Device for finely cutting workpieces from a material
AssigneeFeintool International Holding AG
InventorsErnst Rytz, Hans-Rudolf Gubler
Life of this patent
Estimating the term…
Abstract
A device for finely cutting workpieces from a material, which includes a press plate which is subjected to the pressure of a knife-edged ring cylinder consisting of a knife-edged ring and a clipping punch which is guided in the pressing plate, and associated with a blanking die with a counter holder (ejector) on a tappet, whereby the tappet is placed against at least one compensation cylinder which is hydraulically connect to the knife-edged ring cylinder.
Claims6
An apparatus for fine blanking of workpieces from a material (1), comprising:
- a press plate (10) having a V-ring (11), which is under pressure from a V-ring cylinder (13) comprising a V-ring piston rod (15) connected to a V-ring piston (12) disposed opposite to and in support of the V-ring (11) of the press plate (10), and
- a blanking punch (9) which is guided in the press plate (10) and to which a die plate (17) with counterholder (16) is assigned at a ram (7), wherein the ram (7) is supported against at least one compensation cylinder (22) and against at least one main cylinder (19.1, 19.2), and wherein the at least one compensation cylinder (22) is hydraulically connected to the V-ring cylinder (13) through a hydraulic connection (25) and is in hydraulic equilibrium with the V-ring cylinder (13), said hydraulic connection (25) also having a connection (26) to an oil tank via a logic valve (27).
An apparatus for fine blanking of workpieces from a material, comprising:
- a press plate having a V-ring;
- a blanking punch guided in said press plate;
- a ram comprising a die plate opposed to said press plate and a counterholder opposed to said blanking punch;
- a V-ring cylinder connected to said press plate;
- at least one compensation cylinder connected to said ram, wherein said V-ring cylinder is in hydraulic equilibrium with said compensation cylinder, and the at least one compensation cylinder is hydraulically connected to the V-ring cylinder through a hydraulic connection, said hydraulic connection also having a connection to an oil tank via a logic valve;
- and
- a main cylinder connected to said ram.
Dependencies are inferred from the claim text.