US 5,446,254 AGranted

Process and installation for producing reinforcement wire meshes

AssigneeEVG Entwicklungs- u. Verwertungs-Gesellschaft m.b.H.

InventorsKlaus Ritter, Gerhard Ritter

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Abstract

A process and installation for producing reinforcement wire meshes by welding longitudinal and transverse wires (L, Q) together at their crossing points, leaving ends (E) or the transverse wires projecting beyond the longitudinal edge wires using a continuous wire meshes welding machine, in which, in order to produce reinforcement wire meshes where at least one of the projecting ends or the transverse rods is bent back towards the longitudinal edge wire in the form or a loop and welded thereto, straight transverse wires are supplied, at least one of the ends in front of the weld line of the wire meshes welding machine is bent back in the form of a loop towards the longitudinal edge wire (L') and the loop end (S) is welded to the longitudinal edge wire in the weld line (C) at the same time as the longitudinal and transverse wires are welded together.

Claims20

Dependent claims

A process for producing reinforced wire mesh from a number of longitudinal (L, L') and transverse (Q.sub.1, Q.sub.2) wires welded to each other at crossing points of the mesh and having transverse wire end pieces (E) extending beyond longitudinal edge elements,

wherein at least one of the projecting transverse wire end pieces (E) is bent back in the mesh plane in the shape of a loop (S) with respect to the longitudinal edge elements and is welded to at least one of the longitudinal wires, using a continuously operating wire mesh welding machine,
comprising the steps of
conveying straight transverse wires (Q.sub.1, Q.sub.2) having said projecting end pieces (E) across said longitudinal wires (L, L') and locating said wires in a feed line (A--A);
then bending back at least one of the transverse wire end pieces (E) projecting beyond at least one of the longitudinal edge elements in the form of the loop (S) with respect to the longitudinal edge element at a bending line, located ahead of a welding line (C--C) of the wire mesh welding machine;
and
subsequently welding, at the welding line (C--C), the transverse wires (Q.sub.1, Q.sub.2) to the longitudinal wires (L, L'), as well as the end of the loop (S) to at least one of the longitudinal wires (L, L') and optionally to at least one edge element (L') of the longitudinal wires, simultaneously with the welding of the longitudinal and transverse wires;
and
wherein the welding line (C--C) and the feed line (A--A) are offset from each other in the direction of the longitudinal wires (L, L').

5 more elements

An installation for producing reinforced wire mesh from a number of longitudinal (L, L') and transverse (Q.sub.1, Q.sub.2) wires comprising

a device (1) for conveying and feeding the longitudinal wires (L, L'), two of which define longitudinal edge elements (L'), in a longitudinal wire feed direction along a wire feed path (P.sub.1);
transverse wire conveying means for conveying the transverse wires (Q.sub.1, Q.sub.2) across said longitudinal wires, said transverse wires having at least one end piece (E) projecting at least at one side beyond a first longitudinal end element (L') of the longitudinal wires (L, L') and placing said transverse wires in a feed line (A--A), extending transversely to the direction of the longitudinal wire feed path;
and
a resistance welding device (15) for welding the transverse wires (Q.sub.1, Q.sub.2) to the longitudinal wires (L, L'),
a bending device (11) for bending at least one of the transverse wire end pieces (E) projecting beyond the first longitudinal edge element (L') into a loop (S, S') located at a bending line (B--B) downstream of the feed line (A--A), in the longitudinal wire feed direction;
transverse wire positioning means (10) for moving the transverse wires (Q.sub.1, Q.sub.2), provided with the loop (S, S') to the resistance welding device (15), said resistance welding device (15) being located at a welding line (C--C) associated with said loop bending device (11);
and
wherein the resistance welding device (15) has a welding head (18, 19) in the area of at least one of the longitudinal edge elements (L') for welding the associated bent-back loop ends (S, S') to at least one of the longitudinal wires (L), and optionally to at least one longitudinal edge element (L').

5 more elements

Dependencies are inferred from the claim text.