Sheet extruder machine is one of the most typical processing machinery used for plastic compression forming or extrude molding. As processing machinery, running machine is mainly on the theroy of plastic thermoforming.In the production, it can produce various plastic products or plastic moulds.Plastic sheet extruder machine can make many kinds of products,like box, plastic cup, cup lid,plastic bowl and so on.These plastic producs widely applies to many fields,like fast food industry, packaging industry, logistic and the most common use is at home, some plastic cups and plastic bowls are alomost made by sheet extruder machine.     This machine has formed a certain plastic sheet production line, it contains main machine,cylinder,convey,tranction,cutting and rewinding,electric control.Although it has many constituent parts,but it is quiet easy in operation and the main representative of thermoforming machine.