PLC control system and method of servo energy-saving control system of ceramic press

Abstract

The invention discloses a PLC control system and method of a servo energy-saving control system of a ceramic press. A pressure \ adjusting end of a pilot overflow valve is communicated with an oil tank sequentially through a proportional overflow valve and a three-position four-way valve and is communicated with the oil tank through an overflow valve; a first position sensor and a second position sensor are arranged on a pressure die casting machine; and the first position sensor, the second position sensor, a contact detection sensor, a first motor, the proportional overflow valve, a two-position four-way valve and a three-position four-way valve are all electrically connected with a servo driver. The PLC control device enables the pressure die casing machine to achieve automatic adjusting of working pressure and flow according to the different technological stages, and aim that the amount of flow and pressure are provided according to the needed amount of flow and pressure; many resources can be saved, and the phenomenon that an original press oil pump runs at full speed all the time, and electric energy is wasted is completely avoided.

Description

technical field [0001] The invention relates to the technical field of energy saving of ceramic die-casting machines, and more specifically relates to a PLC control system and method of a ceramic press servo energy-saving control system. Background technique [0002] In the prior art, when the brick press is in an automatic cycle, the powder is sent from the material box above the back of the brick press to the hopper in the material distribution device of the brick press through a hose, and the material distribution trolley moves forward to replace the previous pressure. When a good brick is pushed out, the top mold cylinder is lowered once to fill the mold cavity with powder, the cloth trolley returns to the rear position, the top mold cylinder is lowered twice to realize pier material, and the lower mold core falls on the working table to prepare for pressing. , the upper mold first starts slowly in the first low-speed stroke, and when the upper mold descends to the high-...

AI Technical Summary

Problems solved by technology

[0003] In the process of each cycle, the oil cylinder in the material distribution process does not work, and the flow and pressure required by the oil cylinder are different in different stages of pressing, while the oil pump always runs at full speed, causing a lot of energy loss on the relief valve, and the system cannot meet demand oil supply

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