PE composite film puncture experiment device
By setting a fixing device in the PE composite film puncture test apparatus, and using a pressure plate and threaded structure to fix the edge of the film, the problem of uneven force is solved and the detection accuracy is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINJIANG YUELONG PLASTIC PROD CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-14
AI Technical Summary
In the PE composite film puncture test, the uneven force distribution caused by only fixing the four corners of the film reduced the detection accuracy.
A fixing device is used to simultaneously fix the entire edge of the PE composite film using a first pressure plate and a second pressure plate. The fixing effect is enhanced by using an external threaded cylinder and an auxiliary ring, and the film is prevented from twisting and breaking by using hard silicone material and a limiting structure.
This method achieves uniform stress distribution on PE composite films during puncture, thereby improving the accuracy of puncture resistance testing.
Smart Images
Figure CN224500201U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of puncture test devices, and in particular to a PE composite film puncture test device. Background Technology
[0002] The PE composite film puncture test device can simulate puncture situations that may be encountered in actual use environments. It uses high-precision sensors to monitor the force generated during the puncture process in real time, applies a certain force to the film sample, and measures the performance of the film material during the puncture process, thereby evaluating the puncture resistance of the PE composite film.
[0003] When using a PE composite film puncture test device to perform a puncture test on a PE composite film, the PE composite film needs to be placed on a hollow cylinder connected to a pressure sensor. The four corners of the film are then fixed to the hollow cylinder using bolts or other tools. The puncture needle is then directed to puncture the film. The pressure sensor continuously monitors the pressure of the puncture needle on the film until the puncture needle punctures the film. However, during the puncture process, since only the four corners of the film are fixed, uneven stress may occur on the film, which may reduce the detection accuracy of the PE composite film puncture test device. Utility Model Content
[0004] This invention addresses the problem that during the puncture of a PE composite film, when only the four corners of the film are fixed, uneven stress may occur, potentially reducing the detection accuracy of the PE composite film puncture test device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a PE composite film puncture test device, comprising a puncture test device body, a Y-axis moving frame installed on one side of the top of the puncture test device body, a moving block slidably disposed on one side of the Y-axis moving frame, a puncture needle installed at the bottom of the moving block, a pressure sensor disposed on one side of the Y-axis moving frame, the pressure sensor being installed on the top of the puncture test device body, a hollow cylinder disposed on the top of the pressure sensor, an auxiliary frame fixedly installed on the top of one side of the hollow cylinder, a fixing device disposed between the auxiliary frame and the hollow cylinder, the fixing device synchronously fixing the entire edge of the PE composite film by setting a first pressure plate and a second pressure plate.
[0006] The effect achieved by the above components is that by setting the first pressure plate and the second pressure plate to fix the entire edge of the PE composite film, the PE composite film can be subjected to more uniform force during the puncture process by the puncture needle, which helps to prevent the problem of reduced accuracy of puncture resistance testing of PE composite film.
[0007] Preferably, the fixing device includes an externally threaded cylinder, which is threadedly connected to the inner wall of the auxiliary frame. A first pressure plate is rotatably mounted on the bottom of the externally threaded cylinder, and a second pressure plate is fixedly mounted on the top of the hollow cylinder. The first pressure plate is connected to the externally threaded cylinder, the second pressure plate, and the inner wall of the hollow cylinder.
[0008] The effect achieved by the above components is as follows: by using the first pressure plate and the second pressure plate, the PE composite film is laid on the second pressure plate and fully unfolded. Then, by rotating the external threaded cylinder, the external threaded cylinder will move downward on the inner wall of the auxiliary frame. The external threaded cylinder will drive the first pressure plate to move towards the second pressure plate until the first pressure plate and the second pressure plate completely press the edge of the PE composite film, thus fixing the entire edge of the PE composite film.
[0009] Preferably, an auxiliary ring is fixedly installed on the top of the outer surface of the external threaded cylinder, and the outer surface of the auxiliary ring is provided with protrusions.
[0010] The effect achieved by the above components is as follows: by setting the auxiliary ring, rotating the auxiliary ring can drive the external threaded cylinder to rotate. At the same time, the outer surface of the auxiliary ring is provided with protrusions, which can effectively increase the friction of the outer surface of the auxiliary ring and have an anti-slip effect when rotating the auxiliary ring.
[0011] Preferably, a first extension block and a second extension block are symmetrically fixedly installed on both sides of the first pressure plate and the second pressure plate, respectively, and a round rod is fixedly installed on the top of the second extension block, the round rod being slidably installed on the inner wall of the first extension block.
[0012] The effect achieved by the above-mentioned components is as follows: by setting the round rod, the first pressure plate connected to the first extension block can be limited, so that when the external threaded cylinder is rotated, the first pressure plate will not rotate with the external threaded cylinder, but will move in a straight line in the vertical direction. This helps to prevent the first pressure plate from being driven to rotate by the external threaded cylinder, which would cause the PE composite film to twist when the first pressure plate comes into contact with the PE composite film.
[0013] Preferably, both the first pressure plate and the second pressure plate are made of rigid silicone.
[0014] The effect achieved by the above components is that by setting the first and second pressure plates made of hard silicone, when the first and second pressure plates squeeze the PE composite film, they can play a certain protective role for the PE composite film, which helps to prevent the PE composite film from cracking due to excessive squeezing.
[0015] Preferably, a slot plate is fixedly installed on one side of the first extension block, and a threaded pin is fixedly installed on one side of the second extension block. The threaded pin is inserted into the inner wall of the slot plate, and a nut is threaded onto the outer surface of the threaded pin.
[0016] The effect achieved by the above components is as follows: when the first pressure plate moves vertically, it will drive the threaded pin to move synchronously on the inner wall of the slot plate. Then, by rotating the nut, one side of the nut will abut against one side of the slot plate, which can provide auxiliary fixation between the first pressure plate and the second pressure plate. This helps to prevent the external threaded cylinder from loosening and causing the clamping of the PE composite film to loosen.
[0017] Preferably, a rubber plate is bonded to one side of the slot plate, and the nut is disposed on one side of the rubber plate.
[0018] The effect achieved by the above components is that by setting the rubber plate, the friction between the nut and the slot plate can be increased, making the nut less likely to loosen.
[0019] Preferably, a circular block is fixedly installed at one end of the threaded pin, and the outer diameter of the circular block is larger than the outer diameter of the threaded pin.
[0020] The effect achieved by the above components is that by setting up a round block, the round block can block one end of the threaded pin, which helps to prevent the nut from easily coming off the threaded pin.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting a first pressure plate and a second pressure plate to fix the entire edge of the PE composite film, the PE composite film can be subjected to more uniform force during the puncture process by the puncture needle, which helps to prevent the problem of reduced accuracy in the puncture resistance test of the PE composite film. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model;
[0024] Figure 2 This is a three-dimensional structural diagram of the fixing device of this utility model;
[0025] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;
[0026] Figure 4 This is a three-dimensional structural diagram of the external threaded cylinder of this utility model.
[0027] Legend: 1. Puncture test device body; 2. Y-axis moving frame; 3. Moving block; 4. Puncture needle; 5. Hollow cylinder; 6. Pressure sensor; 7. Auxiliary frame; 8. Fixing device; 81. External threaded cylinder; 82. First pressure plate; 83. Second pressure plate; 84. Auxiliary ring; 85. First extension block; 86. Second extension block; 87. Round rod; 88. Slot plate; 89. Threaded pin; 810. Nut; 811. Rubber plate; 812. Round block. Detailed Implementation
[0028] Example 1, referring to Figures 1-3 As shown, this embodiment discloses a PE composite film puncture test device (which may be HE-BLS-50N), including a puncture test device body 1. A Y-axis moving frame 2 is installed on one side of the top of the puncture test device body 1. A moving block 3 is slidably arranged on one side of the Y-axis moving frame 2. A puncture needle 4 is installed at the bottom of the moving block 3. A pressure sensor 6 (which may be MSP330X or MPXV7002) is arranged on one side of the Y-axis moving frame. The pressure sensor 6 is installed on the top of the puncture test device body 1. A hollow cylinder 5 is arranged on the top of the pressure sensor 6. An auxiliary frame 7 is fixedly installed on the top of one side of the hollow cylinder 5. A fixing device 8 is arranged between the auxiliary frame 7 and the hollow cylinder 5. The fixing device 8 is connected by... The first pressure plate 82 and the second pressure plate 83 are set to simultaneously fix the entire edge of the PE composite film. By setting the first pressure plate 82 and the second pressure plate 83 to fix the entire edge of the PE composite film, the force on the PE composite film can be more uniform during the puncture process of the puncture needle 4, which helps to prevent the problem of reduced accuracy of puncture resistance test of PE composite film. After the PE composite film is fixed on the top of the hollow cylinder 5, the puncture needle 4 is controlled to puncture the film by the Y-axis moving frame 2. The pressure sensor 6 will continuously detect the pressure of the puncture needle on the film until the puncture needle punctures the film. The pressure sensor 6 will transmit the final data to the display of the puncture test device to complete the test process.
[0029] Reference Figure 2 and Figure 3As shown, the fixing device 8 includes an externally threaded cylinder 81, which is threadedly connected to the inner wall of the auxiliary frame 7. A first pressure plate 82 is rotatably mounted on the bottom of the externally threaded cylinder 81, and a second pressure plate 83 is fixedly mounted on the top of the hollow cylinder 5. The first pressure plate 82 is connected to the externally threaded cylinder 81, the second pressure plate 83, and the inner wall of the hollow cylinder 5. A PE composite film is laid on the second pressure plate 83 through the first pressure plate 82 and the second pressure plate 83, and the PE composite film is fully unfolded. Then, by rotating the externally threaded cylinder 81, it moves downwards along the inner wall of the auxiliary frame 7. 1 will drive the first pressure plate 82 to move towards the second pressure plate 83 until the first pressure plate 82 and the second pressure plate 83 completely press the edge of the PE composite film, thus fixing the entire edge of the PE composite film; An auxiliary ring 84 is fixedly installed on the top of the outer surface of the external threaded cylinder 81. The outer surface of the auxiliary ring 84 is provided with protrusions. By setting the auxiliary ring 84, rotating the auxiliary ring 84 can drive the external threaded cylinder 81 to rotate. At the same time, the protrusions on the outer surface of the auxiliary ring 84 can effectively increase the friction of the outer surface of the auxiliary ring 84, which has an anti-slip effect when rotating the auxiliary ring 84.
[0030] Reference Figure 2 and Figure 3 As shown, a first extension block 85 and a second extension block 86 are symmetrically fixedly installed on both sides of the first pressure plate 82 and the second pressure plate 83, respectively. A round rod 87 is fixedly installed on the top of the second extension block 86. The round rod 87 is slidably installed on the inner wall of the first extension block 85. By setting the round rod 87, the first pressure plate 82 connected to the first extension block 85 can be limited, so that when the external threaded cylinder 81 is rotated, the first pressure plate 82 will not rotate with the external threaded cylinder 81, but will move linearly in the vertical direction. This helps to prevent the first pressure plate 82 from being driven to rotate by the external threaded cylinder 81, which would cause the PE composite film to twist when the first pressure plate 82 comes into contact with the PE composite film. The first pressure plate 82 and the second pressure plate 83 are both made of hard silicone. By setting the first pressure plate 82 and the second pressure plate 83 of hard silicone, when the first pressure plate 82 and the second pressure plate 83 squeeze the PE composite film, they can play a certain protective role for the PE composite film, which helps to prevent the PE composite film from cracking due to excessive squeezing.
[0031] Reference Figures 2-4As shown, a slot plate 88 is fixedly installed on one side of the first extension block 85, and a threaded pin 89 is fixedly installed on one side of the second extension block 86. The threaded pin 89 is inserted into the inner wall of the slot plate 88, and a nut 810 is threadedly connected to the outer surface of the threaded pin 89. When the first pressure plate 82 moves vertically, it will drive the threaded pin 89 to move synchronously on the inner wall of the slot plate 88. Then, the nut 810 is rotated so that one side of the nut 810 abuts against one side of the slot plate 88, which can provide auxiliary fixation between the first pressure plate 82 and the second pressure plate 83. This helps to prevent the external threaded cylinder 81 from loosening and causing the clamping of the PE composite film to loosen.
[0032] Reference Figures 2-4 As shown, a rubber plate 811 is bonded to one side of the slot plate 88, and a nut 810 is set on one side of the rubber plate 811. By setting the rubber plate 811, the friction between the nut 810 and the slot plate 88 can be increased, making it less likely for the nut 810 to loosen. A round block 812 is fixedly installed at one end of the threaded pin 89. The outer diameter of the round block 812 is larger than the outer diameter of the threaded pin 89. By setting the round block 812, the round block 812 can block one end of the threaded pin 89, which helps to prevent the nut 810 from easily disengaging from the threaded pin 89.
[0033] Working principle: The PE composite film is laid on the second pressure plate 83 and fully unfolded. Then, the auxiliary ring 84 is rotated to drive the external threaded cylinder 81 to rotate. The external threaded cylinder 81 will move downward on the inner wall of the auxiliary frame 7. Under the limit of the round rod 87, the external threaded cylinder 81 will drive the first pressure plate 82 to move towards the second pressure plate 83, which will drive the threaded pin 89 to move synchronously on the inner wall of the slot plate 88 until the first pressure plate 82 and the second pressure plate 83 completely press the edge of the PE composite film. Then, the nut 810 is rotated so that one side of the nut 810 abuts against the rubber plate 811 on one side of the slot plate 88, which can provide auxiliary fixation between the first pressure plate 82 and the second pressure plate 83. This helps to prevent the external threaded cylinder 81 from loosening and causing the clamping of the PE composite film to loosen, thus fixing the entire edge of the PE composite film.
Claims
1. A PE composite film puncture test device, comprising a puncture test device body (1), characterized in that: A Y-axis moving frame (2) is installed on one side of the top of the puncture test device body (1). A moving block (3) is slidably arranged on one side of the Y-axis moving frame (2). A puncture needle (4) is installed at the bottom of the moving block (3). A pressure sensor (6) is arranged on one side of the Y-axis moving frame. The pressure sensor (6) is installed on the top of the puncture test device body (1). A hollow cylinder (5) is arranged on the top of the pressure sensor (6). An auxiliary frame (7) is fixedly installed on the top of one side of the hollow cylinder (5). A fixing device (8) is arranged between the auxiliary frame (7) and the hollow cylinder (5). The fixing device (8) synchronously fixes the entire edge of the PE composite film by setting a first pressure plate (82) and a second pressure plate (83).
2. The PE composite film puncture test device according to claim 1, characterized in that: The fixing device (8) includes an external threaded cylinder (81), which is threadedly connected to the inner wall of the auxiliary frame (7). A first pressure plate (82) is rotatably installed at the bottom of the external threaded cylinder (81), and a second pressure plate (83) is fixedly installed at the top of the hollow cylinder (5). The first pressure plate (82) is connected to the external threaded cylinder (81), the second pressure plate (83), and the inner wall of the hollow cylinder (5).
3. The PE composite film puncture test device according to claim 2, characterized in that: An auxiliary ring (84) is fixedly installed on the top of the outer surface of the external threaded cylinder (81), and the outer surface of the auxiliary ring (84) is provided with protrusions.
4. The PE composite film puncture test device according to claim 2, characterized in that: The first pressure plate (82) and the second pressure plate (83) are respectively symmetrically fixedly installed with a first extension block (85) and a second extension block (86). A round rod (87) is fixedly installed on the top of the second extension block (86), and the round rod (87) is slidably installed on the inner wall of the first extension block (85).
5. The PE composite film puncture test device according to claim 2, characterized in that: The first pressure plate (82) and the second pressure plate (83) are both made of hard silicone. The first pressure plate (82) and the second pressure plate (83) are made of hard silicone.
6. The PE composite film puncture test device according to claim 4, characterized in that: A slot plate (88) is fixedly installed on one side of the first extension block (85), and a threaded pin (89) is fixedly installed on one side of the second extension block (86). The threaded pin (89) is inserted into the inner wall of the slot plate (88), and a nut (810) is threadedly connected to the outer surface of the threaded pin (89).
7. The PE composite film puncture test device according to claim 6, characterized in that: A rubber plate (811) is bonded to one side of the slot plate (88), and the nut (810) is disposed on one side of the rubber plate (811).
8. The PE composite film puncture test device according to claim 6, characterized in that: A round block (812) is fixedly installed at one end of the threaded pin (89), and the outer diameter of the round block (812) is larger than the outer diameter of the threaded pin (89).