Large-sheet single-table inkjet machine

Abstract

The invention discloses a large-sheet single-table inkjet machine which includes a machine table assembly, a printing work table assembly, a CCD alignment system, an inkjet printing trolley assembly,a pressing plate device, a nozzle cleaning device, an ink supply system and a control system. According to the large-sheet single-table inkjet machine, dual-CCD photographing is used for quickly aligning circuit boards, a bidirectional printing unit is used for performing go and return inkjet printing on the circuit boards, a printing table adopts four-sided mobile fixtures so as to meet the requirement for clamping sheets from small to large, the pressing plate device is arranged to solve the problem that sheets warps and cannot be normally produced when inkjet printing is performed on large-size sheets, and the large-sheet single-table inkjet machine can meet the requirement for production of the special large-size sheets and can flexibly adapt to production of sheets in various sizes.

Description

technical field [0001] The invention relates to the field of printing equipment for printed circuit boards, in particular to a single-table inkjet machine for large sheets. Background technique [0002] At present, ordinary single-table inkjet printing equipment in the printed circuit board production industry is usually only equipped with a single set of CCD and a small number of nozzles due to its solidification design principle, and the CCD alignment unit and inkjet printing unit are integrated into the same set of mechanical devices. Positioning and printing operations must be performed by the same set of equipment, resulting in low production efficiency, and the size of the sheet that can be produced is also very limited. With the continuous emergence of non-large-volume and unconventional large-scale production needs in the market, circuit board manufacturers need a spray nozzle that can not only meet special large-scale production but also flexibly adapt to the produc...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a single-table inkjet machine for large sheets, to quickly align the PCB circuit boards by using dual CCDs to take pictures in flight, and to use a two-way printing trolley to carry out forward and backward alignment of the PCB circuit boards. For return inkjet printing, the four-side fixture and the centrally positioned printing table can meet the clamping requirements from small sheets to large sheets, and set a platen device between adjacent nozzles to overcome the problem of large-size sheets. The problem that the board warping cannot be produced normally during inkjet printing

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