A dip-coating method for oxygen-free copper rod continuous casting equipment

Abstract

This utility model discloses a dip-coating method for continuous casting of oxygen-free copper rods, relating to the field of oxygen-free copper rod production technology. The dip-coating method includes a dip-coating tank and a crystallizer disposed at one end of the tank for drawing the oxygen-free copper rod upwards. It also includes multiple partition plates disposed within the dip-coating tank, which divide the tank into multiple chambers. This utility model has the advantage of forming a multi-stage composite coating in a single continuous dip-coating process by dividing the dip-coating tank into multiple chambers, eliminating the need for multiple dip-coating processes and auxiliary steps, thus improving production efficiency and reducing costs. This addresses the problem that traditional dip-coating methods typically only form a single-component coating on the copper rod surface. While this coating may meet the requirements of a specific process, it cannot adapt to subsequent processing steps. This functional limitation forces multiple independent dip-coating processes in production, resulting in low efficiency and high costs.

Description

Technical Field

[0001] This utility model relates to the field of oxygen-free copper rod production technology, specifically to an oxygen-free copper rod continuous casting equipment using the dip-coating method. Background Technology

[0002] In the current copper rod processing field, the dip-coating method for oxygen-free copper rods using the upward continuous casting technology has been widely applied. In the upward casting process, the liquid copper in the holding furnace is rapidly cooled using a crystallizer. Under the action of a traction mechanism, the solidified copper is pulled out to form a copper rod structure, which is then wound up using auxiliary equipment such as a double-headed deflector. The dip-coating method for producing oxygen-free copper rods involves passing the cooled oxygen-free copper rod through a coating solution maintained at a certain liquid level. This allows a uniform layer of coating solution to adhere to the surface of the oxygen-free copper rod, thereby improving its surface quality.

[0003] For example, the patent announcement number CN221414955U discloses an oxygen-free copper rod dipping continuous casting machine. During dipping, two rotary motors drive the rotating rod to rotate, which in turn drives the stirring blade to rotate, assisting the dipping liquid in the dipping box to rotate, so that the oxygen-free copper rod can be guaranteed to have the dipping effect.

[0004] Traditional dip coating can only form a single-component coating on the surface of copper rods. Although this coating can meet the requirements of a specific process, it cannot be adapted to multiple subsequent processing steps. This single function forces the production to set up multiple independent dip coating processes, resulting in low efficiency and high cost. Utility Model Content

[0005] This invention provides an oxygen-free copper rod continuous casting equipment using a dip coating method. By dividing the dip coating box into multiple chambers, it can sequentially form a multi-stage composite coating in a single continuous dip coating process, eliminating the need for multiple dip coatings and auxiliary processes. This improves production efficiency and reduces costs. It solves the problem that traditional dip coating can only form a single-component coating on the surface of the copper rod. Although this coating can meet the requirements of a specific process, it cannot be adapted to subsequent processing steps. This functional limitation forces multiple independent dip coating processes in production, resulting in low efficiency and high costs.

[0006] To achieve the goal of improving production efficiency and reducing costs by dividing the dip coating tank into multiple chambers and sequentially forming a multi-stage composite coating in a single continuous dip coating process without multiple dip coatings and supporting auxiliary steps, this utility model provides the following technical solution: A dip coating method for oxygen-free copper rod continuous casting, comprising a dip coating tank and a crystallizer disposed at one end of the dip coating tank for drawing the oxygen-free copper rod upwards, further comprising: multiple partition plates disposed within the dip coating tank, the partition plates being used to divide the dip coating tank into multiple chambers, each partition plate having a guide roller at its top; a pressing device disposed on the dip coating tank, the pressing device being adapted to the number of chambers in the dip coating tank, the pressing device being used to press the oxygen-free copper rod into the dip coating liquid; a drying device disposed at the other end of the dip coating tank, the drying device being used to dry the dip-coated oxygen-free copper rod, and a filter device disposed on the side of the dip coating tank for filtering the dip coating liquid.

[0007] As a preferred embodiment of this utility model, the pressing device includes an electric push rod, a hinge frame, and a pressing roller. The electric push rod is mounted on the surface of the dip coating tank via a bracket. The hinge frame is fixedly mounted at the end of the telescopic shaft of the electric push rod. The pressing roller is hinged to the hinge frame.

[0008] As a preferred embodiment of this utility model, the filtration device includes a slide rail, a sliding plate, a water pump, and a filter box. The slide rail is horizontally arranged on the side of the dip coating tank, and the sliding plate is slidably sleeved on the surface of the slide rail. The water pump and the filter box are both fixedly arranged on the surface of the sliding plate. The water pump's pumping pipe is fixedly connected to the filter box, and the water pump's outlet faces into the dip coating tank. Multiple drain pipes are connected to one side of the bottom of the dip coating tank through valves. The number of drain pipes is adapted to the number of chambers in the dip coating tank, and the drain pipes are connected to the filter box through connecting components.

[0009] As a preferred embodiment of this utility model, the filter box is provided with a first filter plate and a second filter plate. The first filter plate is located at the bottom of the second filter plate. The first filter plate is used to filter impurities, and the second filter plate is used to filter harmful components such as metal ions.

[0010] As a preferred technical solution of this utility model, the connecting assembly includes a connecting pipe and a threaded sleeve. The connecting pipe is fixedly connected to the bottom of the filter box. The surfaces of both the connecting pipe and the drain pipe are threaded. The two ends of the threaded sleeve are respectively fitted onto the surfaces of the connecting pipe and the drain pipe.

[0011] As a preferred embodiment of the present invention, the drying device includes a drying shell, electric heating tubes, and a positioning component. The drying shell is fixedly disposed at the end of the dip-coating tank away from the crystallizer. Multiple electric heating tubes are provided, and an array of multiple electric heating tubes is fixedly disposed inside the drying shell. The positioning component is fixedly disposed at the end of the drying shell away from the dip-coating tank.

[0012] As a preferred technical solution of this utility model, the positioning component includes a fixed frame, a positioning roller, a clamping screw, a connecting frame, and a clamping roller. The fixed frame is fixedly disposed at one end of the drying shell, the positioning roller is hinged to the bottom of the fixed frame, the connecting frame is disposed at the top of the fixed frame, the clamping roller is hinged inside the connecting frame, and the clamping screw is disposed on the surface of the connecting frame through a bearing, and the clamping screw thread passes through the fixed frame.

[0013] Compared with the prior art, this utility model provides an oxygen-free copper rod continuous casting equipment using the dip-coating method, which has the following beneficial effects:

[0014] This oxygen-free copper rod continuous casting equipment using dip coating, by setting up a partition plate and a pressing device, divides the dip coating box into multiple chambers, enabling the sequential formation of a multi-stage composite coating in a single continuous dip coating process. This eliminates the need for multiple dip coatings and auxiliary processes, improving production efficiency and reducing costs. It solves the problem that traditional dip coating can only form a single-component coating on the surface of the copper rod. Although this coating can meet the requirements of a specific process, it cannot be adapted to subsequent processing steps. This functional limitation forces multiple independent dip coating processes in production, resulting in low efficiency and high costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of part of the structure of the dip coating box of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the filter device of this utility model;

[0019] Figure 5 This is a schematic diagram of the drying device of this utility model.

[0020] In the diagram: 1. Dipping tank; 2. Crystallizer; 3. Separator plate; 4. Guide roller; 5. Electric push rod; 6. Hinge frame; 7. Pressing roller; 8. Slide rail; 9. Sliding plate; 10. Water pump; 11. Filter box; 12. Drain pipe; 13. First filter plate; 14. Second filter plate; 15. Connecting pipe; 16. Threaded sleeve; 17. Drying shell; 18. Heating tube; 19. Fixing frame; 20. Positioning roller; 21. Clamping screw; 22. Connecting frame; 23. Clamping roller. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5 This utility model discloses an oxygen-free copper rod continuous casting equipment using an immersion coating method, comprising an immersion coating tank 1 and a crystallizer 2 disposed at one end of the immersion coating tank 1 for drawing the oxygen-free copper rod upwards. It also includes: multiple partition plates 3 disposed within the immersion coating tank 1, which divide the immersion coating tank 1 into multiple chambers, each partition plate 3 having a guide roller 4 at its top; a pressing device disposed on the immersion coating tank 1, the number of pressing devices matching the number of chambers in the immersion coating tank 1, used to press the oxygen-free copper rod into the immersion coating liquid; a drying device disposed at the other end of the immersion coating tank 1, used to dry the oxygen-free copper rod after immersion coating; and a filter device disposed on the side of the immersion coating tank 1 for filtering the immersion coating liquid.

[0023] Specifically, the pressing device includes an electric push rod 5, a hinge frame 6, and a pressing roller 7. The electric push rod 5 is mounted on the surface of the dip coating tank 1 via a bracket. The hinge frame 6 is fixedly mounted at the end of the telescopic shaft of the electric push rod 5. The pressing roller 7 is hinged to the hinge frame 6.

[0024] In this embodiment, three pressing devices are activated, causing the telescopic shaft of the electric push rod 5 to extend and the hinge frame 6 to move downwards. The hinge frame 6 drives the pressing roller 7 to contact the oxygen-free copper rod, pressing the oxygen-free copper rod downwards until it bends into a U-shape, so that the oxygen-free copper rod is evenly immersed in various coating solutions.

[0025] Specifically, the filtration device includes a slide rail 8, a sliding plate 9, a water pump 10, and a filter box 11. The slide rail 8 is horizontally arranged on the side of the dip coating tank 1. The sliding plate 9 is slidably sleeved on the surface of the slide rail 8. The water pump 10 and the filter box 11 are both fixedly arranged on the surface of the sliding plate 9. The water pump 10's water pump pipe is fixedly connected to the filter box 11, and the water pump 10's outlet faces into the dip coating tank 1. Multiple drain pipes 12 are connected to one side of the bottom of the dip coating tank 1 through a valve. The number of drain pipes 12 is adapted to the number of chambers in the dip coating tank 1, and the drain pipes 12 are connected to the filter box 11 through a connecting assembly.

[0026] In this embodiment, the valve of the drain pipe 12 at the bottom of the dip coating tank 1 is opened, allowing the dip coating solution to enter the filter tank 11 through the drain pipe 12 and the connecting pipe 15 for filtration. Then, the water pump 10 is started, and the water pump 10 circulates the dip coating solution in the filter tank 11 back into the dip coating tank 1. The service life of the dip coating solution can be extended through circulation filtration.

[0027] Specifically, the filter box 11 is provided with a first filter plate 13 and a second filter plate 14. The first filter plate 13 is located at the bottom of the second filter plate 14. The first filter plate 13 is used to filter impurities, and the second filter plate 14 is used to filter harmful components such as metal ions.

[0028] In this embodiment, when the immersion coating solution passes through the first filter plate 13 and the second filter plate 14, the mesh of the first filter plate 13 can filter out debris and impurities in the immersion coating solution. The second filter plate 14 is filled with aminophosphonic acid chelating resin, which has a very strong selective adsorption capacity and can efficiently remove trace metal ion impurities generated by the wear of copper rods in the immersion coating solution. The immersion coating solution after treatment can be restored to the standard of a new solution.

[0029] Specifically, the connecting components include a connecting pipe 15 and a threaded sleeve 16. The connecting pipe 15 is fixedly connected to the bottom of the filter box 11. Both the surface of the connecting pipe 15 and the drain pipe 12 are threaded. The two ends of the threaded sleeve 16 are respectively fitted onto the surface of the connecting pipe 15 and the drain pipe 12.

[0030] In this embodiment, by setting a slide rail 8 and a sliding plate 9, the sliding plate 9 moves along the slide rail 8, driving the filter box 11 and the water pump 10 to move, thereby enabling the connection and filtration of other dip coating tank 1 chambers. The connecting pipe 15 at the bottom of the filter box 11 is aligned with the drain pipe 12 of the other dip coating tank 1 chambers. Then, the threaded sleeve 16 on the drain pipe 12 is rotated, so that the threaded sleeve 16 moves along the thread on the surface of the drain pipe 12, and then is threadedly connected to the connecting pipe 15. The drain pipe 12 and the connecting pipe 15 are sealed and connected through the threaded sleeve 16.

[0031] Specifically, the drying device includes a drying shell 17, heating tubes 18, and a positioning component. The drying shell 17 is fixedly installed at the end of the dip coating tank 1 away from the crystallizer. Multiple heating tubes 18 are provided, and an array of multiple heating tubes 18 is fixedly installed inside the drying shell 17. The positioning component is fixedly installed at the end of the drying shell 17 away from the dip coating tank 1.

[0032] In this embodiment, after the dip coating is completed, the oxygen-free copper rod will enter the drying shell 17, and then the internal electric heating tube 18 will be heated to quickly dry the dip coating liquid on the surface of the oxygen-free copper rod.

[0033] Specifically, the positioning assembly includes a fixed frame 19, a positioning roller 20, a clamping screw 21, a connecting frame 22, and a clamping roller 23. The fixed frame 19 is fixedly mounted at one end of the drying shell 17. The positioning roller 20 is hinged to the bottom of the fixed frame 19. The connecting frame 22 is mounted at the top of the fixed frame 19. The clamping roller 23 is hinged inside the connecting frame 22. The clamping screw 21 is mounted on the surface of the connecting frame 22 via a bearing. The clamping screw 21 is threaded through the fixed frame 19.

[0034] In this embodiment, the end of the oxygen-free copper rod passes between the positioning roller 20 and the clamping roller 23. Then, the clamping screw 21 is rotated, causing the clamping screw 21 to rotate on the surface of the connecting frame 22 through the bearing. The clamping screw 21 moves downward through the threaded hole on the fixing frame 19, while driving the connecting frame 22 to move downward along the inner wall of the fixing frame 19. This causes the clamping roller 23 to clamp the oxygen-free copper rod, thereby positioning the end of the oxygen-free copper rod and keeping it horizontal during the drying process.

[0035] The working principle and usage process of this utility model are as follows: During use, the lower end of the crystallizer 2 is immersed in the molten copper in the holding furnace. Its upper end is connected to a vacuum pump. After the air inside the crystallizer 2 is removed to create negative pressure, the molten copper is slowly drawn into the crystallizer under the influence of this negative pressure. The crystallizer 2 contains circulating cooling water or other cooling media. Upon cooling, the molten copper quickly solidifies into solid copper on its inner wall. As the traction mechanism operates, the solidified copper is continuously pulled upwards, forming a continuous oxygen-free copper rod. The dip coating box 1 has two partition plates 3, dividing it into three chambers. Each chamber stores a different functional dip coating solution, such as a lubricating layer in the first section, an anti-oxidation layer in the second section, and an adhesion-promoting layer in the third section. The lubricating layer reduces friction loss during wire drawing, the anti-oxidation layer resists high-temperature oxidation during annealing, and the adhesion-promoting layer ensures the bonding stability of subsequent processing. After the dip coating box 1 is filled with... The oxygen-free copper rod passes laterally through the immersion coating tank 1, resting on the surface of the guide roller 4. Then, the three pressing devices are activated, causing the electric push rod 5 to extend its telescopic shaft and move the hinge frame 6 downwards. The hinge frame 6 drives the pressing roller 7 to contact the oxygen-free copper rod, pressing it downwards until it bends into a U-shape, allowing the oxygen-free copper rod to be evenly immersed in various immersion coating solutions. Afterwards, the oxygen-free copper rod passes through the drying device and is connected to an external traction device to pull the oxygen-free copper rod, causing it to move along the surfaces of the guide roller 4 and the pressing roller 7, while simultaneously driving the guide roller 4 and the pressing roller 7 to rotate. The oxygen-free copper rod then passes evenly through the three cavities, forming a multi-stage composite coating in a single continuous immersion coating process. After immersion coating is completed, the oxygen-free copper rod enters the drying shell 17, where it is then heated by the internal electric heating tube 18, which rapidly dries the immersion coating solution on the surface of the oxygen-free copper rod.

[0036] During the dip coating process, impurities such as copper filings can easily mix into the coating solution, leading to failure. To address this, a filter device is installed on the dip coating tank 1. During filtration, the valve of the drain pipe 12 at the bottom of the tank 1 is opened, allowing the coating solution to enter the filter tank 11 through the drain pipe 12 and connecting pipe 15. Then, the water pump 10 is started, circulating the coating solution from the filter tank 11 back into the tank 1. As the coating solution passes through the first filter plate 13 and the second filter plate 14, the mesh of the first filter plate 13 filters out debris and impurities. The second filter plate 14 is filled with aminophosphonic acid chelating resin, which has a strong selective adsorption capacity and can efficiently remove impurities such as copper rods from the coating solution. The trace metal ion impurities generated by wear can be restored to the standard of new solution after treatment. The service life of the immersion coating solution can be extended by circulating filtration. By setting slide rail 8 and sliding plate 9, the sliding plate 9 moves along slide rail 8, driving filter box 11 and water pump 10 to move, thereby connecting and filtering other immersion coating box 1 chambers. Align the connecting pipe 15 at the bottom of filter box 11 with the drain pipe 12 of the other immersion coating box 1 chambers, and then rotate the threaded sleeve 16 on drain pipe 12 so that the threaded sleeve 16 moves along the thread on the surface of drain pipe 12 and then connects with the connecting pipe 15 by thread. The drain pipe 12 and the connecting pipe 15 are sealed and connected by the threaded sleeve 16.

[0037] It should be noted that, in this document, terms such as "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 limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] 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. An apparatus for up-drawing an oxygen-free copper rod by a dip-coating method, comprising a dip-coating tank (1) and a mold (2) provided at one end of the dip-coating tank (1) for up-drawing an oxygen-free copper rod, characterized in that, Also includes: Multiple partition plates (3) are provided inside the dip coating tank (1), the partition plates (3) are used to divide the dip coating tank (1) into multiple chambers, and each partition plate (3) is provided with a guide roller (4) at its top. A pressing device is provided on the dip coating tank (1), the number of pressing devices being adapted to the number of cavities in the dip coating tank (1), the pressing device being used to press the oxygen-free copper rod into the dip coating liquid; A drying device is provided at the other end of the dip coating tank (1) for drying the oxygen-free copper rod after dip coating. A filter device is provided on the side of the dip coating tank (1) for filtering the dip coating liquid.

2. A continuous oxygen free copper rod drawing and casting apparatus by dip coating method as claimed in claim 1 wherein: The pressing device includes an electric push rod (5), a hinge frame (6) and a pressing roller (7). The electric push rod (5) is mounted on the surface of the dip coating tank (1) via a bracket. The hinge frame (6) is fixedly mounted at the end of the telescopic shaft of the electric push rod (5). The pressing roller (7) is hinged to the hinge frame (6).

3. A continuous oxygen free copper rod drawing and casting apparatus by dip coating method as claimed in claim 1 wherein: The filtration device includes a slide rail (8), a sliding plate (9), a water pump (10), and a filter box (11). The slide rail (8) is horizontally arranged on the side of the dip coating tank (1). The sliding plate (9) is slidably sleeved on the surface of the slide rail (8). The water pump (10) and the filter box (11) are both fixedly arranged on the surface of the sliding plate (9). The water pump (10)'s water pump pipe is fixedly connected to the filter box (11). The water pump (10)'s outlet faces into the dip coating tank (1). The bottom side of the dip coating tank (1) is connected to multiple drain pipes (12) via valves. The number of drain pipes (12) is adapted to the number of chambers in the dip coating tank (1). The drain pipes (12) are connected to the filter box (11) via connecting components.

4. The dip-coating oxygen-free copper rod continuous casting equipment according to claim 3, characterized in that: The filter box (11) is provided with a first filter plate (13) and a second filter plate (14). The first filter plate (13) is located at the bottom of the second filter plate (14). The first filter plate (13) is used to filter impurities, and the second filter plate (14) is used to filter harmful components such as metal ions.

5. The dip-coating oxygen-free copper rod continuous casting equipment according to claim 3, characterized in that: The connecting assembly includes a connecting pipe (15) and a threaded sleeve (16). The connecting pipe (15) is fixedly connected to the bottom of the filter box (11). The surfaces of the connecting pipe (15) and the drain pipe (12) are both threaded. The two ends of the threaded sleeve (16) are respectively fitted onto the surfaces of the connecting pipe (15) and the drain pipe (12).

6. The dip-coating oxygen-free copper rod continuous casting equipment according to claim 1, characterized in that: The drying device includes a drying shell (17), electric heating tubes (18), and a positioning component. The drying shell (17) is fixedly disposed at the end of the dip coating tank (1) away from the crystallizer. Multiple electric heating tubes (18) are provided, and an array of multiple electric heating tubes (18) is fixedly disposed inside the drying shell (17). The positioning component is fixedly disposed at the end of the drying shell (17) away from the dip coating tank (1).

7. The dip-coating oxygen-free copper rod continuous casting equipment according to claim 6, characterized in that: The positioning assembly includes a fixed frame (19), a positioning roller (20), a clamping screw (21), a connecting frame (22), and a clamping roller (23). The fixed frame (19) is fixedly mounted on one end of the drying shell (17). The positioning roller (20) is hinged to the bottom of the fixed frame (19). The connecting frame (22) is mounted on the top of the fixed frame (19). The clamping roller (23) is hinged inside the connecting frame (22). The clamping screw (21) is mounted on the surface of the connecting frame (22) through a bearing. The clamping screw (21) is threaded through the fixed frame (19).

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