Copper deposition and glue residue removal production line

By employing the reciprocating incline motion of the hanging basket and the oscillating vibration device in the electroplating and surface treatment production line, the problem of insufficient chemical penetration was solved, and the effective removal of glue residue and contaminants was achieved, ensuring the uniformity and thickness of the copper plating layer.

CN223515110UActive Publication Date: 2025-11-04JIANGXI CHENGGONG AUTOMATION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202422972951.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-11-04
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

In existing electroplating and surface treatment production lines, the horizontal movement method does not allow for sufficient chemical penetration when processing micro-hole circuit boards, resulting in incomplete removal of adhesive residue and contaminants, which affects the thickness and uniformity of the copper plating layer.

Method used

The hanging basket carrying the circuit board reciprocates uphill within the immersion tank assembly. Combined with a swing device and a vibration device, this enhances the penetration of the solution into the pores, ensuring the effective removal of adhesive residue and contaminants.

Benefits of technology

It improves the potting effect of the chemical on the circuit board holes, ensures the effective removal of adhesive residue and contaminants from the hole walls, and guarantees the thickness and uniformity of the copper plating layer.

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Abstract

The utility model discloses a copper deposition and glue residue removal production line, which relates to the field of circuit board production and comprises a fixed seat, an immersion liquid tank group and a travelling crane device are arranged on the fixed seat, the travelling crane device is arranged above the immersion liquid tank group, an electroplating flying bar is arranged at the bottom of the travelling crane device, a hanging basket is detachably connected onto the electroplating flying bar, and the hanging basket is matched with the immersion liquid tank group in an inserting manner. An air draft device is arranged on the fixed seat, a swinging device is arranged on the periphery of the immersion tank group, the swinging device is detachably connected with the hanging basket, and the swinging device can drive the hanging basket to perform reciprocating climbing motion in the immersion tank group; according to the electroless copper plating glue residue removal production line, the hanging basket loaded with the circuit board can perform reciprocating climbing motion in the immersion liquid tank group, so that the hole filling effect of liquid medicine on the circuit board is improved, glue residues and pollutants on the hole wall are ensured to be effectively removed, and the thickness and uniformity of an electroless copper plating layer are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing, specifically a copper plating and descaling production line. Background Technology

[0002] In the electroplating and surface treatment industry, a conductive copper layer is typically formed inside holes by copper plating, allowing the circuitry between layers to conduct electricity. However, the hole walls must undergo a desmearing process before copper plating. Modern electroplating and surface treatment production lines usually integrate the copper plating and desmearing processes on the same line and introduce oscillating devices to improve production efficiency.

[0003] Existing oscillating devices generally use horizontal movement to move the workpiece during processing. However, this horizontal movement method is not ideal for the filling effect of chemicals on circuit boards. Especially when processing circuit boards with micro-holes, horizontal movement often fails to allow the chemicals to fully penetrate into the holes, resulting in the inability to effectively remove adhesive residue and contaminants on the hole walls. This, in turn, affects the subsequent copper plating effect. Furthermore, horizontal movement may also cause uneven distribution of chemicals within the holes, affecting the thickness and uniformity of the copper plating layer. Utility Model Content

[0004] The purpose of this invention is to provide a copper plating descaling production line. This production line enables the baskets carrying circuit boards to make reciprocating climbing motions within the immersion tank, thereby improving the potting effect of the chemicals on the circuit boards, ensuring that the descaling residue and contaminants on the hole walls are effectively removed, and guaranteeing the thickness and uniformity of the copper plating layer.

[0005] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a copper plating descaling production line includes a fixed base, on which an immersion tank group and a traveling device are provided. The traveling device is located above the immersion tank group, and an electroplating fly bar is provided at the bottom of the traveling device. A hanging basket is detachably connected to the electroplating fly bar. The hanging basket is inserted and engaged with the immersion tank group. An exhaust device is provided on the fixed base, and a swing device is provided around the immersion tank group. The swing device is detachably connected to the hanging basket, and the swing device can drive the hanging basket to perform reciprocating climbing motion within the immersion tank group.

[0006] In some embodiments, the rocking device includes a fixed frame with a rocking frame on it. The fixed frame and the rocking frame surround the immersion tank assembly. Multiple rocking rods are hinged between the fixed frame and the rocking frame. A driving member is hinged to one side of the rocking frame. Multiple supporting components are provided on the rocking frame. The supporting components are detachably connected to the hanging basket and are located above the immersion tank assembly.

[0007] In some embodiments, the immersion tank group includes a plurality of immersion tanks.

[0008] In some embodiments, the support assembly includes four support members, which are symmetrically arranged on both sides of the immersion tank and are inserted into the hanging basket.

[0009] In some embodiments, a vibration device is also included, which is disposed on the swing frame. The vibration device is symmetrically arranged on both sides of the immersion tank, and two support members are provided on the vibration device.

[0010] In some embodiments, the mounting base includes a mounting frame with a transparent cover.

[0011] In some embodiments, the ventilation device includes a ventilation motor, the ventilation motor is connected to two ventilation pipes, the ventilation pipes are connected to ventilation hoods, and the two ventilation hoods are symmetrically arranged on both sides of the traveling device.

[0012] In some embodiments, an operating table is provided on one side of the fixed base.

[0013] In summary, this utility model has the following beneficial effects:

[0014] This copper plating descaling production line uses a swing device to make the circuit board in the basket reciprocate uphill in the immersion tank, allowing the chemical solution to penetrate the holes more fully. This improves the filling effect of the chemical solution on the circuit board, ensures that the glue residue and contaminants on the hole walls are effectively removed, and at the same time ensures the thickness and uniformity of the copper plating layer. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the swing device of this utility model.

[0017] In the diagram: 1. Fixed base; 2. Immersion tank assembly; 3. Traveling device; 4. Electroplating flybar; 5. Hanging basket; 6. Exhaust system; 61. Exhaust pipe; 62. Exhaust hood; 7. Swinging device; 71. Fixed frame; 72. Swinging frame; 73. Swinging rod; 74. Drive component; 75. Support assembly; 8. Vibration device; 9. Operating table. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] refer to Figure 1-2 A copper plating and descaling production line includes a fixed base 1, an immersion tank assembly 2, a traveling crane 3, an electroplating fly bar 4, a hanging basket 5, an exhaust system 6, a swinging device 7, a vibration device 8, and an operating table 9. The fixed base 1 supports the entire production line and may include a fixed frame and a transparent cover. The transparent cover allows the fixed base 1 to be in a relatively sealed state, reducing the impact on the outside world during processing and facilitating observation of the working status inside the production line. The fixed base 1 is equipped with the immersion tank assembly 2 and the traveling crane 3. The immersion tank assembly 2 includes multiple immersion tanks for holding different treatment solutions, such as copper plating solution, descaling solution, pure water, and tap water, which can realize different treatments of circuit boards.

[0020] The traveling device 3 is located above the immersion tank group 2. The bottom of the traveling device 3 is equipped with an electroplating flybar 4. A hanging basket 5 is detachably connected to the electroplating flybar 4. The hanging basket 5 can carry the circuit board to be processed. The electroplating flybar 4, the hanging basket 5, and the detachable connection structure between them are all existing technologies and will not be described in detail here. The traveling device 3 can drive the electroplating flybar 4 and the hanging basket 5 to move above the immersion tank group 2, and can also drive the electroplating flybar 4 and the hanging basket 5 to rise and fall, so that the hanging basket 5 can be inserted and cooperated with the immersion tank group 2. By placing the hanging basket 5 with the circuit board in different immersion tanks, different processing of the circuit board can be achieved. The traveling device 3 may include a moving motor, a moving slide rail, a lifting slide rail, etc., which are existing technologies and will not be described in detail here.

[0021] The fixed base 1 is equipped with an exhaust device 6, which includes an exhaust motor. The exhaust motor is connected to two exhaust pipes 61, and the exhaust pipes 61 are connected to exhaust hoods 62. The two exhaust hoods 62 are symmetrically arranged on both sides of the traveling device 3, which can discharge harmful gases inside the production line during the processing and reduce the impact of gases generated during the production process on the processing.

[0022] The immersion tank assembly 2 is equipped with a swing device 7 on its periphery. The swing device 7 is detachably connected to the hanging basket 5. The swing device 7 can drive the hanging basket 5 to make a reciprocating climbing motion inside the immersion tank assembly 2.

[0023] In some embodiments, the swing device 7 includes a fixed frame 71, a swing frame 72, swing rods 73, a drive member 74, and a support assembly 75. The fixed frame 71 is provided with the swing frame 72, and the fixed frame 71 and the swing frame 72 surround the immersion tank assembly 2. The fixed frame 71 and the swing frame 72 are hinged together by multiple swing rods 73. The multiple swing rods 73 can support the swing frame 72 provided by the fixed frame 71, and can also make the swing frame 72 swing obliquely under the action of driving force. The drive member 74 is hinged to one side of the swing frame 72. The drive member 74 can be a drive cylinder, which can ensure that the swing frame 72 can reciprocate along a predetermined trajectory. The swing frame 72 is provided with multiple support assemblies. The support assembly 75 is located above the immersion tank group 2. The support assembly 75 includes four support members, which are symmetrically arranged on both sides of the immersion tank and are inserted into the hanging basket 5 to achieve a detachable connection between the support assembly 75 and the hanging basket 5. This ensures that when the hanging basket 5 is connected to the support assembly 75, the hanging basket 5 is inserted into the immersion tank group 2 to realize the processing of the circuit board. At the same time, it is convenient to separate the hanging basket 5 from the support assembly 75 after the circuit board processing is completed. The support member can be a square block with a groove, and the groove can be an isosceles trapezoid to facilitate the insertion and engagement of the support assembly 75 and the support member. The insertion and connection structure between the hanging basket 5 and the support member is existing technology and will not be described in detail here.

[0024] In some embodiments, a vibration device 8 is also included. The vibration device 8 is disposed on the swing frame 72. The vibration devices 8 are symmetrically arranged on both sides of the immersion tank. The vibration device 8 is provided with two support members. The vibration device 8 can drive the support members to vibrate in the height direction, thereby causing the hanging basket that is inserted and matched with the support members to vibrate in the height direction, and thus causing the circuit board located in the immersion tank group 2 to vibrate, helping the medicine to better penetrate into the hole. The vibration device 8 may include structures such as a vibration motor and a vibration spring, which are existing technologies and will not be described in detail here.

[0025] In some embodiments, an operating table 9 is provided on one side of the fixed base 1, which facilitates the administrator to observe the production process and control the operation of the entire production line according to the actual production situation.

[0026] The specific working principle is as follows:

[0027] During the actual processing, the circuit board to be processed is placed in the hanging basket 5. The hanging basket 5 containing the circuit board is connected to the electroplating flybar 4, thereby connecting the hanging basket 5 to the traveling device 3. The traveling device 3 drives the hanging basket 5 to move horizontally above the immersion tank containing the solution to be processed, and then drives the hanging basket 5 to descend and be sent into the immersion tank.

[0028] When the circuit board to be processed is placed in the immersion tank, the swing device 7 starts to work, driving the swing frame 72 to move the hanging basket 5 in the immersion tank group 2 in a reciprocating climbing motion. At this time, the solution in the immersion tank is subjected to the oblique force of the circuit board, forming a phenomenon of accelerated fluid flow and accumulation at the holes of the circuit board, thereby increasing the contact area and contact time between the workpiece and the processing liquid, thereby improving the processing efficiency and the uniformity of the workpiece surface.

[0029] The exhaust system 6 operates continuously during production line operation, extracting harmful gases from inside the production line through the exhaust pipe 61 and exhaust hood 62 to prevent harmful gases from causing harm to the environment and operators.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A copper plating descaling production line, comprising a fixed base (1), wherein the fixed base (1) is provided with an immersion tank assembly (2) and a traveling device (3), wherein the traveling device (3) is located above the immersion tank assembly (2), characterized in that: The bottom of the traveling device (3) is provided with an electroplating fly bar (4), and a hanging basket (5) is detachably connected to the electroplating fly bar (4). The hanging basket (5) is plugged into the immersion tank group (2). The fixed seat (1) is provided with an exhaust device (6). The immersion tank group (2) is provided with a swing device (7) around its periphery. The swing device (7) is detachably connected to the hanging basket (5). The swing device (7) can drive the hanging basket (5) to make a reciprocating climbing motion in the immersion tank group (2).

2. The copper plating descaling production line according to claim 1, characterized in that: The swing device (7) includes a fixed frame (71), on which a swing frame (72) is provided. The fixed frame (71) and the swing frame (72) surround the immersion tank group (2). Multiple swing rods (73) are hinged between the fixed frame (71) and the swing frame (72). A driving component (74) is hinged to one side of the swing frame (72). Multiple supporting components (75) are provided on the swing frame (72). The supporting components (75) are detachably connected to the hanging basket (5) and are located above the immersion tank group (2).

3. The copper plating descaling production line according to claim 2, characterized in that: The immersion tank group (2) includes multiple immersion tanks.

4. The copper plating descaling production line according to claim 3, characterized in that: The support assembly (75) includes four support members, which are symmetrically arranged on both sides of the immersion tank and are inserted into the hanging basket (5).

5. The copper plating descaling production line according to claim 4, characterized in that: It also includes a vibration device (8), which is mounted on the swing frame (72). The vibration device (8) is symmetrically arranged on both sides of the immersion tank, and two support members are provided on the vibration device (8).

6. The copper plating descaling production line according to claim 1, characterized in that: The fixing base (1) includes a fixing frame, and the fixing frame is provided with a transparent cover.

7. The copper plating descaling production line according to claim 1, characterized in that: The ventilation device (6) includes a ventilation motor, which is connected to two ventilation pipes (61). The ventilation pipes (61) are connected to ventilation hoods (62), and the two ventilation hoods (62) are symmetrically arranged on both sides of the traveling device (3).

8. The copper plating descaling production line according to claim 1, characterized in that: An operating table (9) is provided on one side of the fixed base (1).