A brownie aid for an elongated copper bar

Abstract

The utility model relates to a kind of brown auxiliary tools of slender copper bar, the copper bar includes main body and the bending part being set to the both ends of the main body, the bending part with the main body has height difference between, the auxiliary tool includes base plate and cover plate, the first surface of the base plate is provided with multiple parallel and interval arrangement placement slot, the placement slot is equipped with multiple first through-hole along its length direction interval arrangement, the first through-hole is through the base plate;Form the fixing area for accommodating the bending part between adjacent two placement slots;The cover plate is detachably pressed on the base plate, and the bending part is pressed tightly between the fixing area and the cover plate, so that the main body is suspended in the placement slot.The utility model suspends the main body part of copper bar in placement slot, ensures that each surface of copper bar can be fully, uniformly and contacted with brown liquid, so as to improve brown brown effect and product yield.

Description

Technical Field

[0001] This utility model relates to the field of metal processing, and more specifically, to an auxiliary tool for browning slender copper strips. Background Technology

[0002] In the electronics manufacturing and related industries, slender copper strips are widely used as an important conductive material in various circuit connections and signal transmission scenarios. To enhance the corrosion resistance of the copper strip surface and improve its adhesion to subsequent coating or soldering materials, a browning treatment is usually required. However, in the actual browning process, the special shape and structure of slender copper strips, especially the bends at both ends with height differences from the main body, make the browning process difficult. Traditional browning methods often involve wrapping and protecting the bends of the copper strip that do not require browning, and then placing the copper strip on a bare plate for browning. However, due to the special structure of the copper strip, mass production is difficult, and it easily leads to poor browning on the side of the copper strip closest to the bare plate. Utility Model Content

[0003] In view of this, the present invention provides a browning auxiliary tool for slender copper strips that can achieve mass production and improve browning quality.

[0004] The objective of this utility model is achieved through the following technical solution: A browning auxiliary tool for a slender copper strip, the copper strip comprising a main body and bent portions disposed at both ends of the main body, the bent portions having a height difference with the main body, the auxiliary tool comprising a substrate and a cover plate, the first surface of the substrate being provided with a plurality of parallel and spaced placement grooves, the placement grooves being provided with a plurality of first through holes spaced apart along their length direction, the first through holes penetrating the substrate; a fixing area for accommodating the bent portions is formed between two adjacent placement grooves; the cover plate is detachably pressed onto the substrate, pressing the bent portions between the fixing area and the cover plate, thereby suspending the main body within the placement grooves.

[0005] In the above technical solution, by suspending the main body of the copper strip in the placement groove, the browning solution enters through the first through hole, ensuring that all surfaces of the copper strip can fully and uniformly contact the browning solution. This avoids the "masking effect" caused by contacting the placement surface, thereby achieving a browning effect with consistent color and uniform film layer, greatly improving product yield. Furthermore, the bent parts that do not need to be browned can be sealed by the pressure of the cover plate and the fixed area, thus avoiding contact with the browning solution.

[0006] Furthermore, the substrate and cover plate are pressed together to securely clamp the bent portion with a height difference between the fixed area and the cover plate, providing reliable positioning and clamping for the entire copper strip. This effectively prevents the slender copper strip from shifting, swaying, or deforming under the impact or collision of the browning bath solution. Moreover, multiple parallel and spaced placement slots on the substrate enable batch processing of large quantities of copper strips in a single operation, significantly improving browning efficiency.

[0007] Optionally, in one possible implementation, the cover plate has a plurality of sealing gaskets on the side facing the substrate, the sealing gaskets corresponding to the fixing area.

[0008] In the above technical solution, the sealing gasket is elastic and deforms during the pressing of the cover plate, providing a soft and uniform clamping force to the bent portion of the copper strip, thus protecting the bent portion from damage. The sealing gasket corresponds to the fixing area and can tightly adhere to the contact area between the bent portion and the substrate, forming an effective local sealing barrier. This prevents the browning agent from seeping in and remaining between the pressed contact surfaces of the bent portion, ensuring that the bent portion is not browned.

[0009] Optionally, in one possible implementation, the cover plate is provided with a plurality of second through holes, which are coaxially arranged with the corresponding first through holes when the cover plate is pressed onto the substrate.

[0010] In the above technical solution, the second through hole and the first through hole form a vertical channel running through the tool from top to bottom, allowing the browning solution to not only flow in from the bottom and out from the side, but also to flow vertically and smoothly throughout the entire tool. This completely eliminates dead zones in the solution exchange, ensuring that the old and new solutions in the tank can fully convection, so that all surfaces of each copper strip are in a fresh solution with uniform composition and consistent activity, thus achieving a more uniform browning effect.

[0011] Optionally, in one possible implementation, the edge of the substrate is provided with a plurality of first mounting holes spaced apart, and the cover plate is provided with second mounting holes corresponding to the positions of the first mounting holes, and the corresponding first mounting holes and second mounting holes are connected by a locking member.

[0012] In the above technical solution, multiple mounting holes spaced apart and engaging with locking components allow for the application and even distribution of clamping force at multiple points on the substrate and cover plate. This ensures uniform force distribution across the entire contact surface, avoiding issues such as warping or uneven pressure in the middle section that may occur due to single-point or few-point pressing. This guarantees that all bent sections of the copper strips are stably and consistently clamped, preventing loosening under the impact of the liquid.

[0013] Optionally, in one possible implementation, both the first mounting hole and the second mounting hole are threaded holes, and the locking element is a bolt, which can be threaded into the first mounting hole and the second mounting hole.

[0014] In the above technical solution, the threaded connection is a connection method with good self-locking properties. After the bolt is screwed into the first mounting hole and the second mounting hole, the cover plate can maintain a tight connection with the substrate without forced disassembly by external force. At the same time, the pressure of the cover plate on the copper strip on the substrate can be precisely adjusted by controlling the depth of the bolt screwed into the threaded hole.

[0015] Alternatively, in one possible implementation, the substrate and cover plate are made of polypropylene, polytetrafluoroethylene, or corrosion-resistant epoxy resin.

[0016] In the above technical solutions, the browning solution is typically a strongly acidic chemical solution. The three selected materials all possess excellent resistance to acid, oxidation, and chemical corrosion. They can withstand the erosion of the browning solution for extended periods without swelling, deformation, or performance degradation, thus significantly extending the tool's service life and reducing replacement costs and downtime due to tool damage.

[0017] Alternatively, in one possible implementation, the depth of the placement groove is greater than the height difference between the bottom of the main body and the bottom of the bent portion.

[0018] In the above technical solution, the depth design ensures that when the cover plate is pressed onto the substrate, the lower surface of the bent part of the copper strip will first contact the fixing area of ​​the substrate, while the lower surface of the main body will not touch the bottom of the placement groove. This ensures that the main body remains suspended when the copper strip is fixed.

[0019] Optionally, in one possible implementation, the cover plate has a positioning hole on the side facing the substrate, and the substrate has a positioning post adapted to the positioning hole, which can be inserted into the positioning hole.

[0020] In the above technical solution, the positioning posts provide clear physical guidance for operators when placing the cover plate. By simply fitting the positioning holes onto the positioning posts, the cover plate can achieve preliminary and precise pre-positioning with the base plate, making the assembly operation simple, fast, and intuitive, and significantly improving production efficiency.

[0021] Alternatively, in one possible implementation, the surface of the fixed area is provided with an anti-slip texture.

[0022] In the above technical solution, the anti-slip texture greatly improves the static friction between the copper strip and the lower surface of the bent section by increasing the surface roughness of the fixed area. This effectively prevents the copper strip from experiencing minor slippage or horizontal displacement due to the impact of the intense flow of the plating solution during the browning process. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an exploded view of the overall structure of one embodiment.

[0025] Figure 2 This is a schematic diagram of the structure of a copper strip in one embodiment.

[0026] Figure 3 This is a schematic diagram of the substrate structure in one embodiment.

[0027] Figure 4 This is a schematic diagram of the cover plate in one embodiment.

[0028] Reference numerals: 1-substrate; 11-placement groove; 12-first through hole; 13-fixing area; 14-first mounting hole; 15-positioning post; 2-cover plate; 21-sealing gasket; 22-second through hole; 23-second mounting hole; 24-positioning hole; 3-copper strip; 31-main body; 32-bent part. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] Please refer to Figures 1-3This embodiment provides a browning auxiliary tool for a slender copper strip 3. The copper strip 3 includes a main body 31 and bending portions 32 disposed at both ends of the main body 31. There is a height difference between the bending portions 32 and the main body 31. Specifically, the auxiliary tool includes a substrate 1 and a cover plate 2. The substrate 1 and the cover plate 2 can be stacked together. The first surface of the substrate 1 is provided with a plurality of parallel and spaced placement grooves 11. The placement grooves 11 are provided with a plurality of first through holes 12 arranged spaced along their length direction. The first through holes 12 penetrate the substrate 1. A fixing area 13 for accommodating the bending portions 32 is formed between two adjacent placement grooves 11. The cover plate 2 is detachably pressed onto the substrate 1 and presses the bending portions 32 between the fixing area 13 and the cover plate 2, so that the main body 31 is suspended in the placement grooves 11.

[0032] By suspending the main body 31 of the copper strip 3 in the placement groove 11, the browning agent enters through the first through hole 12, ensuring that all surfaces of the copper strip 3 can fully and uniformly contact the browning agent, avoiding the "masking effect" caused by contact placement surfaces, thereby obtaining a browning effect with consistent color and uniform film layer, greatly improving product yield. Furthermore, the bent portion 32 that does not need to be browned can be sealed by the pressure of the cover plate 2 and the fixing area 13, thus avoiding contact with the browning agent.

[0033] Furthermore, the structure of pressing the substrate 1 and the cover plate 2 together securely presses the bent portion 32 with a height difference between the fixed area 13 and the cover plate 2, providing reliable positioning and clamping for the entire copper strip 3. This effectively prevents the slender copper strip 3 from shifting, swinging, or deforming under the impact or collision of the browning bath solution. Moreover, the substrate 1 has multiple parallel and spaced placement slots 11, enabling batch processing of a large number of copper strips 3 in a single operation, thereby significantly improving the browning efficiency.

[0034] It should be noted that this embodiment can place a batch of copper strips 3 of different types at once. For example, multiple copper strips 3 of different types can be placed in one placement groove 11 at the same time, thus realizing the batch browning production of copper strips 3. In addition, in order to further improve the sealing performance and prevent the chemical from contacting the bending part 32, the bending part 32 can be first pasted to the fixed area 13 with tape before pressing the cover plate 2.

[0035] Please refer to Figure 4 In this embodiment, the cover plate 2 has a plurality of sealing gaskets 21 on the side facing the substrate 1, and the sealing gaskets 21 correspond to the fixing area 13. Specifically, the sealing gaskets 21 can be rubber materials such as natural rubber, nitrile rubber or silicone rubber, or plastic materials such as polytetrafluoroethylene, polyamide, polyethylene.

[0036] The sealing gasket 21 is elastic and deforms when the cover plate 2 is pressed, providing a soft and uniform clamping force to the bent portion 32 of the copper strip 3, protecting the bent portion 32 from damage. The sealing gasket 21 corresponds to the fixing area 13 and can fit tightly against the contact area between the bent portion 32 and the substrate 1, forming an effective local sealing barrier. This prevents the browning agent from seeping into and remaining between the pressed contact surfaces of the bent portion 32, ensuring that the bent portion 32 is not browned.

[0037] In this embodiment, the cover plate 2 is provided with a plurality of second through holes 22. When the cover plate 2 is pressed onto the substrate 1, the second through holes 22 are coaxially arranged with the corresponding first through holes 12.

[0038] The second through hole 22 and the first through hole 12 form a vertical channel running through the inside of the tool, allowing the browning solution to not only flow in from the bottom and out from the side, but also to flow vertically and smoothly throughout the entire tool. This completely eliminates dead zones in the solution exchange, ensuring that the old and new solutions in the tank can fully convection, so that all surfaces of each copper strip 3 are in fresh solution with uniform composition and consistent activity, thus achieving a more uniform browning effect.

[0039] In this embodiment, the edge of the substrate 1 is provided with a plurality of first mounting holes 14 at intervals, and the cover plate 2 is provided with second mounting holes 23 corresponding to the positions of the first mounting holes 14. The corresponding first mounting holes 14 and second mounting holes 23 are connected by locking members.

[0040] By using multiple spaced mounting holes and locking components, clamping force can be applied and evenly distributed at multiple points on the substrate 1 and cover plate 2. This ensures uniform force distribution across the entire contact surface, avoiding problems such as warping in the middle or uneven pressure that may occur due to single-point or few-point pressing. This ensures that all the bent portions 32 of the copper strips 3 can be stably and consistently clamped, preventing loosening under the impact of the liquid.

[0041] The use of locking devices to connect the first mounting hole 14 and the second mounting hole 23 makes the disassembly and assembly of the cover plate 2 and the base plate 1 very convenient. When placing or removing the copper strip 3, the operator can quickly loosen the locking devices, remove the cover plate 2, complete the operation of the copper strip 3, and then quickly replace and lock the cover plate 2. This convenient operation method greatly shortens the preparation and cleaning time of auxiliary tools, improves the overall production efficiency, and is especially suitable for mass production environments.

[0042] Specifically, both the first mounting hole 14 and the second mounting hole 23 are threaded holes, and the locking element is a bolt, which can be threaded into the first mounting hole 14 and the second mounting hole 23. Threaded connection is a connection method with good self-locking performance. When the bolt is screwed into the first mounting hole 14 and the second mounting hole 23, the cover plate 2 can remain tightly connected to the base plate 1 without forced disassembly by external force. At the same time, the pressure of the cover plate 2 on the copper strip 3 on the base plate 1 can be precisely adjusted by controlling the depth of the bolt screwed into the threaded hole.

[0043] Of course, as another implementation method, magnetic fixation can also be used: magnetic materials are embedded at corresponding positions on the substrate 1 and the cover plate 2. For example, a permanent magnet is installed on the edge of the substrate 1, and a ferromagnetic material or another permanent magnet (with opposite magnetic poles facing each other) is installed at the corresponding position on the edge of the cover plate 2. Utilizing the magnetic attraction, the cover plate 2 automatically adheres to and tightly fits onto the substrate 1, thus fixing the copper strip 3. Alternatively, a snap-fit ​​connection can be used: snap-fit ​​structures are designed on the edges of the substrate 1 and the cover plate 2. For example, protruding snaps are provided on the edge of the substrate 1, and corresponding slots are provided on the edge of the cover plate 2. When the cover plate 2 is pressed onto the substrate 1, the snaps are engaged in the slots, achieving a tight connection through mechanical force.

[0044] In this embodiment, the substrate 1 and the cover plate 2 are made of polypropylene, polytetrafluoroethylene, or corrosion-resistant epoxy resin. The browning solution is typically a strongly acidic chemical solution. All three materials selected possess excellent resistance to acid, oxidation, and chemical corrosion. They can withstand the erosion of the browning solution for extended periods without swelling, deformation, or performance degradation, thereby significantly extending the tool's service life and reducing replacement costs and downtime due to tool damage.

[0045] It should be noted that the depth of the placement groove 11 is greater than the height difference between the bottom of the main body 31 and the bottom of the bent portion 32. When placing the copper strip 3, the bottom of the bent portion 32 of the copper strip 3 needs to be placed on the fixing area 13. Therefore, this depth design ensures that when the cover plate 2 is pressed onto the substrate 1, the lower surface of the bent portion 32 of the copper strip 3 will first contact the fixing area 13 of the substrate 1, while the lower surface of the main body 31 will not touch the bottom of the placement groove 11. This ensures that the main body 31 remains suspended when the copper strip 3 is fixed.

[0046] In this embodiment, a positioning hole 24 is provided on the side of the cover plate 2 facing the substrate 1, and a positioning post 15 adapted to the positioning hole 24 is provided on the substrate 1. The positioning post 15 can be inserted into the positioning hole 24.

[0047] When placing the cover plate 2, the positioning post 15 provides clear physical guidance for the operator. By simply fitting the positioning hole 24 onto the positioning post 15, the cover plate 2 can achieve preliminary and precise pre-positioning with the base plate 1, making the assembly operation simple, fast and intuitive, and significantly improving production efficiency.

[0048] In this embodiment, the surface of the fixed area 13 is provided with an anti-slip texture. By increasing the roughness of the surface of the fixed area 13, the anti-slip texture greatly improves the static friction between the fixed area 13 and the lower surface of the bent portion 32 of the copper strip 3. This effectively prevents the copper strip 3 from experiencing minor slippage or horizontal displacement due to the impact of the intense flow of the plating solution during the browning process.

[0049] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0050] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] 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 browning auxiliary tool for a slender copper strip, the copper strip comprising a main body and bent portions disposed at both ends of the main body, wherein there is a height difference between the bent portions and the main body, characterized in that, The auxiliary tool includes a substrate and a cover plate. The first surface of the substrate is provided with a plurality of parallel and spaced placement grooves. The placement grooves are provided with a plurality of first through holes arranged at intervals along their length direction, and the first through holes penetrate the substrate. A fixing area for accommodating the bent portion is formed between two adjacent placement grooves. The cover plate is detachably pressed onto the substrate and presses the bent portion between the fixing area and the cover plate, so that the main body is suspended in the placement groove.

2. The browning auxiliary tool for slender copper strips according to claim 1, characterized in that, The cover plate has a plurality of sealing gaskets on the side facing the substrate, and the sealing gaskets correspond to the fixing area.

3. The browning auxiliary tool for slender copper strips according to claim 1, characterized in that, The cover plate is provided with a plurality of second through holes, which are coaxially arranged with the corresponding first through holes when the cover plate is pressed onto the substrate.

4. The browning auxiliary tool for slender copper strips according to claim 1, characterized in that, The substrate has a plurality of first mounting holes spaced apart on its edge, and the cover plate has a second mounting hole corresponding to the position of the first mounting hole. The corresponding first mounting hole and the second mounting hole are connected by a locking member.

5. The browning auxiliary tool for slender copper strips according to claim 4, characterized in that, Both the first mounting hole and the second mounting hole are threaded holes, and the locking element is a bolt, which can be threaded into the first mounting hole and the second mounting hole.

6. The browning auxiliary tool for slender copper strips according to claim 1, characterized in that, The substrate and cover plate are made of polypropylene, polytetrafluoroethylene or corrosion-resistant epoxy resin.

7. The browning auxiliary tool for slender copper strips according to claim 1, characterized in that, The depth of the placement groove is greater than the height difference between the bottom of the main body and the bottom of the bent portion.

8. The browning auxiliary tool for slender copper strips according to claim 1, characterized in that, The cover plate has a positioning hole on the side facing the base plate, and the base plate has a positioning post that matches the positioning hole. The positioning post can be inserted into the positioning hole.

9. The browning auxiliary tool for slender copper strips according to claim 1, characterized in that, The surface of the fixed area is provided with an anti-slip texture.

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