A vertical continuous electroless plating line

Abstract

The application provides a vertical continuous chemical plating line, and relates to the technical field of chemical plating equipment. The vertical continuous chemical plating line comprises a chemical plating station, a circulating driving mechanism, a hanger assembly and a lifting driving mechanism. The chemical plating station is provided in plurality and is arranged in sequence. The circulating driving mechanism is arranged above the chemical plating station, and the power output direction of the circulating driving mechanism is arranged along the circulating direction of the production line. The hanger assembly is provided in plurality and is arranged side by side on the circulating driving mechanism. The hanger assembly is suitable for clamping a to-be-plated plate, so that the plate surface of the to-be-plated plate is perpendicular to the advancing direction of the to-be-plated plate. The application can solve the problem of low production capacity caused by the parallel arrangement of the clamp along the circulating direction of the production line in the prior art, greatly reduces the space occupied by the to-be-plated plate in the advancing direction of the vertical continuous chemical plating line, and improves the production capacity.

Description

Technical Field

[0001] This invention relates to the field of chemical plating equipment technology, and specifically to a vertical continuous chemical plating line. Background Technology

[0002] In vertical continuous electroless plating lines, such as the electroless plating process for PCB boards, the PCB boards sequentially pass through various electroless plating tanks on the production line for multiple processing steps. The PCB board clamps are arranged side by side along the production line, ensuring that the surface of the clamped PCB board is parallel to its direction of travel. However, this setup results in the PCB boards occupying a large space in the vertical continuous electroless plating line, leading to a small number of PCB boards processed per cycle and low capacity. Increasing capacity requires expanding the site and the scale of the vertical continuous electroless plating line, significantly increasing costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defect of low production capacity caused by the clamps being arranged in parallel along the circulation direction of the production line in the existing vertical continuous chemical plating line, so that the surface of the plate to be plated is parallel to its travel direction, thereby providing a vertical continuous chemical plating line.

[0004] To address the aforementioned problems, this invention provides a vertical continuous electroless plating line, comprising electroless plating stations, a circulation drive mechanism, fixture assemblies, and a lifting drive mechanism. Multiple electroless plating stations are arranged sequentially. The circulation drive mechanism is positioned above the electroless plating stations, with its power output direction aligned with the circulation direction of the production line. Multiple fixture assemblies are arranged side-by-side on the circulation drive mechanism, adapted to sequentially pass through each electroless plating station under the drive of the circulation drive mechanism. Each fixture assembly is adapted to clamp a plate to be plated, ensuring that the surface of the plate is perpendicular to its own direction of travel. The lifting drive mechanism is connected to the fixture assemblies to drive the fixture assemblies to descend until the plate to be plated enters the electroless plating station and to rise until the plate to be plated leaves the electroless plating station.

[0005] Optionally, the mounting assembly includes a detachably connected lifting assembly and a clamping assembly.

[0006] Optionally, the lifting assembly and the clamping assembly can be detachably connected via a snap-fit ​​structure.

[0007] Optionally, the lifting assembly includes a horizontally positioned boom perpendicular to the direction of travel of the plate to be coated; the clamping assembly is connected to the boom.

[0008] Optionally, the boom is provided with a mounting part, and the clamping assembly is provided with a joint that mates with the mounting part, the joint being detachably mounted on the mounting part.

[0009] Optionally, the clamping assembly includes a clamping frame with at least two clamps arranged side by side and spaced apart, the opening and closing direction of the clamps being set along the travel direction of the plate to be plated.

[0010] Optionally, the clamping frame has an ear plate protruding outward, and the ear plate has a force-bearing surface parallel to the surface of the plate to be plated.

[0011] Optionally, the mounting assembly includes a first guide mechanism, which includes a vertically arranged first guide post and a first roller assembly slidably disposed on the first guide post. The hoisting assembly is connected to the first roller assembly.

[0012] Optionally, the first guide column is provided with limit blocks at both ends to limit the lifting stroke of the hoisting assembly.

[0013] Optionally, a second guide mechanism is included, which includes a vertically arranged second guide column and a second roller assembly slidably disposed on the second guide column, and the lifting platform is connected to the second roller assembly.

[0014] Optionally, the electroless plating station is equipped with an electroless plating tank, and at least one electroless plating tank is equipped with a transfer device for transferring the fixture assembly.

[0015] Optionally, the transfer device includes a swing mechanism and a reciprocating drive mechanism; the swing mechanism includes a limiting surface, a swing arm, and push rods. The limiting surface is longitudinally elongated; the swing arm is positioned above the limiting surface; multiple push rods are spaced apart on the swing arm; the push rods are eccentrically mounted on the swing arm, with the distance from the end of the push rod on the side of its center of gravity to the center of rotation being greater than the vertical distance from the center of rotation to the limiting surface, causing the side of the push rod on its center of gravity to naturally fall to its end and abut against the limiting surface. The push rod and the forward direction of the swing arm form an acute angle, constituting an anti-backward structure; the reciprocating drive mechanism is connected to the swing arm and is suitable for driving the swing arm to perform horizontal reciprocating swing.

[0016] Optionally, the end face of the push rod on the side where the center of gravity is located is set as an inclined surface suitable for contacting the limiting surface.

[0017] Optionally, the reciprocating drive mechanism includes a cam drive mechanism or a drive cylinder.

[0018] Optionally, the cam transmission mechanism includes a cam and a limiting plate; the limiting plate is connected to the rocker arm, and the limiting plate is provided with an annular limiting groove that cooperates with the cam. The limiting groove is elongated, and the cam is slidably disposed in the limiting groove.

[0019] Optionally, two swing mechanisms are provided, arranged side by side on both sides of the chemical plating tank, and the two swing arms are connected by a synchronous transmission assembly.

[0020] Optionally, the electroless plating tank is equipped with a placement platform suitable for supporting the hanger assembly. The placement platform has a longitudinal structure, and there are two placement platforms, which are symmetrically arranged on the two inner side walls of the electroless plating tank. The swing arm is arranged along the length of the placement platform.

[0021] Optionally, the transfer device may also include a third guide mechanism, with the swing arm slidably connected to the third guide mechanism.

[0022] Optionally, the third guide mechanism includes a third roller assembly, which includes at least one third roller assembly. The third roller assembly includes two rollers arranged opposite each other, with a sliding gap between the circumferential surfaces of the two rollers, and the swing arm is slidably disposed in the sliding gap.

[0023] Optionally, at least one electroless plating tank is equipped with a vibration motor, which is mounted on the electroless plating tank via a mounting bracket.

[0024] The present invention has the following advantages:

[0025] 1. Utilizing the technical solution of this invention, by setting up a hanger assembly, the lifting component provides support for the clamping component and the plate to be plated, and the clamping component clamps the plate to be plated. By setting up a circulating drive mechanism, the hanger assembly and the plate to be plated it holds can be moved above each electroless plating station; by setting up a lifting drive mechanism, the hanger assembly and the plate to be plated it holds can be driven to descend vertically into each electroless plating station and rise vertically until the plate to be plated is removed from the electroless plating station, thereby achieving vertical and continuous electroless plating production. The lifting component and the clamping component work together to ensure that the surface of the plate to be plated is perpendicular to its own direction of travel. Compared with the existing production method where the surface of the plate to be plated is parallel to its own direction of travel, this invention can greatly reduce the space occupied by the plate to be plated in the direction of travel of the vertical continuous electroless plating line, significantly increasing the number of plates to be plated that can be clamped in a vertical continuous electroless plating line. Without expanding the original site or the scale of the vertical continuous electroless plating line, it greatly increases the production capacity and multiplies the economic benefits of the enterprise.

[0026] 2. The hoisting and clamping components are detachably connected, allowing the clamping and hoisting components to be separated when the plate to be plated passes through the nickel bath. This separates the plate from the electroless plating line, thereby facilitating the increase of the circulation speed of the electroless plating line and ensuring that the plate to be plated reacts in the nickel bath for a sufficient time, thus shortening the production time of the electroless plating line, improving production efficiency, and increasing capacity.

[0027] 3. A reciprocating drive mechanism drives the swing arm to swing horizontally back and forth. A push rod is installed on the swing arm, which can drive the push rod to swing horizontally back and forth together. Since the push rod is eccentrically connected to the swing arm, the side where the center of gravity of the push rod is located will fall due to its own weight. Since the distance from the end of the push rod where the center of gravity is located to the center of rotation is greater than the vertical distance from the center of rotation of the push rod to the limiting surface, the side where the center of gravity is located of the push rod naturally falls to the end and abuts against the limiting surface during the swing of the swing arm. The push rod and the forward direction of the swing arm form an acute angle, which constitutes an anti-backward structure. As the swing arm moves forward, it drives the push rod forward as well. The upper part of the push rod abuts against the hanger assembly located in front of it, and the upper part of the push rod provides a forward thrust to the hanger assembly. Correspondingly, the hanger assembly applies a reverse force to the upper part of the push rod. Due to the abutment and limiting between the push rod and the limiting surface, the push rod can overcome the reverse force applied by the hanger assembly and will not rotate. Thus, the push rod pushes the hanger assembly forward by one step, realizing the transfer of the hanger assembly. As the swing arm moves backward, the hanger assembly maintains its current position and applies a thrust to the push rod in the forward direction. The hanger assembly applies a thrust to the upper part of the push rod in the forward direction. At this time, the push rod will be pushed to rotate around its rotation center. The push rod passes under the hanger assembly. After passing, the side where the center of gravity of the push rod is located automatically resets by its own weight. The swing arm moves forward again, and the push rod pushes the fixture assembly in front of it forward one step; the swing arm retracts, and the fixture assembly pushes the push rod in front of it to swing, the push rod passes under the fixture assembly, and the push rod swings back to its original position... This cycle repeats, thereby realizing the transfer of the fixture assembly. This invention has a simple structure and low cost. It can provide a separate drive for the electroless plating tank to realize the transfer of the fixture assembly. It facilitates the separate design of the fixture assembly and the electroless plating line, which helps to shorten the reaction time of other processes in the electroless plating line, improves the automation level of the electroless plating line, and increases production efficiency, thereby increasing capacity without expanding the site and scale.

[0028] 4. A vibration motor is installed on the chemical plating tank, which can shake out the air bubbles on the surface of the workpiece to be plated, so that the chemical solution in the chemical plating tank and the workpiece to be plated can be fully contacted, thus ensuring the quality of chemical plating. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a front view of a structure of a vertical continuous electroless plating line provided in an embodiment of the present invention;

[0031] Figure 2 It shows Figure 1 Side view;

[0032] Figure 3 It shows Figure 1 A top view (some mounting components are omitted);

[0033] Figure 4 It shows Figure 3 A magnified view of a portion of the image;

[0034] Figure 5 A top view of the cyclic drive mechanism is shown (the first chain is omitted).

[0035] Figure 6 It shows Figure 5 The main view;

[0036] Figure 7 It shows Figure 5 Side view;

[0037] Figure 8 A schematic diagram of a hanging fixture assembly provided in an embodiment of the present invention is shown;

[0038] Figure 9 It shows Figure 8 A schematic diagram of the boom structure in the diagram;

[0039] Figure 10 It shows Figure 9 Top view;

[0040] Figure 11 It shows Figure 9 Side view;

[0041] Figure 12 It shows Figure 8 A schematic diagram of the structure of the clamping component;

[0042] Figure 13 It shows Figure 12 Side view (the plate to be plated is omitted);

[0043] Figure 14 An assembly diagram of the hoisting assembly and the first guiding mechanism in an embodiment of the present invention is shown;

[0044] Figure 15 It shows Figure 14 Side view;

[0045] Figure 16 A schematic diagram of the lifting mechanism in an embodiment of the present invention is shown;

[0046] Figure 17 It shows Figure 16The main view of the lifting platform in the middle;

[0047] Figure 18 It shows Figure 17 Top view;

[0048] Figure 19 It shows Figure 17 Side view;

[0049] Figure 20 A schematic diagram of the cooperation structure between the lifting mechanism and the hoisting assembly in an embodiment of the present invention is shown;

[0050] Figure 21 A schematic diagram of the assembly structure of a single mounting assembly and a chemical plating line is shown.

[0051] Figure 22 A schematic diagram of the assembly structure of multiple mounting components and the chemical plating line is shown;

[0052] Figure 23 It shows Figure 22 Top view (some lifting and clamping components are omitted);

[0053] Figure 24 It shows Figure 22 Side view (some lifting and clamping components are omitted);

[0054] Figure 25 A front view of one structure of the transfer device provided in an embodiment of the present invention is shown;

[0055] Figure 26 It shows Figure 25 Top view;

[0056] Figure 27 It shows Figure 25 Side view;

[0057] Figure 28 An assembly diagram of the push rod and the swing arm is shown;

[0058] Figure 29 A schematic diagram of the guide wheel assembly is shown.

[0059] Figure 30 It shows Figure 29 Side view;

[0060] Figure 31 It shows Figure 29 Top view;

[0061] Figure 32 This shows a top view of the transfer device provided in an embodiment of the present invention disposed on a chemical plating tank;

[0062] Figure 33 It shows Figure 32 Main view (with added hanger components);

[0063] Figure 34 It shows Figure 33 A magnified view of a portion of the image;

[0064] Figure 35 It shows Figure 33 Top view;

[0065] Figure 36 It shows Figure 35 A magnified view of a portion of the image;

[0066] Figure 37 It shows Figure 35 Side view;

[0067] Figure 38 It shows Figure 37 A magnified view of a portion of the image;

[0068] Figure 39 A front view of a vibratory motor mounted on a chemical plating bath is shown.

[0069] Figure 40 It shows Figure 39 Top view;

[0070] Figure 41 The front view of the fixed guide rail is shown;

[0071] Figure 42 A schematic diagram of the structure of the fixed guide rail and the mounting assembly is shown.

[0072] Figure 43 The diagram shows the state when the transfer device is in the forward position;

[0073] Figure 44 A state diagram is shown when the transfer device is in the reverse state.

[0074] Explanation of reference numerals in the attached figures:

[0075] 1. Chemical plating station; 11. Chemical plating tank; 2. Circulation drive mechanism; 21. First chain; 22. First sprocket; 23. Circulation drive motor; 3. Hanging assembly; 31. Lifting assembly; 311. Boom; 312. Hanging arm; 3121. Hanging arm body; 3122. Hanging part; 32. Clamping assembly; 321. Clamp; 322. Clamping frame; 323. Connecting arm; 3231. Connecting part; 3232. Guide part; 324. Ear plate; 33. Snap-fit ​​structure; 331. Protrusion; 332. Groove; 3321. Guide plate; 34. Support structure; 341. Support shaft; 342. Support bearing; 4. First guide mechanism; 41. First guide post; 411. Limiting block; 42. First roller assembly; 421. First roller unit; 4211. First roller; 5. Lifting drive mechanism; 51. Lifting platform; 52. Second sprocket; 53. 54. Two chains; 55. Lifting drive motor; 56. Counterweight; 67. Second guide mechanism; 68. Second guide column; 69. Second roller assembly; 60. Second roller unit; 61. Second roller; 62. Transfer device; 71. Swinging mechanism; 72. Limiting surface; 73. Swing arm; 74. Push rod; 75. First rotating shaft; 76. Movable groove; 77. Reciprocating drive mechanism; 78. Cam transmission mechanism; 79. Cam; 7212, Limiting plate; 72121, Limiting groove; 7213, Synchronous transmission assembly; 72131, Synchronous shaft; 7214, Synchronous drive motor; 73, Third guide mechanism; 731, Third roller assembly; 7311, Third roller; 7312, Roller bracket; 7313, Second rotating shaft; 74, Placement platform; 8, Vibration motor; 9, Fixed guide rail; 91, Upward slope; 92, Downward slope; 10, Plate to be plated. Detailed Implementation

[0076] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0077] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0078] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0079] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0080] To facilitate the introduction of the technical solution of the present invention, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments, but the embodiments should not be regarded as limitations on the present invention.

[0081] Example

[0082] A vertical continuous electroless plating line, as referenced Figures 1-4 The system includes a chemical plating station 1, a circulation drive mechanism 2, a fixture assembly 3, and a lifting drive mechanism 5. Multiple chemical plating stations 1 are arranged sequentially. The circulation drive mechanism 2 is positioned above the chemical plating stations 1, with its power output direction aligned with the circulation direction of the production line. Multiple fixture assemblies 3 are arranged side-by-side on the circulation drive mechanism 2, allowing them to pass sequentially through each chemical plating station 1 under the drive of the circulation drive mechanism 2. Each fixture assembly 3 is adapted to hold a plate to be plated 10, ensuring that the surface of the plate to be plated 10 is perpendicular to its own direction of travel. The lifting drive mechanism 5 is connected to the fixture assemblies 3 to drive the fixture assemblies 3 downwards until the plate to be plated 10 enters the chemical plating station 1 and upwards until the plate to be plated 10 leaves the chemical plating station 1.

[0083] By utilizing the technical solution of this invention, a hanger assembly 3 is provided, in which the lifting assembly 31 provides support for the clamping assembly 32 and the plate to be plated 10, and the clamping assembly 32 can clamp the plate to be plated 10. By providing a circulating drive mechanism 2, the hanger assembly 3 and the plate to be plated 10 it clamps can be moved to above each electroless plating station 1; by providing a lifting drive mechanism 5, the hanger assembly 3 and the plate to be plated 10 it clamps can be driven to descend vertically into each electroless plating station 1, and to rise vertically until the plate to be plated 10 is removed from the electroless plating station 1, thereby achieving vertical and continuous electroless plating production. The hoisting assembly 31 and the clamping assembly 32 work together to make the surface of the plate to be plated 10 perpendicular to its own direction of travel. Compared with the existing production method in which the surface of the plate to be plated 10 is parallel to its own direction of travel, the present invention can greatly reduce the space occupied by the plate to be plated 10 in the direction of travel of the vertical continuous chemical plating line, and greatly increase the number of plates to be plated 10 that can be clamped by a vertical continuous chemical plating line. Without expanding the original site or the scale of the vertical continuous chemical plating line, the production capacity is greatly improved, and the economic benefits of the enterprise are multiplied.

[0084] "Multiple chemical plating stations 1 are provided, arranged sequentially." Specifically, chemical plating station 1 is equipped with chemical plating tank 11 or other chemical plating equipment, and the arrangement of chemical plating stations 1 follows the order of the chemical plating process for the parts to be plated. Taking the chemical plating of a PCB board as an example, the chemical plating process for a PCB board includes, in sequence: degreasing, water washing, micro-etching, acid washing, pre-immersion, palladium activation, pure water washing, post-acid immersion, chemical nickel plating, chemical gold plating, and gold recovery. Therefore, correspondingly, chemical plating station 1 is provided with, in sequence, a degreasing tank, a water washing tank, a micro-etching tank, an acid washing tank, a pre-immersion tank, a palladium activation tank, a pure water washing tank, a post-acid immersion tank, a chemical nickel plating tank, a chemical gold plating tank, and a gold recovery tank.

[0085] To facilitate the continuity of the electroless plating production of the plate to be plated 10, the electroless plating stations 1 are connected end to end, forming a circular production line. The circulating drive mechanism 2 is used to drive the hanger assembly 3 to pass through each electroless plating station 1 in sequence to perform the corresponding electroless plating process. Therefore, the power output direction of the circulating drive mechanism 2 is set along the circular production line.

[0086] During production, the circulating drive mechanism 2 drives the hanger assembly 3 and the plate to be plated 10 on it to rotate around the production line, referring to... Figures 21-24 Each plate to be plated 10 is sequentially processed through each chemical plating tank 11, completing one cycle and thus the entire chemical plating process. As a specific embodiment, refer to... Figures 5-7In this embodiment, the cyclic drive mechanism 2 includes a cyclic drive motor 23 and a horizontally arranged transmission assembly. The transmission assembly includes first sprockets 22 located at both ends of the production line, with a first chain 21 connected to each of the two first sprockets 22. One of the first sprockets 22 is a drive sprocket, driven by the cyclic drive motor 23. The hanger assembly 3 is connected to the first chain 21 and runs synchronously with the first chain 21.

[0087] To improve the operational stability of the hanger assembly 3, the transmission assembly is configured with upper and lower layers, with two first sprockets 22 located at the same end coaxially connected. The hanger assembly 3 is connected between the upper and lower first chains 21.

[0088] Hanging component 3, refer to Figures 8-13 It includes a liftable hoisting assembly 31 and a clamping assembly 32 connected to the hoisting assembly 31. The clamping assembly 32 includes at least two clamps 321 for clamping the plate to be plated 10 so that the surface of the plate to be plated 10 is perpendicular to its own direction of travel.

[0089] Using the technical solution of the present invention, the hoisting component 31 can be raised and lowered, and the clamping component 32 is connected to the hoisting component 31 and can be raised and lowered together with the hoisting component 31 to realize the action of entering and exiting each chemical plating tank 11 in the entire production line.

[0090] Specifically, the clamping assembly 32 includes at least two clamps 321, which can be used to clamp the plate to be plated 10. The two clamps 321 clamp the plate to be plated 10 in such a way that the surface of the plate to be plated 10 is perpendicular to its own direction of travel.

[0091] Optionally, the lifting assembly 31 and the clamping assembly 32 are detachably connected.

[0092] Specifically, the chemical plating process of the PCB board includes chemical nickel plating, and correspondingly, the chemical plating tank 11 includes a chemical nickel plating tank. In the chemical plating process, the reaction time of the board to be plated 10 in the chemical nickel plating tank is significantly longer than the reaction time in other chemical plating tanks 11. In order to ensure that the reaction time of the board to be plated 10 in the chemical nickel plating tank is sufficient, and the entire production line moves at a constant speed, the board to be plated 10 must be placed in all chemical plating tanks 11 for the same amount of time, which results in low production efficiency of the production line. In this embodiment of the invention, the hoisting component 31 and the clamping component 32 are detachably connected, so that when the plate to be plated 10 passes through the electroless nickel plating bath, the clamping component 32 and the hoisting component 31 can be separated, that is, the plate to be plated 10 can be separated from the circulation drive mechanism 2. This facilitates the dynamic balance of the number of plates to be plated 10 entering and leaving the electroless nickel plating bath by setting a reasonable length of the electroless nickel plating bath and the circulation speed of the circulation drive mechanism 2. It is not necessary to extend the processing time of the plates to be plated 10 in other electroless nickel plating baths 11 in the vertical continuous electroless plating line (hereinafter referred to as the electroless plating line), thereby increasing the circulation speed of the electroless plating line, shortening the production time of the plates to be plated, and further improving the production capacity.

[0093] Optional, refer to Figures 8-13 The lifting assembly 31 includes a horizontally positioned boom 311, perpendicular to the travel direction of the plate to be plated 10; the clamping assembly 32 is connected to the boom 311. The boom 311 is a cantilever structure, and its connection strength can be improved by adding reinforcing ribs. Specifically, reinforcing ribs are connected between the boom 311 and the first roller assembly 42, which will be described later. Compared to existing production lines, the boom 311 provides an assembly point for the clamping assembly 32, ensuring an appropriate distance between the plate to be plated 10 and the circulating drive mechanism 2 of the production line, thus avoiding interference with the cyclic operation of the circulating drive mechanism 2.

[0094] Optional, refer to Figures 8-13 The boom 311 is provided with a hanging part 3122. The hanging part 3122 facilitates the suspension connection of the clamping assembly 32.

[0095] Specifically, in this embodiment, the hoisting assembly 31 further includes two hanging arms 312 spaced apart on the boom 311. Each hanging arm 312 includes a hanging arm body 3121 and a hanging portion 3122 protruding from the hanging arm body 3121. Specifically, in this embodiment, the hanging arm body 3121 is vertically arranged, and the hanging portion 3122 is located at the lower end of the hanging arm body 3121.

[0096] Optional, refer to Figures 8-13 The clamping assembly 32 includes a clamping frame 322, and clamps 321 are arranged side by side and spaced apart on the clamping frame 322. The opening and closing direction of the clamps 321 is arranged along the traveling direction of the plate to be plated 10. Specifically, the clamping frame 322 includes a clamping frame body parallel to the boom 311.

[0097] Optionally, the clamping frame 322 is provided with a joint 3231 that cooperates with the hanging part 3122, and the joint 3231 is detachably hung on the hanging part 3122.

[0098] Specifically, refer to Figures 8-13 The clamping frame 322 includes two engaging arms 323, which are respectively connected to both ends of the clamping frame body, and engaging portions 3231 are provided on the engaging arms 323. In this embodiment, as shown... Figure 12 As shown, the joint portion 3231 is provided at the upper end of the joint arm 323. The joint portion 3231 cooperates with the hook portion 3122 to hook the clamping assembly 32 onto the lifting assembly 31 and move together with the lifting assembly 31.

[0099] Optionally, along the extension direction of the boom 311: the two hook-on portions 3122 are arranged opposite to each other, and the two joint portions 3231 are arranged facing each other; or, the two hook-on portions 3122 are arranged facing each other, and the two joint portions 3231 are arranged opposite to each other; or, the two hook-on portions 3122 are arranged in the same direction, and the two joint portions 3231 are arranged in the same direction. In this embodiment, refer to... Figure 8 Two hook parts 3122 are disposed opposite to each other on the outer side of the hook arm 312, and two joint parts 3231 are disposed opposite to each other on the inner side of the joint arm 323.

[0100] Optionally, the clamping frame 322 has a guide portion 3232 to facilitate the insertion of the plate to be plated 10 into the chemical plating tank 11. The guide portion 3232 gradually tapers inward toward the clamp 321 until its width is no greater than the width of the plate to be plated 10. Specifically, in this embodiment, two connecting arms 323 are vertically arranged and gradually taper inward at the bottom until the distance between the two connecting arms 323 is no greater than the width of the plate to be plated 10, forming the aforementioned guide portion 3232.

[0101] Optionally, the clamping frame 322 is provided with an ear plate 324 protruding outward, the ear plate 324 having a force-bearing surface parallel to the surface of the plate to be plated 10. When the lifting assembly 31 is separated from the clamping assembly 32, the clamping assembly 32 is inserted into the chemical plating tank 11, and is adapted to move the plate to be plated 10 within the chemical plating tank 11 by pushing the ear plate 324. Specifically, in this embodiment, the ear plate 324 is provided on the connecting arm 323, and the two ear plates 324 on the two connecting arms 323 are symmetrically arranged.

[0102] Optionally, the lifting assembly 31 and the clamping assembly 32 are connected by a snap-fit ​​structure 33. The snap-fit ​​structure 33 enables quick assembly and disassembly of the lifting assembly 31 and the clamping assembly 32, and also limits the movement of the lifting assembly 31 and the clamping assembly 32 to ensure a stable connection between them.

[0103] Optionally, the snap-fit ​​structure 33 includes a protrusion 331 and a groove 332 that cooperate with each other. The protrusion 331 is provided on one of the lifting assembly 31 and the clamping assembly 32, and the groove 332 is provided on the other of the lifting assembly 31 and the clamping assembly 32. Specifically, in this embodiment, the groove 332 is provided on the hook-on portion 3122, and the protrusion 331 is provided on the joint portion 3231.

[0104] Optional, refer to Figures 9 to 11 The groove 332 is positioned perpendicular to the traveling direction of the plate to be plated 10 along its length, and the cross-sectional shape of the groove 332 in the width direction includes a rectangle, an inverted triangle, or an inverted trapezoid. In this embodiment, the cross-sectional shape of the groove 332 of the hook portion 3122 in the width direction is an inverted trapezoid. Correspondingly, the structure of the protrusion 331 of the joint portion 3231 matches this.

[0105] Optionally, a guide plate 3321 is provided within the groove 332. The guide plate 3321 is inclined within the groove 332 and is used to guide the lifting assembly 31 and the clamping assembly 32 to engage. For ease of assembly and disassembly, in this embodiment, the outer end of the groove 332 along its length is open, and the two ends of the groove 332 on the two hook-up portions 3122 are opposite to each other. The guide plate 3321 is located at the inner end of the groove 332, that is, the other end opposite to the aforementioned outer opening. The guide plate 3321 is inclined from the inside to the outside within the groove 332, allowing the protrusion 331 of the joint portion 3231 to slide along the guide plate 3321 into the groove 332, facilitating quick alignment and engagement of the joint portion 3231 and the hook-up portion 3122, thus improving production efficiency.

[0106] The snap-fit ​​structure 33 is achieved by using a protrusion 331 and a groove 332 together. The structure is simple and the cost is low. Of course, other snap-fit ​​structures 33 that can achieve quick assembly and disassembly can also be selected according to actual needs. No restrictions are imposed here.

[0107] Optional, refer to Figure 14 and Figure 15 The mounting assembly 3 includes a first guide mechanism 4, which includes a vertically arranged first guide post 41 and a first roller assembly 42 slidably mounted on the first guide post 41. The lifting assembly 31 is connected to the first roller assembly 42. By setting the first roller assembly 42 and connecting the lifting assembly 31 to the first roller assembly 42, the lifting assembly 31 can slide along the first guide post 41, which limits and guides the lifting and lowering of the lifting assembly 31. The first guide post 41 is suitable for connection with the circulating drive mechanism 2. When the circulating drive mechanism 2 rotates, it drives the first guide post 41 and the lifting assembly 31, clamping assembly 32, and plate to be plated 10 to move together, thus performing the cyclic production of the entire chemical plating line. Specifically, refer to... Figure 21 The two ends of the first guide post 41 are fixedly connected to the upper and lower first chains 21 of the cyclic drive mechanism 2, respectively.

[0108] Optionally, the first roller assembly 42 includes at least one first roller unit 421 spaced apart along the extension direction of the first guide post 41. In this embodiment, two first roller units 421 are spaced apart along the extension direction of the first guide post 41. Providing two first roller units 421 can enhance the supporting effect on the lifting assembly 31 and improve the stability of the lifting assembly 31 during the lifting process.

[0109] Optionally, the first roller unit 421 includes at least one sliding group circumferentially spaced around the first guide post 41. Each sliding group includes two first rollers 4211, which are positioned opposite each other on both sides of the first guide post 41 and slidably connected to the sidewalls of the first guide post 41. In this embodiment, two sliding groups are circumferentially spaced around the first guide post 41, totaling four first rollers 4211, arranged in pairs opposite each other. As a specific implementation, the first guide post 41 has a rectangular cross-section, and the four first rollers 4211 are arranged along the four sides of the first guide post 41, with adjacent first rollers 4211 axially perpendicular to each other. Similarly, providing two sliding groups enhances the support for the lifting assembly 31, improving the stability and smoothness of the lifting assembly 31 during lifting and lowering. Of course, the first guide post 41 can also be other structures, such as a cylinder, in which case the axial length of the first roller 4211 can be appropriately shortened and multiple sliding groups can be set around the first guide post 41.

[0110] Optional, refer to Figure 14 The first guide post 41 has limit blocks 411 at both ends to restrict the lifting stroke of the hoisting assembly 31. Specifically, the first roller assembly 42 includes a sliding seat, and the first roller 4211 is disposed on the sliding seat. The limit blocks 411 can abut against the sliding seat to restrict the lifting stroke of the sliding seat, which in turn restricts the lifting stroke of the hoisting assembly 31. The positions of the two limit blocks 411 on the first guide post 41 are set as needed, upward to ensure that the plate to be plated 10 can be lifted above the chemical plating tank 11, and downward to ensure that the plate to be plated 10 can be fully inserted into the chemical plating tank 11.

[0111] Optional, refer to Figures 16-20 The vertical continuous electroless plating line includes a lifting drive mechanism 5, which is connected to a hoisting assembly 31. The lifting drive mechanism 5 is used to drive the hoisting assembly 31 to move up and down along the first guide column 41.

[0112] Specifically, in combination Figures 17 to 19 The lifting drive mechanism 5 includes a lifting platform 51, which has a support surface arranged along the production line. The support surface is suitable for lifting and lowering the hoisting assembly 31. Specifically, the support surface is located between the hanging assembly 3 and the circulating drive mechanism 2.

[0113] Optional, refer to Figure 20The hoisting assembly 31 has a support structure 34 on the side away from the clamping assembly 32, and the support structure 34 is adapted to press against the supporting surface. Specifically, in this embodiment, the support structure 34 includes a support shaft 341, one end of which is connected to the first roller assembly 42, and the other end extends inward, that is, towards the side near the circulating drive mechanism 2. A support bearing 342 is fitted on the support shaft 341. The support bearing 342 is adapted to press against the bearing surface of the lifting platform 51, thereby enabling the lifting platform 51 to drive the hoisting assembly 31 to rise and fall.

[0114] Optional, refer to Figure 16 The lifting drive mechanism 5 includes a second sprocket 52 and a second chain 53 that mesh with each other. The second sprocket 52 is fixedly mounted on the frame, and both ends of the second chain 53 are connected to the lifting platform 51. Multiple second sprockets 52 are provided, one of which is a drive sprocket driven by the lifting drive motor 54. To improve the balance on both sides of the electroless plating line, the lifting drive mechanism 5 also includes counterweights 55. Since the length of the lifting platform 51 is significantly greater than its width, in this embodiment, two counterweights 55 are provided, symmetrically connected to the second chain 53. Of course, the number and weight of the counterweights 55 can be adjusted as needed.

[0115] The vertical continuous electroless plating line includes a second guide mechanism 6, which includes a vertically arranged second guide post 61 and a second roller assembly 62 slidably disposed on the second guide post 61. The lifting platform 51 is connected to the second roller assembly 62.

[0116] The structure of the second roller assembly 62 is similar to that of the first roller assembly 42. The second roller assembly 62 includes at least one second roller unit 621. The second roller unit 621 includes at least one sliding group. The sliding group includes two opposing second rollers 6211.

[0117] To ensure stability, at least two second guide columns 61 are arranged side-by-side along the length of the production line. A corresponding number of second roller assemblies 62 are provided on the lifting platform 51. Specifically, in one embodiment, three first guide columns 41 are arranged at equal intervals along the length of the production line. The lifting platform 51 is connected to the second roller assemblies 62, which guide the lifting of the lifting platform 51, thereby further ensuring the vertical lifting of the hanging assembly 3.

[0118] A fixed guide rail 9 is installed on the frame. The fixed guide rail 9 is located above the electroless plating station 1 and at the loading and unloading point of the electroless plating line. It is arranged around the production line, as shown in the reference diagram. Figure 41 and Figure 42 The fixed guide rail 9 includes two straight segments and an arc segment connecting the two straight segments, so as to... Figure 41From a positional perspective, two straight segments are respectively located on the front and rear sides. One end of one straight segment is connected to an upward slope 91, and the other end of the other straight segment is connected to a downward slope 92. The support shaft 341 is adapted to press against the bearing surface of the lifting platform 51. The lifting platform 51 carries the hanging assembly 3, which descends to be immersed in the chemical plating tank 11 for chemical plating treatment, and then rises to detach from the chemical plating tank 11. The lifting platform 51 lifts the hanging assembly 3, which ascends along the first guide column 41 to contact the upward slope 91. Driven by the circulating drive mechanism 2, the hanging assembly 3 climbs up the upward slope 91 from one side to the fixed guide rail 9, and then descends down the downward slope 92 from the other side to the lifting platform 51. The fixed guide rail 9 is set at the loading and unloading points so that the hanging assembly 3 can ascend a certain distance away from the workers, preventing collisions between the hanging assembly 3 and the workers and protecting their personal safety.

[0119] The existing vertical continuous electroless plating line includes different electroless plating tanks 11 corresponding to different processes. The entire vertical continuous electroless plating line is moved using a transmission mechanism. Multiple hanger assemblies 3 are set on the transmission mechanism, and the plates to be plated 10 are clamped on the hanger assemblies 3. The transmission mechanism drives the hanger assemblies 3 and the plates to be plated 10 to move forward. When passing each electroless plating station 1, the hanger assemblies 3 descend, driving each plate to be plated 10 down to be immersed in the respective electroless plating tank 11 for electroless plating treatment. After treatment, the hanger assemblies 3 rise, lifting the plates to be plated 10 out of the electroless plating tank 11. The transmission mechanism drives each plate to be plated 10 forward to the next electroless plating station 1. The hanger assemblies 3 drive the plates to be plated 10 down, immersing them in the electroless plating tank 11 for reaction. After treatment, the hanger assemblies 3 drive the plates to be plated 10 up, lifting them out of the electroless plating tank 11... This cycle repeats, realizing a continuous electroless plating process of vertical immersion and removal from the electroless plating tank 11.

[0120] Since the reaction time of the plate to be plated 10 is different in different chemical plating tanks 11, the reaction time of the entire vertical continuous chemical plating line in each chemical plating tank 11 must meet the time of the process with the longest reaction time.

[0121] Specifically, in the chemical plating process of PCB boards, the reaction time of the board to be plated 10 in the nickel plating bath is the longest, taking 10 minutes as an example. The reaction time of the board to be plated 10 in other chemical plating baths 11 is less than 10 minutes. The reaction time of the entire vertical continuous chemical plating line must be set to 10 minutes, which leads to the extension of the chemical plating process time of the whole process, which is not conducive to improving the degree of automation, resulting in low production efficiency and low capacity.

[0122] To address the aforementioned issues, optionally, at least one chemical plating tank 11 is provided with a transfer device 7 for transferring the mounting bracket assembly 3.

[0123] The transfer device 7 is suitable for installation on the electroless plating station 1. Specifically, the transfer device 7 is installed on the electroless plating tank 11. (Refer to...) Figures 25-28 The transfer device 7 includes a swing mechanism 71 and a reciprocating drive mechanism 72. The swing mechanism 71 includes a limiting surface 711, a swing arm 712, and push rods 713. The limiting surface 711 is longitudinally elongated; the swing arm 712 is located above the limiting surface 711; multiple push rods 713 are provided and spaced apart on the swing arm 712; the push rods 713 are eccentrically rotatably mounted on the swing arm 712, with the distance from the end of the push rod 713 on the side where its center of gravity is located to the center of rotation being greater than the vertical distance from the center of rotation of the push rod 713 to the limiting surface 711, causing the side of the push rod 713 on the side where its center of gravity is located to naturally fall to its end and abut against the limiting surface 711. The push rod 713 and the forward direction of the swing arm 712 form an acute angle, constituting an anti-backward structure; the reciprocating drive mechanism 72 is connected to the swing arm 712 and is suitable for driving the swing arm 712 to perform horizontal reciprocating swing.

[0124] Combination Figures 33-35 The reciprocating drive mechanism 72 drives the swing arm 712 to swing horizontally back and forth. A push rod 713 is set on the swing arm 712, and the swing arm 712 can drive the push rod 713 to swing horizontally back and forth together. Since the push rod 713 is eccentrically rotated and connected to the swing arm 712, the side where the center of gravity of the push rod 713 is located will fall down by its own weight. Since the distance from the end of the side where the center of gravity of the push rod 713 is located to the center of rotation is greater than the vertical distance from the center of rotation of the push rod 713 to the limiting surface 711, the side where the center of gravity of the push rod 713 is located will naturally fall down to the end and abut against the limiting surface 711 during the swing of the swing arm 712. The push rod 713 and the forward direction of the swing arm 712 form an acute angle, which constitutes an anti-backward structure.

[0125] The aforementioned transfer device 7, used in the PCB electroless plating process, facilitates the separation of the fixture assembly 3 from the main drive mechanism of the vertical continuous electroless plating line. This allows the plate to be plated 10, held by the fixture assembly 3, to react for a sufficient time within the electroless plating tank 11, while simultaneously propelling the fixture assembly 3 and the plate to be plated 10 forward. By rationally setting the moving frequency and step size of the transfer device 7, a dynamic balance can be achieved in the number of plates to be plated 10 within the electroless plating tank 11, with one plate to be plated entering at the front and another plate to be plated being removed at the back. The fixture assembly 3 removed from the electroless plating tank 11 is then reconnected to the vertical continuous electroless plating line. Consequently, the processing time in other processes can be reduced to within 10 minutes. Therefore, the reaction time of the vertical continuous electroless plating line can be shortened, improving production efficiency and increasing capacity.

[0126] Specifically, the limiting surface 711 is elongated, and multiple push rods 713 mounted on the swing arm 712 fall under their own weight, with their lower ends contacting the ends of the swing arm 712. The limiting surface 711 limits the push rods 713, causing them to be in an inclined state when they come into contact with the limiting surface 711, that is, the push rods 713 and the forward direction of the swing arm 712 form an acute angle. This allows the push rods 713 to move forward when the swing arm 712 moves them forward, and the push rods 713 to push the hanger assembly 3 forward when the swing arm 712 moves them backward, causing them to swing and avoid the ear plate 324, thus maintaining the hanger assembly 3 in its current position. When the transfer device 7 is mounted on the chemical plating tank 11, the length of the limiting surface 711 is along the long side of the chemical plating tank 11, which is also along the forward direction of the hanger assembly 3. The limiting surface 711 can be a boss provided on the inner wall of the chemical plating tank 11, and the upper surface of the boss constitutes the limiting surface 711.

[0127] Preferably, for ease of assembly and to achieve a compact structure, the swing arm 712 and the limiting surface 711 are integrally formed. Specifically, refer to... Figure 28 In this embodiment, the swing arm 712 is made of square steel, and the bottom wall of the inner cavity of the square steel forms the aforementioned limiting surface 711. Holes are made on the two side walls of the square steel, and the push rod 713 is rotatably mounted on the two side walls of the square steel via a first rotating shaft 714. A movable groove 715 is provided on the top wall of the square steel to allow the push rod 713 to swing. The length of the movable groove 715 is not less than the length of the push rod 713, so that the push rod 713 can perform a 360° rotational movement around its first rotating shaft 714. (Refer to...) Figure 26 The movable slot 715 is elongated and has multiple slots, each corresponding to a push rod 713. Alternatively, the multiple movable slots 715 can be connected. The lower end of the push rod 713 falls under its own weight and contacts the bottom wall of the square steel, while the upper end of the push rod 713 protrudes from the upper surface of the square steel. Specifically, the first rotating shaft 714 can be made of bolts.

[0128] Optionally, the end face of the push rod 713 on the side where its center of gravity is located is designed as an inclined surface suitable for contacting the limiting surface 711. That is, the end face of the push rod 713 on the side where its center of gravity is located is a horizontal surface when it comes into contact with the limiting surface 711, and it is completely in contact with the limiting surface 711. This increases the contact area between the end of the push rod 713 and the limiting surface 711, making the push rod 713 more stable after falling under its own weight, thereby enabling it to push the hanger assembly 3 forward more stably.

[0129] Reference Figure 43 As the swing arm 712 moves forward, with Figure 43As shown in the orientation, the forward direction is to the left. The push rod 713 is rotatably connected to the swing arm 712 via the first rotating shaft 714. The part located above the first rotating shaft 714 is called the upper part of the push rod 713, and the part located below the first rotating shaft 714 is called the lower part of the push rod 713. The pivot arm 712 drives the push rod 713 forward together. The upper part of the push rod 713 abuts against the ear plate 324 of the hanger assembly 3 located in front of the push rod 713. The upper part of the push rod 713 provides a forward thrust to the ear plate 324, and the ear plate 324 tends to move forward. Correspondingly, the ear plate 324 applies a reverse force to the upper part of the push rod 713, so that the upper part of the push rod 713 tends to rotate around the first pivot 714 toward the rear. However, due to the abutment and limitation between the push rod 713 and the limiting surface 711, the push rod 713 overcomes the reverse force applied by the ear plate 324 and will not rotate. Thus, the push rod 713 pushes the hanger assembly 3 forward by one step, realizing the transfer of the hanger assembly 3.

[0130] Reference Figure 44 During the backward movement of the 712 swing arm, with Figure 44 As indicated by the orientation, the swing arm 712 moves to the right to reverse. The mounting assembly 3 maintains its current position and applies a thrust to the push rod 713 in the forward direction. Figure 44 In this process, the ear plate 324 applies a leftward thrust to the upper part of the push rod 713, at which point the push rod 713 is pushed to rotate around its rotation center. Figure 44 The movement is characterized by a counter-clockwise swing, with the push rod 713 passing under the ear plate 324. After passing, the push rod 713 automatically returns to its original position by its own weight.

[0131] The swing arm 712 moves forward again, and the push rod 713 pushes the fixture assembly 3 located in front of it forward one step; the swing arm 712 retracts, and the fixture assembly 3 pushes the push rod 713 located in front of it to swing, the push rod 713 passes under the fixture assembly 3, and the push rod 713 swings back to its original position... This cycle repeats, thereby realizing the transfer of the fixture assembly 3. The transfer device 7 has a simple structure and low cost. It can provide a separate drive for the electroless plating tank 11 to realize the transfer of the fixture assembly 3. It can facilitate the separate design of the fixture assembly 3 and the electroless plating line, which is conducive to shortening the reaction time of other processes in the electroless plating line, improving the automation level of the electroless plating line, and increasing production efficiency, thereby increasing production capacity without expanding the site and scale.

[0132] Optionally, the reciprocating drive mechanism 72 includes a cam transmission mechanism 721 or a drive cylinder. The drive cylinder includes a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder.

[0133] Specifically, in this embodiment, the cam transmission mechanism 721 includes a cam 7211 and a limiting plate 7212, with the limiting plate 7212 connected to the swing arm 712. The limiting plate 7212 has an annular limiting groove 72121 that cooperates with the cam 7211. The limiting groove 72121 is elongated, and the cam 7211 is slidably disposed within it. Furthermore, the limiting groove 72121 is vertically oriented along its length, converting the rotation of the cam 7211 into the horizontal reciprocating oscillation of the swing arm 712. Using the cam transmission mechanism 721 provides high precision and synchronization, enabling the two swing arms 712 to oscillate synchronously.

[0134] Optionally, in this embodiment, refer to Figure 26 Two swing mechanisms 71 are provided and arranged side by side, with the two swing arms 712 connected by a synchronous transmission assembly 7213. Specifically, when installed on the chemical plating tank 11, the two swing mechanisms 71 are respectively located on two sides of the chemical plating tank 11. The two swing arms 712 are connected by the synchronous transmission assembly 7213, so that the push rods 713 on both sides can synchronously push the hanger assembly 3 on the chemical plating tank 11 forward.

[0135] Optional, refer to Figure 26 and Figure 27 The synchronous transmission assembly 7213 includes a synchronous shaft 72131, with two cams 7211 respectively located at both ends of the synchronous shaft 72131. The synchronous shaft 72131 is connected to a synchronous drive motor 7214. The synchronous drive motor 7214 drives the synchronous shaft 72131 to rotate, and the cams 7211 at both ends of the synchronous shaft 72131 rotate simultaneously. Due to the limiting effect of the limiting groove 72121, the rotation of the two cams 7211 drives the limiting plates 7212 on both sides and the two swing arms 712 to achieve synchronous reciprocating motion. Of course, as an alternative implementation, the two swing arms 712 can also be connected by a chain or synchronous belt drive to achieve synchronous swinging.

[0136] Optionally, the transfer device 7 also includes a third guide mechanism 73, as shown in the reference. Figures 25-27 The swing arm 712 is slidably connected to the third guide mechanism 73. By setting the third guide mechanism 73, the horizontal reciprocating swing of the swing arm 712 can be guided and limited.

[0137] Optionally, the third guide mechanism 73 includes a third roller assembly 731, as shown in the reference. Figures 29-31The third roller assembly 731 includes at least one roller assembly, which includes two opposing third rollers 7311 with a sliding gap between them. The swing arm 712 is slidably disposed within the sliding gap. In this embodiment, the two third rollers 7311 are arranged opposite each other in the vertical direction. On the one hand, the third rollers 7311 can guide the movement of the swing arm 712, and on the other hand, they can also support the swing arm 712. Of course, in other embodiments, ... Figure 25 From the perspective of orientation, the two third rollers 7311 can also be arranged opposite each other in the front-to-back direction. In this case, the axes of the two third rollers 7311 are perpendicular to the swing arm 712, i.e., vertically arranged. In this case, the swing arm 712 can be provided with a separate support.

[0138] Alternatively, the third roller assembly 731 can include two roller assemblies, with the axes of the third roller 7311 in the two roller assemblies being perpendicularly distributed, that is, with... Figure 25 In terms of orientation, in addition to the two vertical third rollers 7311, there may also be two front-to-back third rollers 7311. The axes of the two front-to-back third rollers 7311 are perpendicular to the swing arm 712, that is, they are set vertically.

[0139] The third guide mechanism 73 employs a roller assembly, which includes two opposing third rollers 7311. A swing arm 712 is slidably positioned between the circumferential surfaces of the two third rollers 7311, improving the smoothness of the swing arm 712's movement. Specifically, the third rollers 7311 are rotatably mounted on a roller bracket 7312 via a second rotating shaft 7313, and the roller bracket 7312 is located on the chemical plating tank 11. The second rotating shaft 7313 can be a bolt.

[0140] Specifically, refer to Figure 25 Two third roller assemblies 731 are provided, one at each end of the swing arm 712. The number of third roller assemblies 731 can be adjusted appropriately according to the actual length of the swing arm 712. For example, refer to... Figure 32 Since the swing arm 712 is relatively long, each swing mechanism 71 is provided with three third roller assemblies 731. In a preferred embodiment, the three third roller assemblies 731 are evenly spaced along the length of the swing arm 712.

[0141] Of course, as an alternative implementation, the third guide mechanism 73 includes a guide rail or slide rail disposed along the forward direction of the hanger assembly 3, and a slider that slides in cooperation with the guide rail or slide rail, the slider being fixedly connected to the swing arm 712.

[0142] The aforementioned transfer device 7 is not only applicable to the nickel plating tank in the chemical plating process of PCB boards, but also to other chemical plating tanks 11 in the chemical plating process of other products, so as to realize the independent transfer of the hanger assembly 3 after it is separated from the entire vertical continuous chemical plating line.

[0143] Optionally, the chemical plating tank 11 also includes a placement platform 74 suitable for supporting the fixture assembly 3 that holds the workpiece to be plated, see reference. Figures 36-38 The placement platform 74 has a longitudinal structure, and there are two placement platforms 74, symmetrically arranged on the two inner side walls of the chemical plating tank 11; the swing arm 712 is arranged along the length of the placement platform 74. The ear plate 324 on the side of the hanger assembly 3 is mounted on the placement platform 74 on the side closer to the plate to be plated 10, and the side away from the plate to be plated 10 is located on the limiting surface 711. Specifically, in this embodiment, refer to Figure 38 The placement platform 74 is made of square steel and is set parallel to the swing arm 712 on the inner side of the swing arm 712.

[0144] Optionally, the vertical continuous electroless plating line also includes at least one vibration motor 8, which is mounted on the electroless plating tank 11 via a mounting base.

[0145] Optionally, multiple vibration motors 8 are provided, spaced apart along the length of the placement table 74 on both sides of the chemical plating tank 11. For details, refer to... Figure 39 and 40 In this embodiment, there are six vibration motors 8, with three on each side equally spaced on the two long sides of the chemical plating tank 11.

[0146] The chemical plating tank 11 is equipped with a vibration motor 8, which can vibrate out the air bubbles on the surface of the workpiece to be plated, so that the chemical solution in the chemical plating tank 11 and the workpiece to be plated can be in full contact, thus ensuring the quality of chemical plating.

[0147] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A vertical continuous electroless plating line, characterized in that, include: Chemical plating station (1) is provided with multiple stations; A circulating drive mechanism (2) is located above the electroless plating station (1), and the power output direction of the circulating drive mechanism (2) is arranged along the arrangement direction of the electroless plating station (1). The mounting bracket (3) is provided in multiple ways, and the multiple mounting brackets (3) are arranged side by side on the circulating drive mechanism (2), and are adapted to pass through each chemical plating station (1) in sequence under the drive of the circulating drive mechanism (2); the mounting bracket (3) is adapted to clamp the plate to be plated (10) so that the plate surface of the plate to be plated (10) is perpendicular to its own direction of travel; The lifting drive mechanism (5) is connected to the hanger assembly (3) to drive the hanger assembly (3) to descend to the plate to be plated (10) and enter the chemical plating station (1) and to rise to the plate to be plated (10) and leave the chemical plating station (1). The electroless plating station (1) is provided with an electroless plating tank (11), and at least one of the electroless plating tanks (11) is provided with a transfer device (7) suitable for transferring the hanger assembly (3). The transfer device (7) includes a swing mechanism (71) and a reciprocating drive mechanism (72). The swing mechanism (71) includes: Longitudinal limiting surface (711); A swing arm (712) is disposed above the limiting surface (711); Multiple push rods (713) are provided and spaced apart on the swing arm (712); the push rods (713) are eccentrically rotatably mounted on the swing arm (712), and the distance from the end of the push rod (713) on the side where the center of gravity is located to the center of rotation is greater than the vertical distance from the center of rotation of the push rod (713) to the limiting surface (711), so that the side of the push rod (713) on the side where the center of gravity is located naturally falls to the end and abuts against the limiting surface (711). The push rod (713) and the forward direction of the swing arm (712) form an acute angle, which constitutes an anti-backward structure; The reciprocating drive mechanism (72) is connected to the swing arm (712) and is adapted to drive the swing arm (712) to perform horizontal reciprocating swing. The end face of the push rod (713) on the side where the center of gravity is located is set as an inclined surface suitable for fitting with the limiting surface (711); The reciprocating drive mechanism (72) includes a cam transmission mechanism (721) or a drive cylinder.

2. The vertical continuous electroless plating line according to claim 1, characterized in that, The mounting assembly (3) includes a detachably connected lifting assembly (31) and a clamping assembly (32).

3. The vertical continuous electroless plating line according to claim 2, characterized in that, The hoisting assembly (31) and the clamping assembly (32) are detachably connected by a snap-fit ​​structure (33).

4. The vertical continuous electroless plating line according to claim 2 or 3, characterized in that, The hoisting assembly (31) includes a horizontally arranged boom (311) that is perpendicular to the traveling direction of the plate to be plated (10); the clamping assembly (32) is connected to the boom (311).

5. The vertical continuous electroless plating line according to claim 4, characterized in that, The boom (311) is provided with a hook-on part (3122), and the clamping assembly (32) is provided with a joint part (3231) that cooperates with the hook-on part (3122). The joint part (3231) is detachably hooked onto the hook-on part (3122).

6. The vertical continuous electroless plating line according to claim 2 or 3, characterized in that, The clamping assembly (32) includes a clamping frame (322), on which at least two clamps (321) are arranged side by side and spaced apart, and the opening and closing direction of the clamps (321) is arranged along the traveling direction of the plate to be plated (10).

7. The vertical continuous electroless plating line according to claim 6, characterized in that, The clamping frame (322) has an ear plate (324) protruding outward, and the ear plate (324) has a force-bearing surface parallel to the plate surface of the plate to be plated (10).

8. The vertical continuous electroless plating line according to claim 2 or 3, characterized in that, The hanging assembly (3) includes a first guide mechanism (4), which includes a vertically arranged first guide post (41) and a first roller assembly (42) slidably disposed on the first guide post (41). The hoisting assembly (31) is connected to the first roller assembly (42).

9. The vertical continuous electroless plating line according to claim 8, characterized in that, The first guide column (41) has limit blocks (411) at both ends for limiting the lifting stroke of the hoisting assembly (31).

10. The vertical continuous electroless plating line according to claim 8, characterized in that, The system includes a second guide mechanism (6), which includes a vertically arranged second guide post (61) and a second roller assembly (62) slidably disposed on the second guide post (61). The lifting drive mechanism (5) is connected to the second roller assembly (62).

11. The vertical continuous electroless plating line according to claim 1, characterized in that, The cam transmission mechanism (721) includes a cam (7211) and a limiting plate (7212); the limiting plate (7212) is connected to the swing arm (712), and the limiting plate (7212) is provided with an annular limiting groove (72121) that cooperates with the cam (7211). The limiting groove (72121) is elongated, and the cam (7211) is slidably disposed in the limiting groove (72121).

12. The vertical continuous electroless plating line according to claim 1, characterized in that, Two swing mechanisms (71) are provided and are arranged side by side on both sides of the chemical plating tank (11). The two swing arms (712) are connected by a synchronous transmission assembly (7213).

13. The vertical continuous electroless plating line according to claim 1, characterized in that, The chemical plating tank (11) is provided with a placement platform (74) suitable for carrying the hanger assembly (3). The placement platform (74) is a longitudinal structure. There are two placement platforms (74), which are symmetrically arranged on the two inner side walls of the chemical plating tank (11). The swing arm (712) is arranged along the length direction of the placement platform (74).

14. The vertical continuous electroless plating line according to claim 1, characterized in that, The transfer device (7) further includes a third guide mechanism (73), and the swing arm (712) is slidably connected to the third guide mechanism (73).

15. The vertical continuous electroless plating line according to claim 14, characterized in that, The third guide mechanism (73) includes a third roller assembly (731), which includes at least one third roller assembly (731). The third roller assembly (731) includes two rollers arranged opposite each other, with a sliding gap between the circumferential surfaces of the two rollers. The swing arm (712) is slidably disposed in the sliding gap.

16. The vertical continuous electroless plating line according to claim 1, characterized in that, At least one of the chemical plating tanks (11) is provided with a vibration motor (8), which is mounted on the chemical plating tank (11) via a mounting base.

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