DE1886983U - MELT SPINNING DEVICE. - Google Patents

Description

e s Ehr e Ib u

the company British Mylon Spinners Limited, Pontypöolj,

concerning

The priority, the Anm @ ldiang in the UK LS »October 1962 is claimed <>

The present lease relates to improvements to devices where synthetic polymeric threads are made by melt spinning =

Is isfe a method and an apparatus for Sehmeis spiders of a synthetic linear polymer known * where the ge <= sehmoissene Fol: re -? r through, © ine opening or openings of one

ii Kess Brfe * ^ @ es% ^ bHng snsd S ^ ulanspfj hHS « ®Am eisrsgw ^ s ^« te b Jsr

r «BswOngtics,, iigasäe ^ a, üiiiadag« ob. Die raeWiteije Sadteuliwg dar Afewaäshung fet nisht p

tevkt * τί, ϊ- ^ Φ: - .- ;, · umeHag «3» fimien stand in täsn AmtsoWöi, you can Jed «*« »»! we mm recbtfehe »ftiteßssss gieiihr ^ ffö öngas« Mm Wen3 «s. Upon request, "hiarvon ouci" MMtoftlan otferft negative 20 don Dblichen ftaisai .- ^ fe ". üm $ Hm Patwttmt, <Mrau * lMtt «iftti« lft

~ 2

J the spinneret plate is pressed out and a homogeneous and laterally undisturbed layer directly below the spinneret plate. Narrowest thin layer of an inert gas is provided, which is the common surface layer of iiindtstens Äera part of the. SpinnöüWe'n ·

flat ©, which contains the opening or openings .

In a preferred embodiment, this is known before · =

direction is Dasap-f used as inert gas and Ewar preferential «= - © facing the steam superheated to a temperature of _4, is similar to that in the Mow the spinneret and this steam is * ^τ in'Form a narrowing inwardly stream of applied to the extent of SpimidCise'nplat.te ".

-. "It is ■ lielterhin a .Verrichtung ^ spin to Schmelsve, a

synthetic linear polymer known -which a stock for the molten polymer and is provided with a metering pump through which the soiraoiseBe polymer from the supply first runs through a filter and then through "a © opening or openings of a spinneret is listed, 'where at the same time a constant flow of an inert gas on the surface the spinneret is extended ». This gas flow will ; / evenly and continuously 'supplied, so that a

. £) essentially homogeneous and laterally unbounded- layer of the with the whole surface of at least that part of the spinning ».

- ■ "■ nozzle plate in contact with whichever opening or

contains openings? In this case, the Steam passed through an annular slot, which surrounds the spinneret plate "

It is essential that the inert gas, preferably consisting of steam, is supplied in such a way that the with coming into contact with the surface of the spinning plate Layer is pure and homogeneous. Ss is still essential that the gas supply takes place evenly, d. H. in shape of an uninterrupted stream that is one · essentially has a uniform speed, so that the free flow of threads from the openings of the spinneret is not disturbed It is important to ensure that the threads get into the cooling medium as quickly as possible. To this Purpose is usually a steam distribution ring near or provided within the annular slot »Such a ' However, the ring is more fragile than other parts of the filter element and it can be soy. he 'on the mouthpiece of the slot attached, easily damaged, deal with-the PG Iymer smear and 13adur "oh, partially clog"

It has now been found that these drawbacks can be overcome more easily, regardless of whether or not a steam distribution ring is provided and whether the steam is essentially used at atmospheric pressure or a higher pressure, if

He hs of öberf IM & the spinnerets Platt © is eye leads .. when an annular Yerteilervorrichtung for "the steam around the

use

The upper part of the fi-lfeer "y% ® ™ ^{ffl" is} provided so that an essentially perfectly "even steam flow" is obtained before the steam enters the annular slot, and thus an uninterrupted, even steam current at the mouthpiece of the slot

will" . ";. -

The innovation therefore proposes a facility through which ... a "continuous inerfcgasstrjora." the surface ·. - the spinneret = * · plate carried out «Ird, and. maav by means of a flange ^ ,, the

a Änaahl ■ won holes has * DL® evenly. on φ. inserts

Outside / are arranged her.iam * a filter, the filter containing eip This VOSA lead LBeIies the upper part of a space einsp Sehmslzspinnvörrlchtung in the check άψρ filter insert is ^ u ^ einesa further Hing auifii which? .Die- Spinödüseii-- "plate- "surrounds, ' b% w" in d @ r Häh © · the same

As a matter of fact, the Hingffaurai is of sufficient length and • the reputation. Löeher is sufficient to cause the individual steam or gas streams to emerge from the holes and to be caught in an uninterrupted stream at the mouthpiece , 'so that further ¥ertefl@rvor.- devices, like a dividing ring, in which' Sehl ^ lts not 'are running ».

The innovation is shown in one of the drawings shape shown and swa'r shows

Fig. 1. a schematic cross section through a filter and a spinneret arrangement which according to FIG Innovation is formed and

Fig. 2 shows a static plan of a part

the Pig *! "

As can be seen from the drawings, the metal block 3] of a visual spinning unit is drilled through into this hole. a Dampfsuleiiungsrohr 1 is used, which the steam -. ; ; an upper annular space 5, within which the '; .. filter and .die spinneret is located., which su a filter insert 7 to-; '"Aresaiqmengefaßt" On the facilitated drying of the filter element 7 is single ^{*; i} lent wid shown in Umrißlinie- the spinneret 9 Is, ... shown schematically. "In the end of the hole 1 © sleeve or nozzle Il is screwed / which old one opening 13 is provided "■

The filter tnsebz 7 is held in its working position within the ring "space 5 by a screw clip 15"

■■■■ ■ '- ■ ". ■■■' .._

The upper shoulder of the screw sleeve 15 lies against one

. Correspondingly shaped flange 17 of the filter insert housing ο Straight above the contact area between 15 and 17 are in

Holes 19 are drilled through the planar at the same distance from each other, through which steam evenly pass from "the upper ring space 5 into a lower annular space 21". This lower annular space 21 expands after the spinneret 9. _o • The inclination of the wall of the lower © Ringrausies 21 is such -ausgebildet that they are inwardly directed "towards the center-perpetrator., ■ ---- Sp.inndüsenplatte back and öemgemäß the Bärapf- ■■ wstrom also dera center is fed to the spinneret ». '. ■ -._

use ■

• The shoulder of the Pilter * / T 1st -.- fluted to allow »easy passage of the Daapfes around the upper part of the filter insert .

■ ti ■. - ■

When the device is in operation, steam is under one. ,. * ■ '..' ■

Pressure from. -beispielsweise "0.5 kg / cia ² by di @ DC! s @ 11 a speed asife supplied ', welch® through the bore. ·. _ the Düsen8ffnung"'13 determined wircl _e' f B & Daaipf fills the ■ ■ i ■ . ". ■ ' einsatses ■. -

Part of the annulus around the upper part of the filter.

"- and. passes through ^: the 'holes 19 through into the lower ring space 21" In the Mäh® the lower opening of this.'"Hingra-umes - Sl. The direction of flow of the steam is changed in such a way that it is directed evenly towards the center of the spinneret 9 Earth the threads completely surrounded by a pure, non-swirling steam atmosphere «which is in the form of a thin layer near the exit point of the threads» ■.. ■ ·.

Claims (2)

l. _o SehmeXzspimwo'rriehtung, wherein the outlet openings of the au @ spun material, _s SINCL surrounded from the Spinndflsenplatt © of an inert gas or steam thereby gekenn'zaich »s net, that the or the luleitungsröhre (1) for the inert gas into the Filter insert (T) surrounding metal block. (- ^) "are inserted and the §as through one or more sleeves (H) - ■ with BUsenöffaisigen (15) an upper ring space (5) is fed α 2 ο Sehmelaspinnvor'riehtimg according to claim 1, characterized in that the filter insert (7) in the metal ! Blocks D) is held by a Schrauferauff © (15), which with its upper rim against a flange (17) of the ' .Filfcereln8 & t $ ge housing (7) is provided, which is provided with openings © of the flutes, through which the inert gas from the upper ring · = space (5) reaches a. Lower Bingrausi (21) « 3 »Söhmelzspinnvorriehtung according to claim 2» characterized in that the openings (19) are evenly distributed around the start of the flange »■ ^ o Melt spinning device according to one of claims 1 characterized * that the lower HiBgraura see near "8th expanded below and the lower end © of the same against the underside of äer Dttsenplatte (9) is rottet 1st. innvorriehtung "as described and clarge- = ÖH.-1M ©. H. FlNCKS, DIPL-ING. H. BOHS S. S. Asesa