Pickling device for processing of ultra-thin carrier copper foil

Abstract

The utility model relates to copper foil pickling technical field, concretely relates to a kind of pickling device for ultra-thin carrier copper foil processing, including pickling tank, the inside of pickling tank is provided with pickling liquor for carrying out pickling to copper foil, the inner wall of pickling tank is provided with I -block, the top of I -block is provided with upper extrusion roller, the top of pickling tank is provided with mounting bracket, the inside of mounting bracket is provided with lower extrusion roller, the lateral wall of pickling tank is provided with symmetrical mounting block, copper foil storage roller is movably arranged between two mounting blocks, by the end of copper foil is placed between upper extrusion roller and lower extrusion roller in turn, the mutual extrusion between upper extrusion roller and lower extrusion roller can make that copper foil is always in flat state when pickling, effectively prevent copper foil from being curled together when pickling, improve the uniformity of copper foil when pickling.

Description

Technical Field

[0001] This utility model relates to the field of copper foil pickling technology, specifically to a pickling device for processing ultra-thin carrier copper foil. Background Technology

[0002] Copper foil is a cathodic electrolytic material, a thin, continuous metal foil deposited on the substrate layer of a circuit board, serving as the conductor in the PCB. It easily adheres to the insulating layer, receives the printed protective layer, and forms the circuit pattern after etching. During the manufacturing process, copper foil requires acid pickling to remove the oxide layer on its surface.

[0003] Chinese Patent Publication No. CN208430231 U discloses an acid pickling device for manufacturing electrolytic copper foil, comprising a main body with a fixed sleeve. An acid pickling chamber is located inside the fixed sleeve and connected to the fixed sleeve via a large bearing. A protective cover is provided at one end of the acid pickling chamber, and a drive shaft is located in the middle of that end within the protective cover. The drive shaft is connected to a drive motor via a gear set, and the drive motor is located in the middle of the end of the protective cover furthest from the acid pickling chamber. This invention allows the acid pickling chamber to rotate via the drive motor and gear set, ensuring comprehensive contact between the copper ingots and the acid pickling solution, resulting in thorough acid pickling and improved pickling efficiency. A branch pipe is provided at one end of the rotating connecting pipe, allowing for rapid filling and drainage of acid within the pickling chamber, further enhancing the device's working efficiency.

[0004] When the device pickles copper foil, it places the copper foil into the pickling chamber for pickling. However, because the copper foil is thin and has a certain degree of flexibility and ductility, it tends to curl up when pickling in the pickling chamber. This makes it difficult for the pickling solution to penetrate evenly into each layer of the copper foil, resulting in uneven pickling effect. Utility Model Content

[0005] To address the aforementioned issues, an acid pickling apparatus for processing ultra-thin carrier copper foil is provided. By placing one end of the copper foil between an upper extrusion roller and a lower extrusion roller in sequence, the mutual extrusion between the upper and lower extrusion rollers ensures that the copper foil remains flat during acid pickling, effectively preventing the copper foil from curling up during pickling and improving the uniformity of the copper foil during pickling.

[0006] To address the problems of existing technologies, this utility model provides an acid pickling device for processing ultra-thin carrier copper foil, including an acid pickling tank. The acid pickling tank is filled with an acid pickling solution for pickling copper foil. I-beams are arranged on the inner wall of the acid pickling tank. An upper extrusion roller is arranged on the top of the I-beams. A mounting frame is arranged on the top of the acid pickling tank. A lower extrusion roller is arranged inside the mounting frame. Symmetrical mounting blocks are arranged on the side wall of the acid pickling tank. A copper foil receiving roller is movably arranged between two mounting blocks.

[0007] Preferably, each of the two mounting blocks is provided with a first spring telescopic rod on an opposite side, and the telescopic end of the first spring telescopic rod is provided with a limiting plate for clamping the copper foil collecting roller.

[0008] Preferably, the limiting disk is internally equipped with a roller to facilitate the rolling of the copper foil receiving roller.

[0009] Preferably, the inner wall of the pickling tank is provided with a support block, and the top of the support block is provided with a symmetrical second spring telescopic rod, and the telescopic end of the second spring telescopic rod is provided with a filter frame for filtering impurities.

[0010] Preferably, a motor is installed on the outer wall of the pickling tank, and a rotating rod is installed on the output shaft of the motor through a coupling. One end of the rotating rod is rotatably connected to the inner wall of the pickling tank, and multiple abutment blocks for abutting the filter frame are provided on the outside of the rotating rod.

[0011] Preferably, the bottom of the pickling tank is connected to a drain pipe for discharging pickling solution, and a closing valve for controlling the closing of the drain pipe is provided on the outside of the drain pipe.

[0012] The advantages of this utility model compared to the prior art are:

[0013] 1. By placing one end of the copper foil between the upper and lower extrusion rollers in sequence, the mutual extrusion between the upper and lower extrusion rollers can keep the copper foil in a flat state during pickling, effectively preventing the copper foil from curling up during pickling and improving the uniformity of the copper foil during pickling.

[0014] 2. By using two first spring telescopic rods in conjunction with the limiting plate, copper foil collection rollers of different sizes can be installed, which facilitates the pickling of copper foil of different sizes. At the same time, the rollers inside the limiting plate can facilitate the rolling of the copper foil collection rollers.

[0015] 3. By opening the closing valve, the pickling solution inside the pickling tank will be discharged through the drain pipe. At the same time as the discharge, the filter frame can be used to filter the impurities in the pickling solution. The discharged pickling solution can be recycled after subsequent purification treatment, which reduces the production cost of copper foil. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an acid pickling device used for processing ultra-thin carrier copper foil.

[0017] Figure 2 This is a partial structural diagram of an acid pickling device used for processing ultra-thin carrier copper foil.

[0018] Figure 3 Figure 2 A magnified structural diagram of point A in the middle.

[0019] Figure 4 This is a schematic diagram of the internal structure of the pickling tank in a pickling device used for processing ultra-thin carrier copper foil.

[0020] Figure 5 This is a schematic diagram of the filter frame in an acid pickling device used for processing ultra-thin carrier copper foil.

[0021] Figure 6 This is a schematic diagram of the rotating rod and the contact block in an acid pickling device used for processing ultra-thin carrier copper foil.

[0022] The following are the labels in the diagram: 1. Pickling tank; 2. Lower extrusion roller; 3. Mounting frame; 4. Upper extrusion roller; 5. Mounting block; 6. First spring telescopic rod; 7. Copper foil collecting roller; 8. Motor; 9. Roller; 10. I-beam block; 11. Closing valve; 12. Filter frame; 13. Support block; 14. Drain pipe; 15. Second spring telescopic rod; 16. Rotating rod; 17. Abutment block; 18. Limiting plate. Detailed Implementation

[0023] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 6 As shown, this utility model provides:

[0025] A pickling apparatus for processing ultra-thin carrier copper foil includes a pickling tank 1, an pickling solution for pickling copper foil is provided inside the pickling tank 1, an I-beam block 10 is provided on the inner wall of the pickling tank 1, an upper extrusion roller 4 is provided on the top of the I-beam block 10, a mounting frame 3 is provided on the top of the pickling tank 1, a lower extrusion roller 2 is provided inside the mounting frame 3, symmetrical mounting blocks 5 are provided on the side wall of the pickling tank 1, and a copper foil receiving roller 7 is movably arranged between the two mounting blocks 5.

[0026] The mutual squeezing action between the upper squeezing roller 4 and the lower squeezing roller 2 ensures that the copper foil remains flat throughout the pickling process. This effectively prevents the copper foil from curling and clumping together during pickling. This significantly improves the uniformity of the copper foil during pickling, ensuring consistent processing results and stable quality.

[0027] like Figure 3 As shown, each of the two mounting blocks 5 is provided with a first spring telescopic rod 6 on one side of the opposite side. The telescopic end of the first spring telescopic rod 6 is provided with a limiting plate 18 for clamping the copper foil collecting roller 7.

[0028] By utilizing the synergistic effect of two first spring telescopic rods 6 and the limiting plate 18, the installation process of copper foil receiving rollers 7 of various sizes can be easily achieved. This greatly improves operational flexibility, enabling workers to conveniently perform pickling treatment on copper foil of different specifications, thereby effectively improving work efficiency and operational convenience.

[0029] like Figure 3 As shown, the inner rotating part of the limiting disk 18 is provided with a roller 9 to facilitate the rolling of the copper foil collecting roller 7.

[0030] The rollers 9 inside the limiting plate 18 make the copper foil collecting roller 7 rotate more smoothly, preventing the copper foil collecting roller 7 from jamming during rotation, thereby reducing the wear of the copper foil collecting roller 7 during operation.

[0031] like Figure 4 As shown, the inner wall of the pickling tank 1 is provided with a support block 13, and the top of the support block 13 is provided with a symmetrical second spring telescopic rod 15. The telescopic end of the second spring telescopic rod 15 is provided with a filter frame 12 for filtering impurities.

[0032] By using filter frame 12, impurities in the pickling solution can be effectively and precisely filtered. After being discharged, the filtered pickling solution enters a subsequent purification process. In this process, the pickling solution undergoes further purification and treatment to ensure its quality meets reuse standards. Once processed, this purified pickling solution can be returned to the production line for recycling. This recycling method significantly reduces costs in the copper foil production process, while also reducing environmental impact and the amount of chemicals requiring treatment and disposal.

[0033] like Figure 6 As shown, a motor 8 is installed on the outer wall of the pickling tank 1. The output shaft of the motor 8 is connected to a rotating rod 16 via a coupling. One end of the rotating rod 16 is rotatably connected to the inner wall of the pickling tank 1. Multiple abutting blocks 17 for abutting the filter frame 12 are installed on the outside of the rotating rod 16.

[0034] The motor 8 drives the rotating rod 16 to rotate, and the abutment block 17 outside the rotating rod 16 also rotates, thereby squeezing the filter frame 12. This causes the filter frame 12 to be in a state of vibration under the action of the second spring telescopic rod 15, making the pickling solution flow more smoothly when discharged.

[0035] like Figure 6 As shown, the bottom of the pickling tank 1 is connected to a drain pipe 14 for discharging pickling solution, and a closing valve 11 is provided on the outside of the drain pipe 14 for controlling the closing of the drain pipe 14.

[0036] By controlling the opening and closing of the drain pipe 14 through the closing valve 11, the pickling solution can be discharged smoothly.

[0037] Working principle: When copper foil needs to be pickled, the copper foil receiving roller 7 is placed between two limiting plates 18. The two first spring telescopic rods 6, working in conjunction with the limiting plates 18, allow for the installation of copper foil receiving rollers 7 of different sizes, facilitating the pickling of copper foil of varying sizes. Simultaneously, the rollers 9 inside the limiting plates 18 facilitate the rolling of the copper foil receiving roller 7. Then, one end of the copper foil is placed sequentially between the upper extrusion roller 4 and the lower extrusion roller 2. The mutual extrusion between the upper extrusion roller 4 and the lower extrusion roller 2 ensures that the copper foil remains flat during pickling, effectively preventing it from curling up and improving the uniformity of the pickling process. After the copper foil pickling is completed, the closing valve 11 is opened, and the pickling solution inside the pickling tank 1 will be discharged through the drain pipe 14. At the same time as the discharge, the filter frame 12 can filter the impurities in the pickling solution. The discharged pickling solution can be recycled after subsequent purification treatment, which reduces the production cost of copper foil. At the same time, in order to prevent the filter holes inside the filter frame 12 from being blocked by impurities, the motor 8 drives the rotating rod 16 to rotate, and the abutment block 17 outside the rotating rod 16 will also rotate, thereby squeezing the filter frame 12. Under the action of the second spring telescopic rod 15, the filter frame 12 is always in a state of vibration, making the pickling solution discharge more smoothly.

[0038] The above embodiments merely illustrate one or several implementation methods of the pickling apparatus for processing ultra-thin carrier copper foil according to this utility model. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

[0039] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A pickling apparatus for processing ultra-thin carrier copper foil, characterized in that, The system includes a pickling tank (1), which contains an acid pickling solution for pickling copper foil. The inner wall of the pickling tank (1) is provided with an I-beam (10), the top of the I-beam (10) is provided with an upper extrusion roller (4), the top of the pickling tank (1) is provided with a mounting frame (3), the inside of the mounting frame (3) is provided with a lower extrusion roller (2), the side wall of the pickling tank (1) is provided with symmetrical mounting blocks (5), and a copper foil collecting roller (7) is movably arranged between the two mounting blocks (5).

2. The pickling apparatus for processing ultra-thin carrier copper foil according to claim 1, characterized in that, Each of the two mounting blocks (5) is provided with a first spring telescopic rod (6) on one side opposite to the other. The telescopic end of the first spring telescopic rod (6) is provided with a limiting plate (18) for clamping the copper foil collecting roller (7).

3. The pickling apparatus for processing ultra-thin carrier copper foil according to claim 2, characterized in that, The limiting disk (18) is internally equipped with a roller (9) to facilitate the rolling of the copper foil collecting roller (7).

4. The pickling apparatus for processing ultra-thin carrier copper foil according to claim 1, characterized in that, The pickling tank (1) has a support block (13) on its inner wall. The top of the support block (13) is provided with a symmetrical second spring telescopic rod (15). The telescopic end of the second spring telescopic rod (15) is provided with a filter frame (12) for filtering impurities.

5. The pickling apparatus for processing ultra-thin carrier copper foil according to claim 1, characterized in that, The outer wall of the pickling tank (1) is provided with a motor (8), and the output shaft of the motor (8) is provided with a rotating rod (16) through a coupling. One end of the rotating rod (16) is rotatably connected to the inner wall of the pickling tank (1), and a plurality of abutting blocks (17) for abutting the filter frame (12) are provided on the outside of the rotating rod (16).

6. The pickling apparatus for processing ultra-thin carrier copper foil according to claim 1, characterized in that, The bottom of the pickling tank (1) is connected to a drain pipe (14) for discharging pickling liquid, and a closing valve (11) for controlling the closing of the drain pipe (14) is provided on the outside of the drain pipe (14).

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