Horizontal type ultra-precision micro-coating roller

Abstract

The utility model relates to electroplating drum technical field, especially a kind of horizontal type ultra-precision micro-coating drum, including drum body, mounting bracket and electric head.Sealing plate and several porous screen are set on drum body, and porous screen and sealing plate are annular array distribution around the axis of drum body, and one end cover is respectively set at both ends of drum body;Drum body is rotatably connected with mounting bracket, support shaft is set on mounting bracket, support shaft penetrates drum body, two annular plates are symmetrically set on support shaft, electrically conductive plate A and electrically conductive plate B are set on annular plate with interval, each electrically conductive plate A and electrically conductive plate B are connected with corresponding side porous screen;Electric head is set on mounting bracket and is electrically connected with each electrically conductive plate A and electrically conductive plate B through annular plate.The utility model can effectively guarantee the power-on stability of workpiece, improve the efficiency of workpiece electroplating, and workpiece is separated by electrically conductive plate A and electrically conductive plate B, improves its electroplating uniformity.

Description

Technical Field

[0001] This utility model relates to the field of electroplating roller technology, and in particular to a horizontal ultra-precision micro-plating roller. Background Technology

[0002] The horizontal drum plating system employs a hexagonal prism-shaped, horizontally positioned design. The drum wall is equipped with densely packed micropores (typically less than 1 mm in diameter) to support electrolyte circulation and waste gas discharge. During drum plating, a continuous current must be supplied to the internal workpiece; this is a fundamental condition for achieving the reduction and deposition of metal ions on the workpiece surface.

[0003] Chinese Patent CN218910570U discloses a roller with a conductive mechanism. This device uses a movable disc and a perforated conductive rod and conductive head to achieve uniform contact and current conduction with the workpiece. It solves the problems of limited contact between the product and the roller, limited current uniformity, large tolerance of the coating uniformity on the product surface, high processing difficulty for products with small coating thickness tolerance, and thicker coatings for some products to ensure the pass rate, which not only wastes processing resources but also prolongs electroplating time, fails to achieve good uniform conductivity, and reduces the production capacity and processing efficiency of the roller equipment.

[0004] However, the device still has shortcomings: in actual production, the current transmission is affected by the rolling motion of the workpiece, and is "periodic on and off" rather than absolutely continuous. The time required for the workpiece to complete electroplating is relatively long. In addition, the device lacks a structure to assist in turning the workpiece, which results in low electroplating efficiency. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a horizontal ultra-precision micro coating roller.

[0006] The technical solution of this utility model is: a horizontal ultra-precision micro coating roller, including a roller body, a sealing plate and several perforated mesh plates are provided on the roller body, the perforated mesh plates and the sealing plate are arranged in a ring array around the axis of the roller body, and an end cap is provided at each end of the roller body.

[0007] The mounting frame has a roller body that is rotatably connected to the mounting frame via an end cap. A support shaft is installed on the mounting frame, which passes through the roller body and is rotatably connected to it on the same axis. Two annular plates that rotate on the same axis are symmetrically fitted on the support shaft. Conductive plates A and B are spaced apart on the arc surface of the annular plates. Each conductive plate A and conductive plate B is connected to a perforated mesh plate on the corresponding side to form a guide slope A and a guide slope B on two adjacent perforated mesh plates respectively.

[0008] And conductive heads, which are mounted on the mounting frame and electrically connected to each conductive plate A and conductive plate B via an annular plate.

[0009] Preferably, the ends of the two conductive plates A on the same perforated mesh plate that are far apart from each other are respectively abutted against the end caps on the corresponding sides, and an intermediate channel for the workpiece to pass through is provided between the two conductive plates A on the same perforated mesh plate.

[0010] Preferably, the two conductive plates B on the same perforated mesh are connected at their closest ends, and the two conductive plates B on the same perforated mesh have side channels between their far ends and the end caps on their corresponding sides, allowing the workpiece to pass through.

[0011] Preferably, two conductive cable trays are symmetrically arranged on the mounting frame, the conductive heads on the same side are electrically connected to the conductive cable trays, and the support shaft is fixedly connected to the mounting frame through the conductive cable trays.

[0012] Preferably, an electric slip ring is provided on the inner wall of the annular plate, a cavity is provided in the support shaft, and two annular grooves are symmetrically provided on the support shaft. The two annular plates are respectively coaxially rotated in the annular grooves on the corresponding sides, and an electric wire that is always electrically connected to the electric slip ring is provided in the cavity. One end of the electric wire extending out of the support shaft is electrically connected to the conductive cable tray.

[0013] Preferably, a sealing ring is provided in the annular groove and rotates coaxially with it, with the outer arc surface of the sealing ring fitting against the inner wall of the annular plate.

[0014] Preferably, a rotating shaft is provided on the mounting bracket, and a gear A coaxial with it is provided on the rotating shaft. A mounting shaft is provided on the end cover, and the mounting shaft is rotatably connected to the mounting bracket. A gear B coaxial with it is provided on the mounting shaft, and gear A and gear B mesh.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] By setting conductive plates A and B on two adjacent perforated mesh plates respectively, guide slopes A and B are formed on the two adjacent perforated mesh plates respectively. The workpiece is guided by the guide slopes to complete the process of concentration, dispersion and reconcentration. This structure improves the dispersion uniformity of the workpiece in the drum body 1, ensures that the workpiece can be stably energized, thereby promoting the electroplating efficiency of the workpiece and ensuring the uniformity of the plating layer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the components on the support shaft;

[0019] Figure 3This is a schematic diagram of the connection structure between the support shaft, the slip ring, and the wires.

[0020] Reference numerals in the attached drawings: 1. Roller body; 2. Perforated mesh plate; 3. Sealing plate; 4. End cap; 5. Mounting bracket; 6. Support shaft; 7. Annular plate; 71. Electric slip ring; 8. Conductive plate A; 9. Conductive plate B; 10. Wire; 11. Sealing ring; 12. Conductive head; 13. Conductive bridge; 14. Rotating shaft; 15. Gear A; 16. Gear B. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-3 As shown, this utility model proposes a horizontal ultra-precision micro-coating roller, including a roller body 1, a mounting frame 5, and a conductive head 12. The roller body 1 is provided with a sealing plate 3 and several perforated mesh plates 2. The perforated mesh plates 2 and the sealing plate 3 are arranged in a circular array around the axis of the roller body 1, and an end cap 4 is provided at each end of the roller body 1. The roller body 1 is rotatably connected to the mounting frame 5 through the end caps 4. A support shaft 6 is provided on the mounting frame 5, passing through the roller body 1 and rotatably connected to it coaxially. Two annular plates 7 are symmetrically fitted on the support shaft 6 and rotatably connected to it coaxially. Conductive plates A8 and B9 are spaced apart on the arc surface of the annular plates 7. Each conductive plate A8 and conductive plate B9 is connected to the perforated mesh plate 2 on the corresponding side, so as to form a guide slope A and a guide slope B on two adjacent perforated mesh plates 2, respectively. Two conductive plates A8 on the same perforated mesh plate 2 have their ends, which are far apart, abutting against the end caps 4 on their respective sides. A central channel for workpiece passage is provided between the two conductive plates A8 on the same perforated mesh plate 2. Two conductive plates B9 on the same perforated mesh plate 2 have their ends, which are close together, and a side channel for workpiece passage is provided between the ends, which are far apart, and the end caps 4 on their respective sides. A conductive head 12 is mounted on the mounting frame 5 and electrically connected to each conductive plate A8 and conductive plate B9 via an annular plate 7. Two conductive bridges 13 are symmetrically arranged on the mounting frame 5. The conductive head 12 on the same side is electrically connected to the conductive bridge 13, and the support shaft 6 is fixedly connected to the mounting frame 5 via the conductive bridge 13. An electric slip ring 71 is provided on the inner wall of the annular plate 7. A cavity is provided inside the support shaft 6, and two annular grooves are symmetrically arranged on the support shaft 6. The two annular plates 7 are coaxially rotatably arranged in the annular grooves on the corresponding sides. A wire 10, which is always electrically connected to the electric slip ring 71, is provided in the cavity. One end of the wire 10 extending out of the support shaft 6 is electrically connected to the conductive bridge 13 on the corresponding side. A rotating shaft 14 is provided on the mounting frame 5, and a gear A15 coaxial with it is provided on the rotating shaft 14. A mounting shaft is provided on the end cover 4, and the mounting shaft is rotatably connected to the mounting frame 5. A gear B16 coaxial with it is provided on the mounting shaft, and gear A15 meshes with gear B16.

[0023] It should be noted that the conductive head 12 on one side is connected in series with the conductive head 12 on the other side through the conductive bridge 13, the wire 10, the slip ring 71, the conductive plate A8 and the conductive plate B9, and is connected to the external circuit. The roller body 1 is a roller with a cross-section of regular hexagon.

[0024] In this embodiment, the rotating shaft 14 of the device is connected to an external driving device, and the conductive head 12 is energized. At this time, each conductive plate A8 and conductive plate B9 is energized. The rotating shaft 14 rotates and drives the drum body 1 to rotate counterclockwise through gears A15 and B16. When the drum body 1 rotates, the workpiece on the bottom perforated mesh plate 2 gradually rises with the rotation of the drum body 1, and slides down along the surface of the perforated mesh plate 2 when it reaches a certain height. When the workpiece slides down, it is guided by the conductive plate A8 and falls down from the middle channel between the two conductive plates A8 and lands in the middle position on the next perforated mesh plate 2. When the next set of perforated mesh plates 2 is rotated and lifted, the workpiece slides down to both ends of the inner cavity of the drum body 1 under the guidance of the two conductive plates B9 on the perforated mesh plate 2. This cycle repeats, so that the workpiece can be kept energized when it is in contact with the conductive plates A8 and B9, thereby improving the electroplating efficiency of the workpiece.

[0025] Example 2

[0026] like Figure 3 As shown, the present invention proposes a horizontal ultra-precision micro coating roller, which, compared with Embodiment 1, has a sealing ring 11 that rotates coaxially with it in the annular groove, and the outer arc surface of the sealing ring 11 is in contact with the inner wall of the annular plate 7.

[0027] In this embodiment, the sealing ring 11 can improve the sealing between the annular plate 7 and the support shaft 6, preventing water ingress.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A horizontal ultra-precision micro-coating roller, characterized in that, include: The roller body (1) is provided with a sealing plate (3) and several perforated mesh plates (2). The perforated mesh plates (2) and the sealing plate (3) are arranged in a ring array around the axis of the roller body (1), and an end cap (4) is provided at each end of the roller body (1). Mounting frame (5), roller body (1) is rotatably connected to mounting frame (5) through end cap (4), mounting frame (5) is provided with support shaft (6), support shaft (6) passes through roller body (1) and is rotatably connected to it on the same axis, support shaft (6) is symmetrically fitted with two annular plates (7) that rotate on the same axis, conductive plates A (8) and conductive plates B (9) are spaced apart on the arc surface of the annular plates (7), each conductive plate A (8) and conductive plate B (9) is connected to the perforated mesh plate (2) on the corresponding side, so as to form guide slope A and guide slope B on the two adjacent perforated mesh plates (2); And a conductive head (12), which is mounted on the mounting frame (5) and electrically connected to each conductive plate A (8) and conductive plate B (9) via an annular plate (7).

2. The horizontal ultra-precision micro-coating roller according to claim 1, characterized in that, Two conductive plates A (8) on the same perforated mesh plate (2) have their ends far apart from each other and abut against the end caps (4) on the corresponding sides, and an intermediate channel for workpieces to pass through is provided between the two conductive plates A (8) on the same perforated mesh plate (2).

3. A horizontal ultra-precision micro-coating roller according to claim 1, characterized in that, Two conductive plates B (9) on the same perforated mesh plate (2) are connected at their closest ends, and the two conductive plates B (9) on the same perforated mesh plate (2) are separated at their far ends from each other and have side channels for workpieces to pass through between the corresponding end caps (4).

4. A horizontal ultra-precision micro-coating roller according to claim 1, characterized in that, Two conductive bridges (13) are symmetrically arranged on the mounting bracket (5). The conductive head (12) on the same side is electrically connected to the conductive bridge (13), and the support shaft (6) is fixedly connected to the mounting bracket (5) through the conductive bridge (13).

5. A horizontal ultra-precision micro-coating roller according to claim 4, characterized in that, An electric slip ring (71) is provided on the inner wall of the annular plate (7), a cavity is provided in the support shaft (6), and two annular grooves are symmetrically provided on the support shaft (6). The two annular plates (7) are coaxially rotated in the annular grooves on the corresponding sides, and a wire (10) that is always electrically connected to the electric slip ring (71) is provided in the cavity. One end of the wire (10) extending out of the support shaft (6) is electrically connected to the conductive bridge (13).

6. A horizontal ultra-precision micro-coating roller according to claim 5, characterized in that, A sealing ring (11) is provided in the annular groove and rotates coaxially with it. The outer arc surface of the sealing ring (11) is in contact with the inner wall of the annular plate (7).

7. A horizontal ultra-precision micro-coating roller according to claim 1, characterized in that, A rotating shaft (14) is provided on the mounting bracket (5), and a gear A (15) coaxial with it is provided on the rotating shaft (14). An installation shaft is provided on the end cover (4), and the installation shaft is rotatably connected to the mounting bracket (5). A gear B (16) coaxial with it is provided on the installation shaft, and gear A (15) meshes with gear B (16).

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