A jig for bead stringing in the immersion nickel-gold process of printed circuit boards

Abstract

This application provides a bead-stringing fixture for the immersion nickel-gold process of printed circuit boards, belonging to the field of PCB manufacturing technology. The fixture includes an upper comb-tooth insert plate, a first non-elastic high-strength fishing line, a lower comb-tooth insert plate, a second non-elastic high-strength fishing line, and a third non-elastic high-strength fishing line. The frameless design of this fixture increases production capacity and reduces chemical carryover, thus saving costs and improving production efficiency. The use of high-strength materials ensures stability and corrosion resistance, guaranteeing the fixture's stability and durability during long-term operation, reducing maintenance frequency, lowering production costs, and providing a stable and durable structure. The upper and lower comb-tooth insert plates offer maximum capacity improvement, increased efficiency, and cost savings for immersion nickel-gold processes and multi-piece operations on gantry lines, making it highly adaptable.

Description

Technical Field

[0001] This utility model relates to the field of PCB board manufacturing technology, specifically to a jig for bead stringing in the immersion nickel-gold process of printed circuit boards. Background Technology

[0002] In the PCB manufacturing industry, the immersion nickel gold process typically involves Teflon mesh frame hanging baskets, rubber-coated rigid frame hanging baskets, and manual bead stringing. Currently, our factory uses mesh frame and rigid frame hanging baskets, which result in significant gold loss due to the removal of chemicals and wear and tear on the frames. Furthermore, the mesh frame is prone to causing scratches on the copper surface during board insertion, leading to color differences. The hollow isolation columns used for manual bead stringing, which are strung one by one, significantly reduce manual efficiency. Therefore, we need to design a bead stringing fixture that is structurally sound, easy to operate, and can improve efficiency while ensuring quality.

[0003] Defects and shortcomings of existing technology:

[0004] 1. Easily worn: With increased use, the rubber of the hanging basket wears down, causing the material to stick to the metal and resulting in a large amount of liquid being carried out, which increases the cost of the production line and the chance of liquid contamination.

[0005] 2. Poor product appearance: Friction between the product and the frame during insertion often results in color differences on the product surface.

[0006] 3. Low production capacity: Using rigid frames and wire mesh frames, the frame size is included in the tank capacity, and the number of pieces produced is limited by the frame.

[0007] In addition, the original beading process:

[0008] The operator places the product on the storage platform → uses a hollow isolation column → picks up a product → picks up a hollow isolation column → uses non-elastic fishing line to string them together (this process can easily cause scratches) → each product needs to be strung at 4 corners (this step needs to be repeated 4 times) → after stringing, the product is tied to the immersion nickel gold fly bar using Teflon wire or copper wire (there is a risk of falling due to weak binding) → the immersion nickel gold wire body is produced and unloaded → after unloading, it is sent to the cleaning line to remove the fishing line (during this process, hollow isolation columns may get stuck inside the product, causing a risk of scratches) → after all products are removed and cleaned, the operation is completed.

[0009] This invention patent is a beaded fixture specifically designed for the immersion nickel-gold process in printed circuit boards. It effectively reduces chemical carryover, minimizes quality issues, standardizes and simplifies operations, and improves production efficiency. Applicable to the immersion nickel-gold process in the PCB manufacturing industry, it offers significant cost reduction and capacity increase, providing a reliable and efficient solution for related industries. Utility Model Content

[0010] In view of this, the problem to be solved by this utility model is to provide a fixture for bead stringing in the immersion nickel-gold process of printed circuit boards.

[0011] To solve the above technical problems, the technical solution adopted by this utility model is: a jig for beading in the process of immersion nickel gold on printed circuit boards, including an upper comb tooth insert plate, a first non-elastic high-strength fishing line, a lower comb tooth insert plate, a second non-elastic high-strength fishing line and a third non-elastic high-strength fishing line, wherein a PCB board is clamped between the upper comb tooth insert plate and the lower comb tooth insert plate.

[0012] The first non-elastic high-strength fishing line is disposed on the upper comb tooth insert plate, the second non-elastic high-strength fishing line passes through both the upper comb tooth insert plate and the PCB board, and the third non-elastic high-strength fishing line passes through both the lower comb tooth insert plate and the PCB board.

[0013] In one embodiment of this application, the upper comb insert plate has a first through hole, through which the first non-elastic high-strength fishing line passes and is knotted.

[0014] In one embodiment of this application, a second through hole is provided on the upper comb insert plate, through which the second non-elastic high-strength fishing line passes.

[0015] In one embodiment of this application, a third through hole is provided on the lower comb insert plate, and the third non-elastic high-strength fishing line passes through the third through hole.

[0016] In one embodiment of this application, both the upper comb tooth insert and the lower comb tooth insert are made of Teflon.

[0017] In one embodiment of this application, the first non-elastic high-strength fishing line, the second non-elastic high-strength fishing line, and the third non-elastic high-strength fishing line are all made of nylon PA material.

[0018] In one embodiment of this application, the upper comb tooth insert plate is provided with a plurality of first through holes, and the plurality of first through holes are linearly and equidistantly arranged on the upper comb tooth insert plate.

[0019] The advantages and positive effects of this utility model are:

[0020] (1) The hollow isolation column used in conventional beading operations requires manual operation of one bead per piece of product, which is inefficient and can easily cause product scratches due to improper operation. Using this set of fixtures can maximize efficiency and save 1-2 people in mass production. The frameless design can increase production capacity on the original basis and reduce the amount of chemicals carried out, thus saving costs and improving production efficiency.

[0021] (2) High-strength materials are used to ensure stability and corrosion resistance, which guarantees the stability and durability of the fixture during long-term operation, reduces maintenance frequency, lowers production costs, and makes the structure stable and durable.

[0022] (3) The upper comb tooth insert plate and the lower comb tooth insert plate can provide the maximum capacity improvement, labor efficiency improvement and cost saving for the nickel gold immersion process and the multi-piece operation of the gantry line, and are highly applicable. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a bead-stringing fixture for the immersion nickel-gold process of printed circuit boards according to this utility model.

[0025] Figure 2 This is a three-dimensional structural diagram of the upper comb tooth insert plate of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the lower comb tooth insert plate of this utility model;

[0027] Figure 4 This is a diagram showing the relationship between the upper comb tooth insert plate, the lower comb tooth insert plate, and the PCB board of this utility model.

[0028] Figure 5 This is a diagram showing the relationship between the upper comb tooth insert plate and the lower comb tooth insert plate of this utility model.

[0029] In the diagram: 110, upper comb insert plate; 120, first through hole; 130, second through hole; 140, first non-elastic high-strength fishing line; 150, lower comb insert plate; 160, third through hole; 180, second non-elastic high-strength fishing line; 190, third non-elastic high-strength fishing line; 191, PCB board. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please see Figures 1-5 This application provides a technical solution: a jig for beading in the process of immersion nickel gold on printed circuit boards, including an upper comb tooth insert plate 110, a first non-elastic high-strength fishing line 140, a lower comb tooth insert plate 150, a second non-elastic high-strength fishing line 180 and a third non-elastic high-strength fishing line 190, with a PCB board 191 clamped between the upper comb tooth insert plate 110 and the lower comb tooth insert plate 150;

[0034] A first non-elastic high-strength fishing line 140 is disposed on an upper comb plate 110. A first through hole 120 is provided on the upper comb plate 110. The first non-elastic high-strength fishing line 140 passes through the first through hole 120 and is knotted. A plurality of first through holes 120 are provided on the upper comb plate 110. The plurality of first through holes 120 are linearly and equidistantly disposed on the upper comb plate 110. A second non-elastic high-strength fishing line 180 passes through both the upper comb plate 110 and the PCB board 191. A second through hole 130 is provided on the upper comb plate 110.

[0035] The second non-elastic high-strength fishing line 180 passes through the second through hole 130, and the third non-elastic high-strength fishing line 190 simultaneously passes through the lower comb plate 150 and the PCB board 191. The lower comb plate 150 has a third through hole 160, through which the third non-elastic high-strength fishing line 190 passes. Both the upper comb plate 110 and the lower comb plate 150 are made of Teflon. Teflon has excellent corrosion resistance and heat resistance, is almost unaffected by any chemical substances, and is insoluble in any solvent. It has low-temperature resistance, meaning it will not melt at high temperatures or become brittle at low temperatures. It can be used for a long time at temperatures ranging from -180℃ to 260℃. It is also non-stick, meaning it will not adhere to almost any substance. The first non-elastic high-strength fishing line 140, the second non-elastic high-strength fishing line 180, and the third non-elastic high-strength fishing line 190 are all made of nylon PA6. Nylon PA6 has good toughness, wear resistance, corrosion resistance, and self-lubricating properties. It also has good electrical insulation properties and chemical stability, and a smooth surface with a low coefficient of friction.

[0036] The working principle and process of this utility model are as follows: In use, the PCB board 191 is inserted one by one into the groove fixed by the trolley. The upper comb tooth plate 110 and the lower comb tooth plate 150 are then inserted into the PCB board 191 in sequence along their slot positions, and aligned with the positioning holes on the side of the PCB board 191. Then, a second non-elastic high-strength fishing line 180 is passed through the upper comb tooth plate 110 and the PCB board 191, and a third non-elastic high-strength fishing line 190 is passed through the lower comb tooth plate 180. The first non-elastic high-strength fishing line 140, the second non-elastic high-strength fishing line 180, and the third non-elastic high-strength fishing line 190 are tied together. Hooks are used to connect the knotted second non-elastic high-strength fishing line 180 and the third non-elastic high-strength fishing line 190 to the fly bar. The hooks are then attached to the fly bar to complete the loading operation. After the operation on the PCB board 191 is completed, the board is unloaded, the hooks are removed, and the board is sent to the cleaning line. The first non-elastic high-strength fishing line 140, the second non-elastic high-strength fishing line 180, and the third non-elastic high-strength fishing line 190 are then pulled out. The 190mm high-strength elastic fishing line, after removing the upper comb plate 110 and lower comb plate 150, and cleaning the product, completes the operation. This fixture, used for the immersion nickel-gold process of printed circuit boards, differs from conventional hollow isolation columns used in beading operations, which require manual operation of one bead per product, resulting in low labor efficiency and a high risk of product scratches due to improper handling. Using this fixture maximizes labor efficiency, saving 1-2 people in mass production. The frameless design further increases production capacity and reduces the amount of chemicals carried over, thus saving costs and improving production efficiency. Made of high-strength materials with good stability and corrosion resistance, the fixture ensures stability and durability during long-term operation, reducing maintenance frequency and production costs. The structure is stable and durable. The upper comb plate 110 and lower comb plate 150 provide maximum capacity, labor efficiency, and cost savings for immersion nickel-gold processes and multi-piece operations on gantry lines, making it highly applicable.

[0037] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A process stringing jig for printed circuit board nickel immersion gold, characterized in that, It includes an upper comb tooth insert plate (110), a first non-elastic high-strength fishing line (140), a lower comb tooth insert plate (150), a second non-elastic high-strength fishing line (180) and a third non-elastic high-strength fishing line (190), and a PCB board (191) is clamped between the upper comb tooth insert plate (110) and the lower comb tooth insert plate (150); The first non-elastic high-strength fishing line (140) is disposed on the upper comb tooth insert plate (110), the second non-elastic high-strength fishing line (180) passes through both the upper comb tooth insert plate (110) and the PCB board (191), and the third non-elastic high-strength fishing line (190) passes through both the lower comb tooth insert plate (150) and the PCB board (191).

2. The process string bead jig for nickel immersion gold process of printed circuit board according to claim 1, wherein, The upper comb insert plate (110) has a first through hole (120), and the first non-elastic high-strength fishing line (140) passes through the first through hole (120) and is knotted.

3. The process string bead jig for nickel immersion gold on printed circuit board according to claim 1, wherein, The upper comb insert plate (110) has a second through hole (130), through which the second non-elastic high-strength fishing line (180) passes.

4. The process string bead jig for nickel immersion gold process of printed circuit board according to claim 1, wherein, The lower comb insert plate (150) has a third through hole (160), and the third non-elastic high-strength fishing line (190) passes through the third through hole (160).

5. The process string bead jig for nickel immersion gold process of printed circuit board according to claim 1, wherein, Both the upper comb tooth insert plate (110) and the lower comb tooth insert plate (150) are made of Teflon.

6. The process string bead jig for printed circuit board nickel immersion gold process according to claim 1, wherein, The first non-elastic high-strength fishing line (140), the second non-elastic high-strength fishing line (180) and the third non-elastic high-strength fishing line (190) are all made of nylon PA6.

7. The process stringing jig for nickel immersion gold plating of printed circuit boards according to claim 2, wherein The upper comb tooth insert plate (110) is provided with a plurality of first through holes (120), and the plurality of first through holes (120) are linearly and equidistantly arranged on the upper comb tooth insert plate (110).

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