Including Plural Tool Couples Patents (Class 72/472)
  • Patent number: 8720247
    Abstract: Multiple movable die portions (press punches) are respectively opposing to multiple fixed die portions (block members). Each of the press punches is sequentially pushed down with a predetermined time difference to the corresponding block member to continuously carry out press work to a material inserted into a press-work area between the press punches and the block members. A clearance is formed between a forward end of the press punch and a forward end of the block member at a position shortly before a press-work operating position in order to control a pulling force of the material, so that a shape distortion can be avoided.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: May 13, 2014
    Assignee: Denso Corporation
    Inventors: Hidemasa Otsubo, Kazuhiro Mitsukawa, Tomohiro Shiomi
  • Publication number: 20130170058
    Abstract: A solar collector array is disclosed. The array has a plurality of thin walled dishes interconnected by unitary webbing. The dishes and the webbing are formed from a single metallic sheet. Each dish is pressed into a symmetric parabolic surface that concentrates incident light to a position in front of the dish.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Inventors: Ray Arbesman, Nghi Pham, Albert Bachli
  • Patent number: 8381565
    Abstract: A hand and mechanically activated rivet setting device uniquely and integrally designed to set multiple different types of rivets comprising tubular, semi-tubular and solid rivets made entirely or in part from aluminum, brass, steel and stainless steel having multiple different kinds of heads comprising truss, dome and flat rivet heads; in a work product consisting of pieces and components to be riveted together. The device has the means to set rivets from different positional locations within the device and provides the device operator the ability to completely control the rivet setting process, assuring precision rivet setting without damaging the pieces or components being riveted.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 26, 2013
    Inventor: Carl Alfred Zander
  • Patent number: 7997115
    Abstract: The invention relates to a folding device (1) for a bending press, in particular an edging press for a 180°-folding brace on a workpiece (2) with a forming die (3) comprising a V-groove and a forming stamp (4) adjustable thereto and comprising a wedge extension (26) and with a folding die (5) arranged adjacent to the forming die (3) and forming a support surface (33) in a plane (23) extending perpendicular to an adjustment direction of the forming stamp (4). A tool mount (7) with the forming die (3) and the folding die (5) is arranged adjustably on an upper side (18) of a table beam (9), in a direction perpendicular to a bending plane (22), forming a gap (27) for mounting the wedge extension (26) for the folding procedure.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: August 16, 2011
    Assignee: Trumpf Maschinen Austria GmbH & Co. KG
    Inventors: Martin Tidl, Heinz Leumüller
  • Patent number: 7823434
    Abstract: In conventional ram-driven presses, the downward stroke of the ram into a tool causes acceleration of the tool, thereby facilitating an operation on a workpiece by the tip of the tool. While the ram stroke is found to impart sufficient dynamic energy to the tool to facilitate the necessitated operation by the tool tip, there are other more efficient, and in turn, more effective, means and methods of actuating the tool tip, with such means and methods being facilitated from energy derived from the tool's acceleration or from energy from other external sources.
    Type: Grant
    Filed: December 24, 2007
    Date of Patent: November 2, 2010
    Assignee: Wilson Tool International Inc.
    Inventors: Brian J. Lee, Jon M. Shimota
  • Patent number: 7810368
    Abstract: The invention is a multi-mode hammering machine that operates in a rigid mode, a flexible power hammer mode and a machine press mode to contour, shape and form sheet metal products. In all three modes, a ram is linearly stroked toward and away from a fixed die by a common ram drive assembly that includes a lever drive assembly and a reciprocating lever. The lever drive assembly moves in a rigid non-flexing manner. The reciprocating lever includes a rigid mode and a flexible mode. A conversion pin is used to engage one and simultaneously disengage the other. The lever drive assembly includes a control link that interfaces with a stroke adjustment mechanism. The gap adjustment mechanism is located at the fulcrum of the reciprocating lever. Both stroke length and gap are adjusted independently during the operation while the ram is cycling.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: October 12, 2010
    Inventor: Christopher J. Rusch
  • Patent number: 7762116
    Abstract: A bending brake includes a rotating carrier that is rotatable about a rotation axis. The carrier has first and second upper jaws connected thereto at different angular locations about the rotation axis. A locking mechanism for preventing rotation of the carrier during operation of the bending brake includes an endplate forming a pocket, the endplate disposed adjacent to a distal end of the carrier. A latch having a trigger portion is pivotally connected to the endplate and located within the pocket such that the trigger portion protrudes from the pocket. A toothed cam wheel rotating with the carrier has at least one tooth formed thereon that engages the trigger portion of the latch to prevent rotation of the carrier in one direction at preselected angular positions corresponding to the first and second upper jaws.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: July 27, 2010
    Assignee: Roper Whitney of Rockford, Inc.
    Inventors: Brian McVey, Jan Erik Börjesson
  • Publication number: 20100122563
    Abstract: A substantially two-dimensional sheet material is configured for bending along a bend line to form a three-dimensional article. The sheet material includes a sheet of elastically and plastically deformable material, one portion of the sheet material located on one side of the bend line and another portion located on the opposing side of the bend line, one portion being displaced relative to the another portion in the direction of the thickness of the sheet material, and/or a plurality of shear lengths extending along the bend line separating the one and another portions of the sheet material. At least a pair of adjacent shear lengths define a strap interconnecting the one and another portions of the sheet material.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 20, 2010
    Applicant: Industrial Origami, Inc.
    Inventor: Max W. DURNEY
  • Patent number: 7694544
    Abstract: A pressing device for forming steel sheet blanks into clips, which comprise curved planking elements and rectilinear stringer elements for connecting a fuselage cell skin to a stringer and to an annular rib in an aircraft fuselage, comprises at least one curved upper tool, at least one curved lower tool, at least one rectilinear upper tool, and at least one rectilinear lower tool. A steel sheet blank is receivable and formable between the at least one curved upper and lower tools and the at least one rectilinear upper and lower tools. The at least one curved upper and lower tool each comprises an upper and lower convexity surface designed to essentially correspond to each other in order to form the curved planking element in a single stroke surface model forming process by simultaneously bending and stamping.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: April 13, 2010
    Assignee: Airbus Operations GmbH
    Inventors: Helmut Krumpen, Frank Spehling
  • Publication number: 20100021270
    Abstract: A tab is used to open beer/beverage can ends and food can ends. The tab has one or more arcuate strips that are provided on a surface of the tab proximate to a peripheral surface of the tab where the one or more arcuate strips have been formed further into a preselected portion of curled or hemmed portions of the tab. Tooling for the manufacture of the tab is also provided. A method for manufacturing the tab is additionally provided as well.
    Type: Application
    Filed: October 1, 2009
    Publication date: January 28, 2010
    Inventors: Craig Allen McEldowney, Mark Richard Mitchell
  • Publication number: 20090293579
    Abstract: A duct-forming apparatus includes an apparatus frame, a forming piston assembly having a cylinder carried by the apparatus frame and a forming piston extendable from the cylinder. A duct-shaping assembly includes a form die having a form die interior and a forming surface provided in the form die interior; a forming assembly having a plurality of expandable forming sections provided in the form die adjacent to the forming surface; and a plurality of piston openings provided in the expandable forming sections, respectively, and adapted to receive the forming piston of the forming piston assembly. A duct-forming method is also disclosed.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 3, 2009
    Inventors: Peter K. Hwang, Kenneth P. Zaballos
  • Patent number: 7610789
    Abstract: A curling die tool includes an upper die, a transmission, and a lower die. The upper die includes an upper-die body and a warping-bending pressure portion for a workpiece. The warping-bending pressure portion includes a punch member and is secured to the upper-die body. The transmission member includes a first supporting body corresponding to the punch member supporting the workpiece, along with a curling pressure portion. The transmission member defines a first supporting groove facing the upper die receiving the first supporting body, along with a curling-pressure-portion receiving groove opposite to the first supporting groove receiving the curling pressure portion. The lower die includes a second supporting body facing the curling pressure portion, supporting the workpiece, and defining a guiding groove and a second supporting groove receiving the second supporting body. The transmission member is movably connected to the lower die and slides along the guiding groove.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: November 3, 2009
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Yi-Hua Liu, Fu-Shun Huang, Chia-Hsiang Ou
  • Patent number: 7331207
    Abstract: A power hammer assembly providing forming capabilities while remaining economical with respect to performance, vibration, footprint size and acquisition costs. The power hammer assembly can provide for a single stroke speed and/or a single set stroke with respect to the striking of die assemblies against a piece of metal. The power hammer assembly can provide for a large throat area and/or a larger die gap for ease of use. The power hammer assembly can include adjustment features allowing for the use of die sets of varying configurations such as, for example, shank size, shank length or alternatively, die sets fabricated for use with other machinery. In addition, the power hammer assembly can include a belt transmission assembly designed to slip in the event of die interference during set-up or operation so as to avoid damaging the power hammer assembly.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: February 19, 2008
    Assignee: Hot Metal Customs, Inc.
    Inventor: Dennis Borgwarth
  • Patent number: 7066002
    Abstract: A metal sheet punch device for metal sheets which includes a longitudinally extended frame having forward and rearward ends and alignment devices for aligning the frame on a metal sheet. At least two metal punch devices are mounted on the frame, each including a metal punch support structure movably mounted on the frame and a metal punch having a pointed lower end, the metal punch mounted on the underside of the metal punch support arm structure. A support structure drive device such as a coiled spring is operatively connected to the metal punch support structure to rapidly move the metal punch support structure between a retracted position and an extended position and a trigger device is operatively connected to the metal punch devices to trigger each of them to drive the metal punch into the metal sheet to form at least two securement screw indentations therein.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: June 27, 2006
    Inventors: John Price, Leighton Schafer
  • Patent number: 6928850
    Abstract: A method and apparatus for enabling z-axis offset of narrow metal ties straps in lead frames used for packaging integrated circuits to prevent bowing or distortion. Simultaneous offsetting of the tie strap and stress relief mechanisms are provided on both the front and back sides of the lead frame. Those mechanisms include indentations along the long or primary axis of each tie strap, coupled with depressions across the top surface both at the center of the lead frame and between the base of the off set and the chip attach locations to prevent bowing in small pad and no pad lead frames, in particular.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: August 16, 2005
    Assignee: Texas Instruments Incorporated
    Inventors: William J. Pelletier, Wayne E. Mann
  • Patent number: 6530255
    Abstract: A forming press apparatus with which forming of a plurality of different workpieces can be carried out using a single press. The press has raise/lowerable upper and lower die sets. A plurality of forming die pairs corresponding to a plurality of forming steps to be carried out on a pre-drawn workpiece are mounted en bloc to the die sets. The forming die pairs are disposed in a row on the die sets in the order of the forming steps.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: March 11, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toshiyuki Usui, Seiya Sasaki
  • Patent number: 6298708
    Abstract: A tool holder having a plurality of tools fixed thereon is used in a production machine such as a production press to position one tool after the other opposite a workpiece holder. All of the tools perform the same operation and can be brought into position by a pneumatic cylinder which can angularly displace a pinion engaging a rack.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: October 9, 2001
    Assignee: Gebr. Hilgeland GmbH & Co.
    Inventors: Kurt Gaul, Wolfgang Ausländer
  • Patent number: 6279370
    Abstract: The invention relates to an arrangement for performing a secondary operation in a pressing tool for sheet metal forming comprising a primary cylinder/piston unit (1) arranged to pressurise an operating fluid upon closing of said pressing tool for performing a primary forming operation on a work piece. A secondary cylinder/piston unit (7) is mounted within said pressing tool, carrying tooling for conducting said secondary operation mounted on its piston rod (7c). The arrangement further comprises means (2, 20, 21) for storing said pressurised operating fluid and means for selectively allowing a first volume flow of operating fluid of a first pressure to the secondary cylinder/piston unit (7), for advancing its piston rod (7c) until the tooling encounters the work piece.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: August 28, 2001
    Assignee: Stromsholmen AB
    Inventor: Mattias Awad
  • Patent number: 6269671
    Abstract: Process for manufacturing cold formed shaped packaging having at least one recess made from a metal-plastic laminate 20. Examples of such shaped forms of packaging are the base parts of push-through packs or blister packs. The process is such that the laminate 20 is held between a retaining tool 5 and a die 1. The die 1 exhibits at least one opening 8 and a stamping tool 6 is driven into the die opening 8 causing the laminate to be shape-formed into the said packaging and, correspondingly, exhibiting one or more recesses. The die 1 and the retaining tool 5 exhibit facing edge regions 11,12, and within the edge region 11 the die 1 exhibits a shoulder region 13 that surrounds the die opening 8 or openings 8. The surface of the shoulder region 13 lies 0.01 to 10 mm lower than the surface of the edge region 11 of the die 1.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: August 7, 2001
    Assignee: Alusuisse Technology & Management Ltd.
    Inventors: Patrik Zeiter, Heinz Oster
  • Patent number: 6112568
    Abstract: To roll form a worksheet by a turret punch press, at least one pair of coacting tools are mounted to the opposed turrets so that when those tools are rotated to the work location, they could be driven to a predetermined relative distance towards each other to make contact with the workpiece. The depth of the formed shape is determined by the relative distance the coacting tools are driven towards each other. By moving the worksheet at the same time that the coacting tools are making contact with the worksheet, roll forming of the worksheet is effected. By providing the coacting tools in the opposing indexing stations and synchronously rotating those stations, a complex pattern can be roll formed on a worksheet.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: September 5, 2000
    Assignee: Finn-Power International, Inc.
    Inventor: Mikko Lindstrom
  • Patent number: 5857377
    Abstract: The system for producing bent sheet-metal articles comprises a bending machine (80) having a punch (84) and a die (86) which cooperate with each other and define a bending space, and a manipulator (64) having a movable head (76) which can grip a piece of sheet metal and place it in the bending space. Each piece to be bent has its own gripper and the head (76) of the manipulator (64) has rapid-attachment means for gripping and releasing the gripper associated with each piece. A table for defining the position of a piece to be bent, a manipulator for gripping and moving a piece of sheet metal by means of a floating head, a bending machine comprising an auxiliary structure for measuring the relative displacement of the punch and the die, and a device for automatically replacing tools of the bending machine are also described.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: January 12, 1999
    Assignees: Amada Company, Limited, CREA S.r.l.
    Inventor: Franco Sartorio
  • Patent number: 5669128
    Abstract: An index-feed machining system comprising a plurality of machining units, each having a cassettes having a plurality of machining means and detachably fitted to a machining unit proper, disposed at intervals of mP (m being a given positive integer, and P being a feeding pitch of a workpiece) in a direction in which the workpiece is fed to sequentially machining the workpiece that is index-fed at the feeding pitch of mP, in which a ram is vertically movably provided on an upper end of the machining unit proper constituting the machining unit, a hydraulic cylinder is provided in the machining unit or the ram, a piston is vertically movably provided in the hydraulic cylinder, an actuating unit comprising an eccentrically rotating shaft and the piston that can be engaged with each other via a connecting rod or via a connecting rod and the ram, is provided above the machining unit, and a hydraulic circuit is provided so that operating fluid can be selectively introduced from the hydraulic circuit to an upper part
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: September 23, 1997
    Assignee: Institute of Technology Precision Electrical Discharge Work's
    Inventors: Shoji Futamura, Keizo Unno
  • Patent number: 5542283
    Abstract: In a bending machine for wire or strip materials comprising a machine body (1) defining a work face (2) and having disposed thereon at least one planar and undercut guide path (F1 to F3) for tool mounting carriages (S1 to S4) mounted thereon for displacement therealong at least between operating positions by means of a selectively remote-controlled displacement drive system (7) and for being locked on said guide path in the selected operating position, each tool mounting carriage (S1 to S4) defining an operating axis (A1 to A4) extending substantially perpendicular to the respective guide path, and being provided with a tool carrier (6) mounted for displacement along the operating axis (A1 to A4) by means of an operating actuator (5), at least one guide path (F1, F2, F3) is formed with an arcuate curvature in the guide plane, the curvature preferably following a circular arc (K), and the concave side of the curvature facing towards a material feed axis (3).
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: August 6, 1996
    Inventor: Friedhelm Post
  • Patent number: 5483814
    Abstract: An apparatus for working metal workpieces comprises a frame (1), a rotatable tool turret (29) movable up and down and carrying a plurality of punch tools (32) which can be moved into a working position by rotation of the tool turret. The frame (1) is provided with a corresponding stationary rotatable tool turret (33) as carrier for the die tools (34) associated with said punch tools which die tools (34) can be moved into a corresponding working position by rotation of said tool turret (33). The apparatus is made in such a manner that the centre line of the punch tool (32) located in the working position and the corresponding die tool (34) located in the working position intersects the axis of the tool turret (29) and/or the axis of the die tool turret (33).
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: January 16, 1996
    Inventor: Cornelis H. Liet
  • Patent number: 5271261
    Abstract: A stamping and bending machine comprises a drive housing with a drive housing visual wall and two drive housing face walls. From each of the drive housing face walls projects at least one housing box. Processing devices are attachable to the housing boxes. A distributor gear is provided within the drive housing. Each of the housing boxes accommodates a housing box shaft drivingly connected with a distributor gear and with the processing devices.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: December 21, 1993
    Assignee: Otto Bihler Maschinenfabrik GmbH & Co.
    Inventors: Otto Bihler, Eduard Bruller
  • Patent number: 5216913
    Abstract: The guideway for each working carriage has a predetermined parking position in a bending machine for skein-shaped material, in which several working carriages can be adjusted in positions determined by a bending program in a working plate and which comprises at least one working carriage guideway and a drivable working carriage transport device, with which each working carriage can be optionally coupled for adjustment. Each working carriage positioned for working can be adjusted to its parking position with the transport device and can be adjusted again to any optional position from the parking position by the transport device. A program control unit is preferably provided which clears the working carriages after the machining of a lot size of a bending program to their parking positions with leader and trailer programs and, prior to the beginning of a lot size, brings the working carriages from their store parking positions with a new bending program and adjusts them to the new positions.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: June 8, 1993
    Assignee: Alpha-Maschinenbau AG
    Inventor: Friedhelm Post
  • Patent number: 5209101
    Abstract: Described herein is a drive unit for a machining center of modular construction comprising different work modules with tools which are positively controlled with respect to time, e.g. bending tools, front-feed devices, welding stations, assembly units or the like. The drive unit is constructed as a press which comprises the main drive for the machining center. The drive of adjacent work modules is effected via meshing toothed wheels which bridge the interface planes between the work modules, so that the drive unit can be integrated into the machining center in a space-saving and economical manner.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: May 11, 1993
    Inventor: Heinz Finzer
  • Patent number: 5186037
    Abstract: In a processing machine, for example an automatic punching and bending machine, it is proposed to drive a plurality of processing devices by a reciprocatingly moved drive rod, control cams being mounted on the drive rod and cam followers being mounted on moving parts of the processing devices.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: February 16, 1993
    Inventor: Otto Bihler
  • Patent number: 5119666
    Abstract: A turret punch press includes an upper and lower turrets for respectively supporting a plurality of punches and dies; the punches are arranged two-dimensionally in a punch mounting regions on the upper turret and the dies are arranged two-dimensionally in a die mounting region on the lower turret. The turret punch press further includes a ram and a striker for striking the punches. The striker is provided on a bottom of the ram so as to be movable in two horizontal directions above the punches indexed in a processing region. In the turret punch press, when the turret is indexed in the processing region, many punches and dies are simultaneously indexed in the processing region. Thus, by moving the striker in two horizontal directions above the punches indexed in the processing region, many successive punch operations can be quickly performed without intermediate rotation of the turrets.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: June 9, 1992
    Assignee: Amada Company, Limited
    Inventor: Takayuki Fujiwara
  • Patent number: 5099670
    Abstract: The machine includes a U-shaped princer (12) with a pair of arms (14, 16) which carry a V-sectioned linear punch (P) and a V-sectioned linear die (D) respectively. The punch (P) is fixed and the die (D) is movable. The U-shaped pincer (12) is mounted so that it can rotate both about a bending axis (V) coincident with the edge of the punch (P) and about a horizontal pivoting axis (O) which intersects the bending axis (V). A clamp (10) is adapted to grip an upper edge of a piece (W) of sheet metal so that a region thereof to be bent lies in a vertical suspension plane (B) lying between the arms (14, 16) of the U-shaped pincer (12) and containing the bending axis (V). The U-shaped pincer (12) and the clamp (10) are capable of relative movement both in a vertical direction (Z) and in a horizontal direction (X) perpendicular to the horizontal pivoting axis (O).
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: March 31, 1992
    Assignee: Amada Company, Limited
    Inventor: Franco Sartorio
  • Patent number: 5038598
    Abstract: A method and apparatus for conducting a secondary operation on a workpiece such as punching or flanging, after a primary forming operation has been completed while the workpiece is still in the press. The secondary operation is performed by discharging a volume of hydraulic fluid to a working cylinder at a selectively controlled point in the press cycle, the hydraulic fluid pressurized by compression of a volume of gas by the press during the primary operation, and thereafter released by a solenoid valve at the time the secondary operation is to be performed. A discharge cylinder is mounted to one of the dies and is engaged to cause the hydraulic fluid to be pressurized by compression of the gas during the downstroke of the press.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: August 13, 1991
    Inventor: Gene Pitzer
  • Patent number: 4991422
    Abstract: The machine includes a U-shaped pincer (12) with a pair of arms (14, 16) which carry a V-sectioned linear punch (P) and a V-sectioned linear die (D) respectively. The punch (P) is fixed and the die (D) is movable. The U-shaped pincer (12) is mounted so that it can rotate both about a bending axis (V) coincident with the edge of the punch (P) and about a horizontal pivoting axis (O) which intersects the bending axis (V). A clamp (10) is adapted to grip an upper edge of a piece (W) of sheet metal so that a region thereof to be bent lies in a vertical suspension plane (B) lying between the arms (14, 16) of the U-shaped pincer (12) and containing the bending axis (V). The U-shaped pincer (12) and the clamp (10) are capable of relative movement both in a vertical direction (Z) and in a horizontal direction (X) perpendicular to the horizontal pivoting axis (O).
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: February 12, 1991
    Assignee: Amada Company, Limited
    Inventor: Franco Sartorio
  • Patent number: 4945752
    Abstract: A tool carrier for a punch or stamping machine in which the positioning piston-and-cylinder devices for respective actuating elements are disposed with a fixed center-to-center spacing from one another on opposite sides of a plane of symmetry and the tool holders are disposed in the tool carrier with their tools located symmetrically with respect to this plane so that individual tools can be operatively enabled by single actuating elements, larger tools by pairs of such actuating elements and even larger tools by two pairs of such actuating elements in symmetrical relationship.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: August 7, 1990
    Assignee: Rolf Peddinghaus
    Inventors: Bernd Stursberg, Karl-Heinz Bauer
  • Patent number: 4911632
    Abstract: A structure for releasably securing a plurality of mold inserts to a mold plate attached to a power press machine is disclosed. The mold plate has a plurality of apertures formed therethrough. Within each aperture, a plurality of inwardly extending spaced apart protrusions are formed. The mold inserts include end portions having a plurality of tabs formed thereon. A mold insert is inserted within an aperture by aligning the tabs with the spaces between the protrusions and moving the mold insert axially therein. Then, by rotating the mold insert relative to the mold plate, the tabs are moved over the protrusions. As a result, the mold insert is retained within the aperture. Locking bars prevent rotation of the mold inserts at undesired times to prevent them from being removed from the mold plate. A locking mechanism may be used to secure the locking bars, and therefore the mold inserts, in their locked positions during use.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: March 27, 1990
    Assignee: Dana Corporation
    Inventor: James A. Mansfield
  • Patent number: 4903519
    Abstract: Method and apparatus for straightening of cast anodes on their way to a stage for electrolytic refining of metals. The straightening of the anodes and the elimination of the casting fins is carried out by pressing the anode at several spots or spot areas simultaneously. The apparatus includes a pressing member formed of horizontal and vertical bars. The adjacent ends of the horizontal and vertical bars form at least one of a miter joint configuration or are right-angled.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: February 27, 1990
    Assignee: Outokumpu Oy
    Inventors: Rauno K. Hukkanen, Olli E. Ylimaki, Seppo I. Kuisma
  • Patent number: 4903520
    Abstract: Method and apparatus for straightening of cast anodes on their way to a stage for electrolytic refining of metals. The straightening of the anodes and the elimination of casting fins is carried out by pressing the anode at several spots or spot areas simultaneously.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: February 27, 1990
    Assignee: Outokumpu Oy
    Inventors: Rauno K. Hukkanen, Olli E. Ylimaki, Seppo I. Kuisma
  • Patent number: 4852379
    Abstract: The disclosure relates to improved methods of forming sheet metal of general application, and particularly useful in the formation of certain forms of merchandise display devices having relatively moving parts serving to serially advance stacks of merchandise packages.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: August 1, 1989
    Inventor: Nat Levenberg
  • Patent number: 4825682
    Abstract: An adjustable crimping tool (10) is provided having a pair of indexable discs (18, 32) each of which carry a plurality of concave die cavities (18A-18F, 32A-32F) spaced about and opening to outer periphery thereof which can be moved into registry (FIG. 1) to define a selected size/shape of crimping cavity (C).
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: May 2, 1989
    Inventors: Mihkel Orav, Eugene D. Bonnes
  • Patent number: 4791803
    Abstract: In a multi-stage forming machine, a die-change device, for male dies in a male-die block has a mounting plate for receiving a clamping face of the male-die block on one side. Bayonet fasteners on hollow pistons in the mounting plate then engage the male dies, and a pressure medium then moves the hollow pistons to move the male dies against thrust pieces displacably in the hollow pistons and the thrust pieces against an adjusting wedge on the opposite side of the mounting plate.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: December 20, 1988
    Assignee: Hatebur Umformmaschinen AG
    Inventors: Joseph Broquet, Raymond Schoenenberger
  • Patent number: 4760729
    Abstract: A metalworking press for forming easy open can ends. The metalworking press includes a primary ram for suspending an upper tooling member and designed to vertically reciprocate; a primary press bed stationarily positioned beneath the primary ram for mounting a lower tooling member; a seconary ram positioned beneath the primary press bed for suspending another tooling member and designed to vertically reciprocate; a secondary press bed stationarily positioned beneath the secondary ram for mounting another lower tooling member; driving rods secured to the primary ram and the secondary ram so that the rams move in unison; and a device to vertically reciprocate the primary ram so that when the device moves the primary ram downwardly the secondary ram moves downwardly, and when the device moves said primary ram upwardly, the secondary ram moves upwardly.
    Type: Grant
    Filed: January 6, 1988
    Date of Patent: August 2, 1988
    Assignee: The Stolle Corporation
    Inventor: Elton G. Kaminski
  • Patent number: 4736616
    Abstract: A press for splicing the ends of cables, ropes and the like is described. The press is of the type which utilizes an hydraulic cylinder (5) positioned vertically and resting on a base (6). An upper frame (8) comprises a plate (9) which is fixed to the hydraulic cylinder. The piston of the cylinder has a stem which protrudes from the plate. The frame additionally comprises two lateral plates (10) opposite one to the other and arranged in the shape of a "U" and an upper plate (11) which provides support pressure. Each of the lateral plates has an opening and a loader is inserted within the openings. The loader consists of two half-matrixes, which have a plurality of notches of different diameters whereby when the half-matrixes are approached one to the other a plurality of shaped openings of different diameters is formed.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: April 12, 1988
    Assignee: Douglas Marine s.r.l.
    Inventor: Marino D. Scotti
  • Patent number: 4733552
    Abstract: A press assembly is disclosed with a series of punch/die sets for successive operations on parts connected together in a strip. The punch/die sets are conveniently relocatable anywhere on regularly-spaced fixed stations and the stations can receive more than one punch/die set. The punches and dies in the sets can be mounted on removable base plates or otherwise made movable to any spacing, such that the sets are easily spaced to reflect a length of the parts being manufactured. The increment of strip feed between operations of the press is also adjustable. The press assembly can therefore be inexpensively set up to make parts of any characteristic length.
    Type: Grant
    Filed: March 18, 1986
    Date of Patent: March 29, 1988
    Inventor: Michel E. Lefils
  • Patent number: 4708009
    Abstract: The apparatus of this invention, for bending wire and metal strip, comprises a stationary working plate, a drive shaft rotatable in bearings spaced along its length and fixed relative to the working plate, and a tool guide unit confined to adjustment relative to the working plate in directions parallel to the drive shaft and carrying a tool slide that it guides for reciprocation transverse to the drive shaft. A cam on the drive shaft by which the tool slide is reciprocated is fixed to an axial sleeve portion concentric to the drive shaft and axially slidable along it, which sleeve portion is rotatably received in a cam bearing that is secured in the tool guide unit. The cam bearing thus radially supports the cam and the drive shaft so that the drive shaft can be relatively slender and light.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: November 24, 1987
    Assignee: Alpha Maschinenbau AG.
    Inventor: Friedhelm Post
  • Patent number: 4676090
    Abstract: A press machine is disclosed which is provided with a plurality of press dies fixedly secured on a bolster. The machine has a vertically reciprocable frame member with a predetermined constant stroke, which carries a plurality of pressure plates cooperating with the die, respectively. Each pressure plate is axially movable with respect to the frame member and threadedly connected with a spacer plate arranged between the frame member and the pressure plate. The shut height of the machine can be individually adjusted for each pressure plate, by rotating the spacer plate relative to the pressure plate. The shut height can be optimized very easily and in short a time so that the productivity can considerably be improved.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: June 30, 1987
    Assignees: Hashimoto Forming Industry Co., Ltd., Kabushiki Kaisha Shibakawa Seisakusho
    Inventors: Tatsuo Nishimura, Tatsuya Tamura
  • Patent number: 4662207
    Abstract: This specification discloses a compact press tool which is capable of accommodating eccentric loadings without jamming or causing hydraulic fluid leakage.Specifically the press tool (1) comprises: a stationary element (2), a movable element (3) and an hydraulic ram (5) adapted to translate the movable element (3) relative to the stationary element (2). The hydraulic ram (5) has a first piston (7) fixedly connected with the stationary element (2), a second piston (9), axially spaced from the first piston (7), able to bear against the movable element (3), and a floating cylinder (10) sealed at one end by the first piston and at the other end by the second piston (9).
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: May 5, 1987
    Assignee: Liras Pty. Limited
    Inventor: Douglas A. McDonald
  • Patent number: 4590783
    Abstract: A press forming process is composed of a step of removing wrinkles of the surface of a curved elongate flat sheet metal workpiece which has been prepared by a so-called edge bending process. The wrinkle removing step is carried out prior to a U-shape bending step in which the workpiece is bent to have a U-shaped cross-section in order to obtain an curved elongate channel-shaped article, thereby improving the quality of the resulting article while preventing press dies from being damaged.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: May 27, 1986
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroshi Tanaka, Sotozi Mitani, Yasushi Sakurai
  • Patent number: 4581818
    Abstract: A die-assisted squeeze-forming apparatus, for bending hooks of a plate against a container e.g. a tank, is able to be used with various shapes of the plate and container without replacement of the die structure. To that end, the apparatus is provided with a calking die structure which has a plurality of divided, relatively movable dies, each movable die being subject to being individually actuated by an actuator. The preferred embodiment of the apparatus also includes a controlling means which controls the movement of the actuators and a detecting means which detects a feature of the tank which is symbolic of the size and shape of that tank. The electric signal which indicates the feature of the container is applied to the controlling means. Then the controlling means sends a respective controlling signal for controlling the movement of the actuators in order to cause an adequate rearrangement of the shape of the calking die structure should the tank be different in size or shape then the preceeding one.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: April 15, 1986
    Assignee: Nippondenso Co., Ltd.
    Inventors: Fumio Kondou, Kazuyori Sakakibara, Masataka Ono
  • Patent number: 4559804
    Abstract: A rectangular prism (FIG. 10A) is cut diagonally to form a pair of generally wedge-shaped billets (FIG. 10B). The generally wedge-shaped billets are heated and placed in a transversely elongated die cavity of a lower busting die (20). An upper busting die (22) presses the billet generally into conformity with the busting die cavity. The busting dies include a projection (36) which forms a recess in one planar surface of the billet (FIG. 10C). The busted billet is disposed axially in an axially elongated split ring die cavity (46) of a split ring die (40). A blocking punch (60) presses the billet generally into conformity with the split ring die cavity (FIG. 10D). The split ring die and the blocked billet are moved from a blocking well (14) to a finishing well (16) where a finishing punch (70) presses the blocked billet into conformity with the finishing die cavity (FIG. 10E). The flanges are trimmed from the finished billet and mounting apertures (80, 82) are punched to form an excavator tip (FIG. 10F).
    Type: Grant
    Filed: June 3, 1983
    Date of Patent: December 24, 1985
    Inventors: Ralph D. Delio, Donald J. Diemer
  • Patent number: 4550588
    Abstract: A press machine adapted for the production of many different types of products in limited quantities. The press machine comprises a plurality of lower dies mounted on a bolster and a plurality of upper dies each mounted to a slide facing to the respective lower dies. Each upper die is mounted to the slide by means of a die clamper via an adapter plate and each upper die is biased upwards by coil springs so that a predetermined gap exists between each pair of upper and lower dies when the slide is moved down to a bottom dead center. An activating plate can be insertable between the slide and each adapter plate so that the activated upper die is allowed to make contact with the opposing lower die.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: November 5, 1985
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Toshio Abe, Terushige Sakurai
  • Patent number: 4545233
    Abstract: An apparatus for punching a workpiece has a stationary frame, a longitudinally extending row of horizontally spaced and upwardly facing different dies fixed on the frame below a horizontally elongated punching station, at least one horizontal and stationary rail fixed on the frame, and a punch carriage displaceable horizontally along the rail above the station. A turret rotates about a horizontal turret axis on the carriage and carries a plurality of radially outwardly directed different punches angularly spaced about the turret axis. A positioning unit is operatively connected between the carriage and the frame for displacing the carriage through a plurality of positions in each of which the turret axis is above one of the dies. An indexing unit angularly displaces the turret about its axis through positions in each of which one of the punches is facing down in the station toward the respective die.
    Type: Grant
    Filed: November 8, 1983
    Date of Patent: October 8, 1985
    Inventor: Rolf Peddinghaus