WAFIOS AKTIENGESELLSCHAFT Patent applications |
Patent application number | Title | Published |
20140318334 | CUTTING SYSTEM FOR WIRE PROCESSING MACHINES - A wire processing machine having a cutting system, including a knife holder which carries a knife cooperating during a cut with a stationary counter-blade tool and is connected for performing a reciprocating motion by connection to an eccentric pin or a cam disk of a crankshaft driven by an electric motor, the knife holder sliding in a guide during its reciprocating movement, the guide arranged in a stationary manner or pivoting freely about an axis parallel to the rotational axis of the crankshaft in the case of a rigid connection, the crankshaft being driven directly by an asynchronous motor to which a gyrating mass is connected whose kinetic energy is released as a cutting force upon impingement of the knife on the wire, with the asynchronous motor performing precisely one rotation per cutting cycle and being accelerated up to the start of the cut and braked after the cut. | 10-30-2014 |
20140000335 | BENDING HEAD FOR BENDING ROD- AND PIPE-SHAPED WORKPIECES | 01-02-2014 |
20130270385 | APPARATUS FOR FEEDING WIRE TO WIRE PROCESSING MACHINES - An apparatus for feeding wire to wire-processing machines, in which the wire is drawn off from a pay-off reel holding a wire coil and rotatable about a spindle and fed to a wire feeder upstream of the wire-processing machine, wherein at least one wire-deflecting device, via which the wire drawn off from the pay-off reel is guided and released towards the wire feeder, is connected downstream of the pay-off reel in the wire draw-off direction, and wherein a wire-storage device is provided upstream of the wire feeder, this apparatus presents a guide path, forming a closed circuit, on which the wire runs and the diameter of which can be altered between a smaller value corresponding to an inner radial position of the guide path and a larger value corresponding to an outer radial position of the guide path, wherein the guide path is spring-pretensioned towards the outer radial position. | 10-17-2013 |
20130008223 | BENDING APPARATUS FOR ROD-SHAPED WORKPIECES - A bending device for rod-shaped workpieces having a bending head with a mandrel rotatable about a rotation axis, a cutting device for cutting the respective workpiece in a cutting plane, and a feed and straightening device for feeding the workpieces to the bending head, the cutting device capable of being moved along a travel path in the feed direction of the workpieces, with the bending head capable of being shifted between an operating position in which it is moved towards the workpiece and an inactive end position remote therefrom, the bending head, in order to assume its operating position, can be moved into the travel path of the cutting device, whereas, when assuming its inactive end position, it is positioned outside the travel path of the cutting device, and, when the bending head is situated in its inactive end position, the cutting device can be moved downstream on its travel path at least partly over the area of the operating position of the bending head. | 01-10-2013 |
20110247717 | DEVICE FOR PRODUCING A LOOP ON ONE END OF A COIL SPRING - A device for producing a loop at the end of a coil spring has a gripping unit with gripper jaws for retaining the spring in a processing position. The gripping unit is movable to and from the processing position and at least one section of an end turn of the spring protrudes over the gripper jaws. A first slewing gear has an output shaft and a coupling section for detachable coupling of a tool for the forming of a loop on the spring through upward bending of the end turn section protruding over the gripper jaws. A counter block attached laterally to the travel direction of the gripping unit is movable over the section of the end turn of the spring protruding over the gripper jaws and has a bending edge as a bending form for producing a loop with the tool. | 10-13-2011 |
20110226885 | DEVICE FOR CONTROLLING THE DRIVE OF A REEL - With a device for controlling the drive of a reel, with a wire supply in the form of a coil of said wire supply, from which the wire, through interposition of a tensioning device, which is spring-pretensioned in one deflection direction and effective up to a maximum deflection, for approximated stabilization of the wire tension of a feed installation of the wire infeed of a downstream positioned wire processing machine, the velocity curve of the feed rate of the wire infeed in accordance with a preset velocity-time profile is controlled by a control unit of the wire processing machine, and whereby the curve of the rotation speed of the reel in accordance with a preset rotation speed-time profile is controlled by the drive control of the reel, whereby the drive control of the reel sets the rotation speed-time profile of the reel, with regard to the velocity-time profile of the feed rate, forward by a preset time interval. | 09-22-2011 |
20110016941 | ARRANGEMENT FOR BENDING TUBULAR WORKPIECES - In an arrangement for bending tubular workpieces, in which a workpiece is supplied to a bending head for bending and is supported from the inside during the bending process in the bending region by means of a mandrel introduced into the workpiece, with the mandrel comprising a mandrel element and a traveler, sitting movably in the workpiece and the traveler being longitudinally displaceable in the workpiece by means of a feed device ( | 01-27-2011 |
20100307213 | BENDING APPARATUS FOR ROD-SHAPED WORKPIECES - In a bending apparatus for rod-shaped workpieces, comprising a machine frame to which a bending head with bending tools is attached, which bending head is movable relative to the frame, further a feed device upstream of the bending head for feeding the workpieces to the same, and a cutting device which can be displaced in the direction of feed of the workpieces and can be applied between bending head and feed device to the respective workpiece for cutting the same, the feed device can also be displaced in the direction of feed of the workpiece in addition to the cutting device, which occurs independent of the displacement of the cutting device. | 12-09-2010 |
20100300254 | CUTTING SYSTEM FOR WIRE PROCESSING MACHINES - A wire processing machine having a cutting system, comprising a knife holder which carries a knife cooperating during a cut with a stationary counter-blade tool and is connected for performing a reciprocating motion by connecting means to an eccentric pin or a cam disk of a crankshaft, which on its part is driven by an electric motor, with the knife holder sliding in a guide during its reciprocating movement, which guide is arranged in a stationary manner or can be pivoted freely about an axis parallel to the rotational axis of the crankshaft in the case of a rigid connection of connecting means and knife holder, the crankshaft is driven directly by an asynchronous motor to which a gyrating mass is connected whose kinetic energy is released as a cutting force upon impingement of the knife on the wire, with the asynchronous motor performing precisely one rotation per cutting cycle and being controlled in such a way that it is accelerated up to the start of the cut and is braked after the cut has been performed. | 12-02-2010 |
20100300173 | HEADING DEVICE - In a heading device for elongate workpieces having a hydraulic chucking unit and an shaping ram, which is movable axially from a retracted idle position against the workpiece, the chucking unit comprises a housing having a sliding body which is hydraulically displaceable in the axial direction of the workpiece from a starting position into a clamping position (and vice versa), in which at least two chucking segments which are situated uniformly around the workpiece are inserted, which, on their side facing toward the shaping ram, press against a locking plate which is inserted into the housing and can be fixed therein, are movable radially against the workpiece by a displacement of the sliding body in its clamping position, and each receive at least one clamping jaw, which can be pressed by the chucking segment holding it radially against the workpiece for its clamping. The shaping ram carries a forming tool for upsetting the workpiece on the extension side, using which it can be pressed against the head of the workpiece protruding axially from the clamping jaws upon extension through an opening provided in the locking plate, and is moved completely out of the opening in the locking plate with its forming tool in its retracted idle position. | 12-02-2010 |
20100180653 | ROTARY-DRAW BENDING DIE WITH ECCENTRIC CLAMPING - In a rotary-draw bending die with eccentric clamping for bending elongate workpieces such as pipes, wires, profile strands or the like, comprising a twistable bending mandrel, a clamp die which is associated with said bending mandrel, can be moved relative to the same and can be brought from an opened position remote from the same in which a workpiece to be bent can be inserted between bending mandrel and clamp die to a clamping position on the bending mandrel or vice-versa and is freely twistable about a swivel axis which is offset eccentrically in relation to the rotational axis of the bending mandrel, which swivel axis is disposed on a rotary plate which is rotatable relative to the bending mandrel, the clamp die is freely twistable about the swivel axis and can be moved between its clamping position and its opened position by twisting the rotary plate relative to the bending mandrel. | 07-22-2010 |
20100095732 | SUPPORT JAW ARRANGEMENT FOR SLIDING LATERAL SUPPORT OF ROD-SHAPED AND TUBULAR WORKPIECES IN BENDING MACHINES - A support jaw arrangement for sliding lateral support of rod-shaped and tubular workpieces prior to their entrance into a forming groove of a bending head of a bending machine. The support jaw arrangement includes two support jaws, one on each side of the workpiece. Each support jaw is fastened on a holder to a support bracket which, guided in a longitudinally displaceable manner on a guide block, is displaceable by a drive device from an initial position retracted against the direction of transport of the workpiece parallel to the same, to an end position extended in the direction of transport of the workpiece. One support jaw supports the workpiece in a laterally sliding manner in a region from its tangential entrance into the forming groove, up to a point at a predetermined distance in front of the same while the other support jaw assumes a retracted initial position. | 04-22-2010 |
20090007619 | WIRE-FORMING MACHINE - A wire-forming machine, comprising a machine frame, a wire feeder and a wire guide for transporting wire to a working area of the machine where the wire is processed by one or more tools. The tools are affixed on a tool plate on the machine frame and around a recess formed in the plate. A wire is fed through the recess to the working area of the machine. The tool plate is fitted on a second plate and is displaceable along a first direction (x) relative to the second plate, while the second plate is displaceable along a second direction (y) relative to the machine plate. Both directions (x, y) have an inclination of 45° each to the vertical normal axis of the wire-forming machine and are perpendicular to each other. | 01-08-2009 |
20090000409 | LINEAR GUIDE - A linear guide comprising at least two stationarily supported guide bars, on which a guide block is mounted and which is longitudinally displaceable relative to the guide bars. The guide block is provided with a driving unit to generate a relative movement with respect to the guide bars, the driving unit comprising a pinion which meshes with the teeth of a toothed rack extending in parallel with the guide bars. The toothed rack is mounted only at its front and rear ends and is suspended in-between. A guiding element assigned to the pinion is mounted to the guide block so as to be displaceable in the longitudinal direction of the toothed rack on which it is supported in a form-locking manner. The guiding element engages over the toothed rack at the region opposite the mesh between the pinion and the teeth. | 01-01-2009 |
20080223101 | GRIPPING APPARATUS FOR GRIPPING AND HOLDING ELONGATED WORKPIECES, IN PARTICULAR FOR BENDING MACHINES - A gripping apparatus for gripping elongated workpieces comprises a housing, carrying two pivotable gripping jaws which are movable between opened and closed positions, as well as a guiding body, in which the housing is displaceably supported. | 09-18-2008 |