A film material modulus testing device

Abstract

The utility model provides a kind of film material modulus testing device, it is related to film modulus testing technical field, including test table, the both ends of test table are welded with fixed frame, the top of test table is provided with fixed test subassembly, the fixed test subassembly includes the fixed base plate of installation in the inboard top end of fixed frame, the both sides of fixed frame are equipped with fixed electric control screw rod, fixed top frame is arranged between the fixed electric control screw rod, the top of test table is provided with connecting frame;By setting fixed test subassembly, by the drive of fixed electric control screw rod, so that fixed top frame can drive fixed clamping plate to lift, and then realize the clamping and release of test film, in clamping process, the fixed clamping plate of trapezoidal groove and fixed base plate can better clamping test film, while the fixed clamping plate and fixed base plate of rubber material can also provide certain buffer for test film in clamping process, prevent damage test film due to clamping force too large.

Description

Technical Field

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

[0002] In acoustics, diaphragm materials play a crucial role. The modulus of the diaphragm material directly affects the product's FO test data and acoustic distortion. To ensure the quality of the diaphragm material, a modulus test is usually performed during the production of the diaphragm material to ensure its performance.

[0003] A search revealed that the document with publication number "CN220120550U" states, "This utility model provides a film toughness testing device, belonging to the field of film testing technology. This film toughness testing device includes a clamping mechanism and a pressing mechanism. The pressing mechanism includes a mounting frame, with a pressure plate slidably mounted inside the mounting frame. A first rotating shaft and a second rotating shaft are rotatably connected to both sides of the pressure plate. One end of the first rotating shaft is threadedly connected to a first slider, and the other end of the first slider is slidably connected to the second rotating shaft. The end of the second rotating shaft away from the first slider is threadedly connected to a second slider, and the other end of the second slider is slidably connected to the end of the first rotating shaft away from the first slider. A pair of first mounting seats are slidably mounted on one side of the bottom of the pressure plate, and a pair of second mounting seats are slidably mounted on the other side of the bottom of the pressure plate. The bottom end of the first slider is fixedly connected to the top end of the first mounting seats." In use, when the first and second rotating shafts rotate separately, they can move the first and second mounting seats separately, thereby adjusting the left and right positions of the pressure roller at the bottom of the pressure plate and pressing different parts of the film. This facilitates the user in testing the toughness of the film at different locations and obtaining accurate test data.

[0004] However, existing devices use a single clamp to hold the film, which cannot provide a stable grip and is prone to slippage during testing, affecting the test structure. In addition, existing devices rely on manual observation of film deformation during testing, resulting in inaccurate test data that cannot meet the requirements for high-precision testing of film modulus.

[0005] Therefore, we provide a thin film material modulus testing device to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides a thin film material modulus testing device, which aims to solve the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A thin film material modulus testing device includes a testing platform with fixed frames welded to both ends. A fixed testing assembly is disposed above the testing platform. The fixed testing assembly includes a fixed base plate installed on the top inner side of the fixed frames. Fixed electrically controlled lead screws are installed on both sides of the fixed frames, and a fixed top frame is disposed between the fixed electrically controlled lead screws. A connecting frame is disposed above the testing platform, and hydraulic telescopic rods are installed on both sides of the top of the connecting frame. A support block is welded to the top of the hydraulic telescopic rod, and a test pressure rod is disposed on the inner side of the support block.

[0009] As a further description of the above technical solution:

[0010] The surface of the fixed base plate is uniformly provided with trapezoidal grooves, and the surface of the fixed base plate is made of rubber.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the fixed top frame is fixedly connected to a fixed clamping plate. The bottom surface of the fixed clamping plate is provided with a trapezoidal groove corresponding to the fixed base plate. The fixed clamping plate is made of rubber. The fixed top frame forms a lifting and clamping structure with the fixed base plate through a fixed electric control screw.

[0013] As a further description of the above technical solution:

[0014] A test film is placed on top of the fixed base plate. The test film is cut to be 15cm wide and 100cm long.

[0015] As a further description of the above technical solution:

[0016] The test bench is equipped with adjusting screws at both ends. The connecting frame and the adjusting screws are connected by threads. The connecting frame and the test bench form a horizontal moving structure through the adjusting screws.

[0017] As a further description of the above technical solution:

[0018] The two ends of the test pressure rod are fixedly connected to connecting ring frames, and a pressure sensor is installed at the top of the connecting ring frame. The pressure sensor is connected to the support block by screws, and the test pressure rod forms a pressing structure with the test diaphragm through a hydraulic telescopic rod.

[0019] As a further description of the above technical solution:

[0020] The surface of the test pressure bar is bonded with a smooth rubber layer, and a laser rangefinder is installed at the top center of the connecting frame. The laser rangefinder and the test pressure bar are on the same vertical axis.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] By setting up a fixed test assembly and driving it with a fixed electric control screw, the fixed top frame can drive the fixed clamping plate to rise and fall, thereby achieving the clamping and release of the test film. During the clamping process, the fixed clamping plate and fixed base plate of the trapezoidal groove can better clamp the test film. At the same time, the fixed clamping plate and fixed base plate made of rubber can also provide a certain buffer for the test film during the clamping process, preventing damage to the test film due to excessive clamping force.

[0023] By adjusting the rotation of the lead screw, the connecting frame can be driven to move horizontally on the test platform, thereby adjusting the position of the test pressure bar relative to the test film. This facilitates testing at different positions of the test film, improving the flexibility and applicability of the test. During the test, the pressure sensor can monitor and record the pressure value applied to the test film by the test pressure bar in real time. At the same time, the laser rangefinder can monitor the elongation deformation of the test film under pressure in real time and accurately feed the data back to the external control system, thereby more accurately evaluating the modulus performance of the film material. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the cooperation structure between the fixing frame and the fixing base plate of this utility model;

[0026] Figure 3 This is a schematic diagram of the fixing frame structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the fixing clamp structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the connecting frame structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the inner structure of the support block of this utility model.

[0030] The following are the labels in the diagram: 1. Test stand; 2. Fixing frame; 3. Fixing test components; 301. Fixing base plate; 302. Fixing electric control screw; 303. Fixing top frame; 304. Fixing clamping plate; 305. Test film; 306. Adjusting screw; 307. Connecting frame; 308. Hydraulic telescopic rod; 309. Support block; 310. Test pressure rod; 311. Connecting ring frame; 312. Pressure sensor; 313. Laser rangefinder. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 As shown, this utility model provides a technical solution: a film material modulus testing device, including a test platform 1, with fixed frames 2 welded to both ends of the test platform 1, a fixed testing assembly 3 arranged above the test platform 1, the fixed testing assembly 3 including a fixed base plate 301 installed on the inner top of the fixed frame 2, fixed electric control screws 302 installed on both sides of the fixed frame 2, a fixed top frame 303 arranged between the fixed electric control screws 302, a connecting frame 307 arranged above the test platform 1, hydraulic telescopic rods 308 installed on both sides of the top of the connecting frame 307, a support block 309 welded to the top of the hydraulic telescopic rod 308, and a test pressure rod 310 arranged on the inner side of the support block 309.

[0033] Furthermore, trapezoidal grooves are evenly formed on the surface of the fixed base plate 301, and the surface of the fixed base plate 301 is made of rubber. By setting the rubber material, the friction between the test film 305 and the fixed base plate 301 is increased, making it less likely for the test film 305 to slip during the test, thus ensuring the accuracy of the test.

[0034] Furthermore, a fixed clamping plate 304 is fixedly connected to the bottom end of the fixed top frame 303. The bottom surface of the fixed clamping plate 304 has a trapezoidal groove corresponding to the fixed base plate 301. The fixed clamping plate 304 is made of rubber. The fixed top frame 303 forms a lifting clamping structure with the fixed base plate 301 through the fixed electric control screw 302. Driven by the fixed electric control screw 302, the fixed top frame 303 can drive the fixed clamping plate 304 to lift and lower, thereby realizing the clamping and release of the test film 305. During the clamping process, the fixed clamping plate 304 with the trapezoidal groove and the fixed base plate 301 can better clamp the test film 305. At the same time, the rubber fixed clamping plate 304 and the fixed base plate 301 can also provide a certain buffer for the test film 305 during the clamping process to prevent the test film 305 from being damaged due to excessive clamping force.

[0035] Furthermore, a test film 305 is placed above the fixed base plate 301. The test film 305 is cut to be 15cm wide and 100cm long. By cutting the test film 305 to a specific size, the standardization and accuracy of the test can be ensured.

[0036] Furthermore, adjusting screws 306 are installed at both ends of the test bench 1. The connecting frame 307 is threadedly connected to the adjusting screws 306. The connecting frame 307 forms a horizontal moving structure with the test bench 1 through the adjusting screws 306. By rotating the adjusting screws 306, the connecting frame 307 can be driven to move horizontally on the test bench 1, thereby adjusting the position of the test pressure rod 310 relative to the test film 305. This facilitates testing at different positions of the test film 305, improves the flexibility and applicability of the test, and ensures the accuracy and reliability of the test.

[0037] Furthermore, the two ends of the test pressure rod 310 are fixedly connected to the connecting ring frame 311, and the top of the connecting ring frame 311 is equipped with a pressure sensor 312. The pressure sensor 312 is connected to the support block 309 by screws. The test pressure rod 310 forms a pressing structure with the test film 305 through the hydraulic telescopic rod 308. Through the extension and retraction of the hydraulic telescopic rod 308, the test pressure rod 310 can be driven to press down on the test film 305, thereby simulating the pressure situation of the film material in actual application. During the pressing process, the pressure sensor 312 can monitor and record the pressure value applied by the test pressure rod 310 to the test film 305 in real time, providing accurate data support for subsequent modulus calculation.

[0038] Furthermore, a smooth rubber layer is bonded to the surface of the test pressure bar 310, and a laser rangefinder 313 is installed at the top center of the connecting frame 307. The laser rangefinder 313 and the test pressure bar 310 are on the same vertical axis. The smooth rubber layer design on the surface of the test pressure bar 310 increases the contact friction between it and the test film 305, ensuring the stability of the pressure test and preventing unnecessary scratches or damage to the film material during the test. At the same time, the laser rangefinder 313 can monitor the elongation deformation of the test film 305 under pressure in real time and accurately feed the data back to the external control system, thereby more accurately evaluating the modulus performance of the film material.

[0039] Working principle: Install the device in the working position, cut the film to be tested to the specified size, and then place the test film 305 on the fixed base plate 301. Start the fixed electric control screw 302. Driven by the fixed electric control screw 302, the fixed top frame 303 drives the fixed clamping plate 304 to descend until the fixed clamping plate 304 and the fixed base plate 301 tightly clamp the test film 305, preventing it from slipping during the test and ensuring the accuracy of the test. Then, according to the test requirements, adjust the position of the connecting frame 307 by adjusting the screw 306, thereby adjusting the test pressure rod 310 relative to the test film. After the position of the membrane 305 is adjusted, the hydraulic telescopic rod 308 is activated. Through the telescopic movement of the hydraulic telescopic rod 308, the test pressure rod 310 is driven to press down on the test membrane 305. During the pressing process, the pressure sensor 312 monitors and records the pressure value applied by the test pressure rod 310 to the test membrane 305 in real time, while the laser rangefinder 313 monitors the elongation deformation of the test membrane 305 under pressure in real time and accurately feeds the data back to the external control system for calculation and analysis, thereby obtaining the modulus performance of the membrane material. This completes the use process of a membrane material modulus testing device.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thin film material modulus testing apparatus comprising a test stage (1) characterised in that: The test bench (1) is welded with a fixed frame (2) at both ends. A fixed test assembly (3) is provided above the test bench (1). The fixed test assembly (3) includes a fixed base plate (301) installed on the top of the inner side of the fixed frame (2). Fixed electric control screws (302) are installed on both sides of the fixed frame (2). A fixed top frame (303) is provided between the fixed electric control screws (302). A connecting frame (307) is provided above the test bench (1). Hydraulic telescopic rods (308) are installed on both sides of the top of the connecting frame (307). A support block (309) is welded to the top of the hydraulic telescopic rod (308). A test pressure rod (310) is provided on the inner side of the support block (309).

2. A thin film material modulus testing apparatus as defined in claim 1, wherein, The surface of the fixed base plate (301) is uniformly provided with trapezoidal grooves, and the surface of the fixed base plate (301) is made of rubber.

3. The apparatus of claim 1, wherein: The bottom end of the fixed top frame (303) is fixedly connected to a fixed clamping plate (304). The bottom surface of the fixed clamping plate (304) is provided with a trapezoidal groove corresponding to the fixed base plate (301). The fixed clamping plate (304) is made of rubber. The fixed top frame (303) and the fixed base plate (301) form a lifting and clamping structure through the fixed electric control screw (302).

4. The thin film material modulus testing device according to claim 1, characterized in that, A test film (305) is placed on top of the fixed base plate (301), and the test film (305) is cut to be 15cm wide and 100cm long.

5. The thin film material modulus testing device according to claim 1, characterized in that, The test bench (1) is equipped with adjusting screws (306) at both ends. The connecting frame (307) and the adjusting screws (306) are connected by threads. The connecting frame (307) and the test bench (1) form a horizontal moving structure through the adjusting screws (306).

6. The thin film material modulus testing device according to claim 1, characterized in that, The two ends of the test pressure rod (310) are fixedly connected to the connecting ring frame (311), and the top of the connecting ring frame (311) is equipped with a pressure sensor (312). The pressure sensor (312) is connected to the support block (309) by screws. The test pressure rod (310) forms a pressing structure with the test membrane (305) through the hydraulic telescopic rod (308).

7. The thin film material modulus testing device according to claim 1, characterized in that, The surface of the test pressure bar (310) is bonded with a smooth rubber layer, and a laser rangefinder (313) is installed at the top center of the connecting frame (307). The laser rangefinder (313) and the test pressure bar (310) are on the same vertical axis.

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