Copper foil coating binding force testing device

Abstract

The utility model provides a copper foil coating binding force testing device. The copper foil coating binding force testing device comprises a testing platform, a weight block, a driving mechanism and a pressing mechanism, the test platform is used for placing a to-be-tested copper foil. The weight block is placed on the test platform, and a wiping piece is arranged at the bottom of the weight block. The driving mechanism is used for driving the weight block to move in the first direction. The driving mechanism comprises a motor, a rope winding wheel and a pull rope. The first end of the pull rope is fixedly connected with the weight block, and the second end is fixedly connected with the rope winding wheel; a rotating shaft of the motor is connected with the rope winding wheel. The pressing mechanism is located on the upper portion of the testing platform and is configured to press the copper foil to be tested so as to prevent the copper foil to be tested from sliding. The copper foil coating binding force testing device is used for testing the coating binding force, the wiping pressure, the wiping area, the wiping distance and the wiping speed can be quantified and controlled, personal errors are avoided, and automation and quantification of coating binding force detection are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to calendered copper foil plating layer detection technical field, in particular to a copper foil plating layer adhesion testing device. BACKGROUND

[0002] Calendered copper foil is usually used in the field of flexible copper-clad plate, etc. Since the surface roughness of calendered copper foil bare foil is low, it needs to be roughened and solidified, and then a red treatment foil with higher roughness is obtained. In application fields with high requirements for corrosion resistance and light absorption, blackening treatment needs to be carried out on the basis of the red treatment foil to obtain a blackening treatment foil. The plating layer adhesion is crucial to the calendered copper foil. Good plating layer adhesion can ensure that the plating layer is tightly attached to the surface of the calendered copper foil, thereby improving its corrosion resistance and oxidation resistance and prolonging the service life of the calendered copper foil. On the contrary, if the plating layer adhesion is poor, the plating layer is easy to fall off or crack, which not only reduces the protective performance of the calendered copper foil, but also affects its conductivity and overall quality, thereby adversely affecting the performance and reliability of electronic products. Therefore, in order to prevent the plating layer from falling off or cracking during use and thus protect the overall performance, reliability and service life of the product, it is usually necessary to test the plating layer adhesion of the calendered copper foil.

[0003] At present, the method for detecting the plating layer adhesion of copper foil is artificial wiping, that is, the surface of the copper foil is directly wiped by non-woven fabric, dust-free paper or the like, and the degree of plating layer falling off is observed. However, this method has large human error, so the fluctuation of the plating layer adhesion cannot be quantified during process research and production control, which hinders the process research and production control. SUMMARY

[0004] In view of the above problems, the utility model is proposed to provide a copper foil plating layer adhesion testing device to overcome the above problems or at least partially solve the above problems, so as to solve the problem that the existing copper foil plating layer adhesion detection cannot be accurately quantified.

[0005] Specifically, the utility model provides a copper foil plating layer adhesion testing device, which comprises:

[0006] A test platform for placing a copper foil to be tested;

[0007] A heavy block placed on the test platform, the bottom of the heavy block being provided with a wiping member;

[0008] A driving mechanism for driving the heavy block to move in a first direction, the driving mechanism comprising a motor, a rope winding wheel and a pull rope, the first end of the pull rope being fixedly connected with the heavy block, the second end being fixedly connected with the rope winding wheel, and the rotating shaft of the motor being connected with the rope winding wheel;

[0009] A pressing mechanism is arranged on the upper portion of the test platform, and is configured to press the copper foil to be tested.

[0010] Optionally, the pressing mechanism comprises two first pressing blocks, and the two first pressing blocks are arranged in the first direction.

[0011] The pressing mechanism is further configured to limit the moving stroke of the weight block in the first direction.

[0012] Optionally, the first end of the pull rope is connected to the weight block at a position equal to or lower than the center of gravity of the weight block.

[0013] Optionally, the cross section of the weight block is tapered from bottom to top.

[0014] Optionally, the weight block is sleeved with a sleeve, and the pull rope is fixedly connected to the weight block through the sleeve.

[0015] Optionally, each first pressing block is provided with a first outward turning edge at both ends in a second direction perpendicular to the first direction.

[0016] The first outward turning edge and the test platform are connected by a first bolt, each first outward turning edge is provided with a first threaded hole, the test platform is provided with a second threaded hole, and the first bolt, the second threaded hole and the first threaded hole are arranged one by one.

[0017] Optionally, the motor is configured to stop working when the weight block contacts the first pressing block close to the side of the motor.

[0018] The pressing mechanism further comprises two second pressing blocks, and the two second pressing blocks are arranged in a second direction perpendicular to the first direction.

[0019] Each second pressing block extends in the first direction, and the two pressing blocks form a limiting channel extending in the first direction to prevent the weight block from deviating during movement in the first direction.

[0020] Optionally, each second pressing block is provided with a second outward turning edge on the side away from the weight block, the second outward turning edge and the test platform are connected by a second bolt, each second outward turning edge is provided with a third threaded hole, the test platform is provided with a fourth threaded hole, and the second bolt, the fourth threaded hole and the third threaded hole are arranged one by one.

[0021] Optionally, the bottom edge of the weight block is a rounded structure.

[0022] Optionally, the wiping member is a dust-free cloth or a non-woven cloth or a dust-free paper.

[0023] A top of the weight block is provided with a handle.

[0024] The copper foil plating layer bonding force testing device, which adopts the testing device to test the plating layer bonding force, can quantize and control the wiping pressure, area, distance and speed, avoids human errors, and realizes the automation and quantization of plating layer bonding force detection. Compared with the existing manual wiping, the device can more accurately evaluate the strength of the plating layer bonding force, is helpful for data analysis in the process research and development and quality control in production control, thereby accelerating the process optimization and improving the production efficiency.

[0025] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, which are exemplary and not limiting. The same reference signs in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0027] Figure 1 is a schematic structural view of a copper foil plating layer bonding force testing device according to an embodiment of the present application (the motor is not shown in the figure);

[0028] Figure 2 is a schematic structural view of a weight block, a pressing mechanism and a testing platform of a copper foil plating layer bonding force testing device according to an embodiment of the present application;

[0029] Figure 3 is a schematic structural view of a weight block, a pressing mechanism and a testing platform of a copper foil plating layer bonding force testing device according to an embodiment of the present application;

[0030] Figure 4 is a schematic sectional view of a testing platform and a first pressing block of a copper foil plating layer bonding force testing device according to an embodiment of the present application;

[0031] Figure 5 is a schematic structural view of a rope winding wheel and a pull rope of a copper foil plating layer bonding force testing device according to an embodiment of the present application;

[0032] Figure 6 is a schematic side view of a second pressing block of a copper foil plating layer bonding force testing device according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The following reference Figures 1 to 6 This invention describes a copper foil plating adhesion testing device according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0034] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the 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.

[0037] Figure 1is a schematic structural view of the copper foil plating layer bonding force testing device 100 according to an embodiment of the present application, as shown in Figure 1 and referring to Figures 2 to 6 The embodiment of the present application provides a copper foil plating layer bonding force testing device 100, which comprises a test platform 110, a heavy block 120, a driving mechanism and a pressing mechanism 130.

[0038] The test platform 110 is used for placing the copper foil 200 to be tested. The heavy block 120 is placed on the test platform 110, and the bottom of the heavy block 120 is provided with a wiping member 140. The driving mechanism is used for driving the heavy block 120 to move in a first direction; the driving mechanism comprises a motor 151, a winding rope wheel 152 and a pull rope 153. The first end of the pull rope 153 is fixedly connected with the heavy block 120, and the second end is fixedly connected with the winding rope wheel 152; the rotating shaft of the motor 151 is connected with the winding rope wheel 152. The pressing mechanism 130 is located at the upper part of the test platform 110, and the pressing mechanism 130 is configured to press the copper foil 200 to be tested, so as to prevent the copper foil 200 to be tested from sliding.

[0039] In the embodiment, when the copper foil plating layer bonding force testing device 100 works, the copper foil 200 to be tested is first placed on the test platform 110. Then, the copper foil is pressed by the pressing mechanism 130 to prevent it from sliding during the test. Next, the driving mechanism is started, the motor 151 drives the winding rope wheel 152 to rotate, and then the pull rope 153 fixedly connected with the heavy block 120 is pulled, so that the heavy block 120 moves in the first direction. The wiping member 140 at the bottom of the heavy block 120 contacts and wipes the plating layer on the surface of the copper foil during the process. By observing the degree of plating layer falling off on the surface of the copper foil after wiping, the bonding force of the plating layer can be evaluated. The whole test process is automatic, which reduces the interference of human factors and improves the accuracy and reliability of the test.

[0040] Compared with the existing manual wiping method, the copper foil plating layer bonding force testing device 100 of the embodiment can quantify and control the wiping pressure, area, distance and speed, avoid human error, realize the automation and quantification of the plating layer bonding force detection. The device can more accurately evaluate the strength of the plating layer bonding force, which is helpful for data analysis in the process research and development process and quality control in production control, so as to accelerate the process optimization and improve the production efficiency.

[0041] That is, by using the copper foil plating adhesion test device 100 of the present embodiment to conduct tests, the fluctuations in plating adhesion can be more accurately quantified, providing reliable data support for process research and development and production control. This not only improves the accuracy of the test, but also speeds up the process development process and enhances the effectiveness of production control. The "fluctuations" in plating adhesion refer to the degree of change in the adhesion between the plating layer and the substrate of the rolled copper foil product under different production batches or different conditions. By using a mechanized test device, the conditions and force of each test can be kept consistent, allowing for more accurate measurement of the actual value of the plating adhesion and more sensitive reflection of small changes in the plating adhesion, i.e., "fluctuations."

[0042] As shown in Figure 2 and Figure 3 In some optional embodiments of the present application, the pressing mechanism 130 includes two first pressing blocks 131, which are spaced apart along the first direction. The pressing mechanism 130 is also configured to limit the movement stroke of the weight block 120 in the first direction.

[0043] In the present embodiment, during the test, the two first pressing blocks 131 press the copper foil 200 to be tested from both sides of the first direction, ensuring that it remains fixed during the test. At the same time, the two first pressing blocks 131 also limit the stroke range of the weight block 120 moving in the first direction under the action of the driving mechanism.

[0044] The present embodiment, by providing two first pressing blocks 131 spaced apart along the first direction, not only achieves effective pressing of the copper foil 200 to be tested, preventing it from sliding or bending during the test, but also ingeniously limits the movement stroke of the weight block 120 in the first direction, ensuring the accuracy and safety of the test. The present embodiment further improves the stability and controllability of the test device, making the plating adhesion test process more standardized and standardized.

[0045] Further, the motor 151 is also configured to stop working when the weight block 120 contacts the first pressing block 131 near the side of the motor 151. The motor 151 stops working when the weight block 120 contacts the pressing block, which can ensure that the stroke of each test is consistent, thereby improving the accuracy and repeatability of the test.

[0046] In some optional embodiments of the present application, the first end of the pull rope 153 is connected to the weight block 120 at a position equal to or lower than the center of gravity of the weight block 120. Specifically, the first end of the pull rope 153 is arranged at a middle or lower position of the weight block 120.

[0047] In this embodiment, the connection position of the pull rope 153 with the weight block 120 is not higher than the center of gravity position of the weight block 120. This design makes the weight block 120 more stable during movement, reducing the risk of shaking or tilting, thereby ensuring the uniformity and consistency of the contact between the wiping member 140 and the surface of the copper foil 200 under test. This stability not only improves the accuracy of the test, but also helps to reduce errors and uncertainties during the test process. In addition, stable movement also helps to protect the testing device from unnecessary wear and tear, prolonging the service life of the device. Therefore, this embodiment further improves the stability and test accuracy of the copper foil coating adhesion test device 100 by optimizing the connection position of the pull rope 153 with the weight block 120, providing more reliable data support for process research and production control.

[0048] In some optional embodiments of the present application, the weight block 120 has a rectangular or cylindrical structure.

[0049] As shown in Figure 1 In some optional embodiments of the present application, the cross section of the weight block 120 is tapered from bottom to top. That is, the bottom of the weight block 120 is wider, while the top is narrower, and the cross-sectional area gradually decreases from the bottom to the top. Through the above design, the center of gravity of the weight block 120 can be reduced, thereby avoiding the tilting of the weight block 120 (i.e. the load) during movement due to the high center of gravity, thereby further improving the accuracy and reliability of the test.

[0050] In some optional embodiments of the present application, the pull rope 153 is directly tied to the weight block 120 to achieve fixed connection between the pull rope 153 and the weight block 120.

[0051] As shown in Figure 1 In some optional embodiments of the present application, the weight block 120 is provided with a sleeve 170, and the pull rope 153 is fixedly connected with the weight block 120 through the sleeve 170. Specifically, the sleeve 170 is sleeved on the outer peripheral wall of the weight block 120, and the first end of the pull rope 153 is fixedly connected with the sleeve 170. In this embodiment, the provision of the sleeve 170 increases the connection area between the pull rope 153 and the weight block 120, making the connection more stable and reducing the risk of disconnection or sliding between the pull rope 153 and the weight block 120 during the test, thereby improving the reliability and safety of the test.

[0052] In some optional embodiments of the present application, the first pressing block 131 is placed on the test platform 110.

[0053] As shown in Figures 2 to 4As shown in some optional embodiments of the utility model, two ends of the second direction of each first compression block 131 are provided with first outer flanges 1311, and the second direction is perpendicular to the first direction. The first outer flanges 1311 and the test platform 110 are connected through first bolts 133, and each first outer flange 1311 is provided with a first threaded hole, and the test platform 110 is provided with a second threaded hole, and the first bolt 133, the second threaded hole and the first threaded hole are arranged one by one.

[0054] Specifically, the size of the to-be-tested rolled copper foil in the second direction is less than the interval between the two first outer flanges 1311 of the first compression block 131.

[0055] In the embodiment, two ends of the second direction of each first compression block 131 are provided with first outer flanges 1311, and the first outer flanges 1311 and the test platform 110 are stably connected through first bolts 133. Thus, the compression block is more stable during the test and is not easy to loosen or displace, thereby ensuring the accuracy and reliability of the test. In addition, the cooperation of the first outer flanges 1311 and the first bolts 133 facilitates the installation, disassembly and debugging of the compression block.

[0056] As shown in some optional embodiments of the utility model, Figure 2 and Figure 3 The compression mechanism 130 further comprises two second compression blocks 132, and the two second compression blocks 132 are arranged at intervals along the second direction, and the second direction is perpendicular to the first direction. Each second compression block 132 extends along the first direction, and a limiting channel extending along the first direction is formed between the two compression blocks to prevent the heavy block 120 from deviating during movement along the first direction. In the embodiment, by additionally arranging two second compression blocks 132 arranged at intervals along the second direction, not only can the sliding of the rolled copper foil be further prevented, but also the stability of the heavy block 120 during movement along the first direction can be improved, and deviation of the heavy block 120 can be prevented. Thus, the test accuracy of the test device is further improved.

[0057] As shown in some optional embodiments of the utility model, Figure 3 and Figure 6 A second outer flange 1321 is arranged on the side of each second compression block 132 away from the heavy block, and the second outer flange 1321 and the test platform 110 are connected through a second bolt 134. Each second outer flange 1321 is provided with a third threaded hole, and the test platform 110 is provided with a fourth threaded hole, and the second bolt 134, the fourth threaded hole and the third threaded hole are arranged one by one. Through the above arrangement, the second compression block 132 and the test platform 110 can be firmly connected, thereby preventing the second compression block 132 from moving during the test.

[0058] As shown in some optional embodiments of the utility model, Figure 1As shown, in some optional embodiments of this utility model, the bottom edge of the weight block 120 has a rounded corner structure. This design reduces potential damage to the surface of the copper foil 200 under test caused by the bottom edge of the weight block 120, avoids scratches or plating peeling caused by sharp edges, helps protect the sample under test, and ensures the reliability of the test results.

[0059] In some optional embodiments of this utility model, the bottom cross-section of the weight block 120 is circular, with a diameter of 10cm to 50cm; the height of the weight block 120 is 10cm to 30cm. Specifically, those skilled in the art can select and adjust the specific dimensions of the weight block 120 according to the testing requirements.

[0060] Furthermore, the sleeve 170 is a steel sleeve with a top diameter of 12cm and a bottom diameter of 14cm.

[0061] In some optional embodiments of this utility model, the wiping member 140 is a lint-free cloth, non-woven fabric, or lint-free paper. The wiping member 140 is attached to the bottom surface of the weight block 120.

[0062] like Figure 1 As shown, in some optional embodiments of this invention, a handle 160 is provided on the top of the weight block 120. The handle 160 provides an intuitive and easy-to-grip part, allowing the operator to easily move or adjust the position of the weight block 120, simplifying the operation of the testing device. Furthermore, when the weight block 120 needs to be moved manually, the handle provides a safe grip point, reducing the risk of accidental injury, such as crushing, that may be caused by the operator directly touching the weight block 120.

[0063] In some optional embodiments of this utility model, the bottom of the test platform 110 is also provided with a support frame.

[0064] In some optional embodiments of this utility model, the pull rope 153 is one of hemp rope, nylon rope, steel rope or other ropes with low elasticity that are easy to be rolled up.

[0065] like Figure 5 As shown, in some optional embodiments of this utility model, a winding groove 1521 is formed on the outer periphery of the winding wheel 152. The winding wheel 152 can be directly fixed to the output shaft of the motor 151, or the two can be connected by gear transmission.

[0066] Up to now, the person skilled in the art should recognize that, although the multiple exemplary embodiments of the utility model have been shown and described in detail herein, many other variants or modifications conforming to the principles of the utility model can still be directly determined or deduced according to the content disclosed by the utility model without departing from the spirit and scope of the utility model. Therefore, the scope of the utility model should be understood and recognized as covering all these other variants or modifications.

Claims

1. A copper foil plating adhesion test device characterized by comprising: The utility model relates to a copper foil plating adhesion force testing device, including: a test platform for placing a copper foil to be tested; a weight block placed on the test platform, the bottom of the weight block being provided with a wiping member; a driving mechanism for driving the weight block to move in a first direction, the driving mechanism including a motor, a winding pulley and a pull rope, the first end of the pull rope being fixedly connected with the weight block, the second end of the pull rope being fixedly connected with the winding pulley, the rotating shaft of the motor being connected with the winding pulley; a pressing mechanism located at the upper part of the test platform, the pressing mechanism being configured to press the copper foil to be tested.

2. The copper foil plating adhesion force testing device according to claim 1, wherein: the pressing mechanism includes two first pressing blocks, the two first pressing blocks being spaced apart in the first direction; the pressing mechanism is further configured to limit the movement stroke of the weight block in the first direction.

3. The copper foil plating adhesion force testing device according to claim 1, wherein: the first end of the pull rope is connected with the weight block at a position equal to or lower than the center of gravity of the weight block.

4. The copper foil plating adhesion force testing device according to claim 1, wherein: the cross section of the weight block is tapered from bottom to top.

5. The copper foil plating adhesion force testing device according to claim 1, wherein: the weight block is provided with a sleeve, and the pull rope is fixedly connected with the weight block through the sleeve.

6. The copper foil plating adhesion force testing device according to claim 2, wherein: each of the first pressing blocks is provided with a first outward flange at both ends in a second direction perpendicular to the first direction; the first outward flange and the test platform are connected by a first bolt, each of the first outward flanges is provided with a first threaded hole, the test platform is provided with a second threaded hole, and the first bolt, the second threaded hole and the first threaded hole are arranged one by one in correspondence.

7. The copper foil plating adhesion force testing device according to claim 2, wherein: the motor is configured to stop working when the weight block contacts the first pressing block close to the side of the motor; the pressing mechanism further includes two second pressing blocks, the two second pressing blocks being spaced apart in a second direction perpendicular to the first direction; each of the second pressing blocks extends in the first direction, and the two pressing blocks form a limiting channel extending in the first direction to prevent the weight block from deviating during movement in the first direction.

8. The copper foil plating adhesion force testing device according to claim 7, wherein: each of the second pressing blocks is provided with a second outward flange on the side away from the weight block, the second outward flange and the test platform are connected by a second bolt, each of the second outward flanges is provided with a third threaded hole, the test platform is provided with a fourth threaded hole, and the second bolt, the fourth threaded hole and the third threaded hole are arranged one by one in correspondence.

9. The copper foil plating adhesion force testing device according to claim 1, wherein: the bottom edge of the weight block is a rounded structure.

10. The copper foil plating adhesion test device according to claim 1, wherein, the wiping member is a dust-free cloth, a non-woven fabric or a dust-free paper; a handle is provided on the top of the weight block.

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