DE1009799B - Screw press - Google Patents
Screw pressInfo
- Publication number
- DE1009799B DE1009799B DEF15029A DEF0015029A DE1009799B DE 1009799 B DE1009799 B DE 1009799B DE F15029 A DEF15029 A DE F15029A DE F0015029 A DEF0015029 A DE F0015029A DE 1009799 B DE1009799 B DE 1009799B
- Authority
- DE
- Germany
- Prior art keywords
- mandrel
- screw
- screw press
- press
- speed
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
Schneckenpresse Die Erfindung betrifft eine Schneclçen,presse, inst besondere zur Verarbeitung thermoplastischer Werkstoffe, mit einem innerhalb des Preßmundstüeks angeordneten Dorn.Screw press The invention relates to a Schneclçen, press, inst special for processing thermoplastic materials, with one within the Preßmundstüeks arranged mandrel.
Es ist an sich bekannt, innerhalb des Mundstücks von Schneckenpressen einen sogenannten Dorn anzuordnen, der auch als Hohl dorn ans gebildet sein kann. It is known per se to be inside the mouthpiece of screw presses to arrange a so-called mandrel, which can also be formed as a hollow mandrel ans.
Im allgemeinen sind solche Dorne innerhalb des Mund stücks feststehend eingebaut. Die Befestigungsstege ergeben hierbei eine Behinderung des Materialaus flusses, hinter denen sich Stauungen bilden können, die eventuell auch zum Verbrennen des temperaturempfindlichen Materials und damit zum Ausschuß führen können.. Aus diesem Grund hat man, auch bereits vorgeschlagen, die Preßschnecke selbst am Schneckenende zum Hohl dorn auszubilden. Auf diese Weise ergibt sich ein berührungsloser Laufspalt zwischen PreßschnecIce und Zylinderwand. Diese An ordnung hat jedoch den Nachteil, daß die über den Umfang der Preßschnecke ungleichmäßige Materialförderung innerhalb des Preßmundstücks nicht völlig ausgeglichen, wird, da der Dorn zusammen mit der Schnecke umläuft.In general, such mandrels are fixed within the mouth piece built-in. The fastening webs result in a hindrance to the material river, behind which congestion can form, which may also burn of the temperature-sensitive material and thus lead to rejects .. Off For this reason, it has already been proposed that the press screw itself at the end of the screw to form a hollow mandrel. This results in a contactless running gap between the press bolt and the cylinder wall. However, this arrangement has the disadvantage that the uneven material conveyance within the circumference of the press screw of the press mouthpiece is not completely balanced, because the mandrel together with the Snail revolves.
Diesem überstand hilft die Dorn,anordnunlg nach der vorliegenden Erfindung ab. Das Neue dieser An; ordnung wird dann gesehen, daß der Dorn für sich drehbar gelagert ist. The mandrel helps this protrusion, an arrangement according to the present one Invention from. The novelty of this kind; order is then seen that the thorn for itself is rotatably mounted.
Dabei kann gemäß der weiteren Erfindung der Dorn unabhängig von der Schnecke, vorzugsweise mit einer von der Drehzahl der Schnecke abweichenden Drehzahl angetrieben werden. Auf diese Weise läßt sich. je nach Wahl von. Drehzahl oder Drehrichtung oder von beiden. am Werkstück ein Drall erzeugen, ein vorhang dener Dra,ll verändern oder aufheben. Wird die Schneckenpresse so ausgeführt, daß die Drehzahl während des Betriebes einstellbar ist, so ergeben sich ganz neue Möglichkeiten zur fortlaufenden Erzeugung von Rohren Schläuchen und anderen Hohlkörpern, von Ummantelungen von Kabeln, Drähten u. dgl. Im letzterpen; Fall kann in an sich bekannter Weise der Dorn als Hohldosrn zur Durchführung von Teilen., wie Kaheilen, Drähten od. dgl., die ummantelt werden sollen, ausgebildet sein. According to the further invention, the mandrel can be independent of the Screw, preferably with a speed that differs from the speed of the screw are driven. In this way you can. depending on the choice of. Speed or direction of rotation or both. Create a twist on the workpiece, change a curtain of the twist or cancel. If the screw press is designed so that the speed during of operation is adjustable, there are completely new possibilities for continuous Production of pipes, hoses and other hollow bodies, of cable sheathing, Wires and the like in the latter; Case can in a known manner as the mandrel Hohldosrn for the implementation of parts. Such as Kaheilen, wires or the like. The coated should be trained.
Ebenso ist es möglich, den Dorn so auszubilden, daß er heiz- oder kühlbar ist, um verschiedenen betrieb.li eben Anforderungen bzw. den Materialeigenschaften entsprechen. zu können. It is also possible to design the mandrel so that it is heated or can be cooled to meet various operational requirements or the material properties correspond. to be able to.
Eine weitere wichtige Möglichkeit besteht darin, daß der Dorn über das Preßmundstück vorsteht und gegebenenfalls mit anderen Bearbeitungsvorrichtungen zusammenarbeitet. Another important option is to have the mandrel over the die protrudes and, if necessary, with other processing devices cooperates.
In der Zeichnung ist ein Ausführungsbeispiel des Gegenstands der Erfindung schematisch dargestellt, und zwar in einem Axialschnitt durch eine Schneckenpresse. In the drawing, an embodiment of the subject matter is shown in FIG Invention shown schematically, in an axial section through a screw press.
Hierbei sind alle unwesentlichen Teile foftgelassen und lediglich der Schneckenzylinder 1 mit dem Mund. stück 2 sowie der Preßschnecke 3 dargestellt. Innerhalb einer Bohrung der Preßschnecke 3 ist ein Schaft 4 gelagert, der unabhängig von der Schnecke 3 drehbar ist, beispiels,weise kann er fliegend innerhalb der Schnecke gelagert sein. Nach vorn erweitert sich der Schaft 4 zu einem Dorn 5, der zusammen mit dem Mundstück 2 einen ringförmigen Austrittsquerschnitt frei läßt, aus dem ein Rohr, Schlauch 8 od. dgl. aus dem zu verarbeitenden Material austreten kann. Die Schneckengänge 7 sind hierbei in gleichmäßiger Tiefe dargestellt. Selbstverständlich ist es auch möglich, jede andere bekannte Schneckenform zu wählen. Here all insignificant parts are left out and only the screw cylinder 1 with the mouth. piece 2 and the screw press 3 shown. Within a bore of the press screw 3, a shaft 4 is mounted, which is independent is rotatable by the screw 3, for example, it can be on the fly within the screw be stored. Towards the front, the shaft 4 widens to form a mandrel 5, which together with the mouthpiece 2 leaves an annular outlet cross-section free from which a Pipe, hose 8 or the like. Can emerge from the material to be processed. the Screw threads 7 are shown here at a uniform depth. Of course it is also possible to choose any other known screw shape.
Wesentlich ist lediglich, daß der Dorn 5 innerhalb der Schnecke 3 drehbar gelagert ist. Dabei kann auch ein unabhängig von dem Antrieb der Preßschnecke 3 auf den Dorn wirkender Antrieb vorgesehen; sein.It is only essential that the mandrel 5 within the screw 3 is rotatably mounted. It can also be independent of the drive of the press screw 3 acting on the mandrel drive provided; be.
Weiterhin, ist es möglich, den Dorn. 5 hohl auszubilden um seinen Innenraum 6 zu kühlen oder zu heizen. Ebenso kann der Dorn 5 zusammen mit dem Schaft 4 hohl ausgebildet sein, um als Zuführung für Kabel, Drähte oder andere zu ummantelnde Gegen stände zu dienen. Furthermore, it is possible to use the mandrel. 5 to form hollow around his To cool or heat interior 6. Likewise, the mandrel 5 together with the shaft 4 be hollow to be sheathed as a feed for cables, wires or other Objects to serve.
Schließlich kann der Dorn 5 über das Mundstück 2 der Preßschnecke hinaus verlängert sein, um mit einem weiteren vorgeschalteten Bearbeitungswerkzeug zusammenzuwirken. Finally, the mandrel 5 can over the mouthpiece 2 of the press screw Be extended to with another upstream machining tool to work together.
SchlieBlich ist es auch möglich, den, Dorn oder das Mundstück oder beide in bestimmter Weise zu profilieren und damit dem Werkstück einen bestimmten Querschnitt zu geben. Finally, it is also possible to use the, mandrel or the mouthpiece or to profile both in a certain way and thus the workpiece a certain To give cross-section.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF15029A DE1009799B (en) | 1954-06-23 | 1954-06-23 | Screw press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF15029A DE1009799B (en) | 1954-06-23 | 1954-06-23 | Screw press |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1009799B true DE1009799B (en) | 1957-06-06 |
Family
ID=7087763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF15029A Pending DE1009799B (en) | 1954-06-23 | 1954-06-23 | Screw press |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1009799B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3063095A (en) * | 1958-09-17 | 1962-11-13 | Union Carbide Corp | Apparatus for distributing plastic material |
DE1140336B (en) * | 1957-10-26 | 1962-11-29 | Solvic Ind Delle Materie Plast | Injection head for a screw press for the production of plastic pipes |
DE2925125A1 (en) * | 1979-06-22 | 1981-01-08 | Klaus P Griese | Tube extruder for ceramic tube - consisting of an extrusion cylinder, with driven shaft and worm |
EP0095010A1 (en) * | 1982-05-25 | 1983-11-30 | Luigi Bartoli | Subterranean insulated tube, method for its manufacture and apparatus for carrying out said method |
EP0239858A1 (en) * | 1986-04-01 | 1987-10-07 | AB Tetra Pak | A machine for the compression of a bulky mass |
-
1954
- 1954-06-23 DE DEF15029A patent/DE1009799B/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1140336B (en) * | 1957-10-26 | 1962-11-29 | Solvic Ind Delle Materie Plast | Injection head for a screw press for the production of plastic pipes |
US3063095A (en) * | 1958-09-17 | 1962-11-13 | Union Carbide Corp | Apparatus for distributing plastic material |
DE2925125A1 (en) * | 1979-06-22 | 1981-01-08 | Klaus P Griese | Tube extruder for ceramic tube - consisting of an extrusion cylinder, with driven shaft and worm |
EP0095010A1 (en) * | 1982-05-25 | 1983-11-30 | Luigi Bartoli | Subterranean insulated tube, method for its manufacture and apparatus for carrying out said method |
EP0239858A1 (en) * | 1986-04-01 | 1987-10-07 | AB Tetra Pak | A machine for the compression of a bulky mass |
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