Vertical gap adjusting system for longitudinal stretching section of thin film production line

The invention discloses a vertical gap adjusting system for a longitudinal stretching section of a film production line, which relates to the technical field of gap adjusting rollers and comprises a frame body, a first lifting frame, a second lifting frame, a lifting mechanism, a driving connection and feedback system of the lifting mechanism, a stretching roller, a bearing seat of the stretching roller, a rubber compression roller and a control unit of the rubber compression roller. When the vertical gap adjusting system for the longitudinal stretching section of the film production line is used, a wallboard frame is fixed on the upper part of the original stretching section, a linear guide rail sliding seat is fixed outside an operation side vertical plate and a driving side vertical plate, and a linear guide rail is fixed on an operation side lifting frame and a driving side lifting frame which are connected with a gap adjustable roller; the operation side vertical plate and the driving side vertical plate