Patent ID: 8807186

Claim:
A hot laminating apparatus, comprising: a main body comprising a first frame and a second frame, wherein said first frame and said second frame are opposed to each other; a first pressing roller, wherein two ends of said first pressing roller are pivotally coupled to said first frame and said second frame, respectively; a second pressing roller opposed to said first pressing roller, wherein two ends of said second pressing roller are pivotally coupled to said first frame and said second frame, respectively, wherein said first pressing roller and said second pressing roller are rotated in reverse directions, wherein when two thermoplastic films and a sheet article between said two thermoplastic films are transmitted through a region between said first pressing roller and said second pressing roller, said two thermoplastic films and said sheet article are laminated by said first pressing roller and said second pressing roller; at least one first heating element located beside said first pressing roller for providing heat energy to said first pressing roller; and at least one first bimetallic structure arranged between said at least one first heating element and said first pressing roller, wherein in response to said heat energy provided by said at least one first heating element, said at least one first bimetallic structure is subjected to deformation to allow said at least one first heating element to be away from said first pressing roller.