Rolled copper foil outer surface chromium plating device

Abstract

The utility model relates to the technical field of rolled copper foil production, and discloses a rolled copper foil outer surface chromium plating device which comprises an ultrasonic cleaning box and an electroplating pool, and a drying assembly used for drying rolled copper foil is fixedly installed on one side of the top end of the ultrasonic cleaning box. Two clamping assemblies used for fixing rolled copper foil are fixedly connected to the lower portion of an inner cavity of the electroplating pool at equal intervals, a circulating water pump used for controlling flowing of electroplating liquid is fixedly installed on one side of the inner cavity of the electroplating pool, each clamping assembly comprises a cathode pressing roller fixedly connected to the lower portion of the inner cavity of the electroplating pool, and the front end and the rear end of each cathode pressing roller are fixedly connected with connecting rings. One sides of the two connecting rings are jointly and fixedly connected with a clamping plate, dust, oil stains and the like on the surface of the rolled copper foil are cleaned through an ultrasonic cleaning box, the cleaned rolled copper foil is dried through a drying assembly, and the rolled copper foil is fixed in electroplating liquid through a cathode pressing roller. And the fitting degree between the clamping plate and the cathode compression roller is ensured through the clamping plate.

Description

Technical Field

[0001] The utility model relates to the technical field of calendered copper foil production, and more specifically to a chromium plating device for the outer surface of calendered copper foil. Background Technique

[0002] Calendered copper foil is a product formed by repeatedly rolling and annealing high-precision copper strips (usually with a thickness less than 150 microns) using the principle of plastic processing (usually with a thickness between 4 - 100 microns and a width usually < 800 mm). Its ductility, bending resistance, conductivity, etc. are all superior to electroplated copper foil, and the copper purity is also higher than that of electroplated copper foil. Copper foil is an indispensable main raw material for manufacturing printed circuit boards (PCBs), (CCLs), and lithium-ion batteries. Since calendered copper foil will come into contact with air during storage, transportation, and processing, it is prone to oxidation, affecting its appearance and performance. Therefore, chromium plating treatment needs to be carried out on the surface of calendered copper foil to enhance its physical properties.

[0003] Deficiencies of the prior art: Before chromium plating treatment of calendered copper foil in the prior art, there may be impurities such as dust and oil stains on the surface. If not treated, it will cause uneven chromium plating on the surface of calendered copper-aluminum, affecting its chromium plating effect. At the same time, since calendered copper foil needs to be closely attached to the surface of the cathode roller during chromium plating, and the clamping structure in the prior art is not firm enough, it is easy to appear wrinkling or suspension phenomena, resulting in uneven chromium plating on the surface of calendered copper foil. Content of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a chromium plating device for the outer surface of calendered copper foil to solve the problems that the residue of impurities such as dust and oil stains on the surface of calendered copper foil in the above-mentioned background technique will affect its chromium plating effect, and the clamping structure in the prior art is not firm enough, which is easy to cause wrinkling or suspension of calendered copper foil, resulting in uneven chromium plating on the surface of calendered copper foil.

[0005] The utility model provides the following technical solution: A chromium plating device for the outer surface of calendered copper foil, including an ultrasonic cleaning tank and an electroplating bath fixedly installed on one side thereof, characterized in that: a drying component for drying calendered copper foil is fixedly installed on one side of the top of the ultrasonic cleaning tank; two clamping components for fixing calendered copper foil are fixedly connected at equal intervals in the lower part of the inner cavity of the electroplating bath; a circulating water pump for controlling the flow of electroplating solution is fixedly installed on one side of the inner cavity of the electroplating bath;

[0006] The clamping component includes a cathode pressure roller fixedly connected to the lower part of the inner cavity of the electroplating bath, connection rings are fixedly connected to both the front and rear ends of the cathode pressure roller, and a clamping plate is fixedly connected to one side of the two connection rings.

[0007] Preferably, the drying assembly includes a drying box fixedly installed on one side of the top of the ultrasonic cleaning tank. A number of drying fans are fixedly installed at equal intervals on the top of the drying box. A dust-proof net is fixedly connected to the top of the drying fan. A second guide rod is fixedly connected to the middle of the inner cavity of the drying box. A notch is formed on one side of the drying box close to the electroplating tank.

[0008] Preferably, the notch is located on the upper side of the electroplating tank, and the notch is connected and communicated with the inner cavity of the electroplating tank.

[0009] Preferably, connecting rods are fixedly connected to the middle parts of the front and rear ends of the cathode pressure roller, and the cathode pressure roller is fixedly connected to the lower part of the inner cavity of the electroplating tank through the connecting rods.

[0010] Preferably, a first guide rod is fixedly installed on one side of the top of the ultrasonic cleaning tank away from the drying assembly. Two first fixing rods and two second fixing rods are fixedly connected at equal intervals on the upper and lower parts of the inner cavity of the ultrasonic cleaning tank respectively.

[0011] Preferably, two limiting rods are fixedly installed at equal intervals on the top of the electroplating tank. A third guide rod is fixedly connected to one side of the inner cavity of the electroplating tank. Two power connection ports are fixedly connected at equal intervals at one end of the electroplating tank.

[0012] Preferably, the position of the power connection port corresponds to the position of the connecting rod and is connected and communicated.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model cleans the surface of the rolled copper foil through the ultrasonic cleaning tank, removes impurities such as dust and oil stains on its surface, ensures the uniformity of the subsequent electroplating effect. After cleaning, the rolled copper foil enters the drying assembly for drying. The rolled copper foil is wound around the outer surface of the second guide rod through the first fixing rod, and the residual water stains on its surface are dried by the drying fan to avoid affecting the chromium plating effect.

[0015] 2. The utility model fixes the rolled copper foil through the clamping assembly. After drying, the rolled copper foil is wound around the surface of one of the limiting rods through the notch and the third guide rod. The rolled copper foil is fixed in the electroplating solution in the electroplating tank by two cathode pressure rollers. At the same time, the fitting degree between the rolled copper foil and the surface of the cathode pressure roller is ensured by the clamping plate, ensuring the stability of the chromium plating process. And the electroplating solution is kept flowing in the electroplating tank by the circulating water pump, making the reaction on the surface of the rolled copper foil more sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 Structural schematic diagram of the drying component of the present utility model.

[0018] Figure 3 Structural schematic diagram of the clamping component of the present utility model.

[0019] Figure 4 Overall sectional structural schematic diagram of the present utility model.

[0020] Reference numerals: 1, ultrasonic cleaning tank; 2, first guide rod; 3, first fixing rod; 4, second fixing rod; 5, electroplating bath; 6, drying component; 61, drying box; 62, drying fan; 63, dust-proof net; 64, second guide rod; 65, notch; 7, limiting rod; 8, clamping component; 81, cathode pressure roller; 82, connecting rod; 83, connecting ring; 84, clamping plate; 9, circulating water pump; 10, third guide rod; 11, power connection port. Specific implementation manners

[0021] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. In addition, the forms of each structure described in the following implementation manners are only examples, and a chromium plating device for the outer surface of rolled copper foil involved in the present utility model is not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0022] The present utility model provides a chromium plating device for the outer surface of rolled copper foil, as Figure 1 - Figure 4 shown, which includes an ultrasonic cleaning tank 1 and an electroplating bath 5 fixedly installed on one side thereof. The surface of the rolled copper foil is cleaned by the ultrasonic cleaning tank 1. A drying component 6 for drying the rolled copper foil is fixedly installed on one side of the top of the ultrasonic cleaning tank 1. Two clamping components 8 for fixing the rolled copper foil are fixedly connected at equal intervals in the lower part of the inner cavity of the electroplating bath 5. A circulating water pump 9 for controlling the flow of the electroplating solution is fixedly installed on one side of the inner cavity of the electroplating bath 5. By means of the circulating water pump 9, the electroplating solution in the electroplating bath 5 can be kept flowing, enhancing the electroplating effect.

[0023] Further, as Figure 3 shown, the clamping component 8 includes a cathode pressure roller 81 fixedly connected to the lower part of the inner cavity of the electroplating bath 5. Connecting rings 83 are fixedly connected to both the front and rear ends of the cathode pressure roller 81. A clamping plate 84 is fixedly connected to one side of the two connecting rings 83.

[0024] Further, as Figure 2As shown in the figure, the drying assembly 6 includes a drying box 61 fixedly installed on one side of the top end of the ultrasonic cleaning tank 1. A number of drying fans 62 are fixedly installed at equal intervals on the top end of the drying box 61. A dust-proof net 63 is fixedly connected to the top end of the drying fan 62. A second guide rod 64 is fixedly connected to the middle part of the inner cavity of the drying box 61. After the calendered copper foil is cleaned, it enters the inner cavity of the drying box 61, and is dried by the drying fan 62. A notch 65 is opened on one side of the drying box 61 close to the electroplating bath 5. The notch 65 is located on the upper side of the electroplating bath 5. The notch 65 is connected and communicated with the inner cavity of the electroplating bath 5. After drying, the calendered copper foil enters the inner cavity of the electroplating bath 5 through the notch 65.

[0025] Further, as Figure 4 shown, connecting rods 82 are fixedly connected to the middle parts of the front and rear ends of the cathode roller 81. The cathode roller 81 is fixedly connected to the lower part of the inner cavity of the electroplating bath 5 through the connecting rods 82. The calendered copper foil is fixed in the electroplating solution by the cathode roller 81 to ensure the chromium plating effect on its surface.

[0026] Further, as Figure 1 shown, a first guide rod 2 is fixedly installed on one side of the top end of the ultrasonic cleaning tank 1 far from the drying assembly 6. Two first fixing rods 3 and two second fixing rods 4 are fixedly connected at equal intervals on the upper and lower parts of the inner cavity of the ultrasonic cleaning tank 1 respectively. The moving direction of the calendered copper foil is ensured by the first guide rod 2, the first fixing rods 3 and the two second fixing rods 4.

[0027] Further, as Figure 1 shown, two limiting rods 7 are fixedly installed at equal intervals on the top end of the electroplating bath 5. A third guide rod 10 is fixedly connected to one side of the inner cavity of the electroplating bath 5. Two power connection ports 11 are fixedly connected at equal intervals to one end of the electroplating bath 5. The positions of the power connection ports 11 correspond to and are connected and communicated with the positions of the connecting rods 82. The surface of the cathode roller 81 is charged through the power connection ports 11, so that the chromium ions in the electroplating solution move towards the cathode under the action of the electric field and are reduced to a chromium metal layer on the surface of the calendered copper foil.

[0028] Working principle of the utility model: First, the prepared rolled copper foil is introduced into the inner cavity of the ultrasonic cleaning tank 1 through the first guide rod 2. The rolled copper foil is ultrasonically cleaned in the inner cavity of the ultrasonic cleaning tank 1 by the first fixing rod 3 and the second fixing rod 4. After cleaning, the rolled copper foil enters the inner cavity of the drying box 61 and is wound around the surface of the second guide rod 64. The drying fan 62 is started, and it is dried in the drying box 61 through the drying fan 62 to clean the residual water stains on the surface. After drying, it is introduced into the inner cavity of the electroplating tank 5 through the notch 65 and the third guide rod 10. The stability of the rolled copper foil is increased by the limiting rod 7, and it is fixed in the plating solution in the inner cavity of the electroplating tank 5 by two cathode rollers 81. When the rolled copper foil is wound around the surface of the cathode roller 81, the tightness of the fit between the two is ensured by the mounting clamp plate 84. The cathode roller 81 is connected to the power connection port 11 through the connecting rod 82. The surface of the cathode roller 81 is charged through the power connection port 11, so that the chromium ions in the plating solution move towards the cathode under the action of the electric field and are reduced to a chromium metal layer on the surface of the rolled copper foil, completing the chromium plating operation on the surface of the rolled copper foil.

[0029] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0030] Secondly: In the attached drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0031] Finally: The above description is only the preferred embodiment of the utility model and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for chromium plating the outer surface of a rolled copper foil, comprising an ultrasonic cleaning box (1) and an electroplating tank (5) fixedly mounted on one side thereof, characterized in that: A drying assembly (6) for drying the rolled copper foil is fixedly installed on one side of the top of the ultrasonic cleaning box (1); two clamping assemblies (8) for fixing the rolled copper foil are fixedly connected at equal distances to the lower part of the inner cavity of the electroplating tank (5); and a circulating water pump (9) for controlling the flow of the electroplating solution is fixedly installed on one side of the inner cavity of the electroplating tank (5); The clamping assembly (8) comprises a cathode pressure roller (81) fixedly connected to the lower part of the inner cavity of the electroplating cell (5), the front and rear ends of the cathode pressure roller (81) are fixedly connected to connecting rings (83), and one side of the two connecting rings (83) is commonly fixedly connected to a clamping plate (84).

2. The device for chromium plating the outer surface of rolled copper foil according to claim 1, characterized in that: The drying assembly (6) comprises a drying box (61) fixedly mounted on one side of the top of the ultrasonic cleaning box (1); a plurality of drying fans (62) are fixedly mounted at equal distances on the top of the drying box (61); a dust screen (63) is fixedly connected to the top of the drying fan (62); a second guide rod (64) is fixedly connected to the middle of the inner cavity of the drying box (61); and a notch (65) is provided on one side of the drying box (61) close to the electroplating tank (5).

3. The device for chromium plating the outer surface of rolled copper foil according to claim 2, characterized in that: The notch (65) is located on one side above the electroplating pool (5), and the notch (65) is connected to and communicates with the inner cavity of the electroplating pool (5).

4. The device for chromium plating the outer surface of rolled copper foil according to claim 1, characterized in that: The middle parts of the front and rear ends of the cathode pressure roller (81) are fixedly connected to connecting rods (82), and the cathode pressure roller (81) is fixedly connected to the lower part of the inner cavity of the electroplating tank (5) through the connecting rods (82).

5. The device for chromium plating the outer surface of rolled copper foil according to claim 1, characterized in that: A first guide rod (2) is fixedly mounted on a side of the top of the ultrasonic cleaning box (1) away from the drying assembly (6), and two first fixing rods (3) and two second fixing rods (4) are fixedly connected at equal distances above and below the inner cavity of the ultrasonic cleaning box (1).

6. The device for chromium plating the outer surface of rolled copper foil according to claim 4, characterized in that: Two limit rods (7) are fixedly installed at equal distances on the top of the electroplating pool (5), a third guide rod (10) is fixedly connected to one side of the inner cavity of the electroplating pool (5), and two power connection ports (11) are fixedly connected to one end of the electroplating pool (5).

7. The device for chromium plating the outer surface of rolled copper foil according to claim 6, characterized in that: The position of the power connection port (11) corresponds to the position of the connecting rod (82) and they are connected to each other.

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