Fast lip opening device is JCtimes patent technology, since 2005. It was used for the manufacture sheet die to meet the client highly efficient needs.Compared with traditional die, the die with fast lip opening device on line lip gap adjustment can short time about 10 times.

Die is made up with the upper die and lower die. The openness between both die is depended the out thickness. Both upper and lower die can adjust the lip gap, but the wide range of adjustment is usually regulated by the lower die.
The traditional lower die have two structure, which is made up of lower die & lower lip, just off the machine to adjustment die lip gap with adjustment lower lip.The other method is lower lip & die is whole body,we couldn't adjust lower die,but fine adjusts upper lip,the range is very small.
Both their methods are complex.

In practice, we find below malpractice：

① mid die lip gap width, both side narrow

② mid die lip gap narrow,both side width

③ Die lip gap one side width, another side narrow.

In any case, it will affect the production, we will use the first data from practice to advanced the structure,then get the best solution. At first, adjust the structure of regulating rod, change the hard friction to needle type adjusting rod for reducing the friction make adjustment easy. Then, use the advanced device to adjust the process, the 5-axis whole machine center makes fast open zone integrated, but reduce the process link, upgrade the precision.