Rotation rate-analog voltage transformation module

Abstract

A rotary speed - analog voltage conversion module comprising an outer casing and an electronic circuit, the circuit includes at least rotary speed signal detection circuit, signal processing circuit,signal calculation single chip computer, D / A conversion circuit, error detection circuit, display circuit, memory device and a power supply, the rotary speed signal detection circuit includes an approach switch, the signal processing circuit comprises an photoelectric coupler and a trigger unit, the drive circuit contains an arithmetic magnifier, the error detecting circuit comprises MAX813L reset and watchdog circuit. The advantages of the invention are simplified structure, low cost in making and operation, thus the invention may be widely applied in the automatic packaging units.

Description

technical field [0001] The invention belongs to the technical field of non-electric power-electric power signal conversion, and more specifically relates to the design of a rotating speed-analog voltage conversion module controlled by a single-chip microcomputer in real time. Background technique [0002] In the existing automatic pillow packing machine with dual frequency converter structure, the synchronization between the master and slave motors is often destroyed after the material is cut during the production process. There are two main reasons: on the one hand, the problem is inevitable due to the control structure itself; on the other hand, the use of PLC as a control solution cannot solve this problem due to its relatively low processing speed. Therefore, although the automatic packaging machine with double inverter structure is low in cost, simple in structure and low in noise, it is not widely used in the market. The high-end automatic pi...

AI Technical Summary

Problems solved by technology

There are two main reasons: on the one hand, the problem is inevitable due to the control structure itself; on the other hand, the use of PLC as a control solution cannot solve this problem due to its relatively low processing speed.

Therefore, although the automatic packaging machine with double inverter structure is low in cost, simple in structure and low in noise, it is not widely used in the market.

The high-end automatic pillow packaging machine adopts the servo motor structure, which has high precision and low noise, but the cost is high and the structure is complicated, so the price is very high

On the contrary, although the production cost of the automatic packaging machine with mechanical linkage is low, the user's use cost due to mechanical wear and tear during use is very high, and at the same time, it is noisy and has low precision, so its price is low and the profit is low.

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