CN111575747B

CN111575747B - Foil generation machine capable of effectively improving uniform density of copper foil surface

Info

Publication number: CN111575747B
Application number: CN202010540437.XA
Authority: CN
Inventors: 陆峰; 李铁林; 陆毅; 卢江; 张金彪
Original assignee: Ganzhou Yihao New Material Co ltd
Current assignee: Ganzhou Yihao New Material Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-10-01
Anticipated expiration: 2040-06-15
Also published as: CN111575747A

Abstract

The invention provides a foil forming machine for effectively improving the uniform density of a copper foil surface, which belongs to the technical field of copper foil production and comprises a liquid supply mechanism and a foil forming mechanism, wherein a liquid storage shell is fixedly connected to the outer side of the top of a first box body, the side wall of the top of the first box body is provided with a through hole, the through hole is arranged in the liquid storage shell, a driving piece is fixedly arranged at the bottom of the first box body, two ends of a rotating shaft are respectively and rotatably arranged at the top and the bottom of the first box body in a sealing way, the rotating shaft is in transmission connection with the output end of the driving piece, a stirring plate is fixedly connected with the rotating shaft, a liquid inlet pipe is arranged between an anode plate and a cathode roller, a liquid outlet pipe is arranged at the bottom of a second box body, and the foil forming machine effectively reduces the influence of bubbles in electrolyte on the uniformity of the cathode roller, effectively improving the uniformity of the copper foil surface of the copper foil produced on the cathode roller.

Description

Foil generation machine capable of effectively improving uniform density of copper foil surface

Technical Field

The invention relates to the technical field of copper foil production, in particular to a foil forming machine capable of effectively improving the uniform density of a copper foil surface.

Background

The electrolytic copper foil is prepared through rotating conductive cathode roller inside electrolytic bath filled with copper sulfate solution, setting anode plate in the bottom of the electrolytic bath, depositing copper ion onto the cathode roller under the traction of electric field, rotating the cathode roller out of the electrolytic bath, and stripping and winding copper foil from the cathode roller. In the production process of the copper foil, the instability of the copper sulfate solution can influence the foil surface uniformity of the copper foil generated on the cathode roller and influence the production quality of the copper foil.

Disclosure of Invention

In order to make up for the defects, the invention provides a foil forming machine for effectively improving the uniform density of a copper foil surface, and aims to solve the problem that the instability of a copper sulfate solution can influence the uniformity of the foil surface of a copper foil formed on a cathode roller.

The invention is realized by the following steps: a foil forming machine capable of effectively improving the uniform density of a copper foil surface comprises a liquid supply mechanism and a foil forming mechanism.

The liquid supply mechanism comprises a first box body, a liquid storage shell, a driving piece, a rotating shaft and a stirring plate, the liquid storage shell is fixedly connected to the outer side of the top of the first box body, a through hole is formed in the side wall of the top of the first box body, the through hole is formed in the inner portion of the liquid storage shell, the driving piece is fixedly installed at the bottom of the first box body, the two ends of the rotating shaft are respectively and hermetically rotated and installed at the top and the bottom of the first box body, the rotating shaft is connected with the output end of the driving piece in a transmission mode, and the stirring plate is fixedly connected to the rotating shaft.

The foil generating mechanism comprises a second box body, a cathode roller, an anode plate, a liquid inlet pipe and a liquid discharge pipe, wherein the cathode roller is rotatably installed on the side wall of the second box body, the anode plate is fixedly installed inside the second box body and is arranged to be an arc-shaped plate, the anode plate is arranged in a penetrating mode, the anode plate and the cathode roller are coaxially arranged, the liquid inlet pipe is communicated with the liquid storage shell, the liquid inlet pipe is arranged between the anode plate and the cathode roller, and the liquid discharge pipe is arranged at the bottom of the second box body.

In an embodiment of the invention, the through holes are arranged in an annular array on the first box body, the through holes are arranged at the top in the liquid storage shell, and the position where the liquid inlet pipe is communicated with the liquid storage shell is located at the bottom in the liquid storage shell.

In an embodiment of the invention, a box cover is arranged at the top of the first box body, a round hole is formed in the center of the box cover, a connecting rod is fixedly connected to the inner wall of the round hole, a mounting plate is fixedly connected to the connecting rod, and the top end of the rotating shaft is rotatably mounted on the mounting plate.

In one embodiment of the invention, at least four connecting rods are arranged in an annular array on the inner wall of the round hole.

In one embodiment of the invention, a guide pipe is fixedly connected to the inner wall of the circular hole, and the top height of the guide pipe is 15-20 cm greater than that of the box cover.

In an embodiment of the present invention, the stirring plates are arranged in an arc shape, a convex surface of each stirring plate is in the same rotation direction as the driving member, and at least two stirring plates are arranged on the rotating shaft in a central symmetry manner.

In an embodiment of the invention, the liquid inlet pipe includes branch pipes, a liquid outlet pipe and a first connecting pipe, the branch pipes are respectively arranged at two sides of the cathode roller, the branch pipes are arranged between the anode plate and the cathode roller, the liquid outlet pipe is communicated with the bottom of the branch pipes, the liquid outlet pipe is equidistantly arranged on the branch pipes, one ends of the branch pipes are communicated with the first connecting pipe, and one end of the first connecting pipe, which is far away from the branch pipes, is communicated with the liquid storage shell.

In an embodiment of the present invention, the drain pipe includes a second connecting pipe, a vertical pipe and a horizontal pipe, the vertical pipe and the horizontal pipe are arranged in a cross communication manner, liquid inlet holes are formed in the top of the vertical pipe and the top of the horizontal pipe, the second connecting pipe is arranged at the bottom of the vertical pipe and the bottom of the horizontal pipe, and the second connecting pipe is arranged in a communication manner with the vertical pipe and the horizontal pipe.

In an embodiment of the invention, at least four second connecting pipes are arranged, the second connecting pipes are uniformly arranged on the vertical pipes and the transverse pipes, a confluence piece is arranged at the bottom of each second connecting pipe, each confluence piece comprises a confluence pipe, a third connecting pipe and a fourth connecting pipe, the number of the third connecting pipes is the same as that of the second connecting pipes, the third connecting pipes are arranged outside the confluence pipes in an annular array manner, the third connecting pipes are communicated with the confluence pipes, the fourth connecting pipes are communicated with the bottoms of the confluence pipes, a water pump is fixedly installed at the bottom of the second box body, and a water inlet of the water pump is communicated with the fourth connecting pipes.

In one embodiment of the invention, a fifth connecting pipe is communicated with the top of the collecting pipe, and the top end of the fifth connecting pipe is communicated with the vertical pipe and the horizontal pipe.

The invention has the beneficial effects that: when the raw foil machine for effectively improving the uniform density of the copper foil surface is used, the copper sulfate solution is introduced into the first box body, the stirring plate drives the solution to rotate by driving the rotating shaft through the driving piece, when the copper sulfate solution rotates, because the mass of the bubbles in the solution is smaller, the bubbles in the solution can rotate in the middle of the first box body, the bubble-free solution rotates at the inner wall of the first box body, the solution at the inner wall of the first box body reaches the liquid storage shell through the through hole, then the solution in the liquid storage shell enters a second box body through a liquid inlet pipe for electrolysis, copper foil is produced on a cathode roller, the bubbles in the solution in the foil forming machine are low, the instability of copper sulfate electrolyte is reduced, the influence of the bubbles in the electrolyte on the uniformity of the copper foil on the cathode roller is reduced, and the uniformity of the copper foil surface of the copper foil on the cathode roller is effectively improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of the overall structure of a green foil machine provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of a partial cross-sectional structure of a liquid storage mechanism according to an embodiment of the invention;

FIG. 3 is a schematic top view of a cover according to an embodiment of the present invention;

FIG. 4 is a schematic top view of a mounting plate according to an embodiment of the present invention;

fig. 5 is a schematic top view of the interior of the first box according to the embodiment of the present invention;

FIG. 6 is a schematic view of a partial structure of a green foil mechanism provided in an embodiment of the present invention;

FIG. 7 is a schematic view of a partial structure in another direction of a foil generating mechanism according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a liquid inlet pipe according to an embodiment of the present invention;

FIG. 9 is a schematic view of a drain pipe according to an embodiment of the present invention;

FIG. 10 is a schematic top view of a cross tube and a vertical tube according to an embodiment of the present invention;

fig. 11 is a front view schematically illustrating a bus bar according to an embodiment of the present invention.

In the figure: 100-a liquid supply mechanism; 110-a first box; 111-a via; 120-box cover; 121-circular hole; 130-a reservoir housing; 140-a drive member; 150-a rotating shaft; 151-mounting plate; 152-a connecting rod; 160-stirring plate; 170-a catheter; 200-a green foil mechanism; 210-a second box; 220-cathode roll; 230-an anode plate; 240-liquid inlet pipe; 241-branch pipe; 242-downcomer; 243-first connection pipe; 250-drain pipe; 251-a second connecting tube; 252-a standpipe; 253-cross tube; 254-liquid inlet hole; 260-a bus bar; 261-a collecting pipe; 262-a third connecting tube; 263-fourth connecting pipe; 264-fifth connecting pipe; 270-water pump.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a technical solution: a foil forming machine capable of effectively improving the uniform density of a copper foil surface comprises a liquid supply mechanism 100 and a foil forming mechanism 200.

Referring to fig. 2, the liquid supply mechanism 100 includes a first tank 110, a liquid storage housing 130, a driving member 140, a rotating shaft 150 and a stirring plate 160, a bottom side wall of the liquid storage housing 130 is communicated with an external liquid supply device, the liquid storage housing 130 is fixedly welded on an outer side of a top of the first tank 110, a through hole 111 is formed in a top side wall of the first tank 110, the through hole 111 is disposed inside the liquid storage housing 130, the driving member 140 is a speed reduction motor, the driving member 140 is fixedly mounted at a bottom of the first tank 110, two ends of the rotating shaft 150 are respectively rotatably mounted at the top and the bottom of the first tank 110 in a sealing manner, the rotating shaft 150 is in transmission connection with an output end of the driving member 140, the stirring plate 160 is fixedly connected to the rotating shaft 150, a copper sulfate solution is introduced into the first tank 110 through the external liquid supply device, the rotating shaft 150 is driven by the driving member 140 to rotate, so that the stirring plate 160 on the rotating shaft 150 drives the solution inside the first tank 110 to rotate, so that bubbles in the solution rotate in the middle of the first tank 110 and the bubble-free solution rotates at the inner wall of the first tank 110.

It should be noted that, the sealing and rotating installation of the rotating shaft 150 and the first box 110 is performed by using the prior art, which is clear to those skilled in the art, and the specific installation structure of the rotating shaft 150 and the first box 110 is not described herein again.

In some specific embodiments, the through holes 111 are disposed in the first case 110 in an annular array, so that the copper sulfate solution at the inner wall of the first case 110 is rapidly discharged from the first case 110 and transferred into the reservoir housing 130, the through holes 111 are disposed at the top of the reservoir housing 130, the liquid inlet pipe 240 is disposed at the bottom of the reservoir housing 130 at a position where the liquid inlet pipe communicates with the reservoir housing 130, the through holes 111 are disposed at the top of the reservoir housing 130 so that the copper sulfate solution passing through the through holes 111 can stay inside the reservoir housing 130, and the liquid inlet pipe 240 is disposed at the bottom of the reservoir housing 130 at a position where the liquid inlet pipe communicates with the reservoir housing 130, so as to facilitate the discharge of the copper sulfate solution inside the reservoir housing 130.

Referring to fig. 3 and 4, in some specific embodiments, a case cover 120 is disposed on the top of a first case 110, a circular hole 121 is formed in the center of the case cover 120, the circular hole 121 is disposed to facilitate the air discharge of bubbles rotating in the middle of the first case 110, a connecting rod 152 is fixedly connected to the inner wall of the circular hole 121, a mounting plate 151 is fixedly connected to the connecting rod 152, at least four connecting rods 152 are disposed in an annular array on the inner wall of the circular hole 121, the plurality of connecting rods 152 are disposed to increase the fixing effect of the mounting plate 151, the top end of a rotating shaft 150 is rotatably mounted on the mounting plate 151, the mounting plate 151 facilitates the fixed mounting of the top of the rotating shaft 150, and the rotating shaft 150 is rotatably mounted on the mounting plate 151 through a bearing.

In some specific embodiments, the conduit 170 is fixedly connected to the inner wall of the circular hole 121, the height of the top of the conduit 170 is 15 to 20 cm greater than that of the case cover 120, when the solution in the first case 110 rotates, bubbles in the middle of the first case 110 may generate foam, and the arrangement of the conduit 170 enables the bubbles and the foam to be gathered in the conduit 170, so that the bubbles and the foam can be removed conveniently.

Referring to fig. 5, in some specific embodiments, the stirring plate 160 is configured to be circular arc-shaped, the convex surface of the stirring plate 160 and the rotation direction of the driving member 140 are the same, at least two stirring plates 160 are symmetrically disposed on the rotation shaft 150, the liquid supply mechanism 100 is configured to drive the solution in the first tank 110 to rotate, but not to stir the solution in the first tank 110, the circular arc-shaped stirring plate 160 is convenient to drive the solution in the first tank 110 to rotate, so that the copper sulfate solution in the first tank 110 rapidly reaches the inner wall of the first tank 110, because the mass of bubbles in the solution is small, the bubbles in the solution will rotate in the middle of the first tank 110, and the bubble-free solution rotates at the inner wall of the first tank 110, so that the bubbles in the solution in the first tank 110 are rapidly separated.

Referring to fig. 6 and 7, the foil generating mechanism 200 includes a second case 210, a cathode roller 220, an anode plate 230, a liquid inlet pipe 240 and a liquid outlet pipe 250, the cathode roller 220 is rotatably mounted on a side wall of the second case 210, the anode plate 230 is fixedly mounted inside the second case 210, the anode plate 230 is an arc-shaped plate, the anode plate 230 is arranged in a through manner, the anode plate 230 and the cathode roller 220 are coaxially arranged, the liquid inlet pipe 240 is communicated with the liquid storage case 130, the liquid inlet pipe 240 is arranged between the anode plate 230 and the cathode roller 220, and the liquid outlet pipe 250 is arranged at the bottom of the second case 210.

It should be noted that the specific structure and the working principle of the cathode roller 220 and the anode plate 230 in the foil generating mechanism 200 are the same as those of the conventional foil generating machine, which is clear to those skilled in the art and will not be described herein again, and the subsequent processing flow after the copper foil is generated on the cathode roller 220 adopts the prior art and will not be described herein again.

Referring to fig. 8, in some specific embodiments, the liquid inlet pipe 240 includes branch pipes 241, a liquid outlet pipe 242, and first connecting pipes 243, the branch pipes 241 are respectively disposed at two sides of the cathode roller 220, the branch pipes 241 are disposed between the anode plate 230 and the cathode roller 220, the liquid outlet pipe 242 is communicated with the bottoms of the branch pipes 241, the liquid outlet pipe 242 is disposed at equal intervals on the branch pipes 241, one ends of the branch pipes 241 are communicated with the first connecting pipe 243, one end of the first connecting pipe 243 far away from the branch pipes 241 is communicated with the liquid storage case 130, the two branch pipes 241 are disposed so that the solution in the liquid supply mechanism 100 is dispersed into the second tank 210 through the first connecting pipe 243, and the plurality of branch pipes 241 are disposed so that the liquid is uniformly supplied into the second tank 210, thereby reducing the turbulence of the liquid supplied into the second tank 210, reducing the turbulence in the electrolyte, improving the stability of the electrolyte, and further improving the uniformity of the production of the copper foil.

Referring to fig. 9, 10 and 11, in some embodiments, the drain pipe 250 includes a second connecting pipe 251, a vertical pipe 252 and a horizontal pipe 253, the vertical pipe 252 is disposed in cross communication with the horizontal pipe 253, liquid inlet holes 254 are formed at the top of the vertical pipe 252 and the horizontal pipe 253, the second connecting pipe 251 is disposed at the bottom of the vertical pipe 252 and the horizontal pipe 253, the second connecting pipe 251 is disposed in communication with the vertical pipe 252 and the horizontal pipe 253, at least four second connecting pipes 251 are disposed, the second connecting pipes 251 are uniformly disposed on the vertical pipe 252 and the horizontal pipe 253, a confluence member 260 is disposed at the bottom of the second connecting pipe 251, the confluence member 260 includes a confluence pipe 261, a third connecting pipe 262 and a fourth connecting pipe 263, the number of the third connecting pipes 262 and the second connecting pipes 251 is the same, the third connecting pipes 262 are disposed outside the confluence pipe 261 in an annular array, the third connecting pipes 262 are communicated with the confluence pipe 261, the fourth connecting pipe 263 is communicated with the bottom of the confluence pipe 261, the bottom of the second box 210 is fixedly provided with a water pump 270, a water inlet of the water pump 270 is communicated with a fourth connecting pipe 263, a vertical pipe 252 and a horizontal pipe 253 are arranged in a crossed manner, a liquid inlet hole 254 starts at equal distance between the vertical pipe 252 and the horizontal pipe 253, so that liquid discharging in the second box 210 is uniform, turbulence generated during liquid discharging is reduced, the stability of a solution in the second box 210 is improved, the uniformity of copper foil production is improved, the top of a collecting pipe 261 is communicated with a fifth connecting pipe 264, the top end of the fifth connecting pipe 264 is communicated with the vertical pipe 252 and the horizontal pipe 253, when the liquid discharging device is used, the collecting pipe 261 is pumped by the water pump 270, the solution in the vertical pipe 252 and the horizontal pipe 253 is drained into the collecting pipe 261 by the second connecting pipe 251 and the fifth connecting pipe 264, so that the flowing speed of electrolyte in each second connecting pipe 251 is the same, further, the liquid discharging pressure of each position of the vertical pipe 252 and the horizontal pipe 253 is close, and the turbulence of liquid discharging in the second box 210 is reduced, the stability of the electrolyte in the second case 210 is improved.

The working principle is as follows: during the use, let in copper sulfate solution in first box 110, drive pivot 150 through driving piece 140 and drive, make stirring board 160 drive solution and rotate, when copper sulfate solution rotates, because the bubble quality in the solution is less, the bubble in the solution can be rotatory at first box 110 middle part, the solution of no bubble rotates in first box 110 inner wall department, the solution of first box 110 inner wall department passes through in the through-hole 111 reachs stock solution shell 130, then the solution of stock solution shell 130 inside gets into in the second box 210 through feed liquor pipe 240 and electrolyzes, produce the copper foil on the cathode roll 220.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A foil forming machine for effectively improving the uniform density of a copper foil surface is characterized by comprising

The liquid supply mechanism (100) comprises a first box body (110), a liquid storage shell (130), a driving part (140), a rotating shaft (150) and a stirring plate (160), wherein the liquid storage shell (130) is fixedly connected to the outer side of the top of the first box body (110), a through hole (111) is formed in the side wall of the top of the first box body (110), the through hole (111) is formed in the liquid storage shell (130), the driving part (140) is fixedly installed at the bottom of the first box body (110), two ends of the rotating shaft (150) are respectively and rotatably installed at the top and the bottom of the first box body (110) in a sealing mode, the rotating shaft (150) is in transmission connection with the output end of the driving part (140), and the stirring plate (160) is fixedly connected to the rotating shaft (150);

the foil generating mechanism (200) comprises a second box body (210), a cathode roller (220), an anode plate (230), a liquid inlet pipe (240) and a liquid outlet pipe (250), wherein the cathode roller (220) is rotatably installed on the side wall of the second box body (210), the anode plate (230) is fixedly installed inside the second box body (210), the anode plate (230) is arranged to be an arc-shaped plate, the anode plate (230) is arranged in a penetrating manner, the anode plate (230) and the cathode roller (220) are coaxially arranged, the liquid inlet pipe (240) is communicated with the liquid storage shell (130), the liquid inlet pipe (240) is arranged between the anode plate (230) and the cathode roller (220), and the liquid outlet pipe (250) is arranged at the bottom of the second box body (210);

the top of the first box body (110) is provided with a box cover (120), a round hole (121) is formed in the center of the box cover (120), connecting rods (152) are fixedly connected to the inner wall of the round hole (121), mounting plates (151) are fixedly connected to the connecting rods (152), the top end of the rotating shaft (150) is rotatably mounted on the mounting plates (151), at least four connecting rods (152) are arranged on the inner wall of the round hole (121) in an annular array mode, guide pipes (170) are fixedly connected to the inner wall of the round hole (121), and the top height of each guide pipe (170) is larger than the height of the box cover (120) by 15 cm to 20 cm

2. The raw foil machine for effectively improving the uniform density of the copper foil surface according to claim 1, wherein the through holes (111) are arranged on the first box body (110) in an annular array, the through holes (111) are arranged at the top inside the liquid storage shell (130), and the liquid inlet pipe (240) is communicated with the liquid storage shell (130) and is arranged at the bottom inside the liquid storage shell (130).

3. The foil forming machine capable of effectively improving the uniform density of the copper foil surface according to claim 1, wherein the stirring plate (160) is configured to be a circular arc, the convex surface of the stirring plate (160) has the same rotation direction as the driving member (140), and at least two stirring plates (160) are arranged on the rotating shaft (150) in a central symmetry manner.

4. The green foil machine for effectively improving the uniform density of the copper foil surface according to claim 1, wherein the liquid inlet pipe (240) comprises a branch pipe (241), a liquid outlet pipe (242) and a first connecting pipe (243), the branch pipes (241) are respectively arranged at two sides of the cathode roller (220), the branch pipes (241) are arranged between the anode plate (230) and the cathode roller (220), the liquid outlet pipe (242) is communicated with the bottom of the branch pipe (241), the liquid outlet pipe (242) is arranged at equal intervals at the branch pipe (241), one end of each branch pipe (241) is communicated with the first connecting pipe (243), and one end of the first connecting pipe (243) far away from the branch pipe (241) is communicated with the liquid storage shell (130).

5. The crude foil machine for effectively improving the uniform density of the copper foil surface according to claim 1, wherein the liquid discharge pipe (250) comprises a second connecting pipe (251), a vertical pipe (252) and a horizontal pipe (253), the vertical pipe (252) and the horizontal pipe (253) are arranged in a cross communication manner, liquid inlet holes (254) are formed in the top portions of the vertical pipe (252) and the horizontal pipe (253), the second connecting pipe (251) is arranged at the bottom portions of the vertical pipe (252) and the horizontal pipe (253), and the second connecting pipe (251) is arranged in a communication manner with the vertical pipe (252) and the horizontal pipe (253).

6. The foil forming machine capable of effectively improving the uniform density of the copper foil surface according to claim 5, wherein the number of the second connecting pipes (251) is at least four, the second connecting pipes (251) are uniformly arranged on the vertical pipes (252) and the horizontal pipes (253), a confluence piece (260) is arranged at the bottom of the second connecting pipes (251), the confluence piece (260) comprises a confluence pipe (261), a third connecting pipe (262) and a fourth connecting pipe (263), the number of the third connecting pipes (262) is the same as that of the second connecting pipes (251), the annular array of the third connecting pipes (262) is arranged outside the confluence pipe (261), the third connecting pipe (262) is communicated with the confluence pipe (261), the fourth connecting pipe (263) is communicated with the bottom of the confluence pipe (261), a water pump (270) is fixedly arranged at the bottom of the second tank (210), the water inlet of the water pump (270) is communicated with the fourth connecting pipe (263).

7. The green foil machine capable of effectively improving the uniform density of the copper foil surface according to claim 6, wherein a fifth connecting pipe (264) is communicated with the top of the collecting pipe (261), and the top end of the fifth connecting pipe (264) is communicated with the vertical pipe (252) and the horizontal pipe (253).