Rolled copper foil surface roughening device

Through the combination of electrolyte roughening components and rough grinding rollers, the low production efficiency and electrolyte residues in the roughening process of the rolled copper foil are solved, and efficient surface roughening and drying treatment is achieved, ensuring the stability of the surface performance of the copper foil.

CN223255477UActive Publication Date: 2025-08-22JIANGSU GRANARY NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202421628859.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-11
Publication Date
2025-08-22
Estimated Expiration
2034-07-11

AI Technical Summary

Technical Problem

In the prior art, the production efficiency of the roughening process of the rolled copper foil is low and the residual surface electrolyte affects the performance, resulting in a degradation of the surface performance.

Method used

The electrolyte roughening assembly and rough grinding roller are used for double roughening treatment, combined with rinsing and hot air drying, forming a uniform rough structure and removing residual liquid.

Benefits of technology

The coarse efficiency of the surface of the calendered copper foil is improved, the surface performance is stable, and the impact of electrolyte residue on the surface performance is avoided.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rolled copper foil processing, and discloses a rolled copper foil surface coarsening device which comprises a supporting frame, two first fixing frames, an electrolyte coarsening assembly, a first guide rod and a rotating rod. A drying assembly used for drying roughened rolled copper foil is fixedly installed on the right side of the inner wall of the supporting frame, two connecting rods are rotationally connected to the other side of the inner wall of the supporting frame at equal intervals, water absorption sponges are fixedly connected to the outer surfaces of the connecting rods, and a water baffle is fixedly connected to one side of the top end of the drying assembly. Two connecting water pipes are fixedly connected to one side of the inner wall of the supporting frame at equal intervals, a plurality of flushing nozzles are fixedly connected to one sides of the connecting water pipes at equal intervals, double roughening treatment is conducted through the electrolyte roughening assembly and the rough grinding roller, the roughening efficiency is effectively improved, the surface of the electrolyte is flushed through the flushing nozzles, and the working efficiency is improved. And finally, drying treatment is conducted through the drying assembly.
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Description

Technical Field

[0001] The utility model relates to the technical field of rolled copper foil processing, and more specifically to a device for roughening the surface of rolled copper foil. Background Art

[0002] Rolled copper foil is a product made by repeatedly rolling and annealing high-precision copper strips using the principle of plastic processing. Its ductility, bending resistance and conductivity are superior to those of electrolytic copper foil. It is widely used in circuit boards, lithium batteries and other fields. Since the surface of rolled copper foil is very smooth and the surface roughness is generally only about 1 micron, the untreated copper foil surface is basically unable to be pressed with resin. Therefore, in order to improve the adhesion between the copper foil and the substrate, the surface roughness of the copper foil needs to be increased.

[0003] Deficiencies of the existing technology: The electroplating roughening process of rolled copper foil in the existing technology is relatively complicated, so multiple roughening treatments are required, resulting in low production efficiency of the roughening process of the rolled copper foil. At the same time, after the roughening is completed, there may be residual chemicals such as electrolyte on the surface of the rolled copper foil. If it is not dried in time, the surface performance of the rolled copper foil will deteriorate after a long time, affecting the normal use of the rolled copper foil. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a surface roughening device for rolled copper foil to solve the problem that multiple roughening treatments lead to low production efficiency of the rolled copper foil roughening process and the residual electrolyte substance on the surface of the rolled copper foil affects its surface performance.

[0005] The utility model provides the following technical solutions: a device for roughening the surface of a rolled copper foil, comprising a support frame and two first fixed frames equidistantly fixedly connected to the top end, the inner wall of the support frame being fixedly connected to an electrolyte roughening assembly for roughening the electrolyte of the rolled copper foil, the inner wall of the first fixed frame being fixedly connected to a first guide rod, the left side of the inner wall of the support frame being rotatably connected to a rotating rod, the outer surface of the rotating rod being fixedly connected to a coarse grinding roller for grinding and roughening the surface of the rolled copper foil, a drying assembly for drying the roughened rolled copper foil being fixedly installed on the right side of the inner wall of the support frame, two connecting rods being equidistantly rotatably connected to the other side of the inner wall of the support frame, the outer surface of the connecting rod being fixedly connected to a water-absorbing sponge, a water baffle being fixedly connected to the top side of the drying assembly, two connecting water pipes being equidistantly fixedly connected to one side of the inner wall of the support frame, and a plurality of flushing nozzles being equidistantly fixedly connected to one side of the connecting water pipe.

[0006] Preferably, the electrolyte coarsening assembly includes an electrolytic cell fixedly connected to the middle of the inner wall of the support frame, a cover fixedly connected to the top of the electrolytic cell, two feed ports equidistantly provided on the top of the cover, and two second guide rods equidistantly fixedly connected to one side of the inner cavity of the electrolytic cell.

[0007] Preferably, the drying component includes a drying box fixedly connected to the right side of the inner wall of the support frame, a first mounting plate fixedly connected to one end of the drying box, a ventilation opening is opened on one side of the inner cavity of the drying box, a hot air blower is fixedly installed on the top of the first mounting plate, the output end of the hot air blower is connected to the air outlet pipe, two fixed plates are fixedly connected at equal distances to the bottom end of the drying box, and a third guide rod is fixedly connected between the two fixed plates.

[0008] Preferably, the position of the vent corresponds to the position of the air outlet pipe and they are connected to each other.

[0009] Preferably, a second mounting plate is fixedly mounted on one end of the support frame, a first motor is mounted on the top end of the second mounting plate, and an output end of the first motor is fixedly connected to one end of the rotating rod.

[0010] Preferably, a second fixing frame is fixedly connected to one side of the inner wall of the support frame, two first locking rings are fixedly connected to the top of the second fixing frame at equal distances, and the inner cavities of the two first locking rings are provided with discharge rollers.

[0011] Preferably, a third fixing frame is fixedly connected to one side of the right end of the support frame, two second locking rings are fixedly connected to the top of the third fixing frame at equal distances, the inner cavities of the two second locking rings are provided with receiving rollers, and a second motor is fixedly installed on one side of the top of the third fixing frame, and the output end of the second motor is fixedly connected to one end of the receiving roller.

[0012] The technical effects and advantages of this utility model are:

[0013] 1. The utility model performs electrolytic and physical dual roughening treatment on the rolled copper foil by providing an electrolyte roughening component and a rough grinding roller. The surface of the rolled copper foil is first roughened by the rough grinding roller, which can effectively improve the electrolytic reaction and roughening effect of the surface of the rolled copper foil, thereby improving work efficiency. The electrolyte in the electrolytic cell undergoes an electrolytic reaction with the rolled copper foil, forming a uniform rough structure on its surface.

[0014] 2. The utility model is provided with a connecting water pipe connected to the external water pipe, and the rolled copper foil after the roughening is washed through the washing nozzle, that is, the residual electrolyte and the like on the surface are washed away. After the washing, the rolled copper foil passes between two water-absorbing sponges to remove excess moisture, and finally enters the drying component. The hot air is provided by the hot air blower and circulated in the inner cavity of the drying box for hot air drying treatment, so as to avoid long-term residual electrolyte or other liquids on the surface, which may affect the surface properties of the rolled copper foil. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic structural diagram of the utility model from another perspective.

[0017] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the present utility model.

[0018] Figure 4 This is a schematic structural diagram of the drying component of the present utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the electrolyte coarsening component of the utility model

[0020] The accompanying drawings are marked as follows: 1. support frame; 2. electrolyte coarsening assembly; 201. electrolytic cell; 202. sealing cover; 203. feed port; 204. second guide rod; 3. first fixed frame; 4. first guide rod; 5. rotating rod; 6. coarse grinding roller; 7. second mounting plate; 8. first motor; 9. second fixed frame; 10. first locking ring; 11. discharge roller; 12. drying assembly; 121. drying box; 122. first mounting plate; 123. vent; 124. hot air blower; 125. air outlet pipe; 126. fixed plate; 127. third guide rod; 13. connecting rod; 14. third fixed frame; 15. second locking ring; 16. receiving roller; 17. second motor; 18. water-absorbing sponge; 19. water baffle; 20. connecting water pipe; 21. flushing nozzle. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The surface roughening device for rolled copper foil involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] The utility model provides a device for roughening the surface of rolled copper foil. Figure 1 - Figure 3 As shown, it includes a support frame 1 and two first fixed frames 3 fixedly connected to the top thereof at equal distances, the inner wall of the support frame 1 is fixedly connected with an electrolyte coarsening component 2 for electrolytic coarsening of rolled copper foil, the inner wall of the first fixed frame 3 is fixedly connected with a first guide rod 4, the left side of the inner wall of the support frame 1 is rotatably connected with a rotating rod 5, the outer surface of the rotating rod 5 is fixedly connected with a coarse grinding roller 6 for grinding and roughening the surface of the rolled copper foil, the right side of the inner wall of the support frame 1 is fixedly installed with a drying component 12 for drying the rolled copper foil after roughening, two connecting rods 13 are rotatably connected to the other side of the inner wall of the support frame 1, the outer surface of the connecting rod 13 is fixedly connected with a water-absorbing sponge 18, a water baffle 19 is fixedly connected to one side of the top of the drying component 12, two connecting water pipes 20 are fixedly connected at equal distances to one side of the inner wall of the support frame 1, the connecting water pipe 20 is connected to an external water source, and a plurality of flushing nozzles 21 are fixedly connected to one side of the connecting water pipe 20 at equal distances.

[0023] Further, such as Figure 4 As shown, the electrolyte roughening component 2 includes an electrolytic cell 201 fixedly connected to the middle of the inner wall of the support frame 1, an electrolyte is added to the inner cavity of the electrolytic cell 201, a cover 202 is fixedly connected to the top of the electrolytic cell 201, two feed ports 203 are equidistantly provided on the top of the cover 202, and two second guide rods 204 are equidistantly fixedly connected to one side of the inner cavity of the electrolytic cell 201. The rolled copper foil is immersed in the electrolyte through the feed port 203 and the two guide rods 204, and an electrolytic reaction occurs between the electrolyte and the surface of the rolled copper foil to form a uniform rough structure on its surface.

[0024] Further, such as Figure 5 As shown, the drying component 12 includes a drying box 121 fixedly connected to the right side of the inner wall of the support frame 1, and a first mounting plate 122 is fixedly connected to one end of the drying box 121. A vent 123 is provided on one side of the inner cavity of the drying box 121, and a hot air blower 124 is fixedly installed on the top of the first mounting plate 122. The output end of the hot air blower 124 is connected to an air outlet pipe 125. The position of the vent 123 corresponds to the position of the air outlet pipe 125 and is connected to the hot air blower 124. The hot air blower 124 provides hot air to the inner cavity of the drying box 121 to dry the rolled copper foil. Two fixed plates 126 are fixedly connected to the bottom end of the drying box 121 at equal distances, and a third guide rod 127 is fixedly connected between the two fixed plates 126.

[0025] Further, such as Figure 1As shown, a second mounting plate 7 is fixedly mounted on one end of the support frame 1, and a first motor 8 is mounted on the top of the second mounting plate 7. The output end of the first motor 8 is fixedly connected to one end of the rotating rod 5. The first motor 8 enables the rotating rod 5 to drive the rough grinding roller 6 to rotate. The surface of the rolled copper foil is first physically roughened by the rough grinding roller 6, which can effectively improve the electrolytic reaction and roughening effect of its surface, thereby improving work efficiency.

[0026] Further, such as Figure 2 As shown, a second fixing frame 9 is fixedly connected to one side of the inner wall of the support frame 1, and two first locking rings 10 are fixedly connected to the top of the second fixing frame 9 at equal distances, and the inner cavities of the two first locking rings 10 are provided with discharging rollers 11. A third fixing frame 14 is fixedly connected to one side of the right end of the support frame 1, and two second locking rings 15 are fixedly connected to the top of the third fixing frame 14 at equal distances, and the inner cavities of the two second locking rings 15 are provided with receiving rollers 16. A second motor 17 is fixedly installed on one side of the top of the third fixing frame 14, and the output end of the second motor 17 is fixedly connected to one end of the receiving roller 16.

[0027] The working principle of the present invention is as follows: first, the unroughened rolled copper foil is wound on the outer surface of the discharge roller 11, one end of which passes through the inner side of the coarse grinding roller 6 and the outer surface of one of the first guide rods 4. The first motor 8 causes the rotating rod 5 to drive the coarse grinding roller 6 to rotate. The surface of the rolled copper foil is first physically roughened by the coarse grinding roller 6. After the grinding is completed, it enters the inner cavity of the electrolytic cell 201 through the feed port 203 and passes through the bottom of the two second guide rods so that it can be immersed in the electrolyte in the inner cavity of the electrolytic cell 201. The electrolyte reacts with the surface of the rolled copper foil to form a uniform rough structure on its surface. After the electrolytic roughening is completed, it is connected to the inner cavity of the drying component 12 through another first guide rod 4. Before entering the inner cavity of the drying component 12, it first passes through the two connecting water pipes 20, which are connected to an external water source, and rinses the surface of the rolled copper foil through the flushing nozzle 21 to rinse off the residual electrolyte on the surface. Then, it passes between the two absorbent sponges 18 to remove excess moisture. After entering the inner cavity of the drying box 121, the hot air blower 124 is started. The hot air blower 124 provides hot air to the inner cavity of the drying box 121 through the air outlet pipe 125 and the vent 123. The surface of the rolled copper foil is dried by the circulating hot air. After the treatment, the rolled copper foil is wound on the surface of the receiving roller 16. The rolled copper foil after the roughening treatment is collected by the rotation of the second motor 17.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0029] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for roughening the surface of a rolled copper foil, comprising a support frame (1) and two first fixing frames (3) fixedly connected to the top of the support frame at equal distances, characterized in that: The inner wall of the support frame (1) is fixedly connected to an electrolyte roughening assembly (2) for electrolytic roughening of rolled copper foil, the inner wall of the first fixed frame (3) is fixedly connected to a first guide rod (4), the left side of the inner wall of the support frame (1) is rotatably connected to a rotating rod (5), the outer surface of the rotating rod (5) is fixedly connected to a coarse grinding roller (6) for grinding and roughening the surface of the rolled copper foil, the right side of the inner wall of the support frame (1) is fixedly installed with a drying assembly (12) for drying the roughened rolled copper foil, the other side of the inner wall of the support frame (1) is rotatably connected to two connecting rods (13) at equal distances, the outer surface of the connecting rod (13) is fixedly connected to a water-absorbing sponge (18), the top side of the drying assembly (12) is fixedly connected to a water baffle (19), the inner wall of the support frame (1) is fixedly connected to two connecting water pipes (20) at equal distances, and one side of the connecting water pipe (20) is fixedly connected to a plurality of flushing nozzles (21) at equal distances.

2. The device for roughening the surface of rolled copper foil according to claim 1, wherein: The electrolyte coarsening assembly (2) comprises an electrolytic cell (201) fixedly connected to the middle of the inner wall of the support frame (1); a cover (202) is fixedly connected to the top of the electrolytic cell (201); two feed ports (203) are equidistantly provided at the top of the cover (202); and two second guide rods (204) are fixedly connected to one side of the inner cavity of the electrolytic cell (201) at an equidistant distance.

3. The device for roughening the surface of rolled copper foil according to claim 1, wherein: The drying assembly (12) comprises a drying box (121) fixedly connected to the right side of the inner wall of the support frame (1); one end of the drying box (121) is fixedly connected to a first mounting plate (122); a vent (123) is provided on one side of the inner cavity of the drying box (121); a hot air blower (124) is fixedly installed on the top of the first mounting plate (122); the output end of the hot air blower (124) is connected to an air outlet pipe (125); two fixed plates (126) are fixedly connected to the bottom end of the drying box (121) at equal distances; a third guide rod (127) is fixedly connected between the two fixed plates (126).

4. The device for roughening the surface of rolled copper foil according to claim 3, wherein: The position of the vent (123) corresponds to the position of the air outlet pipe (125) and they are connected to each other.

5. The device for roughening the surface of rolled copper foil according to claim 1, wherein: A second mounting plate (7) is fixedly mounted on one end of the support frame (1), a first motor (8) is mounted on the top end of the second mounting plate (7), and an output end of the first motor (8) is fixedly connected to one end of the rotating rod (5).

6. The device for roughening the surface of rolled copper foil according to claim 1, characterized in that: A second fixing frame (9) is fixedly connected to one side of the inner wall of the support frame (1), two first locking rings (10) are fixedly connected to the top of the second fixing frame (9) at equal distances, and the inner cavities of the two first locking rings (10) are provided with discharge rollers (11).

7. The device for roughening the surface of rolled copper foil according to claim 1, wherein: A third fixing frame (14) is fixedly connected to one side of the right end of the support frame (1), two second locking rings (15) are fixedly connected to the top of the third fixing frame (14) at equal distances, and the inner cavities of the two second locking rings (15) are provided with a receiving roller (16), and a second motor (17) is fixedly installed on one side of the top of the third fixing frame (14), and the output end of the second motor (17) is fixedly connected to one end of the receiving roller (16).