US 4,013,261 AGranted

Device for producing work pieces perforated by means of electron beams

AssigneeSteigerwald Strahltechnik GmbH

InventorsKarl Heinz Steigerwald, Dietor Konig, Wilhelm Scheffels, Klaus Glieneck

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Abstract

A device for producing work-pieces, in particular foil blanks perforated by means of electron beams, for example for shoe upper parts, with an electron beam work chamber which can be evacuated, input and output appliances placed outside the work chamber for the input of unperforated work-pieces or the output of perforated work-pieces, and a transport appliance with a transport track extending between the input and output appliance and the work chamber across air locks for the controlled transport of work-piece carriers, to which the work-pieces can be applied in predetermined positions, wherein in a given work area within the work chamber a work-piece carrier which forms an element of a series of work-piece carriers lying in the transport track can be moved in at least one work track lying outside the positions of the adjacent work-pieces in the series, relative to a beam source that the work-piece can be perforated at several points by means of the beam source.

Claims30

Dependent claims

A device for perforating foil blank work pieces with an electron beam comprising:

an electron beam source;
an evacuatable electron beam work chamber coupled to said electron beam source for receiving the electron beam in a work area;
input and output gating means for said work chamber providing entrance and exit of the work pieces to and from the chamber, said gating means including air locks for maintaining the evacuation of said chamber;
a transport appliance having a transport track extending through the work area of said chamber at a location removed from said electron beam, across said air locks and between said input and output gating means;
a plurality of work piece carriers for receiving the work pieces in a predetermined position, said work piece carriers being adapted to be serially transported on said track and to be detachable therefrom;
and
transport control means for displacing the work piece carriers from said track at said work area for placing said work pieces in said electron beam for perforating the work pieces.

4 more elements

Dependencies are inferred from the claim text.