Printing device for printed circuit boards

Abstract

This invention discloses a text printing apparatus for a printed circuit board. The text printing apparatus includes a loading unit, a recognition unit, an instruction generation unit, and a printing unit. The loading unit loads a text printing blueprint. The recognition unit is electrically coupled to the loading unit. The recognition unit can recognize the geometric features of the text in the text printing blueprint to establish multiple text specifications. The instruction generation unit is electrically coupled to the recognition unit. The instruction generation unit can select multiple ink specifications corresponding to the multiple text specifications through an ink reference table to generate multiple printing instructions. The printing unit is electrically coupled to the instruction generation unit. The printing unit can load multiple printing instructions to print on a printed circuit board.

Claims

1. A text printing apparatus for a printed circuit board, comprising: A loading unit is used to load a text printing blueprint; An identification unit, electrically coupled to the loading unit, is capable of identifying the geometric features of the text in the text printing blueprint to establish multiple text specifications; and an instruction generation unit, electrically coupled to the identification unit, is capable of selecting multiple ink specifications corresponding to the multiple text specifications through an ink reference table to generate multiple printing instructions. And a printing unit electrically coupled to the instruction generation unit, the printing unit being capable of loading multiple printing instructions to print on a printed circuit board.

2. The text printing apparatus for a printed circuit board according to claim 1, wherein, The geometric features of the text include at least one of the following: the line width of a text, the area of ​​a text, and the coverage of a text within a unit area.

3. The text printing apparatus for a printed circuit board according to claim 1, wherein, The instruction generation unit includes a microprocessor and a physical memory electrically connected to the microprocessor, wherein the physical memory contains and stores the ink reference table.

4. The text printing apparatus for a printed circuit board according to claim 3, wherein, The ink reference table has multiple preset color difference compensation parameters, which correspond to the color variation data of the printed circuit board in a subsequent thermal process at a temperature range of 150°C to 260°C.

5. The text printing apparatus for a printed circuit board according to claim 2, wherein, The identification unit includes a hardware logic circuit for classifying the text line width into a first type of line width and a second type of line width, wherein the first type of line width is between 50 micrometers and 100 micrometers, and the second type of line width is greater than 100 micrometers; the instruction generation unit selects different ink specifications based on the first type of line width and the second type of line width.

6. The text printing apparatus for a printed circuit board according to claim 2, wherein, The identification unit includes a hardware logic circuit for classifying the text area into a first type of text block and a second type of text block. The size of the first type of text block is between 1 square millimeter and 25 square millimeters, and the size of the second type of text block is greater than 25 square millimeters.

7. The text printing apparatus for a printed circuit board according to claim 1, wherein, The printing unit includes an ink supply system, which has multiple independent physical ink storage tanks, each of which contains a variety of inks corresponding to different ink specifications.

8. The text printing apparatus for a printed circuit board according to claim 7, wherein, At least one of the said physical ink storage tanks includes a main ink tank assembly, a leveling ink tank, and a compensation ink tank, wherein the main ink tank assembly is connected to the leveling ink tank via an ink supply pipe, and the leveling ink tank is connected to the compensation ink tank via another ink supply pipe.

9. The text printing apparatus for a printed circuit board according to claim 7, wherein, The ink supply system further includes an ink mixing valve unit and multiple ink supply lines. The multiple ink supply lines are connected to multiple physical ink storage tanks and the ink mixing valve unit. The ink mixing valve unit dynamically adjusts the ink flow rate from different physical ink storage tanks according to multiple printing instructions to instantly mix and generate the corresponding ink specifications.

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