An enamel coating impact resistance testing machine

Abstract

The utility model discloses a kind of glaze coating anti-impact testing machines, including base;Portal frame;Movable plate and impact ball.Base is used to place glass test plate with glaze coating;Portal frame is fixed on base, and its upright column inner side is equipped with multiple equidistant slots;Movable plate is adjusted position by being inserted in different height slot, and middle part is equipped with release hole;Impact ball is free to fall from release hole and impact test plate coating.This testing machine realizes the accurate grading adjustment of impact height by slot structure, ensure that impact ball falls vertically and impact point is consistent, effectively solve the precision difference that exists in artificial test;Repeatability low etc. Problem, for photovoltaic backboard glaze coating impact resistance performance evaluation provides standardized testing means, with simple structure;It is easy to operate;Test result is accurate and reliable Advantage.

Description

Technical Field

[0001] This utility model relates to the field of coating testing instruments, and in particular to a glaze coating impact resistance testing machine. Background Technology

[0002] Currently, photovoltaic backsheet glass often employs screen printing to apply a high diffuse reflection glaze coating to improve light reflection efficiency. The mechanical strength of this coating, especially its impact resistance, directly affects the long-term reliability of the module. However, during transportation, installation, and operation, the backsheet glass is susceptible to impacts from hard objects. If the glaze coating is damaged or peels off due to impact, the reflectivity will decrease, thus affecting the output power and durability of the entire photovoltaic module. Existing technologies lack dedicated testing equipment for the impact resistance of this type of coating. Drop ball tests are often conducted manually, resulting in inaccurate impact height control, poor consistency in impact point positioning, and low repeatability of results. This makes it difficult to accurately assess the critical value of the coating's impact resistance strength and fails to provide a reliable basis for process optimization and quality control. Therefore, there is an urgent need to develop a standardized impact resistance testing device that can accurately control impact energy, is easy to operate, and provides consistent test results. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a glaze coating impact resistance testing machine, overcoming problems such as inaccurate height control and large drop point deviation caused by manual operation. It provides a standardized testing method for evaluating the impact strength of high diffuse reflection glaze coatings such as those used in photovoltaic backsheets, which is of great significance for product quality control, process optimization, and product reliability improvement.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A glaze coating impact resistance testing machine, including A base for holding a glass test plate with a screen-printed enamel coating to be tested; A gantry frame is fixedly installed on the base, and the gantry frame has multiple equally spaced slots along the height direction; A movable plate is movably mounted in the slot, and a release hole is provided in the middle of the movable plate; An impact ball is used to release it from the release hole so that it falls freely to impact the glaze coating on the surface of the glass test plate.

[0005] According to an embodiment of this utility model, a glaze coating impact resistance testing machine has at least the following beneficial effects: This utility model provides a dedicated testing device for the impact resistance performance of glaze coatings through the ingenious combination of a base, a gantry frame, a movable plate, and an impact ball. The base provides a stable and reliable placement platform for the glass test plate, ensuring that the test plate will not shift during the test. Multiple equally spaced slots along the height direction on the gantry frame allow the movable plate to be quickly and accurately positioned at different heights, thereby achieving precise graded adjustment of the impact energy of the impact ball. The release hole in the middle of the movable plate ensures that the impact ball falls vertically and freely, guaranteeing the consistency of the impact point and the repeatability of the test results. This testing machine effectively overcomes the problems of inaccurate height control and large drop point deviation caused by manual operation, providing a standardized testing method for evaluating the impact strength of high diffuse reflection glaze coatings such as those used for photovoltaic backsheets. This is of great significance for product quality control, process optimization, and product reliability improvement.

[0006] According to some embodiments of the present invention, the base is U-shaped, and a hollow groove corresponding to the release hole is provided in the middle of the base, and the glass test plate is placed on the hollow groove.

[0007] The advantages are that the U-shaped base structure not only ensures the stability of the overall structure, but also facilitates the observation of the impact on the back of the glass test plate through the hollow groove design. At the same time, it ensures that the impact ball has enough space to fall after it falls, avoiding secondary collisions that could interfere with the test results.

[0008] According to some embodiments of the present invention, the hollow groove is provided with a threaded hole on its outer periphery, and the threaded hole is used to install bolts to fix the glass test plate.

[0009] The advantages are: the bolt fixing device can firmly clamp the glass test plate, preventing it from moving or vibrating during the impact, ensuring that the impact position is accurate and consistent each time, and improving the reliability and comparability of the test data.

[0010] According to some embodiments of the present invention, the gantry frame includes columns connected to both sides of the base; a crossbeam connecting the tops of the two columns; and slots disposed on the inner sides of the two columns opposite each other.

[0011] The advantages are: the gantry frame structure has extremely high rigidity and stability, which can effectively avoid shaking during the test; the relative arrangement of the slots ensures the levelness and stability of the movable plate after installation, ensuring that the impact ball falls vertically.

[0012] According to some embodiments of this utility model, the height of the column is 1.2 meters to 1.8 meters.

[0013] The advantage is that this height range provides sufficient testing span, which can meet the needs of low-energy impact testing as well as high-energy impact testing, making it widely applicable.

[0014] According to some embodiments of this utility model, the slots are provided at 10cm intervals along the column.

[0015] The advantage is that the 10cm interval setting allows for fine adjustment of the impact height, ensuring ease of operation while obtaining accurate critical impact height data.

[0016] According to some embodiments of this utility model, the slot is marked with scale.

[0017] The advantages are: the scale markings make height adjustment intuitive and clear, allowing operators to quickly and accurately select the test height, reducing reading errors and improving test efficiency.

[0018] According to some embodiments of this utility model, the movable plate is square in shape.

[0019] The advantages are: the square movable plate has a simple structure, is easy to process, and has good stability when matched with the gantry frame. It is not easy to shake after installation, ensuring a safe and reliable testing process.

[0020] According to some embodiments of this utility model, the shape of the release hole is circular, and the diameter of the release hole matches the size of the impact ball.

[0021] The advantage is that the circular release hole perfectly matches the shape of the impact ball, which not only ensures the smooth passage of the impact ball, but also effectively restricts the horizontal movement of the impact ball, ensuring the accurate vertical descent trajectory.

[0022] According to some embodiments of this utility model, the impact ball is a metal ball of standard mass and diameter.

[0023] The benefits are that standard impact balls ensure the accuracy and consistency of impact energy, making test results comparable and repeatable, which is conducive to establishing standardized testing specifications.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of an embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle; Figure 4 for Figure 3 A cross-sectional diagram of the glass test plate mounted on the central base.

[0027] Reference numerals: base 100; glass test plate 110; gantry frame 120; slot 130; movable plate 140; release hole 150; impact ball 160; threaded hole 170; bolt 180; column 190; crossbeam 200; hollow groove 210. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up; down; front; back; left; right, etc., indicating the directional or positional relationship, are based on the directional or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation; or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation; connection and linking" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following is for reference. Figures 1-4 A specific embodiment of an impact resistance testing machine for glaze coatings is described in detail below. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0033] like Figures 1-4 As shown, a glaze coating impact resistance testing machine includes a base 100; a gantry frame 120; a movable plate 140; and an impact ball.

[0034] The base 100 is used to hold the screen-printed glass test plate 110 with an enamel coating to be tested. A gantry frame 120 is fixedly installed on the base 100, and the gantry frame 120 has multiple equally spaced slots 130 along its height. A movable plate 140 is movably installed in the slots 130, and a release hole 150 is provided in the middle of the movable plate 140. An impact ball is released from the release hole 150 to fall freely and impact the enamel coating on the surface of the glass test plate 110. In practical applications, the base 100 can adopt various structural forms to achieve its function, such as a rectangular frame structure or a polygonal frame structure, its main purpose being to provide a stable support platform for the glass test plate 110. Furthermore, the base 100 can be made of metal or high-strength composite materials to meet the requirements for rigidity and stability during testing. The design of the gantry frame 120 can be achieved in various ways, such as using a single-column structure with a transverse support beam, or a double-column structure combined with a top crossbeam 200. Specifically, slot 130 is a slot for fixing movable plate 140, enabling movable plate 140 to be positioned at different heights. The main purpose of this design is to provide basic support for precise control of impact height. Furthermore, the movable plate 140 can be installed using a detachable connection method with a flat snap-fit, allowing for quick adjustment of its position according to test requirements. The shape and size of the release hole 150 can be adapted to the specific specifications of the impact ball, such as using a square, elliptical, or other regular shape hole design. Its main function is to ensure that the impact ball can be released in a fixed posture and position, thereby improving the consistency of test results. The selection of the impact ball can also be achieved in various ways, such as using a standard sphere made of stainless steel or other high-density metals, whose diameter and mass can be adjusted according to test requirements to adapt to different impact energy requirements.

[0035] The innovation of this application lies in achieving precise control of impact height and consistency of landing point positioning through modular design. Specifically, the cooperation between the equally spaced slots 130 of the gantry 120 and the movable plate 140 solves the problem of difficulty in accurately controlling the impact height during manual operation, while the design of the release hole 150 avoids landing point deviation errors that may be caused by manual operation. Thus, a standardized and repeatable impact testing device is formed, providing reliable technical support for evaluating the impact resistance performance of photovoltaic backsheet glass enamel coatings.

[0036] The working principle of this embodiment is as follows: The base 100 provides a stable placement platform for the screen-printed enamel-coated glass test plate 110 to be tested, ensuring that the position of the glass test plate 110 is fixed and not easily shifted during the test. The gantry frame 120 is fixedly installed on the base 100, and its multiple equally spaced slots 130 along the height direction are used for the installation and adjustment of the movable plate 140. By inserting the movable plate 140 into slots 130 of different heights, the release height of the impact ball can be precisely controlled, thereby realizing the quantitative adjustment of the impact energy and solving the problem of difficulty in accurately controlling the impact height during manual operation. The movable plate 140 has a release hole 150 in the middle, which serves as the positioning release point for the impact ball, ensuring that the impact ball falls freely from the same position in each test, avoiding the landing point deviation that may be caused by manual operation and improving the consistency of test results. After the impact ball falls freely from the release hole 150, it strikes the glaze coating on the surface of the glass test plate 110. Its standard mass and diameter design ensures controllability of the impact process and guarantees comparability of impact strength under different test scenarios. Furthermore, the rigid structure of the gantry 120 provides stability to the entire testing device, avoiding test errors caused by external vibration or impact. The cooperation between the movable plate 140 and the slot 130 enables convenient height adjustment, while the matching design between the release hole 150 and the impact ball ensures the accuracy of the impact process. The synergistic effect of these components forms a standardized testing system capable of accurately evaluating the critical value of the glaze coating's impact resistance, effectively solving the problems of inaccurate impact height control, inconsistent landing point positioning, and low repeatability of test results in the impact resistance testing of photovoltaic glass glaze coatings.

[0037] like Figure 3As shown, the base 100 is U-shaped, with a hollow groove 210 in the center corresponding to the release hole 150. The glass test plate 110 is placed on the hollow groove 210. Specifically, the U-shaped base 100 refers to a rectangular frame structure with a central hollow area, which can be made of metal sheet through bending or welding processes. Its purpose is to provide a stable bearing platform through the surrounding annular support surface. The hollow groove 210 is the hollow area in the center of the base 100, and its outline size should be slightly larger than the outer dimensions of the glass test plate 110 to facilitate accurate positioning of the test plate. The release hole 150 serves as the falling channel for the impact ball, and its corresponding setting with the hollow groove 210 ensures precise control of the impact point. In addition, when the U-shaped base 100 is used in conjunction with components such as the gantry frame 120 and the movable plate 140, a complete testing system is formed. The slot 130 inside the column 190 is used to adjust the height of the movable plate 140, while the hollow slot 210 ensures that the trajectory of the impact ball falling at different heights is always aligned with the center of the test plate. This design enables the entire testing device to have the ability to precisely control the impact energy.

[0038] like Figure 3 and Figure 4 As shown, the hollow groove 210 further includes threaded holes 170 on its outer periphery. These threaded holes 170 are used to install bolts 180 to secure the glass test plate 110. Specifically, the threaded holes 170 refer to positioning hole structures located on the periphery of the hollow groove 210. These holes can be machined into regularly arranged through holes to provide precise installation positions for the bolts 180. The bolts 180 are fasteners with external threads, which, when used with nuts, clamp and fix the glass test plate 110, establishing a stable constraint system. In detail, this design arranges multiple threaded holes 170 on the outer periphery of the hollow groove 210, allowing the bolts 180 to apply uniform clamping force to the glass test plate 110 from different directions. This circumferentially distributed multi-point constraint structure effectively prevents lateral displacement and rotation of the test plate under impact loads. Simultaneously, the detachable nature of the bolts 180 ensures convenient test plate installation and maintains consistency in the fixing state between different test batches through standardized tightening torques. Based on this, a stable test reference surface was established by using the threaded hole 170 and the bolt 180 together, which solved the problem of uncontrollable test plate fixation caused by manual pressing, and provided a physical basis for the accurate transmission of impact energy and the repeatable observation of coating damage morphology.

[0039] like Figure 1As shown, the gantry 120 structure of the aforementioned glaze coating impact testing machine includes columns 190 connected to both sides of the base 100; a crossbeam 200 connecting the tops of the two columns 190; and slots 130 disposed on the inner sides of the two columns 190, facing each other. Specifically, the columns 190 are structural components used to support the entire gantry 120 and provide rigid vertical support. They can be made of rectangular steel pipes or I-beams, etc., with high bending strength, to provide a stable guiding reference for the vertical movement of the movable plate 140. The crossbeam 200, as a top connector, can be fixed by welding or bolted 180 to connect the tops of the two columns 190, to enhance the overall deformation resistance of the gantry 120. The slots 130, disposed on the inner sides of the columns 190, can be achieved by machining symmetrical groove structures on the surface of the columns 190, to ensure that the movable plate 140 is symmetrically positioned between the two columns 190. These structural features, together with components such as the base 100 and the movable plate 140, effectively improve the mechanical stability and height adjustment repeatability of the testing device, providing a physical basis for the standardized evaluation of the impact resistance performance of glaze coatings.

[0040] Specifically, the height of column 190 is 1.2 meters to 1.8 meters. The height of column 190 is a key parameter used to install the gantry 120 and control the drop height of the impact ball. In practical applications, this height range is selected based on the physical characteristics required for testing the impact resistance of the glaze coating. Specifically, limiting the height of column 190 to between 1.2 meters and 1.8 meters effectively solves the problem of impact energy differences caused by the lack of standardization of column 190 height. 1.2 meters as the lower limit ensures that the impact ball has sufficient basic impact kinetic energy to test the critical breaking strength of the glaze coating; while 1.8 meters as the upper limit avoids excessive impact energy damaging the glass substrate, thus interfering with the independent evaluation of the glaze coating performance. Furthermore, this height range, combined with the standard impact ball mass, forms a quantifiable and controllable impact energy gradient, which meets both practical engineering needs and laboratory repeatability. The above technical solution, by reasonably setting the column height range of 190, not only solves the problem of comparability and accuracy of test results, but also provides a reliable basis for the accurate evaluation of the impact resistance of glaze coating.

[0041] Furthermore, slots 130 are spaced 10cm apart along the column 190. Specifically, this technical solution arranges slots 130 at fixed 10cm intervals, creating multiple selectable test points within an effective test height range of 1.2 meters to 1.8 meters. This design avoids the operational complexity caused by overly dense placement while meeting the gradient testing requirements of coatings with different strength levels. The fixed-interval slots 130, combined with scale markings, enable rapid positioning, eliminating errors caused by manual height measurement. Simultaneously, this standardized spacing design complements the overall structure of the gantry 120, allowing operators to easily adjust the position of the movable plate 140 according to actual testing needs, thereby accurately determining the impact ball's drop height and providing a reliable physical basis for establishing a quantitative evaluation system for coating impact resistance. This technical solution not only solves the problem of arbitrary height adjustment in existing manual drop ball tests but also significantly improves the repeatability and data comparability of test results, providing effective technical support for accurately assessing the critical value of the glaze coating's impact resistance strength.

[0042] Furthermore, the slot 130 is marked with graduations. Specifically, by marking the slot 130 with graduations, operators can quickly locate the slot 130 at a specified height based on the graduation values. This visual height indication effectively solves the problem of impact height deviation caused by the lack of height markings during the free fall of the impact ball. The combination of the graduation system and the slot 130 provides a precise vertical positioning reference for the installation of the movable plate 140, ensuring that the height difference of each adjustment remains consistent with the theoretical value. When it is necessary to verify the effect of different impact energies on the glaze coating, this design ensures that the lateral comparison of test data has a reliable physical basis. At the same time, by reducing visual estimation and the use of external measuring tools, the ease of operation of the entire testing process is significantly improved, and the consistency and repeatability of the test results are also enhanced.

[0043] It should be noted that, as Figure 2As shown, the movable plate 140 is square in shape. Specifically, the square movable plate 140 refers to a regular geometric shape with four right angles and equal opposite sides, which can be achieved by cutting or injection molding metal sheets. In detail, the square movable plate 140 achieves precise fitting with the slot 130 of the gantry 120 through its regular geometric shape. In actual use, the right-angled edges of the movable plate 140 can form a stable contact surface with the inner plane of the column 190. This structural feature effectively avoids tilting or rotational deviations that may occur with asymmetrical shapes. Simultaneously, the symmetry of the square structure makes it easier for the impact ball 160 to maintain uniform force in the initial contact state within the release hole 150, reducing the risk of impact energy dispersion caused by deformation or displacement of the movable plate 140. Furthermore, the square movable plate 140 can be quickly positioned by aligning its corners when installed in the slot 130, significantly reducing the cumulative error of the gap between the movable plate 140 and the column 190. These characteristics collectively improve the stability and comparability of the test data. When the square movable plate 140 is used in conjunction with components such as the base 100 and the gantry 120, the accuracy and reliability of the entire testing system can be better guaranteed.

[0044] Accordingly, the release hole 150 is circular in shape, and its diameter matches the size of the impact ball 160. Specifically, the release hole 150 refers to the channel opening used to guide the impact ball 160 to fall vertically, and it can be formed into a regular circular contour using high-precision machining. In detail, this solution ensures that the impact ball 160 falls stably in a vertical posture during release by matching the circular shape and diameter of the release hole 150 with the size of the impact ball 160. The symmetry of the circular release hole 150 avoids unintended contact between the impact ball 160 and the hole wall, reducing trajectory deviation caused by shape differences; while the design of a strict diameter match with the impact ball 160 ensures that the impact ball 160 can pass smoothly through the release hole 150, and avoids initial descent angle deviation due to excessive gap. This dual constraint mechanism effectively solves the problem of positioning consistency at the moment of impact ball 160 release, ensuring that the impact points of each test remain highly coincident, thereby improving the reliability and comparability of the impact resistance test results.

[0045] This application further proposes that the impact ball 160 uses a metal ball of standard mass and diameter. Specifically, the standard mass means that the mass of the impact ball 160 must conform to the specified value of relevant industry or national standards, which can be achieved by weighing and calibrating using a high-precision electronic scale. The standard diameter means that the diameter of the impact ball 160 must meet uniform dimensional requirements, which can be verified by measuring with precision calipers. The purpose of introducing the dual constraints of standard mass and diameter is to eliminate test errors caused by inconsistencies in the impact medium, thereby improving the repeatability and accuracy of the test results.

[0046] In the description of this specification, references to terms such as "an embodiment; some embodiments; illustrative embodiment; example; specific example or examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A glaze coating impact resistance testing machine, characterized in that, Comprising: A base (100) for placing a glass test plate (110) screen printed with a glaze coating to be tested; A gantry (120) fixedly installed on the base (100), and the gantry (120) is provided with a plurality of equally spaced slots (130) in the height direction; A movable plate (140) movably installed in the slot (130), and a release hole (150) is provided in the middle of the movable plate (140); An impact ball (160) for being released from the release hole (150) to freely fall and impact the glaze coating on the surface of the glass test plate (110).

2. The glaze coating impact resistance testing machine according to claim 1, characterized in that, The base (100) is in a shape of a rectangle with a hollow in the middle, and a hollow groove (210) corresponding to the release hole (150) is provided in the middle of the base (100), and the glass test plate (110) is placed on the hollow groove (210).

3. The glaze coating impact resistance testing machine according to claim 2, characterized in that, Threaded holes (170) are provided on the outer periphery of the hollow groove (210), and the threaded holes (170) are used for installing bolts (180) to limit and fix the glass test plate (110).

4. The glaze coating impact resistance testing machine according to claim 1, characterized in that, The gantry (120) includes columns (190) connected to both sides of the base (100); a cross beam (200) connecting the tops of the two columns (190), and the slots (130) are arranged oppositely on the inner sides of the two columns (190).

5. The glaze coating impact resistance testing machine according to claim 4, characterized in that, The height of the column (190) is 1.2 meters - 1.8 meters.

6. The glaze coating impact resistance testing machine according to claim 5, characterized in that, One slot (130) is provided at an interval of 10 cm along the column (190).

7. The glaze coating impact resistance testing machine according to claim 1, characterized in that, Scales are marked on the slot (130).

8. The glaze coating impact resistance testing machine according to claim 1, characterized in that, The shape of the movable plate (140) is square.

9. The glaze coating impact resistance testing machine according to claim 1, characterized in that, The shape of the release hole (150) is circular, and the diameter of the release hole (150) matches the size of the impact ball (160).

10. The glaze coating impact resistance testing machine according to claim 1, characterized in that, The impact ball (160) is a metal ball with a standard mass and diameter.

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