摘要:
Drawing assembly (10) comprising two opposite and counter-rotating tracks (11), each consisting of a plurality of links (12) constrained to each other and each supporting a relative drawing clamp (13) which grips the product to be drawn (14), wherein each drawing clamp (13) is able to be selectively clamped inside a housing seating (21 ) of the relative link (12) by means of corresponding rapid attachment/detachment members (22) associated with the link (12). The drawing clamp (13) comprises two external hollows (15, 16) of different sizes and in each of which a determinate range of cross sections of the product to be drawn (14) is positioned. The invention also relates to a corresponding method for drawing metal products.
摘要:
Die Erfindung betrifft eine Vorrichtung zum Einfädeln von Rohren oder Stangen in ein Ziehaggregat mit umlaufenden Ketten, die das Werkstück am äußeren Umfang greifen und kontinuierlich durch einen dem Ziehaggregat zugeordneten, in einem Ziehringhalter angeordneten Ziehring ziehen, sowie mit einer aus der Ziehachse entfernbaren Zange zum Erfassen der am Rohr- oder Stangenanfang ausgebildeten Ziehangel und Führen des Rohranfanges in die Ziehvorrichtung. Erfindungsgemäß wird vorgeschlagen, daß der Ziehringhalter (1) zusammen mit dem Ziehring (2) in und entgegen der Ziehrichtung um einen mindestens der Einspannlänge (L1) der umlaufenden Kette (6) des Ziehaggregates (5) entsprechenden Weg (L) verschiebbar geführt ist, daß die mechanisch schließende und öffnende Zange (10) in einem Zangenwagen (9) angeordnet ist, der parallel zur Ziehrichtung unabhängig vom Ziehringhalter (1) linear angetrieben zwischen Ziehring (2) und Ziehaggregat (5) verschiebbar ist und daß das Rohr (11) oder die Stange auf der dem Ziehring (2) und dem Ziehaggregat (5) abgewandten Seite zwischen Treibrollen (13) eingespannt ist.
摘要:
Klemmmittel zum Klemmen von stangenförmigen Gütern, wobei das Klemmmittel eine Hülse (1) aufweist, die an einem ersten stirnseitigen Ende (2) oder an einem zweiten gegenüberliegenden stirnseitigen Ende (3) beginnende Schlitze aufweist, wobei die Schlitze von dem ersten Ende (2) der Hülse (1) zu dem zweiten Ende (3) der Hülse (1) durchgehend verlaufen und die Hülse (1) durch die Schlitze in Segmente (1a,1b,1c,1d) unterteilt ist.
摘要:
According to the invention, a drawing carriage (16) is made to execute a forward stroke and a return stroke alternately, along longitudinal guides on a drawing bench (11), between two opposite drawing heads (12), each disposed in one end area of the said bench (11) and each including at least one draw plate, by means of driving horizontally with a reciprocating motion. At least one piece to be drawn is pulled in each forward stroke and in each return stroke by the said drawing carriage (16), being made to pass through a corresponding draw plate in the drawing head (12) from which the said carriage (16) is made to move away, in this way, the carriage (16) executes working strokes in both directions of horizontal movement along the corresponding guides, causing at least one piece to be drawn in each working stroke.
摘要:
According to the invention, a drawing carriage (16) is made to execute a forward stroke and a return stroke alternately, along longitudinal guides on a drawing bench (11), between two opposite drawing heads (12), each disposed in one end area of the said bench (11) and each including at least one draw plate, by means of driving horizontally with a reciprocating motion. At least one piece to be drawn is pulled in each forward stroke and in each return stroke by the said drawing carriage (16), being made to pass through a corresponding draw plate in the drawing head (12) from which the said carriage (16) is made to move away, in this way, the carriage (16) executes working strokes in both directions of horizontal movement along the corresponding guides, causing at least one piece to be drawn in each working stroke.
摘要:
A drawing machine includes a plate (10), a clamping device (20), a driving device (30) and a cam (40) which has a groove (41) and a ridge portion (42). The clamping device includes two jaws movable on a first surface of the plate, a following roller (34) movable on a second surface of the plate and a linkage for connecting the jaws to the following roller. The driving device (30) includes a following roller (34) attached to the second surface of the plate. wherein the following roller (34) of the driving device (30) is received in the groove (41) of the cam and moves between the first and second positions so that the ridge portion (42) drives the plate (10) to reciprocate horizontally and control the clamping device (20) to switch between the clamping and releasing modes.
摘要:
An einer Ziehmaschine (1) mit 2 im steten Wechsel arbeitenden Ziehschlitten (5, 35) wird die Steuerung der Spannbacken (6, 7) von einer am Maschinenkörper (2) angeordneten Kurve (11) vorgenommen. Ein vom Ziehschlitten abkragender Spannhebel (10) fährt über die Kurve und drückt dabei die Spannbacken (6, 7) an den Draht (8) an. Damit der Draht nicht auch dann eingespannt wird, wenn der Ziehschlitten auf seinem Rückweg an der Kurve (11) vorbeifährt, ist die Kurve auf einer am Maschinenkörper angelenkten Zunge (16) ausgebildet, die auf dem Rückweg des Ziehschlittens von dem Spannhebel (10) bzw. der daran gelagerten Rolle (22) beiseite gedrückt wird. Die Zunge wird von einer Feder (14) gegen einen Anschlag (18) gedrückt und schnappt zurück, sobald die Rolle (22) im vorderen Totpunkt des Schlittenhubes die Zunge (16) passiert hat. In der kinematischen Kette zwischen dem Hebel (10) und den Spannhebeln (38) ist ein Torsionsstab (19) für ein "weiches" Andrücken der Spannbacken an den Draht vorgesehen. Am Ende der Ziehstrecke eines jeden Spannwagens ist eine Entriegelungsvorrichtung (21) vorgesehen.
摘要:
An apparatus, method and composition for long length tubing includes continuous production of long length seamless aluminum tubing suitable for use as coiled tubing in hydrocarbon wells. A 2XXX aluminum alloy may be used in combination with a continuous casting/extrusion apparatus using aluminum from a melt. Other metals may be used, as well as continuously cast rod from a casting wheel and belt or conform extruder, which is processed to form a hollow and then sized by drawing.
摘要:
The invention relates to a drawing machine comprising a drawing die (1) and a continuously working drawing device, said drawing device comprising only one closed drawing member that is guided around axis-parallel wheels (4) and is driven in a controlled manner via at least one of the wheels (4). The drawing member is linked with clamping devices (6) carrying clamping chucks (5) that are controlled and moved towards one another and apart from another to grip a wire (7), tube or profile to be drawn. In an embodiment, the clamping chucks (5) are retained by retainer elements (11) that extend through a drawing element (3) linked with the clamping device (6). One clamping chuck (5) each of the clamping chucks linked with the first drawing element (3) interacts with the clamping chuck (5) associated with the second drawing element (3). In this manner, the clamping chucks (5) can be moved towards one another without a force directed transversely to the moving direction of the drawing element (3) acting upon the respective drawing element (3), which reduces, compared to the prior art, the wear of the drawing elements.