A tackiness testing device

Abstract

The utility model discloses a kind of tackiness testing devices, belong to adhesive performance test technical field, including test table, cross plate, adhesive strip is adhered on cross plate, the test table is equipped with the fixed component that can be fixed to cross plate, and the test component that can detect the adhesion between cross plate and adhesive strip;Cross plate is reliably fixed by fixed component, prevent cross plate displacement or warping in testing process, ensure that adhesive strip is evenly stressed in peeling process, improve test repeatability and accuracy;Test component adopts servo motor drive screw rod, drive two clamps to move, realize the automatic peeling of adhesive strip, cooperate with tensile force sensor to record peeling force in real time.

Description

Technical Field

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

[0002] Currently, with the increasing environmental protection requirements, solvent-free polyurethane adhesives are widely used in packaging, composites, construction and other fields due to their advantages such as low VOC emissions and good adhesion performance. However, the reaction characteristics of solvent-free systems cause them to exhibit different adhesion behavior than traditional solvent-based adhesives in practical applications. In particular, in tackiness testing, there are problems such as poor test repeatability, significant impact of residues, and instability in the testing process.

[0003] In the existing testing process, the adhesive strips are prone to slippage or uneven stress, which leads to unstable test results. Utility Model Content

[0004] The purpose of this invention is to provide an adhesiveness testing device to solve the problems of easy slippage or uneven force distribution in existing adhesive strips.

[0005] To achieve the above objectives, the present invention employs the following technology: an adhesiveness testing device, comprising a test platform, a horizontal plate, an adhesive strip adhered to the horizontal plate, a fixing component capable of fixing the horizontal plate on the test platform, and a testing component capable of detecting the adhesion between the horizontal plate and the adhesive strip. The fixing assembly includes a mounting base fixedly installed on the test bench, an electric actuator fixedly installed on the mounting base, a fixing base fixedly installed on the output end of the electric actuator and the test bench respectively, vertical plates symmetrically installed on the fixing base, and a pressing assembly capable of limiting the horizontal plate is also assembled on the fixing base.

[0006] As a further description of the above technical solution: the pressing assembly includes a pressure plate that is slidably installed between two vertical plates, threaded holes that are symmetrically opened on the fixed seat, and a threaded rod that is threadedly installed on the pressure plate.

[0007] As a further description of the above technical solution: the size of the threaded hole is adapted to the threaded rod, the horizontal plate is placed between two fixed seats and the pressure plate, and a guide rail is fixedly installed on the top of the mounting seat, with one of the fixed seats slidably connected to the guide rail.

[0008] As a further description of the above technical solution: the test assembly includes a lead screw and a servo motor set on the test bench, a display is set on the lead screw via a mounting bracket, a support frame is fixedly installed on the display, and clamping plate one and clamping plate two are respectively set on the support frame.

[0009] As a further description of the above technical solution: it also includes adjustment components disposed on the support frame; The adjustment components include a worm gear rotatably mounted on a support frame, sliders symmetrically mounted on the support frame, a gear rotatably mounted on the support frame, a worm wheel fixedly mounted on the gear, and a rack fixedly mounted on each slider.

[0010] As a further description of the above technical solution: the worm gear meshes with the worm wheel, the slider and the support frame are slidably connected, and the gear meshes with the rack.

[0011] As a further description of the above technical solution: the first clamp and the second clamp are respectively fixedly installed on the slider, one end of the adhesive strip is located between the first clamp and the second clamp, and a tension sensor is also installed on the support frame.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: The horizontal plate is reliably fixed by a fixing component to prevent displacement or warping during testing, ensuring uniform force on the adhesive strip during peeling and improving test repeatability and accuracy. The testing component uses a servo motor to drive the lead screw, which moves the two clamping plates to achieve automatic peeling of the adhesive strip. The peeling force is recorded in real time by a tension sensor. At the same time, the distance between the two clamping plates can be flexibly adjusted by the rotation of the worm gear, in conjunction with gears and racks, to accommodate adhesive strips of different widths and thicknesses. Attached Figure Description

[0013] Figure 1 An overall schematic diagram according to an embodiment of the present utility model is shown; Figure 2 The present invention provides an embodiment of the present invention. Figure 1 Another perspective view; Figure 3 A schematic diagram of a fixing component according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of a pressing component according to an embodiment of the present invention is shown; Figure 5 The diagram shows the effect of clamping the adhesive strip with two clamps according to an embodiment of the present invention; Figure 6 A schematic diagram of the adjustment component provided according to an embodiment of the present invention is shown; Figure 7 A schematic diagram showing the positions of the rack and extension block according to an embodiment of the present invention is provided.

[0014] Legend: 10. Test stand; 11. Horizontal plate; 12. Adhesive strip; 20. Fixing component; 21. Mounting base; 22. Electric actuator; 23. Fixing base; 24. Vertical plate; 25. Pressing component; 251. Pressure plate; 252. Threaded hole; 253. Threaded rod; 30. Test component; 31. Lead screw; 32. Servo motor; 33. Display; 34. Mounting bracket; 35. Bearing frame; 36. Clamping plate one; 37. Clamping plate two; 38. Adjustment component; 381. Worm gear; 382. Slider; 383. Gear; 384. Worm wheel; 385. Rack. 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 scope of protection of the present utility model.

[0016] Reference Figure 1 - Figure 7 The adhesiveness testing device provided in this embodiment includes a test platform 10, a horizontal plate 11, an adhesive strip 12 bonded to the horizontal plate 11, the adhesive strip 12 being a solvent-free polyurethane adhesive, a fixing component 20 for fixing the horizontal plate 11, and a test component 30 for detecting the adhesion between the horizontal plate 11 and the adhesive strip 12. The fixing component 20 includes a mounting base 21 fixedly installed on the test bench 10, an electric actuator 22 fixedly installed on the mounting base 21, and a fixing base 23 fixedly installed on the output end of the electric actuator 22 and the test bench 10 respectively. The output end of the electric actuator 22 can drive the fixing base 23 connected thereto to move. The vertical plate 24 is symmetrically installed on the fixing base 23. The fixing base 23 is also equipped with a pressing component 25 that can limit the horizontal plate 11.

[0017] Reference Figure 3 - Figure 4 Specifically, in order to fix the horizontal plate 11, a pressing component 25 is provided. The pressing component 25 includes a pressure plate 251 that is slidably installed between two vertical plates 24. The pressure plate 251 can press down and fix the horizontal plate 11. Threaded holes 252 are symmetrically opened on the fixing seat 23, and threaded rods 253 are threadedly installed on the pressure plate 251.

[0018] In more detail, the size of the threaded hole 252 is adapted to the threaded rod 253, so the threaded rod 253 can rotate into the threaded hole 252. The horizontal plate 11 is placed between the two fixed seats 23 and the pressure plate 251. A guide rail is fixedly installed on the top of the mounting base 21, and one of the fixed seats 23 is slidably connected to the guide rail. The guide rail ensures that the fixed seat 23 connected to it remains stable when moving. In use, the horizontal plate 11 is placed between the two fixed seats 23, and then the electric actuator 22 is activated. The output end of the electric actuator 22 drives the fixed seat connected to it. The seat 23 moves, causing the horizontal plate 11 to be clamped by the two fixed seats 23. Then, the pressure plate 251 is pushed down, so that the pressure plate 251 contacts the top of the horizontal plate 11. Then, by rotating the threaded rod 253, the threaded rod 253 on the pressure plate 251 gradually descends and contacts and connects with the threaded hole 252, thereby completing the fixation of the horizontal plate 11. Then, by attaching the adhesive strip 12 to the top of the horizontal plate 11, one end of the adhesive strip 12 is fixed by the test component 30. By fixing the horizontal plate 11, the horizontal plate 11 will not lift or shift when the adhesive strip 12 is torn.

[0019] Reference Figure 5 - Figure 7 Specifically, in order to test the adhesion of solvent-free polyurethane adhesive, a test assembly 30 is set up. The test assembly 30 includes a lead screw 31 and a servo motor 32 set on the test bench 10. A protective shell is installed on the outside of the lead screw 31 to reduce dust contact with the lead screw 31. At the same time, a through groove of the same size as the mounting bracket 34 is opened on the protective shell, so that the mounting bracket 34 can move in the through groove through the lead screw 31. The lead screw 31 is fixedly connected to the output end of the servo motor 32, and the servo motor 32 can drive the lead screw 31 to rotate. The display 33 is set on the lead screw 31 through the mounting bracket 34. The mounting bracket 34 and the lead screw 31 are connected by threads, and the mounting bracket 34 is slidably installed on the test bench 10. The rotating lead screw 31 causes the mounting bracket 34 to drive the display 33 to move. The support frame 35 is fixedly installed on the display 33. Clamping plate 1 36 and clamping plate 2 37 are respectively set on the support frame 35. The clamping plate 1 36 and clamping plate 2 37 can fix the adhesive strip 12.

[0020] In more detail, it also includes an adjustment component 38 disposed on the support frame 35; The adjusting component 38 includes a worm gear 381 rotatably mounted on a support frame 35, sliders 382 symmetrically mounted on the support frame 35, a gear 383 rotatably mounted on the support frame 35, a worm wheel 384 fixedly mounted on the gear 383, and a rack 385 fixedly mounted on each slider 382, ​​with the two racks 385 located on both sides of the gear 383.

[0021] In more detail, the worm 381 meshes with the worm wheel 384, the slider 382 is slidably connected to the support frame 35, and the gear 383 meshes with the rack 385. Through the rotation of the gear 383, the two racks 385 can move synchronously towards opposite or opposite directions.

[0022] In more detail, clamping plate 36 and clamping plate 37 are respectively fixedly mounted on slider 382. The corresponding slider 382 enables clamping plate 36 and clamping plate 37 to move. One end of adhesive strip 12 is located between clamping plate 36 and clamping plate 37. A tension sensor is also installed on the support frame 35. The tension sensor can accurately measure the tension required for clamping plate 36 and clamping plate 37 to tear adhesive strip 12, thereby quantifying the adhesiveness of the adhesive, providing specific data for evaluating its performance, and displaying the data on display 33. After fixing the horizontal plate 11, one end of the adhesive strip 12 is placed between clamping plate 36 and clamping plate 37. Then, the worm gear 381 is rotated, and the worm wheel 384 drives the gear 383 to rotate through meshing. When the gear 383 rotates, the racks 385 on both sides can drive the sliders 382 connected to them to move. The two sliders 382 drive clamping plate 36 and clamping plate 37 to move towards the opposite side, thereby clamping one end of the adhesive strip 12. Then, the moving mounting bracket 34 allows clamping plate 36 and clamping plate 37 to pull one end of the adhesive strip 12, causing the adhesive strip 12 to tear continuously at the top of the horizontal plate 11. The tension sensor can accurately measure the tension required for clamping plate 36 and clamping plate 37 to tear the adhesive strip 12, thereby testing the adhesion of the solvent-free polyurethane adhesive.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adhesiveness testing device, comprising a test platform (10), a horizontal plate (11), and an adhesive strip (12) adhered to the horizontal plate (11), characterized in that, The test bench (10) is equipped with a fixing component (20) that can fix the horizontal plate (11) and a test component (30) that can detect the adhesion between the horizontal plate (11) and the adhesive strip (12). The fixing component (20) includes a mounting base (21) fixedly installed on the test bench (10), an electric actuator (22) fixedly installed on the mounting base (21), a fixing base (23) fixedly installed on the output end of the electric actuator (22) and the test bench (10), a vertical plate (24) symmetrically installed on the fixing base (23), and a pressing component (25) capable of limiting the horizontal plate (11) is also mounted on the fixing base (23).

2. The adhesiveness testing device according to claim 1, characterized in that, The pressing assembly (25) includes a pressure plate (251) slidably mounted between two vertical plates (24), threaded holes (252) symmetrically opened on the fixed seat (23), and a threaded rod (253) threadedly mounted on the pressure plate (251).

3. The adhesiveness testing device according to claim 2, characterized in that, The size of the threaded hole (252) is adapted to the threaded rod (253). The horizontal plate (11) is placed between two fixed seats (23) and the pressure plate (251). A guide rail is fixedly installed on the top of the mounting seat (21), and one of the fixed seats (23) is slidably connected to the guide rail.

4. The adhesiveness testing device according to claim 1, characterized in that, The test assembly (30) includes a lead screw (31) and a servo motor (32) mounted on the test bench (10). The display (33) is mounted on the lead screw (31) via a mounting bracket (34). The support frame (35) is fixedly mounted on the display (33). Clamping plate one (36) and clamping plate two (37) are respectively mounted on the support frame (35).

5. The adhesiveness testing device according to claim 4, characterized in that, It also includes an adjustment component (38) mounted on the support frame (35); The adjustment component (38) includes a worm gear (381) rotatably mounted on a support frame (35), sliders (382) symmetrically mounted on the support frame (35), a gear (383) rotatably mounted on the support frame (35), a worm wheel (384) fixedly mounted on the gear (383), and a rack (385) fixedly mounted on each slider (382).

6. The adhesiveness testing device according to claim 5, characterized in that, The worm (381) meshes with the worm wheel (384), the slider (382) is slidably connected to the support frame (35), and the gear (383) meshes with the rack (385).

7. The adhesiveness testing device according to claim 6, characterized in that, The first clamp (36) and the second clamp (37) are respectively fixedly installed on the slider (382), one end of the adhesive strip (12) is located between the first clamp (36) and the second clamp (37), and a tension sensor is also installed on the support frame (35).

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