CN211005708U

CN211005708U - Copper foil surface treatment device and equipment

Info

Publication number: CN211005708U
Application number: CN201922352651.8U
Authority: CN
Inventors: 周骏杰
Original assignee: Suzhou Fukuda Metal Co ltd
Current assignee: Suzhou Fukuda Metal Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-07-14
Anticipated expiration: 2029-12-24

Abstract

The utility model provides a copper foil surface treatment device and equipment, wherein the device comprises an electrolytic bath, a first power supply roller, an insulating roller and a second power supply roller which are sequentially arranged along the transmission direction of a copper foil, wherein the insulating roller is positioned in the electrolytic bath, and the first power supply roller and the second power supply roller are positioned outside the electrolytic bath; the device also comprises at least one anode plate group positioned between the copper foils on the two sides of the transmission, wherein each anode plate group comprises two anode plates and a first partition plate arranged between the two anode plates; the utility model discloses both realized handling the copper foil multistage, utilized the even formation of different current control alligatoring granule, obviously reduced the whole quantity of handling required electrolysis trough in the line again, reduced the required equipment cost of copper foil production process to greatly reduced the risk that the wrinkle takes place.

Description

Copper foil surface treatment device and equipment

Technical Field

The utility model relates to a copper foil surface treatment technical field, specifically speaking relates to a copper foil surface treatment device and equipment.

Background

At present, the copper-clad plate industry is one of the core materials of various computers, mobile phones, communication equipment, household appliances and other devices, copper foil is one of the core materials of the copper-clad plate, along with the rapid development of the electronic information industry, the demand of various types of copper foils is also increasing, and the market demand of electronic copper foils, particularly high-end high-performance copper foils is increasing.

In the surface treatment stage of the copper foil, in order to improve the uniformity of the surface treatment of the copper foil, a multi-stage roughening treatment means is generally adopted in the industry at present. Namely, a plurality of electrolytic tanks are provided, each electrolytic tank is internally provided with an electrode plate, and the current of different electrode plates is gradually increased along the transmission direction of the copper foil so as to control the uniform generation of coarsening particles. The treatment method results in an excessively long treatment line, excessive electrolysis baths and guide rollers, and high equipment investment and post-maintenance cost. On the other hand, the excessively long processing line leads to a significant increase in the risk of wrinkles during the production of copper foil.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a copper foil surface treatment device and equipment has reduced the quantity of electrolysis trough in the copper foil treatment line, reduces the required equipment cost of copper foil production.

In order to achieve the above object, according to one aspect of the present invention, there is provided a copper foil surface treatment apparatus comprising an electrolytic bath, and a first power supply roller, an insulating roller, and a second power supply roller which are sequentially arranged along a transmission direction of a copper foil, the insulating roller being located inside the electrolytic bath, the first power supply roller and the second power supply roller being located outside the electrolytic bath; the device also comprises at least one anode plate group positioned between the copper foils on the two sides of the transmission, and each anode plate group comprises two anode plates and a first partition plate arranged between the two anode plates.

Preferably, the copper foil includes a first side copper foil defined by the first power supply roller and the insulation roller, and a second side copper foil defined by the insulation roller and the second power supply roller; the first side copper foil is driven from the first power supply roller to the insulating roller, and the second side copper foil is driven from the insulating roller to the second power supply roller; the anode plate group is positioned between the first side copper foil and the second side copper foil.

Preferably, the two anode plates in one anode plate group form a channel, and the channel sequentially comprises a first section of channel, a second section of channel and a third section of channel along the direction from the first power supply roller to the insulating roller; the width of the first section of channel is equal to that of the third section of channel, and the width of the third section of channel is larger than that of the second section of channel.

Preferably, the anode plate group further includes two second separators and two third separators; the second separator is attached to the surfaces of the anode plate, which are positioned in the second section of channel and the third section of channel; the third clapboard is U-shaped, one side wall of the third clapboard is attached to one surface of the anode plate, which is far away from the second section of channel, the other side wall of the third clapboard forms an overflow port with the copper foil, the two second clapboards form a liquid supply port, and copper sulfate solution enters the channel between the two anode plates from the liquid supply port and overflows from the overflow port.

Preferably, the anode plate set further comprises two copper bars, each copper bar is attached to one of the anode plates, and the anode plates are electrically connected with an external power supply through the copper bars.

Preferably, the first partition board, the second partition board and the third partition board are all made of insulating materials.

Preferably, the bottom of the electrolytic bath is provided with a liquid outlet.

Preferably, the distance between the first separator and the insulating roller is greater than the distance between the anode plate and the insulating roller.

According to another aspect of the utility model, a copper foil surface treatment equipment is provided, equipment comprises a plurality of above-mentioned copper foil surface treatment device.

Compared with the prior art, the utility model beneficial effect lie in:

the utility model provides a copper foil surface treatment device and equipment are through setting up one or more anode plate group in an electrolysis trough, and each anode plate is organized and is included two anode plates, utilizes the copper foil as the negative pole, has both realized handling the copper foil multistage, utilizes the even formation of different current control alligatoring granule, obviously reduces the quantity of required electrolysis trough in the whole processing line again, has reduced the required equipment cost of copper foil production process to greatly reduced the risk that the wrinkle takes place.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic view showing a structure of a copper foil surface treatment apparatus in the prior art;

fig. 2 is a schematic structural view of a copper foil surface treatment device disclosed in an embodiment of the present invention;

fig. 3 is an enlarged schematic structural diagram of a partial area a in fig. 2.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, materials, devices, etc. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising," "having," and "providing" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.

As shown in fig. 1, in the prior art, in order to improve the uniformity of the surface treatment of the copper foil 101, the copper foil surface treatment equipment generally adopts a plurality of electrolytic cells 108, i.e. multi-stage treatment, wherein each electrolytic cell 108 is provided with an anode plate 106, and the anode plate 106 is electrically connected and fixed with the copper bar 111. And along the transmission direction of the copper foil 101, the current of the same anode plate 106 is the same, and the current in different anode plates 106 is gradually increased, so that the coarsening particles on the surface of the copper foil are controlled to be uniformly generated. FIG. 1 shows only two cells 108 due to space constraints. Each of the copper foil surface treatment apparatuses is composed of a plurality of copper foil surface treatment devices, each of which includes a first power supply roller 102, an insulating roller 103, and a second power supply roller 104, which are sequentially arranged along a transmission direction of a copper foil 101. In the equipment, the number of the electrolytic tanks 108 is large, so that the equipment investment and maintenance cost is high, and on the other hand, the treatment line is long, so that the risk of copper foil wrinkles is high.

Fig. 2 is a schematic structural view of the copper foil surface treatment apparatus disclosed in this embodiment, and fig. 2 is a front view, and as shown in fig. 2, the copper foil surface treatment apparatus in this embodiment includes an electrolytic bath 108, and a first power supply roller 102, an insulation roller 103, and a second power supply roller 104, which are sequentially disposed along a driving direction of a copper foil 101. The insulating roller 103 is disposed in the electrolytic bath 108, an electrolyte, i.e., a copper sulfate solution, is introduced into the electrolytic bath 108 during the surface treatment of the copper foil, and the insulating roller 103 is immersed in the electrolytic bath 108. The first feed roller 102 and the second feed roller 104 are located outside the electrolytic bath 108.

The device further comprises at least one anode plate group positioned between the copper foils 101 on two sides of the transmission, wherein each anode plate group comprises two anode plates 106 and a first separator arranged between the two anode plates 106. Specifically, the copper foil includes a first side copper foil defined by the first power supply roller and the insulation roller, and a second side copper foil defined by the insulation roller and the second power supply roller. The first side copper foil is driven from the first power supply roller toward the insulation roller, and the second side copper foil is driven from the insulation roller toward the second power supply roller. The anode plate group is located between the first side copper foil and the second side copper foil. In this embodiment, the anode plate sets are arranged side by side, but the present application is not limited thereto. Along the transmission direction of the copper foil 101, the current of the same anode plate 106 is the same, and the current of different anode plates 106 is gradually increased.

As shown in fig. 2 and 3, the device further includes two second partitions 109, two third partitions 110, and two copper bars 111. The two anode plates 106 in each anode plate group form a channel, and the channel sequentially comprises a first section of channel, a second section of channel and a third section of channel along the direction from the first power supply roller 102 to the insulating roller 103; the width of the first section of channel is equal to that of the third section of channel, and the width of the third section of channel is larger than that of the second section of channel, so that coarsening particles can be generated on the surface of the copper foil in transmission uniformly.

The second separator 109 is attached to the surfaces of the anode plates 106 in the second and third channels; the third separator 110 is U-shaped, one side wall of the third separator 110 is attached to a surface of the anode plate 106 away from the second-stage channel, the other side wall forms an overflow port with the copper foil 101, the two second separators 109 form a liquid supply port, the copper sulfate solution enters the channel between the two anode plates from the liquid supply port, namely the channel between the two second separators 109, flows into the overflow port 113 along the direction indicated by the arrow in fig. 2, and overflows from the overflow port 113, and the overflowed electrolyte is recycled. The dashed horizontal lines in fig. 2 and 3 indicate the critical level above which electrolyte in the cell 108 will overflow the overflow 113.

Each copper bar 111 is attached to one of the anode plates 106, the anode plate 106 is electrically connected to an external power source through the copper bar 111, and the copper bar 111 is electrically connected and fixed to the anode plate 106 to provide the anode plate 106 with a required current. The bottom of the electrolytic bath 108 is provided with a drain port 112. After the apparatus stops operating, the remaining electrolyte in the electrolytic bath 108 is discharged from the drain port 112.

The first partition 107, the second partition 109, and the third partition 110 are made of an insulating material. The distance between the first separator 107 and the insulating roller 103 is larger than the distance between the anode plate 106 and the insulating roller 103. By arranging the first separator 107 between the two anode plates 106, the problem of abnormal electroanalysis caused by potential difference of electrolytes on two sides of the first separator 107 due to different currents is avoided.

When the copper foil surface treatment device works, the copper foil 101 enters the electrolytic bath 108 through the first power supply roller 102, the trend of the copper foil 101 is changed through the insulating roller 103 arranged in the electrolytic bath 108, the copper foil is vertically downward trend when the copper foil is transmitted between the first power supply roller 102 and the insulating roller 103, and is vertically upward trend when the copper foil is transmitted between the insulating roller 103 and the second power supply roller 104. The electrolyte is introduced from the liquid supply port, enters the electrolytic bath 108, is branched by the first separator 107 in the electrolytic bath 108, and flows through the passages between the anode plates 106 and the copper foil 101 on both sides, and then overflows from the overflow port 113 above, and the electrolyte is recovered and reused. By arranging the first partition plate 107 to physically separate the electrolyte in the electrolytic tank 108, the problem of abnormal electrodeposition caused by potential difference between two sides of the first partition plate 107 is effectively avoided.

The embodiment of the utility model provides a still disclose a copper foil surface treatment equipment, this equipment comprises the copper foil surface treatment device that a plurality of above-mentioned arbitrary embodiments are disclosed, and wherein copper foil surface treatment device's detailed structural feature and advantage can refer to the description of above-mentioned embodiment, and this is no longer repeated here. In this apparatus, the current of all the anode plates 106 is gradually increased along the driving direction of the copper foil 101.

To sum up, the utility model discloses a copper foil surface treatment device and equipment have following advantage at least:

the copper foil surface treatment device and the equipment disclosed by the embodiment have the advantages that one or more anode plate groups are arranged in one electrolytic bath, each anode plate group comprises two anode plates, the copper foil is used as a cathode, the copper foil is subjected to multi-section treatment, coarsened particles are uniformly generated by using different currents, the number of the electrolytic baths required in the whole treatment line is obviously reduced, the equipment cost required in the production process of the copper foil is reduced, and the risk of wrinkles is greatly reduced.

In the description of the present invention, it is to be understood that the terms "bottom", "longitudinal", "lateral", "up", "down", "front", "back", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the structures or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, 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 and "several" means one or more unless otherwise specified.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A copper foil surface treatment device is characterized by comprising an electrolytic bath (108), and a first power supply roller (102), an insulation roller (103) and a second power supply roller (104) which are sequentially arranged along the transmission direction of a copper foil (101), wherein the insulation roller (103) is positioned in the electrolytic bath (108), and the first power supply roller (102) and the second power supply roller (104) are positioned outside the electrolytic bath (108); the device also comprises at least one anode plate group positioned between the copper foils on two sides of the transmission, wherein each anode plate group comprises two anode plates (106) and a first partition plate (107) arranged between the two anode plates (106).

2. The copper foil surface treatment apparatus according to claim 1, wherein the copper foil comprises a first side copper foil defined by a first power supply roller (102) and an insulation roller (103), and a second side copper foil defined by an insulation roller (103) and a second power supply roller (104), the first side copper foil being driven from the first power supply roller (102) toward the insulation roller (103), the second side copper foil being driven from the insulation roller (103) toward the second power supply roller (104); the anode plate group is positioned between the first side copper foil and the second side copper foil.

3. The copper foil surface treatment apparatus according to claim 1, wherein the two anode plates (106) in one of the anode plate groups form a channel which comprises a first channel section, a second channel section and a third channel section in sequence in a direction from the first power supply roll (102) to the insulation roll (103); the width of the first section of channel is equal to that of the third section of channel, and the width of the third section of channel is larger than that of the second section of channel.

4. The copper foil surface treatment apparatus according to claim 3, wherein the anode plate group further comprises two second separators (109) and two third separators (110); the second separator (109) is attached to the surfaces of the anode plate (106) in the second section of channel and the third section of channel; the third separator (110) is U-shaped, one side wall of the third separator (110) is attached to one surface of the anode plate (106) which is far away from the second section of channel, the other side wall of the third separator and the copper foil (101) form an overflow port, the two second separators (109) form a liquid supply port, and copper sulfate solution enters the channel between the two anode plates from the liquid supply port and overflows from the overflow port.

5. The copper foil surface treatment device according to claim 1, wherein the anode plate set further comprises two copper bars (111), each copper bar (111) is attached to one of the anode plates (106), and the anode plates (106) are electrically connected to an external power source through the copper bars (111).

6. The copper foil surface treatment apparatus according to claim 3, wherein the first separator (107), the second separator (109), and the third separator (110) are made of an insulating material.

7. The copper foil surface treatment apparatus according to claim 2, wherein a drain port (112) is provided at the bottom of the electrolytic bath (108).

8. The copper foil surface treatment apparatus according to claim 4, wherein a distance between the first separator (107) and the insulation roll (103) is larger than a distance between the anode plate (106) and the insulation roll (103).

9. An apparatus for surface treatment of copper foil, characterized in that the apparatus is composed of a plurality of the copper foil surface treatment devices according to any one of claims 1 to 8.