Static shearing force testing device for adhesive tape

Abstract

The utility model provides an adhesive tape static shear force testing device which comprises a supporting part, a fixing part and a bearing part, the fixing part is fixed on the supporting part, the bearing part is arranged to be capable of hanging one or more heavy objects, and the fixing part and the bearing part can be bonded together through an adhesive tape to be tested. The adhesive tape static shear force testing device further comprises a displacement sensor, and the displacement sensor is configured to monitor the displacement of the bearing part relative to the fixing part. According to the static shearing force testing device for the adhesive tape, the real-time change of displacement is measured by utilizing the displacement sensor, the tearing and breaking time points of the adhesive tape under the action of the static shearing force are solved, and meanwhile, the real-time displacement distance of the adhesive tape in the whole static shearing force action process is recorded.

Description

Technical Field

[0001] This utility model relates to a testing device, specifically, a device for testing the static shear force of adhesive tape. Background Technology

[0002] Shear strength and adhesive properties are crucial properties of adhesive tapes. Static shear force testing is widely used in industrial adhesive tape products. The test principle involves fixing a test plate with the tape sample attached vertically to a static shear frame, suspending a specified weight at the lower end, and observing the displacement of the tape sample or recording the time it takes for the tape sample to completely detach from the test plate to assess the tape sample's pull-out resistance.

[0003] Traditional static shear test fixtures can meet the requirements for vertical testing, but they require continuous and periodic manual observation to confirm the test status, or can only record whether the tape is torn and the approximate time point of shear failure, but cannot measure the changes of the tape throughout the entire test process, especially the relative displacement of the tape under the action of static shear force at each time point.

[0004] Therefore, it is necessary to develop a tape static shear force testing device that can accurately measure and automatically record the exact time of tape static shear force failure, and can also measure the displacement distance of the tape at or before the static shear force failure. Utility Model Content

[0005] One of the purposes of this invention is to provide a tape static shear force testing device that can accurately measure and automatically record the exact time of tape static shear force failure, and can also measure the displacement distance of the tape at or before the static shear force failure.

[0006] According to one aspect of this utility model, a static shear force testing device for adhesive tape is provided, comprising a support portion, a fixing portion, and a load-bearing portion, wherein the fixing portion is fixed to the support portion, the load-bearing portion is configured to suspend one or more weights, and the fixing portion and the load-bearing portion can be bonded together by the adhesive tape to be tested. The static shear force testing device for adhesive tape also includes a displacement sensor configured to monitor the displacement of the load-bearing portion relative to the fixing portion.

[0007] This invention offers the following advantages: The tape static shear force testing device of this invention can accurately measure the precise time of tape failure under static shear force, and can also measure the displacement distance of the tape at the time of static shear force failure. This tape static shear force testing device utilizes a displacement sensor to measure real-time changes in displacement, perfectly solving the problem of determining the time point of tape tearing and breaking under static shear force, while simultaneously recording the real-time displacement distance of the tape throughout the entire static shear force process. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the following drawings are merely exemplary illustrations of some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Moreover, these drawings should not be construed as any limitation imposed on this utility model.

[0009] Figure 1 and Figure 2 This is a schematic diagram of the structure of a static shear force testing device for tape according to an embodiment of this utility model;

[0010] Figure 3 This is a schematic diagram of the test results of a static shear force testing device for tape according to an embodiment of this utility model. Detailed Implementation

[0011] It should be noted that the following embodiments are exemplary descriptions of the present invention, and features in different embodiments can be combined with each other without conflict. The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 and Figure 2 This is a schematic diagram of the structure of a static shear force testing device 100 for adhesive tape according to an embodiment of the present invention. As shown in the figure, the static shear force testing device 100 for adhesive tape includes a support part 10, a fixing part 20, and a load-bearing part 30. The fixing part 20 is fixed to the support part 10, and the load-bearing part 30 is configured to suspend one or more weights 50. The fixing part 20 and the load-bearing part 30 can be bonded together by the adhesive tape to be tested. The static shear force testing device 100 for adhesive tape also includes a displacement sensor 40, which is configured to monitor the displacement of the load-bearing part 30 relative to the fixing part 20.

[0013] The support portion 10 is simply represented by a block in the illustration. In a specific embodiment, the support portion 10 can be a support frame, for example, composed of elements such as a base and support rods. The support portion 10 mainly serves to support and fix other components such as the fixing portion 20 and the load-bearing portion 30 and suspend them at a certain height. It can be any structure that can be conceived by those skilled in the art.

[0014] In the illustrated embodiment, the fixing part 20 includes a vertical plate (hereinafter referred to as "first vertical plate"), which is fixed to the support part 10 by means of connectors such as screws and nuts. At least a portion of the front surface of the first vertical plate (facing the load-bearing part 30, i.e., facing the test operator) is suitable for attaching the test tape 60.

[0015] The load-bearing part 30 includes a vertical plate 31 (hereinafter referred to as "second vertical plate"). At least a portion of the back surface of the second vertical plate 31 of the load-bearing part 30 (facing the fixing part 20, i.e. away from the test operator) is suitable for attaching the test tape 60.

[0016] When using the tape static shear force testing device 100 of this utility model embodiment to perform a static shear force test on the tape 60 to be tested, the tape 60 to be tested is attached to the front surface of the first vertical plate, and then the back surface of the second vertical plate 31 is attached to the tape 60 to be tested. In this way, the load-bearing part 30 is bonded to the fixing part 20 through the tape 60 to be tested and suspended on the fixing part 20.

[0017] The lower end of the second vertical plate 31 of the load-bearing section 30 is provided with one or more holes, configured to suspend one or more weights 50. Typically, the weights 50 are weights. Alternatively, the lower end of the second vertical plate 31 is provided with one or more hooks (not shown), on which one or more weights 50 can be suspended. In this way, the weights 50 exert a downward tensile force on the second vertical plate 31, thereby creating a static shear force on the tape 60 to be tested. After a certain period of time, the second vertical plate 31 slowly shifts or even falls off.

[0018] The load-bearing part 30 also includes a horizontal plate 32, which may be fixedly connected to the second vertical plate 31 or integrally formed. The horizontal plate 32 is configured to face the sensing head 41 of the displacement sensor 40 so that the displacement sensor 40 can monitor the displacement of the second vertical plate 31 of the load-bearing part 30 relative to the fixed part 20 by monitoring the displacement of the horizontal plate 32.

[0019] Alternatively, the fixing part 20 and the load-bearing part 30 can be metal panels. Of course, the fixing part 20 and the load-bearing part 30 can also be made of other materials, such as resin or glass. In particular, the surface of the fixing part 20 and the load-bearing part 30 where the test tape 60 needs to be attached is selected according to the corresponding surface where the test tape 60 needs to be attached. For example, if it is necessary to test the shear resistance and adhesion performance of the test tape 60 to an aluminum plate, then the surface of the fixing part 20 and the load-bearing part 30 where the test tape 60 needs to be attached is selected as an aluminum plate; if it is necessary to test the shear resistance and adhesion performance of the test tape 60 to a glass or copper plate, then glass or copper plate is selected accordingly.

[0020] A displacement sensor 40 is fixed to the support 10 and includes a sensing head 41. As previously described, a horizontal plate 32 is positioned opposite the sensing head 41 of the displacement sensor 40 so that the displacement sensor 40 monitors the displacement of the horizontal plate 32. The displacement sensor 40 is electrically connected to a storage device (not shown) to record the position information and corresponding time measured by the displacement sensor 40. Preferably, the storage device is electrically connected to a display device (not shown) to display the position information and corresponding time measured by the displacement sensor 40.

[0021] Figure 3 This is a schematic diagram of the test results of a static shear force testing device for adhesive tape according to an embodiment of this utility model. As shown in the figure, the horizontal axis represents time, and the vertical axis represents the displacement of the horizontal plate 32, that is, the displacement of the second vertical plate 31 of the load-bearing part 30 relative to the first vertical plate of the fixed part 20. Between the start of the test (T1) and time T2, almost no displacement occurs. From time T2 onwards, displacement occurs; from time T3 to time T4, the displacement changes significantly; and by time T5, the second vertical plate 31 of the load-bearing part 30 is completely detached.

[0022] Therefore, the tape static shear force testing device of this invention can accurately measure the exact time of tape static shear force failure, and can also measure the displacement distance of the tape at the time of static shear force failure. This tape static shear force testing device utilizes a displacement sensor to measure the real-time change in displacement, accurately solving the problem of the time point when the tape tears and breaks under static shear force, while simultaneously recording the real-time displacement distance of the tape throughout the entire static shear force process. This tape static shear force testing device can automatically monitor and record the testing process in real time, eliminating the need for manual real-time monitoring, and the data is accurate and intuitive.

[0023] It is understood that the embodiments described above are for illustrative purposes only and not for limiting the present invention. Those skilled in the art will understand that modifications and variations can be made to the present invention as long as they do not depart from the spirit and scope of the present invention. The above modifications and variations are considered to be within the scope of the present invention and the appended claims. The scope of protection of the present invention is defined by the appended claims. Furthermore, any reference numerals in the claims should not be construed as limiting the present invention. The verb "comprising" and its variations do not exclude the presence of other elements or steps besides those declared in the claims. The indefinite article "a" preceding an element or step does not exclude the presence of a plurality of such elements or steps.

Claims

1. A static shear force testing device for adhesive tape, comprising a support part, a fixing part, and a load-bearing part, wherein, The fixing part is fixed to the support part, and the load-bearing part is configured to suspend one or more heavy objects. The fixing part and the load-bearing part can be bonded together by the tape to be tested. The tape static shear force testing device also includes a displacement sensor, which is configured to monitor the displacement of the load-bearing part relative to the fixing part.

2. The tape static shear force testing device according to claim 1, characterized in that, The load-bearing part is bonded to the fixing part by the tape to be tested and suspended on the fixing part.

3. The tape static shear force testing device according to claim 1, characterized in that, The fixing part includes a vertical plate, at least a portion of the front surface of the vertical plate being suitable for attaching the tape to be tested.

4. The tape static shear force testing device according to claim 1, characterized in that, The load-bearing part includes a horizontal plate, which is configured to face the sensing head of the displacement sensor so that the displacement sensor can monitor the displacement of the load-bearing part relative to the fixed part by monitoring the displacement of the horizontal plate.

5. The tape static shear force testing device according to claim 1 or 4, characterized in that, The load-bearing part includes a vertical plate, and at least a portion of the back surface of the vertical plate of the load-bearing part is suitable for attaching the tape to be tested.

6. The tape static shear force testing device according to claim 5, characterized in that, The lower end of the vertical plate of the load-bearing part is provided with one or more holes or hooks, which are configured to suspend one or more heavy objects.

7. The tape static shear force testing device according to claim 1, characterized in that, The fixing part and the load-bearing part are both metal panels.

8. The tape static shear force testing device according to claim 1, characterized in that, The displacement sensor is electrically connected to a storage device to record the position information and corresponding time measured by the displacement sensor.

9. The tape static shear force testing device according to claim 8, characterized in that, The storage device is electrically connected to a display device to display the position information and corresponding time measured by the displacement sensor.

10. The tape static shear force testing device according to claim 1, characterized in that, The weight is a weight.

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