A multi-layer co-extruded film performance testing device
Patent Information
- Application Number
- CN202522010154.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-09-18
AI Technical Summary
[0003]现有多层共挤薄膜性能测试装置多采用单向拉伸结构设计，仅能对薄膜沿单一方向施加拉力以获取性能数据
[0012]与现有技术相比，本实用新型的有益效果是：该多层共挤薄膜性能测试装置，通过第一夹持组件对多层共挤薄膜进行固定，通过调节组件使得框架相互移动，使得活动柱进行移动，使得连接板通过定位柱进行转动，调整连接板的角度，随后通过第二夹持组件对多层共挤薄膜进行固定，通过第一移动组件使得第一拉力传感器、第一夹持组件一起向左右两侧移动，通过第二移动组件使得第二拉力传感器、第二夹持组件一起向前后两侧沿一定水平角度移动，第一拉力传感器和第二拉力传感器的数值变化均在主控器中显示出来，记录多层结构在多向应力下断裂时的数据，可模拟多层共挤薄膜在实际应用中承受的多方向复合应力，解决了背景技术中单向拉伸测试与真实使用环境脱节的问题，测试结果能更精准反映薄膜在复杂受力下的力学特性与失效风险，可获取薄膜在多维度受力下的性能数据，数据覆盖更全面，为下游行业产品设计、工艺优化提供更充分的可靠依据。
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Abstract
Description
Technical Field
[0001] This utility model relates to the field of performance testing technology for multilayer co-extruded films, and in particular to a performance testing device for multilayer co-extruded films. Background Technology
[0002] Multilayer co-extruded barrier films are a film forming technology that is generally produced using multilayer co-extrusion blow molding or casting processes. They have excellent barrier properties, mechanical properties, tensile forming properties, and heat-sealing properties. Moreover, no additional lamination is required during processing, and there are no issues related to printing inks, adhesives, or additive residues. Therefore, it is a relatively green, environmentally friendly, and cost-effective food packaging technology. During the production of multilayer co-extruded films, it is necessary to test their tensile properties.
[0003] Existing multilayer co-extruded film performance testing devices mostly adopt a uniaxial tensile structure design, which can only apply tensile force to the film in a single direction to obtain performance data. However, in actual applications, multilayer co-extruded films are often subjected to multiaxial composite stresses, and the uniaxial tensile test results deviate significantly from the actual performance of the film in use, making it difficult to comprehensively and accurately reflect its mechanical properties and failure risks under complex stress environments. Therefore, this invention provides a multilayer co-extruded film performance testing device. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a multilayer co-extruded film performance testing device to solve the aforementioned problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A multilayer co-extruded film performance testing device includes a worktable. A first moving component is mounted on the top of the worktable, and a first tension sensor is mounted on the top of the worktable via the first moving component. A first clamping component is mounted on the opposite surface of the first tension sensor. An adjusting component is mounted on the bottom of the worktable, and a frame is mounted on the bottom of the worktable via the adjusting component. A movable column is slidably connected inside the frame and is slidably connected to the worktable. A connecting plate is fixedly mounted on the top plate of the movable column, and a positioning column is fixedly mounted on the bottom of the connecting plate and is rotatably connected to the worktable. A second moving component is mounted on the top of the connecting plate, and a second tension sensor is mounted on the top of the connecting plate via the second moving component. A second clamping component is mounted on the opposite surface of the second tension sensor. A main controller is fixedly mounted on the top of the worktable.
[0006] Preferably, the first moving component includes a first cylinder fixedly installed inside a first fixed plate, and the output end of the first cylinder is fixedly connected to a first tension sensor.
[0007] Preferably, the first clamping assembly includes a first U-shaped frame disposed on the facing surface of the first tension sensor, a first electric push rod fixedly mounted on the top of the first U-shaped frame, and a first pressure plate fixedly mounted on the output end of the first electric push rod.
[0008] Preferably, the adjustment assembly includes a mounting plate disposed at the bottom of the workbench, a drive motor is fixedly mounted on the right side of the mounting plate, a screw is fixedly mounted on the output end of the drive motor, a movable plate is threadedly connected to the surface of the screw, the movable plate is fixedly connected to the frame, a guide rod is slidably connected inside the movable plate, and the guide rod is fixedly connected to the mounting plate.
[0009] Preferably, the second moving component includes a second fixing plate disposed on the top of the connecting plate, a second cylinder is fixedly installed inside the second fixing plate, and the output end of the second cylinder is fixedly connected to a second tension sensor.
[0010] Preferably, the second clamping assembly includes a second U-shaped frame disposed on the opposite surface of the second tension sensor, a second electric push rod fixedly mounted on the top of the second U-shaped frame, and a second pressure plate fixedly mounted on the output end of the second electric push rod.
[0011] Preferably, the screw is a bidirectional threaded rod, which has both positive and negative threads.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This multilayer co-extruded film performance testing device fixes the multilayer co-extruded film through a first clamping assembly, moves the frame relative to each other through an adjusting assembly, moves the movable column, and rotates the connecting plate through the positioning column to adjust the angle of the connecting plate. Then, the multilayer co-extruded film is fixed through a second clamping assembly. The first moving assembly moves the first tension sensor and the first clamping assembly together to the left and right sides, and the second moving assembly moves the second tension sensor and the second clamping assembly together to the front and back sides at a certain horizontal angle. The numerical changes of the first and second tension sensors are displayed in the main controller, recording the data when the multilayer structure breaks under multi-directional stress. It can simulate the multi-directional composite stress that the multilayer co-extruded film bears in actual applications, solving the problem of the disconnect between unidirectional tensile testing and the actual use environment in the prior art. The test results can more accurately reflect the mechanical properties and failure risk of the film under complex stress, and can obtain the performance data of the film under multi-dimensional stress. The data coverage is more comprehensive, providing more sufficient and reliable basis for downstream industry product design and process optimization. Attached Figure Description
[0013] Figure 1 This is a three-dimensional perspective view of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a partial structural diagram of the present invention.
[0014] In the diagram: 1. Workbench; 2. First fixed plate; 3. First cylinder; 4. First tension sensor; 5. First U-shaped frame; 6. First electric push rod; 7. First pressure plate; 8. Mounting plate; 9. Drive motor; 10. Screw; 11. Moving plate; 12. Guide rod; 13. Frame; 14. Movable column; 15. Connecting plate; 16. Positioning column; 17. Second fixed plate; 18. Second cylinder; 19. Second tension sensor; 20. Second U-shaped frame; 21. Second electric push rod; 22. Second pressure plate; 23. Main controller. Detailed Implementation
[0015] 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.
[0016] Example: Refer to Figure 1-4A multilayer co-extruded film performance testing device includes a worktable 1. A first moving component is disposed on the top of the worktable 1, and a first tension sensor 4 is disposed on the top of the worktable 1 via the first moving component. A first clamping component is disposed on the opposite side of the first tension sensor 4. The first moving component includes a first fixed plate 2, and a first cylinder 3 is fixedly installed inside the first fixed plate 2. The output end of the first cylinder 3 is fixedly connected to the first tension sensor 4. The first moving component facilitates the provision of driving force for the left and right movement of the first tension sensor 4. An adjusting component is disposed at the bottom of the worktable 1, and a frame 13 is disposed at the bottom of the worktable 1 via the adjusting component. A movable column 14 is slidably connected inside the frame 13, and the movable column 14 is slidably connected to the worktable 1. Next, a connecting plate 15 is fixedly installed on the top plate of the movable column 14, and a positioning column 16 is fixedly installed on the bottom of the connecting plate 15. The positioning column 16 is rotatably connected to the worktable 1. The adjustment component includes a mounting plate 8 set at the bottom of the worktable 1. A drive motor 9 is fixedly installed on the right side of the mounting plate 8. A screw 10 is fixedly installed at the output end of the drive motor 9. The screw 10 is a bidirectional threaded rod, which has both positive and negative threads. A moving plate 11 is threadedly connected to the surface of the screw 10. The moving plate 11 is fixedly connected to the frame 13. A guide rod 12 is slidably connected inside the moving plate 11. The guide rod 12 is fixedly connected to the mounting plate 8. By setting up the adjustment component, it is easy to adjust the distance between the frames 13, thereby facilitating the adjustment of the angle of the connecting plate 15. A second moving component is provided on the top of the connecting plate 15. A second tension sensor 19 is mounted on the top of the connecting plate 15 via the second moving component. The second moving component includes a second fixed plate 17 mounted on the top of the connecting plate 15. A second cylinder 18 is fixedly installed inside the second fixed plate 17. The output end of the second cylinder 18 is fixedly connected to the second tension sensor 19. The second moving component facilitates the provision of driving force for the movement of the second tension sensor 19. A second clamping component is provided on the facing surface of the second tension sensor 19. A main controller 23 is fixedly mounted on the top of the worktable 1. This multilayer co-extruded film performance testing device fixes the multilayer co-extruded film through the first clamping component. By adjusting the component, the frame 13 moves relative to each other, causing the movable column 1 to move. 4. The connecting plate 15 is moved, causing it to rotate via the positioning post 16, adjusting its angle. Then, the multilayer co-extruded film is fixed by the second clamping assembly. The first moving assembly moves the first tension sensor 4 and the first clamping assembly together to the left and right sides. The second moving assembly moves the second tension sensor 19 and the second clamping assembly together to the front and back sides at a certain horizontal angle. The numerical changes of the first tension sensor 4 and the second tension sensor 19 are displayed on the main controller 23, recording data on the fracture of the multilayer structure under multi-directional stress. This simulates the multi-directional composite stress that the multilayer co-extruded film experiences in practical applications, solving the problem of the disconnect between unidirectional tensile testing and real-world usage in the prior art.The test results can more accurately reflect the mechanical properties and failure risks of thin films under complex stress, and can obtain performance data of thin films under multi-dimensional stress, with more comprehensive data coverage, providing more sufficient and reliable basis for downstream industry product design and process optimization.
[0017] Specifically, the first clamping assembly includes a first U-shaped frame 5 disposed on the facing surface of the first tension sensor 4. A first electric push rod 6 is fixedly installed on the top of the first U-shaped frame 5, and a first pressure plate 7 is fixedly installed on the output end of the first electric push rod 6. The first clamping assembly facilitates clamping and fixing the multilayer co-extruded film from both sides. A protective pad is provided below the first pressure plate 7 and at the bottom of the inner wall of the first U-shaped frame 5 to prevent damage to the multilayer co-extruded film. The second clamping assembly includes a second U-shaped frame 20 disposed on the facing surface of the second tension sensor 19. A second electric push rod 21 is fixedly installed on the top of the second U-shaped frame 20, and a second pressure plate 22 is fixedly installed on the output end of the second electric push rod 21. The second clamping assembly facilitates clamping and fixing the multilayer co-extruded film from both the front and rear sides. A protective pad is provided below the second pressure plate 22 and at the bottom of the inner wall of the second U-shaped frame 20 to prevent damage to the multilayer co-extruded film.
[0018] All electrical components mentioned in this article are connected to 220V AC mains power, and the main controller 23 can be a conventional known device such as a computer for control, and the operation of the electrical components mentioned in the article can be controlled by the main controller 23.
[0019] In use: The multilayer co-extruded film is placed in the first U-shaped frame 5. Then, the first electric push rod 6 moves the first pressure plate 7 downward, pressing the multilayer co-extruded film. The drive motor 9 rotates the screw 10, causing the moving plate 11 to move relative to each other along the guide rod 12, causing the frame 13 to move relative to each other, causing the movable column 14 to move, and causing the connecting plate 15 to rotate via the positioning column 16 to adjust the angle of the connecting plate 15. Then, the second electric push rod 21 moves the second pressure plate 22 downward, pressing the multilayer co-extruded film. The first cylinder 3 moves the first tension sensor 4 and the first U-shaped frame 5 together to the left and right sides, stretching the multilayer co-extruded film from the left and right sides. The second cylinder 18 moves the second tension sensor 19 and the second U-shaped frame 20 together to the front and back sides, stretching the multilayer co-extruded film from the front and back sides. The changes in the values of the first tension sensor 4 and the second tension sensor 19 are displayed in the main controller 23, recording the data when the multilayer structure breaks under multi-directional stress.
[0020] 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 multilayer co-extruded film performance testing device, comprising a worktable (1), characterized in that, The workbench (1) is provided with a first moving component on its top. The workbench (1) is provided with a first tension sensor (4) on its top via the first moving component. The first tension sensor (4) is provided with a first clamping component on its opposite side. The workbench (1) is provided with an adjusting component at its bottom. The workbench (1) is provided with a frame (13) at its bottom via the adjusting component. The frame (13) is slidably connected to a movable column (14). The movable column (14) is slidably connected to the workbench (1). A connecting plate (15) is fixedly installed on the top plate of the movable column (14). A positioning column (16) is fixedly installed on the bottom of the connecting plate (15). The positioning column (16) is rotatably connected to the workbench (1). The connecting plate (15) is provided with a second moving component on its top. The connecting plate (15) is provided with a second tension sensor (19) on its top via the second moving component. The second tension sensor (19) is provided with a second clamping component on its opposite side. The workbench (1) is fixedly installed with a main controller (23) on its top.
2. The multilayer co-extruded film performance testing device according to claim 1, characterized in that, The first moving component includes a first fixed plate (2) which is fixedly installed inside the first fixed plate (2), and the output end of the first cylinder (3) is fixedly connected to the first tension sensor (4).
3. The multilayer co-extruded film performance testing device according to claim 1, characterized in that, The first clamping assembly includes a first U-shaped frame (5) disposed on the opposite side of the first tension sensor (4), a first electric push rod (6) fixedly installed on the top of the first U-shaped frame (5), and a first pressure plate (7) fixedly installed at the output end of the first electric push rod (6).
4. The multilayer co-extruded film performance testing device according to claim 1, characterized in that, The adjustment assembly includes a mounting plate (8) disposed at the bottom of the workbench (1). A drive motor (9) is fixedly mounted on the right side of the mounting plate (8). A screw (10) is fixedly mounted on the output end of the drive motor (9). A movable plate (11) is threadedly connected to the surface of the screw (10). The movable plate (11) is fixedly connected to the frame (13). A guide rod (12) is slidably connected inside the movable plate (11). The guide rod (12) is fixedly connected to the mounting plate (8).
5. The multilayer co-extruded film performance testing device according to claim 1, characterized in that, The second moving component includes a second fixing plate (17) disposed on the top of the connecting plate (15), and a second cylinder (18) is fixedly installed inside the second fixing plate (17). The output end of the second cylinder (18) is fixedly connected to the second tension sensor (19).
6. The multilayer co-extruded film performance testing device according to claim 1, characterized in that, The second clamping assembly includes a second U-shaped frame (20) disposed on the opposite side of the second tension sensor (19), a second electric push rod (21) is fixedly installed on the top of the second U-shaped frame (20), and a second pressure plate (22) is fixedly installed at the output end of the second electric push rod (21).
7. The multilayer co-extruded film performance testing device according to claim 4, characterized in that, The screw (10) is a bidirectional threaded rod, which has both positive and negative threads.