DE2147404A1 - Spraying machine - Google Patents

Spraying machine

Info

Publication number
DE2147404A1
DE2147404A1 DE19712147404 DE2147404A DE2147404A1 DE 2147404 A1 DE2147404 A1 DE 2147404A1 DE 19712147404 DE19712147404 DE 19712147404 DE 2147404 A DE2147404 A DE 2147404A DE 2147404 A1 DE2147404 A1 DE 2147404A1
Authority
DE
Germany
Prior art keywords
machine according
chamber
port set
injection machine
injection
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
DE19712147404
Other languages
German (de)
Inventor
Roberto Turin Colombo (Italien) M
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.)
LAVORAZIONE MAT PLAST
Original Assignee
LAVORAZIONE MAT PLAST
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 LAVORAZIONE MAT PLAST filed Critical LAVORAZIONE MAT PLAST
Publication of DE2147404A1 publication Critical patent/DE2147404A1/en
Pending 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
    • B29C48/395—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
    • B29C48/40—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 using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/435—Sub-screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/484—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with two shafts provided with screws, e.g. one screw being shorter than the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B29B7/489—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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
    • 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

Description

S οp.A. LAVORAZIOHB HATEEIE PLASTICHE L.M.P, Turin, ItalienS οp.A. LAVORAZIOHB HATEEIE PLASTICHE L.M.P, Turin, Italy

-S pr it zmas chine-S pr it zmachine

Priorität: 24. September 1970 /Italien Amnelde-liro: 70204-A/70Priority: September 24, 1970 / Italy Amnelde-liro: 70204-A / 70

Die Erfindung bezieht sich auf eine Spritzmaschine zum Spritzen hohler Kunststoffgegenstände. Es handelt sich dabei um eine Spritzmaschine mit zwei Führungsschnecken, deren Gewinde miteinander kämmen be sw. ineinander eingreifen und die beim Betrieb der Maschine in gleicher Richtung gedreht v/erden, um das Material einer Spritzform zuzuführen.The invention relates to an injection molding machine for injection molding hollow plastic objects. It deals This involves an injection molding machine with two guide worms, the threads of which mesh with one another or with one another intervene and v / earth the rotated in the same direction when the machine is in operation, around the material of a To supply injection mold.

Eine Schwierigkeit bei derartigen Haschinen, besonders wenn sie zum Herstellen von PVC-Flaschen verwendet v/erden, besteht darin, daß die Verteilung des MaterialsA difficulty with such machines, especially when used to make PVC bottles v / ground, consists in distributing the material

2 098 19/05632 098 19/0563

2H740A2H740A

in dem die Maschine verlassenden weichen, schlauchförmigen 'Erzeugnis ungleichmäßig wird, v/emi weniger Weichmacher in dem gespritzten Material enthalten ist. In der Praxis werden zwei einander diametral gegenüuerliegende, längliche Bänder von verhältnismäßig großer Stärke im Vergleich zur Stärke der restlichen Hasche gebildet. Diese nehmen an Größe zu, wenn der V/eichmachergehalt weniger wird, so daß der Rest der Piasehe ziemlich viel dünner ist als er sein sollte. Diese Unzulänglichkeit tritt besonders "bei Flaschen hervor, die Flüssigkeiten zum menschlichen Verbrauch enthalten sollen, da in diesem Fall eine PVC-LIasse verwendet werden muß, die wegen der bekannten unguten Auswirkungen praktisch keinen Weichmacher enthält.in which the machine leaves the soft, tubular 'Product becomes uneven, v / emi less Plasticizer is contained in the sprayed material. In practice, two diametrically opposed, elongated ribbons of relatively great strength compared to the strength of the rest of the hash educated. These increase in size as the plasticizer level decreases, so that the rest of the Piase Marriage is quite a bit thinner than it should be. This inadequacy is particularly evident in the case of bottles the liquids are intended to contain for human consumption, since in this case a PVC liner is used must be, which contains practically no plasticizer because of the known adverse effects.

Aufgabe der Erfindiing ist es daher, diese Nachteile bei einer Spritzmaschine zum Herstellen hohler Kunststoffgegenstände tunlichst zu vermeiden.The task of the invention is therefore to address these disadvantages to be avoided as much as possible with an injection molding machine for the production of hollow plastic objects.

Gemäß der Erfindung wird zur Lösung der gestellten Aufgabe eine Spritzmaschine zum Spritzen hohler Gegenstände aus Kunststoffen geschaffen, die eine Kammer hat, welche zwei im wesentlichen parallele Führungsschnecken umgibt, deren Gewinde miteinander kämmen und die beim Betrieb der Maschine in der gleichen Richtung gedreht v/erden. Diese Spritzmaschine zeichnet sich dadurch aus, daß die die Führungsschnecken umgebende Kammer an eine zusätzliche Kammer angeschlossen ist, an die eine Spritzform anschließbar ist, und die einen im wesentlichen kreisförmigen Querschnitt hat und einen Fortsatz einer der beiden Führungsschnecken mit schraubenförmig angeordnetem Gewindesteg umgibt.According to the invention, an injection molding machine for injecting hollow objects is used to achieve the object made of plastics, which has a chamber which has two substantially parallel guide screws surrounds, the threads of which mesh with one another and which are rotated in the same direction when the machine is in operation v / earth. This injection molding machine is characterized in that the chamber surrounding the guide screws is connected to a additional chamber is connected, to which an injection mold can be connected, and the one substantially circular Has cross-section and an extension of one of the two guide worms with a helically arranged Thread web surrounds.

Vorzugsweise sind die zusätzliche Kammer und der Fortsatz einer der Führungsschnecken mit dem schrauben-Preferably, the additional chamber and the extension of one of the guide worms with the screw

209819/056 3209819/056 3

_ 3 „ 2U7404_ 3 "2U7404

formten G-ewindesteg von der Maschine abnehmbar, diese Y/eise kann eine lie Z1Ic οηικιΙχ ehe Sprit anas diine zwei Fiüirungs schnecken in normaler Weise verwendet werden, wenn das zu verspritzende thermoplastische Material genügend Weichmacher enthält} und nie kann .rasch und einfach angepaßt werden, wenn Hassen verarbeitet werden (insbesondere Polyvinylchlorid PYC), die im wesentlichen Iceinen Weichmacher enthalten.preformed G-ewindesteg of the machine removable, this Y / else can be a lie Z 1 Ic οηικιΙχ before fuel Anas diynes two Fiüirungs screw in a normal manner are used, when the thermoplastic to be sprayed material sufficient plasticizer} and can never .rasch and easily should be adjusted when processing hats (especially polyvinyl chloride PYC), which essentially contain a plasticizer.

Vermutlich beruht der oben erwähnte JTachteil auf einem geringen l'ernperaturunterschied im Bereich von 5 bis 6 0 in der von den Eührungsschnecken weite3?beförderten Kunststoffmasse zwischen derjenigen ütelle, an der die Schnecken ineinander-greifen, und den einander diametral gegenüberliegenden Stellen der Schnecken, Folglich ist die zusätzliche Kammer vorgesehen, um die Hasse zu vermischen und deren Homogenität vor dem Spritzen in Schlauchform zu verbessern.Presumably, the disadvantage mentioned above is due to a small learning temperature difference in the range from 5 to 6 0 in the 3? Plastic compound between the point where the screws interlock and the diametrically opposite one opposite bodies of the snails, consequently is The additional chamber is provided to mix the hasse and ensure its homogeneity prior to spraying in a hose form to improve.

Die Erfindung und vorteilhafte Einzelheiten der Erfindung werden anhand einer schematischen Zeichnung eines Ausführungsbeispiels näher erläutert.The invention and advantageous details of the invention are illustrated by means of a schematic drawing an exemplary embodiment explained in more detail.

Die Zeichnung stellt einen Längsschnitt durch das Ausgangsende einer Spritzmaschine gemäß der Erfindung dar.The drawing represents a longitudinal section through the output end of an injection molding machine according to the invention represent.

In der Zeichnung ist der Endbereich einer herkömmlichen Zweischneckenspritzmaschine 10 dargestellt. Die beiden ineinandergreifenden Schnecken 12 und 14 befördern die zu spritzende Kunststoffmasse dadurch weiter, daß sie sich in der gleichen Bachtung drehen. Das Ende der Schnecken 12, 14 und der Endbereich der Kainner 10 sind normalerweise gekühlt, und eine Sparitz-In the drawing, the end area is a conventional one Two-screw injection molding machine 10 is shown. The two intermeshing screws 12 and 14 convey the plastic mass to be injected through it further that they turn with the same observation. The end of the augers 12, 14 and the end portion of the Kainner 10 are normally refrigerated, and a Sparitz

BAD 209819/0563- _--BAD 209819 / 0563- _--

form oder Preßform ist normalerweise am Bereich 10 der Schneckenkammer befestigt.shape or mold is usually at area 10 of the Screw chamber attached.

Wie jedoch aus der Zeichnung hervorgeht, ist der 33ereich 10 an ein abnehmbares Zubehörteil augeschlossen, welches mit einer zusätzlichen Kammer. 16 von kreisförmjgom innerem Querschnitt ausgebildet ist, die sich koaxial mit einer der Führung ε Schnecken (14) erstreckt. An der Pührungsschnecke 14 ist ein Fortsatz 18 mit schraubenförmig angeordnetem Gewindesteg vorgesehen, der in die zusätzliche Kammer 16 ragt. Die Kammer 16 ist am Endbereich 10 mittels zweier Krc.gen 20 und 22 und damit zusammenwirkender Schraubbolsen 2A bofRctigt. wie aus der Zeichnung hervoxvgelit, und endet mit einer Abgabeöffnung 26, an die ein hier nicht gezeigter Spritzkopf be zw. eine Spritzform anschraubbar ist. Der· Fart3atz· 18 mit dem schraubenförmig angeordneten Ge>7indesteg ist an die Führungsschnecke 14 anstelle des normalen konischen Endbereichs angeschraubt, wie er beispielsweise an der Schnecke 12 gezeigt ist. Am Eingang der zusätzlichen Kammer 16 ist eine Züscuaraenströmkammer 28 ausgebildet, in der die von den beiden Schnecken 12 und 14 abgegebene Hasse zusammenströmt.However, as can be seen from the drawing, the area 10 is attached to a removable accessory, which is provided with an additional chamber. 16 is designed with a circular inner cross-section, which extends coaxially with one of the guides ε screws (14). An extension 18 with a helically arranged thread web is provided on the guiding screw 14 and protrudes into the additional chamber 16. The chamber 16 is closed at the end area 10 by means of two cranks 20 and 22 and screw bolts 2A that cooperate with them. as shown in the drawing, and ends with a discharge opening 26 to which a spray head (not shown here) or an injection mold can be screwed. The Fart3atz 18 with the helically arranged thread web is screwed onto the guide worm 14 instead of the normal conical end region, as is shown, for example, on the worm 12. At the entrance of the additional chamber 16, a Züscuaraenströmkammer 28 is formed, in which the Hasse discharged by the two screws 12 and 14 flows together.

Es ist günstig, wenn diese Zusammenströmkammer ziemlich groß ist, und zu diesem Zweck ist der Achsendurchmesscr des Fortsatzes 18 der Führungsschnecke 14, an der Stelle, an der sich der Fortsatz durch die Zusamrienströmkcuiimer 28 erstreckt, auf ein I.Iinimum eingeschränkt. Der Durchmesser des Fortsatzes 18 nimv.it in Bewegungsrichtung der zu spritzenden Hasse allmählich zu. Sowohl in "der zusätzlichen Kanrcer 16 als auch in dem Fortsatz 18 mit dem schraubenförmig angeordneten Gev/indesteg an der Führungs schnecke 14 kann vorteilhafterweise ein inneres Kühlsystem angeordnet sein, welches hier nicht gezeigt ist«It is favorable if this confluence chamber is quite is large, and for this purpose the axle diameter of the extension 18 of the guide worm 14 is at the point at that the appendix extends through the amalgamation flow collars 28, restricted to an I.Iinimum. The diameter of the Extension 18 nimv.it gradually closes in the direction of movement of the Hasse to be injected. Both in "the additional Kanrcer 16 as well as in the extension 18 with the helically arranged Gev / indesteg on the guide screw 14 can advantageously be arranged an internal cooling system, which is not shown here "

Da die zusätzliche Kammer der Strömung der MasseAs the additional chamber of the flow of the mass

981970563981970563

BAD ORIGINAL.BATH ORIGINAL.

^5- 2H7A04^ 5- 2H7A04

einen größeren Viiderstand entgegensetzt, erzeugt sie einen Eückdruek, der in einer herkömmlichen Zwei— schneekenmaschine nicht vorhanden ist, Oaher ist es vorteilhaft, in dem schraubenförmig verlaufenden Steg auf dem Fortsatz 18 mehrere Spalte bezv/. Unterbrechungen 30 auszubilden, die eine Verminderung dos Bückdrucks auf einen gewünschten Grad bewirken und außerdem zum Vermischen der Masse beitragen Lind damit die Homogenität der Hasse vor dem Spritzen noch weiter verbessern.opposed a greater resistance, it creates a pressure which is not present in a conventional two-snow machine, or rather it is advantageous in the helical web on the extension 18 several columns related to /. To train interruptions 30 that a reduction of the back pressure effect to a desired degree and also to the Mixing the mass contribute and thereby improve the homogeneity of the Hasse before spraying even further.

Ansprüche -Expectations -

209819/0563209819/0563

Claims (2)

A η s p r ü c h A η s p r ü c h ee ' 1A Spritzmaschine zum Spritzen hohler Gegenstände aus Kunststoffen, die eine Kanrae.r hat, welche zwei im wesentlichen parallele i'ülirungs schnecken urngiut, deren Gewinde ineinandergreifen und öie "bein Betrieb der Maschine in der "gleichen Richtung gedreht werden, dadurch g e kennzeichnet , daß an die die PührungcGchnecken (12, 14) umgebende Kammer (10) eine weitere Kammer- (16.) angeschlossen i.^t, an die eine-Spritzform anschließbar ist und die einen im wesentlichen kreisförmigen Querschnitt hat und einen Portsatz (13) mit schraubenförmig angeordnetem Gewindesteg an einer der beiden Piüirungsschnecken (14) umgibt. '1 A hollow injection molding machine for molding articles made of plastics, which has a Kanrae.r which two substantially parallel urngiut i'ülirungs snails, engage the thread and ÖIE "including operation of the machine in the" are rotated the same direction, characterized that a further chamber (16) is connected to the chamber (10) surrounding the guiding screws (12, 14), to which an injection mold can be connected and which has an essentially circular cross-section and a port set (13 ) surrounds with a helically arranged thread web on one of the two control screws (14). 2. Spritzmaschine nach Anspruch 1 ,. dadurch gekennzeichnet , daß die zusätzliche Kammer (16) eine Zusammenströmkammer (28) für die zu spritzende Masse umfaßt.2. Injection machine according to claim 1,. characterized in that the additional chamber (16) comprises a confluence chamber (28) for the mass to be sprayed. "oder 2,"or 2, 3. Spritzmaschine nach Anspruch 1/ dadurch gekennzeichnet , daß der Achsend-urchmesser des Portsatzes (18) mit dem Gewindesteg an d.er einen der Führungsschnecken (14) an der Stelle, an der sich der Portsatz durch die Zusaminenströmkammer (28) erstreckt, einen Minimalwert hat.3. Injection machine according to claim 1 / characterized in that the axle end diameter of the port set (18) with the thread web on the one of the Guide screws (14) at the point where the Port set extends through the confluence chamber (28), has a minimum value. 4ο Spritzmaschine nach einem der Ansprüche 1 bis4ο injection machine according to one of claims 1 to 3, dadurch gekennzeichn e t , daß der Achsendurchmesser des Portsatzes (18·) mit dem schraubenförmig angeordneten Gewindesteg an der einen der Pührungsschnecken (H) in Bewegungsrichtung der Masse zunimmt.3, characterized in that the axis diameter of the port set (18 ·) with the helical arranged thread web on one of the Pührungsschnecken (H) increases in the direction of movement of the mass. 209819/0563 BAD 209819/0563 BAD _- 2U740A_- 2U740A 5o Spritzmaschine nach 'einem der Ansprüche 1 bis5o injection machine according to 'one of claims 1 to 4, dadurch gekennzeichnet , daß der Fortsatz (1ö) mit dem schraubenförmig angeordneten Gev.'iiidesteg an der einen der Führung ε sehne cken (14) und/oder die Ί/and der zusätzlichen Kammer (16) mit einer Kühleinrichtung versehen ist/sind.4, characterized in that the Extension (1ö) with the helically arranged tie bar on one of the guide ε tendons corners (14) and / or the Ί / and the additional chamber (16) with a Cooling device is / are provided. G. Spritzmaschine nach einen der Ansprüche 1G. Injection machine according to one of claims 1 5, dadurch gekennzeichnet , daß der ijchraubeiifo*rrii{;c G-ewindcsteg an Portsatz (18) einer der FührungG is ohnecken dickontinuierlich (30) ausgebildet ict.5, characterized in that the ijchraubeiifo * rrii {; c G-ewindcsteg on port set (18) one of the GuideG is formed continuously (30) without corners. 7. S pritzinaschine nach einem der vorhergehenden7. S pritzin machine according to one of the preceding AnO])I-UChG, dadurch gekennzeichnet , daß die zusätzliche Kammer (16) und der Fortsatz (18) mit dem schraubenförmig angeordneten Gewindesteg an der einen der lren (14) von der I las chine abnehmbar sind.AnO]) I-UChG, characterized in that the additional chamber (16) and the extension (18) with the helically arranged thread web on which one of the irons (14) can be removed from the I las chine. 2 G 98 1 9/.n 56 32 G 98 1 9 / .n 56 3 LeerseiteBlank page
DE19712147404 1970-09-24 1971-09-22 Spraying machine Pending DE2147404A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7020470 1970-09-24

Publications (1)

Publication Number Publication Date
DE2147404A1 true DE2147404A1 (en) 1972-05-04

Family

ID=11313627

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712147404 Pending DE2147404A1 (en) 1970-09-24 1971-09-22 Spraying machine

Country Status (4)

Country Link
JP (1) JPS5115547B1 (en)
DE (1) DE2147404A1 (en)
FR (1) FR2107922B3 (en)
GB (1) GB1314465A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT519286A1 (en) * 2016-10-19 2018-05-15 Gruber Dietmar TWIN SCREW EXTRUDER

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101753A1 (en) * 1982-08-26 1984-03-07 HERMANN BERSTORFF Maschinenbau GmbH Connection of cylinder and flange for screw extruder
DE202007013114U1 (en) * 2007-09-19 2007-11-15 Krauss Maffei Gmbh extruder means
DE102009058507B4 (en) 2009-12-16 2014-10-30 Kraussmaffei Technologies Gmbh extruder means
CN104690939B (en) * 2014-03-19 2017-02-22 保定长河塑料机械制造有限公司 Eccentric flow combining core

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE533182A (en) * 1953-11-13 1900-01-01

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT519286A1 (en) * 2016-10-19 2018-05-15 Gruber Dietmar TWIN SCREW EXTRUDER
AT519286B1 (en) * 2016-10-19 2018-12-15 Gruber Dietmar TWIN SCREW EXTRUDER
EP3493969B1 (en) * 2016-10-19 2020-08-19 Dietmar Gruber Mixing device in the screw antechamber of a twin-screw extruder, and its use

Also Published As

Publication number Publication date
FR2107922A3 (en) 1972-05-12
GB1314465A (en) 1973-04-26
JPS5115547B1 (en) 1976-05-18
FR2107922B3 (en) 1974-05-10

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