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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.

Structure analysis lip of T-die

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.

Example of SPM display

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.

Both-sides operated die

Heat sleeve

Product Information

Injection Molding Machines

Die Casting Machine