SE435824B - SPRAY MACHINE WITH PIN CYLINDER FOR WORKING THERMOPLASTES AND ELASTOMERS - Google Patents

SPRAY MACHINE WITH PIN CYLINDER FOR WORKING THERMOPLASTES AND ELASTOMERS

Info

Publication number
SE435824B
SE435824B SE8100750A SE8100750A SE435824B SE 435824 B SE435824 B SE 435824B SE 8100750 A SE8100750 A SE 8100750A SE 8100750 A SE8100750 A SE 8100750A SE 435824 B SE435824 B SE 435824B
Authority
SE
Sweden
Prior art keywords
screw
threads
cylinder
spraying machine
parts
Prior art date
Application number
SE8100750A
Other languages
Swedish (sv)
Other versions
SE8100750L (en
Inventor
A Dietmar
Original Assignee
Berstorff Gmbh Masch Hermann
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 Berstorff Gmbh Masch Hermann filed Critical Berstorff Gmbh Masch Hermann
Publication of SE8100750L publication Critical patent/SE8100750L/en
Publication of SE435824B publication Critical patent/SE435824B/en

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
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/687—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having projections with a short length in the barrel direction, e.g. pins
    • 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
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • B29C48/565—Screws having projections other than the thread, e.g. pins
    • 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
    • B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
    • B29C48/605—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw the thread being discontinuous
    • 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
    • B29C48/03—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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

8100750-2 Genom detta arrangemang uppnåsen mycket stor aktiv yta för in- ledning av en stor mängd skjuvenergi till materialet. Vidare dras det material een befinner sig via detta ställe nea and hastighet genom den trånga spaltm utan att det kan vika åt sidan. -nnligt teknikens ståndpunkt tillåta niaterialetgenm skall bearb- etas, när det kommer i kontakt med de stationära stiften, alltid att ifika åt_ sidan utan någon kraftig påverkan. Med hjälp av ett stort an- tal rader av stift uppnås visserligen en god-omblandning men skjuvnin- gen av materialet somïhar en avgörande .betydelse för m god material- homogenitet ffšrsummas dock kraftigt.- Enligt en ytterligare utföringsform av tlppfiririingeiz anordnas radiellt placerade stiftplan i kransform med i materialets strömnings- riktning där framför och därefter 'anordnade korta med flera gängor försedda skruvdelar. . f f Genom förverkligande av ippfiririingeris idé, nämligen anordnandet av de radiella avbrottsytorna hos Jivens odi inledningar mittemot varandra på en flergängigt utformad- homogeneseringsdel, mångdubblas ef- tfekten för föreliggande uppfinning. _ ' Om ett flertal liknande utformade homgezliseringsermeter :inkopp- las efter varandra så kan man med hjälp av en mycket kort sprutmaskin uænå en utomordentlig blandnings- och homogeniseringseffekt. Anskaff- ningspriset för en sprut-.maskinenhet reduceras sålunda avsevärt. 8100750-2 Through this arrangement a very large active surface is achieved for initiating a large amount of shear energy to the material. Furthermore, the material is located via this place at a speed through the narrow gap without it being able to fold to the side. According to the state of the art, allowing the material to be machined, when it comes into contact with the stationary pins, always to the side without any strong influence. With the help of a large number of rows of pins, a good mixing is achieved, but the shear of the material, which is of decisive importance for good material homogeneity, is greatly neglected. According to a further embodiment of tlppfiririingeiz, radially placed pin planes are arranged in crown shape with in the direction of flow of the material where in front and then 'arranged short screwed parts provided with several threads. . By realizing the idea of ippfiririingeri, namely the arrangement of the radial interrupt surfaces of Jivens odi introductions opposite each other on a multi-shaped homogenization part, the effect of the present invention is multiplied. If a number of similarly designed homgezlization thermometers are connected one after the other, an excellent mixing and homogenization effect can be achieved with the aid of a very short spraying machine. The acquisition price of a spraying machine unit is thus considerably reduced.

I I För att man skall kurma uppnå ett mindre strömningslrnotståxxd i en homogeniseringsdel, såsom ovan beskrivna, det lämpligt om, sett i materialets strömningsriktning, gängornas inledningar hos de flergängiga skruvdelarm och ändarna på de efter de gängfria avsnitten anordnade flergängiga skruvdelania är utformade tillspetsade.In order to achieve a smaller flow resistance in a homogenizing part, as described above, it is convenient, seen in the direction of flow of the material, the threads' introductions of the multi-threaded screw parts and the ends of the multi-threaded screw parts arranged after the threadless sections.

En utföririgsfonn av uppfinningen beskrivas närmare 'nedan i an- slutning till bifogade :ritningar på vilka fig. l visar enenskruvssprutmaskin *enligt uppfinningen i langaefiitt een i eenenntiek framställning, ' I ' fig. 2 visar ett längdsnitt genom en sprutmaskinsdel med två hctrogmiseringsezflleter, _ _ - fig. 3 visar tillepeteaae iiiledningar och ändar nns gängoma, fig. 4 förtydligar i schematisk form grundidál fórföreliggande uppfinning, och' - " 3100750-2 fig. 5 visar en utföringsform enligt teknikens ståndpunkt i schematislc forna _ I en sprutmaskincylinder 1 är en skruv 2 anordnad med därpå spiralformigt förlëpande skruvgängor 3. In genqn sprutmaskincylindern l skjuter stift 4 som fastlåses med hjälp av ett skruvfórbarxd 5. .Stift 4 anordnas i ett mångfald i sprutrnasïtincyliridem 5 på ett sådant sätt att de med sina axlar pekar mot skruvens 2 axel. Alltefter cylinder- och skruvdiameter kan fler resp. färre stift skjuta in radiellt genom cy- lindern een in i epmtmaskineztanmtaren-s. stift-en 4 arnranae vinxeiratt mot skruvens 2 axel odx fungerar som ett stiftplan. Ett flertal stift- plan kan anordnas på ett bestämt avstånd bredvid varandra, varvid am- eller flergängiga skruvselctioner-kan vara anordnade mellan de enskilda stiftplanen. ' I fig. 2 visas en sprutmaskinsdel med två hornogerxiserirxgssekto- ner 7. Hodxnogeniserirxgssektiotxenxa 7 består av omedelbart före oda efter ett etiftpian anordnade fiergängiga ekmvaelar a een 9.- ' Genom den flergäragiga utformningen av taonngeraiserirxgssektiorier- na 7 stegras den lnöga skjuwerkan 'nos det nvaterial som 'skall bearbetas avsevärt mellan de mitteznot varandra liggande ra 'iella avbrottsytorna hos gängorna.An embodiment of the invention is described in more detail below in connection with the accompanying drawings, in which Fig. 1 shows a single-screw sprayer * according to the invention in a single-frame production, Fig. 2 shows a longitudinal section through a spraying machine part with two heaters. Fig. 3 shows the leads and ends of the threads, Fig. 4 schematically illustrates the basics of the present invention, and Fig. 5 shows an embodiment according to the prior art in schematic form. In a spraying machine cylinder 1 is a screw 2 is arranged with helically extending screw threads thereon. 3. A pin 4 slides into the injection machine cylinder 1 and is locked by means of a screw feed bar 5. Pin 4 is arranged in a plurality in the syringe cylinder 5 in such a way that they point with their axes 2 Depending on the cylinder and screw diameter, more or fewer pins can slide radially through the cylinder and into the machine machine assembly. -s. pin-en 4 arnranae vinxeiratt against the screw 2 axis odx acts as a pin plane. A plurality of pin planes can be arranged at a certain distance next to each other, whereby am- or multi-threaded screw selections can be arranged between the individual pin planes. Fig. 2 shows a spraying machine part with two hornogerxiserirxgsectors 7. The hodxnogeniserxgsektiotxenxa 7 consists of four-threaded oak wheels arranged immediately after an etiquette pi. material to be processed considerably between the mutually spaced apart intermittent surfaces of the threads.

Vid varje tillfälle när den roterande skruven 2 med de radiella motstående gängbrottsytorna 10 och ll passerar ett stationärt stift underkastas materialet lnellan-avbrottsytorna och stiftet en väsentlig skjmmixng som multipliceras motsvarande homogeniseringssektionernas flergängighet. ' i Fig. 5 visar i stiliserad form och utvecklat en anordning en- ligt teknikens ståndptvnkt vid vilken en genomgående, spiralforrnig gän- ga, med samma stigning som den i fig. 4 visade gängan, har avbrutits för att åstadkomma fritt utrymne för det stationära stiftet 14. När den radien-a gangavbretteytan 13 passerar Stiftet 14 kan materialet anna- rat vika åt den sidan utan att utsättas för någcn skjuvning. När _ i därefter under den fortsatta skruvrotationerxs gång den radiella gångav- brottsytan 12 den följande gänginledriingeai passerar stiftet 14 til- låts nsaterialet åter att vika åt sidan i_ den andra riktningen utan att utsättas för något: skjuvpåverkan ' - ' Genom jämförelse mellan verkningssätten för defhägge schema- ÛÅ-'ÛÛ7SÛ “ 2 4. I tisk framställda figurerna 4 och 5__b1ir det lippexxbart att skjuvverkan är överlägsen vid anordnjngen enligt uyppfirzrfingen. _ Med avseende på tillverkningen av homogeniseringssektionerrm 7 bör det nämnas att dessa exempelvis kan tillverkas genom a: enkel på- sättning av de såsom separata delarna utformade flergängiga cklarna 8 och 9 på en dragstång med motsvarande låsning genom krysskilar. .Ut- formningen av flruvdelarna 8 och 9 såväl som däremellan anordnade gängfria sektionen såsom separata delar av stor fördel eftersom det kan xxppträda olika kraftiga fórslitnmgsferaomen på dessa. Sålunda ut- sätts exempelvis de första homogeniseringssektionerrza 7 för väsentligt kraftigare påkäzirüngar än de nästföljarmde, eftersom materialet inled- ningsvis är kallare och sålunda har en väsentligt mycket kraftigare slipande verkan. En ytterligare fördel med utformningen av skruven i separata utbytbara sektioner ligger i tillverkningen. Delarna kan därvid i relativt små volymer tillverkas såsom prisvärda precisione- gjwtdetaljer- i ~ , Motsvarande det material som skall bearbetas kan det vara nöd- vändigt att inleda mer eller mindre skjuvenergi i materialet och sålun- da anordna fler eller färre “ncxnogaxiseringssektioner 7.In each case when the rotating screw 2 with the radial opposite thread breaking surfaces 10 and 11 passes a stationary pin, the material is subjected to the inner breaking surfaces and the pin a substantial foam mixture which is multiplied corresponding to the multiplicity of the homogenization sections. Fig. 5 shows in stylized form and developed a device according to the state of the art in which a continuous, helical thread, with the same pitch as the thread shown in Fig. 4, has been interrupted to provide free space for the stationary the pin 14. When the radii aisle folding surface 13 passes the pin 14, the material can otherwise fold to that side without being subjected to any shear. When, during the continued screw rotation, the radial gang-break surface 12 passes the following threaded guide in the pin 14, the material is again allowed to fold to the side in the other direction without being subjected to anything: shear action '-' By comparing the modes of action of defhägge schema- ÛÅ-'ÛÛ7SÛ „2 4. In the figures 4 and 5__ presented in the ethical table, it should be noted that the shear effect is superior in the device according to the invention. With regard to the manufacture of homogenizing section 7, it should be mentioned that these can be manufactured, for example, by a: simple mounting of the multi-threaded hooks 8 and 9 designed as separate parts on a drawbar with corresponding locking through cross wedges. The design of the rupture parts 8 and 9 as well as the threadless section arranged therebetween as separate parts is of great advantage as different strong wear spheres can occur on them. Thus, for example, the first homogenization sections 7 are subjected to significantly stronger abrasions than the next-following ones, since the material is initially colder and thus has a substantially much stronger abrasive effect. An additional advantage of the design of the screw in separate replaceable sections lies in the manufacture. The parts can then be manufactured in relatively small volumes as inexpensive precision-casting details. In corresponding to the material to be machined, it may be necessary to introduce more or less shear energy into the material and thus arrange more or fewer "ncxnogaxization sections 7.

I praktiken har det visats sig att exempelvis de flergängiga skruvsektionerna 8 och 9 skall ha följande gängantal vid bestämda sprutmaflirzstorlelcar.. _ _ I I 90 ggrs sprutmaskzin- 2- çingig 150 ggrs spmmasldrx- 3- gängig - 200 ggrs sprutnäskin- 4- gängig 250 ggrs sprutmasldrx- 5- gängig Det har visats sig vara lämpligtatt utforma' längden på skruv- sektionerna 8 och 9 i ett bestämt förhållande till stiftens 4 diameter. som särskilt effektivt har ett förhållande mellan skruvselctiozlslängden >8H och stiftens diameter 4 av 1:1 till 2:2 visat sig vara, dvs. när skruvselctiorxerrxa 8 uppvisar en-längd av 0,2 D skall stiften resp. läng- den på dax gängfria skruvsektionen mellan skruvselctimenza 8 och 9 upp- - visa en längd av O,l-0,2 D '(D=skruvens diameter). via bearbetning av Rana gummiblananingai: med hjeup av en gäng- resp. stiftgeometri enligt uppfinningen har det .visat sig* att -glnnrni- blandningen med minsta möjliga motstånd uppdelas och dras utmellan o s1oovso-2 stiften och gängorna i långa delströnnnar. En utomordentlig Inmogexmitet för gummiblarxdrxilxgera blev resultatet. - ._ Samtidigt kan, genom användning av mxnogerniserirxgssektimerrna de däremellan liggandematardelarrza vara utformade en- eller tvågäzmgigt och. :mycket djupt skurna :ned hög utetömngxapaaif-.et per varv utan att man behöver befara ohomogexxiteter såsom olikforxniga temperaturfördel- ningar.In practice, it has been found that, for example, the multi-threaded screw sections 8 and 9 should have the following thread numbers at certain spray sizes. _ _ II 90 times spraying machine- 2- single 150 times spray masksrx- 3- threaded - 200 times spray nozzle- 4- times 250 times It has been found suitable to design the length of the screw sections 8 and 9 in a certain relation to the diameter of the pins 4. which has been found to be particularly effective in a ratio between the screw electrolyte length> 8H and the diameter 4 of the pins of 1: 1 to 2: 2, i.e. when the screw selector 8 has a length of 0.2 D, the pins resp. the length of the dax non-threaded screw section between screw screws 8 and 9 has a length of 0,1-0,2 D '(D = diameter of the screw). via machining of Rana gummiblananingai: with the help of a thread resp. pin geometry according to the invention, it has been found that the mixture with the least possible resistance is divided and drawn between the pins and the threads in long sub-grooves. An excellent Inmogexmitet for gummiblarxdrxilxgera was the result. ... : very deeply cut: down high utetömngxapaaif-.et per revolution without having to fear homogexities such as different temperature distributions.

Vid 'ett jämförande försök på en sprutmaskin med m stiftcylin- der av det slag san visas i DE-æ 22 35 784 erhölls följande resultat: Sprutmaskinen var utrustad med 10 efter varandra anordnade ' stiftplaza. Gummiblandxxzingm som skulle bearbetas vilken uppvisade hu- vudsakliga: rumstenperatur, i infördes i sprutmaslcinen och efter att den passerat de 10 stiftplarxen bestämdes lurngenitetem- e när-efter beekiekeaee en spmmeexin enligt uppfinningen usa me- terial som uppvisade en rnotsvarande viskositet och temperatur. Efter att gunmxiblarxdninger; 'nade passerat 5 homogeniserixigssektiorxer 7 förelåg redan en Immgeniltet somvar med hoxnogerxzlteten hos materialet i en sprutmaskin axligt ovannämnda Offenlegxnxgsclzrift med två efter m- randra anordnade stiftplan oda en dubbel längd.In a comparative experiment on a sprayer with a pin cylinder of the type shown in DE-æ 22 35 784, the following results were obtained: The sprayer was equipped with 10 successive pin spacers. The rubber compound to be processed which exhibited the main: room stone temperature, was introduced into the spraying machine and after it passed the 10 pin plurks, the lurgenity was determined after which a sperm sample according to the invention was used which exhibited a corresponding viscosity and temperature. After gunmxiblarxdninger; After passing homogenizing sections 7, there was already an integral part of the material in a spraying machine axially above-mentioned Offenlegxnxgsclzrift with two pin planes arranged one after the other or a double length.

Av dessa jämförande försök framgår klar t att en sprutmaskin enligt uppfinningea kan utföras 50% kortare än en sprutmaskin enligt teknikens ståndpunkt samt att vid samma längd kan väsentligt mycket högre utstötzfixxgslcapaciteter utnyttjas utan att man behöver befara in- homogexzitet lm naterialet. i ' ' ~ . ~From these comparative experiments it is clear that a spraying machine according to the invention can be made 50% shorter than a spraying machine according to the prior art and that at the same length significantly higher ejection capacities can be utilized without having to worry about homogeneity in the material. i '' ~. ~

Claims (4)

- 18-1900750-2 PATENTKRAV- 18-1900750-2 PATENT REQUIREMENTS 1. l. Sprutmaskin med stiftcylinder för bearbetning av termo- plaster och elastomerer, med en i en cylinder roterbar skruv, varvid radiellt utsträckta mot skruvens axel pekande stift är anordnade utskjutande från cylinderns innervägg och fördelade på huvudsakligen likfiormiga avstånd runt omkretsen och varvid skruvens gängor är avbrutna vid de ställen pä vilka stiften skjuter in i cylindern, k ä n n e t e-c k n a d av att ändarna och inledningarna på de avbrutna skruvgängorna (3), mellan' vilka de vid cylindern fastsatta stiften (4) är placerade, sett i skruvens axiella riktning är anordnade på samma höjd så att de radiella avbrottsytorna hos-gängornas ändar (10) och gängornas inledningar (ll) ligger mittemot varandra i riktning med skruvens axel. _ _ "1. 1. Spraying machine with a pin cylinder for machining thermoplastics and elastomers, with a screw rotatable in a cylinder, the pins extending radially extending towards the axis of the screw being arranged projecting from the inner wall of the cylinder and distributed at substantially equal angular distances around the circumference and are broken at the places where the pins protrude into the cylinder, characterized in that the ends and leads of the broken screw threads (3), between which the pins (4) fixed to the cylinder are placed, seen in the axial direction of the screw are arranged at the same height so that the radial break surfaces of the ends (10) of the threads and the inlets (11) of the threads lie opposite each other in the direction of the axis of the screw. _ _ " 2. Sprutmaskin enligt krav l, k ä n nve t e c k n a d av att de radiella mittemot varandra liggande avbrottsytorna hos gängändarna (10) och -inledningarna (ll) hör till två fler- gängiga få ett avstånd från varandra anordnade skruvdelar (8,9) med en axiellt uppmätt gänglängd av ca 1 - 5 D, mellan vilka en gängfri skruvsektíon med en längd av.ca l - 5 D är anordnad. I ' 7Spraying machine according to Claim 1, characterized in that the radially opposite break-off surfaces of the threaded ends (10) and inlets (11) belong to two multi-threaded screw parts (8,9) arranged at a distance from one another. an axially measured thread length of about 1 - 5 D, between which a threadless screw section with a length of about 1 - 5 D is arranged. I '7 3. Sprutmaskin enligt krav 2, k_ä n n ent e c_k n a d av att sett i materialets strömningsriktning är inledningarna (15) till den flergängiga skruvdelens (8) gängor och ändarna (16) till gängorna på den bakom den gängfria sektionen anordnade flergängiga snäckdelen (9) utformade tillspetsade.Spraying machine according to claim 2, characterized in that seen in the direction of flow of the material, the inlets (15) of the threads of the multi-threaded screw part (8) and the ends (16) of the threads of the multi-threaded screw member (9) arranged behind the threadless section ) designed tapered. 4. Qprutmaskin enligt krav'2, k ä n n e t e c k n a d av att skruvdelarna (8) och (9) bildar homogeniseringssektioner (7) och av att ytterligare en- eller flergängiga_skruvdelar är anordnade mellan homogeniseringssektionerna (7),'varvid skruv- delarna (8,9) i homogeniseringssektionerna och de ytterligare skruvdelarna är utformade såsom separata delar och utbytbara.4. A spraying machine according to claim 2, characterized in that the screw parts (8) and (9) form homogenizing sections (7) and in that further single or multi-threaded screw parts are arranged between the homogenizing sections (7), the screw parts (8, 9) in the homogenization sections and the additional screw parts are designed as separate parts and replaceable.
SE8100750A 1980-02-01 1981-01-30 SPRAY MACHINE WITH PIN CYLINDER FOR WORKING THERMOPLASTES AND ELASTOMERS SE435824B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3003615A DE3003615C2 (en) 1980-02-01 1980-02-01 Screw extruder with pin cylinder

Publications (2)

Publication Number Publication Date
SE8100750L SE8100750L (en) 1981-08-02
SE435824B true SE435824B (en) 1984-10-22

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SE8100750A SE435824B (en) 1980-02-01 1981-01-30 SPRAY MACHINE WITH PIN CYLINDER FOR WORKING THERMOPLASTES AND ELASTOMERS

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JP (1) JPS56126143A (en)
DE (1) DE3003615C2 (en)
FR (1) FR2474946A1 (en)
GB (1) GB2068249B (en)
IT (1) IT1134809B (en)
NL (1) NL8006782A (en)
SE (1) SE435824B (en)

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DE3438649A1 (en) * 1984-10-22 1986-04-24 Windmöller & Hölscher, 4540 Lengerich SINGLE SCREW EXTRUSION FOR THERMOPLASTIC AND ELASTOMERS
GB2178691B (en) * 1985-07-16 1989-10-25 Farrel Bridge Ltd Screw extruders
DE3709798C2 (en) * 1987-03-25 1995-02-23 Krupp Ag Multi-part snail
DE59102180D1 (en) * 1990-12-14 1994-08-18 Berstorff Gmbh Masch Hermann Processes and extruders for processing and manufacturing rubber and thermoplastics.
DE4137969C1 (en) * 1990-12-14 1992-10-15 Berstorff Gmbh Masch Hermann
DE4114610C2 (en) * 1990-12-14 1994-05-26 Berstorff Gmbh Masch Hermann Pen transfer extruder
DE4120016C1 (en) * 1990-12-14 1992-07-02 Berstorff Gmbh Masch Hermann
DE4039942C1 (en) * 1990-12-14 1992-01-30 Berstorff Gmbh Masch Hermann
DE4114609C2 (en) * 1990-12-14 1994-06-09 Berstorff Gmbh Masch Hermann High-performance extruder with a constant number of gears in the inlet and outlet area of a transfer shear part
DE4209179C1 (en) * 1992-03-20 1993-01-14 Paul Troester Maschinenfabrik, 3000 Hannover, De
GB9210720D0 (en) * 1992-05-20 1992-07-08 Holyroyd Associates Limited Production of feedstock for compounding of polymeric materials
DE4244312C1 (en) * 1992-12-28 1994-01-20 Baumgarten Wilfried Screw extruder
US20050006850A1 (en) * 2003-05-05 2005-01-13 Gerold Barth Shaft of a shredding device and a shredding device
JP4338668B2 (en) * 2005-04-05 2009-10-07 住友ゴム工業株式会社 Rubber extruder
DE102016122277A1 (en) 2016-11-18 2018-05-24 Troester Gmbh & Co. Kg Pin-extruder
CN110919909B (en) * 2019-10-25 2021-12-28 青岛科技大学 Efficient continuous waste rubber regeneration equipment and preparation method

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DE2235784C3 (en) * 1972-07-21 1986-01-09 Uniroyal Englebert Reifen GmbH, 5100 Aachen Single-screw extruder for mixing and homogenizing high-viscosity rubber compounds and high-viscosity thermoplastics
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DE2461320A1 (en) * 1973-01-17 1976-07-08 Exxon Research Engineering Co Single screw extruder - having spaced discontinuous helical flights each centered between preceding flights

Also Published As

Publication number Publication date
FR2474946A1 (en) 1981-08-07
SE8100750L (en) 1981-08-02
IT8026787A0 (en) 1980-12-19
NL8006782A (en) 1981-09-01
DE3003615C2 (en) 1984-03-29
FR2474946B1 (en) 1985-04-26
JPS56126143A (en) 1981-10-02
DE3003615A1 (en) 1981-08-20
IT1134809B (en) 1986-08-20
GB2068249A (en) 1981-08-12
GB2068249B (en) 1983-05-25

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