The utility model relates to the technical field of
thermal shrinkage packaging equipment, in particular to a sealing and
cutting thermal shrinkage packaging machine with a rear knife rest, which comprises a main body part, a front conveying line, a rear conveying line, a film
cutting part, a longitudinal sealing component, a waste film winding component and a film guiding part, the film
cutting part comprises a T-shaped frame, a lifting plate, a vertical mounted bearing, a sealing cutter upper
assembly, a sealing cutter lower
assembly, a
servo transmission shaft, a sealing cutter lower bolt
assembly, a cutter rest outer frame
welding part, a cutter rest inner frame
welding part, a sliding bearing seat, a sealing cutter guide frame rod, a
servo driving chain wheel, a second supporting assembly, a motor mounting
metal plate, a
servo motor, a motor synchronous belt wheel and a wheel shaft seat pulling plate. According to the packaging film sealing and cutting device, the servo transmission assembly in the film cutting part is arranged, servo transmission control is conducted on the sealing cutter upper assembly and the sealing cutter lower assembly through the chain, so that a packaging film is sealed and
cut, the height capable of passing through a product is greatly increased, and then the effect of increasing the sealing and cutting height is achieved.