Automatic bagging machine using cool-shrinking film

An automatic bagging machine using cool-shrinking film bags comprising a machine body, a bag conveying device, a bag sealing device, a bag sucking device and a bag supporting device combined with said machine body, said bag conveying device and said bag sealing device fixed on an upper side of said machine body for conveying continual cool-shrinking bags down and sealed and cut in due time, further a transporting device provided just below said machine body to transport products together with a storing plate in and out of said machine body;

• and characterized by, said bag sucking device consisting of a left sucking unit and a right sucking unit of the same structure, said left and said right sucking units having respectively a first and a second air suckers fixed on a slide rod in an opposite position, a roller unit respectively fixed with two ends of said slide rods of said left and said right sucking units and being laid astride on a guide rod provided on the upper side of said machine body, said slide rod of said right sucking unit having one end fixed with an other end of a pull air pressure cylinder fixed on said machine body, said left and said right sucking units moving nearer to each other or farther away from each other on said guide rod by means of chains at the same time;
• an air pressure cylinder of a position air pressure cylinder unit respectively fixed behind each said air sucker, each said air pressure cylinder having a piston rod with its outer end pivotally connected to a swaying arm pivotally connected to each said air sucker said swaying arm having an other end fixed with a pressing rod, said pressing rod being moved inward when said each air pressure cylinder operates;
• said bag supporting device consisting of a left first, a left second, a right first and a right second support operating unit respectively fixed on an elevating frame, each said elevating frame having two ends provided with a slide base on said rails of said machine body, each said elevating frame connected to a power source by means of a chain, said power source moving up and down said elevating frames and said support operating units;
• said left first, said left second, said right first and said right second support operating unit respectively consisting of a base, an extension arm and a bag close operating unit, each said base fixed on each said elevating frame, a motor fixed at one side of each said base, each said motor extending or retreating each said extension arm in due time, each said extension arm having an other end connected firmly to a vertical supporting plate, each said supporting plate having a through hole in an intermediate portion near an upper side for pivotally connecting a rolling shaft;
• each said bag close operating unit fixed on an upper side of said each base, said operating air pressure cylinder of each said bag close operating unit fixed on each said base, an other end of each said operating air pressure cylinder connected firmly to each said bag closing motor, a compress wheel fixed with an output shaft of each said bag closing motor, each said compress wheel compressing each said rolling shaft of each said supporting plate of each said extension arm;
• said press rods of said position air pressure cylinders compressing for corners of a bag for packaging when said air suckers sucking and sticking to said bag body conveyed out of said bag conveying device, said press rods then expanding outward said bag to keep said bag from falling down in expanding process;
• said bag supporting device keeping on sending a certain length of said bag and hold it on bottoms of said supporting plates by means of said compress wheels said bag expanded to the maximum size when said extension arms are retreated, and said expanded bag gradually released to cover and surround said products and said storing plate during descending of said bag supporting device.