Novel electroplating roller

Abstract

The utility model discloses a novel electroplating roller, which relates to the technical field of production of electronic components and comprises a roller frame connected with a negative electrode of a direct current power supply, a rotatable electroplating roller is arranged on the roller frame, two ends of the electroplating roller are movably connected with the roller frame, an electroplating bath is arranged in the electroplating roller, and the electroplating bath is arranged in the electroplating roller. The left side and the right side of a tank body of the electroplating tank are respectively provided with an anode piece, an electroplating solution exchange device is arranged in the electroplating roller, the electroplating solution exchange device comprises a titanium metal shaft installed in the electroplating roller, the titanium metal shaft is connected with a positive electrode of a direct-current power supply, and an electroplating solution exchange channel is arranged in the titanium metal shaft. According to the novel electroplating roller disclosed by the utility model, metal ions and other components in a plating solution can be promoted to be dispersed by using the special liquid exchange device, so that the uniformity of the plating solution is improved, the deposition rate is accelerated, and the quality of a plating layer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic component production, in particular to a novel electroplating roller. Background Art

[0002] The principle of electroplating is that under the action of electricity, the anode loses electrons, and the metal ions that lose electrons diffuse into the plating solution, while the metal ions near the cathode gain electrons and are reduced to metal elements and attached to the surface. The diffusion of the plating solution during the electroplating process includes liquid phase mass transfer, electromigration, convection and diffusion. The exchange of plating solutions inside and outside the traditional electroplating drum is completed by the pores of the mesh, that is, the metal ions outside the drum enter the inside of the drum through the gaps in the mesh. Poor exchange efficiency will lead to the following disadvantages: ① The deposition speed is slow, and the metal ions consumed in the drum are difficult to be replenished in time from the fresh plating solution outside the drum, resulting in reduced electroplating efficiency; ② The tank voltage increases, the power loss increases, and the tank temperature rises faster. In order to achieve the required current density during the production process, a higher voltage needs to be added. At the same time, the increase in tank temperature often means poor electroplating quality; ③ The dispersibility and deep plating ability of the plating solution decrease, and the metal ions in the drum cannot be replenished in time, resulting in increased resistance of the plating solution. Therefore, the current distribution on the cathode surface is uneven, the dispersibility of the plating solution decreases, and the uniformity of the plating layer decreases, which cannot meet the requirements of parts with high-precision requirements for plating thickness; ④ The side reaction intensifies. During the reduction process of the cathode, the metal ions are mainly reduced to metal elements. When the metal ions cannot be replenished in time, hydrogen ions or other impurity metal ions will undergo a reduction reaction, resulting in reduced product plating quality. Although the current electroplating tank can be stirred and circulated to enhance the exchange of the plating solution. However, this method has gradually failed to meet the high requirements for electroplating efficiency and quality. Therefore, a new type of electroplating drum is proposed. Utility Model Content

[0003] Technical issues solved

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a novel electroplating roller.

[0005] Technical Solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel electroplating drum, comprising a drum frame connected to the negative electrode of a DC power supply, a rotatable electroplating drum is arranged on the drum frame, two ends of the electroplating drum are movably connected to the drum frame, an electroplating tank is arranged in the electroplating drum, an anode is placed on the left and right sides of the tank body of the electroplating tank, a plating solution exchange device is arranged inside the electroplating drum, the plating solution exchange device comprises a titanium metal shaft installed in the electroplating drum, the titanium metal shaft is connected to the positive electrode of the DC power supply, a plating solution exchange channel is arranged in the titanium metal shaft, and the plating solution exchange channel is arranged in the titanium metal shaft. One end of the exchange channel is connected to a one-way flow controller, the electroplating drum is placed on the drum frame, the drum frame is connected to the negative pole of the DC power supply, and the workpiece in the electroplating drum is electroplated. An anode is placed on each side of the electroplating tank, and the titanium metal shaft is connected to the positive pole of the DC power supply. When the DC power supply is powered on, the anode will provide metal cations to the plating solution. A new type of plating solution exchange device is set in the electroplating drum. The plating solution exchange device unidirectionally circulates the plating solution to prevent the workpiece from falling into the plating tank. The one-way flow controller connected to the plating solution exchange device is used to control the plating solution exchange rate, which is convenient for controlling the electroplating efficiency in the actual production process. The new type of electroplating drum of the utility model can promote the dispersion of metal ions and other components in the plating solution by using a special liquid exchange device, improve the uniformity of the plating solution, accelerate the deposition rate, and improve the quality of the coating.

[0007] Preferably, two ends of the outside of the electroplating drum are connected with driven gears.

[0008] Preferably, a rotatable driving rod is also provided on the drum frame, and a driving gear is fixedly connected to the driving rod, and the driving gear is meshed and linked with the driven gear.

[0009] Preferably, a connecting rod is provided on the roller frame.

[0010] Preferably, the electroplating drum is mounted on the drum frame via a bearing.

[0011] Beneficial effects:

[0012] Compared with the prior art, the new electroplating drum has the following beneficial effects:

[0013] The novel electroplating drum of the utility model can promote the dispersion of metal ions and other components in the plating solution by using a special liquid exchange device, thereby improving the uniformity of the plating solution, accelerating the deposition rate, and improving the quality of the plating layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

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

[0016] Figure 2 It is a side structural schematic diagram of the utility model.

[0017] In the figure:

[0018] 1. Roller frame; 2. Electroplating roller; 3. Titanium shaft; 4. Plating solution exchange channel; 5. Anode; 6. Driving rod; 7. Driving gear; 8. Connecting rod; 9. Bearing; 201. Driven gear. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2 As shown, the utility model provides a technical solution: a novel electroplating drum, comprising a drum frame 1 connected to the negative pole of a DC power supply, a rotatable electroplating drum 2 is arranged on the drum frame 1, both ends of the electroplating drum 2 are movably connected to the drum frame 1, an electroplating tank is arranged in the electroplating drum 2, an anode piece 5 is placed on the left and right sides of the tank body of the electroplating tank, a plating liquid exchange device is arranged inside the electroplating drum 2, the plating liquid exchange device comprises a titanium metal shaft 3 installed in the electroplating drum 2, the titanium metal shaft 3 is connected to the positive pole of the DC power supply, a plating liquid exchange channel 4 is arranged in the titanium metal shaft 3, one end of the plating liquid exchange channel 4 is connected to a one-way flow controller, the electroplating drum can promote the dispersion of metal ions and other components in the plating liquid by using a special liquid exchange device, thereby improving the uniformity of the plating liquid, accelerating the deposition rate, and improving the quality of the coating.

[0021] Please pay attention to Figure 1 and Figure 2 The two ends of the outside of the electroplating drum 2 are connected with driven gears 201 , and a rotatable driving rod 6 is also provided on the drum frame 1 , and a driving gear 7 is fixedly connected to the driving rod 6 , and the driving gear 7 is meshed and linked with the driven gear 201 .

[0022] Please pay attention to Figure 1 A connecting rod 8 is provided on the drum frame 1, and the electroplating drum 2 is installed on the drum frame 1 through a bearing 9.

[0023] Working principle: the electroplating drum 2 is placed on the drum frame, and the drum frame is connected to the negative pole of the DC power supply to realize the electroplating of the workpiece in the electroplating drum. An anode is placed on each side of the electroplating tank, and the titanium metal shaft 3 is connected to the positive pole of the DC power supply. When the DC power supply is energized, the anode will provide metal cations to the plating solution. A new type of plating solution exchange device is set in the electroplating drum 2. The plating solution exchange device unidirectionally circulates the plating solution to prevent the workpiece from falling into the plating tank. The unidirectional flow controller connected to the plating solution exchange device is used to control the plating solution exchange rate, which is convenient for controlling the electroplating efficiency in the actual production process. The new type of electroplating drum of the utility model can promote the dispersion of metal ions and other components in the plating solution by using a special liquid exchange device, improve the uniformity of the plating solution, accelerate the deposition rate, and improve the quality of the coating.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of electroplating drum, characterized by: The invention comprises a roller frame (1) connected to the negative electrode of a direct current power supply, a rotatable electroplating roller (2) being arranged on the roller frame (1), two ends of the electroplating roller (2) being movably connected to the roller frame (1), an electroplating tank being arranged in the electroplating roller (2), an anode member (5) being placed on the left and right sides of the tank body of the electroplating tank, a plating solution exchange device being arranged inside the electroplating roller (2), the plating solution exchange device comprising a titanium metal shaft (3) installed in the electroplating roller (2), the titanium metal shaft (3) being connected to the positive electrode of the direct current power supply, a plating solution exchange channel (4) being arranged in the titanium metal shaft (3), and one end of the plating solution exchange channel (4) being connected to a one-way flow controller.

2. A novel electroplating drum according to claim 1, characterized in that: The two ends of the outside of the electroplating drum (2) are connected to driven gears (201).

3. The novel electroplating drum according to claim 1 is characterized in that: The roller frame (1) is also provided with a rotatable driving rod (6), and a driving gear (7) is fixedly connected to the driving rod (6), and the driving gear (7) is meshed and linked with the driven gear (201).

4. The novel electroplating drum according to claim 1 is characterized in that: A connecting rod (8) is provided on the roller frame (1).

5. The novel electroplating drum according to claim 1 is characterized in that: The electroplating drum (2) is mounted on the drum frame (1) via a bearing (9).

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