Urgent conveying reserved control system of producing wire body of high-density interconnection circuit board

Abstract

The invention relates to an urgent conveying reserved control system of producing a wire body of a high-density interconnection circuit board. Respective-control alternating current contactors are connected with each transducer and between two motors in series, wherein the two motors are controlled by one transducer. Coils of the three respective-control alternating current contactors are connected with a general control alternating current contactor. A reserved alternating current contactor is connected between every two motors and one respective-control alternating current contactor on the same branch circuit in parallel. According to the urgent conveying reserved control system of producing the wire body of the high-density interconnection circuit board, during regular works, the three respective-control alternating current contactors are closed to enable the three transducers to control six motors respectively, once the wire body stops working due to stoppages, the general control alternating current contactor can be switched off by operating staff. A close switch enables the three reserved alternating current contactors to be closed. All motors are supplied power by transformers, and then remained panels are transmitted out, and damaged loss of remaining the panels at the development section and the etching section can be avoided.

Description

technical field [0001] The invention belongs to the technical field of high-density interconnection circuit board manufacturing, in particular to a high-density interconnection circuit board production line emergency transfer backup control system. Background technique [0002] In the production line of circuit boards, the DES line manufactured by German Smith Company is controlled by PC, PLC and frequency converter, which has a very high degree of automation and complete protection measures for operators and the line itself. But its protection measures are too conservative, for example: when the air compressor breaks down, the entire line body enters the protection state, all equipment stops, and the machine cannot be started when the air pressure alarm part is released, and for example: the PC crashes or the frequency converter communicates with the PLC When a fault occurs, all equipment is shut down, and the equipment can only be restarted after the fault is contacted. W...

AI Technical Summary

Problems solved by technology

But its protection measures are too conservative, for example: when the air compressor breaks down, the entire line body enters the protection state, all equipment stops, and the machine cannot be started when the air pressure alarm part is released, and for example: the PC crashes or the frequency converter communicates with the PLC When a fault occurs, all equipment is shut down, and the equipment can only be restarted after the fault is contacted

When the line body stops, the inverters of the developing section, etching section and stripping section all stop, and the six motors controlled by the three inverters all stop working. When the shutdown time exceeds 10 minutes, the plates staying in the etching section will be damaged by acid Gas and residual chemical solution corrode and scrapped. When the machine is shut down for more than 40 minutes, the plate staying in the developing section will be damaged due to the peeling off of the dry film, which causes great waste.

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