DE920270C - Apparatus for producing synthetic resin press mixes - Google Patents

Apparatus for producing synthetic resin press mixes

Info

Publication number
DE920270C
DE920270C DEN1508D DEN0001508D DE920270C DE 920270 C DE920270 C DE 920270C DE N1508 D DEN1508 D DE N1508D DE N0001508 D DEN0001508 D DE N0001508D DE 920270 C DE920270 C DE 920270C
Authority
DE
Germany
Prior art keywords
nozzle
screw
synthetic resin
producing synthetic
resin 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.)
Expired
Application number
DEN1508D
Other languages
German (de)
Inventor
Richard Dr Hessen
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.)
Sud-West-Chemie GmbH
Original Assignee
Sud-West-Chemie GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sud-West-Chemie GmbH filed Critical Sud-West-Chemie GmbH
Priority to DEN1508D priority Critical patent/DE920270C/en
Application granted granted Critical
Publication of DE920270C publication Critical patent/DE920270C/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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling
    • 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
    • B29C48/25—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
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/51—Screws with internal flow passages, e.g. for molten material
    • B29C48/515—Screws with internal flow passages, e.g. for molten material for auxiliary fluids, e.g. foaming agents
    • 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
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
    • B29C48/845—Heating
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
    • B29C48/85—Cooling

Description

Vorrichtung zum Herstellen von Kunstharzpreßmischungen Die Erfindung bezieht sich auf eine Vorrichtung zum Herstellen von Kunstharzpreßmischungen durch Durchpressen eines Gemenges von härtbaren Kunstharzen und Füllstoffen und gegebenenfalls Zusatzstoffen bzw. von Gemengen, die die zur Bildung von härtbaren Kunstharzen erforderlichen Bestandteile enthalten, wie z. B. Harze im Novolakzustand zusammen mit Härtungsmitteln, wie Hexamethylentetramin, unter Erhitzen durch Düsen mit Hilfe von Druckschnecken, wobei für ein Temperaturgefälle entgegen der Austrittsrichtung der Düse, d. h. für eine in Richtung des Austrittsendes steigende Beheizung gesorgt wird.Apparatus for producing synthetic resin molding compounds The invention relates to an apparatus for making synthetic resin molding compounds through Pressing through a mixture of curable synthetic resins and fillers and optionally Additives or mixtures that are necessary for the formation of curable synthetic resins Contain components such as B. Resins in the novolak state together with hardeners, like hexamethylenetetramine, with heating through nozzles with the help of pressure screws, wherein for a temperature gradient opposite to the exit direction of the nozzle, d. H. for heating that increases in the direction of the outlet end is provided.

Endet bei solchen Vorrichtungen die Druckschnecke in einem nicht mit Schneckengängen besetzten Teil, der umgeben ist von einem ebenfalls zylindrischen Teil am Ende des Gehäuses, so wird die Rohmasse in Richtung auf das Austrittsende zu immer mehr verdichtet und gleichzeitig bis zur Schmelztemperatur des Harzes vorgewärmt. In such devices, the pressure screw does not end in one with worm flights, which is surrounded by a cylindrical part Part at the end of the housing, so the raw mass is towards the outlet end increasingly compressed and at the same time preheated to the melting temperature of the resin.

Die so vorgewärmte Masse gelangt nun in den Ringraum zwischen dem Schneckenende und den es umgebenden Wandungen der Düse. In diesem ringförmigen Schlitz, der durch den sich drehenden Endteil der Schnecke und die diesen Endteil umgebenden festen Düsenwandungen gebildet wird, erfährt die Masse eine Reibung unter gleichzeitigem Pressen, d. h. dieser Teil ist in seiner wirkung der eigentlichen Kunstharzpreßmischungsherstellungsdüse vergleichbar, z. B. des Patents GI6 178. The mass preheated in this way now enters the annular space between the End of the screw and the walls of the nozzle surrounding it. In this ring-shaped slot that by the rotating end part of the screw and those surrounding this end part solid nozzle walls are formed, the mass experiences friction with simultaneous pressing, d. H. this part is the real one in its effect Synthetic resin molding compound production nozzle comparable, e.g. B. Patent GI6 178.

Durch das Sichdrehen des Schneckenendtellers wird eine Reibung hervorgebracht, da die Masse in Drehrichtung mitgenommen wird und an den Wandungen des feststellenden Düsenraumes eine Reibung bewirkt, ÄVeiin nuii die Oberflächen des Schneckenendes und die inneren Düseiiflächen glatt sind, beschreibt die die Düse durchströmende Masse den Weg einer sehr steilen Schraube. Die Richtungsänderung ist also nur gering und die Reibung infolgedessen klein, so daß also die Knetwirkung unter Umständen nicht ausreichend ist. The turning of the screw end plate creates friction, because the mass is taken along in the direction of rotation and on the walls of the locking device The nozzle chamber causes friction, but only the surfaces of the screw end and the inner nozzle surfaces are smooth, describes the one flowing through the nozzle Earth the way of a very steep screw. The change in direction is therefore only slight and the friction is small as a result, so that the kneading effect may be is not sufficient.

Gemäß der Erfindung wird nun vorgeschlagen, in dieser eigentlichen Düse für Mitnehmer zu sorgen, die an dem Schneckenendteil oder den Wandungen der Düse angebracht sein können oder gleichzeitig an beiden Teilen. According to the invention it is now proposed in this actual To provide nozzle for drivers that are attached to the screw end part or the walls of the Nozzle can be attached or at the same time on both parts.

Es kann hierbei das Schneckenende kegelig oder zylindrisch ausgebildet werden. Die den Endteil umgebenden Düseninnenfläcben können zylindrisch oder kegelig sein. Der Zwischenraum zwischen dem sich drehenden Endteil und den Düsenwandungen kann sich auch nach dem Austrittsende zu verjiingen oder erweitern. Für gewöhnlich wird die Düsenwandung feststehend ausgebildet, jedoch kann sie auch drehbar gestaltet sein. The end of the screw can be conical or cylindrical will. The inner nozzle surfaces surrounding the end part can be cylindrical or conical be. The space between the rotating end part and the nozzle walls can also narrow or widen after the end of the exit. Usually the nozzle wall is designed to be stationary, but it can also be designed to be rotatable be.

Durch diese Ausbildung wird die Masse in der Drehrichtung mitgenommen, und es tritt ein besseres Durchkneten und Durchmischen ein, da die Masse einen längeren W eg, und zwar den einer flacheren Schraube beschreibt. Through this training, the mass is taken along in the direction of rotation, and better kneading and mixing occurs because the mass takes longer W eg describes that of a flatter screw.

Die einzelnen Teilchen der Masse in der Düse werden dadurch in eine verschieden große Relativbewegung gebracht, und in jedem Fall wird die Reibung und damit die Knetwirkung gesteigert. The individual particles of the mass in the nozzle are thereby turned into a differently large relative movement brought, and in each case the friction and thus increasing the kneading effect.

Gute Ergebnisse werden z. B. erreicht, wenn in Längsrichtung des Düsenendteiles Stege aufgeschweißt werden oder von vornherein der Schneckenkörper mit axial verlaufenden Stegen an diesem Endteil ausgebildet wird. Auch können solche Stege allein an dem feststehenden Düsenteil angebracht werden oder zweckmäßig sowohl an dem sich drehenden Sdineckenteil als auch an dem feststehenden Düsenteil. Diese Stege brauchen nicht in axialer Richtung angebracht zu sein, sie können auch im Winlæl angeordnet werden oder z. B. teilweise im Winkel und teilweise axial vorgesehen sein. In manchen Fällen wird auch ein Erfolg schon erreicht, wenn eine Riffelung vorzugsweise in axialer Richtung vorgenommen wird. Good results are z. B. achieved when in the longitudinal direction of the Nozzle end webs are welded on or the screw body from the outset is formed with axially extending webs on this end part. Also can such Bridges are attached alone to the fixed nozzle part or both appropriately on the rotating south corner part as well as on the fixed nozzle part. These Bars do not need to be attached in the axial direction, they can also be in the Winlæl can be arranged or z. B. provided partially at an angle and partially axially be. In some cases a success is already achieved when a corrugation is preferably carried out in the axial direction.

In der Zeichnung werden bevorzugte Ausführungsformen gemäß der Erfindung dargestellt, und zwar zeigt Fig. I in schematischer Darstellung die Düse mit auf dem Schneckenendteil angebrachten Stegen, Fig. 2 einen Querschnitt durch die Vorrichtung gemäß Fig. I und Fig. 3 und 4 Querschnitte des Düsenteils, wobei in Fig. 3 Stege auf dem feststehenden Düsenteil vorgesehen sind und bei Fig. 4 Stege sowohl auf dem sich drehenden als auch auf dem feststehen den Teil. In the drawing are preferred embodiments according to the invention shown, namely Fig. I shows the nozzle in a schematic representation webs attached to the screw end part, FIG. 2 shows a cross section through the device according to FIG. 1 and FIGS. 3 and 4, cross-sections of the nozzle part, with webs in FIG are provided on the fixed nozzle part and in Fig. 4 webs both on the rotating as well as the stationary part.

Durch die Schnecke I, die in einem Gehäuse 2 arbeitet, wird das Kunstharzgut, das durch die Öffnung 6 zugeführt wird, nach dem Ende (in der Zeichnung rechts) zugeführt und dabei auf Schmelztemperatur durch die Heizung der Schnecke mit Hilfe der Heizausnehmungen 4 erwärmt, wobei eine Isühlung mit Hilfe der Ausnehmungen 3 vorgenommen werden kann. Auch die Düsenwandung kann geheizt oder gekühlt werden oder beides gleichzeitig geschehen. Through the screw I, which works in a housing 2, the synthetic resin material, which is fed through the opening 6, after the end (in the drawing on the right) fed and at the same time on melting temperature by heating the screw with the help of the heating recesses 4 is heated, with cooling with the aid of the recesses 3 can be made. The nozzle wall can also be heated or cooled or both happen at the same time.

Entstehende Gase können durch den Kanal 5 entweidien. Am Austrittsende kann der Düsenmantel 8 zylindrisch ausgebildet sein und eingesetzte Buchsen g enthalten, die den Schnecke endteil 7 umgeben. Gases formed can escape through channel 5. At the exit end the nozzle jacket 8 can be cylindrical and contain inserted sockets g, which surround the screw end part 7.

Es ist gleichgültig, auf welche Weise der Schlitz zwischen dem sich drehenden Endteil 7 und dem feststehenden Endteil 8, g geschaffen wird und ob dieser Schlitz einen Ringraum darstellt oder sich nach dem Austrittsende oder nach dem entgegengesetzten Ende zu erweitert oder auch anders geformt ist. It does not matter in which way the slot is between itself rotating end part 7 and the fixed end part 8, g is created and whether this Slot represents an annular space or after the exit end or after the opposite end to widened or shaped differently.

Die auf dem Schneckenendteil 7 angebrachten Stege 10 und gegebenenfalls die auf dem Düsenendteil g, g angebrachten Stege 1 1 nehmen die Masse mit und sorgen für größeres Reiben und I<neten, so daß ein innigeres gleidimäfligeres Durchmisclaen hier stattfindet. The webs 10 and optionally attached to the screw end part 7 the webs 1 1 attached to the nozzle end part g, g take the mass with them and take care of them for greater rubbing and grooves, so that more intimate, smooth mixing takes place here.

Claims (1)

PATENTANSPRUCH Vorrichtung zum Herstellen von Kunstharzpreßmischungen, bestehend aus einem Ringraum mit sich drehendem Innenteil und ihn umgebender Außenwandung, durch den das Gemenge unter Erwärmen mittels einer Druckschnecke durchgepreßt wird, dadurch gekennzeichnet, daß am Austrittsende der Düse entweder an dem nicht mit Schneckengängen versehenen zylindrischen Ende der Druckschnecke oder an der dieses Schneckenende umgebenden Außenwandung oder an beiden Teilen NIitnehmer vorgesehen sind, die aus axial verlaufenden Stegen bestehen können. PATENT CLAIM Device for the production of synthetic resin molding compounds, consisting of an annular space with a rotating inner part and an outer wall surrounding it, through which the mixture is forced through while being heated by means of a pressure screw, characterized in that at the outlet end of the nozzle either at the not with Screw threads provided cylindrical end of the pressure screw or at this Screw end surrounding outer wall or on both parts N driver provided are, which can consist of axially extending webs.
DEN1508D 1939-01-10 1939-01-10 Apparatus for producing synthetic resin press mixes Expired DE920270C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN1508D DE920270C (en) 1939-01-10 1939-01-10 Apparatus for producing synthetic resin press mixes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN1508D DE920270C (en) 1939-01-10 1939-01-10 Apparatus for producing synthetic resin press mixes

Publications (1)

Publication Number Publication Date
DE920270C true DE920270C (en) 1954-11-18

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Family Applications (1)

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DEN1508D Expired DE920270C (en) 1939-01-10 1939-01-10 Apparatus for producing synthetic resin press mixes

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047417B (en) * 1954-07-12 1958-12-24 Hermann Teichmann Dr Ing Milling and kneading device on screw presses for thermoplastic masses
DE1178578B (en) * 1956-02-10 1964-09-24 Teldec Telefunken Decca Device for plasticizing and granulating thermoplastics
DE1246222B (en) * 1960-06-30 1967-08-03 Ankerwerk Gebr Goller Screw injection molding machine for processing plastics
DE1271377B (en) * 1955-01-24 1968-06-27 Western Electric Co Screw extruder
DE1454851B1 (en) * 1961-07-19 1972-03-16 Pirelli Continuously working mixer for plastic materials
DE1679889B1 (en) * 1966-11-12 1973-05-30 Sawod Tyashelowo Mash Im Ordsh PROCESSING PLANT FOR LIQUID, DEFINITIONING MIXTURES, IN PARTICULAR FOR THE PRODUCTION OF CASTING CORES AND MOLDS

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047417B (en) * 1954-07-12 1958-12-24 Hermann Teichmann Dr Ing Milling and kneading device on screw presses for thermoplastic masses
DE1271377B (en) * 1955-01-24 1968-06-27 Western Electric Co Screw extruder
DE1178578B (en) * 1956-02-10 1964-09-24 Teldec Telefunken Decca Device for plasticizing and granulating thermoplastics
DE1246222B (en) * 1960-06-30 1967-08-03 Ankerwerk Gebr Goller Screw injection molding machine for processing plastics
DE1454851B1 (en) * 1961-07-19 1972-03-16 Pirelli Continuously working mixer for plastic materials
DE1679889B1 (en) * 1966-11-12 1973-05-30 Sawod Tyashelowo Mash Im Ordsh PROCESSING PLANT FOR LIQUID, DEFINITIONING MIXTURES, IN PARTICULAR FOR THE PRODUCTION OF CASTING CORES AND MOLDS

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