Film packing device

Abstract

A film packing device for a roll of film having or not having a reel includes a handle. Two ends of the handle are provided with a coupling rod and a base, respectively. The coupling rod is provided with a quick-release unit. The base is provided with a limit unit. The quick-release unit and the limit unit are selectively mounted with a first film application unit and a second film application unit. Through the first film application unit, the film packing device can be mounted with a roll of film having a paper reel. Through the second film application unit, the film packing device can be mounted with a roll of film not having a paper reel. The film packing device can be replaced with different types of film in a simple and quick way.

What is claimed is: 
     
         1 . A film packing device, comprising:
 a handle having two ends being provided with a coupling rod and a base respectively, the coupling rod being provided with a retaining member, the retaining member having a first retaining portion and a second retaining portion, the base being provided with a limit unit, the limit unit comprising a first limit portion and a second limit portion; and   a second film application unit, the second film application unit comprising an axial rod, the axial rod comprising a first positioning portion and a second positioning portion corresponding to the first retaining portion and the first limit portion respectively;   thereby, through the second film application unit, the film packing device being mounted with a roll of film not having a paper reel.   
     
     
         2 . The film packing device as claimed in  claim 1 , wherein the coupling rod being provided with a quick-release unit, the quick-release unit comprising an elastic member and the retaining member, the elastic member elastically holding against the retaining member. 
     
     
         3 . The film packing device as claimed in  claim 1 , wherein the first retaining portion is a retaining trough, the retaining member being formed with a bottom surface, the second retaining portion being a retaining screw hole disposed on the bottom surface, the first retaining portion having an inner diameter greater than that of the second retaining portion. 
     
     
         4 . The film packing device as claimed in  claim 3 , wherein the first limit portion is a limit screw hole and the second limit portion is a limit block, one end of the limit block being screwed to the limit screw hole, another end of the limit block extending out of the base;
 wherein the first positioning portion is a positioning protrusion, and the second positioning portion is a positioning recess;   wherein the first fixing portion and the second fixing portion are screws.   
     
     
         5 . The film packing device as claimed in  claim 1 , further comprising a roller unit, the roller unit being pivotally connected between the base and the coupling rod, the roller unit comprising a first roller and a second roller, two ends of the first roller and the second roller being provided with a first gear assembly and a second gear assembly respectively, the first gear assembly meshing with the second gear assembly, the first gear assembly comprising a first axle gear, the first axle gear being fixed to one end of the first roller, an outer toothed portion of the first axle gear meshing with an inner toothed portion of a drive gear, the second gear assembly comprising a second axle gear, the second axle gear being fixed to one end of the second roller, an outer toothed portion of the second axle gear meshing with an inner toothed portion of a reduction gear, an outer toothed portion of the reduction gear meshing with an outer toothed portion of the drive gear. 
     
     
         6 . The film packing device as claimed in  claim 5 , wherein at least one of an outer wall of the first roller and an outer wall of the second roller is provided with a tension judgement member, the tension judgement member being a pattern, the pattern being selected from one of a convex pattern and a concave pattern or a combination thereof. 
     
     
         7 . The film packing device as claimed in  claim 5 , wherein outer sides of the first roller and the second roller are provided with a casing respectively, the roller unit further comprising a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod being disposed in the first roller and the second roller respectively, the first connecting rod and the first roller being coaxial, the second connecting rod and the second roller being coaxial, one of the two ends of the first connecting rod being provided with an adjustment knob, the other of the two ends of the first connecting rod being fixed to the base, the two ends of the second connecting rod being pivotally connected with the coupling rod and the base respectively. 
     
     
         8 . The film packing device as claimed in  claim 5 , wherein the number of teeth on the reduction gear is greater than that of teeth on the drive gear. 
     
     
         9 . The film packing device as claimed in  claim 1 , wherein the handle has a grip, two ends of the grip being provided with two curved pipes, the curved pipes being connected with the coupling rod and the base, respectively. 
     
     
         10 . A film packing device for a roll of film having or not having a reel, comprising:
 a handle having two ends being provided with a coupling rod and a base respectively, the coupling rod being provided with a retaining member, the retaining member having a first retaining portion and a second retaining portion, the base being provided with a limit unit, the limit unit comprising a first limit portion and a second limit portion;   a first film application unit, the first film application unit comprising a first film seat and a second film seat, the first film seat and the second film seat being disposed oppositely, the first film seat comprising a first fixing portion corresponding to the second retaining portion, the second film seat comprising a second fixing portion corresponding to the limit unit; and   a second film application unit, the second film application unit comprising an axial rod, the axial rod comprising a first positioning portion and a second positioning portion corresponding to the first retaining portion and the first limit portion respectively;   thereby, through the first film application unit, the film packing device being mounted with a roll of film having a paper reel, through the second film application unit, the film packing device being mounted with a roll of film not having a paper reel.