CN220413560U - Electrolytic copper foil producing machine - Google Patents

Abstract

The application provides an electrolytic copper foil machine of producing foil, electrolytic copper foil machine of producing foil includes: an electrolytic tank, a cathode roller and a spraying device. Wherein the electrolytic cell is provided with an electrolytic cavity for containing electrolyte; the cathode roller is rotatably arranged in the electrolysis cavity, and the outer wall of the cathode roller comprises a first wall body immersed in electrolyte and a second wall body exposed in air; the spraying device is arranged above the cathode roller, the spraying range of the spraying device covers the cathode roller in the axial direction of the cathode roller, and the spraying device is used for spraying electrolyte so that the electrolyte sprayed out of the spraying device covers part of the second wall body. By applying the technical scheme, the problem of low production quality of the copper foil in the related technology can be effectively solved.

Description

Electrolytic copper foil producing machine

Technical Field

The application relates to the field of copper foil processing equipment, in particular to an electrolytic copper foil producing machine.

Background

Copper foil is a cathode electrolytic material, and is an important material for manufacturing Copper Clad Laminate (CCL) and Printed Circuit Board (PCB). In the current rapid development of the electronic information industry, electrolytic copper foil is called: a neural network for transmitting and communicating signals and power of electronic products.

The copper foil production system is mainly characterized in that a high-purity copper raw material is oxidized and chemically reacts with sulfuric acid to generate a copper sulfate solution, the copper sulfate solution and an auxiliary material additive are added into an electrolytic tank of an electrolytic copper foil production machine, the electrolytic copper foil production machine further comprises a cathode roller and an anode plate arranged in the electrolytic tank, and copper ions are deposited on the surface of the cathode roller to generate copper foil under the condition of electrification.

When the copper foil is produced, one part of the cathode roller is contacted with electrolyte, the other part of the cathode roller is exposed in the air, and the part exposed in the air is charged with static electricity, so that dust is easy to adhere to the cathode roller, the electrolytic copper foil is easy to cause abnormal problems such as pinholes, copper nodules and the like, and the production quality of the copper foil is affected.

Disclosure of Invention

The application provides an electrolytic copper foil producing machine which is used for solving the problem of low production quality of copper foil in the related technology.

The application provides an electrolytic copper foil raw foil machine, include: an electrolytic cell having an electrolytic cavity for containing an electrolyte;

the cathode roller is rotatably arranged in the electrolysis cavity, and the outer wall of the cathode roller comprises a first wall body immersed in electrolyte and a second wall body exposed in air;

and the spraying device is arranged above the cathode roller, the spraying range of the spraying device covers the cathode roller in the axial direction of the cathode roller, and the spraying device is used for spraying electrolyte so that part of the second wall body is covered by the electrolyte sprayed from the spraying device.

In some embodiments, the electrolytic cell includes a cathode roll in-cell side and a cathode roll out-cell side, and the electrolytic copper foil producing machine further includes a copper foil stripping device disposed adjacent the cathode roll out-cell side, and the spray device is disposed adjacent the cathode roll in-cell side.

In some embodiments, the spray device comprises a first spray pipe and a guide structure, the first spray pipe is arranged along the axial direction of the cathode roller, the first spray pipe is provided with a plurality of spray holes arranged at intervals in the axial direction of the first spray pipe, the guide structure is arranged at intervals with the first spray pipe, the spray holes are arranged towards the guide structure so that electrolyte is sprayed onto the guide structure, the bottom edge of the guide structure extends to the second wall, and the bottom edge of the guide structure is arranged close to the inlet groove side of the cathode roller.

In some embodiments, the distance between the bottom edge of the guide structure and the groove wall of the cathode roll out-groove side is H1, the distance between the bottom edge of the guide structure and the groove wall of the cathode roll in-groove side is H2, and H1 and H2 satisfy: h1 is less than H2.

In some embodiments, the distance between the bottom edge of the guide structure and the level of electrolyte in the cell is H3, the diameter of the cathode roll is H4, H3 and H4 satisfy: h3 is 0.3 or less: h4 is less than or equal to 0.5.

In some embodiments, the spray device further comprises a first mounting frame, the first spray pipe is arranged on the first mounting frame, a shielding structure is further arranged on the first mounting frame, the bottom edge of the shielding structure extends to the second wall body, the bottom edge of the shielding structure is close to the cathode roller groove entering side, and the first spray pipe is located between the shielding structure and the guiding structure.

In some embodiments, the spray device further comprises a second spray pipe extending along the axial direction of the cathode roller, the second spray pipe being provided with a first spray header group and a second spray header group;

the first spray header groups are arranged at intervals in the axial direction of the second spray pipe and face the first spray pipe;

the second spray nozzle groups are arranged at intervals in the axial direction of the second spray pipe and face the guide structure.

In some embodiments, the spray device further comprises a first mounting frame extending along the axial direction of the cathode roller, the first mounting frame comprises a first fixing portion and a first moving portion movably arranged on the first fixing portion, the first fixing portion is arranged on the cathode roller in a vertical direction in a avoidance mode, the first spray pipe and the second spray pipe are arranged on the first moving portion, the first moving portion is provided with a first spraying position and a first avoidance position, the first moving portion extends out of the first fixing portion in the first spraying position and is located above the cathode roller in the vertical direction, and the first moving portion is arranged on the cathode roller in the vertical direction in the first avoidance position.

In some embodiments, the guide structure includes a second mounting bracket and a guide plate disposed on the second mounting bracket, a bottom edge of the guide plate forms a bottom edge of the guide structure, the second mounting bracket extends along an axial direction of the cathode roller, the second mounting bracket includes a second fixing portion and a second moving portion movably disposed on the second fixing portion, the second fixing portion is disposed on the second moving portion to avoid the cathode roller in a vertical direction, the guide plate is disposed on the second moving portion, the second moving portion has a second spraying position and a second avoiding position, the second moving portion extends out of the second fixing portion in the second spraying position and is disposed above the cathode roller in the vertical direction, and the second moving portion is disposed on the second avoiding position to avoid the cathode roller in the vertical direction.

In some embodiments, the guide plate comprises a first plate body connected with the second fixing part, a second plate body connected with the first plate body, and a third plate body connected with the second plate body, wherein the first plate body and the third plate body are arranged in a staggered manner in the vertical direction, the second plate body is an inclined plate, and the bottom edge of the third plate body forms the bottom edge of the guide structure.

The electrolytic copper foil production machine provided by the application comprises: an electrolytic tank, a cathode roller and a spraying device. The electrolytic tank can contain electrolyte, and the outer wall of the cathode roller comprises a first wall body immersed in the electrolyte and a second wall body exposed in air. The spraying device is arranged above the cathode roller, electrolyte is circulated in the spraying device, the electrolyte can flow onto the second wall body after being sprayed out of the spraying device, and a liquid curtain is formed on the second wall body, so that part of the second wall body is covered, the part of the second wall body exposed in the air is reduced, the probability that an oxide layer is formed on the second wall body and impurities are adsorbed is further reduced, and the smoothness of the second wall body is improved. When the cathode roller rotates to enable the second wall body to be immersed in electrolyte, the smoothness of the second wall body is improved, so that the probability of copper foil attached to the second wall body to generate copper nodules and pinholes is greatly reduced, and the production quality of the copper foil is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic structural diagram of an electrolytic copper foil producing machine provided in an embodiment of the present application;

FIG. 2 is an enlarged schematic view of the electrolytic copper foil producing machine A of FIG. 1 according to the embodiment of the present application;

fig. 3 is a B-B cross-sectional view of the electrolytic copper foil producing machine of fig. 1 provided in an embodiment of the present application.

Reference numerals illustrate:

1-an electrolyte;

10-an electrolytic cell; 11-cathode roll in groove side; 12-cathode roll out side;

20-cathode roll; 21-a first wall; 22-a second wall;

30-spraying device;

31-a first shower; 311-spraying holes;

32-guiding structure;

321-a second mount; 3211-a second securing portion; 3212-a second movement;

322-guide plate; 3221-a first plate; 3222-a second plate; 3223-a third plate;

33-a first mount; 331-a first fixing portion; 332-a first moving part;

34-shielding structure;

35-a second shower; 351-a first showerhead set; 352-second nozzle group;

40-stripping roller;

50-an aftertreatment device;

60-electrolytic copper foil producing machine.

Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the copper foil industry, raw foil adopts an electrochemical deposition process, a cathode roller is used as a cathode, one half of the raw foil is soaked in electrolyte to produce raw foil, and the other half of the raw foil is exposed to air after being stripped, so that oxidation is easy to occur. In addition, the part exposed in the air is also charged with static electricity, so that dust and impurities in the air are easily adsorbed. Therefore, when the part rotates again to enter the electrolyte, the oxidation layer and impurities cannot be effectively removed, so that the copper foil can have abnormal problems such as pinholes, copper tumors and the like in the deposition process, and the product quality is affected.

The application provides an electrolytic copper foil machine of producing foil sprays electrolyte through setting up spray set to the part that exposes in the air to on the one hand reduce the probability that oxide layer generated, on the other hand reduce the probability that impurity adheres to, with the low problem of copper foil production quality among the solution correlation technique.

The electrolytic copper foil producing machine provided in the embodiment of the present application is described below with reference to the accompanying drawings. Fig. 1 is a schematic structural diagram of an electrolytic copper foil producing machine according to an embodiment of the present application.

As shown in fig. 1, the electrolytic copper foil producing machine 60 of the present embodiment includes: an electrolytic cell 10, a cathode roll 20 and a shower device 30.

Wherein the electrolytic cell 10 has an electrolytic chamber for containing an electrolyte 1; the cathode roller 20 is rotatably arranged in the electrolytic cavity, and the outer wall of the cathode roller 20 comprises a first wall body 21 immersed in the electrolyte 1 and a second wall body 22 exposed to air; the spraying device 30 is disposed above the cathode roll 20, and a spraying range of the spraying device 30 covers the cathode roll 20 in an axial direction of the cathode roll 20, and the spraying device 30 is used to spray the electrolyte 1 such that the electrolyte 1 sprayed from the spraying device 30 covers a part of the second wall 22.

By applying the technical scheme of the embodiment, the electrolytic copper foil producing machine comprises: an electrolytic cell 10, a cathode roll 20 and a shower device 30. The electrolytic cell 10 is capable of containing an electrolyte, and the outer wall of the cathode roll 20 includes a first wall 21 immersed in the electrolyte 1 and a second wall 22 exposed to air. The spraying device 30 is arranged above the cathode roller 20, electrolyte is circulated in the spraying device 30, the electrolyte can flow onto the second wall body 22 after being sprayed out from the spraying device 30, and a liquid curtain is formed on the second wall body 22, so that part of the second wall body 22 is covered, the part of the second wall body 22 exposed in the air is reduced, the probability that the second wall body 22 forms an oxide layer and adsorbs impurities is reduced, and the smoothness of the second wall body is improved. When the cathode roll 20 rotates such that the second wall 22 is immersed in the electrolyte, since the smoothness of the second wall 22 is improved, the probability of copper foil attached thereon to generate copper nodules and pinholes is greatly reduced, thereby contributing to the improvement of the production quality of the copper foil.

Further, since the spraying range of the spraying device 30 covers the cathode roller 20 in the axial direction of the cathode roller 20, the electrolyte sprayed from the inside of the spraying device 30 can cover the cathode roller 20 in the axial direction of the cathode roller 20 as much as possible, thereby further reducing the probability that the second wall 22 is oxidized and adsorbs impurities.

In addition, since the liquid sprayed from the spraying device 30 is electrolyte, the electrolyte can be continuously used as the electrolyte after flowing into the electrolytic tank 10 along the cathode roller 20, the components of the electrolyte in the electrolytic tank 10 are not affected, and the continuous electrolysis is facilitated.

As shown in fig. 1, the electrolytic cell 10 includes a cathode roll in-cell side 11 and a cathode roll out-cell side 12, and the electrolytic copper foil producing machine 60 further includes a copper foil peeling device disposed near the cathode roll out-cell side 12, and the shower device 30 is disposed near the cathode roll in-cell side 11.

The above-mentioned "the copper foil peeling means is disposed close to the cathode roll out-groove side 12" means that the distance between the copper foil peeling means and the cathode roll out-groove side 12 is smaller than the distance between the cathode roll in-groove side 11 of the copper foil peeling means. Similarly, the above-mentioned "the shower device 30 is disposed near the cathode roll inlet side 11" means that the distance between the shower device 30 and the cathode roll inlet side 11 is smaller than the distance between the shower device 30 and the cathode roll outlet side 12.

In the above-described structure, since the cathode roll 20 can rotate clockwise or counterclockwise in the electrolytic cell 10, the cathode roll 20 has an in-cell side turned into the electrolytic cell 10 and an out-cell side turned out from the electrolytic cell 10, and accordingly, the electrolytic cell 10 also has a cathode roll in-cell side 11 and a cathode roll out-cell side 12, and in this embodiment, the cathode roll 20 rotates clockwise, and the cathode roll in-cell side 11 and the cathode roll out-cell side 12 are shown in fig. 1. Specifically, after the copper foil on the first wall 21 is electrolyzed, the cathode roller 20 is rotated clockwise, at which time the first wall 21 is gradually rotated out of the electrolytic bath 10 and the second wall 22 is gradually rotated into the electrolytic bath 10. In this embodiment, the electrolytic copper foil producing machine 60 further includes a copper foil peeling device for peeling the electrolytic copper foil from the cathode roll 20, the copper foil peeling device being located near the cathode roll outlet side 12. Specifically, the copper foil peeling apparatus includes a peeling roller 40 by which the copper foil is taken out from the cathode roller 20.

Since the electrolytic copper foil is taken out by the peeling roller 40 and subjected to the post-treatment step, it is necessary to prevent the electrolytic solution discharged from the shower device 30 from flowing into the peeling roller 40 and affecting the post-treatment step of the copper foil. The spray device 30 is thus arranged close to the cathode roll inlet side 11, so that the electrolyte sprayed by the spray device 30 flows along the second wall 22 from the cathode roll inlet side 11 into the electrolytic cell 10.

The specific structure of the shower device 30 will be described with reference to the drawings. Fig. 2 is an enlarged schematic view of a portion a of the electrolytic copper foil producing machine of fig. 1 according to an embodiment of the present application.

As shown in fig. 1 and 2, in the present embodiment, the shower device 30 includes a first shower pipe 31 and a guide structure 32, the first shower pipe 31 is disposed along the axial direction of the cathode roll 20, the first shower pipe 31 is provided with a plurality of shower holes 311 disposed at intervals in the axial direction thereof, the guide structure 32 is disposed at intervals from the first shower pipe 31, the shower holes 311 are disposed toward the guide structure 32 so that the electrolyte 1 is sprayed onto the guide structure 32, the bottom edge of the guide structure 32 extends to the second wall 22, and the bottom edge of the guide structure 32 is disposed near the cathode roll inlet side 11.

In the above-mentioned structure, the spraying device 30 can spray the electrolyte through the spraying holes 311, and since the spraying holes are provided toward the guide structure 32, the electrolyte is sprayed onto the guide structure 32 first, and after being uniformly spread on the guide structure 32, flows in the vertical direction along the guide structure 32 under the action of gravity again, falls onto the second wall 22 from the bottom edge of the guide structure 32, and forms a liquid curtain on the second wall 22, thereby covering the second wall 22.

In addition, since the bottom edge of the guide structure 32 is disposed near the cathode roll inlet side 11, the electrolyte discharged from the inside of the guide structure 32 does not flow into the cathode roll outlet side 12, and peeling and post-treatment of the copper foil are not affected.

Specifically, as shown in fig. 1, in the present embodiment, the distance between the bottom edge of the guide structure 32 and the groove wall of the cathode roll-out groove side 12 is H1, the distance between the bottom edge of the guide structure 32 and the groove wall of the cathode roll-in groove side 11 is H2, and H1 and H2 satisfy: h1 is less than H2.

The bottom edge of the guide structure 32 is close to the cathode roll inlet groove side 11, so that the probability of electrolyte flowing into the cathode roll outlet groove side 12 is effectively reduced, and the stripping efficiency and pretreatment efficiency of the copper foil are further ensured.

Further, as shown in fig. 1, in the present embodiment, the distance between the bottom edge of the guide structure 32 and the liquid surface of the electrolyte 1 in the electrolytic cell 10 is H3, and the diameters of the cathode roller 20 are H4, and H3 and H4 satisfy: h3 is 0.3 or less: h4 is less than or equal to 0.5.

In the above structure, H3 and H4 satisfy: h3 is 0.3 or less: h4 is less than or equal to 0.5, namely the ratio of H3 to H4 is more than or equal to 0.3 and less than or equal to 0.5. The larger the ratio of H3 to H4, the higher the setting position of the bottom edge of the guide structure 32, and the larger the range of the electrolyte sprayed by the spraying device 30 to cover the second wall 22. The smaller the ratio of H3 to H4, the lower the position of the bottom edge of the guide structure 32, and correspondingly, the smaller the range over which the electrolyte sprayed by the spraying device 30 can cover the second wall 22. Therefore, the ratio of H3 to H4 is greater than or equal to 0.3 and less than or equal to 0.5, so as to ensure the coverage of the second wall 22 by the electrolyte sprayed by the spraying device 30.

Illustratively, H3: the value of H4 may be 0.3, 0.4, 0.5, or any other value, which is not limited herein.

As shown in fig. 1 and 2, in the present embodiment, the spraying device 30 further includes a first mounting frame 33, the first spraying pipe 31 is disposed on the first mounting frame 33, a shielding structure 34 is further disposed on the first mounting frame 33, a bottom edge of the shielding structure 34 extends to the second wall 22, the bottom edge of the shielding structure 34 is disposed near the cathode roll inlet groove side 11, and the first spraying pipe 31 is located between the shielding structure 34 and the guiding structure 32.

In the above structure, the shielding structure 34 can further shield the electrolyte sprayed from the spraying device 30, thereby further reducing the probability of the electrolyte flowing to the cathode roll outlet side 12, and ensuring that the peeling process and the post-treatment process of the copper foil are not affected.

It should be noted that the shielding structure 34 may be a shielding plate or a waterproof curtain.

It should be noted that, the electrolytic copper foil producing machine of the present embodiment further includes a post-processing device 50, and the post-processing device 50 may be used for post-processing the peeled copper foil, specifically, the post-processing step includes steps of cleaning the liquid on the copper foil, drying the copper foil, and the like. The post-treatment device 50 is provided between the peeling roller 40 and the cathode roller discharge side 12, and therefore, a shielding structure is provided to shield the electrolyte discharged from the shower device 30 so as to reduce the influence of the electrolyte on the post-treatment step.

As shown in fig. 1, in the present embodiment, the shower device 30 further includes a second shower pipe 35, the second shower pipe 35 extending in the axial direction of the cathode roll 20, and a first shower head group 351 and a second shower head group 352 are provided on the second shower pipe 35. Specifically, the first showerhead groups are disposed at intervals in the axial direction of the second shower pipe 35 and face the first shower pipe 31; the second nozzle groups 352 are disposed at intervals in the axial direction of the second shower pipe 35 and face the guide structure 32.

In the above structure, clean water can flow through the second shower pipe 35, and clean water can clean the first shower pipe 31 and the guide structure 32. Since the electrolyte discharged from the first shower pipe 31 is easily crystallized, the crystallization easily blocks the first shower pipe 31 to affect the spraying of the electrolyte. In addition, the crystals are adhered to the guide structure 32 to affect the uniformity of the formation of the liquid curtain and thus the covering effect of the electrolyte on the second wall 22, so that the first shower pipe 31 and the guide structure 32 need to be cleaned by spraying clean water through the second shower pipe 35.

Specifically, the first showerhead group can cover the first shower pipe 31 in the axial direction, cleaning the first shower pipe 31. The second head group 352 can cover the guide structure 32 in the axial direction, cleaning the guide structure 32.

Fig. 3 is a B-B cross-sectional view of the electrolytic copper foil producing machine of fig. 1 provided in the embodiment of the present application, where fig. 3 shows a state when the first moving part is located at the first spraying position and the first avoiding position, and also shows a state when the second moving part is located at the second spraying position and the second avoiding position.

As shown in fig. 1 to 3, in the present embodiment, the shower device 30 further includes a first mounting frame 33, the first mounting frame 33 extending in the axial direction of the cathode roller 20, the first mounting frame 33 including a first fixed portion 331 and a first moving portion 332 movably provided on the first fixed portion 331, the first shower pipe 31 and the second shower pipe 35 each being provided on the first moving portion 332, the first fixed portion 331 being retracted in the vertical direction from the cathode roller 20, the first moving portion 332 having a first shower position (shown as a solid line portion in fig. 3) and a first retracted position (shown as a broken line portion in fig. 3). In the first spraying position, the first moving portion 332 extends out of the first fixing portion 331 and is located above the cathode roller 20 in the vertical direction, and in the first avoiding position, the first moving portion 332 is away from the cathode roller 20 in the vertical direction.

In the above structure, the cathode roll 20 is required to be removed from the electrolytic cell 10 for cleaning and polishing after a certain period of use. Thus, a movable first mounting frame 33 is provided, the first mounting frame 33 including a first fixing portion 331 and a first moving portion 332 movably provided on the first fixing portion 331, the first shower pipe 31 and the second shower pipe 35 are both provided on the first moving portion 332, and the first moving portion 332 is maintained at a first shower position to shower the second wall 22 of the cathode roll 20 when the copper foil is produced. When the cathode roller 20 needs to be disassembled, the first moving part 332 is moved to the first avoiding position, and at this time, the first moving part 332 is avoided from the cathode roller 20 in the vertical direction, so that the cathode roller 20 can be smoothly taken out. The above structure makes it unnecessary to disassemble the first shower pipe 31 and the second shower pipe 35 to take out the cathode roll 20, simplifying the disassembling step of the cathode roll 20.

Accordingly, as shown in fig. 1 to 3, in the present embodiment, the guide structure 32 includes a second mounting frame 321 and a guide plate 322 provided on the second mounting frame 321, a bottom edge of the guide plate 322 forms a bottom edge of the guide structure 32, the second mounting frame 321 extends in an axial direction of the cathode roller 20, the second mounting frame 321 includes a second fixing portion 3211 and a second moving portion 3212 movably provided on the second fixing portion 3211, the guide plate 322 is provided on the second moving portion 3212, the second fixing portion 3211 is retracted to the cathode roller 20 in a vertical direction, the second moving portion 3212 has a second spraying position (shown as a solid line portion in fig. 3) and a second retracted position (shown as a broken line portion in fig. 3). In the second spraying position, the second moving portion 3212 extends out of the second fixing portion 3211 and is located above the cathode roller 20 in the vertical direction, and in the second avoiding position, the second moving portion 3212 is located away from the cathode roller 20 in the vertical direction.

In the above-described structure, the guide plate 322 can also move between the second spraying position and the second avoiding position following the second moving portion 3212, and when the copper foil is produced, the second moving portion 3212 is kept at the second spraying position, and at this time, the guide plate 322 can be provided corresponding to the first shower pipe 31 to guide the sprayed electrolyte. When the cathode roll 20 needs to be detached, the second moving portion 3212 is moved to the second avoidance position so that the cathode roll 20 can be smoothly detached.

Further, as shown in fig. 2, in the present embodiment, the guide plate 322 includes a first plate body 3221 connected to the second fixing portion 3211, a second plate body 3222 connected to the first plate body 3221, and a third plate body 3223 connected to the second plate body 3222, the first plate body 3221 and the third plate body 3223 are arranged in a staggered manner in a vertical direction, the second plate body 3222 is an inclined plate, and a bottom edge of the third plate body 3223 forms a bottom edge of the guide structure 32.

In the above-mentioned structure, compared with the third plate 3223, the first plate 3221 is farther from the first spray pipe 31 and the second spray pipe 35, so that the probability of liquid rebound can be effectively reduced, and the liquid curtain can be formed by spreading the liquid when the liquid is left on the first plate 3221 and the first plate 3221, so that the liquid layer falling on the second wall is more uniform. The bottom edge of the third plate 3223 is closer to the first shower pipe 31, which can increase the coverage of the liquid on the second wall 22, and further ensure the production quality of the copper foil.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be fixedly connected, or indirectly connected through intermediaries, for example, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are therefore not to be construed as limiting the present application.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims of this application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. An electrolytic copper foil producing machine, characterized by comprising:

-an electrolysis cell (10), the electrolysis cell (10) having an electrolysis chamber for containing an electrolyte (1);

a cathode roller (20) rotatably arranged in the electrolysis cavity, wherein the outer wall of the cathode roller (20) comprises a first wall body (21) immersed in the electrolyte (1) and a second wall body (22) exposed in the air;

and a spraying device (30) arranged above the cathode roller (20), wherein the spraying range of the spraying device (30) covers the cathode roller (20) in the axial direction of the cathode roller (20), and the spraying device (30) is used for spraying the electrolyte (1) so that the electrolyte (1) sprayed from the spraying device (30) covers part of the second wall body (22).

2. The electrolytic copper foil producing machine according to claim 1, wherein the electrolytic cell (10) includes a cathode roll in-cell side (11) and a cathode roll out-cell side (12), the electrolytic copper foil producing machine further includes a copper foil peeling device disposed near the cathode roll out-cell side (12), and the shower device (30) is disposed near the cathode roll in-cell side (11).

3. The electrolytic copper foil producing machine according to claim 2, wherein the spray device (30) comprises a first spray pipe (31) and a guide structure (32), the first spray pipe (31) is arranged along the axial direction of the cathode roll (20), the first spray pipe (31) is provided with a plurality of spray holes (311) arranged at intervals in the axial direction thereof, the guide structure (32) is arranged at intervals with the first spray pipe (31), the spray holes (311) are arranged towards the guide structure (32) so that the electrolyte (1) is sprayed onto the guide structure (32), the bottom edge of the guide structure (32) extends to the position of the second wall (22), and the bottom edge of the guide structure (32) is arranged close to the cathode roll groove entering side (11).

4. A foil producing machine for electrolytic copper foil according to claim 3, wherein the distance between the bottom edge of the guide structure (32) and the groove wall of the cathode roll groove outlet side (12) is H1, and the distance between the bottom edge of the guide structure (32) and the groove wall of the cathode roll groove inlet side (11) is H2, and H1 and H2 satisfy: h1 is less than H2.

5. The electrolytic copper foil producing machine according to claim 4, wherein a distance between a bottom edge of the guide structure (32) and a liquid surface of the electrolytic solution (1) in the electrolytic cell (10) is H3, and diameters of the cathode roller (20) are D, H3 and D satisfy:

0.3≤H3：H4≤0.5。

6. a foil producing machine for electrolytic copper foil according to claim 3, characterized in that the spraying device (30) further comprises a first mounting frame (33), the first spraying pipe (31) is arranged on the first mounting frame (33), a shielding structure (34) is further arranged on the first mounting frame (33), the bottom edge of the shielding structure (34) extends to the position of the second wall body (22), the bottom edge of the shielding structure (34) is arranged close to the cathode roll groove entering side (11), and the first spraying pipe (31) is arranged between the shielding structure (34) and the guiding structure (32).

7. A foil producing machine for electrolytic copper foil according to claim 3, wherein the spray device (30) further comprises a second spray pipe (35), the second spray pipe (35) extending in the axial direction of the cathode roller (20), the second spray pipe (35) being provided with a first spray header group (351) and a second spray header group (352);

the first spray header groups are arranged at intervals in the axial direction of the second spray pipe (35) and face the first spray pipe (31);

the second spray head groups (352) are arranged at intervals in the axial direction of the second spray pipe (35) and face the guide structure (32).

8. The electrolytic copper foil producing machine according to claim 7, wherein the spray device (30) further comprises a first mounting frame (33), the first mounting frame (33) extends in an axial direction of the cathode roller (20), the first mounting frame (33) comprises a first fixing portion (331) and a first moving portion (332) movably provided on the first fixing portion (331), the first fixing portion (331) is disposed away from the cathode roller (20) in a vertical direction, the first spray pipe (31) and the second spray pipe (35) are both disposed on the first moving portion (332), the first moving portion (332) has a first spray position in which the first moving portion (332) protrudes from the first fixing portion (331) and is located above the cathode roller (20) in the vertical direction, and a first avoidance position in which the first moving portion (332) is disposed away from the cathode roller (20) in the vertical direction.

9. The electrolytic copper foil producing machine according to claim 7, wherein the guide structure (32) includes a second mounting frame (321) and a guide plate (322) provided on the second mounting frame (321), a bottom edge of the guide plate (322) forms a bottom edge of the guide structure (32), the second mounting frame (321) extends along an axial direction of the cathode roller (20), the second mounting frame (321) includes a second fixing portion (3211) and a second moving portion (3212) movably provided on the second fixing portion (3211), the second fixing portion (3211) is retracted in a vertical direction to the cathode roller (20), the guide plate (322) is provided on the second moving portion (3212), the second moving portion (3212) has a second spraying position and a second retracted position, in the second spraying position, the second moving portion (3212) extends out of the second fixing portion (3211) and is provided in the vertical direction to the cathode roller (20) at the second retracted position in the vertical direction.

10. The electrolytic copper foil producing machine according to claim 9, wherein the guide plate (322) comprises a first plate body (3221) connected with the second fixing portion (3211), a second plate body (3222) connected with the first plate body (3221), and a third plate body (3223) connected with the second plate body (3222), the first plate body (3221) and the third plate body (3223) are arranged in a staggered manner in a vertical direction, the second plate body (3222) is an inclined plate, and a bottom edge of the third plate body (3223) forms a bottom edge of the guide structure (32).