Plastic mold template work movement speed is changing. Clamping move when the velocity changes, is rapidly nearer the fixed template first, then slow speed and fixed forming dies and moulds; Mould mobile work, is to slowly open mould first, and then quickly removed, the slow stop, fast speed of mobile template, for 20 - commonly 35 m/min, slow speed of mobile template, general is 0. 3 - 3m/min。 Mobile template with fast speed, it is in order to shorten the sheet products production cycle; Slowly open the mold in order to protect the products make it not damaged; When clamping of the slow speed, is to make two pieces of mold can close smooth, accurate, avoid loss in plastic mold.