Calender roller deflection correcting circuit

Abstract

The invention discloses a calender roller deflection correcting circuit which comprises a deflection angle signal acquisition circuit, a deflection angle deviation signal processing circuit and a drive circuit. The calender roller deflection correcting circuit has the advantages that a calender roller deflection angle signal is acquired by an angular displacement sensor H1; when the electric potential of an output signal reaches +4 V or below, the conduction of a triode Q1 is achieved, a resistor R1 is connected in parallel with a resistor R2, a resistor R5 and a resistor R6, and the electric potential of a signal which flows into an LC circuit is increased and stabilized at +4 V or above; when the electric potential of the output signal reaches +8 V and above, the conduction of a triode Q2 is achieved, the electric potential of the signal which flows into the LC circuit is decreased and stabilized at +8 V or below, and the measurement precision is improved; through the comparison between the calender roller deflection angle signal and two threshold deflection angle signals of a window circuit which consists of an operational amplifier AR2 and an operational amplifier AR3, and opposite scaled-up abnormal deflection angle deviation signals are outputted; through the drive circuit, the opposite scaled-up abnormal deflection angle deviation signals are converted into proportional-pulse-width rectangular pulse deviation signals, and then the proportional-pulse-width rectangular pulse deviation signals directly serve as forward and reverse deviation correcting signals of a calender roller motor; and accordingly, the deviation is quickly and accurately corrected, and the correcting precision is improved.

Description

technical field [0001] The invention relates to the field of circuit technology, in particular to a calender roll deflection correction circuit. Background technique [0002] In the processing of PVC electrical tape, the calender process is an important link, which requires high efficiency and precise work. This is a characteristic of the PVC calender, and the roller deflection is not easy to control when the PVC calender is working, and often occurs Skew, even a little skew will affect the processing effect of the product. How to accurately correct the deviation of the roller of the PVC calender and improve the work efficiency is a technical problem that the PVC calender has been studying, and it is also the researcher who has been constantly improving the PVC calender. Purpose, currently the main solution is to collect the deflection displacement or speed signal of the calender roller, analyze and judge the deflection correction of the calender roller, but the accuracy is ...

AI Technical Summary

Problems solved by technology

[0002] In the processing of PVC electrical tape, the calender process is an important link, which requires high efficiency and precise work. This is a characteristic of the PVC calender, and the roller deflection is not easy to control when the PVC calender is working, and often occurs Skew, even a little skew will affect the processing effect of the product. How to accurately correct the deviation of the roller of the PVC calender and improve the work efficiency is a technical problem that the PVC calender has been studying, and it is also the researcher who has been constantly improving the PVC calender. Purpose, currently the main solution is to collect the calender roller deflection displacement or speed signal, analyze and judge the calender roller deflection correction, but the accuracy is not accurate, and the error is still large

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