for an abnormal protection mechanism. For example, when the impact force exceeds the set threshold, the control component can immediately stop the output of the electric push rod 334 to prevent the impact rod 335 from being overloaded, causing the sample to break or the equipment to be damaged.

[0045] It should be noted that the pressure sensor 336 is a key component in this device used to detect the actual contact force value during the impact process. It is installed between the output end of the electric push rod 334 and the tail end of the impact rod 335, located at the end of the entire impact force transmission path. The pressure sensor 336 can be a strain gauge type, piezoelectric type or resistance strain gauge sensor, which has the characteristics of high sensitivity and high response speed, and can monitor the magnitude of the impact force generated by the impact rod 335 at the moment of impact in real time.

[0046] Working Principle: When using this comprehensive film performance testing equipment, firstly, according to the size and type of the film to be tested, fix both ends of the film sample in the clamping areas corresponding to the two mounting seats 321. By rotating the bidirectional screw 327, the first limiting block 322 and the second limiting block 323 are driven to move towards each other, so that the biting block 325 is inserted into the corresponding biting groove 324, and multi-point flexible clamping is achieved through the contact strip 326, effectively preventing the sample from slipping or falling off during the subsequent tensile loading process. Subsequently, the first electric slide rail 310 is activated, driving the top mounting seat 321 to move slowly upward, realizing the axial tensile loading of the film. During this process, the components installed at the output end of the slide rail and the mounting seat 321 are connected. The force sensor between 21 can record the force data of the film in real time. At the same time, the second electric slide rail 331 located on one side of the test area is activated, which drives the moving plate 332 to move along the longitudinal horizontal axis, so that the impact rod 335 is aligned with the test area. Then the electric push rod 334 drives the impact rod 335 to impact the film in the vertical direction. The pressure sensor 336 records the actual impact force value in real time and transmits it to the controller 200 for analysis. During the test, synchronous tensile and impact tests can be performed as needed, or multi-area impact tests can be performed separately. Finally, the performance response data of the film material under different loads and impact conditions are formed, providing a complete basis for subsequent mechanical, toughness or failure analysis.

[0047] It should be noted that the first electric slide rail, the second electric slide rail, and the pressure sensor mentioned above are all devices with relatively mature existing technologies. The specific models can be selected according to actual needs. At the same time, the first electric slide rail, the second electric slide rail, and the pressure sensor can be powered by the built-in power supply or by AC power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A thin film performance integrated testing apparatus, characterized by, include: Test stand (100), on the surface of which a controller (200) is fixedly mounted; A stability testing mechanism (300) for performing multiple stability tests on the thin film performance is disposed on the top of the test stand (100); The stability testing mechanism (300) includes a first electric slide rail (310) fixedly installed on the top of the test seat (100), a stabilizing component (320) is provided on one side of the first electric slide rail (310), and an impact component (330) is provided on the outer side of the first electric slide rail (310). The stabilizing component (320) includes two mounting bases (321) disposed on the surface of the test base (100). The two mounting bases (321) are located on the same central axis. The mounting base (321) located at the top is fixedly connected to the output end of the first electric slide rail (310), and the mounting base (321) located at the bottom is fixedly connected to the surface of the test base (100). The two mounting bases (321) are slidably connected to a first limiting block (322) and a second limiting block (323) on adjacent sides. The first limiting block (322) is fixedly installed with a plurality of engagement blocks (325) on the side of the first limiting block (322) close to the second limiting block (323). A bidirectional screw (327) is rotatably installed inside the mounting base (321), and one side of the first limiting block (322) and the second limiting block (323) is threadedly connected to the bidirectional screw (327).

2. The thin film performance comprehensive test device according to claim 1, wherein, The second limiting block (323) has multiple engagement grooves (324) on the side near the first limiting block (322), and the multiple engagement blocks (325) are slidably connected to the multiple engagement grooves (324).

3. The thin film performance comprehensive test device according to claim 2, wherein, The plurality of bite blocks (325) are configured in a semi-circular shape, and the shape of the plurality of bite grooves (324) is adapted to the plurality of bite blocks (325).

4. The thin film performance comprehensive test device according to claim 2, wherein, The surface of the biting block (325) is fixedly equipped with a plurality of contact strips (326), all of which are arranged horizontally and are configured as semi-circular rings.

5. The thin film performance comprehensive test device according to claim 1, wherein, The impact assembly (330) includes a second electric slide rail (331) fixedly installed on the top of the test seat (100). The second electric slide rail (331) is located on one side of the first electric slide rail (310). A movable plate (332) is fixedly installed at the output end of the second electric slide rail (331). An impact rod (335) is provided inside the movable plate (332). The end of the impact rod (335) near the first electric slide rail (310) is set in a semi-circular shape.

6. The thin film performance comprehensive test device according to claim 5, wherein, An installation frame (333) is fixedly installed on the other side of the movable plate (332). An electric push rod (334) is fixedly installed inside the installation frame (333). A pressure sensor (336) is fixedly installed at the output end of the electric push rod (334), and the output end of the pressure sensor (336) is fixedly connected to the other end of the impact rod (335).

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