DE1264744B - Spray head for the production of panels - Google Patents

Spray head for the production of panels

Info

Publication number
DE1264744B
DE1264744B DEC23536A DEC0023536A DE1264744B DE 1264744 B DE1264744 B DE 1264744B DE C23536 A DEC23536 A DE C23536A DE C0023536 A DEC0023536 A DE C0023536A DE 1264744 B DE1264744 B DE 1264744B
Authority
DE
Germany
Prior art keywords
cross
channel
sections
pressing
injection head
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
Application number
DEC23536A
Other languages
German (de)
Inventor
Luigi Cogliati
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE1264744B publication Critical patent/DE1264744B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/695Flow dividers, e.g. breaker plates
    • B29C48/70Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • B29C48/705Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows in the die zone, e.g. to create flow homogeneity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/07Flat, e.g. panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/305Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

AUSLEGESCHRIFTEDITORIAL

Int. CI.:Int. CI .:

B29dB29d

Deutsche Kl.: 39 a3 - 7/04German class: 39 a3 - 7/04

Nummer: 1264 744Number: 1264 744

Aktenzeichen: C 23536 X/39 a3File number: C 23536 X / 39 a3

Anmeldetag: 1. März 1961Filing date: March 1, 1961

Auslegetag: 28. März 1968Opening day: March 28, 1968

Der den Gegenstand des Hauptpatents 1156 967 bildende Spritzkopf zum Herstellen von Platten oder Folien durch Auspressen von plastischem Material, insbesondere von steifem Polyvinylchlorid, mit einem Speisungskanal, der sich zwischen dem Einlaß und dem Auslaß mehrfach verzweigt und dessen Gesamtquerschnitt zwischen Ein- und Auslaß konstant ist oder geringfügig abnimmt, kennzeichnet sich dadurch, daß sich aufeinanderfolgende Abschnitte des Speisungskanals in verschiedenen, übereinanderliegenden Ebenen befinden und der Querschnitt der Speisungsabschnitte flach, elliptisch oder kreuzförmig ist.The subject of the main patent 1156 967 forming die head for the production of sheets or foils by pressing out plastic material, in particular of rigid polyvinyl chloride, with a feed channel extending between the inlet and branched several times at the outlet and its total cross-section between inlet and outlet is constant or slightly decreases, is characterized in that successive sections of the Feed channel located in different, superimposed levels and the cross-section of the Feed sections is flat, elliptical or cross-shaped.

Durch die Anordnung der verschiedenen Speisungskanalabschnitte in übereinanderliegende Ebenen ergibt sich ein kompakter Spritzkopf mit im Verhältnis zu seinem Volumen kleiner Oberfläche. Ein solcher Spritzkopf kann gut so beheizt werden, daß er an allen Punkten im wesentlichen gleiche Temperatur besitzt. Für eine gleichmäßige Erwärmung des Materials wird gemäß dem Hauptpatent der Wärmefließweg von der wärmeaufnehmenden Oberfläche bis zum innersten Punkt des Materials an allen Stellen möglichst klein gehalten, was durch Anwendung von flachen, elliptischen oder kreuzförmigen Querschnittsformen für die Speisungskanalquerschnitte erreicht ist.Due to the arrangement of the different feed channel sections in superimposed levels the result is a compact spray head with a small surface area in relation to its volume. Such a The spray head can be heated so that it has essentially the same temperature at all points owns. According to the main patent, the heat flow path is used for uniform heating of the material from the heat-absorbing surface to the innermost point of the material in all places kept as small as possible, which is achieved by using flat, elliptical or cruciform cross-sectional shapes for the feed channel cross-sections is.

Infolge der gemäß der erfinderischen Maßnahmen des Hauptpatents erzielten sehr gedrungenen Bauart eines Spritzkopfes wird es möglich, worauf schon die Patentschrift des Hauptpatents verweist, mehrere Spritzköpfe nebeneinanderzulegen, so daß sie alle in den gleichen Endkanal münden, aus dem das Werkstück ausgepreßt wird. Der Zweck der vorliegenden Erfindung ist es, einen solchen Spritzkopf so weiterzubilden, daß sich nicht nur Profilwerkstücke besonders großer Breitenausdehnung, sondern auch von Querschnitten unterschiedlicher Dicke herstellen lassen. Dieser Zweck wird erfindungsgemäß erreicht durch mehrere nebeneinanderliegende Hauptspeisungskanäle, von denen jeder von wenigstens einer Preßvorrichtung speisbar ist, wobei die Querschnittsform des allen Preßvorrichtungen gemeinsamen Endkanals ungleichförmig ist und die Durchsatzleistung der einzelnen Preßvorrichtungen dem örtlich unterschiedlichen Querschnitt des Endkanals entspricht.As a result of the very compact design achieved according to the inventive measures of the main patent of a spray head it becomes possible, as the patent specification of the main patent already refers to, several Place spray heads next to each other so that they all open into the same end channel from which the workpiece is squeezed. The purpose of the present invention is to develop such a spray head so that that not only profile workpieces particularly large width extension, but also of Have cross-sections of different thicknesses made. This purpose is achieved according to the invention through several adjacent main feed ducts, each of which by at least one Pressing device can be fed, the cross-sectional shape of the end channel common to all pressing devices is uneven and the throughput of the individual pressing devices the locally different Cross-section of the end channel corresponds.

Die Erfindung wird nachfolgend an Hand der ein Ausführungsbeispiel schematisch und im Längsschnitt darstellenden Zeichnung näher beschrieben.The invention is illustrated schematically and in longitudinal section with reference to an exemplary embodiment descriptive drawing described in more detail.

Der Spritzkopf umfaßt eine Mehrzahl von zur Zuführung dienenden Preßvorrichtungen T1-T2-T3 usw., deren jede ihren eigenen Hauptspeisungskanal Spritzkopf zum Herstellen von PlattenThe spray head comprises a plurality of feed press devices T1-T2-T3 etc., each of which has its own main feed channel spray head for producing plates

Zusatz zum Patent: 1156 967Addendum to the patent: 1156 967

Anmelder:
ίο Luigi Cogliati, Mailand (Italien)
Applicant:
ίο Luigi Cogliati, Milan (Italy)

Vertreter:Representative:

Dipl.-Ing. F. Thieleke und Dr.-Ing. R. Döring,
Patentanwälte,
3300 Braunschweig, Jasperallee 1 a
Dipl.-Ing. F. Thieleke and Dr.-Ing. R. Döring,
Patent attorneys,
3300 Braunschweig, Jasperallee 1 a

Als Erfinder benannt:Named as inventor:

Luigi Cogliati, Mailand (Italien)Luigi Cogliati, Milan (Italy)

Beanspruchte Priorität:Claimed priority:

Italien vom 29. November 1960 (8511)Italy of November 29, 1960 (8511)

3-3'-3" usw. speist, von welchen jeder sich in aufeinanderfolgende Kanalabschnitte 4-5, 6-7, 4'-5', 6'-7', 4"-5", 6"-7" usw. verzweigt. Diese Kanalabschnitte münden sämtlich in den gemeinsamen Endkanal 8, aus dem die endgültige Platte ausgepreßt wird.3-3'-3 ", etc., each of which feeds into successive Channel sections 4-5, 6-7, 4'-5 ', 6'-7', 4 "-5", 6 "-7", etc. branched. These canal sections all open into the common end channel 8 from which the final plate is pressed will.

Die Querschnitte der Kanäle in den Ebenen C-D, C-D', C-D" bzw. E-F, E'-F', E"-F" oder G-H, G'-H' und G"-H" der Zeichnung können den jeweiligen Erfordernissen entsprechend unterschiedlich sein.The cross-sections of the channels in the planes CD, C-D ', CD " or EF, E'-F', E" -F " or GH, G'-H ' and G" -H "of the drawing can be the respective Be different according to requirements.

Wenn die Platte, z. B. am Endkanal, eine verschiedene Dicke aufweist, ζ. B. in der Mitte dicker sein soll, um dort eine größere Festigkeit aufzuweisen, muß bei drei nebeneinander angeordneten Preßvorrichtungen gemäß dem gezeichneten Ausführungsbeispiel die mittlere, T 2, eine in bezug auf die seitlichen Preßvorrichtungen ΓΙ und Γ3 größere Durchsatzleistung aufweisen.When the plate, e.g. B. at the end channel, has a different thickness, ζ. B. should be thicker in the middle, in order to have a greater strength there, must with three juxtaposed pressing devices according to the illustrated embodiment, the middle, T 2, have a relative to the side pressing devices ΓΙ and Γ3 greater throughput.

Es ist ferner vorgesehen, daß jeder Kanal 3-3'-3" gleichzeitig von zwei oder mehreren Preßvorrichtungen gespeist werden kann.
Der Spritzkopf gemäß vorliegender Erfindung eignet sich also dazu, Platten beliebiger Länge, Breite und Profilgebung herzustellen, da es möglich ist, eine beliebige Anzahl von Preßvorrichtungen zu kuppeln,
It is also provided that each channel 3-3'-3 "can be fed simultaneously by two or more pressing devices.
The spray head according to the present invention is therefore suitable for producing panels of any length, width and profile, since it is possible to couple any number of pressing devices,

809 520/660809 520/660

welche alle auf den gleichen Endkanal 8 einwirken, und die voneinander verschiedene Kennzeichen aufweisen (Durchsatzleistung, Geschwindigkeit, Druck). Ferner kann eine Preßvorrichtung sich in eine einzige Kanalgruppe und eine zweite Preßvorrichtung sich in mehrere Kanalgruppen verzweigen, solange man eine optimale Gleichfönnigkeit des plastischen Materials am Endkanal beachtet.which all act on the same end channel 8 and which have mutually different characteristics (Throughput, speed, pressure). Furthermore, a pressing device can be turned into a single one Channel group and a second pressing device branch into several channel groups as long as one observes an optimal homogeneity of the plastic material at the end channel.

Claims (4)

Patentansprüche:Patent claims: 1. Spritzkopf zum Herstellen von Platten durch Auspressen von plastischem Material mit einem Speisungskanal, der sich zwischen Einlaß und Auslaß mehrfach verzweigt und dessen aufeinanderfolgende Abschnitte sich in verschiedenen übereinanderliegenden Ebenen befinden, wobei der Querschnitt der Speisungskanalabschnitte flach, elliptisch oder kreuzförmig ist, nach Patent 1156 967, gekennzeichnetdurchmehrere nebeneinanderliegende Hauptspeisungskanäle (3-, 3'-, 3" usw), von denen jeder von wenigstens einer Preßvorrichtung (Tl, T 2, Γ3) speisbar ist, wobei die Querschnittsform des allen Preßvorrichtungen gemeinsamen Endkanals (8) ungleichförmig ist und die Durchsatzleistung der einzelnen Preßvorrichtungen (Γ1-, T 2-, Γ 3) dem örtlich unterschiedlichen Querschnitt des Endkanals (8) entspricht.1. Injection head for the production of plates by pressing out plastic material with a feed channel which branches out several times between inlet and outlet and whose successive sections are located in different planes one above the other, the cross section of the feed channel sections being flat, elliptical or cross-shaped, according to patent 1156 967, characterized by several adjacent main feed channels (3-, 3'-, 3 ", etc.), each of which can be fed by at least one pressing device (Tl, T 2, Γ3), the cross-sectional shape of the end channel (8) common to all pressing devices being non-uniform and the throughput of the individual pressing devices (Γ1-, T 2-, Γ 3) corresponds to the locally different cross-section of the end channel (8). 2. Spritzkopf nach Anspruch 1, dadurch gekennzeichnet, daß die Summe der Querschnitte der Verzweigungen eines Kanals von der Summe der Querschnitte der Verzweigungen eines anderen Kanals verschieden ist.2. Injection head according to claim 1, characterized in that the sum of the cross-sections of the branches of one channel from the sum of the cross-sections of the branches of another Channel is different. 3. Spritzkopf nach Anspruch 1, dadurch gekennzeichnet, daß jeder Hauptspeisungskanal (3 oder 3' oder 3") von zwei oder mehreren Preßvorrichtungen speisbar ist.3. Injection head according to claim 1, characterized in that each main feed channel (3 or 3 'or 3 ") can be fed by two or more pressing devices. 4. Spritzkopf nach Anspruch 1, dadurch gekennzeichnet, daß durch eine Preßvorrichtung (Tl oder Γ2 oder Γ3) gleichzeitig mehrere Hauptspeisungskanäle (3+3' oder 3'+3" usw.) speisbar sind.4. Injection head according to claim 1, characterized in that several main feed channels (3 + 3 'or 3' + 3 ", etc.) can be fed simultaneously by a pressing device (Tl or Γ2 or Γ3). Hierzu 1 Blatt Zeichnungen1 sheet of drawings S09 520/660 3.68 © Bundesdruckerei BerlinS09 520/660 3.68 © Bundesdruckerei Berlin
DEC23536A 1960-11-29 1961-03-01 Spray head for the production of panels Pending DE1264744B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2057660 1960-11-29

Publications (1)

Publication Number Publication Date
DE1264744B true DE1264744B (en) 1968-03-28

Family

ID=43638615

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC23536A Pending DE1264744B (en) 1960-11-29 1961-03-01 Spray head for the production of panels

Country Status (2)

Country Link
DE (1) DE1264744B (en)
FR (1) FR1285580A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849051A (en) * 1972-02-16 1974-11-19 E Solbeck Extrusion apparatus
WO1986002316A1 (en) * 1984-10-12 1986-04-24 Princeton Packaging, Inc. Two-color sheet, article, method and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849051A (en) * 1972-02-16 1974-11-19 E Solbeck Extrusion apparatus
WO1986002316A1 (en) * 1984-10-12 1986-04-24 Princeton Packaging, Inc. Two-color sheet, article, method and apparatus
US4731004A (en) * 1984-10-12 1988-03-15 Princeton Packaging, Inc. Side-by-side co-extrusion of film using multiple materials

Also Published As

Publication number Publication date
FR1285580A (en) 1962-02-23

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