A pilot plant for hot dip tinning of copper strip

Abstract

The utility model discloses a copper band hot dip tinning's pilot plant, related to copper band tinning pilot technology field, aims at solving the problem of unable to simulate industrial production to copper band tinning, reduces the problem of industrialization production risk, adopts the technical scheme, including heating drying unit, tin pot and support frame, and the support frame is installed with horizontal support plate and vertical support plate, the horizontal support plate is equipped with the flux groove and tin pot in proper order along the processing direction of copper band, and the vertical support plate is connected with the guide roller through the first electro -hydraulic cylinder, and the guide roller is equipped with two groups, and the position corresponding with flux groove and tin pot respectively, and heating drying unit is located between two guide rollers, and still be installed with a plurality of groups of conveying roller for conveying copper band on the vertical support plate, and the device can accurately reproduce the key parameter in industrial production, and effectively find the potential technical problem of the transition from research and development stage to industrial production, provide data support for process optimization, and reduce the trial and error cost of industrial production.

Description

Technical Field

[0001] This utility model relates to the field of pilot-scale technology for copper strip tin plating, specifically a pilot-scale device for hot-dip tin plating of copper strip. Background Technology

[0002] Hot-dip tin plating of copper strip is a key process to improve the corrosion resistance, weldability and surface properties of copper strip, and it is widely used in electronics, power and communications fields.

[0003] During the research and development phase, the existing copper strip hot-dip tin plating equipment is relatively large in size, and the process improvement and adjustment are costly. Therefore, it is necessary to simulate the industrial production process through a pilot plant to verify the rationality of the process parameters and solve the technical gap between laboratory pilot testing and industrial production.

[0004] The device has a fixed structure, low integration of functional units, difficult installation and maintenance, and lacks flexibility, making it difficult to adapt to the adjustment needs of different specifications of copper strips and processes. The device lacks a unified control system, and the coordination of parameters such as production line speed, preheating temperature, and molten tin temperature is poor, making it impossible to accurately simulate industrial production conditions. This results in a large deviation between pilot-scale results and industrial production, increasing the risk of production conversion. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a pilot device for hot-dip tin plating of copper strip, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model discloses a pilot-scale device for hot-dip tin plating of copper strip. The technical solution adopted includes a heating and drying unit and a tin pot. The heating and drying unit is used to dry the flux on the copper strip and preheat the copper strip body. The tin pot is used to hold molten tin. It also includes a support frame, on which a transverse support plate and a longitudinal support plate are mounted; The transverse support plate is provided with a flux tank and a solder pot in sequence along the processing direction of the copper strip; The longitudinal support plate is connected to guide rollers via a first electro-hydraulic cylinder. There are two sets of guide rollers, which correspond to the positions of the flux tank and the solder pot, respectively. The heating and drying unit is located between the two sets of guide rollers. The longitudinal support plate is also equipped with multiple sets of conveying rollers for conveying the copper strip. This device can accurately reproduce key parameters (speed, temperature, tension, etc.) in industrial production, effectively identify potential technical problems in the transition from the R&D stage to industrial production, provide data support for process optimization, and reduce the trial and error costs of industrial production.

[0007] As a preferred embodiment of this utility model, the longitudinal support plate is further provided with a first pressing roller group and a second pressing roller group, the first pressing roller group and the second pressing roller group being located on the rear side of the flux tank and the solder pot, respectively.

[0008] As a preferred technical solution of this utility model, the second pressing roller group is installed on the longitudinal support plate by the second electro-hydraulic cylinder. As the extension end of the second electro-hydraulic cylinder moves, the second pressing roller group realizes dynamic adjustment of the pressing force through the second electro-hydraulic cylinder and the PLC control center, so as to ensure uniform tension when the copper strip runs at high speed (10-100m / min) and avoid deviation.

[0009] As a preferred technical solution of this utility model, the conveying roller is bolted to the longitudinal support plate, and the functional units are integrated through the support frame. With the help of movable casters and height-adjustable supports, the device can be quickly installed and its position adjusted, reducing maintenance difficulty and saving space costs.

[0010] As a preferred embodiment of this utility model, the longitudinal support plate is further provided with a waist-shaped hole that matches the bolt, and the positional relationship of the conveying roller on the longitudinal support plate is adjusted through the waist-shaped hole.

[0011] As a preferred embodiment of this utility model, the bottom of the support frame is provided with movable casters and height-adjustable supports.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this utility model integrates various functional units through a support frame, and with the help of movable casters and height-adjustable supports, it realizes the quick installation and position adjustment of the device, reduces the difficulty of maintenance, and saves space costs at the same time; The guide roller is moved vertically by the first electro-hydraulic cylinder. The stroke can be adjusted by the first electro-hydraulic cylinder to precisely control the immersion depth of the copper strip, ensuring uniform flux coating and adjustable coating thickness. The second clamping roller assembly dynamically adjusts the clamping force through the second electro-hydraulic cylinder and the PLC control center, ensuring uniform tension and preventing deviation when the copper strip runs at high speed (10-100m / min). This device can accurately reproduce key parameters (speed, temperature, tension, etc.) in industrial production, effectively identify potential technical problems in the transition from the R&D stage to industrial production, provide data support for process optimization, and reduce the trial and error costs of industrial production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the support frame structure of this utility model; Figure 3 This is a partial structural diagram of the present invention.

[0014] In the diagram: 1. Support frame; 2. Transverse support plate; 3. Longitudinal support plate; 4. Copper strip; 5. Heating and drying unit; 6. Tin pot; 7. Conveying roller; 8. Guide roller; 9. First pressing roller group; 10. First electro-hydraulic cylinder; 11. Second electro-hydraulic cylinder; 12. Waist-shaped hole; 13. Bolt; 14. Flux tank; 15. Second pressing roller group. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0016] like Figures 1 to 3 As shown, this utility model discloses a pilot-scale device for hot-dip tin plating of copper strip. The technical solution adopted includes a heating and drying unit 5 and a tin pot 6. The heating and drying unit 5 is used to dry the flux on the copper strip 4 and preheat the copper strip 4 body. The tin pot 6 is used to hold molten tin. It also includes a support frame 1, on which a transverse support plate 2 and a longitudinal support plate 3 are installed; the bottom of the support frame 1 is provided with movable casters and a height-adjustable support. The use of movable casters and a height-adjustable support makes it easy to install and maintain, and the cost is low.

[0017] The transverse support plate 2 is provided with a flux tank 14 and a solder pot 6 in sequence along the processing direction of the copper strip 4; The longitudinal support plate 3 is connected to a guide roller 8 via a first electro-hydraulic cylinder 10. There are two sets of guide rollers 8, which correspond to the positions of the flux tank 14 and the solder pot 6, respectively. The heating and drying unit 5 is located between the two sets of guide rollers 8. The longitudinal support plate 3 is also provided with a first pressing roller group 9 and a second pressing roller group 15, the first pressing roller group 9 and the second pressing roller group 15 being located on the rear side of the flux tank 14 and the solder pot 6, respectively.

[0018] The guide roller 8 is equipped with a stroke-adjustable first electro-hydraulic cylinder 10, which can be electrically controlled to easily adjust the immersion depth of the strip in the flux tank 14, ensuring that the flux is evenly applied to the surface of the strip, and the flux coating thickness is adjustable.

[0019] The second pressing roller group 15 is mounted on the longitudinal support plate 3 via the second electro-hydraulic cylinder 11. As the telescopic end of the second electro-hydraulic cylinder 11 moves, the PLC control center dynamically adjusts the pressing force to ensure uniform tension of the strip during high-speed operation and avoid deviation.

[0020] Multiple sets of conveying rollers 7 for conveying the copper strip 4 are also installed on the longitudinal support plate 3. The conveying rollers 7 are installed on the longitudinal support plate 3 by bolts 13, which facilitates disassembly and replacement.

[0021] The longitudinal support plate 3 is also provided with a waist-shaped hole 12 that matches the bolt 13, and the position of the conveying roller 7 on the longitudinal support plate 3 is adjusted through the waist-shaped hole 12.

[0022] The working principle of this utility model: After the copper strip 4 is drawn out by the external uncoiling device, it is conveyed into the device by the conveying roller 7 on the longitudinal support plate 3. The conveying roller 7 is installed on the waist-shaped hole 12 of the longitudinal support plate 3 by bolts 13. The position can be adjusted through the waist-shaped hole 12 to ensure that the copper strip 4 is centered during the conveying process and to avoid initial deviation. The copper strip 4 enters the flux tank 14 on the transverse support plate 2 along with the conveying roller 7. The guide roller 8 on the longitudinal support plate 3, which corresponds to the flux tank 14, is adjusted in height by the first electro-hydraulic cylinder 10 to precisely control the immersion depth of the copper strip 4 in the flux tank 14, so that the flux is evenly adhered to the surface of the copper strip 4, ensuring that the strips of different specifications and alloys have sufficient reaction time with the flux. After coating, the copper strip 4 is initially compacted by the first pressing roller group 9 to ensure that the flux coating thickness on the surface of copper strips of different thicknesses is consistent. The copper strip 4 with flux attached is conveyed to the heating and drying unit 5 between two sets of guide rollers 8. The heating and drying unit 5 dries the flux on the copper strip 4 and preheats the copper strip 4 body to prepare for subsequent tin plating. The preheated copper strip 4 is conveyed to the tin pot 6 on the transverse support plate 2. The guide roller 8 corresponding to the tin pot 6 guides the copper strip 4 to be immersed in the molten tin in the tin pot 6 to complete the hot-dip tin plating. The heating device adapted to the tin pot 6 can accurately control the temperature of the molten tin, and the position of the guide roller 8 can be adjusted by the first electro-hydraulic cylinder 10 to ensure that the contact state between the copper strip 4 and the molten tin is stable and to ensure the quality of the plating layer. After tin plating, the copper strip 4 is pressed by the second pressing roller group 15 on the longitudinal support plate 3. The second pressing roller group 15 adjusts the position and pressure through the second electro-hydraulic cylinder 11 to remove excess tin liquid from the surface and ensure uniform tension of the copper strip 4, thus ensuring the uniformity of the tin plating layer on the surface of the copper strip 4 and the surface quality. Finally, the copper strip 4 is guided out by the subsequent conveying roller 7 to complete the entire hot-dip tin plating process.

[0023] The circuits and mechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They are common knowledge.

[0024] Components not described in detail in this article are existing technologies.

[0025] 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 pilot plant for hot-dip tin plating of copper strip, comprising a heating and drying unit (5) and a tin pot (6), wherein the heating and drying unit (5) is used to dry the flux on the copper strip (4) and preheat the copper strip (4) body, and the tin pot (6) is used to hold molten tin; Its features are: It also includes a support frame (1), on which a transverse support plate (2) and a longitudinal support plate (3) are installed. The transverse support plate (2) is provided with a flux tank (14) and a solder pot (6) in sequence along the processing direction of the copper strip (4). The longitudinal support plate (3) is connected to a guide roller (8) via a first electro-hydraulic cylinder (10). The guide roller (8) is provided in two sets, which correspond to the positions of the flux tank (14) and the solder pot (6) respectively. The heating and drying unit (5) is located between the two sets of guide rollers (8). The longitudinal support plate (3) is also equipped with multiple sets of conveying rollers (7) for conveying the copper strip (4).

2. The pilot-scale apparatus for hot-dip tin plating of copper strip according to claim 1, characterized in that: The longitudinal support plate (3) is also provided with a first pressing roller group (9) and a second pressing roller group (15), the first pressing roller group (9) and the second pressing roller group (15) being located on the rear side of the flux tank (14) and the solder pot (6), respectively.

3. The pilot plant for hot dip tinning of copper strip according to claim 2, characterized in that: The second pressing roller group (15) is mounted on the longitudinal support plate (3) via the second electro-hydraulic cylinder (11) and moves with the extension and retraction end of the second electro-hydraulic cylinder (11).

4. A pilot-scale apparatus for hot-dip tin plating of copper strip according to claim 1, characterized in that: The conveying roller (7) is mounted on the longitudinal support plate (3) by bolts (13).

5. A pilot-scale apparatus for hot-dip tin plating of copper strip according to claim 4, characterized in that: The longitudinal support plate (3) is also provided with a waist-shaped hole (12) that matches the bolt (13), and the position of the conveying roller (7) on the longitudinal support plate (3) is adjusted through the waist-shaped hole (12).

6. A pilot-scale apparatus for hot-dip tin plating of copper strip according to claim 1, characterized in that: The bottom of the support frame (1) is provided with movable casters and height-adjustable supports.

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