Abstract: In order to control, in a wire shaping apparatus with a rotatable wire intake device (10), friction of the wire at the bore wall of a wire holder (52) which finally leads the wire towards the shaping station, and in order to reduce it to zero if necessary, it is suggested to provide said apparatus, the wire holder (52) of which can be rotated programmably controlled about the wire axis, with a remote controllable wire brake device (114) which acts radially upon the wire being fed along, and the wire brake device is programmably controlled.

Abstract: Procedure and apparatus for the optimized manufacture of coil springs on automatic spring winding machines. It is the object of the present invention to offer both a procedure and an apparatus by which even in case of fluctuating values of the wire parameters high accuracies during the spring manufacture are guaranteed and simultaneously the scrap is minimized. The solution to this problem is that prior to the winding the wire parameters are determined and the measuring results are used directly for the adjustment of the position of the winding pins or winding rollers and/or the pitch wedge, and that the wire between the uncoiling device and the guiding assembly forms a loop whereby the lateral deflection of this wire loop is measured by a recognition unit and the uncoiling device carries out an additional movement controlled by the recognition unit.

Abstract: Apparatus for clamping and working wire pieces has two separate rotary shafts (16) of the clamping levers (18 and 20), arranged symmetrically and with the axis of intake of the wire (82) and the direction of upsetting or hammering at right angles to the axes of rotation of the levers and to the axis of the cam shaft (34), the said direction (82) intersecting the said shaft (34) and passing centrally between the two rotary shafts (16), and on the other hand in directly controlling the clamping levers (18 and 20) by frictional connection rising one or more than one cam (32) on the cam shaft (34) and one cam roller (30) for each cam, the said roller (30) being situated on the lever arm (26 or 38) remote from the tools, the frictional connection being provided by a frictional connection maintaining device (54) which keeps the roller (30) in contact with the cam (32).

Abstract: This invention relates to an apparatus for the forming of wire, namely a leg or spiral spring winding and bending machine.It is an object of the present invention to reduce the expenditure for the production of the apparatus and to universalize the forming operations which can be carried out with each tool.The apparatus including a plurality of tools (86, 88, 90, 92 or 142; 162, 190, 192) on a tool holder (74; 160) which is fixed at the free end of a longitudinally displaceable shaft (12) resembling the known winding spindle and is replaceable. Every existing tool can be brought into the pathway of the wire and hence into operation by positioning the shaft by rotation and longitudinal displacement by means of a drive which is known from the conventional winding spindle but differently controlled.The advantage of this apparatus is that it is of simplified construction and enables the same tools to be used for producing different forms of springs.

Abstract: A positioning device for arranging elongated workpieces, such as wire pieces which are to be worked up into headed nails, and the use of such a device in a wire-working machine, includes at least one positioning tool for displacing at least one workpiece in its axial direction by a predetermined distance. The tool is a rigid body which is displaceable parallel to its longitudinal direction. The positioning device may include an additional positioning tool to push the workpieces slightly backward, to compensate for any tolerances in the nominal length of the workpieces of each batch of workpieces.

Abstract: The chain links are bent in a single bending station, using a single mandrel. Pieces of wire of a given uniform length are bent into a V-shape between a holder and a suitably shaped recess in the mandrel. A wire feed sleeve and a wire receiving sleeve are disposed opposite one another defining a wire path between the holder and mandrel. Wire guides having guide surfaces guide the wire in its feed path from the feed sleeve to the receiving sleeve. The receiving sleeve has an abutment member provided with a support surface which, with the feed sleeve, prevents the leading and trailing ends of the wire piece from moving in a direction perpendicular to the direction of wire feed during the V shape bend. The two sleeves, each of which is formed together with a bending tool, are then retracted to free the wire ends, and the bending tools are moved perpendicular to the wire feed direction to bend the wire ends around the mandrel into a C-shape.