Tension device for testing composite membrane

Abstract

The utility model belongs to the technical field of composite membranes, and particularly relates to a tension device for testing a composite membrane, which comprises a supporting seat, a testing box is fixedly mounted at the top of the supporting seat, a winding rod is fixedly mounted on the inner wall of the testing box, and a U-shaped fixing frame is fixedly mounted on one side of the inner wall of the testing box. A first electric push rod is fixedly installed on the surface of the U-shaped fixing frame, and one end of the first electric push rod is fixedly connected with a first clamping plate. One end of a composite film is wound on a winding rod, a first electric push rod is started to drive a first clamping plate to move, the first clamping plate clamps and fixes the composite film wound on the winding rod, meanwhile, the other end of the composite film is wound on a tension rod, and a second electric push rod is started to drive a second clamping plate to move. The other end of the composite membrane on the tension bar is clamped and fixed, so that the tested composite membrane is in a straightened state, the composite membrane is prevented from easily falling off from a fixed position during tension test, and the tension test effect of the composite membrane is improved.

Description

Technical Field

[0001] This utility model belongs to the field of food processing technology, and specifically relates to a device for testing the tensile strength of composite films. Background Technology

[0002] Composite membranes are separation membranes consisting of a microporous membrane or ultrafiltration membrane as the supporting layer, covered by a dense, homogeneous membrane with a barrier layer only 0.1–0.25 μm thick. This significantly increases the permeability of substances. Composite membranes can be made from any possible combination of materials, such as ceramic membranes coated on metal oxides or aromatic polyamide films coated on polysulfone microporous membranes. Both flat sheet and spiral wound membranes require nonwoven reinforcement to support the pressure resistance of the microporous membrane, unlike hollow fiber membranes. They can meet the needs of civil engineering projects such as water conservancy, municipal engineering, construction, transportation, subways, tunnels, and other engineering construction for seepage prevention, isolation, reinforcement, and crack prevention. Because they use high-molecular materials and anti-aging agents are added during the manufacturing process, they can be used in unconventional temperature environments. Commonly used for seepage prevention in dams and drainage ditches, as well as pollution prevention in waste disposal sites, composite membranes require tensile testing during production to ensure their quality. However, current tensile testing methods for composite membranes are problematic because the membrane material is highly flexible, causing it to easily detach from its fixed position and affecting the test results. Therefore, a tensile testing device for composite membranes is needed. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a tensile testing device for composite films, which solves the problem that when conducting tensile tests on composite films, the composite film is prone to detaching from the fixed position during the tensile test due to the high flexibility of the composite film material, thus affecting the tensile test results.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tensile testing device for composite films, comprising a support base, a test box fixedly mounted on the top of the support base, a winding rod fixedly mounted on the inner wall of the test box, a U-shaped fixing frame fixedly mounted on one side of the inner wall of the test box, a first electric push rod fixedly mounted on the surface of the U-shaped fixing frame, a first clamping plate fixedly connected to one end of the first electric push rod, a support block provided on the lower surface of the inner wall of the test box, an electric hydraulic push rod fixedly mounted on the surface of the support block, a protective shell fixedly connected to one end of the electric hydraulic push rod, a tension rod fixedly mounted on the inner wall of the protective shell, a second electric push rod fixedly mounted on the surface of the protective shell, a second clamping plate fixedly connected to one end of the second electric push rod, a tension sensor provided on the surface of the electric hydraulic push rod, and a controller fixedly mounted on one side of the test box.

[0005] Preferably, the upper surface of the test box is hinged to a cover plate, and a handle is fixedly installed on one side of the cover plate.

[0006] Preferably, the first clamping plate is semi-circular and located inside the U-shaped fixing frame.

[0007] Preferably, the tension sensor is electrically connected to the controller.

[0008] Preferably, the surface of the electro-hydraulic push rod is provided with an auxiliary rod, and one end of the auxiliary rod is connected to the test box.

[0009] Preferably, a support leg is fixedly installed at the bottom of the support base, and the surface of the support leg is provided with an installation groove.

[0010] Preferably, a viewing window is fixedly installed on the front of the test box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] One end of the composite film is wound onto the winding rod. The first electric push rod is activated, driving the first clamping plate to move. The first clamping plate clamps and fixes the composite film wound on the winding rod. At the same time, the other end of the composite film is wound onto the tension rod. The second electric push rod is activated, driving the second clamping plate to move and clamp and fix the other end of the composite film on the tension rod. This makes the composite film being tested taut, preventing it from easily falling off the fixed position during the tensile test and improving the tensile test effect of the composite film. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional sectional view of the test box of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the protective shell of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the U-shaped fixing frame of this utility model.

[0018] In the diagram: 1. Support base; 2. Test box; 3. Cover plate; 4. Handle; 5. Winding rod; 6. U-shaped fixing frame; 7. First small electric push rod; 8. First clamping plate; 9. Support block; 10. Electro-hydraulic push rod; 11. Protective shell; 12. Pull rod; 13. Second electric push rod; 14. Second clamping plate; 15. Tension sensor; 16. Controller; 17. Auxiliary rod; 18. Support leg; 19. Viewing window. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides the following technical solution: a tensile testing device for composite films, including a support base 1, a test box 2 fixedly installed on the top of the support base 1, a winding rod 5 fixedly installed on the inner wall of the test box 2, a U-shaped fixing frame 6 fixedly installed on one side of the inner wall of the test box 2, a first electric push rod 7 fixedly installed on the surface of the U-shaped fixing frame 6, a first clamping plate 8 fixedly connected to one end of the first electric push rod 7, a support block 9 provided on the lower surface of the inner wall of the test box 2, an electric hydraulic push rod 10 fixedly installed on the surface of the support block 9, a protective shell 11 fixedly connected to one end of the electric hydraulic push rod 10, a tension rod 12 fixedly installed on the inner wall of the protective shell 11, a second electric push rod 13 fixedly installed on the surface of the protective shell 11, a second clamping plate 14 fixedly connected to one end of the second electric push rod 13, a tension sensor 15 provided on the surface of the electric hydraulic push rod 10, and a controller 16 fixedly installed on one side of the test box 2.

[0021] The operator can move the cover plate 3 using handle 4 to open or close the test box 2, facilitating the handling and testing of the composite film. The operator wraps one end of the composite film to be tested around the winding rod 5. The first electric push rod 7 activates, moving the first clamping plate 8 to clamp and secure the composite film wrapped around the winding rod 5. Simultaneously, the operator wraps the other end of the composite film around the tension rod 12. The second electric push rod 13 activates, moving the second clamping plate 14 to clamp and secure the other end of the composite film wrapped around the tension rod 12, ensuring the composite film is taut and preventing it from easily detaching from its fixed position during tensile testing. This improves the tensile testing effect of the composite film. After the membrane is fixed, the electric hydraulic push rod 10 is activated to drive the protective shell 11 to retract. During the retraction process, the protective shell 11 can pull the other end of the clamped composite membrane, causing the straightened composite membrane to be continuously pulled, thereby conducting a tensile test on the composite membrane. The tensile sensor 15 can transmit the detected tensile force value to the controller 16 and display it on the display screen on the surface of the controller 16, thereby determining whether the tensile force value of the composite membrane is qualified. The operator can fix the support leg 18 to the ground through the mounting slot, thereby installing and fixing the device. The operator can observe the test chamber 2 through the viewing window 19 to observe the process of the composite membrane tensile test. All electrical equipment in this device is powered by an external power supply.

[0022] In one aspect of this embodiment, the semi-circular first clamping plate 8 located within the U-shaped fixing frame 6 can clamp and fix the composite film wound on the surface of the winding rod 5, preventing the composite film from detaching during subsequent tensile testing.

[0023] In one aspect of this embodiment, the operator can move the cover plate 3 using the handle 4 to open or close the test box 2, making it convenient for the operator to take out and test the composite membrane.

[0024] In one aspect of this embodiment, the auxiliary rod 17 connected to the test box 2 can enhance the stability and strength of the electro-hydraulic push rod 10 during use.

[0025] In one aspect of this embodiment, when the electro-hydraulic push rod 10 pulls the fixed composite film, the tension sensor 15 can transmit the detected tension value to the controller 16 and display it on the display screen on the surface of the controller 16, thereby determining whether the tension value of the composite film is qualified.

[0026] In one aspect of this embodiment, staff can observe the inside of the test chamber 2 through the viewing window 19 to observe the process of the composite film tensile test.

[0027] In one aspect of this embodiment, the worker can fix the support leg 18 to the ground through the mounting slot, thereby installing and fixing the device.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tensile testing device for composite membranes, comprising a support base (1), characterized in that: A test box (2) is fixedly installed on the top of the support base (1). A winding rod (5) is fixedly installed on the inner wall of the test box (2). A U-shaped fixing frame (6) is fixedly installed on one side of the inner wall of the test box (2). A first electric push rod (7) is fixedly installed on the surface of the U-shaped fixing frame (6). A first clamping plate (8) is fixedly connected to one end of the first electric push rod (7). A support block (9) is provided on the lower surface of the inner wall of the test box (2). An electric hydraulic push rod (10) is fixedly installed on the surface of the support block (9). A protective shell (11) is fixedly connected to one end of the electric hydraulic push rod (10). A tension rod (12) is fixedly installed on the inner wall of the protective shell (11). A second electric push rod (13) is fixedly installed on the surface of the protective shell (11). A second clamping plate (14) is fixedly connected to one end of the second electric push rod (13). A tension sensor (15) is provided on the surface of the electric hydraulic push rod (10). A controller (16) is fixedly installed on one side of the test box (2).

2. The tensile testing device for composite films according to claim 1, characterized in that: The test box (2) has a cover plate (3) hinged on its upper surface, and a handle (4) is fixedly installed on one side of the cover plate (3).

3. The tensile testing device for composite films according to claim 1, characterized in that: The first clamping plate (8) is semi-circular and is located inside the U-shaped fixing frame (6).

4. The tensile testing device for composite films according to claim 1, characterized in that: The tension sensor (15) is electrically connected to the controller (16).

5. The tensile testing device for composite films according to claim 1, characterized in that: The surface of the electric hydraulic push rod (10) is provided with an auxiliary rod (17), and one end of the auxiliary rod (17) is connected to the test box (2).

6. The tensile testing device for composite films according to claim 1, characterized in that: The bottom of the support base (1) is fixedly installed with a support leg (18), and the surface of the support leg (18) is provided with an installation groove.

7. The tensile testing device for composite films according to claim 1, characterized in that: The test box (2) has a viewing window (19) fixedly installed on the front.

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