Abstract:
Die Erfindung betrifft ein Verfahren zur Erzeugung von Durchgängen in einem metallischen Körper mittels Hochgeschwindigkeitsscherschneiden (HGSS) mit geschlossener Schnittlinie, dadurch gekennzeichnet, dass ein Stempel (1 1 ) mit einer den Durchgängen entsprechenden ersten Abmessung (D) bis zu einer Eintauchtiefe eingebracht wird, bei der der Bruch in Wirkrichtung des Stempels (11 ) durch den gesamten metallischen Körper unter Ausbildung eines Butzens (13) hindurchgeht, dann die Hubbewegung gestoppt und der Stempel (11 ) wieder zurückgezogen wird, und dass in einem Folgeschritt der sich noch im Durchgang befindliche Butzen (13) mittels eines Auswerfers, der eine geringere zweite Abmessung als der Stempel (1 1 ) aufweist, aus dem Durchgang herausgetrieben wird.
Abstract:
A method for production of tubes with small dimensons, in particular capillary tubes and other closed and open profiles of various sizes. The tubes are produced from an extruded multiport extrusion product, MPE (1 ) comprising a number of ports or tubes (2) provided side by side and each being interconnected by means of a step or fin (3). Initially the MPE product (1 ) is produced by extrusion, where after the tubes (2) of the MPE product is split such that individual tubes (2) are provided by separating them from one another through cutting of the steps or fins (3) in the longitudinal direction of the MPE product.
Abstract:
A cutdown machine (30) and method are disclosed. The cutdown apparatus (30) preferably includes a pair of cutting assemblies (42, 44) for simultaneously cutting the ends of a window covering (10). Additionally, a calculation apparatus (48) and method for use in conjunction with the cutdown machine (30) are also disclosed. The calculation apparatus (48) may be a stand alone unit, or preferably integrated into the cutdown machine (30). The calculation apparatus (48) preferably calculates and automatically positions a stop element (52) in the cutdown machine (30), in connection with desired end window covering dimensions and related stock window covering sizes.
Abstract:
Processing equipment (13) for cutting or shaping all faces of elongate I-section beams (10), girders, tubes or the like, has a plurality of aligned but spaced apart co-axial holding stations (14) on either side of a central processing station (16). Each holding station has a pair of tapered rollers which are both movable towards and away from one another to accommodate I-beams (10) or other elongate bodies (10) of different cross sections. Each holding station (14) can rotate the beam (10) about the longitudinal axis thereof and can also feed the beam (10) through a brush seal (15) into an enclosed water-jet cutting apparatus (16). After processing within the cutting apparatus (16), the support units (14) drive the beam (10) out to a plurality of output support units (17) at the output end (18) of the processing equipment (13). On completion of operations on the beam (10), it can be discharged through the open jaws of the holding stations (14) onto a plurality of output rails (19) for removal.
Abstract:
Method for shearing to size bars, the method using shears comprising a pair of counter-rotating drums (11), the shears comprising a single-channel switching device (14) suitable to cause the rolled stock (13) to transit in correspondence with a shearing zone (20) and a scrapping zone (21), there being included reception means (30, 31) for the bars sheared to size and reception means (28) for the scrapped ends, the blade-bearing drums (11) being maintained in continuous rotation for the whole duration of the shearing cycle, the rotation speed of the blade-bearing drums (11) being made proportionate, on each occasion, to the specific speed of feed of the rolled stock (13) and to the desired base measurement of the bars, the base measurement being a desired shearing length which is a sub-multiple of the length of each bar to be sheared to size, the speed of rotation of the drums (11) being angularly constant and calculated to achieve a finite number of passes of the shearing blades (17) for the specific speed of feed of the rolled stock (13) and for a plurality of specific lengths of the bar (13) which are multiples of the base measurement. Shears for shearing to size rolled bars suitable to achieve the method as described above.
Abstract:
A multiple bar straightening and cutting system in bar steel rolling line, comprising a multiple bar straightening device, an input side guide pinch roller, a multiple running bar cutting device, and a rear tilting table having an output side guide pinch roller, the multiple running bar cutting device further comprising a fixed blade and a movable blade having a plurality of hole shapes suitably matching the cross-sectional shapes of the bar steel and the rear tilting table being tilted in the moving direction of a cutter in synchronous with the movement of the cutter of the multiple running bar cutting device.
Abstract:
La présente invention se rapporte à un dispositif pour libérer automatiquement et de manière autonome une liaison mécanique par câble ou cordage (4) entre deux éléments, dans une zone présentant des conditions d'atmosphère explosible, comprenant : un ensemble mécanique (11) sous forme d'une enceinte (21) qui est apte à être traversée par un câble ou cordage (4) et qui renferme au moins un sectionneur comprenant un burin (25) associé à une enclume (20) et des moyens de déplacement du burin (25) par rapport à l'enclume pour la découpe du câble ou cordage (4), des moyens de positionnement (15A, 15B, 15C) du câble ou cordage (4) permettant de faire passer le câble ou cordage (4) entre l'enclume (20) et le burin (25), et des moyens de mesure (16) de la tension du câble ou cordage (4); des moyens de contrôle et de commande (12) permettant de commander automatiquement le déclenchement du sectionneur. Le burin (25) et de préférence l'enclume (20) sont dans un matériau anti-étincelles, et notamment dans un alliage de cuivre-béryllium (Cu-Be).