Abstract: An device for crimping together adjacent edge portions of two building panels including a frame supporting a rotatable shaft protruding therethrough, a first crimping member attached to the frame, a gear train supported by the frame coupled to the rotatable shaft such that a rotation of the rotatable shaft imparts rotary motion to the gear train, a drive mechanism supported by the frame and rotatably coupled to the gear train, and a second crimping member supported by the frame and coupled to the drive mechanism, wherein the second crimping member is configured to move toward and then away from the first crimping member in a repeating, reciprocating motion under influence of the drive mechanism while rotation of the rotatable shaft is maintained, such that the second crimping member is configured to bend an edge portion of a first building panel over an edge portion of a second building panel.
Abstract: A bending head for bending the peripheral edge of a sheet of material, the bending head being usable with a power source. The bending head includes an anvil member, the anvil member defining a substantially elongated anvil surface. A hammer member is movable relatively to the anvil member substantially perpendicularly to the anvil surface. An actuator is provided for receiving power from the power source, the actuator being operatively coupled to the hammer member for moving the hammer member relatively to the anvil member when the power source powers the actuator. The hammer member defines a hammer surface, the hammer surface being substantially elongated, the hammer surface substantially opposing the anvil surface so as to define a gap therebetween. The gap defines an entry point and a substantially longitudinally opposed exit point. The sheet of material is movable along the gap between the entry and exit points.
Abstract: A press has an upper traverse, a lower traverse below the upper traverse, and vertical frame elements extending between the traverse, fixing same together against relative movement, and forming a rigid frame with the upper traverse and lower traverse. A central traverse is vertically reciprocal on the elements between the upper and lower traverses. A workpiece is fed horizontally through the press between the upper traverse and the central traverse. A stationary support is provided adjacent the frame, and the frame is supported for at least limited vertical movement relative to the support. A drive connected between the support, the frame, and the central traverse vertically reciprocates the frame and the central traverse relative to the support.
Abstract: A punching and stamping machine has a movably guided die plate frame, in which an eccentric shaft for the drive of the die is simultaneously disposed. The die plate frame is moved by means of a plate cam which is directly coupled with the eccentric shaft As a result, a forcibly guided movement is achieved between the die and the die plate which, with respect to the workpiece to be machined, is superimposed such that the die carries out only minimal movements with respect to the workpiece and therefore, particularly in the case of a hollow-cylindrical workpiece, permits the machining from the interior side to the exterior. As a result of this forced guidance, very high operating speeds can advantageously be achieved with a high precision.
July 27, 2000
Date of Patent:
February 12, 2002
Ernst Grob AG
Daniel Dériaz, Marc Dériaz, Peter Geser
Abstract: For the profile kneading of workpiece in strand from (semiproducts) which are transported along a central axis into a working station (profile kneading machine) at least two dies situated opposite one another in pairs for working on the surface of the workpiece are driven by rams at their extremity remote from the axis; the rams are driven radially toward the axis by rolls (cylinders, balls) moving on a circular path relative to outer guiding surfaces of the rams; at the same time at least two pairs of dies, whose radial driving directions are displaced from one another by a given angle (90.degree.), are driven successively by the rolls in a radial direction by means of the guiding surfaces of the rams; the edge length of the dies in each working step is greater than the targeted edge length of the workpiece (semiproduct) that is to be worked.
Abstract: A die set (24) for use with a stamping and forming machine (10) includes two opposed tooling plates (50, 52) arranged to undergo reciprocating motion with respect to a base plate (40) toward and away from a strip of material (30) that is fed along a feed path (38) between the two tooling plates (50, 52). Each tooling plate has a tool attachment surface (58, 60) facing inwardly toward the feed path (38) for the attachment of punch and die tooling assemblies (26, 28) for performing the stamping and forming operations on the strip of material. Each of the tooling plates (50, 52) includes four guide posts (82) that extend outwardly in a direction away from the feed path (38) so that the area (98) between the opposing tool attachment surfaces (58, 60) is maintained clear for the operation and maintenance of the punch and die tooling assemblies (26, 28).
Abstract: In a method of producing splines on a shaft, cold deformation without removal of chips is effected on the outside face of a small-thickness tube in a single operation. The cold deformation includes hammering the small-thickness tube by a conjugate and simultaneous action of beating and kneading. The depth of the splines can be as much as half the thickness of the tube.
October 22, 1997
Date of Patent:
April 20, 1999
Christophe Sachot, Andre Laisement, Michel Chartrain
Abstract: The invention includes a press having two slides disposed in opposed relationship to each other with a single crankshaft connected to each slide whereby rotation of the crankshaft causes each slide to move toward and away from the other slide. A drive mechanism is utilized to rotate the crankshaft. The drive mechanism is located under the two slides to provide protection against oil leaks. Dynamic balancers are utilized to substantially balance press inertia forces during operation, to where over 90 percent of vertical press inertia forces are balanced. By balancing such press inertial, the press may be stopped within one crankshaft revolution.
November 26, 1996
Date of Patent:
December 29, 1998
The Minster Machine Company
John B. Bornhorst, Bradley A. Burns, Edward A. Daniel, Dale A. Homan, Rick Oen, Brian R. Silverstein, Brian A. Watercutter
Abstract: The machine tool has a frame (10) and in it, a cam gear with two pairs of cam tracks with complementary curve shapes. The tool actuation takes place by means of two levers (3a, 3b) which are hinged to the side on a clamping plate (8). Each of these levers has two rollers (4a, 6a; 4b, 6b) on one of its arms and these are coupled positively to one cam track pair each.
Abstract: An apparatus for driving upper and lower tool parts for punching, cutting and stamping, and more particular to such an apparatus using a rotary screw rod and a nut member threadedly engaging with the screw rod so as to move up or down therealong.
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: Apparatus for automatically forming pointed ends for raw metal pipes such as aluminum pipes subject to a drawing process, the pointed end of the pipes being of a reduced diameter convenient for the drawing process. A transporting device moves each raw pipe, which is in alignment with an axis of a pipe inlet of a swaging machine for producing the pointed ends, to a position below the inlet. Each pipe is raised by a lifting device to a height of the pipe inlet so as to be chucked by a gripping device which moves forward to insert a leading end of the pipe into the inlet. The lifting device and the raw pipe are kept out of contact with each other while the leading end is being processed to form the pointed end at the inserted end in the swaging machine whereby efficiency and productivity are improved for the process.