Circuit board photoelectric exposure machine

Abstract

A circuit board photoelectric exposure machine includes a body, an upper exposure glass, a lower exposure glass, an upper exposure frame, a lower exposure frame, an upper exposure lamp and a lower exposure lamp, and the upper exposure glass and the lower exposure glass are respectively driven by a transmission device alternately Moving in and out of the exposure chamber, the upper exposure lamp and the lower exposure lamp move left and right under the drive of the first servo motor and the second servo motor respectively, and the circuit patterns on the upper exposure glass and the lower exposure glass film are printed on the circuit board through exposure superior. The invention has the characteristics of high exposure precision and work efficiency, low labor and production costs, simple structure, convenient operation and the like.

Description

【Technical field】 [0001] The invention relates to a circuit board exposure device, in particular to a circuit board photoelectric exposure machine with high working efficiency and low cost. 【Background technique】 [0002] Exposure machine is widely used in the printed circuit board manufacturing industry. It is a circuit board manufacturing equipment that transfers the electronic circuit pattern on the negative film to the surface coated with photosensitive material by emitting light from the exposure light source. Commonly used exposure machines include manual exposure machines and CCD automatic exposure machines. Whether it is a manual exposure machine or a CCD automatic exposure machine, it is necessary to align the film and the circuit board. Among them, the existing manual exposure machine manually aligns each piece. The marking point of the circuit board is aligned with the marking point of the film, and then the two are bonded with double-sided tape and then placed in...

AI Technical Summary

Problems solved by technology

Commonly used exposure machines include manual exposure machines and CCD automatic exposure machines. Whether it is a manual exposure machine or a CCD automatic exposure machine, it is necessary to align the film and the circuit board. Among them, the existing manual exposure machine manually aligns each piece. The marking point of the circuit board is aligned with the marking point of the film, and then the two are bonded with double-sided tape and then placed in the exposure machine for exposure. Therefore, three operators are required to carry out the work, and the circuit board and the film are easy to move during the exposure process. bit, leading to defects such as low exposure efficiency and low positioning accuracy

The CCD automatic exposure machine controls the position of the film mark point and the circuit board mark point through the computer program to locate. Although it can improve the exposure efficiency and accuracy to a certain extent, it must perform positioning calculations for each exposure, which affects the exposure efficiency. There are high cost defects

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