Post-processing drying device for nickel-gold immersion circuit board processing
By designing a top drying conveyor line and rotating components for the post-processing drying device of nickel-gold PCBs, the problems of incomplete PCB drying and bottom obstruction were solved, achieving efficient and uniform drying results and space saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-27
AI Technical Summary
In the current process of processing nickel-gold immersion circuit boards, the drying is not thorough and the bottom is easily blocked, resulting in poor drying effect.
A drying device was designed, which includes a top drying conveyor line, a suspension device, and a rotating component. The circuit board is suspended by the suspension device and the circuit board is rotated and dried by the rotating component, ensuring uniform heating.
This method achieves uniform drying of nickel-gold immersion circuit boards, improving drying efficiency and quality while saving space.
Smart Images
Figure CN224050929U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to nickel immersion gold circuit board production technical field, concretely to a kind of post-processing drying device for nickel immersion gold circuit board processing. BACKGROUND
[0002] Nickel immersion gold circuit board is a kind of PCB board which generates nickel gold plating layer on copper surface by chemical deposition method.
[0003] Nickel immersion gold process first self-catalytic reaction deposition about 120-200 μ thick nickel layer on copper surface, then gold is replaced from solution to nickel surface by chemical replacement reaction in gold jar, and gold layer completely covers nickel layer, and its thickness is generally controlled at about 1-3 μ. By time etc. Control its thickness upper limit can be as high as 10 μ.
[0004] Nickel immersion gold circuit board is bright in color, and color is good, and appearance is good-looking;The crystal structure formed is more easily welded than other surface treatments, can have better performance, and quality is guaranteed;Because there is only nickel gold on pad, it will not affect signal, because the transmission of signal in skin effect is in copper layer;The metal property of gold is relatively stable, and the crystal structure is more dense, and oxidation reaction is not prone to occur.
[0005] Nickel immersion gold circuit board processing includes the following steps: (1) oil removal: product is placed in acidic oil remover, and oil stain and fingerprint on board surface are removed;(2), micro-etching: product is placed in micro-etching liquid, and copper surface is slightly etched;(3), activation: product is placed in palladium activation liquid, and a layer of activated palladium is deposited on product surface, to act as subsequent catalytic medium of chemical nickel;(4), chemical nickel: product is placed in nickel plating solution, and a layer of nickel is deposited on copper surface;(5), micro-etching: product is placed in acid solution, and nickel surface is slightly etched;(6), activation: product is placed in palladium activation liquid, and a layer of activated palladium is deposited on product surface, to act as subsequent catalytic medium of chemical nickel palladium alloy;(7), chemical nickel palladium alloy plating: product is placed in nickel palladium alloy plating solution, and a layer of nickel palladium alloy plating layer is deposited on nickel surface;(8), washing and drying: residual process water on board surface is cleaned, and dried.
[0006] At present, the post-processing drying of nickel immersion gold circuit board processing is to place nickel immersion gold circuit board after cleaning on conveying belt, and convey into drying equipment through conveying belt for drying, and the bottom of nickel immersion gold circuit board is easily shielded in the current conveying drying process, and nickel immersion gold circuit board does not rotate during drying process, so that the drying effect is low and drying is not thorough. UTILITY MODEL CONTENTS
[0007] The utility model aims at providing a kind of post-processing drying device for nickel immersion gold circuit board processing to solve the problems raised in the above background.
[0008] To achieve the above object, the utility model provides the following technical scheme:
[0009] A kind of post-processing drying device for processing nickel-gold immersion circuit board, including nickel-gold immersion circuit board, top drying conveying line, for the drying suspension of nickel-gold immersion circuit board and rotating component, the top drying conveying line includes conveying cross frame and drive assembly, the top of the conveying cross frame is provided with sliding slot in parallel, the sliding block is slidably connected in the sliding slot, the fixed frame is sleeved on the outside of the conveying cross frame, the top inner wall of the fixed frame is connected with the top of the sliding block, the fixed plate is connected to the bottom of the fixed frame, and the suspension is located at the bottom of the fixed plate.
[0010] As a preferred scheme of the utility model, the drive assembly includes drive rack, drive gear, shaft and motor, the drive rack is parallel to the inside of the fixed frame and the outer wall below the conveying cross frame, the motor is located at the bottom of one side of the fixed plate, the drive gear is connected with the drive rack, the top of the shaft is connected with the bottom of the drive gear, and the bottom of the shaft extends through the fixed plate and is connected with the motor output below.
[0011] As a preferred scheme of the utility model, the suspension includes a hanging disc, the hanging disc is located at the bottom of the fixed plate, the hanging rods are evenly arranged on the outer circumferential wall close to the bottom of the hanging disc, and the hanging rods are arranged in L-shaped structure.
[0012] As a preferred scheme of the utility model, the rotating component includes driving wheel, driven wheel, drive belt and connecting shaft, the bearing is sleeved on the outer circumferential wall of the middle part of the connecting shaft, the bearing is located at the top of the fixed plate, the bottom of the connecting shaft penetrates through the fixed plate and is connected with the top of the hanging disc below, the driven wheel is sleeved on the outer circumferential wall of the top of the connecting shaft, the driving wheel is sleeved on the outer circumferential wall of the shaft on the top of the fixed plate, and the driving wheel and the driven wheel are connected through the drive belt.
[0013] As a preferred scheme of the utility model, a plurality of nickel-gold immersion circuit boards are hung on the hanging rods through the through holes thereon.
[0014] As a preferred scheme of the utility model, the motor is electrically connected with the drying equipment controller through wires.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] In view of the problems in the background art, the post-processing drying device for processing nickel-gold immersion circuit board optimizes the design of conveying belt, increases the suspension and rotating component, effectively solves the problems that the bottom of the nickel-gold immersion circuit board is easily blocked and not completely dried during drying.
[0017] High efficiency drying, through the design of the top drying conveying line, ensures the drying effect of the nickel immersion gold circuit board.
[0018] Save space, the top conveying occupies small area, and the nickel immersion gold circuit board is conveniently hung.
[0019] Flexible conveying, through the cooperation of the sliding block and the driving gear, flexible displacement conveying of the fixed frame and the hanging device is realized.
[0020] Uniform drying, the design of the rotating assembly enables the nickel immersion gold circuit board to be uniformly heated during rotation, improving the drying efficiency and quality.
[0021] When the motor starts, the shaft drives the driving wheel to rotate, and the power is transmitted to the driven wheel through the driving belt, so as to drive the connecting shaft to rotate, and the rotation of the connecting shaft will further drive the hanging disc, the hanging rod thereon and the suspended nickel immersion gold circuit board to rotate together, so that the suspended nickel immersion gold circuit board can uniformly receive the hot air of the drying equipment during rotation, thereby realizing uniform drying; the hanging disc and the hanging rod are used for hanging and supporting the nickel immersion gold circuit board, so as to ensure the stability thereof during rotation, the driving wheel, the driven wheel and the driving belt constitute a transmission system, the power of the motor is transmitted to the hanging disc, the connecting shaft connects the hanging disc and the transmission system, rotation is realized, the motor provides a power source, and the rotation speed of the whole system is controlled, so that the nickel immersion gold circuit board can be uniformly heated during drying, and the drying efficiency and quality are improved.
[0022] The utility model will be explained in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is the axonometric drawing of the utility model;
[0024] Figure 2 It is the top drying conveying line structure schematic view of the utility model;
[0025] Figure 3 It is the rotating assembly structure schematic view of the utility model.
[0026] Figure 4 It is the utility model Figure 2 It is the enlarged view of A area in the utility model.
[0027] In the figure: 1, top drying conveying line; 11, conveying cross frame; 111, sliding groove; 112, sliding block; 12, driving assembly; 121, driving rack; 122, driving gear; 123, shaft rod; 124, motor; 13, fixed frame; 131, fixed plate; 2, nickel immersion gold circuit board; 3, suspension device; 31, suspension disc; 32, hanging rod; 4, rotating assembly; 41, driving wheel; 42, driven wheel; 43, driving belt; 44, connecting shaft. DETAILED DESCRIPTION
[0028] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, wherein several embodiments of the present application are given, but the present application can be realized in different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided to make the disclosed content of the present application more thorough and comprehensive. EMBODIMENT
[0029] Please refer to Figures 1-4 The present application provides a technical solution: in order to achieve the above purpose, the present application provides the following technical solution: a post-treatment drying device for nickel immersion gold circuit board processing, comprising a nickel immersion gold circuit board 2, a top drying conveying line 1, a suspension device 3 for drying and suspending the nickel immersion gold circuit board 2, and a rotating assembly 4, the top drying conveying line 1 comprises a conveying cross frame 11 and a driving assembly 12, the top of the conveying cross frame 11 is provided with a sliding groove 111, the sliding groove 111 is internally connected with a sliding block 112, the conveying cross frame 11 is externally provided with a fixed frame 13, the top inner wall of the fixed frame 13 is connected with the top of the sliding block 112, the bottom of the fixed frame 13 is provided with a fixed plate 131, and the suspension device 3 is located at the bottom of the fixed plate 131; the driving assembly 12 comprises a driving rack 121, a driving gear 122, a shaft rod 123 and a motor 124, the driving rack 121 is parallelly located below the outer wall of the conveying cross frame 11 in the fixed frame 13, the motor 124 is located at the bottom of one side of the fixed plate 131, the driving gear 122 is connected with the driving rack 121 in meshing, the top of the shaft rod 123 is connected with the bottom of the driving gear 122, and the bottom of the shaft rod 123 penetrates through the fixed plate 131 and extends below to be connected with the output end of the motor 124.
[0030] It should be noted that, in the present embodiment, the top drying conveying line 1 is provided to dry and convey the nickel immersion gold circuit board 2, so as to ensure the drying effect, and the top conveying occupies a small area, facilitating the suspension of the nickel immersion gold circuit board 2;
[0031] The top of the conveying cross frame 11 is provided with a sliding groove 111 parallel to the top, used for slidingly connecting a sliding block 112; the driving assembly 12 comprises a driving rack 121, a driving gear 122, a shaft 123 and a motor 124; the driving rack 121 is parallelly arranged inside the fixed frame 13 and on the outer wall below the conveying cross frame 11; the motor 124 is arranged at the bottom of one side of the fixed plate 131; the driving gear 122 is connected with the driving rack 121 in a meshing manner; the top of the shaft 123 is connected with the bottom of the driving gear 122; the bottom of the shaft 123 penetrates through the fixed plate 131 and extends below the fixed plate 131 to be connected with the output end of the motor 124; the fixed frame 13 is slidingly sleeved on the conveying cross frame 11 and connected with the sliding block 112 inside the sliding groove 111 of the conveying cross frame 11; the top inner wall of the fixed frame 13 is connected with the top of the sliding block 112; the bottom is provided with the fixed plate 131;
[0032] The fixed frame 13 is slidingly sleeved on the conveying cross frame 11 and connected with the sliding block 112 inside the sliding groove 111 of the conveying cross frame 11; when the motor 124 rotates, the driving gear 122 on the output end of the motor 124 is connected with the driving rack 121 in a meshing manner; the driving gear 122 slides on the driving rack 121 while driving the fixed frame 13 to slide on the conveying cross frame 11, which further drives the suspension device 3 to displace and convey;
[0033] When the motor 124 is started, the output end of the motor 124 drives the driving gear 122 to rotate; since the driving gear 122 is connected with the driving rack 121 in a meshing manner, the driving gear 122 slides on the driving rack 121 while driving the fixed frame 13 to slide on the conveying cross frame 11; this sliding action further drives the suspension device 3 to displace and convey, so as to realize the drying and conveying of the nickel-plated circuit board 2;
[0034] Meanwhile, the motor 124 in the rotating assembly 4 is also electrically connected with the drying equipment controller through wires to control the rotating speed of the whole system; when the motor 124 is started, the shaft 123 drives the driving wheel 41 to rotate; the power is transmitted to the driven wheel 42 through the driving belt 43, so as to drive the connecting shaft 44 to rotate; the rotation of the connecting shaft 44 further drives the suspension disc 31, the suspension rods 32 and the suspended nickel-plated circuit board 2 to rotate together; in this way, the suspended nickel-plated circuit board 2 can uniformly receive the hot air of the drying equipment during the rotation, so as to realize uniform drying.
[0035] Please refer to Figure 2 , 3And 4, the suspension device 3 comprises a suspension disc 31, the suspension disc 31 is located at the bottom of the fixed plate 131, and the bottom of the suspension disc 31 is uniformly provided with suspension rods 32 on the outer circumferential wall close to it, the suspension rods 32 are in L-shaped structure, and the plurality of nickel-plated circuit boards 2 are hung on the suspension rods 32 through the through holes on them; the rotating assembly 4 comprises a driving wheel 41, a driven wheel 42, a driving belt 43 and a connecting shaft 44, a bearing is sleeved on the outer circumferential wall of the middle part of the connecting shaft 44, the bearing is located at the top of the fixed plate 131, the bottom of the connecting shaft 44 penetrates through the fixed plate 131 and is connected to the top of the suspension disc 31 below, the driven wheel 42 is sleeved on the outer circumferential wall of the top of the connecting shaft 44, and the driving wheel 41 is sleeved on the outer circumferential wall of the shaft rod 123 at the top of the fixed plate 131; the driving wheel 41 and the driven wheel 42 are connected through the driving belt 43, and the motor 124 is electrically connected with the drying equipment controller through wires.
[0036] It should be noted that, in the embodiment, the suspension disc 31 is located at the bottom of the fixed plate 131, and the bottom of the suspension disc 31 is uniformly provided with a plurality of L-shaped suspension rods 32 on the outer circumferential wall close to it, and the nickel-plated circuit board 2 is hung on the suspension rod 32 through the through hole on it; through the plurality of suspension rods 32, the nickel-plated circuit board 2 is hung, the drying is prevented from being blocked, and the drying efficiency is ensured.
[0037] The driving wheel 41 is sleeved on the outer circumferential wall of the shaft rod 123 at the top of the fixed plate 131, the driven wheel 42 is sleeved on the outer circumferential wall of the top of the connecting shaft 44, the driving belt 43 connects the driving wheel 41 and the driven wheel 42, so that they can rotate synchronously, a bearing is sleeved on the outer circumferential wall of the middle part of the connecting shaft 44, the bearing is located at the top of the fixed plate 131, the bottom of the connecting shaft 44 penetrates through the fixed plate 131 and is connected to the top of the suspension disc 31 below, and the motor 124 is electrically connected with the drying equipment controller through wires, for driving the rotation of the shaft rod 123 and the driving wheel 41.
[0038] When the motor 124 is started, the shaft rod 123 drives the driving wheel 41 to rotate, and the power is transmitted to the driven wheel 42 through the driving belt 43, so that the connecting shaft 44 is driven to rotate, and the rotation of the connecting shaft 44 further drives the suspension disc 31, the suspension rods 32 on the suspension disc 31 and the suspended nickel-plated circuit board 2 to rotate together, so that the suspended nickel-plated circuit board 2 can uniformly receive the hot air of the drying equipment in the rotating process, thereby realizing uniform drying.
[0039] The hanging disc 31 and the hanging rod 32 are used for hanging and supporting the nickel immersion gold circuit board 2, and ensure stability during rotation; the driving belt 43, the driving gear 41 and the driven gear 42 constitute a transmission system, and power of the motor is transmitted to the hanging disc 31; the connecting shaft 44 connects the hanging disc 31 and the transmission system, and realizes rotation; the motor 124 provides a power source and controls rotation speed of the whole system, so that the nickel immersion gold circuit board 2 can be uniformly heated during drying, and drying efficiency and quality are improved.
[0040] The utility model discloses a work flow:
[0041] When the motor 124 is started, the output end drives the driving gear 122 to rotate, the driving gear 122 is connected with the driving rack 121 in meshing, the driving gear 122 slides on the driving rack 121 and drives the fixed frame 13 to slide on the conveying cross frame 11, the sliding action further drives the hanging device 3 to displace and convey, so that the nickel immersion gold circuit board 2 is dried and conveyed.
[0042] Meanwhile, the motor 124 in the rotating assembly 4 is also electrically connected with the drying equipment controller through wires, and rotation speed of the whole system is controlled, when the motor 124 is started, the shaft 123 drives the driving gear 41 to rotate, power is transmitted to the driven gear 42 through the driving belt 43, so that the connecting shaft 44 is driven to rotate, and the connecting shaft 44 further drives the hanging disc 31, the hanging rod 32 and the nickel immersion gold circuit board 2 to rotate, so that the nickel immersion gold circuit board 2 can be uniformly heated by hot air of the drying equipment during rotation, and uniform drying is realized.
[0043] The utility model has been described exemplarily in the above-mentioned mode in combination with the drawings, and obviously, the utility model is not limited to the above-mentioned mode in practical implementation, as long as the method concept and the technical scheme of the utility model are adopted to carry out this non-essential improvement, or the concept and the technical scheme of the utility model are directly applied to other occasions without improvement, and all fall within the protection scope of the utility model.
Claims
1. A post-treatment drying device for processing a nickel-gold immersion circuit board, comprising a nickel-gold immersion circuit board (2), a top drying conveying line (1), a hanging device (3) for drying and hanging the nickel-gold immersion circuit board (2), and a rotating assembly (4), characterized in that: The top drying conveying line (1) comprises a conveying cross frame (11) and a driving assembly (12), the conveying cross frame (11) is provided with a sliding groove (111) on the top in parallel, the sliding groove (111) is internally connected with a sliding block (112) in sliding mode, the conveying cross frame (11) is externally sleeved with a fixing frame (13), the top inner wall of the fixing frame (13) is connected with the top of the sliding block (112), and the bottom of the fixing frame (13) is connected with a fixing plate (131), and the hanging device (3) is located at the bottom of the fixing plate (131). 2. The post-processing drying device for processing a nickel-gold immersion circuit board according to claim 1, characterized in that: The driving assembly (12) comprises a driving rack (121), a driving gear (122), a shaft (123) and a motor (124), the driving rack (121) is located on the outer wall below the conveying cross frame (11) in the fixing frame (13) in parallel, the motor (124) is located at the bottom of one side of the fixing plate (131), the driving gear (122) is connected with the driving rack (121) in meshing mode, the top of the shaft (123) is connected with the bottom of the driving gear (122), and the bottom of the shaft (123) penetrates through the fixing plate (131) and extends below the fixing plate (131) and is connected with the output end of the motor (124).
3. The post-processing drying device for processing a nickel-gold immersion circuit board according to claim 1, characterized in that: The hanging device (3) comprises a hanging disc (31), the hanging disc (31) is located at the bottom of the fixing plate (131), the hanging rods (32) are uniformly arranged on the bottom of the hanging disc (31) near the outer circumferential wall, and the hanging rods (32) are arranged in L-shaped structure.
4. The post-processing drying device for processing a nickel-gold immersion circuit board according to claim 3, characterized in that: The rotating assembly (4) comprises a driving wheel (41), a driven wheel (42), a driving belt (43) and a connecting shaft (44), the connecting shaft (44) is sleeved with a bearing on the outer circumferential wall of the middle portion, the bearing is located at the top of the fixing plate (131), the bottom of the connecting shaft (44) penetrates through the fixing plate (131) and is connected with the top of the hanging disc (31) below the fixing plate (131), the driven wheel (42) is sleeved on the outer circumferential wall of the top of the connecting shaft (44), the driving wheel (41) is sleeved on the outer circumferential wall of the shaft (123) at the top of the fixing plate (131), and the driving wheel (41) and the driven wheel (42) are connected through the driving belt (43).
5. The post-processing drying device for processing a nickel-gold immersion circuit board according to claim 4, characterized in that: A plurality of the nickel-gold-plated circuit boards (2) are hung on the hanging rods (32) through the through holes.
6. The post-processing drying device for processing a nickel-gold immersion circuit board according to claim 2, characterized in that: The motor (124) is electrically connected with a drying equipment controller through wires.