Plastic bag sealing machine circuit diagram 1

Published:2011/5/18 19:38:00 Author:Lucas | Keyword: Plastic bag , sealing machine | From:SeekIC

The plastic sealing circuit is composed of power circuit, control circuit and heating circuit, the circuit is shown as the chart. Power supply circuit is composed of rectifier diode VD1, filter capacitor C1 and the step-down resistors R1, R2. Control circuit is composed of control button S, resistors R3, R4, potentiometer RP, capacitor C2, diode VD2, transistor V, voltage regulator diode VS, thyristor VT, light-emitting diode VL and relay K. Heating circuit is composed of normally open contact K and power transformer T, heater EH. Adjusting the resistance of RP can change the charging time of C2, thus change the EH heating time to adapt the sealing with different thickness and material.



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