Electrostatic spraying method for printed circuit board

Abstract

The invention discloses an electrostatic spraying method for a printed circuit board. The electrostatic spraying method involves a product placement area, a product classification area, a detection area and an electrostatic spraying; the spraying area is provided with a lower baffle used for adjusting the spraying height and a movable clamp used for adjusting the spraying width. The spraying method comprises the following steps of (1) classifying products in the product placement area in the product classification area according to the widths of the products, and controlling the widths of allbatches of processed products to be consistent; (2) carrying out height classification detection on the circuit boards classified in the product classification area by the detection area; (3) adjusting the spraying height of the electrostatic spraying area according to the height of the printed circuit board; (4) according to the width size of the circuit board, adjusting the movable clamp to cover the spraying area of a nozzle on an electrostatic spraying machine; and (5) spraying the circuit board. The electrostatic spraying method has the beneficial effects that the circuit board can be better sprayed according to the width and the height of the circuit board through cooperation of the lower baffle and the movable clamp, and operation is convenient.

Description

technical field [0001] The invention relates to the technical field of electrostatic spraying, in particular to a method for electrostatic spraying of printed circuit boards. Background technique [0002] Using electrostatic spraying machine to spray circuit boards has high production efficiency and is easy to operate. The sprayed circuit boards have better quality assurance. Therefore, electrostatic spraying machines have been recognized by more and more circuit board manufacturers. [0003] However, when the existing circuit boards are electrostatically sprayed, because the width and height of the circuit boards are not uniform, if the processing is not adjusted according to the size of the circuit boards, after the circuit boards are processed, due to the problem of large width, it is easy to cause various problems. The spraying depth of the parts is different, and due to the height problem, the edge of the board is prone to oil accumulation. [0004] In view of the abov...

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Problems solved by technology

[0003] However, when the existing circuit boards are electrostatically sprayed, because the width and height of the circuit boards are not uniform, if the processing is not adjusted according to the size of the circuit boards, after the circuit boards are processed, due to the problem of large width, it is easy to cause various problems. The spraying depth of the parts is different. Due to the height problem, the edge of the board is prone to oil accumulation.

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