SPU / Sheet Manufacturing Thickness Profile Control System

AUTOMICRON Thickness profile control system (SPM)

Combined with an automatic T-die, it is used on the high-performance production line.

Functions

Thickness gage

It is possible to choose an optimized thickness gage among the gages including an infrared-ray thickness gage, X-ray thickness gage, β (beta)-ray thickness gage and laser thickness gage etc.

Automatic T-die

• Thermal differential type:
  With increase in heat sleeve temperature, lip clearance will widen. Used when resin viscosity is susceptible to temperature.
• Thermal direct-acting type:
  With increase in heat sleeve temperature, lip clearance will reduce.
• Both-side operated type:
  double-bending type T-die with one-side operated manually and the other side operated automatically can also be used. Thus, backlash caused at forward and backward motions can be eliminated.

Features of control

• Temperature is controlled by means of a thermo-sensor of the heat sleeve, and lip clearance is adjusted by changing this set temperature. Thus, effect of external disturbance is little caused with stabilized control and better repeatability.
• Rigidity of T-die lip is calculated by structural analysis to figure out the optimal lip manipulated variable.
• Profile data and adjust bolt position are calculated precisely.

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