Silver deposition surface treatment device

Abstract

The utility model relates to a silver deposition surface treatment device which comprises a silver deposition pool, a suspension is fixed above the silver deposition pool through a stand column, a mounting plate is mounted below the suspension through a first driving mechanism arranged on the lower surface of the suspension, the first driving mechanism is used for driving the mounting plate to horizontally move left and right, and second driving mechanisms are arranged on the two sides of the lower surface of the mounting plate respectively. Containing frames are arranged below the second driving mechanisms on the two sides correspondingly, the second driving mechanisms are used for driving the containing frames on the same side to move up and down, and leaking holes penetrating through the inside and the outside are evenly distributed in the four sides and the bottom of each containing frame correspondingly. The two containing frames are arranged, the positions of the two containing frames can be switched back and forth, and when one containing frame is placed in the silver deposition tank for silver deposition, the other containing frame is located outside the silver deposition tank, so that feeding and discharging are facilitated, switching type operation of the two containing frames is achieved, and the working efficiency is improved. Intermittent time consumption of silver immersion treatment of two batches of circuit boards is greatly reduced, and the silver immersion treatment efficiency of the circuit boards is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silver immersion processing of circuit boards, in particular to a silver immersion surface treatment device. Background Art

[0002] The silver immersion treatment on the surface of a circuit board is a common electroplating process, which is used to deposit a layer of silver on the surface of the circuit board to improve its electrical conductivity and corrosion resistance. In the chemical reduction method, the circuit board is immersed in a chemical solution containing silver ions, and through a chemical reaction, the silver ions are reduced into a solid silver layer to ensure that a uniform, dense and well-adhered silver layer is obtained on the circuit board.

[0003] The existing silver immersion treatment equipment usually only has a holding frame for holding circuit boards. After the silver immersion treatment of the previous batch of circuit boards is completed, the holding frame needs to be taken out of the silver immersion tank, the circuit boards with good silver immersion are unloaded, and then the next batch of circuit boards are loaded into the holding frame. Subsequently, the holding frame and the circuit boards are placed back into the silver immersion tank again. This results in a long intermittent time for the silver immersion treatment of two batches, making it difficult to ensure the continuity of processing and greatly reducing the silver immersion treatment efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an efficient silver immersion surface treatment device, which effectively solves the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions.

[0006] A silver immersion surface treatment device includes a silver immersion tank. Above the silver immersion tank, a suspension is fixed by columns. Below the suspension, a mounting plate is installed through a first driving mechanism provided on its lower surface. The first driving mechanism is used to drive the mounting plate to move left and right. Along the left-right translation direction, on both sides of the lower surface of the mounting plate, second driving mechanisms are respectively provided. Below the second driving mechanisms on both sides, holding frames are respectively provided. The second driving mechanisms are used to drive the holding frames on the same side to move up and down. The four sides and the bottom of the holding frame are respectively evenly distributed with through holes that penetrate inside and outside.

[0007] Thus, by setting two holding frames and the positions of the two holding frames can be switched back and forth. While one holding frame is placed in the silver immersion tank for silver immersion, the other holding frame is located outside the silver immersion tank, which is convenient for loading and unloading. The switching operation of the two holding frames is realized, greatly reducing the intermittent time for the silver immersion treatment of two batches of circuit boards and improving the silver immersion treatment efficiency of the circuit boards. Along the left-right translation direction, the workstations for loading and unloading are located on both outer sides of the silver immersion tank. Each holding frame is vertically suspended below the mounting plate through a second driving mechanism, with a large operating space, which is convenient for loading and unloading, and the workstation switching speed is fast and efficient. The entire silver immersion surface treatment device is structurally compact and efficient.

[0008] Furthermore, the first driving mechanism includes a guide seat, a threaded rod, a driving motor and a nut seat. The guide seat is fixed on the surface of the suspension. A guide groove is provided on the lower surface of the guide seat. The threaded rod is rotatably installed in the guide groove. The driving motor is fixed on one side of the guide seat, and the output shaft of the driving motor is fixedly connected to one end of the threaded rod. The nut seat is limitedly slidably installed in the guide groove, and the thread is matched to be sleeved on the threaded rod. The mounting plate is fixed to the lower end of the nut seat.

[0009] The driving motor drives the threaded rod to rotate in the guide groove. The rotating threaded rod can drive the nut seat to move left and right in the guide groove, thereby driving the mounting plate to move left and right, providing a stable drive for the position switching of the two containing frames.

[0010] Furthermore, the second driving mechanism includes a fixing seat, a hydraulic cylinder and a connecting arm, the hydraulic cylinder is vertically fixed to the lower surface of the mounting plate through the fixing seat, the connecting arm is fixedly connected to the end of the telescopic rod of the hydraulic cylinder, and the containing frame is correspondingly fixed to the connecting arm.

[0011] The hydraulic cylinder extends and, under the connection of the connecting arm, can drive the containing frame to move downward into the silver sinking pool, facilitating the silver sinking process. The hydraulic cylinder retracts and can drive the containing frame upward and out of the silver sinking pool. In conjunction with the first driving mechanism, the containing frame can be moved to one side of the silver sinking pool, facilitating loading and unloading, and providing a stable drive for the lifting of the containing frame.

[0012] Furthermore, the connecting arm has an inverted U-shaped structural layout, the top of the connecting arm is fixed to the end of the telescopic rod of the hydraulic cylinder, and the bottom ends on both sides of the connecting arm are respectively fixed to the two sides of the top of the containing frame.

[0013] The connecting arm has an inverted U-shaped structure, which is symmetrical with the connection point of the containing frame, thus ensuring the stability of the containing frame. In addition, the connecting arm is arched above the containing frame to make room for easy placement of circuit boards.

[0014] Furthermore, the two sides of the silver sinking pool are respectively provided with collection tanks with openings facing upwards, and the two collection tanks are provided with reflux channels communicating with the interior of the silver sinking pool on the sides close to the silver sinking pool.

[0015] When the containing frame is removed from the silver sinking pool and moved to one side of the silver sinking pool, the solution leaked through the leak hole can fall into the collection tank to achieve the collection effect, and the solution collected in the collection tank can be returned to the silver sinking pool through the reflux channel to achieve solution recovery and avoid waste caused by solution exposure.

[0016] Furthermore, guide rods are fixedly installed on both sides of the guide seat on the lower surface of the suspension through brackets, and sliding blocks are slidably sleeved on the two guide rods, and the lower ends of the sliding blocks are fixedly connected to the upper surface of the mounting plate.

[0017] Through the sliding fit between the sliding block and the guide rod, a limiting and guiding effect is provided for the mounting plate, which not only ensures that the sliding adjustment of the mounting plate is smooth and stable enough, but also provides stable support for the mounting plate, ensuring the overall firmness of the mounting plate and the structure below it.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows.

[0019] 1. By providing two storage frames in the present utility model, and the positions of the two storage frames can be switched back and forth. While one storage frame is placed in the immersion silver bath for immersion silver, the other storage frame is located outside the immersion silver bath, which is convenient for loading and unloading, realizes the switching operation of the two storage frames, greatly reduces the intermittent time-consuming between two batches of circuit board immersion silver treatments, and improves the efficiency of circuit board immersion silver treatment.

[0020] 2. When the storage frame is taken out of the immersion silver bath and moved to one side of the immersion silver bath in the present utility model, the solution drained through the leakage holes can fall into the collection tank to achieve the collection effect, and the solution collected in the collection tank can be refluxed to the immersion silver bath through the reflux channel to achieve the recovery of the solution, avoiding waste caused by the exposure of the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic cross-sectional structure diagram of the present utility model;

[0023] Figure 3 is one of the partial structure schematic diagrams of the lower surface of the suspension in the present utility model;

[0024] Figure 4 is the second of the partial structure schematic diagrams of the lower surface of the suspension in the present utility model.

[0025] In the figure: 1, immersion silver bath; 11, column; 2, suspension; 3, mounting plate; 31, bracket; 32, guide rod; 33, sliding block; 4, first driving mechanism; 41, guide seat; 411, guide groove; 42, threaded rod; 43, driving motor; 44, nut seat; 6, second driving mechanism; 61, fixed seat; 62, hydraulic cylinder; 63, connecting arm; 7, storage frame; 71, leakage hole; 8, collection tank; 81, reflux channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-4 , a silver immersion surface treatment device provided by the present invention includes a silver immersion tank 1. Above the silver immersion tank 1, a suspension 2 is fixed through a column 11. Below the suspension 2, a mounting plate 3 is installed through a first driving mechanism 4 provided on its lower surface. The first driving mechanism 4 is used to drive the mounting plate 3 to move left and right. Along the left and right translation direction, second driving mechanisms 6 are respectively provided on both sides of the lower surface of the mounting plate 3. Below the second driving mechanisms 6 on both sides, there are respectively placed holding frames 7. The second driving mechanism 6 is used to drive the holding frame 7 on the same side to move up and down. The four sides and the bottom of the holding frame 7 are respectively evenly distributed with through holes 71 that penetrate inside and outside.

[0028] When using this device to perform silver immersion treatment on the surface of a circuit board, the first driving mechanism 4 can drive the mounting plate 3 to move left and right, thereby driving the two holding frames 7 to move and respectively align with the silver immersion tank 1, realizing the position switching of the two holding frames 7. By the second driving mechanism 6 working to drive the holding frame 7 aligned with the silver immersion tank 1 to move down, the holding frame 7 can be sent into the silver immersion tank 1 for silver immersion processing. By setting two holding frames 7 in this device and the positions of the two holding frames 7 can be switched back and forth. While one holding frame 7 is placed in the silver immersion tank 1 for silver immersion, the other holding frame 7 is located outside the silver immersion tank 1, which is convenient for loading and unloading, realizing the switching operation of the two holding frames 7, and greatly reducing the intermittent time-consuming between two batches of circuit board silver immersion treatments.

[0029] Specifically, the first driving mechanism 4 includes a guide seat 41, a threaded rod 42, a driving motor 43, and a nut seat 44. The guide seat 41 is fixed on the surface of the suspension 2. A guide groove 411 is provided on the lower surface of the guide seat 41. The threaded rod 42 is rotatably installed in the guide groove 411. The driving motor 43 is fixed on one side of the guide seat 41, and the output shaft of the driving motor 43 is fixedly connected to one end of the threaded rod 42. The nut seat 44 is slidably installed in the guide groove 411 with a limit and is threadedly sleeved on the threaded rod 42. The mounting plate 3 is fixed on the lower end of the nut seat 44. By the driving motor 43 working to drive the threaded rod 42 to rotate in the guide groove 411, the rotating threaded rod 42 can threadedly drive the nut seat 44 to move left and right in the guide groove 411, and then drive the mounting plate 3 to move left and right, providing a stable drive for the position switching of the two holding frames 7.

[0030] Specifically, the second driving mechanism 6 includes a fixed seat 61, a hydraulic cylinder 62 and a connecting arm 63. The hydraulic cylinder 62 is vertically fixed to the lower surface of the mounting plate 3 through the fixed seat 61. The connecting arm 63 is fixedly connected to the end of the telescopic rod of the hydraulic cylinder 62. The holding frame 7 is correspondingly fixed to the connecting arm 63. Through the extension of the hydraulic cylinder 62, under the connection of the connecting arm 63, the holding frame 7 can be driven to move downward into the silver sinking pool 1 to facilitate the silver sinking process. Through the retraction of the hydraulic cylinder 62, the holding frame 7 can be driven to move upward and out of the silver sinking pool 1. In cooperation with the first driving mechanism 4, the holding frame 7 can be moved to one side of the silver sinking pool 1, thereby facilitating loading and unloading, and providing a stable drive for the lifting and lowering of the holding frame 7.

[0031] Specifically, the connecting arm 63 has an inverted U-shaped structure. The top of the connecting arm 63 is fixed to the end of the telescopic rod of the hydraulic cylinder 62. The bottom ends of the connecting arm 63 are respectively fixed to the top sides of the containing frame 7. The connecting arm 63 has an inverted U-shaped structure, and the connection points with the containing frame 7 are symmetrical to each other, thereby ensuring the stability of the containing frame 7. In addition, the connecting arm 63 is arched above the containing frame 7 to make room for convenient placement of circuit boards.

[0032] Specifically, the two sides of the silver sinking pool 1 are respectively arranged with collection tanks 8 with openings facing upwards, and the two collection tanks 8 are provided with reflux channels 81 communicating with the inside of the silver sinking pool 1 near the sides of the silver sinking pool 1. When the containing frame 7 is removed from the silver sinking pool 1 and moved to one side of the silver sinking pool 1, the solution leaked through the leakage hole 71 can fall into the collection tank 8 to achieve the collection effect, and the solution collected in the collection tank 8 can be returned to the silver sinking pool 1 through the reflux channel 81 to achieve solution recovery and avoid waste caused by exposure of the solution.

[0033] Specifically, the lower surface of the suspension 2 is located on both sides of the guide seat 41 and fixedly installed with guide rods 32 through brackets 31. Sliding blocks 33 are slidably mounted on the two guide rods 32. The lower ends of the sliding blocks 33 are fixedly connected to the upper surface of the mounting plate 3. The sliding cooperation between the sliding blocks 33 and the guide rods 32 provides a limiting guiding effect for the mounting plate 3, which not only ensures that the sliding adjustment of the mounting plate 3 is sufficiently smooth and stable, but also provides stable support for the mounting plate 3, ensuring the overall firmness of the mounting plate 3 and the structure below it.

[0034] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A silver immersion surface treatment device, comprising a silver immersion pool (1), a suspension (2) being fixed above the silver immersion pool (1) via a column (11), characterized in that: A mounting plate (3) is mounted below the suspension (2) via a first driving mechanism (4) disposed on the lower surface thereof, wherein the first driving mechanism (4) is used to drive the mounting plate (3) to move horizontally; Along the left-right translation direction, second driving mechanisms (6) are respectively provided on both sides of the lower surface of the mounting plate (3), and a containing frame (7) is respectively provided below the second driving mechanisms (6) on both sides, and the second driving mechanisms (6) are used to drive the containing frame (7) on the same side to move up and down; The four sides and the bottom of the containing frame (7) are evenly distributed with leakage holes (71) that penetrate inside and outside.

2. The silver immersion surface treatment device according to claim 1, characterized in that: The first driving mechanism (4) comprises a guide seat (41), a threaded rod (42), a driving motor (43) and a nut seat (44); The guide seat (41) is fixed on the surface of the suspension (2), and a guide groove (411) is provided on the lower surface of the guide seat (41); The threaded rod (42) is rotatably mounted in the guide groove (411), the drive motor (43) is fixed to one side of the guide seat (41), and the output shaft of the drive motor (43) is fixedly connected to one end of the threaded rod (42); The nut seat (44) is slidably mounted in the guide groove (411) in a limited position, and is threadably mounted on the threaded rod (42); The mounting plate (3) is fixed on the lower end of the nut seat (44).

3. The silver immersion surface treatment device according to claim 1, characterized in that: The second driving mechanism (6) comprises a fixing seat (61), a hydraulic cylinder (62) and a connecting arm (63); The hydraulic cylinder (62) is vertically fixed to the lower surface of the mounting plate (3) via the fixing seat (61), and the connecting arm (63) is fixedly connected to the end of the telescopic rod of the hydraulic cylinder (62); The containing frame (7) is correspondingly fixed on the connecting arm (63).

4. The silver immersion surface treatment device according to claim 3, characterized in that: The connecting arm (63) has an inverted U-shaped structural layout, and the top of the connecting arm (63) is fixed to the end of the telescopic rod of the hydraulic cylinder (62); The bottom ends of both sides of the connecting arm (63) are respectively fixed to the top sides of the containing frame (7).

5. The silver immersion surface treatment device according to claim 1, characterized in that: Collecting grooves (8) with openings facing upwards are arranged on both sides of the silver precipitation pool (1), and reflux channels (81) communicating with the interior of the silver precipitation pool (1) are provided on the sides of the two collecting grooves (8) close to the silver precipitation pool (1).

6. The silver immersion surface treatment device according to claim 2, characterized in that: The lower surface of the suspension (2) is located on both sides of the guide seat (41) and is fixedly mounted with guide rods (32) through brackets (31), and sliding blocks (33) are slidably sleeved on the two guide rods (32); The lower ends of the sliding blocks (33) are fixedly connected to the upper surface of the mounting plate (3).

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