DE1053459B - Extrusion press, in particular cable jacketing press, with a vertical pressure screw - Google Patents
Extrusion press, in particular cable jacketing press, with a vertical pressure screwInfo
- Publication number
- DE1053459B DE1053459B DEH28073A DEH0028073A DE1053459B DE 1053459 B DE1053459 B DE 1053459B DE H28073 A DEH28073 A DE H28073A DE H0028073 A DEH0028073 A DE H0028073A DE 1053459 B DE1053459 B DE 1053459B
- Authority
- DE
- Germany
- Prior art keywords
- press
- screw
- pressure screw
- conveyor
- extrusion press
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/22—Making metal-coated products; Making products from two or more metals
- B21C23/24—Covering indefinite lengths of metal or non-metal material with a metal coating
- B21C23/26—Applying metal coats to cables, e.g. to insulated electric cables
- B21C23/30—Applying metal coats to cables, e.g. to insulated electric cables on continuously-operating extrusion presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
DEUTSCHESGERMAN
Neben den bekannten Stempelpressen zur Herstellung von Metallsträngen, insbesondere von Rohren zum Ummanteln von Kabeln, haben sich Schnekkenpressen trotz des ihnen eigenen, geringen Bauaufwandes bisher noch nicht wesentlich durchzuheizen vermocht. Diese Schneckenpressen sind zur Aufrechterhaltung eines ununterbrochenen Preßvorganges bei gleichmäßiger Auspreßgeschwindigkeit besonders geeignet. Diese Pressen konnten sich hauptsächlich deshalb nicht in größerem Umfang in die Praxis einführen, weil bei der Beschickung mit dem zu verpressendon Metall Schwierigkeiten zu überwinden sind. Es ist bekannt, /. B. reines Blei in flüssigem Zustand einer Metallstrang-Schneckenpresse zuzuführen, und es skid auch Vorschläge gemacht worden, solche Pressen beispielsweise mit Aluminium in granulierter Form zu beschicken, wobei das Granulat aus einzelnen Trichtern unmittelbar in die Schneckengänge eingegeben wird.In addition to the known punch presses for the production of metal strands, in particular of pipes for sheathing cables, screw presses have not yet been able to heat themselves through, despite their inherent low construction costs. These screw presses are particularly suitable for maintaining an uninterrupted pressing process at a constant extrusion speed. The main reason why these presses have not been able to be put into practice on a large scale is that difficulties have to be overcome in loading the metal to be pressed. It is known /. B. to supply pure lead in the liquid state of a metal extrusion screw press, and proposals have also been made to charge such presses, for example, with aluminum in granulated form, the granules from individual hoppers being entered directly into the screw flights.
Bei einer Schneckenpresse mit stehend angeordneter Druckschnecke ergeben sich grundsätzlich Schwierigkeiten in der kontinuierlichen, gleichmäßigen Zuführung des Granulats. Wenn dieses nur durch sein Eigengewicht der Druckschnecke unter Umlenkung der Förderrichtung zugeleitet werden soll, so ergeben sich Stauungen des Förderstromes und damit eine unterschiedliche Dichte des von der Druckschnecke aufgenommenen Materials, weil das Granulat wegen der unterschiedlichen Form seiner Partikeln ein einheitliches und wechselndes Verhalten bei druckloser Förderung zeigt und teilweise infolge Ineinanderverhakcns zur Klumpenbildung neigt. Dadurch wird die Druckschnecke sehr ungleichmäßig gespeist, was sich hinsichtlich der Qualität des erzeugten Stranges ungunstig auswirkt.In the case of a screw press with an upright pressure screw, there are fundamentally difficulties in the continuous, even feed of the granulate. If only by its own weight the pressure screw is to be fed with deflection of the conveying direction, so result Congestion of the conveying flow and thus a different density of that taken up by the pressure screw Material because the granulate is a uniform because of the different shape of its particles and shows changing behavior with pressureless conveyance and partly as a result of interlocking tends to form clumps. As a result, the pressure screw is fed very unevenly, which in terms of has an unfavorable effect on the quality of the strand produced.
Auch bei Zuförderung des Granulats mittels besonderer Beschickungsschnecken, durch welche das Material dem Förderraum der Druckschneckc zugeführt wird, wie dies bereits bekannt ist, besteht, wenn auch in vermindertem Ausmaß, die Gefahr wechselnder Dichte und ungleichmäßiger Zufuhr des auszupressenden Materials mit den bereits beschriebenen Folgen.Even when the granulate is conveyed by means of special feed screws through which the Material is fed to the conveying chamber of the pressure screw, as is already known, exists when also to a lesser extent, the risk of changing density and uneven supply of what is to be squeezed out Material with the consequences already described.
Um diesen Schwierigkeiten zu begegnen, ist man nach einem weiteren Vorschlag dazu übergegangen, das Granulat mittels besonderer und von der eigentlichen Strangpresse unabhängiger Kolbenpressen zu Bolzen zu \erdichten und diese dann der Strangpresse zuzuführen. Diese bekanntgewordene Lösung erfordert jedoch einen erheblichen Aufwand und bezieht sich nicht auf eine Schneckenstrangpresse, sondern auf eine in üblicher Weise mit einem Aufnehmer und einem Preßstempcl versehene Kolbenstrangpresse.In order to counter these difficulties, a further suggestion was made to the granulate using special piston presses that are independent of the actual extrusion press Sealing bolts \ and then feeding them to the extrusion press. This solution that has become known requires However, a considerable effort and does not relate to a screw extruder, but to one Piston extruder provided in the usual way with a pick-up and a press ram.
Nach einem weiteren, nicht zum Stand eir Technik Strangpresse,After another, not the state of the art extrusion press,
insbesondere Kabelummantelungspresse, mit stehender Druckschneckein particular cable jacketing press, with vertical pressure screw
Anmelder:Applicant:
Hydraulik G.m.b.H., Duisburg, Mülheimer Str. 72Hydraulik G.m.b.H., Duisburg, Mülheimer Str. 72
Wilhelm Bockamp, Duisburg, Kurt Schmidt, Köln-Mulheim,Wilhelm Bockamp, Duisburg, Kurt Schmidt, Cologne-Mulheim,
und Heinz Böhmer, Koln-Ehrenfeld, sind als Erfinder genannt wordenand Heinz Böhmer, Koln-Ehrenfeld, have been named as inventors
gehörenden Vorschlag wird das ?u verpressende Material, beispielsweise Aluminium, ebenfalls in Form kompakter Bolzen dem Förderraum einer Schneckenstrangpresse zugeführt. Die Erfindung bezieht sich jedoch nicht auf die Zuführung von kompakten Bolzen bzw. Aufnehmereinsätzen, es liegt ihr vielmehr die Aufgabe zugrunde, eine Strangpresse mit stehender Druckschnecke mit dem zu verpressenden Metall in granulierter Form unmittelbar zu beschicken.belonging proposal will be the? u grouting material, for example aluminum, also in the form of compact bolts in the conveying chamber of a screw extruder fed. However, the invention does not relate to the feeding of compact bolts or transducer inserts, it is rather based on the task of an extrusion press with a standing Immediately feed the pressure screw with the metal to be pressed in granulated form.
Die Erfindung besteht darin, bei einer Strangpresse, insbesondere Kabelummantelungspresse, mit stehender Druckschnecke, der stuckiges bzw. granuliertes Preßmetall durch eine radial zur Sch necken ach se in den Förderraum einmündende Fördervorrichtung unter Druck zugeführt wird, die Fördervorrichtung aus mindestens zwei Aufnehmern mit wechselweise vorgehenden Preßstempeln auszubilden.The invention consists in an extrusion press, in particular a cable jacketing press, with an upright Pressure screw, the lumpy or granulated pressed metal through a radial axis to the screw into the Conveyor space opening conveyor device is supplied under pressure, the conveyor device from at least to train two transducers with alternately preceding press rams.
Vorteilhaft dienen im Rahmen der Erfindung zur Beschickung der Aufnehmer Vibrations - Förderrinnen, durch die pro Zeiteinheit eine bestimmte und genau zu bemessende Menge aus entsprechenden Fülltrichtern entnommen wird. Hierbei ist mittels einer Schalteinrichtung sichergestellt, daß die Vibrations-Förderrinnen während des Auspressen^ aus dem betreffenden Aufnehmer in den Schneckenförderraum im Arbeitstakt abgeschaltet werden. Das Füllen eines jeden Aufnehmers kann stufenweise auf mehrere aufeinanderfolgende Füllhube des Stempels verteilt werden. Wahrend dieser Füllperiode können die Vibrations-Förderrinuen in Tätigkeit bleiben.Advantageously, within the scope of the invention, vibration conveyors are used to feed the transducers. by means of a certain and precisely measured quantity per unit of time from the corresponding filling hoppers is removed. It is ensured by means of a switching device that the vibration conveyor troughs during the extrusion ^ from the relevant receiver into the screw conveyor space in the Work cycle can be switched off. The filling of each hopper can be carried out in stages over several consecutive ones Filling stroke of the punch can be distributed. During this filling period, the vibratory conveyors can stay in action.
Durch die Einrichtung gemäß der Erfindung zur Zufuhrung von stuckigem bzw. granuliertem l'reßmetall, insbesondere Aluminium, einer Metal 1strang-By the device according to the invention for the supply of lumpy or granulated l'reßmetall, in particular aluminum, a metal 1-strand
809 787*219809 787 * 219
Claims (1)
nanntet* Winkelpreßkopf 4 angeschlossen. 20 The basic structure of the press is in itself 15 2. Extrusion press according to claim 1, characterized and consists of the son corner housing 1, indicates that a wear-resistant bushing 2 and (6) are used for loading the pick-ups with vibration conveyor troughs (8), the pressure screw working upwards 3. At the end of the respective finishing process in the upper end of the screw conveyor space, a step can be switched off,
named * angle compression head 4 connected. 20th
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH28073A DE1053459B (en) | 1956-09-11 | 1956-09-11 | Extrusion press, in particular cable jacketing press, with a vertical pressure screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH28073A DE1053459B (en) | 1956-09-11 | 1956-09-11 | Extrusion press, in particular cable jacketing press, with a vertical pressure screw |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1053459B true DE1053459B (en) | 1959-03-26 |
Family
ID=7150766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH28073A Pending DE1053459B (en) | 1956-09-11 | 1956-09-11 | Extrusion press, in particular cable jacketing press, with a vertical pressure screw |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1053459B (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE455688C (en) * | 1928-02-07 | Fried Krupp Grusonwerk Akt Ges | Screw press with press and conveyor screw | |
FR680194A (en) * | 1928-08-15 | 1930-04-25 | Process for treating metals | |
US2380722A (en) * | 1942-03-05 | 1945-07-31 | Western Electric Co | Method of and apparatus for making articles |
DE887790C (en) * | 1941-01-31 | 1953-08-27 | Siemens Ag | Manufacture of aluminum sheaths of electrical cables with a screw press |
DE893902C (en) * | 1941-07-10 | 1953-10-19 | Theo Petri | High pressure delivery device for difficult plastic masses |
DE908851C (en) * | 1951-11-06 | 1954-04-12 | Kabelwerk Frowein G M B H | Screw press, in particular for sheathing cables |
-
1956
- 1956-09-11 DE DEH28073A patent/DE1053459B/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE455688C (en) * | 1928-02-07 | Fried Krupp Grusonwerk Akt Ges | Screw press with press and conveyor screw | |
FR680194A (en) * | 1928-08-15 | 1930-04-25 | Process for treating metals | |
DE887790C (en) * | 1941-01-31 | 1953-08-27 | Siemens Ag | Manufacture of aluminum sheaths of electrical cables with a screw press |
DE893902C (en) * | 1941-07-10 | 1953-10-19 | Theo Petri | High pressure delivery device for difficult plastic masses |
US2380722A (en) * | 1942-03-05 | 1945-07-31 | Western Electric Co | Method of and apparatus for making articles |
DE908851C (en) * | 1951-11-06 | 1954-04-12 | Kabelwerk Frowein G M B H | Screw press, in particular for sheathing cables |
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