文档介绍：Wide varity binations
two different clearances between tie bars
Clamping force
Distance between tie bars
Pump
Injection unit
Screw
Drive
each with three different plasticizing cylinders
three different injection units
Modular System for Ergotech 250 up to kN
Name of the Ergotech Machines
ergotech
80
/ 430
- 310
system
Function Groups of the Ergotech Machine 250 up to
Clamping unit
Machine base
Injection unit
Control
Drive
Function Groups of the Ergotech Machine up to
Clamping Unit with 5-Point-Double-Toggle
Mould opened
Mould closed
Ergotech 250 up to kN - Features of the Clamping Unit
Two clamping pistons for moment free force input
High clearance between tie bars
High reliability due to only two dynamic sealing points
Movements with controlled braking and accelerating functions
Standard design suitable for clean room applications
Minimum power consumption due to innovative multiplier system
Force and Speed Profile of Five-Point Double Toggle Clamp System
Mould opening stroke, mm
closed
opened
Force, kN
Speed, mm/s
Spring Constancy: Force / Deformation Diagram
Deformation
Force, kN
LS
F1 - Clamping force
F3
F2 - Reactive force
F3 - Zuhaltereserve
LW
LR
LS - Tie bar elongation
LW - Mould jolt
LR - resultierende Verformung
F1
F2
cS
cW
cS ,cW - Spring characteristics clamp, Mould
Ergotech 250 up to kN - Principle of the Clamping Unit: Mould Closing Movement
Closing
Ergotech 250 up to kN - Principle of the Clamping Unit: Mould Locking (Built-up of Clamping Force)
F