Single horizontal electroless nickel/immersion gold line of circuit board

Abstract

The invention discloses a single horizontal electroless nickel / immersion gold line of a circuit board. The line comprises a supporting frame, an electroless nickel / immersion gold groove body is installed on the surface of the supporting frame in an embedded mode, and the supporting frame is provided with a circulating conveying belt on the surfaces of the two sides of the electroless nickel / immersion gold groove body through a bearing support in a matched mode. Mounting mechanisms are sequentially and evenly arranged on the surface of the circulating conveying belt, the end of one transmission shaft of the circulating conveying belt is in transmission connection with the output end of a stepping motor through matching of a shaft coupling, and the stepping motor is arranged on the surface of the supporting frame through matching of a connecting piece. According to the invention, loading and unloading are all carried out by adopting an automatic winding and unwinding machine, and in a hanging basket-free single-piece production process, liquid medicine carrying-out is reduced, various chemical liquid medicines and precious metal salts can be saved, and greater economic benefits are brought.

Description

technical field [0001] The invention belongs to the technical field of circuit board processing, and in particular relates to single-sheet horizontal chemical nickel-plated gold wires, single-sheet chemical copper plating, single-sheet chemical tin plating, and single-sheet chemical silver plating. Background technique [0002] At present, the industry's circuit boards (rigid circuit boards and flexible circuit boards) single-sheet nickel-gold (nickel-palladium-gold) process: loading, degreasing hot water washing, double washing, micro-etching, double washing, pickling, double washing, pre-soaking , Activation*2 After double water washing, pickling, double water washing, chemical nickel (28 minutes), water washing, double high water washing, chemical gold (6~8 minutes), recovery, double high water washing, hot water washing and cutting. The commonly used method is the vertical bucket trough gantry type nickel-gold method (attached below), that is, welding to make a metal mat...

AI Technical Summary

Problems solved by technology

[0003] 1. The structure of the gantry-type nickel-gold wire machine is relatively large, and the size of the machine (about L*W*H=32*5*4.5 meters) also needs to be equipped with a washing and drying machine (the production capacity of this machine per hour About 250~260pcs)

[0004] 2. In the actual production of this machine, all the loading and unloading of the machine needs to be done manually by hanging baskets or threading. People (including washing and drying machine workers)

[0005] 3. Because this machine is a gantry crane-type operation mode, the top of each chemical tank of the whole machine is open, so the exhaust gas of the machine cannot be effectively pumped away, which has a great impact on the environment of the production workshop

[0006] 4. During the production of the machine, because there will be water dripping on the ground when the hanging basket is unloaded, the working conditions of the on-site personnel are poor, and even the operators need to wear rubber shoes and waterproof clothing

[0007] 5. Due to the large size of the machine, it is difficult to disassemble the parts during repair and maintenance

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