机器结构及螺杆.ppt

Folie Nr. 1 Ergotech 250 up to 1.100 kN - Features of the Clamping Unit Ergotech 250 up to 1.100 kN - Principle of the Clamping Unit:Mould Closing Movement Ergotech 250 up to 1.100 kN - Principle of the Clamping Unit: Mould Locking (Built-up of Clamping Force) Ergotech 250 up to 1.100 kN - Principle of the Clamping Unit: Holding the Clamping Force (Optional) Ergotech 250 up to 1.100 kN - Principle of the Clamping Unit:Mould Opening Movement Ergotech 250 up to 1.100 kN - Features of the Injection Unit Wide varity of combinations 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 20.000 kN Name of the Ergotech Machines ergotech 80 / 430 - 310 system Function Groups of the Ergotech Machine 250 up to 1.100kN Clamping unit Machine base Injection unit Control Drive Function Groups of the Ergotech Machine 1.250 up to 4.000kN Clamping Unit with 5-Point-Double-Toggle Mould opened Mould closed 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 characteristicsclamp, Mould Closing F ? F = const. Opening L : D - ratio for all standard screws = 20 : 1 Wear resistant design of cylinders and screws in standard Mechanical and electrical fast coupling systems Automatic cylin