Pressing head, device for pressing material to be pressed, and method for pressing material to be pressed
AssigneeRuf Maschinenbau GmbH & Co. KG
InventorHans RUF
Life of this patent
Estimating the term…
Abstract
A pressing head (100) for a device for pressing material to be pressed, e.g., an extrusion press for pressing chips. The pressing head (100) comprises at least two pressing channels (1, 1′), each having an inlet opening (11, 11′) and an outlet opening (12, 12′). Each pressing channel (1, 1′) has a stationary supporting element (2, 2′) and a movable pressing element (3, 3′). The pressing element (3, 3′) is movable on one side, preferably relative to the supporting element (2, 2′). A cross-section (QA) of the pressing channel, at the outlet opening of the pressing channel, can be varied relative to the cross-section (QE) of the pressing channel, at the inlet opening of the pressing channel.
Claims27
1-19. (canceled)
A pressing head, for an apparatus for pressing material to be pressed, comprising:
- at least two pressing channels each with one inlet opening and one outlet opening,
- wherein each pressing channel has a supporting element and one movable pressing element, the pressing element is movable, on one side, in such a way that a cross section of the pressing channel, at its outlet opening, is changeable relative to a cross section of the pressing channel, at its inlet opening.
A method for pressing material to be pressed with an apparatus for pressing material to be pressed comprising the steps:
- feeding of material to be pressed,
- pressing of a first portion of the material to be pressed through a pressing channel by way of a first pressing stroke from a starting position by a forward movement in a direction of a longitudinal axis of the pressing channel of a pressing plunger,
- holding of the pressed first portion of the material to be pressed in the pressing channel by a movable pressing element,
- returning the pressing plunger back into the starting position,
- feeding of a second portion of material to be pressed,
- pressing of the second portion of the material to be pressed by way of a second pressing stroke of the pressing plunger,
- wherein the pressing force on the second portion of the material to be pressed is adjusted by the movable pressing element.
Dependencies are inferred from the claim text.