Active protective plate turnover machine for medium thick plates

Abstract

The invention discloses an active protective plate turnover machine for medium thick plates. A protective system is adopted, wherein the protective system is provided with a plate inlet end cold metal detector, a middle section cold metal detector, a plate outlet end cold metal detector, a turning arm driving device control module and a PLC automatic controller; when a medium thick plate workpiece is not positioned on the plate inlet end cold metal detector, the middle section cold metal detector or the plate outlet end cold metal detector, the switching circuit of a turning arm driving device is valid, and the plate turnover machine can be started through an operator to perform normal plate turnover operation; and when the medium thick plate workpiece passes through or stops on the plate inlet end cold metal detector, the middle section cold metal detector or the plate outlet end cold metal detector, an PLC automatic control system sends a command signal to the turning arm driving device control module to form linkage protection, the switching circuit of the turning arm driving device is invalid, and the operator cannot start a drive motor of the plate turnover machine so that the plate turnover machine cannot be operated in a dangerous state. Therefore, the problems of plate turnover machine damage and production line shutdown caused by incorrect operation are avoided, the production efficiency is improved, and the production cost and the maintenance cost of equipment are reduced.

Description

technical field [0001] The invention relates to a main equipment for producing medium and thick plates, in particular to a plate turning machine in the production process of medium and thick plates. Background technique [0002] The plate turning machine is one of the more important equipment on the plate production line. It is mainly used to turn over the finished plate for inspection or other processes. The existing plate turning machine includes the fuselage, the turning arm at the plate inlet end, the turning arm at the plate exit end, and the turning arm driving device. The turning arm and the turning arm of the board-out end are closed and turned to the turning arm of the board-out end to achieve the purpose of turning over the board. [0003] In the prior art, the conveying device transports the medium-thick plate workpiece to the flip arm at the feed end through the conveying channel. During the conveying process, the following problems may occur due to misoperatio...

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Problems solved by technology

[0003] In the prior art, the conveying device transports the medium-thick plate workpiece to the flip arm at the feed end through the conveying channel. During the conveying process, the following problems may occur due to misoperation: 1. The front end of the medium-thick plate workpiece may enter The lower part of the turning arm at the feeding end is in hard contact with the workpiece during the falling process of the turning arm, causing damage to the transmission mechanism of the turning machine; After the turning arms at the plate end are closed, the supporting blocks of the two arms will clamp the workpiece, resulting in hard contact, which will cause damage to the transmission mechanism of the turning machine; The lower part of the turning arm at the output end is in hard contact with the workpiece during the falling process of the turning arm, causing damage to the transmission mechanism of the turning machine

[0004] The above problems will lead to long-term shutdown of the plate turning machine, which will affect the smooth production of medium and thick plates, increase the production cost of medium and heavy plates and the maintenance cost of the plate turning machine, and seriously reduce the operating efficiency of the entire production line

Therefore, it is necessary to improve the existing plate turning machine. When the medium and thick plate workpiece enters the turning arm at the end of the plate and the end of the plate, and crosses the support block on the turning arm at the end of the plate, when a dangerous state is formed, it passes through the cold metal position. Detection, electrical interlocking, and the drive motor will not start, so as to avoid the damage caused by the turnover machine and its components and the shutdown of the production line due to operating errors

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