Double-table-board exposure machine and method for controlling opening and closing of door of double-table-board exposure machine

Abstract

The invention provides a double-table-board exposure machine and a method for controlling the opening and closing of the double-table-board exposure machine, the double-table-board exposure machine comprises a machine body which comprises a first table board and a second table board, a first door body and a second door body, an electric executing device which is arranged on the machine body, is mechanically connected with the first door body and the second door body and is used for controlling the first door body to move in the direction parallel to the table board according to a first door body driving signal, and a control device which is electrically connected with the electric executing device and used for outputting the first door body driving signal or a second door body driving signal according to an operation instruction, wherein the first door body is located on the first table board, a gap is formed between the first door body and the first table board, the second door body is located on the second table board, a gap is formed between the second door body and the second table board, and the first door body and the second door body are staggered in the direction perpendicular to the table boards. According to the double-table-board exposure machine, external dust can be prevented from entering the table boards, and poor exposure is avoided.

Description

technical field [0001] The invention relates to the technical field of exposure equipment, in particular to a double-table exposure machine and a method for controlling the door opening and closing of the double-table exposure machine. Background technique [0002] The direct writing exposure of PCB (Printed Circuit Board, printed circuit board) has high requirements on the production capacity of the machine, so the double table exposure machine came into being. The double table laser direct writing exposure machine has two double tables, which can make one table in the At the same time as the direct writing exposure, the other table is pre-aligned in advance to increase the productivity of the machine. And, many exposure machines use pneumatic doors to control the opening and closing of the doors, and use compressed air to drive the door movement. On the one hand, it is necessary to have an air source on site, and on the other hand, the speed of the door is controlled by th...

AI Technical Summary

Problems solved by technology

[0003] However, the PCB process has high requirements on the environment. If the PCB surface is contaminated with dust during exposure, it will cause poor exposure.

And, if the pneumatic door is used to control the opening and closing of the door, the door may not be able to open properly when the air source is insufficient. If the air source is too large, the speed will be too high to cause impact, and the pneumatic door cannot be positioned with high precision, which may cause the door to close. If it is not in place, it will cause pollution to the PCB board during the exposure process

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