Patent ID: 7631832

Claim:
A packing film stretching and rewinding machine comprising a machine table: and characterized by said machine table assembled thereon with a stretching device, a lip-folding device, a swing device and a rewinding device, said stretching device provided with a material-conveying rotary shaft, said material-conveying rotary shaft having one side disposed with a material press wheel, plural stretching-rotating wheels with different rotating speeds positioned above said material press wheel, plural guide wheels respectively set between every two of said stretching-rotating wheels and at the topside and the underside of said stretching-rotating wheel, a conveyer guide wheel positioned to one side of said stretching-rotating wheel, said machine table having an outer side provided with a transmission unit, said lip-folding device positioned above said stretching device, said lip-folding device disposed with two guide wheels, said two guide wheels having their opposite ends respectively fixed with a lip-folding plate, a conveyer roller located at one side of said guide wheel, said conveyer roller having topside mounted with a press wheel, said swing device assembled on said machine table, said swing device having an air pressure cylinder secured on said machine table, said machine table disposed with two opposite support frames, said air pressure cylinder having a push rod inserted through said machine table and fixed on one of said two support frames by means of a connecting plate, plural guide posts assembled between said two support frames, said rewinding device positioned above said swing device, said rewinding device provided with a feeding funnel, two opposite rotary disks fixed under said feeding funnel and positioned between said two support frames of said swing device, said two rotary disks provided with a rotating shaft and respectively fixed thereon with plural opposite clamping claws, a cutter and a collection frame respectively assembled under said two rotary disks.