DE645332C - Tube homogenizing device for plastic masses - Google Patents

Tube homogenizing device for plastic masses

Info

Publication number
DE645332C
DE645332C DEH143510D DEH0143510D DE645332C DE 645332 C DE645332 C DE 645332C DE H143510 D DEH143510 D DE H143510D DE H0143510 D DEH0143510 D DE H0143510D DE 645332 C DE645332 C DE 645332C
Authority
DE
Germany
Prior art keywords
homogenizing device
heated
plastic masses
flow
tube
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.)
Expired
Application number
DEH143510D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAMBURGER LAB fur PLASTISCHE
Original Assignee
HAMBURGER LAB fur PLASTISCHE
Publication date
Priority to DEH143510D priority Critical patent/DE645332C/en
Application granted granted Critical
Publication of DE645332C publication Critical patent/DE645332C/en
Expired legal-status Critical Current

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
    • B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

Bei der Herstellung von plastischen Massen kommt es bekanntlich darauf an, ein Material von gleichmäßiger Dichte zu erhalten.As is well known, it is important to use a material in the manufacture of plastic masses of uniform density.

Hierzu werden vielfach für die Herstellung von stabfönnigcn Stücken Stabpressen benutzt, die einen mit oder ohne Heizung bzw. Kühlung versehenen Preßzylinder besitzen. Es ist auch bekannt, in den Formkanal oder in den Preßzylinder irgendeinen Heizkörper einzubauen, an dem die Masse vor ihrer zur Homogenisierung erforderlichen Zusammenpressung vorbeistreicht. Es gehört auch zum allgemeinen Wissenstand der Technik, einen in einem Strom befindlichen Körper eine sog, stromgünstige Tropfenform zu geben.For this purpose, bar presses are often used for the production of rod-shaped pieces, which have a press cylinder provided with or without heating or cooling. It is also known to have any heating element in the molding channel or in the press cylinder to be installed at which the mass is to be compressed before it is required for homogenization sweeps past. It also belongs to the general state of the art of technology, one To give a body located in a stream a so-called, stream-favorable drop shape.

Gegenüber den bekannten Vorrichtungen zum Homogenisieren von plastischen Massen betrifft die vorliegende Erfindung einen Honiogenisierapparat, der durch zweckmäßige Vereinigung von zum Teil bekannten Merkmalen eine einfache, leicht kontrollier- und regelbare sowie einwandfreie Herstellung der plastischen Masse ermöglicht.Compared to the known devices for homogenizing plastic masses The present invention relates to a Honiogenisierapparat, which by expedient Combination of some known features a simple, easy to control and allows controllable and flawless production of the plastic mass.

Zur Erreichung dieses Zweckes wird eine Homogenisiervorrichtung benutzt, die aus einer Anzahl Rohrstücke besteht, welche einerseits vermöge ihrer den Gutstrom mehr oder weniger verengenden Querschnitte und vermöge ihrer Längenwahl einen bestimmbaren Druckkörper bilden und anderseits durch Dampfumspülung beheizbar sind. Erllndungsgemäß wird zwischen dieser Homogenisiervorrichtung und dem Ende der Preßschraube ein gleichzeitig mitbeheizbarer feststehender Dorn mit Gleichrichterflügeln angeordnet, die zweckmäßig in Richtung des Gutsiromes einen bekannten strombegünstigenden tropfenformigen Querschnitt erhalten. Durch« diese Vereinigung wird eine richtige Einströniung des Materials in die vorgenannte Homogenisiervorrichtung bei gleichzeitiger erforderlicher Vorbehandlung erreicht. Trotz der gleichzeitigen Erreichung dieser verschiedenen Wirkungen läßt sich die erfindungsgemäße Vorrichtung einfach herstellen und einbauen sowie bequem handhaben und regeln.To achieve this purpose, a homogenizing device is used which consists of consists of a number of pipe pieces, which on the one hand by virtue of their the flow of material more or less narrowing cross-sections and by virtue of their choice of length a determinable one Form pressure bodies and, on the other hand, can be heated by flushing with steam. According to the invention between this homogenizing device and the end of the press screw there is a stationary one that can be heated at the same time Mandrel arranged with rectifier wings, which is expedient in the direction of the Gutsiromes obtained a known flow-promoting drop-shaped cross-section. By" this union becomes a proper inflow of the material into the aforementioned homogenizer achieved with simultaneous required pretreatment. Despite the simultaneous achievement of these different The device according to the invention can be produced and installed in a simple manner as well as easy to use and control.

In der Zeichnung ist der Erfindungsgedanke in einer beispielsweisen Ausführungsform dargestellt. In the drawing, the concept of the invention is shown in an exemplary embodiment.

Die Druckschnecke a liegt nicht mehr in einem geheizten Zylinder b. The pressure screw a is no longer in a heated cylinder b.

Das Plastizieren des Materials findet bei dieser Vorrichtung nicht mehr im vorderen Teil des erhitzten Zylinders statt, sondern erst bei der Berührung der erhitzten Gleichrichterflügel c und des erhitzten Verteilerdorns d. In this device, the plasticizing of the material no longer takes place in the front part of the heated cylinder, but only when the heated rectifier blades c and the heated distributor mandrel d come into contact.

Das Homogenisieren zu einer gleichmäßigen Dichte tritt dagegen erst beim Durchgang durch die erhitzten Röhren e ein.The homogenization to a uniform density, on the other hand, only occurs when passing through the heated tubes e .

Die für die einzelnen Materialien erforderliehen Druckabstufungen werden durch die Verlängerung oder Verkürzung der heizbaren Röhren oder den dadurch erzielten Reibungswiderstand sowie durch deren Temperatur erreicht. The pressure levels required for the individual materials are determined by the Extension or shortening of the heatable tubes or the resulting frictional resistance as well as by their temperature.

Claims (1)

Patentanspruch:Claim: Röhrenhomogenisiervorrichtung für plastische Massen mit heizbaren Einrichtungen im Gutstrom, dadurch gekennzeichnet, daß zwischen der Homogenisiervorrichtung, die aus einer Anzahl Rohrstücke besteht und dabei im Gutstrom als Druckbildungskörper wirkt sowie durch Dampf- umspülung der Rohrstücke beheizbar ist, und dem Ende der Preßschraube ein festsitzender mitbeheizbarer Dorn mit Gleichrichterflügeln angeordnet ist, die in Richtung des Gutstromes einen bekannten strombegünstigenden tropfenförmigen Querschnitt besitzen.Tube homogenizing device for plastic masses with heatable devices in the material flow, characterized in that between the homogenizing device, which consists of a number of pipe pieces exists and acts as a pressure-forming body in the material flow and can be heated by steam flushing the pipe sections, and at the end of the clamping screw a fixed mandrel that can be heated with rectifier blades is arranged, which in the direction of the flow of material is a known flow-promoting teardrop-shaped Own cross-section. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEH143510D Tube homogenizing device for plastic masses Expired DE645332C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH143510D DE645332C (en) Tube homogenizing device for plastic masses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH143510D DE645332C (en) Tube homogenizing device for plastic masses

Publications (1)

Publication Number Publication Date
DE645332C true DE645332C (en) 1937-05-26

Family

ID=7179194

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH143510D Expired DE645332C (en) Tube homogenizing device for plastic masses

Country Status (1)

Country Link
DE (1) DE645332C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316335A (en) * 1963-12-24 1967-04-25 Continental Can Co Method and apparatus for continuously extruding and foaming plastics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316335A (en) * 1963-12-24 1967-04-25 Continental Can Co Method and apparatus for continuously extruding and foaming plastics

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