A drying apparatus for a continuous electroplating process

Abstract

This utility model provides a drying device for a continuous electroplating process, including a preheating device and a baking device. Both ends of the preheating and baking devices are provided with feeding through holes. The preheating device contains a drying component, which is equipped with a hot air blower connected to an air knife. The baking device contains a baking oven with an electric heating element. The inner wall of the baking device is also provided with a heat insulation layer. The cleaned electroplating strip passes through the preheating device under traction. The air knife in the preheating device blows hot air onto the electroplating strip to dry it, and the output hot air preheats the strip, gradually increasing its temperature to reduce thermal stress during baking. The electric heating element in the baking device ensures a more uniform temperature rise within the baking oven, resulting in even heating of the product. Furthermore, the heat insulation layer effectively reduces heat loss, increasing the roll speed of the electroplating strip and further improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of continuous electroplating equipment, and more particularly to a drying device for a continuous electroplating process. Background Technology

[0002] Electroplating is a process that uses chemical principles to deposit metal ions onto the surface of conductive objects such as metal terminals and pins. After the objects are electroplated in strip form, some electroplating solution will remain on the surface of the plating layer, so it needs to be cleaned. Even after cleaning, some moisture and chemical residues will remain on the surface of the plating layer. If not treated, the plating layer will be contaminated and oxidized, affecting its quality and appearance. Therefore, drying after electroplating is an important step in the electroplating process to ensure the surface quality of the electroplated terminals.

[0003] Existing preheating devices require slowing down the winding speed when drying and baking electroplated strips to ensure the drying and baking effect. For the above reasons, the efficiency of drying and baking electroplated strips after electroplating is not high. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a drying device for a continuous electroplating process, which solves the technical problem that the existing preheating device needs to slow down the speed of the roll to ensure the drying effect when drying the electroplating strip, resulting in low drying efficiency after electroplating.

[0006] (II) Technical Solution

[0007] The purpose of this utility model is to provide a drying device for a continuous electroplating process, which includes a preheating device and a baking device. The electroplating strip passes from the preheating device to the baking device. The preheating device is located adjacent to the baking device. Both ends of the preheating device and the baking device are provided with feeding through holes. A drying component is provided inside the preheating device. The drying component is provided with a hot air blower. The hot air blower is connected to an air knife. A baking oven is provided inside the baking oven. An electric heating tube is provided inside the baking oven. The inner wall of the baking device is also provided with a heat insulation layer.

[0008] Preferably, the preheating device further includes a drying chamber, a filter plate, and a drain pipe. The filter plate is located at the lower end of the drying chamber, and a drain pipe communicating with the outside is located below the filter plate.

[0009] Preferably, the drying assembly further includes an air supply pipe, a branch pipe, and a connecting pipe. One end of the air supply pipe is connected to a hot air blower, the other end of the air supply pipe is connected to the branch pipe, and the lower end of the branch pipe is connected to an air knife through a connecting pipe.

[0010] Preferably, the baking device further includes a baking oven, a lid, and a control box, with the lid located at the top of the baking oven and the control box located on the outside of the baking oven.

[0011] Preferably, a handle is provided on the outer side of the box lid, and a first heat insulation layer is provided on the lower end surface of the box lid.

[0012] Preferably, the inner wall of the baking oven is provided with a second insulation layer, and connecting protrusions are provided on both sides of the second insulation layer. A mounting bracket is provided at the upper end of the connecting protrusions, and two or more electric heating tubes are arranged sequentially from left to right on the mounting bracket.

[0013] Preferably, a power cord is also provided at the rear end of the baking oven.

[0014] Preferably, a temperature sensor is also provided at the upper end of the mounting bracket.

[0015] (III) Beneficial Effects

[0016] After cleaning, the electroplated strip passes through a preheating device under traction. The air knife in the preheating device dries the electroplated strip with hot air, and the output hot air preheats the strip, gradually increasing its temperature to reduce thermal stress that may occur during baking. The electric heating tube in the baking device makes the temperature rise in the baking oven more uniform, ensuring even heating of the product. In addition, the insulation layer effectively reduces heat loss. This structure enables the coil speed of the electroplated strip to be increased, further improving production efficiency. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0018] Figure 1 This is a 3D view of drying equipment used in continuous electroplating processes;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the drying device in a drying equipment used in a continuous electroplating process.

[0020] Figure 3 This is a schematic cross-sectional view of the baking device structure of a drying equipment used in a continuous electroplating process;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Preheating device; 10. Hot air blower; 11. Air knife; 12. Drying oven; 13. Filter plate; 14. Drain pipe; 15. Gas supply pipe; 16. Diverter pipe; 17. Connecting pipe; 2. Baking device; 20. Baking oven; 21. Oven cover; 22. Control box; 23. Handle; 24. First insulation layer; 25. Second insulation layer; 26. Connecting protrusion; 27. Mounting bracket; 28. Electric heating element; 29. ​​Power cord; 210. Temperature sensor; 211. Mounting screw; 3. Electroplating strip; 4. Feeding through hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] The following is in conjunction with the appendix Figures 1 to 3 To further describe, this utility model discloses a drying device for a continuous electroplating process, including a preheating device 1 and a baking device 2. After cleaning, the electroplating strip 3 passes from the preheating device 1 through the baking device 2 to complete the drying and baking process, and is then wound up by a winding device (not shown). The preheating device 1 is located adjacent to the baking device 2, and both ends of the preheating device 1 and the baking device 2 are provided with feeding through holes 4 to serve as the inlet and outlet for the electroplating strip 3. Thus, the electroplating strip 3 passes through the feeding through holes 4 on the preheating device 1 and the baking device 2 and completes the drying and baking process within the preheating device 1 and the baking device 2.

[0025] like Figure 2 As shown, the preheating device 1 is equipped with a drying component, which includes a hot air blower 10. In this embodiment, the hot air blower 10 is a conventional structure, comprising a blower, a heater, and a control circuit. The hot air blower 10 is connected to two sets of air knives 11 arranged opposite each other inside the drying chamber 12. The hot air generated by the hot air blower 10 is output from the air knives 11. Figure 2 As shown by the middle arrow →, the hot air output from both sides will blow onto the cleaned electroplating strip 3 to remove residual electroplating solution, moisture or impurities on the surface. At the same time, it will also preheat the passing electroplating strip 3 to a certain extent, so as to gradually increase the temperature of the electroplating strip 3 and reduce the thermal stress that may occur in the next baking process.

[0026] like Figure 3As shown, the baking device 2 is equipped with a baking oven 20, and the baking oven 20 is equipped with an electric heating tube 28. The electric heating tube 28 extends in a wavy shape from top to bottom. The electroplated material strip 3 passes through the U-shaped section concave in the middle of the electric heating tube 28 to make the temperature of the two ends of the electroplated material strip 3 more uniform and improve the heating effect. In addition, the electric heating tube 28 is a conventional tubular electric heating element. The inner wall of the baking device 2 is also equipped with a heat insulation layer, which is a ceramic fiber heat insulation material or a mineral wool heat insulation material to reduce heat loss.

[0027] In a preferred embodiment, the preheating device 1 further includes a drying chamber 12, a filter plate 13, and a drain pipe 14. The filter plate 13 is disposed at the bottom of the drying chamber 12. Specifically, the filter plate 13 is installed below the air knife 11 and is provided with multiple through holes penetrating its body so that the water carried by the electroplating strip 3 flows to the drain pipe 14 disposed at the bottom of the drying chamber 12, and the collected water is discharged from the drain pipe 14.

[0028] In a preferred embodiment, the drying assembly further includes an air supply pipe 15, a diversion pipe 16, and a connecting pipe 17. One end of the air supply pipe 15 is connected to a hot air blower 10, which is located outside the drying chamber 12. The other end of the air supply pipe 15 is connected to the diversion pipe 16. The lower end of the diversion pipe 16 is connected to the air knife 11 through the connecting pipe 17. The hot air flow output by the hot air blower 10 passes through the air supply pipe 15 to the diversion pipe 16, and then is transported from the diversion pipe 16 to the outlet of the air knife 11, and blown onto the cleaned electroplating strip 3, so as to initially remove moisture from the electroplating strip through the hot air flow.

[0029] In a preferred embodiment, the baking apparatus 2 further includes a baking oven 20, a lid 21, and a control box 22. The lid 21 is located at the upper end of the baking oven 20, and the control box 22 is located on the outside of the baking oven 20. The baking temperature can be controlled and adjusted through the control box 22.

[0030] In a preferred embodiment, a handle 23 is provided on the outer side of the lid 21, and a first insulation layer 24 is provided on the lower end face of the lid 21. The first insulation layer 24 on the lid 21, together with the second insulation layer 25 on the inner wall of the oven 20, forms an internal environment with relatively good heat insulation inside the oven 20.

[0031] In a preferred embodiment, the inner wall of the baking oven 20 is provided with a second insulation layer 25, and connecting protrusions 26 are provided on both sides of the second insulation layer 25. The upper end of the connecting protrusions 26 is fixedly provided with a mounting bracket 27 by mounting screws 211. On the mounting bracket 27, two or more electric heating tubes 28 are arranged sequentially and at equal intervals along the direction from the electroplating strip 3 entering the baking oven 20 to exiting the baking oven 20. The two ends of the electric heating tubes 28 are fixedly installed on the mounting bracket 27 by screws and connected to the power cord 29.

[0032] In a preferred embodiment, a power cord 29 is also provided at the rear end of the baking oven 20. The power cord 29 is connected to electrical components such as the electric heating tube 28 and the temperature sensor 210 to provide power.

[0033] In a preferred embodiment, a temperature sensor 210 is also provided at the upper end of the mounting bracket 27, and the temperature sensor 210 is electrically connected to the control box 22.

[0034] In summary, after cleaning, the electroplated strip passes through a preheating device under traction. The air knife within the preheating device dries the strip with hot air, and the output hot air preheats it, gradually increasing the strip's temperature to reduce potential thermal stress during baking. Meanwhile, the electric heating tubes in the baking device ensure a more uniform temperature rise within the oven, resulting in even heating of the product. This not only further removes residual moisture from the strip but also promotes bonding between the electroplated layer and the substrate, improving product quality. Furthermore, the insulation layer effectively reduces heat loss. This preheating followed by baking method increases the strip's roll speed, further enhancing production efficiency.

[0035] Although embodiments of the present invention have been shown above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications and variations to the above embodiments, but such modifications are all included within the broad scope of the foregoing disclosure, drawings and claims.

Claims

1. A drying apparatus for a continuous electroplating process, comprising a preheating device and a baking device, an electroplating material belt passing from the preheating device to the baking device, the preheating device being disposed adjacent to the baking device, characterized in that: Both ends of the preheating device and the baking device are provided with feeding through holes. The preheating device is provided with a drying component. The drying component is provided with a hot air blower. The hot air blower is connected to an air knife. The preheating device also includes a drying chamber, a filter plate, and a drain pipe. The filter plate is located at the bottom of the drying chamber, and a drain pipe connected to the outside is located below the filter plate. The drying assembly also includes an air supply pipe, a distribution pipe, and a connecting pipe. One end of the air supply pipe is connected to a hot air blower, and the other end of the air supply pipe is connected to the distribution pipe. The lower end of the distribution pipe is connected to an air knife through the connecting pipe. The baking device is equipped with a baking oven, which contains electric heating tubes. The inner wall of the baking device is also provided with a heat insulation layer. The baking device also includes a mounting frame, on which two or more electric heating tubes are arranged sequentially from left to right. The electric heating tubes extend in a wavy shape from top to bottom, and the electroplating strip passes through the U-shaped section that is concave in the middle of the electric heating tube.

2. The drying apparatus for a continuous electroplating process according to claim 1, characterized in that: The baking device also includes a baking oven, a lid, and a control box. The lid is located at the top of the baking oven, and the control box is located on the outside of the baking oven.

3. The drying apparatus for a continuous electroplating process according to claim 2, characterized in that: A handle is provided on the outer side of the box lid, and a first insulation layer is provided on the lower end surface of the box lid.

4. The drying apparatus for a continuous electroplating process according to claim 1, characterized by: The inner wall of the baking oven is provided with a second insulation layer, and connecting protrusions are provided on both sides of the second insulation layer. The mounting bracket is provided at the upper end of the connecting protrusions.

5. The drying apparatus for a continuous electroplating process according to claim 1, characterized in that: A power cord is also provided at the rear of the baking oven.

6. The drying equipment for a continuous electroplating process according to claim 1, characterized in that: A temperature sensor is also installed at the upper end of the mounting bracket.

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