A testing device for the curing hardness of a uv light curing adhesive

Abstract

The utility model relates to the technical field of light -cured adhesive curing hardness test, concretely is a kind of UV light -cured adhesive curing hardness's testing device, including test table, bearing plate, pressure equipment and case, case is fixed on test table upper end, and pressure equipment output end is equipped with the detection platen of pressure strip;Bearing plate is connected to bottom plate through vertical rod, and bottom plate circumferential side has gear ring, and the drive assembly below test table contains motor and gear meshed with gear ring;Negative pressure air pump is equipped at bottom plate lower end, bearing plate, vertical rod and bottom plate center have the through -hole of communication negative pressure air pump, bearing plate lower surface has ball, and upper surface annular groove has rubber annular sealing seat, and it is controlled by touch control screen, and sample is adsorbed by negative pressure, and pressure equipment is pressed multiple times, and motor drives bearing plate rotation, realizes accurate, stable test, and improves result accuracy and repeatability.

Description

Technical Field

[0001] This utility model relates to the field of UV-curable adhesive curing hardness testing technology, specifically a device for testing the curing hardness of UV-curable adhesives. Background Technology

[0002] As a core material in electronics, optics, and other fields, the curing hardness of UV-curable adhesives directly affects product performance and reliability. Currently, the industry commonly uses manual scratching or single-point indentation methods for hardness testing, but these methods have significant technical bottlenecks.

[0003] Traditional testing relies on clamps or manual pressing to fix the sample, which can easily lead to surface damage or displacement. For example, when using the pencil scratch method, uneven manual pressure can cause deviations in scratch depth. In addition, when manually rotating the sample for multi-point testing, the positioning accuracy depends on the operator's experience, resulting in poor repeatability and thus reducing the accuracy of the test results. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a testing device for the curing hardness of UV-curable adhesives.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a testing device for the curing hardness of UV-curable adhesives, comprising a test platform, a support plate, a pressure device, and a chassis. The chassis is fixed at the upper end of the test platform, the support plate is located above the test platform, the pressure device is fixed above the test platform, and the output end of the pressure device is provided with a detection pressure plate, and the lower surface of the detection pressure plate is provided with multiple pressure strips.

[0008] The bearing plate has a vertical rod at its center that passes through the test bench and is rotatably connected to the test bench via a bearing. The lower end of the vertical rod has a base plate located below the test bench. The base plate has a toothed ring on its periphery. A drive assembly for driving the base plate to rotate is located below the test bench.

[0009] The lower end of the base plate is equipped with a negative pressure air pump, and the center of the support plate, the vertical rod and the base plate are provided with through holes that communicate with the suction end of the negative pressure air pump.

[0010] To facilitate the rotation of the support plate, the present invention includes the following improvements: the drive assembly includes a motor and a gear; the output end of the motor is provided with a motor shaft; the gear is fixed to one end of the motor shaft and meshes with a gear ring; the gear is fixed to one end of the motor shaft by bolts.

[0011] To improve the stability of the support plate during use, the present invention includes an improvement in that multiple ball bearings that contact the test platform are rolled around the lower surface of the support plate, which can provide an auxiliary support for the support plate.

[0012] To make the adhesive sample more firmly placed on the support plate, the present invention includes the following improvements: the upper surface of the support plate is provided with an annular groove, the through hole is located in the inner circle of the annular groove, and a detachable annular sealing seat is provided inside the annular groove. The annular sealing seat is made of rubber and is bonded to the inside of the annular groove.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a testing device for the curing hardness of UV-curable adhesives, which has the following beneficial effects:

[0015] The negative pressure adsorption method replaces the traditional clamps or manual pressing for fixation, avoiding damage to the sample surface and ensuring that the sample does not shift during the test, thus significantly improving the accuracy and reliability of the test.

[0016] The use of a drive component to achieve precise rotation of the carrier plate replaces the manual rotation of the sample for multi-point testing, eliminating positioning accuracy issues caused by differences in operator experience, greatly improving test repeatability, and further ensuring the consistency and comparability of test results. Attached Figure Description

[0017] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 3 This utility model Figure 1 The main view;

[0020] Figure 4 This is a top view of the through hole in this utility model;

[0021] In the diagram: 1. Test bench; 2. Chassis; 3. Touch control screen; 4. Bearing plate; 5. Ball bearing; 6. Vertical rod; 7. Base plate; 8. Gear ring; 9. Negative pressure air pump; 10. Through hole; 11. Annular groove; 12. Annular sealing seat; 13. Gear; 14. Pressure equipment; 15. Detection pressure plate; 16. Motor. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 This utility model discloses a testing device for the curing hardness of UV-curable adhesives, including a test platform 1, a support plate 4, a pressure device 14, and a housing 2. The housing 2 is fixed to the upper end of the test platform 1, the support plate 4 is located above the test platform 1, the pressure device 14 is fixed above the test platform 1 (the pressure device 14 is fixed to the upper end face of the test platform 1 by an L-shaped bracket), and the output end of the pressure device 14 is provided with a detection pressure plate 15, and the lower surface of the detection pressure plate 15 is provided with multiple pressure strips.

[0024] The center of the bearing plate 4 is provided with a vertical rod 6 that passes through the test bench 1 and is rotatably connected to the test bench 1 via a bearing. The lower end of the vertical rod 6 is provided with a base plate 7, which is located below the test bench 1. A toothed ring 8 is provided on the periphery of the base plate 7. A drive assembly for driving the base plate 7 to rotate is provided below the test bench 1.

[0025] The lower end of the base plate 7 is provided with a negative pressure air pump 9, and the center of the support plate 4, the vertical rod 6 and the base plate 7 are provided with a through hole 10 that communicates with the suction end of the negative pressure air pump 9.

[0026] The drive assembly includes a motor 16 and a gear 13. The output end of the motor 16 is provided with a motor shaft. The gear 13 is fixed to one end of the motor shaft and meshes with a gear ring 8. The gear 13 is fixed to one end of the motor shaft by bolts.

[0027] First, the operator adjusts the pressure device 14 and the motor 16 through the touch control screen 3, and sets the pressure parameters and other relevant test conditions of the pressure device 14.

[0028] Next, the UV-curable adhesive sample to be tested is placed stably on the support plate 4.

[0029] Then the negative pressure air pump 9 is started. Since the center of the support plate 4, the vertical rod 6 and the bottom plate 7 are provided with through holes 10 that are connected to the suction end of the negative pressure air pump 9, a negative pressure environment will be formed in the through holes 10. Under the action of negative pressure, the adhesive sample is firmly adsorbed on the support plate 4.

[0030] The upper surface of the support plate 4 is provided with an annular groove 11, and the through hole 10 is located in the inner circle of the annular groove 11. The annular groove 11 is provided with a detachable annular sealing seat 12. The annular sealing seat 12 is made of rubber and is bonded to the inside of the annular groove 11.

[0031] The rubber annular sealing seat 12 inside the annular groove 11 on the upper surface of the bearing plate 4 further enhances the sealing and stability of the adsorption.

[0032] Then, the pressure device 14 is started. The output end of the pressure device 14 drives the detection plate 15 to descend, so that the detection plate 15 presses down on the adhesive sample according to the preset pressure. Multiple pressure strips on the lower surface of the detection plate 15 fully contact the sample surface and apply pressure. After completing one test, the detection plate 15 is reset.

[0033] At this time, the drive assembly under the test bench 1 starts to work. The motor shaft at the output end of the motor 16 drives the gear 13 to rotate. The gear 13 meshes with the gear ring 8 on the periphery of the base plate 7, thereby driving the base plate 7, the vertical rod 6 and the support plate 4 to rotate as a whole by a specified angle.

[0034] Then, the pressure plate 15 is lowered again to perform a pressure test, and this pressure operation is repeated multiple times.

[0035] Finally, the operator observes the degree of damage to the surface of the adhesive sample to assess the curing hardness of the UV-cured adhesive.

[0036] Multiple ball bearings 5 ​​that roll in contact with the test platform 1 are arranged on the circumferential side of the lower surface of the support plate 4, which can provide an auxiliary support for the support plate 4.

[0037] Throughout the test, multiple rolling balls 5, which are arranged around the lower surface of the support plate 4, contact the test bench 1, providing auxiliary support for the support plate 4 and ensuring the stability of the rotation of the support plate 4 and the test process.

[0038] The ball bearings 5 ​​on the lower surface of the bearing plate 4 provide auxiliary support, which effectively enhances the stability of the bearing plate 4 during rotation and testing, and reduces the impact of shaking or tilting on the test results.

[0039] The design of the annular groove 11 and the rubber annular sealing seat 12 not only optimizes the negative pressure adsorption effect, but also makes the annular sealing seat 12 detachable, which is convenient for replacement or cleaning according to different testing needs, thus improving the applicability and maintenance convenience of the device.

[0040] The entire device controls the pressure equipment 14 and the motor 16 via the touch control screen 3. It is highly automated, easy to operate, and reduces the technical threshold and labor intensity for operators.

[0041] The device has multiple pressure strips on the lower surface of the test plate 15 (the pressure strips are fixed to the lower surface of the test plate 15 by bolts), which can more comprehensively test the surface of the adhesive sample and obtain more abundant hardness data. This provides a more sufficient and accurate basis for evaluating the curing performance of UV-curable adhesives and helps to improve the product performance and reliability of UV-curable adhesives in the fields of electronics and optics.

[0042] Pressure Equipment 14: HIT-300 digital display pressure testing machine, pressure range: 0-300N, the output pressure can be precisely adjusted through the touch control screen 3 to meet the testing needs of adhesives with different curing hardness (e.g., low hardness samples require low pressure, high hardness samples require high pressure).

[0043] Motor 16: Depending on the drive requirements, a Y2 series motor can be selected.

[0044] The chassis 2 serves as the control center of the equipment, integrating control circuits and signal processing modules. The chassis 2 also integrates a Siemens S7-200 SMART series PLC, which is responsible for signal processing and command distribution. It receives command signals from the touch control screen 3 through a preset program and converts them into execution signals, which are then transmitted to the motor 16 and the pressure device 14 to achieve coordinated control. The touch control screen 3 serves as a human-machine interface, allowing operators to input parameters, send commands, and display the equipment's operating status in real time.

[0045] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A testing device for the curing hardness of a UV-curable adhesive, comprising a testing platform (1), a support plate (4), a pressure device (14), and a housing (2), characterized in that: The chassis (2) is fixed on the upper end of the test bench (1), the bearing plate (4) is located above the test bench (1), the pressure device (14) is fixed above the test bench (1), and the output end of the pressure device (14) is provided with a detection pressure plate (15), and the lower surface of the detection pressure plate (15) is provided with multiple pressure strips. The center of the bearing plate (4) is provided with a vertical rod (6) that passes through the test bench (1) and is rotatably connected to the test bench (1) through a bearing. The lower end of the vertical rod (6) is provided with a base plate (7). The base plate (7) is located below the test bench (1). The periphery of the base plate (7) is provided with a gear ring (8). The test bench (1) is provided with a drive assembly for driving the base plate (7) to rotate. The bottom end of the base plate (7) is provided with a negative pressure air pump (9), and the center of the bearing plate (4), the vertical rod (6) and the base plate (7) is provided with a through hole (10) that communicates with the suction end of the negative pressure air pump (9).

2. The device for testing the curing hardness of UV-curable adhesives according to claim 1, characterized in that: The drive assembly includes a motor (16) and a gear (13). The output end of the motor (16) is provided with a motor shaft, and the gear (13) is fixed to one end of the motor shaft and meshes with the gear ring (8).

3. The device for testing the curing hardness of a UV-curable adhesive according to claim 2, characterized in that: The gear (13) is fixed to one end of the motor shaft by bolts.

4. The device for testing the curing hardness of a UV-curable adhesive according to claim 3, characterized in that: Multiple balls (5) of the test stage (1) are rolled around the lower surface of the bearing plate (4).

5. The testing device for the curing hardness of a UV-curable adhesive according to claim 4, characterized in that: The upper surface of the bearing plate (4) is provided with an annular groove (11), and the through hole (10) is located in the inner circle of the annular groove (11). The interior of the annular groove (11) is provided with a detachable annular sealing seat (12).

6. The device for testing the curing hardness of a UV-curable adhesive according to claim 5, characterized in that: The annular sealing seat (12) is made of rubber and is bonded to the inside of the annular groove (11).

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