Patents Assigned to L. Schuler
  • Patent number: 4308737
    Abstract: Beading apparatus is provided for producing a bead on the periphery of a hollow cylinder, such as a cam body. A rotatable inner ring and a rotatable outer ring co-act to deform a portion of the hollow cylinder therebetween to form a bead. To accommodate a firm backing of the exterior of the hollow cylinder during beading operations, while also permitting the removal of a beaded hollow cylinder from the apparatus, a depressor is provided which is formed as a basket with springing tongues separated by axially extending slots. A tapered cylinder liner is provided for forcing the springing tongues to a smaller diameter configuration to provide backing for the hollow cylinder during beading operations, with the springing tongues being movable to a larger diameter to permit removal of the hollow cylinder subsequent to beading operations.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: January 5, 1982
    Assignee: L. Schuler GmbH
    Inventors: Reinhard Kannegiesser, Rainer Guthle, Kurt Finsterwalder
  • Patent number: 4295399
    Abstract: An apparatus for the intermittent feeding of web-type or strip-type material by means of feed roll into an operating chamber of a press. The feed rolls are driven by a main press drive through a mechanical connection and a feed gear mechanism. A scrap cutter is provided which can be driven in correspondence with the operating cycle of the press. The mechanical connection can be selectively severed or interrupted with an auxiliary drive mechanism being provided which is adapted to be connected to the apparatus. The scrap cutter may be driven by a separate drive mechanism in correspondence with the cycle of the feed gear mechanism.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: October 20, 1981
    Assignee: L. Schuler GmbH
    Inventors: Kurt Finsterwalder, Karl-Heinz Philipp, Gunter Riedisser, Wilfried Voss
  • Patent number: 4279561
    Abstract: In press line operations, a workpiece conveyor device is necessary to carry workpieces from one press to another. Preferably, this conveyor should be readily removable for repairs, adaptable to a large number of presses, and readily reprogrammable to adapt to a variety of workpieces. To achieve this, a conveyor is provided having a cross member mounted on a movable carriage which moves along a track on a frame bridging the intermediate space between two presses. Horizontal movement of the carriage along the track, vertical movement of the cross member on the carriage, and movement of a positioning device for the workpieces is provided by setting drives controlled by a continuous-path numerical control unit. For repairs, the entire frame can be moved out of the intermediate space in a direction at a right angle to the direction of workpiece travel.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: July 21, 1981
    Assignee: L. Schuler GmbH
    Inventors: Franz Schneider, Burkhard Schumann, Karl Maier, Herbert Hohn
  • Patent number: 4270413
    Abstract: An arrangement for an intermittent operation in a notching machine which includes a ram driven by way of a crank or eccentric drive which ram is articulated to a toggle joint. The notching machine has an operating cycle which consists of alternatingly successive notching and notch-free steps which is attainable by means of a cylinder-piston unit activatable pneumatically or hydraulically which unit is in operative connection with an eccentric supported on a pin with the eccentric being the central fulcrum of the toggle joint. A second toggle joint with a counterbalancing mass is diametrically opposed to the ram with the second toggle joint being articulated to the eccentric. The central pivot as well as the points of articulation of the toggle joints to the ram and counterbalancing mass are disposed substantially in one plane.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: June 2, 1981
    Assignee: L. Schuler GmbH
    Inventors: Hans-Martin Dommer, Otto Kurz
  • Patent number: 4232575
    Abstract: An arrangement for notching or slotting circular blanks so as to produce stacks of rotor and/or stator laminations for electric machines. At least one slotting machine is provided which in a first direction is adjustable radially with respect to a spatially fixed axis of rotation of a blank support table by way of a separate adjusting drive. The support table for the blanks, constructed as an indexing apparatus, may be driven by a numerically controlled adjusting drive. The at least one slotting machine is movable in a second direction at right angles to the first direction by way of a further adjusting drive. The stacks of lamination produced by the punching arrangement may include spiral slots or notches as well as oblique slots or notches enabling the production of special motors having a cone or tapered armature.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: November 11, 1980
    Assignee: L. Schuler GmbH
    Inventors: Franz Schneider, Helmut Braitinger, Ewald Bergmann, Otto Kurz
  • Patent number: 4204380
    Abstract: An arrangement for feeding, stacking and packaging plate-like members punched by the die of a press of the type wherein the plate-like members are carried away initially vertically and then along a curve away from the vicinity of the press by guideways is formed of dispensers from which connecting material is fed over connecting devices adjacent the guideways into engagement with the punched members. According to preferred embodiments, the connecting material is provided with adhesive on one side, the connecting devices are spring-biased rollers, and a packet height marking mechanism is provided.
    Type: Grant
    Filed: February 15, 1978
    Date of Patent: May 27, 1980
    Assignee: L. Schuler GmbH
    Inventors: Ewald Bergmann, Alfred Kottmann
  • Patent number: 4192169
    Abstract: An apparatus for driving a pair of gripper bars of a multi-stage press in a longitudinal direction of the press which includes a pair of driven levers disposed symmetrically to a longitudinal center plane of the press, which levers are engageable with a slide guide extending at right angles to the longitudinal direction of the press. At least one feed cross member is operatively connected to the pair of gripper bars and also to the slide guide associated with the pair of driven levers. Two toothings are provided which are disposed symmetrically to the longitudinal center plane and are conjointly reciprocatingly driven between two end positions. Each toothing meshes with a pinion mounted for rotation and fastened to the frame with the pinions having a rotational path between the two end positions of the toothing which amounts to 180.degree.. Each pinion is also rotationally fixed to one of the pair of driven levers.
    Type: Grant
    Filed: September 6, 1978
    Date of Patent: March 11, 1980
    Assignee: L. Schuler GmbH
    Inventors: Werner Munch, Gerald Mikusch
  • Patent number: 4189269
    Abstract: A workpiece transport device which includes at least one gripper tong arrangement driven in comformity with a work rhythm of a machine tool which is required to be charged and/or discharged. The gripper tong arrangement grips a marginal area of the workpiece, transports the workpiece, and deposits the workpiece at another machine tool or workpiece depository. An extensible and retractable support slide is provided for supporting the workpiece in a transport phase by being displaced beneath the workpiece in parallel to the gripper tong arrangement.
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: February 19, 1980
    Assignee: L. Schuler GmbH
    Inventors: Karl Maier, Herbert Hohn
  • Patent number: 4176536
    Abstract: A device for producing a bead on a circumference of a hollow cylinder seeks to minimize the risk of unwanted deformations of the hollow cylinder such as wrinkles or bulges which can result when an area of the hollow cylinder to be beaded is forced inward without support. In a preferred embodiment, the device of producing a bead on a hollow cylinder includes an internal tool and an external tool which can be adjusted in a controlled manner in the radial direction, the internal tool comprising a support mandrel and an inner ring which is adjacent to the supporting mandrel in the axial direction and is capable of being adjusted radially relative thereto, and the external tool includes an outer ring which surrounds the inner ring and a hold-down ring which is axially adjacent the outer ring and capable of being adjusted radially relative thereto.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: December 4, 1979
    Assignee: L. Schuler GmbH
    Inventors: Walter Panknin, Kurt Finsterwalder, Reinhard Kannegiesser, Hans Bassler
  • Patent number: 4162734
    Abstract: An arrangement for aligning and stacking laminations and for transporting formed stacks of laminations with the laminations being provided with a circular inner and/or outer circumference and having stamped patterns defining a plurality of stampings distributed about the circumference of the laminations at equal centering angles. A stack forming device is provided for receiving laminations fed individually thereto with the stack forming device including at least two stack forming elements mounted so as to be selectively separable. The stack forming elements are disposed one above the other in a longitudinal direction of the stack forming device so as to form upper and lower stack forming elements. The lower stack forming element selectively engages the upper stack forming element, with such element being maintained in a fixed position when the lower stack forming element is displaced to a lowered position.
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: July 31, 1979
    Assignee: L. Schuler GmbH
    Inventors: Karl Dangelmaier, Alfred Bareis
  • Patent number: 4150616
    Abstract: A speed controlling arrangement and method for a mechanical press. The press has a crankshaft revolution which can be subdivided in principle into a discharging and charging region and a working region with the speed of the mechanical press being controlled between a maximum admissible speed and a minimum possible speed. The speed of travel of the press ram is controlled so that the speed of the press ram during the press discharging and charging region permits a safe discharging and charging of the press. During the working region, the press ram travels at a maximum permissible speed such that a stoppage of the press between the discharging and charging region and the working region is unnecessary.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: April 24, 1979
    Assignee: L. Schuler GmbH
    Inventors: Franz Schneider, Helmut Braitinger
  • Patent number: 4138005
    Abstract: A drive arrangement for a mechanically driven press with the press including at least one drive shaft mounted in a press frame and at least one eccentric or crank arranged on the drive shaft with a clutch being operatively connected to the drive shaft for permitting a press stroke operation upon engagement of the clutch. At least two hydraulic brakes are provided for braking the press between press strokes and a two system hydraulic circuit is provided for controlling the operation of the clutch and the at least two brakes.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: February 6, 1979
    Assignee: L. Schuler GmbH
    Inventors: Franz Schneider, Eugen Waller, Wolfram Buchler, Heinz Weber
  • Patent number: 4135446
    Abstract: A press arrangement which includes a press table, a punch and an adjusting arrangement for selectively adjusting the distance between the press table and punch. A pressure space is provided in the punch which selectively communicates with a pressure medium supply so as to load and relieve the pressure space. A piston is floatingly disposed in the pressure space and cooperates with an element of the adjusting arrangement so as to create a constantly-acting or permanently-acting tension on the adjusting arrangement when the pressure space is filled with a pressure medium.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: January 23, 1979
    Assignee: L. Schuler GmbH
    Inventors: Alfred Bareis, Reinhard Braun
  • Patent number: 4125072
    Abstract: A workpiece turning device is provided for an automated press train of the type where workpieces are turned after being withdrawn from a working chamber of a press and are then subsequently fed to a further press. The turning device includes separately movable gripper arms for clamping a workpiece therebetween, as well as a rotary unit for rotating the gripper arms as a unit about an axis parallel to the plane of clamping movement. In preferred embodiments the gripper arms are actuated by piston-cylinder units connected to a pressure source by a rotatable connection.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: November 14, 1978
    Assignee: L. Schuler GmbH
    Inventors: Karl Maier, Herbert Hohn
  • Patent number: 4120185
    Abstract: A control system for controlling operating steps of a press and/or transfer mechanism therefor in dependence upon the position of a drive shaft of a drive mechanism of the press. The system includes a coded pulse generator supplying coded pulses indicative of the position of the drive shaft to a decoder from which decoded pulses are supplied to a control pulse distributor to an amplifying unit and appropriate regulating member for regulation of the operating step. A monitoring unit is also provided for monitoring the operation of the control system.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: October 17, 1978
    Assignee: L. Schuler GmbH
    Inventors: Franz Schneider, Helmut Braitinger, Burkhard Schumann
  • Patent number: 4114490
    Abstract: A dividing apparatus for dividing, cutting, or severing a continuously running strip material with the apparatus including an articulated drive for effecting a stroke movement of a cutting unit. The articulated drive is constructed as a quadrangular linkage including a driven crank and a rocker lever pivotally connected to the driven crank through a coupling member. The rocker lever includes an extension portion extending beyond a pivotal connection of the coupling member with the rocker lever. A secondary drive lever is provided with a first end of a link member being pivotally connected with the secondary drive lever and a second end of the link member being pivotally connected with a free end of the extension portion of the rocker lever. A transmission link element is provided for moving the cutting unit with the transmission link element being adjustably connected with the secondary drive lever.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: September 19, 1978
    Assignee: L. Schuler GmbH
    Inventors: Hans Braun, Gunter Cieslok, Franz Wolf
  • Patent number: 4114489
    Abstract: A control arrangement for a dividing apparatus for dividing or cutting continuously fed strip stock of variable thickness. The dividing apparatus includes a drive arrangement for driving a cutting unit in a horizontal and vertical direction with an arrangement being provided for vertically adjusting the height of the cutting unit. A control arrangement is provided which includes a measuring device arranged in the dividing apparatus at a position upstream of the cutting unit, as viewed in the feed direction of the strip stock, with the measuring device dividing an output signal indicative of the measured thickness of the strip stock, which output signal is directed to control elements so as to correlate the speed of the drive arrangement and adjust the height of the cutting unit between minimum and maximum values in correspondence with the measure thickness of the strip stock.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: September 19, 1978
    Assignee: L. Schuler GmbH
    Inventors: Franz Schneider, Helmut Braitinger, Burkhard Schumann
  • Patent number: 4111086
    Abstract: An alignment and stacking arrangement for stampings manufactured in a continuous stamping operation by a stamping machine having a punch and associated punch matrix. At least one stacking channel is arranged in the punch matrix for receiving the stampings with an intermediate stack forming device being arranged at the stamping machine at a position below and independent of the punch matrix. The intermediate stack forming device may include at least one locking pawl for reducing the clearance of the stacking channel and/or a mandrel arranged in the stacking channel which is selectively engaged by a holding element during the formation of the intermediate stack. A stacking mandrel or stacking shaft is associated with the mandrel and is displaceable so as to permit a stack of stampings of a predetermined height to be carried away from the stamping machine by a conveyor arrangement.
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: September 5, 1978
    Assignee: L. Schuler GmbH
    Inventor: Karl Dangelmaier
  • Patent number: 4108031
    Abstract: An alignment and stacking arrangement for stampings manufactured in a continuous stamping operation by a stamping machine having a punch and associated punch matrix. At least one stacking channel is arranged in the punch matrix for receiving the stampings with an intermediate stack forming device being associated with stacking channel. The intermediate stack forming device may include at least one locking pawl for reducing the clearance of the stacking channel and/or a mandrel arranged in the stacking channel which is selectively engaged by a holding element during the formation of the intermediate stack. A stacking mandrel or stacking shaft is associated with the mandrel and is displaceable so as to permit a stack of stampings of a predetermined height to be carried away from the stamping machine by a conveyor arrangement.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: August 22, 1978
    Assignee: L. Schuler GmbH
    Inventors: Karl Dangelmaier, Alfred Kottmann
  • Patent number: 4108320
    Abstract: An arrangement for aligning and stacking laminations for electrical equipment and for transporting formed stacks of laminations with the laminations being fed individually in the same position to a stack former which maintains the relative positions of the laminations. The laminations include a circular inner or outer circumference and a plurality of stampings distributed about the surface of the laminations at equal centering angles. The stack former is provided with an appropriate circular circumference and a guide which can be introduced into at least one stamping. The stack former is rotatably mounted relative to its longitudinal axis and is provided with a rotary drive which operates in a stepwise manner with the rotary steps of the drive being equal to the central angle of the stampings of the stamping pattern or a whole number multiple thereof.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: August 22, 1978
    Assignee: L. Schuler GmbH
    Inventors: Alfred Bareis, Karl Dangelmaier, Reinhard Braun