Sample preparation tool for testing peel strength of back plate and adhesive film

Abstract

The utility model discloses a back plate and adhesive film peel strength inspection sample preparation tool, which relates to the technical field of back plate and adhesive film material inspection, and comprises a cutting table, a sample placing area is arranged on the upper surface of the cutting table, and pressing blocks for pressing a sample from the upper part of the edge are respectively arranged on two adjacent sides of the sample placing area; the pressing block is installed on the cutting table in a height-adjustable mode through at least two pressing nuts, a linear sliding rail is further arranged on at least one side of the sample containing area, a sliding piece slides on the linear sliding rail, the side, facing the sample containing area, of the sliding piece is connected with a connecting plate extending to the position above the sample containing area, and a tool apron is fixedly connected to the connecting plate. A plurality of tungsten steel blades are detachably installed on the tool apron and arranged in a row at equal intervals in the transverse direction, and tool bits face downwards to make contact with samples. According to the utility model, the linear sliding rail ensures that the blade slides out and is pulled out linearly, the accuracy of the sliding cutting size of a sample is ensured, and the sample can be quickly pressed and released by the pressing block, so that the sample preparation efficiency can be improved on the premise of ensuring the sample preparation quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of inspection of backplane and adhesive film materials, and particularly relates to a sample preparation tooling for inspecting the peeling strength of a backplane and an adhesive film. Background Art

[0002] During the production process of photovoltaic modules, in order to ensure the performance stability of the cells inside the modules, it is necessary to lay a backplane and an adhesive film during the processing of photovoltaic modules to achieve the encapsulation of the semi-finished module after lamination. In the actual processing process, since the backplane and the adhesive film are encapsulated in the internal structure of the module, it is necessary to conduct a peeling strength test on the backplane and the adhesive film. The peeling strength test of the backplane and the adhesive film is crucial for evaluating the durability and reliability of solar cell modules. The peeling strength test simulates the possible separation phenomenon between the backplane and the adhesive film under long-term use and harsh environmental conditions. Through this test, it can be ensured that there is sufficient bonding strength between the backplane and the adhesive film to resist climate change and mechanical stress, thereby ensuring the performance and life of the solar panel.

[0003] When conducting the peeling strength inspection of the backplane and the adhesive film, special sample preparation tools and testing equipment are required. The sample preparation tools of the prior art have a complex structure and poor sample preparation effect, and cannot meet the inspection requirements of high frequency and high efficiency. There is an urgent need for a sample preparation tooling for inspecting the peeling strength of a backplane and an adhesive film to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sample preparation tooling for inspecting the peeling strength of a backplane and an adhesive film to solve the above technical problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides the following scheme: A sample preparation tooling for inspecting the peeling strength of a backplane and an adhesive film, including a cutting table. A sample placement area is provided on the upper surface of the cutting table. Pressing blocks for pressing the sample from above the edge of the sample are respectively provided on two adjacent sides of the sample placement area. The pressing blocks are installed above the cutting table with adjustable height through at least two pressing nuts. At least one side of the sample placement area is also provided with a linear slide rail. A sliding member slides on the linear slide rail. One side of the sliding member facing the sample placement area is connected with a connecting plate extending above the sample placement area. A tool holder is fixedly connected to the connecting plate. A plurality of tungsten carbide blades are detachably installed on the tool holder. The plurality of tungsten carbide blades are arranged in a row at equal intervals in the transverse direction, and the cutting edges face downwards and contact the sample.

[0006] Preferably, a plurality of guide posts are fixedly connected to the cutting table below the pressing block. A return spring is sleeved outside each guide post. A guide hole matching the guide post is opened on the pressing block. The pressing block is slidably matched with the guide post in the vertical direction, and the return spring supports the bottom of the pressing block.

[0007] Preferably, two edge bosses bulge upward at the two edges of the cutting table at the longitudinal two ends of the sample placement area. Both ends of the linear slide rail are fixedly connected to the two edge bosses, and a gap for the sample to pass through is left between the middle lower part of the linear slide rail and the cutting table.

[0008] Preferably, a limit bolt for preventing the sliding member from sliding out is installed above the edge boss near the end of the linear slide rail.

[0009] Preferably, one of the pressing blocks is fixedly connected to the edge boss on one side, and a tool bit entry channel for the tungsten carbide blade to enter is formed on the edge boss on the other side.

[0010] Preferably, the tungsten carbide blade is detachably installed on one side of the tool holder facing the tool bit entry channel through a blade fixing screw.

[0011] Preferably, elastic bases are connected to the four corner positions at the bottom of the cutting table.

[0012] Preferably, anti-slip suction cups are provided at the bottom of the elastic bases.

[0013] Preferably, the sliding member is connected to an electric driving device.

[0014] Preferably, a push-pull handle for hand-holding is installed at the top of the tool holder.

[0015] The present utility model discloses the following technical effects:

[0016] In the present utility model, the sample (back plate) is pressed tightly on the cutting table by two pressing blocks. A linear slide rail for guiding the sliding of the tool holder is arranged on one side of the sample. A plurality of tungsten carbide blades are installed on one side of the tool holder. By pushing or mechanically driving the tool holder to move along the length direction of the linear slide rail, the required sample parts can be cut on the sample. The present utility model ensures that the blade slides out and pulls out in a straight line through the linear slide rail, guarantees the accuracy of the sample cutting size, and the pressing block can quickly press and release the sample, and can improve the sample preparation efficiency on the premise of ensuring the sample preparation quality. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is the front view of the tooling in the embodiment of the present utility model;

[0019] Figure 2 For Figure 1Cross-sectional view taken along line A-A;

[0020] Figure 3 Right view of the tooling in the embodiment of the present utility model;

[0021] Figure 4 Top view of the tooling in the embodiment of the present utility model;

[0022] Figure 5 Axonometric view of the tooling in the embodiment of the present utility model;

[0023] Figure 6 is Figure 5 Enlarged partial view at position B in;

[0024] Figure 7 Front view of the tooling in the embodiment of the present utility model when the second pressing block is separated from the cutting table;

[0025] Figure 8 Axonometric view of the tooling in the embodiment of the present utility model when the second pressing block is separated from the cutting table;

[0026] Figure 9 Reference working state diagram of the tooling in the embodiment of the present utility model.

[0027] In the figure: 1. Cutting table; 2. Sample placement area; 3. Tool holder; 4. Connecting plate; 5. Linear slide rail; 6. First pressing block; 7. Second pressing block; 8. Elastic base; 9. Compression nut; 10. Guide post; 11. Rebound spring; 12. Push-pull handle; 13. Tungsten carbide blade; 14. Limit bolt; 15. Blade fixing screw; 16. Knife entry channel; 17. Sample. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0030] Refer to Figures 1 to 9As shown in the figure, the utility model provides a sample preparation tool for inspecting the peeling strength between a backplane and a glue film, which is used for making sample 17. It includes a cutting table 1, a sample placement area 2 located on the upper surface of the cutting table 1 for placing and fixing sample 17. On the adjacent two side edges of the sample placement area 2 (i.e., one long side edge and one short side edge, for the convenience of description, the long side is taken as the longitudinal direction and the short side is taken as the transverse direction), a first pressing block 6 and a second pressing block 7 are respectively arranged. The first pressing block 6 and the second pressing block 7 are used to press sample 17 from above the edge of sample 17 to play a role of fixing and clamping. The two side edges (transverse edges) of the cutting table 1 are higher than the sample placement area 2 by a certain height, having edge bosses. A longitudinal linear slide rail 5 is vertically fixedly connected between the two edge bosses. Since the two edge bosses are higher than the sample placement area 2, there is a gap between the linear slide rail 5 and the sample placement area 2, and this gap can accommodate sample 17 to be put in, so that the linear slide rail 5 does not affect the putting in and taking out of sample 17. A sliding member is slidably connected to the linear slide rail 5, and a connecting plate 4 is fixedly connected above the sliding member. The connecting plate 4 extends towards the middle of the sample placement area 2 (transversely extends) and is connected to a tool holder 3. A plurality of tungsten carbide blades 13 are detachably installed on the tool holder 3. The plurality of tungsten carbide blades 13 are arranged in a row at equal intervals in the transverse direction, and the cutting edges face downwards and contact the surface of sample 17. The tool holder 3 reciprocates longitudinally along the length direction of the linear slide rail 5, that is, longitudinally, to cut out a test sample including multiple longitudinal cuts on the surface of sample 17, such as Figure 9 as shown.

[0031] In a further optimized solution, elastic bases 8 are connected to the four corner positions at the bottom of the cutting table 1. The elastic bases 8 are made of polyurethane material and have a certain elasticity, which can play a role of anti-slip and shock absorption, facilitating fixation, so as to avoid unnecessary displacement of the cutting table 1 when the tool holder 3 is pushed to cut sample 17.

[0032] In a further optimized solution, both the first pressing block 6 and the second pressing block 7 are pressing blocks with a certain length and are connected to the cutting table 1 through at least two tightening nuts 9. By rotating the tightening nuts 9, the pressing height between the two pressing blocks and the cutting table 1 can be adjusted. At the same time, when sample 17 is clamped, sample 17 is fixed by tightening the tightening nuts 9.

[0033] In a further optimized solution, a plurality of guide posts 10 are also arranged at the positions where the cutting table 1 is connected to the first pressing block 6 and the second pressing block 7. The guide posts 10 are perpendicular to the cutting table 1 and penetrate through the first pressing block 6 and the second pressing block 7 to form a guide in the up and down direction for the first pressing block 6 and the second pressing block 7. And a return spring 11 is sleeved on the guide posts 10. One end of the return spring 11 is fixedly connected to the bottom of the first pressing block 6 and the second pressing block 7 to form an elastic support for the first pressing block 6 and the second pressing block 7. When the tightening nuts 9 are loosened, the two pressing blocks can quickly bounce upwards to facilitate the clamping of sample 17.

[0034] For a further optimized solution, the linear slide rail 5 is installed on the convex platforms at the two edges of the cutting table 1 by screws. The first pressing block 6 is located on one of the edge convex platforms and can form a longitudinal limit for the tool holder 3. To prevent the tool holder 3 from sliding out from the other edge, a limit bolt 14 is installed on the other edge convex platform. The limit bolt 14 forms a limit for the slider from one end of the linear slide rail 5 to prevent the slider from sliding out from this end of the linear slide rail 5.

[0035] For a further optimized solution, anti-slip suction cups are provided at the bottom of the elastic base 8, which can form a better fixing effect.

[0036] For a further optimized solution, on the convex platform at the edge of the cutting table 1 where the limit bolt 14 is connected, knife entry channels 16 corresponding to each tungsten carbide blade 13 are opened, specifically sunken grooves opened on the upper surface of the convex platform at the edge of the cutting table 1. When the tool holder 3 slides to this edge, the knife entry channels 16 can accommodate the tungsten carbide blades 13 to enter, facilitating the entry of the tungsten carbide blades 13 from one side of the sample 17 when slicing the sample 17.

[0037] For a further optimized solution, the tungsten carbide blades 13 are detachably installed on one side of the tool holder 3 through blade fixing screws 15. Specifically, several slots for inserting the tungsten carbide blades 13 are opened on one side of the tool holder 3, and fixing screws are installed through the slots in the tool holder 3. The tails of the tungsten carbide blades 13 are perforated. First, insert each tungsten carbide blade 13 into the slot, then pass the fixing screw through each tungsten carbide blade 13 and the slot, and finally fasten the fixing screw with a nut.

[0038] In some embodiments, the sliding member can be a slider. Since the slider has no power drive and the movement of the tool holder 3 needs to be manually controlled, a push-pull handle 12 is installed above the tool holder 3 at this time for convenient control.

[0039] In this embodiment, the linear slide rail 5 and the second pressing block 7 are arranged on the same side of the sample placement area 2. It should be understood that the linear slide rail 5 can also be arranged on the opposite side of the second pressing block 7.

[0040] It should be understood that in practical applications, the sliding member can also be connected to an electric drive device capable of realizing linear motion function / rotary motion / reciprocating motion. Exemplarily, it can be a servo motor, an electric cylinder, etc. By setting the electric drive sliding device, automatic sample preparation can be realized, reducing the difficulty of manual operation.

[0041] The details not elaborated in the present utility model are conventional technical means well known to those skilled in the art.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0043] The embodiments described above are only descriptions of the preferred modes of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A sample preparation tool for testing the peel strength between a backplane and a glue film, characterized in that It includes a cutting table (1), on the upper surface of the cutting table (1) there is a sample placement area (2). On the two adjacent sides of the sample placement area (2), there are respectively pressing blocks for pressing the sample (17) from above the edge of the sample (17). The pressing blocks are installed above the cutting table (1) in a height-adjustable manner through at least two pressing nuts (9). On at least one side of the sample placement area (2), there is also a linear slide rail (5). A sliding member slides on the linear slide rail (5). On the side of the sliding member facing the sample placement area (2), there is a connecting plate (4) extending above the sample placement area (2). A tool holder (3) is fixedly connected to the connecting plate (4). A number of tungsten carbide blades (13) are detachably installed on the tool holder (3). The number of tungsten carbide blades (13) are arranged in a row at equal intervals in the transverse direction, and the cutting edges face downwards and contact the sample (17).

2. The sample preparation tooling for testing the peel strength between the backplane and the adhesive film according to claim 1, wherein On the cutting table (1) below the pressing block, a plurality of guide posts (10) are fixedly connected. A return spring (11) is sleeved outside each guide post (10). The pressing block is provided with guide holes matching the guide posts (10). The pressing block is slidably matched with the guide posts (10) in the vertical direction, and the return spring (11) supports on the bottom of the pressing block.

3. The sample preparation tooling for testing the peel strength between the backplane and the adhesive film according to claim 1, characterized in that At the two longitudinal ends of the sample placement area (2), two edge bosses protrude upwards from the two edges of the cutting table (1). The two ends of the linear slide rail (5) are fixedly connected to the two edge bosses. A gap for the sample (17) to pass through is left between the middle part below the linear slide rail (5) and the cutting table (1).

4. The sample preparation tooling for testing the peel strength of the backplane and the adhesive film according to claim 3, characterized in that, A limit bolt (14) for preventing the sliding member from sliding out is installed above the edge boss near the end of the linear slide rail (5).

5. The sample preparation tool for inspecting the peel strength between the backplane and the adhesive film according to claim 3, characterized in that, One of the pressing blocks is fixedly connected to the edge boss on one side, and an incoming knife channel (16) for the tungsten carbide blade (13) to enter is opened on the edge boss on the other side.

6. The sample preparation tool for inspecting the peel strength between the backplane and the adhesive film according to claim 5, characterized in that, The tungsten carbide blade (13) is detachably installed on the side of the tool holder (3) facing the incoming knife channel (16) through a blade fixing screw (15).

7. The sample preparation tool for testing the peeling strength of the backplane and the adhesive film according to any one of claims 1 to 6, characterized in that At the four corner positions at the bottom of the cutting table (1), elastic bases (8) are connected.

8. The sample preparation tooling for testing the peel strength between the backplane and the adhesive film according to claim 7, characterized in that, Anti-slip suction cups are provided at the bottom of the elastic bases (8).

9. The sample preparation tool for testing the peel strength between the backplane and the adhesive film according to claim 1, wherein The sliding member is connected to an electric drive device.

10. The sample preparation tooling for testing the peeling strength between the backplane and the adhesive film according to claim 1, characterized in that, A push-pull handle (12) for hand-holding is installed on the top of the tool holder (3).

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