A method for producing PCB traceability codes

Abstract

The present invention provides a method for producing a PCB traceability code, comprising the following steps: S1, board loading: placing a PCB board on a loading plate of a device to facilitate loading; S2, DI exposure: placing the PCB board on the loading plate in S1 and then pushing it into the device for exposure; S3, board unloading: after the PCB board is exposed in S2, the PCB board is unloaded; S4, etching: after unloading the processed PCB board in S3, the PCB board is placed in the device for etching. The method for producing a PCB traceability code provided by the present invention can effectively solve traceability code issues, save costs, and thus meet customer product requirements through the coordinated operations of board loading in S1, DI exposure in S2, board unloading in S3, and etching in S4.

Description

Technical Field

[0001] The present invention relates to the field of circuit board production, and in particular to a method for producing a PCB traceability code. Background Art

[0002] In order to trace defective products, many end customers usually require PCB manufacturers to design traceability codes on their products, so that they can more quickly identify defective batches and PNL products when they encounter defective models. Currently, the conventional process of producing traceability codes requires inkjet printing equipment to reduce the cost of the PCB processing process.

[0003] Currently, traceability codes can only be produced using an inkjet printer. Currently, this equipment has a digital scrolling function so that the numbers will not overlap, but the cost is relatively high. At the same time, due to the limitations of the inkjet printer, the traceability code produced affects the appearance of the product.

[0004] Therefore, it is necessary to provide a PCB traceability code production method to solve the above technical problems. Summary of the Invention

[0005] The present invention provides a method for producing a PCB traceability code, which solves the problem that the traceability code can only be produced by using an inkjet printer. Currently, the device realizes a digital scrolling function so that the numbers do not overlap, but the cost is relatively high. At the same time, due to the limitations of the inkjet printer, the produced traceability code affects the appearance of the product.

[0006] To solve the above technical problems, the present invention provides a method for producing a PCB traceability code, comprising the following steps:

[0007] S1. Loading: Place the PCB board on the loading plate of the equipment for easy loading;

[0008] S2, DI exposure: After placing the PCB on the loading plate in S1, push it into the equipment for exposure operation;

[0009] S3, unloading: after the PCB board is exposed in S2, the PCB board is unloaded;

[0010] S4, etching: After the processed PCB board is cut in S3, it is placed in the equipment for etching operation.

[0011] Preferably, an exposure device is used when performing DI exposure on the PCB board in S2, and the exposure device includes an exposure machine body, and mounting components are provided on the left and right sides of the surface of the exposure machine body, and a rotating component is provided on the surface of the mounting component, and a plurality of storage components are provided on the left and right sides of the rotating component from top to bottom.

[0012] Preferably, the mounting assembly includes a mounting block, and a mounting groove adapted to the mounting block is provided on one side of the surface of the exposure machine body.

[0013] Preferably, the rotating assembly includes a fixed rod, a rotating sleeve is provided on the surface of the fixed rod, connecting frames are symmetrically connected to the left and right sides of the rotating sleeve surface, and a mounting sleeve is provided on the surface of the connecting frame.

[0014] Preferably, one end of the connecting frame and one side of the mounting sleeve are both connected to a fixing plate.

[0015] Preferably, the storage assembly includes a bottom plate, and positioning plates are connected to the left and right sides of the bottom plate surface, and a plurality of placement slots are sequentially provided on the opposite sides of the two positioning plates from left to right.

[0016] Preferably, a disassembly assembly is provided between the fixed plate and the base plate, the disassembly assembly includes a disassembly block, a disassembly groove adapted to the disassembly block is opened on one side of the fixed plate, and one side of the disassembly block is connected to one side of the fixed plate.

[0017] Preferably, a placement component is provided on the surface of the exposure machine body, and the placement component includes a rectangular mounting plate, and a placement box is provided on the surface of the rectangular mounting plate.

[0018] Preferably, the left and right sides of the bottom of the placement box are connected with card blocks, and the left and right sides of the surface of the rectangular mounting plate are provided with card slots adapted to the two card blocks.

[0019] Preferably, rectangular fixing blocks are connected to the left and right sides of the bottom of the rectangular mounting plate, connecting bolts are provided inside the rectangular fixing blocks, and connecting holes adapted to the connecting bolts are provided on the surface of the exposure machine body.

[0020] Compared with related technologies, the PCB traceability code production method provided by the present invention has the following beneficial effects:

[0021] The present invention provides a method for producing a PCB traceability code. By coordinating operations among the upper plate in S1, the DI exposure in S2, the lower plate in S3, and the etching in S4, the traceability code issue can be effectively solved, the cost can be saved, and the product requirements of the client can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a first embodiment of a method for producing a PCB traceability code provided by the present invention;

[0023] Figure 2 A schematic structural diagram of a second embodiment of a method for producing a PCB traceability code provided by the present invention;

[0024] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0025] Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown;

[0026] Figure 5 for Figure 2 An enlarged schematic diagram of section C is shown;

[0027] Figure 6 for Figure 2 A schematic diagram of the overall three-dimensional structure of the device shown;

[0028] Figure 7 A schematic structural diagram of a third embodiment of a PCB traceability code production method provided by the present invention;

[0029] Figure 8 for Figure 7 An enlarged schematic diagram of part D is shown.

[0030] Numbers in the figure: 1, exposure machine body;

[0031] 2. Mounting assembly; 21. Mounting block; 22. Mounting slot;

[0032] 3. Rotating assembly; 31. Fixing rod; 32. Rotating sleeve; 33. Connecting frame; 34. Mounting sleeve; 35. Fixing plate;

[0033] 4. Storage components; 41. Bottom plate; 42. Positioning plate; 43. Placement slot;

[0034] 5. Disassembly assembly; 51. Disassembly block; 52. Disassembly slot;

[0035] 6. Placement component; 61. Rectangular mounting plate; 62. Placement box; 63. Card block; 64. Card slot; 65. Rectangular fixing block; 66. Connecting bolt. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] First embodiment

[0038] Please refer to Figure 1 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a method for producing a PCB traceability code provided by the present invention. A method for producing a PCB traceability code includes the following steps:

[0039] S1. Loading: Place the PCB board on the loading plate of the equipment for easy loading;

[0040] S2, DI exposure: After placing the PCB on the loading plate in S1, push it into the equipment for exposure operation;

[0041] S3, unloading: after the PCB board is exposed in S2, the PCB board is unloaded;

[0042] S4, etching: After the processed PCB board is cut in S3, it is placed in the equipment for etching operation.

[0043] The PCB etching process generally includes the following steps:

[0044] Graphic transfer: The designed circuit pattern is transferred to the PCB board through photochemical etching, metal screen printing etching or graphic electroplating etching;

[0045] Etching: Use an etching solution to remove unwanted copper foil from the PCB to form the circuit pattern. The etching solution can be acidic or alkaline, and the specific choice depends on the type of PCB board and process requirements;

[0046] Cleaning: After etching, the residual etching solution and impurities on the PCB board need to be cleaned to ensure the quality of the circuit board;

[0047] Inspection: Inspect the etched PCB board to ensure the accuracy and integrity of the circuit pattern.

[0048] By optimizing the outer DI exposure equipment, the equipment is equipped with a digital scrolling function to produce product traceability codes.

[0049] When etching PCB boards, the etching speed and depth can be controlled in the following ways:

[0050] Concentration of etching solution: Properly adjust the concentration of chemicals in the etching solution. Generally, the higher the concentration, the faster the etching speed. However, it is also necessary to note that too high a concentration may cause uneven etching or excessive etching.

[0051] Temperature of etching solution: Increasing the temperature of etching solution can speed up the etching reaction, but too high temperature may affect the etching quality and accuracy. Generally, the temperature is controlled within an appropriate range through a heating device.

[0052] Stirring of etching solution: Strengthening the stirring of etching solution can make the etching solution fully contact with the surface of PCB board, thereby improving the uniformity and speed of etching.

[0053] Etching time: Accurately control the immersion time of the PCB board in the etching solution. This is a key factor that directly affects the etching depth. It can be accurately controlled through timers and automated equipment.

[0054] PCB material and thickness: PCBs of different materials and thicknesses affect the etching speed and depth. Before etching, you need to fully understand the characteristics of the board to estimate the conditions required for etching.

[0055] pH value of etching solution: According to the type of etching solution, adjust the appropriate pH value to achieve the ideal etching speed and depth.

[0056] Equipment performance and precision: Using high-precision, stable-performance etching equipment can more accurately control etching parameters such as spray pressure and flow rate, thereby achieving effective control of etching speed and depth.

[0057] Compared with related technologies, the PCB traceability code production method provided by the present invention has the following beneficial effects:

[0058] The present invention provides a method for producing a PCB traceability code. By coordinating operations among the upper plate in S1, the DI exposure in S2, the lower plate in S3, and the etching in S4, the traceability code issue can be effectively solved, the cost can be saved, and the product requirements of the client can be met.

[0059] Second embodiment

[0060] Please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 Based on the method for producing a PCB traceability code provided in the first embodiment of this application, the second embodiment of this application proposes another method for producing a PCB traceability code. The second embodiment is merely a preferred method of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0061] Specifically, the difference of the PCB traceability code production method provided in the second embodiment of the present application is that, in a PCB traceability code production method, an exposure device is used when DI exposure of the PCB board is performed in S2, and the exposure device includes an exposure machine body 1, and mounting components 2 are provided on both sides of the left and right sides of the surface of the exposure machine body 1, and a rotating component 3 is provided on the surface of the mounting component 2, and a plurality of storage components 4 are provided on the left and right sides of the rotating component 3 from top to bottom.

[0062] The mounting assembly 2 includes a mounting block 21 , and a mounting groove 22 adapted to the mounting block 21 is formed on one side of the surface of the exposure machine body 1 .

[0063] The rotating assembly 3 includes a fixed rod 31 , a rotating sleeve 32 is sleeved on the surface of the fixed rod 31 , connecting frames 33 are symmetrically connected to the left and right sides of the rotating sleeve 32 , and a mounting sleeve 34 is sleeved on the surface of the connecting frame 33 .

[0064] The mounting block 21 is connected to the bottom end of the fixing rod 31. The mounting block 21 and the mounting slot 22 are adapted to a T-shape. The mounting block 21 and the mounting slot 22 facilitate installation and disassembly of the rotating assembly 3. Bolts are provided inside the mounting block 21, and threaded holes adapted to the bolts are provided at the bottom of the inner wall of the mounting slot 22. The rotating sleeve 32 is connected to the fixing rod 31 through a bearing. The use of the rotating sleeve 32 is convenient for placing the PCB board on the bottom plate 41 with the positioning plate 42 on one side. The bottom plate 41 with the positioning plate 42 can be driven to rotate to one side by the rotating sleeve 32 to replace another group of bottom plates 41 with positioning plates 42.

[0065] One end of the connecting frame 33 and one side of the mounting sleeve 34 are both connected to a fixing plate 35 .

[0066] The storage assembly 4 includes a bottom plate 41 , and positioning plates 42 are connected to the left and right sides of the bottom plate 41 . A plurality of placement slots 43 are sequentially opened on opposite sides of the two positioning plates 42 from left to right.

[0067] A disassembly assembly 5 is provided between the fixed plate 35 and the bottom plate 41 . The disassembly assembly 5 includes a disassembly block 51 . A disassembly groove 52 adapted to the disassembly block 51 is provided on one side of the fixed plate 35 . One side of the disassembly block 51 is connected to one side of the fixed plate 35 .

[0068] The disassembly groove 52 and the disassembly block 51 are adapted to be T-shaped. Using the disassembly groove 52 and the disassembly block 51, the processed PCB boards can be placed on the bottom plate 41 with two positioning plates 42 for disassembly and replacement. When in use, the disassembly block 51 can be separated from the disassembly groove 52 opened on one side of the fixed plate 35 by pulling the bottom plate 41 with two positioning plates 42.

[0069] The working principle of the PCB traceability code production method provided by the present invention is as follows:

[0070] During use, when placing the processed PCB board in a narrow space, first align and contact the mounting block 21 with the rotating component 3 with the mounting groove 22 on one side of the exposure machine body 1. After the mounting block 21 is aligned and contacted with the mounting groove 22, the mounting block 21 is moved to the inside of the mounting groove 22 by pushing the rotating component 3. After the rotating component 3 is installed, the bottom plate 41 with the disassembly block 51 and two positioning plates 42 with multiple placement grooves 43 is connected to the disassembly groove 52 on one end of the connecting frame 33 and the fixed plate 35 on one side of the mounting sleeve 34. After installing the bottom plate 41 with the two positioning plates 42, the processed PCB board can be placed between the symmetrical placement grooves 43 opened on the opposite sides of the two positioning plates 42.

[0071] Compared with related technologies, the PCB traceability code production method provided by the present invention has the following beneficial effects:

[0072] The present invention provides a method for producing a PCB traceability code. A mounting assembly 2, a rotating assembly 3, a bottom plate 41, and two positioning plates 42 with multiple placement plates 43 are arranged on the surface of an exposure machine body 1, and the two plates cooperate with each other to operate. This method can replace the current external placement rack for PCB boards, and can prevent the situation where an externally placed placement rack cannot be placed when the exposure machine body 1 is operated in a narrow space.

[0073] Third embodiment

[0074] Please refer to Figure 7 and Figure 8 Based on the method for producing a PCB traceability code provided in the first embodiment of this application, the third embodiment of this application proposes another method for producing a PCB traceability code. The third embodiment is merely a preferred method of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0075] Specifically, the difference of the PCB traceability code production method provided in the third embodiment of the present application is that, in a PCB traceability code production method, a placement component 6 is provided on the surface of the exposure machine body 1, and the placement component 6 includes a rectangular mounting plate 61, and a placement box 62 is provided on the surface of the rectangular mounting plate 61.

[0076] The rectangular mounting plate 61 is connected to the exposure machine body 1 through a rectangular fixing block 65 and a connecting bolt 66. The card block 63 and the card slot 64 are adapted to be T-shaped. The use of the card block 63 and the card slot 64 facilitates the installation of the placement box 62 on the rectangular mounting plate 61. When in use, when installing the placement box 62, first align the card block 63 at the bottom of the placement box 62 with the card slot 64 opened on one side of the rectangular mounting plate 61. After the card block 63 is aligned with one side of the card slot 64, push the placement box 62 to drive the card block 63 to move to the card slot 64 on the surface of the rectangular mounting plate 61 for overlap and connection.

[0077] When fixing the rectangular mounting plate 61 to the exposure machine body 1, first make the rectangular mounting plate 61 with the rectangular fixing block 65 contact the side of the exposure machine body 1, and then use the connecting bolt 66 to pass through the rectangular fixing block 65 and connect it to the exposure machine body 1.

[0078] The left and right sides of the bottom of the placement box 62 are connected with clamping blocks 63 , and the left and right sides of the surface of the rectangular mounting plate 61 are provided with clamping slots 64 adapted to the two clamping blocks 63 .

[0079] Rectangular fixing blocks 65 are connected to the left and right sides of the bottom of the rectangular mounting plate 61 . Connecting bolts 66 are provided inside the rectangular fixing blocks 65 . Connecting holes that match the connecting bolts 66 are opened on the surface of the exposure machine body 1 .

[0080] Compared with related technologies, the PCB traceability code production method provided by the present invention has the following beneficial effects:

[0081] The present invention provides a method for producing a PCB traceability code. Placing components 6 are arranged on both the left and right sides of the surface of an exposure machine body 1, so that the number of PCB boards placed can be increased after the PCB boards are processed.

[0082] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for producing a PCB traceability code, characterized in that: The following steps are involved: S1. Loading: Place the PCB board on the loading plate of the equipment for easy loading; S2, DI exposure: After placing the PCB on the loading plate in S1, push it into the equipment for exposure operation; S3, unloading: after the PCB board is exposed in S2, the PCB board is unloaded; S4, etching: After the PCB board is processed in S3, it is placed in the equipment for etching operation; When performing DI exposure on the PCB board in S2, an exposure device is used. The exposure device includes an exposure machine body, and mounting components are provided on both left and right sides of the surface of the exposure machine body. A rotating component is provided on the surface of the mounting component, and a plurality of storage components are provided on the left and right sides of the rotating component from top to bottom. The mounting assembly includes a mounting block, and a mounting groove adapted to the mounting block is provided on one side of the surface of the exposure machine body; The rotating assembly includes a fixed rod, a rotating sleeve is provided on the surface of the fixed rod, a connecting frame is symmetrically connected to the left and right sides of the rotating sleeve, and a mounting sleeve is provided on the surface of the connecting frame; One end of the connecting frame and one side of the mounting sleeve are both connected with a fixing plate; The storage assembly includes a bottom plate, and positioning plates are connected to the left and right sides of the bottom plate surface, and a plurality of placement slots are sequentially opened on the opposite sides of the two positioning plates from left to right; A disassembly assembly is provided between the fixed plate and the bottom plate, and the disassembly assembly includes a disassembly block. A disassembly groove adapted to the disassembly block is provided on one side of the fixed plate, and one side of the disassembly block is connected to one side of the fixed plate.

2. The PCB traceability code production method according to claim 1, characterized in that: A placement component is provided on the surface of the exposure machine body. The placement component includes a rectangular mounting plate. A placement box is provided on the surface of the rectangular mounting plate.

3. The PCB traceability code production method according to claim 2, characterized in that: The left and right sides of the bottom of the placement box are both connected with card blocks, and the left and right sides of the surface of the rectangular installation plate are both provided with card slots adapted to the two card blocks.

4. The PCB traceability code production method according to claim 2, characterized in that: Rectangular fixing blocks are connected to the left and right sides of the bottom of the rectangular mounting plate. Connecting bolts are provided inside the rectangular fixing blocks. Connecting holes that match the connecting bolts are opened on the surface of the exposure machine body.

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