Continuous horizontal packaging machine and package opening device thereof

A continuous horizontal packaging machine suitable for forming a continuous folded film material into a plurality of packages, for filling each of the packages with a filling material, and for sealing each of the packages filled with the filling material, said continuous horizontal packaging machine comprising a horizontal packaging system, said horizontal packaging system including:

• a base having a feed end, and a discharge end opposite to said feed end in a horizontal direction;
• a clamping and moving device disposed on said base and including two roller shafts extending in a height direction perpendicular to the horizontal direction, said roller shafts being rotatable in opposite directions to clamp therebetween the folded film material and being configured to intermittently move the folded film material in the horizontal direction;
• a vertical sealing device disposed on said base and located between said feed end and said clamping and moving device, said vertical sealing device including two side heating blocks extending in the height direction, said side heating blocks being relatively movable toward each other in a transverse direction perpendicular to the horizontal direction and the height direction for hot pressing lateral sides of the folded film material;
• a film cutting device disposed on said base and located between said clamping and moving device and said discharge end, said film cutting device being configured to cut the folded film material to form the packages;
• a package receiving device configured to drive the packages to intermittently move in the horizontal direction and including two slide seats spaced apart in the transverse direction and extending in the horizontal direction, and a driven rod interconnecting said slide seats and configured to drive said slide seats to move toward or away from each other in the transverse direction so as to clamp or release the packages, said slide seats being further driven to move back and forth in the horizontal direction for conveying the packages;
• a package opening device disposed on said base and located between said film cutting device and said discharge end, said package opening device being configured to open each of the packages and including
• an upper package opening unit having two upper suction members relatively movable in the transverse direction,
• a squeezing unit having two pushing blocks relatively movable in the horizontal direction, and
• a lower package opening unit having two lower suction members relatively movable in the transverse direction and lower than said two upper suction members in the height direction;
• a filling device disposed on said base and located between said package opening device and said discharge end, said filling device being configured to fill each of the packages with the filling material;
• and
• a top sealing device disposed on said base and located between said filling device and said discharge end, said top sealing device including two top heating blocks relatively movable in the transverse direction for hot pressing a top end of each of the packages.