Anode box with low optical agent consumption

Abstract

The utility model discloses an anode box with low gloss agent consumption, which relates to the technical field of printed circuit board electro-coppering process and comprises a box body. The utility model provides an anode box with low gloss agent consumption, which is mainly used for optimizing a communication channel between the anode box and a plating solution of an electroplating main tank, and avoiding the consumption loss of an additive caused by excessive plating solution exchange by arranging a device which realizes self-sealing by virtue of gravity, and particularly, when the electroplating solution level in the main tank rises, the additive can be prevented from being blocked by the device. Due to the pressure difference of the two sides, a plating solution can enter the anode chamber from the main tank through the freely-moving valve, and when the liquid levels of the two sides are level, the valve is automatically closed under the action of gravity, when the electrolyte is injected into the main tank, the electroplating solution can automatically enter the anode box, and the electroplating solution and the liquid level of the main tank are kept balanced; the electroplating device is simple in structure, low in cost, free of space occupation, reliable in effect and capable of effectively reducing consumption of electroplating additives.

Description

Technical Field

[0001] The utility model relates to the technical field of electroplating copper process for printed circuit boards, and particularly relates to an anode box with low brightener consumption. Background Technique

[0002] Existing electroplating lines usually adopt low-consumption anodes or even more use neutral diaphragms in combination to reduce the consumption of electroplating additives. This is achieved by combining a PP or PVC frame with a neutral film and placing the anode in an anode box. In this way, the exchange of electroplating additives with the plating solution in the main tank can be reduced. Since the liquid level of the electroplating solution in the anode box needs to be kept consistent with that in the electroplating main tank, the plating solution in the anode box needs to be connected to the plating solution in the main tank.

[0003] The existing method is to directly set one or several holes with different diameters on the anode box to maintain the liquid level balance. Since an oxygen evolution reaction occurs on the anode surface, a large number of bubbles are generated, increasing the circulation of the plating solution in the anode box. This will enhance the exchange with the plating solution in the main tank, thereby increasing the consumption of the additives in the plating solution by the anode. To address the problem of increased brightener consumption, some manufacturers have adopted the method of opening holes and then configuring sealing screws. After the liquid level reaches equilibrium, the internal and external liquid level differences are adjusted manually. However, this method is inconvenient and greatly increases the complexity and cost of the anode box.

[0004] Therefore, in view of this, in view of the existing structural deficiencies, research and improvement are carried out, and an anode box with low brightener consumption is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an anode box with low brightener consumption to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An anode box with low brightener consumption, including a box body. Small electrolyte exchange holes are opened on both sides of the bottom of the box body. An opening and closing component is arranged at the end of the small electrolyte exchange holes. The opening and closing component includes a base, a notch, a rotating shaft, and a cut-off piece. A notch is opened on the front of the base, a rotating shaft is embedded in the notch, and a cut-off piece is integrally fixed at the bottom of the rotating shaft.

[0007] Furthermore, a sealing gasket is bonded to the opening end of the small electrolyte exchange hole. The sealing gasket is a hollow annular structure made of acid-resistant rubber material, and the middle hole of the sealing gasket corresponds to the small electrolyte exchange hole.

[0008] Furthermore, the base is made of pp or pvc material, and the back of the base is bonded and fixed above the opening of the small electrolyte exchange hole.

[0009] Further, the cut-off piece is rotationally engaged with the concave notch on the front of the base through a top rotating shaft, and the material density of the cut-off piece is greater than that of the electrolyte.

[0010] Further, when the cut-off piece is vertically downward under the action of gravity, it cooperates with the sealing gasket to seal the electrolyte exchange small hole.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model mainly optimizes the communication channel (i.e., the usual "hole") between the anode box and the plating solution in the main plating tank. By setting a self-sealing device relying on gravity, it can avoid the consumption loss of additives caused by excessive plating solution exchange. Specifically, when the plating liquid level in the main tank rises, due to the pressure difference on both sides, the plating solution can enter the anode chamber from the main tank through the freely movable valve. When the liquid levels on both sides are equal, the valve automatically closes under the action of gravity. When adding electrolyte to the main tank in this application, the anode box can automatically have plating solution enter and keep balance with the liquid level of the main tank. At the same time, when the electrolyte is discharged from the main tank, the plating solution in the anode box can also be basically discharged. The structure is simple, the cost is low, it does not occupy space, and the effect is reliable, which can effectively reduce the consumption of electroplating additives. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the overall state of the device of the utility model;

[0014] Figure 2 is a schematic structural diagram of the overall state II of the device of the utility model;

[0015] Figure 3 is a schematic structural diagram of the opening and closing assembly of the utility model.

[0016] In the figure: 1. Box body; 2. Electrolyte exchange small hole; 3. Sealing gasket; 4. Opening and closing assembly; 401. Base; 402. Concave notch; 403. Rotating shaft; 404. Cut-off piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further describes in detail the embodiments of the utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0018] Such as Figures 1 to 3As shown in the figure, it includes a box body 1. On both sides of the bottom of the box body 1, electrolyte exchange small holes 2 are provided. At the opening end of the electrolyte exchange small holes 2, a sealing gasket 3 is adhesively bonded. The sealing gasket 3 is a hollow annular structure made of acid-resistant rubber, and fluororubber is the best. The middle hole of the sealing gasket 3 corresponds to the electrolyte exchange small hole 2. An opening and closing component 4 is arranged at the end of the electrolyte exchange small hole 2. The opening and closing component 4 includes a base 401, a notch 402, a rotating shaft 403 and a cut-off piece 404. A notch 402 is provided on the front surface of the base 401, and a rotating shaft 403 is embedded in the notch 402. A cut-off piece 404 is integrally fixed at the bottom of the rotating shaft 403. By installing an opening and closing component 4 on both the inner and outer sides of the two electrolyte exchange small holes 2 at the bottom of the box body 1, the two-way flow of the electrolyte is realized. Specifically, when the electroplating liquid level in the main tank rises, due to the pressure difference on both sides, the plating solution can enter the anode chamber from the main tank through the freely movable cut-off piece 404 valve. When the liquid levels on both sides are equal, the cut-off piece 404 valve automatically closes under the action of gravity. By setting the self-sealing device realized by gravity as described above, the consumption loss of additives caused by excessive plating solution exchange can be avoided. The base 401 is made of pp or pvc material, and the back surface of the base 401 is adhesively fixed above the opening of the electrolyte exchange small hole 2. The cut-off piece 404 is rotationally matched with the notch 402 on the front surface of the base 401 through the top rotating shaft 403. The density of the material of the cut-off piece 404 is greater than that of the electrolyte. When the cut-off piece 404 vertically downward under the action of gravity, it cooperates with the sealing gasket 3 to seal the electrolyte exchange small hole 2.

[0019] Working principle: When using this anode box with low brightener consumption, during use, by installing an opening and closing component 4 on both the inner and outer sides of the two electrolyte exchange small holes 2 at the bottom of the box body 1, the two-way flow of the electrolyte is realized. Specifically, when the electroplating liquid level in the main tank rises, due to the pressure difference on both sides, the plating solution can enter the anode chamber from the main tank through the freely movable cut-off piece 404 valve. When the liquid levels on both sides are equal, the cut-off piece 404 valve automatically closes under the action of gravity. By setting the self-sealing device realized by gravity as described above, the consumption loss of additives caused by excessive plating solution exchange can be avoided.

[0020] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A low-light-agent consumption anode box, comprising a box body (1), characterized in that: Small holes (2) for electrolyte exchange are provided on both sides of the bottom of the box body (1); an opening and closing assembly (4) is provided at the end of the small hole (2) for electrolyte exchange; the opening and closing assembly (4) comprises a base (401), a recess (402), a rotating shaft (403) and a stop piece (404); a recess (402) is provided on the front of the base (401); a rotating shaft (403) is embedded in the recess (402); and a stop piece (404) is integrally fixed to the bottom of the rotating shaft (403).

2. The low-light-agent-consumption anode box according to claim 1, characterized in that: A sealing gasket (3) is bonded to the open end of the electrolyte exchange hole (2), and the sealing gasket (3) is a hollow ring structure, and the hole in the sealing gasket (3) corresponds to the electrolyte exchange hole (2).

3. The low-light-agent-consumption anode box according to claim 1, characterized in that: The back side of the base (401) is bonded and fixed to the top of the opening of the electrolyte exchange hole (2).

4. The low-light-agent-consumption anode box according to claim 1, characterized in that: The cut-off piece (404) is rotatably matched with the front notch (402) of the base (401) via the top rotating shaft (403), and the material density of the cut-off piece (404) is greater than that of the electrolyte.

5. The low-light-agent-consumption anode box according to claim 1, characterized in that: When the stop plate (404) is moved vertically downward under the action of gravity, it cooperates with the sealing pad (3) to seal the electrolyte exchange hole (2).

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