|
|
Sumitomo Heavy Industries Modern, Ltd. recently developed an automatic thickness profile control T-die system for film casting that is capable of adjusting an uneven thickness in a short time. The T-die (SMART FLIPPER) of this system adopts a mechanism that performs elastic deformation of the die-lip using the force generated by a pneumatic actuator. Our pneumatic drive system achieves an excellent lip deformation response time of a few seconds. In addition, it is unaffected by thermal environments. Therefore, the pneumatic drive system is capable of maintaining stable die-lip deformation, and achieves high repeatability. Since SMART FLIPPER has these advantages, the thickness profile control system containing SMART FLIPPER is capable of performing uneven thickness adjustment in a few minutes. This paper describes the features and functions of SMART FLIPPER, and reports an example of adjusting an uneven thickness using this thickness profile control system.
|
|
