Shape-restoring device and a restoring method for distorted filmstrips

A shape-restoring device for distorted filmstrips, comprising:

• a bracket, a base, a first pressing-plate cylinder, a second pressing-plate cylinder, a pressing plate, a heating panel, heating resistors, a temperature sensor, a film-unwinding reel, a film-winding reel, a hanging rack, a bottom plate, a first film-clasping cylinder, and a second film-clasping cylinder, wherein
• a) the bracket is fixed on an upper surface of the base to form a frame structure;
• the first pressing-plate cylinder and the second pressing-plate cylinder are installed on a crossbeam of the bracket;
• cylinder spindles of the first pressing-plate cylinder and of the second pressing-plate cylinder pass through the crossbeam and are fixedly connected to connecting rods of the hanging rack in the frame, the frame including the bracket and the base;
• the heating panel and the pressing plate are located within the frame, the frame including the bracket and the base, and the heating panel is installed on the upper surface of the base;
• the pressing plate is fixed on a lower surface of the hanging rack;
• the pressing plate having a binding underlay on a lower surface thereof;
• an upper surface of the pressing plate is fixed with a limiting sleeve on each side thereof, respectively;
• positioning spindles are fixed to the crossbeam of the bracket at respective ends thereof, and the other ends thereof are telescoped within respective ones of the limiting sleeves;
• and the film-unwinding reel is located on one side of the base and the film-winding reel is located on another side of the base;
• b) the first film-clasping cylinder and the second film-clasping cylinder are fixed to outer surfaces of end wall plates of the bracket;
• spindles of the first film-clasping cylinder and of the second film-clasping cylinder are connected with upper collets, which correspond, in of location, to lower collets that are fixed beneath the first film-clasping cylinder and the second film-clasping cylinder;
• surfaces of the upper collets and of the lower collets include arcs that match with each other;
• the surfaces of both lower collets are located in substantially a same height as an upper surface of the heating panel;
• and
• c) the heating panel is provided with installing grooves for the heating resistors on a lower surface thereof;
• and the heating resistors are uniformly distributed on the lower surface of the heating panel;
• some of the heating resistors are in circuit with respective temperature sensors.