Membrane hardness testing tool

Abstract

The utility model discloses a diaphragm hardness testing tool. The device comprises a connecting seat, a guide rod, a detection rod and a detection bench, one end of the guide rod is fixedly connected to the connecting seat, the guide rod is provided with a guide ring, the detection rod is inserted in the guide ring, the top end of the detection rod is provided with a counterweight bench used for bearing a counterweight, and the detection bench is located below the detection rod and is perpendicular to the detection rod. And a plurality of overlapped diaphragms to be detected are placed on the detection table. The hardness of the to-be-detected diaphragm is quantitatively detected by counting the to-be-detected diaphragm with the indentation, so that a basis is provided for selection of hardening parameters, and good balance among energy consumption, efficiency and quality is achieved.

Description

Technical Field

[0001] The utility model relates to a testing tool, more specifically, to a diaphragm hardness testing tool. Background Art

[0002] Hardness is a physical measure of a material's ability to deform under pressure or resist puncture. We typically use a relative hardness scale, with Shore A being commonly used for rubber materials. The test method is to place the specimen on a hard, stable, horizontal surface. Hold the durometer in a vertical position, with the tip of the indenter at least 9mm from any edge of the specimen. Place the indenter gently on the specimen, ensuring the base is parallel to the specimen and applying pressure for close contact.

[0003] However, in the display industry, thin products make this method difficult to measure. Companies need to test the hardness of products that are coated with resin and then hardened. It's known that the higher the degree of resin curing, the harder the product, and the degree of hardening is related to temperature and time. To strike a good balance between energy consumption, efficiency, and quality, it is necessary to provide a hardness test tool for thin products and standardize this basis to help the industry and consumers quantitatively judge the pressure resistance of diaphragms. Summary of the Invention

[0004] The utility model provides a diaphragm hardness testing tool, which can detect the hardness of thin products such as diaphragms, thereby achieving a good balance between hardening parameters and quality.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A diaphragm hardness testing tool comprises a connecting seat, a guide rod, a detection rod and a detection platform. One end of the guide rod is fixedly connected to the connecting seat. The guide rod is provided with a guide ring. The detection rod is inserted into the guide ring. The top of the detection rod is provided with a counterweight platform for carrying a counterweight. The detection platform is located below the detection rod and perpendicular to the detection rod. Several overlapping diaphragms to be tested are placed on the detection platform.

[0007] The test fixture measures diaphragm hardness by applying a known weight and a test rod with a predetermined contact area to overlapping diaphragms without impact for a predetermined time. The number of diaphragms with indentations is then counted to determine the hardness of the diaphragm being tested. The diaphragms being tested must all have the same hardness.

[0008] The connecting seat is used to position the guide rod, which is arranged along the horizontal plane. The guide rod restricts the detection rod through the guide ring so that it can only move in the preset vertical direction, and the detection platform is set perpendicular to the detection rod.

[0009] With the above structure, the hardness of the diaphragm to be tested is quantitatively detected by counting the diaphragms to be tested with indentations, thereby providing a basis for selecting hardening parameters and achieving a good balance between energy consumption, efficiency and quality.

[0010] Preferably, a gasket is provided between the test platform and the diaphragm to be tested. The structure simulates the actual use scenario of the diaphragm to be tested, thereby improving the authenticity of the test tooling.

[0011] Preferably, the surface of the gasket is provided with microstructures or regular patterns, and the gasket simulates a membrane with a diffusion effect in the light-emitting module.

[0012] Preferably, a contact plate is provided at the bottom of the detection rod, the contact plate being arranged perpendicular to the detection rod, and the contact plate controls the contact area between the detection rod and the diaphragm to be detected.

[0013] Preferably, the cross section of the abutting plate is a circle with a diameter of 3 cm. The structure adopts a circle rather than a figure with corner points, which can reduce data deviation caused by local stress.

[0014] Preferably, the connecting base is provided with a plurality of guide rods in the height direction, and the detection rod passes through the guide rings on each guide rod. The plurality of guide rods improves the guiding performance and ensures that the detection rod moves in the vertical direction.

[0015] Preferably, the detection platform is provided with ridges, which are closed, with the sidewalls of the ridges abutting the membrane to be detected, and the axial projection of the detection rod is located at the center of the pattern formed by the ridges. The ridges are used to limit the position of the membrane to be detected, so that the abutment plate can abut near the center of the membrane to be detected.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) By counting the diaphragms with indentations, the hardness of the diaphragms to be tested can be quantitatively tested, thereby providing a basis for the selection of hardening parameters and achieving a good balance between energy consumption, efficiency and quality;

[0018] (2) The setting of guide rods and convex strips simplifies operation and improves convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the utility model;

[0020] In the picture:

[0021] Connecting seat 1, guide rod 2, detection rod 3, detection platform 4, guide ring 5, counterweight 6, counterweight platform 7, diaphragm to be tested 8, gasket 9, microstructure 10, abutment plate 11, and convex strip 12. DETAILED DESCRIPTION

[0022] The present disclosure will be further described below with reference to the accompanying drawings and embodiments.

[0023] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are merely relational words determined for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure, and should not be understood as limitations on the present disclosure.

[0026] In this disclosure, terms such as "fixed connection," "connected," and "connection" should be interpreted broadly to mean a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediary. Relevant researchers or technicians in this field may determine the specific meaning of these terms in this disclosure based on specific circumstances, and they should not be construed as limiting this disclosure.

[0027] Example:

[0028] A diaphragm hardness testing tool includes a connecting seat 1, a guide rod 2, a detection rod 3 and a detection platform 4. One end of the guide rod 2 is fixedly connected to the connecting seat 1. The guide rod 2 is provided with a guide ring 5. The detection rod 3 is inserted into the guide ring 5. The top of the detection rod 3 is provided with a counterweight platform 7 for carrying a counterweight 6. The detection platform 4 is located below the detection rod 3 and perpendicular to the detection rod 3. Several overlapping diaphragms 8 to be tested are placed on the detection platform 4.

[0029] The test fixture detects diaphragm hardness by pressing a known weight 6 and the bottom of a test rod 3 with a predetermined contact area onto overlapping diaphragms 8 for a predetermined time. The number of diaphragms with indentations is then counted to determine the hardness of the diaphragm 8. The diaphragms 8 to be tested should all have the same hardness.

[0030] The connecting seat 1 is used to position the guide rod 2, which is arranged along the horizontal plane. The guide rod 2 limits the detection rod 3 through the guide ring 5 so that it can only move in a preset vertical direction. The detection platform 4 is set perpendicular to the detection rod 3.

[0031] With the above structure, the hardness of the diaphragm 8 to be tested is quantitatively detected by counting the diaphragms 8 to be tested with indentations, thereby providing a basis for selecting hardening parameters and achieving a good balance between energy consumption, efficiency and quality.

[0032] A gasket 9 is placed between the test platform 4 and the diaphragm 8 to be tested. This structure simulates the actual use scenario of the diaphragm 8 to be tested, improving the authenticity of the test tool. The surface of the gasket 9 is provided with microstructures 10 or regular patterns. This gasket 9 simulates the diffusion effect of the diaphragm in the light-emitting module.

[0033] A contact plate 11 is provided at the bottom of the detection rod 3, perpendicular to the rod. This plate controls the contact area between the rod 3 and the diaphragm 8 to be tested. Specifically, the cross-section of the plate 11 is a circle with a diameter of 3 cm. This circular structure, rather than a cornered pattern, reduces data deviations caused by localized stress.

[0034] The connecting base 1 is provided with a plurality of guide rods 2 in the height direction, and the detection rod 3 passes through the guide ring 5 on each guide rod 2. The plurality of guide rods 2 improve the guiding performance and ensure that the detection rod 3 moves in the vertical direction.

[0035] The detection platform 4 is provided with a ridge 12, which is closed and has its sidewalls in contact with the diaphragm to be detected. The axial projection of the detection rod 3 is located at the center of the pattern formed by the ridges 12. The ridge 12 is used to limit the position of the diaphragm to be detected, so that the abutment plate 11 can abut near the center of the diaphragm to be detected 8.

[0036] Regarding the detection steps, first place the gasket 9 in the convex strip 12, adapting it to the outline formed by the convex strip 12, and then place a number of diaphragms 8 to be tested. Generally, the number of diaphragms 8 to be tested is set to 8. Then place the detection rod 3, insert the detection rod 3 into the guide ring 5, and place the counterweight 6 gently on the counterweight platform 7 to avoid impact. Maintain the preset time. Generally, the time is set to 3 minutes, and then remove the counterweight 6 and the detection rod 3. Then count the number of diaphragms 8 to be tested that are crushed, and you can get the hardness of the diaphragm 8 to be tested. The more pieces there are, the lower the hardness and the weaker the pressure resistance, so as to deduce whether the corresponding resin curing parameters are reasonable. Among them, the weight of the counterweight 6 is 4500g.

[0037] For example, during the manufacturing process, the same resin will have different curing effects at different temperatures. This method can be used to visually see the pressure resistance and make adjustments. Different resins will also have different pressure resistance effects at the same temperature. This method can be used to identify which resin has better pressure resistance, as shown in the following table:

[0038] resin Curing conditions Number of stacked inspection pieces Number of indented pieces Diaphragm 8 to be tested using resin 1 130℃×1min 8 pieces 2 pieces Diaphragm 8 to be tested using resin 1 120℃×1min 8 pieces 3 pieces Diaphragm 8 to be tested using resin 2 130℃×1min 8 pieces 3 pieces Diaphragm 8 to be tested using resin 2 120℃×1min 8 pieces 5 pieces

[0039] The above-described embodiments are only preferred solutions of the present invention and do not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A diaphragm hardness testing tool, characterized in that: It includes a connecting seat, a guide rod, a detection rod and a detection platform. One end of the guide rod is fixedly connected to the connecting seat. The guide rod is provided with a guide ring. The detection rod is inserted into the guide ring. The top of the detection rod is provided with a counterweight platform for carrying a counterweight. The detection platform is located below the detection rod and perpendicular to the detection rod. Several overlapping diaphragms to be tested are placed on the detection platform.

2. A diaphragm hardness testing tool according to claim 1, characterized in that: A gasket is provided between the testing platform and the diaphragm to be tested.

3. A diaphragm hardness testing tool according to claim 2, characterized in that: The surface of the gasket is provided with microstructures or regular textures.

4. The diaphragm hardness testing tool according to claim 1, characterized in that: A contact plate is provided at the bottom of the detection rod, and the contact plate is vertically arranged to the detection rod.

5. The diaphragm hardness testing tool according to claim 4, characterized in that: The cross section of the abutment plate is circular with a diameter of 3 cm.

6. The diaphragm hardness testing tool according to claim 1, characterized in that: The connecting seat is provided with a plurality of guide rods in the height direction, and the detection rod passes through the guide rings on each guide rod.

7. A diaphragm hardness testing tool according to any one of claims 1 to 6, characterized in that: The detection table is provided with convex strips, which are closed and have side walls that fit the membrane to be detected. The axial projection of the detection rod is located at the center of the figure surrounded by the convex strips.

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