Speed changing transmission mechanism of sheet laminating apparatus

A speed changing transmission mechanism of a sheet laminating apparatus for driving a hot press roller of said sheet laminating apparatus to laminate a sheet article at a first rotating speed or a second rotating speed, said speed changing transmission mechanism comprising:

• a speed changing module for controlling said hot press roller to rotate at said first rotating speed or said second rotating speed;
• a motor connected to said speed changing module for providing motive power required for driving said speed changing module;
• a switching gear connected to said speed changing module and rotated as said speed changing module is moved;
• a hot press gear comprising a first-layered gear and a second-layered gear;
• a first connecting gear engaged with said first-layered gear such that said hot press roller is rotated at said first rotating speed;
• and
• a second connecting gear engaged with said second-layered gear such that said hot press roller is rotated at said second rotating speed,
• wherein if said switching gear is engaged with said first connecting gear upon movement of said speed changing module, said motive power of said motor is transmitted to said hot press gear through said switching gear and said first connecting gear so that said hot press roller is rotated at said first rotating speed, and if said switching gear is engaged with said second connecting gear upon movement of said speed changing module, said motive power of said motor is transmitted to said hot press gear through said switching gear and said second connecting gear so that said hot press roller is rotated at said second rotating speed.