Device for detecting tensile strength of adhesive film

Abstract

The utility model relates to an adhesive film tensile strength detection device, and belongs to the technical field of adhesive film performance testing. The device comprises an operation table which is provided with fixing plates installed on the two sides; the rotating shaft is transversely and movably mounted between the two fixing plates; the threads are arranged on two sides of the rotating shaft and are opposite in rotating direction; the moving plates are axially, symmetrically and movably arranged on the two sides of the rotating shaft; the positioning assembly is arranged on the moving plate and used for limiting and fixing the adhesive film; and the display assembly is arranged on one side of the fixing plate and is used for reflecting the adhesive film tension test result. According to the adhesive film tensile strength detection device provided by the utility model, the alternate rotation of the plurality of circular rings is realized through the matching of the moving plate, the connecting rod, the arc-shaped plate and the limiting rod, the moving distance of the moving plate can be intuitively reflected, and an operator can conveniently count data.

Description

Technical Field

[0001] This utility model relates to the field of adhesive film performance testing technology, and in particular to an adhesive film tensile strength testing device. Background Technology

[0002] Adhesive film is short for film-like adhesive, which is usually supplied in film form. It is mainly divided into two types: carrier adhesive film and carrier-free (pure) adhesive film. It is widely used in industries such as electronics, instruments, ceramics, handicrafts, home appliances, bicycles, kitchens, furniture and paint products. It can be attached to the surface of products to form protection. Therefore, adhesive film needs to have a certain degree of extensibility. So adhesive film needs to be tested for tensile strength before leaving the factory to test whether its performance meets the standards.

[0003] Tensile strength testing of adhesive films typically involves clamping both ends of the film and applying tension to measure its tensile strength, elongation, and other performance indicators. This usually involves using displacement sensors, force sensors, and data acquisition systems to record and analyze test data in real time. However, these devices are expensive, resulting in significant costs. Therefore, some smaller factories use simpler devices to measure tensile strength and reduce costs. For example, the performance of the adhesive film can be reflected by measuring the distance the clamping mechanisms move in opposite directions before the film breaks. The longer the movement distance, the stronger the tensile strength. However, after the measurement, the operator's visual observation of the clamping mechanism's movement distance is not intuitive enough, significantly impacting data recording. Utility Model Content

[0004] Therefore, it is necessary to provide a film tensile strength testing device to address the aforementioned technical problems.

[0005] This utility model provides a film tensile strength testing device, comprising:

[0006] The control panel has fixed plates mounted on both sides;

[0007] A rotating shaft is laterally movably mounted between the two fixed plates;

[0008] The threads are located on both sides of the rotating shaft and have opposite directions of rotation.

[0009] The movable plates are axially symmetrically arranged on both sides of the rotation axis;

[0010] A positioning component, disposed on the movable plate, is used to limit and fix the adhesive film;

[0011] A display component, located on one side of the fixed plate, is used to display the results of the adhesive film tensile test.

[0012] In one embodiment, the display component includes a cylinder that is fixedly connected to the fixing plate. An arc-shaped groove is formed on the cylinder, and an arc plate is slidably disposed in the arc-shaped groove. The surface of the arc plate is provided with a curved groove. Multiple rings are movably sleeved in a horizontal array on the outer side of the cylinder. Limiting rods are fixedly disposed on the inner side of each ring, and the limiting rods are slidably fitted with the curved grooves.

[0013] In one embodiment, the fixed plate has a horizontal groove, and a connecting rod is movably disposed in the horizontal groove. One end of the connecting rod is fixedly connected to the movable plate. A movable rod is fixedly disposed on the end of the arc-shaped plate near the fixed plate on the same side. The end of the movable rod away from the arc-shaped plate is fixedly connected to the end of the connecting rod away from the movable plate. Both the connecting rod and the movable rod are slidably connected to the horizontal groove.

[0014] In one embodiment, the positioning component includes a vertical plate fixedly connected to the top of the movable plate. A horizontal plate and a positioning plate are fixedly arranged on one side of the movable plate from top to bottom. A lead screw is rotatably arranged on the top of the movable plate. The lead screw moves through the horizontal plate and the positioning plate. A circular groove is formed in the center of the horizontal plate. The lead screw moves through the circular groove and the diameter of the circular groove is larger than the diameter of the lead screw.

[0015] In one embodiment, the vertical plate has a vertical groove, the positioning plate is slidably connected to the vertical groove, and a round rod is fixedly arranged between the two fixed plates, the round rod movably passing through the two movable plates.

[0016] In one embodiment, the upper surface of the positioning plate is provided with anti-slip texture.

[0017] In one embodiment, the positioning plate has a slot, a movable plate is movably disposed in the slot, a plurality of springs are fixedly disposed between the bottom of the movable plate and the inner wall of the slot, a support plate is fixedly disposed on one side of the positioning plate, a pressure plate is fixedly disposed on one side of the movable plate, a pressure rod is fixedly disposed on the top of the pressure plate, and a limit plate is fixedly disposed on one side of the horizontal plate, with the pressure rod movably abutting against the limit plate.

[0018] The aforementioned film tensile strength testing device achieves the alternating rotation of multiple rings through the cooperation of a moving plate, connecting rod, arc plate, and limiting rod. This allows for a more intuitive reflection of the moving distance of the moving plate, facilitating data collection by the operator. The cooperation of a lead screw, positioning plate, and cross plate enables the positioning of both ends of the film, ensuring that the film will not detach during the testing process and thus affecting the testing progress. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 for Figure 1 Enlarged diagram of part A in the middle;

[0022] Figure 3 This is a schematic diagram of the display component in this utility model;

[0023] Figure 4 This is a schematic diagram of the limiting rod in this utility model;

[0024] Figure 5 This is a schematic diagram of the vertical groove in this utility model;

[0025] Figure 6 This is a schematic diagram of the support plate in this utility model.

[0026] Figure label:

[0027] 1. Operating table; 2. Rotating shaft; 3. Fixed plate; 31. Horizontal groove; 4. Thread; 5. Moving plate; 6. Positioning assembly; 61. Vertical plate; 611. Vertical groove; 62. Horizontal plate; 621. Circular groove; 63. Positioning plate; 631. Groove; 64. Lead screw; 7. Display assembly; 71. Cylinder; 72. Arc groove; 73. Arc plate; 74. Curved groove; 75. Circular ring; 76. Limiting rod; 8. Connecting rod; 9. Moving rod; 10. Round rod; 11. Anti-slip texture; 12. Movable plate; 13. Spring; 14. Support plate; 15. Pressure plate; 16. Pressure rod; 17. Limiting plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] The following is combined with Figures 1-6 The present invention describes a film tensile strength testing device, comprising:

[0034] The control panel 1 has fixed plates 3 installed on both sides;

[0035] The rotating shaft 2 is laterally movably installed between the two fixed plates 3;

[0036] Thread 4 is provided on both sides of the rotating shaft 2 and in opposite directions;

[0037] The movable plate 5 is axially symmetrically movable on both sides of the rotating shaft 2;

[0038] Positioning component 6, disposed on the movable plate 5, is used to limit and fix the adhesive film;

[0039] Display component 7, located on one side of the fixed plate 3, is used to display the results of the adhesive film tensile test.

[0040] Specifically, the two ends of the adhesive film to be tested are fixed by the positioning components 6 on both sides. Then, the rotating shaft 2 is rotated. The rotation of the rotating shaft 2 causes the moving plates 5 on both sides to move away from each other through the action of the thread 4, thereby pulling the adhesive film sandwiched in the middle. During the movement of the moving plate 5, the movement distance of the moving plate 5 can be displayed intuitively through the display component 7, which makes it convenient for the operator to record the movement distance of the moving plate 5 after the inspection. The tensile strength of the adhesive film is calculated based on the movement distance. The operating table 1 and the fixed plate 3 provide support.

[0041] See Figure 1 and Figures 3-4 As shown, in this embodiment, the display component 7 includes a cylinder 71, which is fixedly connected to the fixing plate 3. An arc-shaped groove 72 is provided on the cylinder 71, and an arc-shaped plate 73 is slidably disposed in the arc-shaped groove 72. A curved groove 74 is provided on the surface of the arc-shaped plate 73. A plurality of rings 75 are movably sleeved in a horizontal array on the outer side of the cylinder 71. A limit rod 76 is fixedly provided on the inner side of each ring 75, and the limit rod 76 is slidably fitted with the curved groove 74.

[0042] Specifically, when the two movable plates 5 move away from each other, they will pull the adhesive film. At the same time as the movable plates 5 move, the arc plate 73 moves synchronously. The arc plate 73 moves along the arc groove 72 opened in the cylinder 71 towards the fixed plate 3 on the same side. The movement of the arc plate 73 drives the curved groove 74 to move. During the movement, the curved groove 74 will fit with the limiting rod 76, thereby driving the limiting rod 76 and the ring 75 to rotate. An indicator device can be set on the outside of the ring 75. The movement distance of the movable plate 5 can be directly observed by the rotation state of the ring 75 and the indicator device and the number of rotations of the ring 75, which makes it convenient for the operator to count the movement of the movable plate 5.

[0043] See Figures 1-3 As shown, in this embodiment, the fixed plate 3 has a horizontal groove 31, and a connecting rod 8 is movably disposed in the horizontal groove 31. One end of the connecting rod 8 is fixedly connected to the movable plate 5. A movable rod 9 is fixedly disposed on the same side of the arc plate 73 near the fixed plate 3. The end of the movable rod 9 away from the arc plate 73 is fixedly connected to the end of the connecting rod 8 away from the movable plate 5. Both the connecting rod 8 and the movable rod 9 are slidably connected to the horizontal groove 31.

[0044] Specifically, as the moving plates 5 move away from each other, they will drive the connecting rod 8, the moving rod 9, and the arc plate 73 to move synchronously. The connecting rod 8 and the moving rod 9 can move along the transverse groove 31 to avoid collision with the fixed plate 3 during the movement. The movement of the arc plate 73 can realize the alternating rotation of multiple rings 75, which can more intuitively reflect the moving distance of the moving plates 5.

[0045] See Figure 1 , Figure 2 and Figures 5-6 As shown, in this embodiment, the positioning component 6 includes a vertical plate 61, which is fixedly connected to the top of the movable plate 5. A horizontal plate 62 and a positioning plate 63 are fixedly arranged on one side of the movable plate 5 from top to bottom. A lead screw 64 is rotatably arranged on the top of the movable plate 5. The lead screw 64 moves through the horizontal plate 62 and the positioning plate 63. A circular groove 621 is opened in the center of the horizontal plate 62. The lead screw 64 moves through the circular groove 621, and the diameter of the circular groove 621 is larger than the diameter of the lead screw 64.

[0046] Specifically, in the initial state, the two movable plates 5 are in a position close to each other. At this time, the two ends of the adhesive film to be tested are placed on the surface of the positioning plate 63. The lead screw 64 is rotated. Since the diameter of the circular groove 621 is larger than the diameter of the lead screw 64, the rotation of the lead screw 64 will not affect the horizontal plate 62. The horizontal plate 62 remains stationary, and the positioning plate 63 will move upward along the vertical plate 61, thereby driving the adhesive film to move upward and finally clamping it between the positioning plate 63 and the horizontal plate 62, which can position the adhesive film. Then, the rotating shaft 2 is rotated, and the two movable plates 5 move away from each other, so that the adhesive film can be stretched to test its tensile strength.

[0047] See Figure 5 As shown, in this embodiment, the vertical plate 61 has a vertical groove 611, the positioning plate 63 is slidably connected to the vertical groove 611, and a round rod 10 is fixedly arranged between the two fixed plates 3, the round rod 10 movably passing through the two moving plates 5.

[0048] Specifically, the rotation of the lead screw 64 will cause the positioning plate 63 to move up and down along the vertical groove 611. This is to prevent the positioning plate 63 from rotating with the rotation of the lead screw 64. The rotation of the rotating shaft 2 will cause the moving plates 5 on both sides to move. During the movement of the moving plates 5, they will move along the round rod 10. This is to ensure that the moving plates 5 will always move laterally along a straight line.

[0049] See Figure 2 As shown, in this embodiment, the upper surface of the positioning plate 63 is provided with anti-slip texture 11.

[0050] Specifically, the anti-slip texture 11 can increase the friction between the anti-slip texture and the adhesive film, ensuring that the positioning plate 63 and the horizontal plate 62 can more firmly clamp the adhesive film.

[0051] See Figure 5 and Figure 6 As shown, in this embodiment, the positioning plate 63 has a slot 631, and a movable plate 12 is movably disposed in the slot 631. A plurality of springs 13 are fixedly disposed between the bottom of the movable plate 12 and the inner wall of the slot 631. A support plate 14 is fixedly disposed on one side of the positioning plate 63, a pressure plate 15 is fixedly disposed on one side of the movable plate 12, a pressure rod 16 is fixedly disposed on the top of the pressure plate 15, and a limit plate 17 is fixedly disposed on one side of the horizontal plate 62. The pressure rod 16 and the limit plate 17 are movably abutted against each other.

[0052] Specifically, the film to be tested is placed on the surface of the positioning plate 63 and the support plate 14. Then, under the action of the lead screw 64, the positioning plate 63 moves upward, and the pressure rod 16 also rises and abuts against the limiting plate 17. The positioning plate 63 continues to move upward, and under the action of the limiting plate 17, it drives the pressure rod 16 to move downward. The downward movement of the pressure rod 16 drives the pressure plate 15 and the movable plate 12 to move downward. The movable plate 12 moves downward along the slot 631 and compresses the spring 13. The downward movement of the pressure plate 15 cooperates with the support plate 14 to clamp and fix the film. At the same time, the positioning plate 63 also abuts against the horizontal plate 62 to clamp the film in the middle, which can further ensure the positioning effect of the film.

[0053] During implementation, the adhesive film to be tested is placed on the surfaces of the positioning plate 63 and the support plate 14. Then, under the action of the lead screw 64, the positioning plate 63 moves upward, and the pressure rod 16 rises accordingly, abutting against the limiting plate 17. Continuing to move the positioning plate 63 upward, the limiting plate 17 causes the pressure rod 16 to move downward. The downward movement of the pressure rod 16 causes the pressure plate 15 and the movable plate 12 to move downward. The movable plate 12 moves downward along the slot 631, compressing the spring 13. The downward movement of the pressure plate 15 cooperates with the support plate 14 to clamp and fix the adhesive film. Simultaneously, the positioning plate 63 also abuts against the horizontal plate 62, clamping the adhesive film in the middle. This further ensures the positioning effect of the adhesive film. Then, the rotating shaft 2 is rotated... The rotation of the moving shaft 2, through the action of the thread 4, drives the two moving plates 5 to move away from each other, thereby pulling the film sandwiched in the middle. As the moving plates 5 move away from each other, they will drive the connecting rod 8, the moving rod 9 and the arc plate 73 to move synchronously. The arc plate 73 moves along the arc groove 72 opened in the cylinder 71 towards the fixed plate 3 on the same side. The movement of the arc plate 73 drives the curved groove 74 to move. During the movement, the curved groove 74 will fit with the limiting rod 76, thereby driving the limiting rod 76 and the ring 75 to rotate. An indicator device can be set on the outside of the ring 75. By observing the rotation status of the ring 75 and the indicator device and the number of rotations of the ring 75, the movement distance of the moving plate 5 can be directly observed, which is convenient for the operator to count the movement of the moving plate 5.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A device for testing the tensile strength of an adhesive film, characterized in that, include: The control panel has fixed plates mounted on both sides; A rotating shaft is laterally movably mounted between the two fixed plates; The threads are located on both sides of the rotating shaft and have opposite directions of rotation. The movable plates are axially symmetrically arranged on both sides of the rotation axis; A positioning component, disposed on the movable plate, is used to limit and fix the adhesive film; A display component, located on one side of the fixed plate, is used to display the results of the adhesive film tensile test.

2. The adhesive film tensile strength testing device according to claim 1, characterized in that, The display component includes a cylinder, which is fixedly connected to the fixing plate. An arc-shaped groove is formed on the cylinder, and an arc plate is slidably disposed in the arc-shaped groove. The surface of the arc plate is provided with a curved groove. Multiple rings are movably sleeved in a horizontal array on the outer side of the cylinder. Limiting rods are fixedly provided on the inner side of each ring, and the limiting rods are slidably fitted with the curved grooves.

3. The adhesive film tensile strength testing device according to claim 2, characterized in that, The fixed plate has a horizontal groove, and a connecting rod is movably disposed in the horizontal groove. One end of the connecting rod is fixedly connected to the movable plate. A movable rod is fixedly disposed on the end of the arc plate near the fixed plate on the same side. The end of the movable rod away from the arc plate is fixedly connected to the end of the connecting rod away from the movable plate. Both the connecting rod and the movable rod are slidably connected to the horizontal groove.

4. The adhesive film tensile strength testing device according to claim 1, characterized in that, The positioning component includes a vertical plate, which is fixedly connected to the top of the movable plate. A horizontal plate and a positioning plate are fixedly arranged on one side of the movable plate from top to bottom. A lead screw is rotatably arranged on the top of the movable plate. The lead screw moves through the horizontal plate and the positioning plate. A circular groove is opened in the center of the horizontal plate. The lead screw moves through the circular groove and the diameter of the circular groove is larger than the diameter of the lead screw.

5. The adhesive film tensile strength testing device according to claim 4, characterized in that, The vertical plate has a vertical groove, the positioning plate is slidably connected to the vertical groove, and a round rod is fixedly arranged between the two fixed plates, the round rod movably passing through the two moving plates.

6. The adhesive film tensile strength testing device according to claim 4, characterized in that, The upper surface of the positioning plate is provided with anti-slip texture.

7. The adhesive film tensile strength testing device according to claim 4, characterized in that, The positioning plate has a slot, and a movable plate is movably arranged in the slot. Multiple springs are fixed between the bottom of the movable plate and the inner wall of the slot. A support plate is fixedly arranged on one side of the positioning plate, and a pressure plate is fixedly arranged on one side of the movable plate. A pressure rod is fixedly arranged on the top of the pressure plate, and a limit plate is fixedly arranged on one side of the horizontal plate. The pressure rod and the limit plate movably abut against each other.

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