Verfahren zum Herstellen von geschweissten Drahtgittern und Gitterschweissmaschine zum Ausueben dieses Verfahrens

摘要

1,115,829. Welding by pressure. E V G ENTWICKLUNGS-U-VERWERTUNGS G.m.b.H. 24 Nov., 1966 [7 April, 1966], No. 52706/66. Heading B3R. In making wire mesh by welding continuous longitudinal wires to transverse wires in cut lengths at their crossing points, the transverse wires being introduced at insertion points and conveyed with the longitudinal wires to welding points, mesh of a standard transverse wire spacing is produced by inserting two transverse wires simultaneously conveying them a distance of twice the standard spacing to the welding points and welding them simultaneously, while mesh of different spacing is formed by inserting and welding transverse wires one at a time. The conveyer consists of spaced rails 1 having hooks 27 or notches 28 for engaging the transverse wires 30 and connected at their forward ends by a beam. The beam is reciprocated by a crank pin 19 and is moved angularly by a cam 18 the connecting linkage being such that the rear ends of the rails 1 move through an orbital path. For welding standard mesh, pairs of transverse wires 30 in insertion guides 31 having covers 32 removed periodically are picked up by the rails 1 and are conveyed to the welding points, the rails 1 moving the welded mesh at the same time. Welding is effected by active electrodes 39 on supports 37, 38 connected to positive and negative bus-bars 35 and passive electrodes 41 connected by current bridges 40. A common housing 42 supported by pivoted arms 48 and adjustable parallel to the longitudinal wires by handles 52 is reciprocated by eccentrics 50 and is connected by springs 44 with vertically slidable stirrups 43 carrying pins 46 to which the spring clips 47 on the bridges 40 may be attached. For welding non-standard mesh a separate welding electrode line may be used or two of the active electrodes 39 are used and the bridges 40 are replaced by bridges 40a each having one electrode 41 which does the welding and a forked connector 41a having curved ends which engage an electrode 39 to complete the welding circuit. The location of the housing 42, the bridges 40a or the location of one of the insertion guides is selected or adjusted to provide the required mesh spacing. The stroke of the rails 1 is adjusted, e.g. by an adjustable connection in the connecting rod 20.