A copper foil adhesion test device

Abstract

The utility model discloses a copper foil adhesion testing arrangement belongs to the adhesion test technical field, and it is inside setting up the copper foil for testing adhesion, a plurality of fixed parts, the end of copper foil is fixed, and the top end embedded installation of test box has main electric push rod, and the moving part of main electric push rod is connected with the connecting plate, and the bottom of connecting plate is connected with a plurality of vice electric push rod, and the moving part of vice electric push rod is connected with buffer piece, and buffer piece is rotatably connected with fixed part, the assembly board of inverted U shape is rotatably connected with test box, and the inner top wall of assembly board is installed linear motor, and the moving part of linear motor is connected with triangular block, and the inclined surface of triangular block is installed a plurality of inclined electric push rod, and the moving part of inclined electric push rod is also connected with buffer piece, and this buffer piece is connected with the flattening wheel for compacting and laying even copper foil. The copper foil adhesion testing arrangement, not only can carry out different contrast test, can also adjust to the environment, satisfies different use needs.

Description

Technical Field

[0001] This utility model belongs to the field of adhesion testing technology, and in particular to a copper foil adhesion testing device. Background Technology

[0002] PP composite copper foil is a novel negative electrode material for power batteries, featuring a "sandwich" structure. The adhesion of the PP composite copper foil coating is one of its most important indicators. The primary testing method for PP composite copper foil coating adhesion is the tape test. This method involves firmly adhering test tape to the surface of the PP copper foil, ensuring the tape is airtight, and then applying tension to the tape at a specific angle. After pulling the tape off the PP copper foil, the degree of coating detachment is used to determine the adhesion strength. Traditional testing devices lack adjustment capabilities and cannot perform comparative tests.

[0003] A search revealed a Chinese patent document (authorization announcement number CN223021885U) entitled "PP Copper Foil Adhesion Testing Device," comprising a placement unit, a detection unit, a traction unit, and a display unit. The placement unit includes a support column, a bearing plate at the top of the support column, a rectangular groove at the top of the bearing plate, and a pressure plate detachably mounted above the bearing plate. A test slot, adapted to the rectangular groove, is vertically inserted into the pressure plate. The detection unit measures the peel strength of the PP copper foil coating. The traction unit... This invention replaces manual peeling of adhesive tape with automatic peeling, ensuring stability in peeling speed and force, thereby improving the accuracy and efficiency of test results. However, the aforementioned testing device lacks adjustment capabilities and cannot perform comparative tests. Utility Model Content

[0004] The purpose of this invention is to provide a copper foil adhesion testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a copper foil adhesion testing device, comprising:

[0006] The test chamber contains copper foil for testing adhesion.

[0007] Multiple fasteners are used to fix the ends of the copper foil. A main electric push rod is embedded in the top of the test box. The moving part of the main electric push rod is connected to a connecting plate. The bottom end of the connecting plate is connected to multiple auxiliary electric push rods. The moving part of the auxiliary electric push rod is connected to a buffer. The buffer is rotatably connected to the fasteners.

[0008] An inverted U-shaped assembly plate is rotatably connected to the test box. A linear motor is installed on the inner top wall of the assembly plate. A triangular block is connected to the moving part of the linear motor. Multiple tilting electric push rods are installed on the inclined surface of the triangular block. A buffer is also connected to the moving part of the tilting electric push rod. The buffer is connected to a flattening wheel for pressing and spreading copper foil.

[0009] As a preferred embodiment, the assembly plate is also connected and fixed to the test chamber by locking components, and multiple cameras for recording are installed on the inner wall of the test chamber.

[0010] As a preferred embodiment, the buffer includes:

[0011] Connector block;

[0012] Hollow board, fixedly connected to the side of the connecting block;

[0013] A movable plate is set inside the hollow plate. A pressure sensor is installed at the top of the movable plate, and a spring connects the measuring part of the pressure sensor to the connecting block.

[0014] As a preferred embodiment, the hollow plate has a threaded channel on its side, and a fixed threaded rod is threadedly connected to the threaded channel. The outer periphery of the movable plate has a round hole for the fixed threaded rod to pass through.

[0015] As a preferred embodiment, a heating chamber is installed at the top of the test chamber, and multiple heating tubes, a humidifier, a semiconductor cooling chip, a temperature sensor, and a humidity sensor are installed on the inner wall of the test chamber.

[0016] As a preferred embodiment, a fan is installed on the inner wall of the heating chamber, and the heating chamber is connected to the test chamber through multiple circulation pipes.

[0017] As a preferred embodiment, the side of the test chamber is rotatably connected to a movable door with an embedded viewing window.

[0018] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0019] This copper foil adhesion testing device uses different degrees of extension of the inclined electric push rods to achieve different degrees of compression and spreading. In the subsequent pull adhesion test, the data from the pressure sensor is used to understand the different comparative test results.

[0020] This copper foil adhesion testing device addresses the environmental changes that copper foil faces in actual use, such as temperature and humidity (e.g., the high temperature and humid environment when electronic devices are working). The device uses an "active temperature control + humidity control + circulating heating" system to accurately simulate the testing environment, making the adhesion test results more consistent with actual application scenarios.

[0021] This copper foil adhesion testing device can not only conduct different comparative tests, but also adjust the environment to meet different usage needs. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the test box of this utility model;

[0025] Figure 3 This is a cross-sectional view of the buffer component of this utility model;

[0026] Figure 4 This is a front view of the heating chamber of this utility model after the door is opened;

[0027] Figure 5 This is a left-side view of the assembly plate of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] In the picture:

[0030] 1. Test chamber; 2. Fixing component; 3. Main electric actuator; 4. Connecting plate; 5. Auxiliary electric actuator; 6. Buffer component; 7. Assembly plate; 8. Linear motor; 9. Triangular block; 10. Tilt electric actuator; 11. Flattening wheel; 12. Locking component; 13. Camera; 14. Heating chamber; 15. Heating element; 16. Humidifier; 17. Semiconductor cooling chip; 18. Fan; 19. Temperature sensor; 20. Humidity sensor; 21. Circulation pipe; 22. Movable door;

[0031] 61. Connecting block; 62. Hollow plate; 63. Movable plate; 64. Pressure sensor; 65. Spring; 66. Fixed threaded rod. Detailed Implementation

[0032] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0033] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0034] The connection method can adopt existing methods such as bonding, welding, and bolting, depending on the actual needs. Techniques, methods and equipment known to those skilled in the art may not be discussed in detail. However, where appropriate, the techniques, methods and equipment should be regarded as part of the specification. The proportions of the components in the drawings are for reference only and can be adjusted to a certain extent according to the actual use.

[0035] Please see Figures 1 to 5 As shown, a copper foil adhesion testing device, in this embodiment including:

[0036] Test chamber 1 contains copper foil for testing adhesion.

[0037] Multiple fasteners 2 are used to fix the ends of the copper foil. The fasteners 2 can be configured as pneumatic grippers (with flexible clamping pads), thermostatic fasteners (for adhesive copper foil), multi-station linkage fixtures (with central positioning pins), vacuum adsorption platforms, etc. For different copper foils, a specific fixing structure is adopted, not limited to one type. The top of the test box 1 is embedded with a main electric push rod 3. The moving part of the main electric push rod 3 is connected to a connecting plate 4. The bottom of the connecting plate 4 is connected to multiple auxiliary electric push rods 5. The moving part of the auxiliary electric push rod 5 is connected to a buffer 6. The buffer 6 is rotatably connected to the fasteners 2. The ends of the copper foil are fixed by the fasteners 2. The main electric push rod 3 is controlled to retract or different auxiliary electric push rods 5 are retracted to different degrees to pull up the copper foil, thereby realizing the test of the adhesion of the copper foil. The magnitude of the adhesion is understood from the data expressed by the pressure sensor 64 of the attached buffer 6.

[0038] An inverted U-shaped assembly plate 7 is rotatably connected to the test chamber 1. A linear motor 8 is installed on the inner top wall of the assembly plate 7. A triangular block 9 is connected to the moving part of the linear motor 8. Multiple inclined electric push rods 10 are installed on the inclined surface of the triangular block 9. A buffer 6 is also connected to the moving part of the inclined electric push rod 10. The buffer 6 is connected to a flattening wheel 11 for pressing and spreading copper foil. Different copper foils are adhered to the inner bottom wall of the test chamber 1. The extension of the multiple inclined electric push rods 10 is adjusted to different degrees, so that the flattening wheel 11 is pressed to different degrees. The pressing and spreading effect of the flattening wheel 11 can be understood from the data of the pressure sensor 64 of the attached buffer 6. The linear motor 8 is controlled to drive the triangular block 9 to move back and forth, which indirectly drives the flattening wheel 11 to move back and forth, so as to achieve different degrees of pressing and spreading of different copper foils.

[0039] The assembly plate 7 is also connected and fixed to the test box 1 by the locking member 12. The locking member 12 can be set as a high-strength latch or other fixing structure that can be quickly installed and disassembled. After pressing and spreading, the locking member 12 is opened and the assembly plate 7 is rotated to the vertical direction to eliminate the influence of the assembly plate 7 on the copper foil. Multiple cameras 13 for recording are installed on the inner wall of the test box 1.

[0040] Buffer 6 includes:

[0041] Connector block 61;

[0042] Hollow plate 62 is fixedly connected to the side of connecting block 61;

[0043] A movable plate 63 is disposed in the inner cavity of the hollow plate 62. A pressure sensor 64 is installed on the top of the movable plate 63. A spring 65 is connected between the measuring part of the pressure sensor 64 and the connecting block 61.

[0044] If buffering is not required, it can also be adjusted to a fixed mode. The side of the hollow plate 62 is provided with a threaded channel, and the threaded channel is threadedly connected to a fixed threaded rod 66. The number of fixed threaded rods 66 is not limited to one, but can be multiple in multiple directions to achieve precise fixation in multiple directions. The outer periphery of the movable plate 63 is provided with a round hole for the fixed threaded rod 66 to pass through.

[0045] For temperature control, a heating chamber 14 is installed at the top of the test chamber 1. Multiple heating tubes 15, a humidifier 16, a thermoelectric cooler 17, a temperature sensor 19, and a humidity sensor 20 are installed on the inner wall of the test chamber 1. A fan 18 is installed on the inner wall of the heating chamber 14. The heating chamber 14 is connected to the test chamber 1 through multiple circulation pipes 21. The position and data of the circulation pipes 21 are not based on the diagram. The goal is to ensure uniform temperature change. By turning on the fan 18 and adjusting the heating tubes 15 or the thermoelectric cooler 17, temperature control can be achieved to simulate different environments.

[0046] The side of the test box 1 is rotatably connected to a movable door 22 with an embedded viewing window.

[0047] The test in this application has certain limitations. It mainly focuses on vertical pulling adjustment. If there is tilting or other pulling, the connection method of the main electric push rod 3 should be changed to meet the usage requirements. The simulation and change of environment also have certain limitations, and the temperature adjustment accuracy is limited. If there are specific requirements, specific additional processing is required.

[0048] The main electric actuator 3, auxiliary electric actuator 5, linear motor 8, tilting electric actuator 10, heating tube 15, humidifier 16, semiconductor cooling chip 17, temperature sensor 19, humidity sensor 20, fan 18, and pressure sensor 64 are all conventional instruments. Their working principles, dimensions, and models are irrelevant to the function of this application, so they will not be described in detail. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. In order to facilitate the inspection, maintenance, and parts replacement of the device, the parts inside a single device are usually from the same manufacturer and of the same model, function, and batch. Therefore, even if there is a certain difference between two or more electrical control devices, the synchronous movement of the electrical control devices can still be maintained under the action of the controller. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this utility model.

[0049] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology.

[0050] Working principle

[0051] This copper foil adhesion testing device adheres different copper foils to the inner bottom wall of the test chamber 1. By adjusting the extension of multiple tilting electric push rods 10 to different degrees, the flattening roller 11 is pressed to different degrees. The pressing and flattening effect of the flattening roller 11 is understood from the data of the pressure sensor 64 of the attached buffer 6. The linear motor 8 is controlled to drive the triangular block 9 to move back and forth, which indirectly drives the flattening roller 11 to move back and forth, so as to achieve different degrees of pressing and spreading of different copper foils. Then, the locking piece 12 is opened and the assembly plate 7 is rotated to the vertical rotation to remove the influence of the assembly plate 7 on the copper foil. Before this, the fan 18 is turned on and the heating tube 15 or the semiconductor cooling chip 17 is adjusted to achieve temperature adjustment and simulate different environments.

[0052] The copper foil is fixed at the end by the fixing component 2. The main electric push rod 3 is controlled to retract or different auxiliary electric push rods 5 are retracted to different degrees to pull up the copper foil and realize the adhesion test of the copper foil. The magnitude of the adhesion is understood from the data of the pressure sensor 64 of the attached buffer component 6.

[0053] It should be noted that, in this document, relational terms such as "one" and "two" 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A copper foil adhesion testing device, characterized in that, include: Test chamber (1), with copper foil for testing adhesion inside; Multiple fasteners (2) are used to fix the ends of the copper foil. The top of the test box (1) is fitted with a main electric push rod (3). The moving part of the main electric push rod (3) is connected to a connecting plate (4). The bottom end of the connecting plate (4) is connected to multiple auxiliary electric push rods (5). The moving part of the auxiliary electric push rod (5) is connected to a buffer (6). The buffer (6) is rotatably connected to the fasteners (2). An inverted U-shaped assembly plate (7) is rotatably connected to the test box (1). A linear motor (8) is installed on the inner top wall of the assembly plate (7). A triangular block (9) is connected to the moving part of the linear motor (8). Multiple inclined electric push rods (10) are installed on the inclined surface of the triangular block (9). A buffer (6) is also connected to the moving part of the inclined electric push rod (10). The buffer (6) is connected to a flattening wheel (11) for pressing and spreading copper foil.

2. The copper foil adhesion testing device according to claim 1, characterized in that, The assembly plate (7) is also connected and fixed to the test box (1) by a locking member (12), and the inner wall of the test box (1) is equipped with multiple cameras (13) for recording.

3. The copper foil adhesion testing device according to claim 1, characterized in that, The buffer (6) includes: Connector block (61); Hollow plate (62) is fixedly connected to the side of connecting block (61); A movable plate (63) is disposed in the inner cavity of the hollow plate (62). A pressure sensor (64) is installed on the top of the movable plate (63). A spring (65) is connected between the measuring part of the pressure sensor (64) and the connecting block (61).

4. The copper foil adhesion testing device according to claim 3, characterized in that, The hollow plate (62) has a threaded channel on its side, and a fixed threaded rod (66) is threadedly connected to the threaded channel. The movable plate (63) has a round hole on its outer periphery for the fixed threaded rod (66) to pass through.

5. The copper foil adhesion testing device according to claim 1, characterized in that, The test chamber (1) is equipped with a heating chamber (14) at the top and multiple heating tubes (15), a humidifier (16), a semiconductor cooling chip (17), a temperature sensor (19), and a humidity sensor (20) are installed on the inner wall of the test chamber (1).

6. The copper foil adhesion testing device according to claim 5, characterized in that, A fan (18) is installed on the inner wall of the heating box (14), and the heating box (14) is connected to the test box (1) through multiple circulation pipes (21).

7. The copper foil adhesion testing device according to claim 5, characterized in that, The test box (1) has a movable door (22) with an embedded viewing window rotatably connected to its side.

Images