Liquid feeding and distributing device for composite copper foil water plating line

Abstract

The utility model discloses a composite copper foil water plating line liquid feeding distribution device, which belongs to the technical field of composite copper foil processing, and comprises a base, one end of the base is fixedly connected with a plating bath, the other end of the base is fixedly connected with a liquid storage tank, one end of the liquid storage tank is provided with a liquid feeding assembly, and the top end of the liquid feeding assembly is communicated with a liquid feeding pipe. A flowmeter is arranged in the middle of the liquid feeding pipe, a liquid box is arranged at the top end of the base, the top end of the liquid box is hung on the surface of a roof through a hanging pull rod, a mounting frame is fixedly connected to the bottom end of the liquid box, a distribution assembly is mounted at the bottom end of the mounting frame, and a groove inlet liquid pipe is fixedly connected to an inner cavity of the mounting frame; the top end of the bath liquid inlet pipe is communicated with an inner cavity of the liquid box, and a precise stainless steel filter screen is arranged at a discharging port of the bath liquid inlet pipe, so that uniformity and consistency of a plating layer are guaranteed, compactness of the plating layer is improved, plating leakage pinholes and concave-convex points are reduced, and the phenomena of fish scale lines and bubble mixing are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite copper foil processing, in particular to a composite copper foil water electroplating line liquid distribution device. Background Art

[0002] The composite copper foil is a "sandwich" structure, with a 3-6μm polymer layer in the middle substrate and a copper coating of about 1μm on each surface. The copper coating is completed by magnetron sputtering and water plating. Due to the comprehensive advantages of composite copper foil such as high safety, low cost, and high capacity, it also has the performance of traditional pure copper electrolytic copper foil, and has gradually become a new type of negative electrode carrier for lithium-ion batteries. Composite copper foil is made into pole pieces with a certain width and a certain length. The uniformity of the lateral and longitudinal coating thickness (surface density uniformity) and consistency of the composite copper foil are very important, which is related to the quality assurance of the battery manufacturing process and the battery performance assurance.

[0003] The existing liquid structure of the composite copper foil water plating line does not take into account the uniformity of electroplating of wide composite copper foil, resulting in extremely poor lateral uniformity of the composite copper foil, causing the foil to curl and deform, making it unusable. At the same time, it is unable to buffer the impact force of the liquid flow, causing the foil to deform unevenly, produce fish scale patterns, bubbles, etc., and cause local copper deficiency in the electroplating area, which in turn causes uneven thickness of the electroplating layer, causing the seed film copper plating layer to further fall off on the basis of acid corrosion, causing irreversible electroplating effects. Therefore, we need to propose a liquid distribution device for the composite copper foil water electroplating line. Utility Model Content

[0004] The purpose of the utility model is to provide a composite copper foil water electroplating line liquid distribution device, through the setting of precision stainless steel filter screen, the liquid flow can be initially buffered, and the liquid flow can be filtered at the same time to improve the cleanliness of the electrolyte, the liquid flow is buffered again by the distribution component, the liquid flow direction is changed to front and back distribution, the thrust of the liquid flow in the pipeline is reduced, and the concentrated disturbance thrust of the original liquid replenishment scheme on the foil surface is changed, thereby ensuring the uniformity and consistency of the coating, improving the density of the coating, reducing the pinholes and concave and convex points caused by missed plating, and improving the fish scale pattern and bubble phenomenon, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid distribution device on a composite copper foil water electroplating line, comprising a base, one end of the base is fixedly connected to a plating tank, the other end of the base is fixedly connected to a liquid storage tank, one end of the liquid storage tank is provided with a liquid delivery component, the top of the liquid delivery component is connected to a liquid delivery pipe, the middle of the liquid delivery pipe is provided with a flow meter for detecting the liquid delivery flow rate, the top of the base is provided with a liquid tank, the top of the liquid tank is suspended on the surface of the roof through a hanging rod, the bottom end of the liquid tank is fixedly connected to a mounting frame, the bottom end of the mounting frame is installed with a distribution component for evenly distributing liquid, the inner cavity of the mounting frame is fixedly connected to a tank inlet pipe, the top of the tank inlet pipe is connected to the inner cavity of the liquid tank, the discharge port of the tank inlet pipe is provided with a precision stainless steel filter screen, and the inner cavity of the liquid tank is connected to one end of the liquid delivery pipe.

[0006] Preferably, the liquid delivery component includes a liquid supply pump, which is fixedly connected to the upper surface of the base through a mounting plate, the liquid delivery port of the liquid supply pump is connected to one end of a liquid delivery pipe, the liquid extraction port of the liquid supply pump is connected to a liquid extraction pipe, and the other end of the liquid extraction pipe passes through and extends to the inner cavity of the liquid storage tank.

[0007] Preferably, the distribution assembly includes a distribution box, which is located in the inner cavity of the electroplating tank, and the top of the distribution box is fixedly connected with connecting columns on all four sides, the top of the connecting columns is fixedly connected to the bottom of the mounting frame, and distribution holes are opened on both sides of the surface of the distribution box.

[0008] Preferably, the distribution holes are provided in a plurality of groups, and the distribution holes in the plurality of groups are arranged in a rectangular shape on the surface of the distribution box.

[0009] Preferably, a notch is provided on the surface of the liquid storage tank, and a transparent glass plate is provided in the inner cavity of the notch of the liquid storage tank.

[0010] Preferably, a liquid level sensor is installed in the inner cavity of the liquid storage tank, and the liquid level sensor is electrically connected to a liquid level alarm, and the liquid level alarm is installed on the outer surface of the liquid storage tank.

[0011] Preferably, two groups of the tank inlet liquid pipes are provided, and the two groups of the tank inlet liquid pipes are symmetrically distributed on the lower surface of the liquid tank.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a liquid distribution device on a composite copper foil water electroplating line. The flow rate of the liquid is controlled by the cooperation of a liquid delivery component and a flow meter. The liquid flow can be initially buffered by the arrangement of a precision stainless steel filter mesh screen, and the liquid flow is filtered at the same time to improve the cleanliness of the electrolyte. The liquid flow is buffered again by the distribution component, and the direction of the liquid flow is changed to front and back distribution, thereby reducing the thrust of the liquid flow in the pipeline and changing the concentrated disturbance thrust of the original liquid replenishment scheme on the foil surface, thereby ensuring the uniformity and consistency of the coating, improving the density of the coating, reducing missed plating pinholes and concave and convex points, and improving the phenomena of fish scale patterns and bubble stringing.

[0014] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when the suspension rod is removed;

[0017] Figure 3 It is a structural schematic diagram of the distribution component of the utility model;

[0018] Figure 4 It is a structural schematic diagram of a partial cross-sectional structure of the tank inlet liquid pipe of the utility model.

[0019] In the figure: 1. Base; 2. Electroplating tank; 3. Liquid storage tank; 4. Liquid delivery assembly; 41. Liquid supply pump; 42. Liquid extraction pipe; 5. Liquid delivery pipe; 6. Flow meter; 7. Liquid tank; 8. Mounting bracket; 9. Distribution assembly; 91. Distribution box; 92. Distribution hole; 10. Liquid inlet pipe; 11. Precision stainless steel filter screen; 12. Transparent glass plate; 13. Liquid level sensor; 14. Liquid level alarm. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4The utility model provides a technical solution: a liquid distribution device on a composite copper foil water electroplating line, comprising a base 1, one end of the base 1 is fixedly connected to an electroplating tank 2, the other end of the base 1 is fixedly connected to a liquid storage tank 3, one end of the liquid storage tank 3 is provided with a liquid delivery component 4, the top of the liquid delivery component 4 is connected to a liquid delivery pipe 5, the middle of the liquid delivery pipe 5 is provided with a flow meter 6 for detecting the liquid delivery flow rate, the top of the base 1 is provided with a liquid tank 7, the top of the liquid tank 7 is suspended on the surface of the roof through a hanging rod, the bottom end of the liquid tank 7 is fixedly connected to a mounting frame 8, the bottom end of the mounting frame 8 is installed with a distribution component 9 for evenly distributing liquid, the inner cavity of the mounting frame 8 is fixedly connected to a tank liquid inlet pipe 10, the top of the tank liquid inlet pipe 10 is connected to the inner cavity of the liquid tank 7, the discharge port of the tank liquid inlet pipe 10 is provided with a precision stainless steel filter screen 11, the inner cavity of the liquid tank 7 is connected to one end of the liquid delivery pipe 5;

[0022] Start the liquid delivery component 4 to extract the electrolyte in the liquid storage tank 3, and the liquid delivery component 4 delivers the liquid flow into the liquid tank 7 through the liquid delivery pipe 5. The flow rate of the liquid delivery can be observed through the flow meter 6. The liquid flow in the liquid tank 7 flows into the precision stainless steel filter mesh screen 11 through the tank inlet pipe 10, and the liquid flow is filtered and buffered by the precision stainless steel filter mesh screen 11. Subsequently, the liquid flow after preliminary buffering falls into the distribution component 9, and the impact force of the liquid flow is buffered again by the distribution component 9, and the direction of the liquid flow is changed to front and back distribution, thereby reducing the thrust of the liquid flow in the pipeline, and changing the original liquid replenishment scheme. The concentrated disturbance thrust on the foil surface, thereby ensuring the uniformity and consistency of the coating, improving the density of the coating, reducing missed plating pinholes and concave and convex points, and improving the fish scale pattern and bubble phenomenon.

[0023] The liquid delivery component 4 includes a liquid supply pump 41, which is fixedly connected to the upper surface of the base 1 through a mounting plate, a liquid delivery port of the liquid supply pump 41 is connected to one end of a liquid delivery tube 5, a liquid extraction port of the liquid supply pump 41 is connected to a liquid extraction tube 42, the other end of the liquid extraction tube 42 passes through and extends to the inner cavity of the liquid storage tank 3, and the liquid supply pump 41 is started to provide a driving force to extract the electrolyte in the liquid storage tank 3 through the liquid extraction tube 42, and the electrolyte is delivered into the liquid delivery tube 5 through the liquid delivery port.

[0024] The distribution assembly 9 includes a distribution box 91, which is located in the inner cavity of the electroplating tank 2. Connecting columns are fixedly connected to the four sides of the top of the distribution box 91. The top of the connecting column is fixedly connected to the bottom of the mounting frame 8. Distribution holes 92 are opened on both sides of the surface of the distribution box 91. The falling liquid flow is received by the distribution box 91, and the impact force of the liquid flow is buffered again. The liquid flow flows out through the distribution hole 92, and the direction of the liquid flow is changed to front and back distribution, thereby reducing the thrust of the liquid flow in the pipeline and changing the disturbance thrust concentrated on the foil surface by the original liquid replenishment scheme.

[0025] There are several groups of distribution holes 92 , which are arranged in a rectangular shape on the surface of the distribution box 91 . The distribution holes 92 are arranged to improve the uniformity of the distribution holes 92 in distributing the liquid flow.

[0026] A notch is provided on the surface of the liquid storage tank 3 , and a transparent glass plate 12 is provided in the inner cavity of the notch of the liquid storage tank 3 , so that the staff can observe the height of the liquid level in the liquid storage tank 3 through the transparent glass plate 12 from the outside.

[0027] A liquid level sensor 13 is installed in the inner cavity of the liquid storage tank 3. The liquid level sensor 13 is electrically connected to a liquid level alarm 14. The liquid level alarm 14 is installed on the outer surface of the liquid storage tank 3. The height of the liquid level in the liquid storage tank 3 is sensed by the liquid level sensor 13. When the liquid level reaches the alarm position, the liquid level sensor 13 is electrically connected to the liquid level alarm 14 to issue a prompt, prompting the staff to add liquid.

[0028] There are two groups of tank inlet liquid pipes 10, which are symmetrically distributed on the lower surface of the liquid box 7. By setting the number of tank inlet liquid pipes 10, the liquid flow can flow out through the two groups of tank inlet liquid pipes 10, reducing the pressure of the liquid flow.

[0029] When in use, the liquid supply pump 41 is started to extract the electrolyte in the liquid storage tank 3 through the liquid extraction pipe 42, and then the electrolyte is sent into the liquid tank 7 through the liquid delivery pipe 5. The flow meter 6 displays the flow of the liquid flow in the liquid delivery pipe 5. Through the cooperation of the flow meter 6 and the liquid supply pump 41, the liquid flow is accurately controlled. The liquid flow in the liquid tank 7 flows into the precision stainless steel filter screen 11 through two groups of tank liquid inlet pipes 10. The impact force of the liquid flow is initially buffered by the precision stainless steel filter screen 11, and the liquid flow is filtered to improve the cleanliness of the electrolyte. Then the liquid flow falls into the distribution box 91, and the impact of the liquid flow is The impact force is buffered again, and the liquid flows out through the distribution hole 92, changing the direction of the liquid flow to front and back distribution, reducing the thrust of the liquid flow in the pipeline, changing the disturbance thrust concentrated on the foil surface by the original liquid replenishment scheme, and achieving no liquid flow disturbance and external impact force under the liquid surface of the electroplating tank 2 for the seed film, and gradually and evenly thickening the front and rear sections of the coating, reducing damage to the seed film coating and liquid contamination caused by particle shedding, improving the electroplating efficiency and the uniformity of metal ion implantation and deposition, thereby ensuring the uniformity and consistency of the coating, improving the density of the coating, reducing missed plating pinholes and concave-convex points, and improving the phenomena of fish scale pattern and bubble string.

[0030] 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 liquid dispensing device for a composite copper foil water electroplating line, comprising a base (1), characterized in that: One end of the base (1) is fixedly connected to an electroplating tank (2), and the other end of the base (1) is fixedly connected to a liquid storage tank (3). A liquid delivery component (4) is provided at one end of the liquid storage tank (3). The top end of the liquid delivery component (4) is connected to a liquid delivery pipe (5). A flow meter (6) for detecting the liquid delivery flow rate is provided in the middle of the liquid delivery pipe (5). A liquid tank (7) is provided at the top end of the base (1). The top end of the liquid tank (7) is suspended on the roof through a suspension rod. The bottom end of the liquid tank (7) is fixedly connected to a mounting frame (8), the bottom end of the mounting frame (8) is installed with a distribution component (9) for evenly distributing the liquid, the inner cavity of the mounting frame (8) is fixedly connected to a tank liquid inlet pipe (10), the top end of the tank liquid inlet pipe (10) is connected to the inner cavity of the liquid tank (7), the discharge port of the tank liquid inlet pipe (10) is provided with a precision stainless steel filter screen (11), and the inner cavity of the liquid tank (7) is connected to one end of the liquid delivery pipe (5).

2. The liquid dispensing device for composite copper foil water electroplating line according to claim 1, characterized in that: The liquid delivery component (4) comprises a liquid supply pump (41), the liquid supply pump (41) being fixedly connected to the upper surface of the base (1) via a mounting plate, the liquid delivery port of the liquid supply pump (41) being connected to one end of a liquid delivery pipe (5), the liquid extraction port of the liquid supply pump (41) being connected to a liquid extraction pipe (42), the other end of the liquid extraction pipe (42) passing through and extending to the inner cavity of the liquid storage tank (3).

3. The liquid dispensing device for composite copper foil water electroplating line according to claim 1, characterized in that: The distribution assembly (9) includes a distribution box (91), which is located in the inner cavity of the electroplating tank (2). Connecting columns are fixedly connected to the four sides of the top of the distribution box (91), and the top of the connecting column is fixedly connected to the bottom of the mounting frame (8). Distribution holes (92) are opened on both sides of the surface of the distribution box (91).

4. The liquid dispensing device for composite copper foil water electroplating line according to claim 3 is characterized in that: The distribution holes (92) are arranged in a plurality of groups, and the plurality of distribution holes (92) are arranged in a rectangular shape on the surface of the distribution box (91).

5. The liquid dispensing device for composite copper foil water electroplating line according to claim 1, characterized in that: The surface of the liquid storage tank (3) is provided with a notch, and the inner cavity of the notch of the liquid storage tank (3) is provided with a transparent glass plate (12).

6. The liquid dispensing device for composite copper foil water electroplating line according to claim 1, characterized in that: A liquid level sensor (13) is installed in the inner cavity of the liquid storage tank (3), and the liquid level sensor (13) is electrically connected to a liquid level alarm (14), and the liquid level alarm (14) is installed on the outer surface of the liquid storage tank (3).

7. The liquid dispensing device for composite copper foil water electroplating line according to claim 1, characterized in that: Two groups of the tank inlet liquid pipes (10) are provided, and the two groups of the tank inlet liquid pipes (10) are symmetrically distributed on the lower surface of the liquid box (7).

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