DE841485C - Device for spinning meltable plastics - Google Patents

Device for spinning meltable plastics

Info

Publication number
DE841485C
DE841485C DEV427D DEV0000427D DE841485C DE 841485 C DE841485 C DE 841485C DE V427 D DEV427 D DE V427D DE V0000427 D DEV0000427 D DE V0000427D DE 841485 C DE841485 C DE 841485C
Authority
DE
Germany
Prior art keywords
filter
pump
titer
spinning
nozzle
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
DEV427D
Other languages
German (de)
Inventor
Alfons Dipl-Ing Dr Jasicek
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.)
Glanzstoff AG
Original Assignee
Glanzstoff AG
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 Glanzstoff AG filed Critical Glanzstoff AG
Priority to DEV427D priority Critical patent/DE841485C/en
Application granted granted Critical
Publication of DE841485C publication Critical patent/DE841485C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/04—Melting filament-forming substances
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/287—Raw material pre-treatment while feeding
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • 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
    • B29C48/387—Plasticisers, homogenisers or feeders comprising two or more stages using a screw extruder and a gear pump
    • 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
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/692—Filters or screens for the moulding material in the form of webs displaceable for using adjacent areas consecutively
    • 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

Description

Nach Patent 834 420 verspinnt man schmelzbare Kunststoffe in der Weise, daß der in körnige oder pulverisierte Form gebrachte Kunststoff, nachdem er eine seine Plastifizierung verhindernde Zone durchlaufen hat, unmittelbar vor der Titerpumpe geschmolzen wird, wobei der vor der Schmelze liegende, noch feste, aber zum Teil schon erweichte Kunststoff unter ständiger Nachlieferung von frischem Kunststoff durch Vermittlung einer Förder- und Preßvorrichtung mit elastischem Kupplungsorgan derart dicht gegen dieSclimelzegepreßt wird, daß ein jedes Verändern des Künststof@.ieS verhütender Luftabschluß der Schmelze entsteht, die sodann der Titerpumpe zufließt und durch diese aus der Spinndüse ausgepreßt wird.According to patent 834 420, meltable plastics are spun in the manner that the brought into granular or powdered form plastic after having a has passed through its plasticization-preventing zone, immediately in front of the titer pump is melted, with the one lying in front of the melt, still solid, but partly already softened plastic with constant replenishment of fresh plastic by arranging a conveying and pressing device with an elastic coupling member is pressed so tightly against the skin that each change in the plastic preventive air exclusion of the melt is created, which then flows to the titer pump and is squeezed out of the spinneret through this.

Damit verhindert wird, daß in der Schmelze vorhandene Fremdkörper in die Titerpumpe gelangen, was naturgemäß zu Störungen Anlaß gibt, ist erfindungsgemäß der Titerpumpe ein Filter vorgeschaltet, und zwar zweckmäßig ein Filter nach Art eines sog. Kerzenfilters. Die Filterschicht ist vorteilhaft und in recht einfacher Weise durch Rollen eines feinen Drahtgewebes gebildet.This prevents foreign bodies present in the melt get into the titer pump, which naturally gives rise to disturbances, is according to the invention the titer pump is preceded by a filter, expediently a filter according to Art a so-called candle filter. The filter layer is advantageous and quite simple Way formed by rolling a fine wire mesh.

Um nun ein bequemes Auswechseln des der Titerpumpe vorgeschalteten Filters zu ermöglichen, empfiehlt es sich, die Titerpumpe und die Spinndüse zu einer gemeinsamen ausbaubaren Einheit zusammenzufassen.In order to now make it easy to change the upstream of the titer pump To enable filters, it is advisable to combine the titer pump and the spinneret into one to summarize common expandable unit.

Ein Ausführungsbeispiel der Vorrichtung nach der l?rfindung zeigt die Zeichnung: Der zu verspinnende Kunststoff wird in der Schmelzkammer* i geschmolzen und sammelt sich dann in deren Sack 2. Die Beheizung der Schmelzkammer geschieht durch eine in dem Mantelraum 3 befindliche und beispiels-,veise durch Heizstäbe erhitzte Heizflüssigkeit. Durch eine Preßvorrichtung, die nicht Gegenstand der vorliegenden Erfindung ist, wird die Schmelze ständig unter Druck gehalten, so daß diese durch (las Filter 4 hindurchgedrückt wird. Das Filter ,4 besteht aus einer Rolle aus feinmaschigem Drahtgewebe und ist an 'den- beiden Stirnseiten abgedichtet. Durch den Kana15 der Filterkerze 6 fließt die Schmelze der Titerpumpe 7 zu und gelangt dann von dort aus über eine Siebplatte 8 zur Spinndüse cg. Die Löcher der Siebplatte 8 sind kleiner als die der Sphindüse, aber der Gesamtquerschnitt aller der Löcher der Siebplatte ist erheblich größer als der der Spinndüse. Dadurch werden alle von der Schmelze trotz des Filters 4 noch mitgeführten kleinen Teilchen, die zu Düsenverstopfungen führen würden, zurückgehalten, ohne daß der Pumpendruck zur Spinndüse hin nennenswert geschmälert würde. Infolge des Einbaues des Filters 4 vor der Titerpumpe und der Siebplatte 8 vor der Spinndüse bleibt die Düse sehr lange Zeit betriebsfähig.An embodiment of the device according to the invention is shown the drawing: The plastic to be spun is melted in the melting chamber * i and then collects in their sack 2. The melting chamber is heated by one located in the jacket space 3 and, for example, by heating rods heated heating fluid. By a pressing device which is not the subject of the present Invention is, the melt is kept constantly under pressure, so that this through (The filter 4 is pushed through. The filter 4 consists of a roll of fine-meshed Wire mesh and is sealed on both ends. Through the canal Filter candle 6, the melt flows to the titer pump 7 and then arrives from there from through a sieve plate 8 to the spinneret cg. The holes in the sieve plate 8 are smaller than that of the Sphind nozzle, but the total cross-section of all of the holes in the sieve plate is considerably larger than that of the spinneret. This will all of the melt despite the filter 4 still entrained small particles, which lead to nozzle blockages would lead, held back without the pump pressure towards the spinneret being significant would be diminished. As a result of the installation of the filter 4 in front of the titer pump and the Sieve plate 8 in front of the spinneret, the nozzle remains operational for a very long time.

Claims (4)

PATEN T A N S P R Ü C H E i. Vorrichtung zum Verspinnen schmelzbarer Kunststoffe nach Patent 834 42o, dadurch gekennzeichnet, daß der Titerpumpe ein Filter, zweckmäßig ein solches nach Art der Kerzenfilter, vorgeschaltet ist. PATEN TA N SP RÜ C H E i. Device for spinning fusible plastics according to patent 834 42o, characterized in that the titer pump is preceded by a filter, expediently one of the candle filter type. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß das Filter aus einer Drahtgeweberolle gebildet ist. 2. Apparatus according to claim i, characterized in that the Filter is formed from a wire mesh roll. 3. Vorrichtung nach Anspruch i und 2, dadurch gekennzeichnet, daß zwecks bequemen Auswechselns des Filters die Titerpumpe und die Spinndüse zu einer gemeinsamen ausbaubaren Einheit zusammengefaßt sind. 3. Apparatus according to claim i and 2, characterized in that the titer pump for the purpose of convenient replacement of the filter and the spinneret are combined into a common expandable unit. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Düse eine Siebplatte vorgeschaltet ist, deren Löcher kleiner sind als die Düsenbohrungen, aber einen Gesamtquerschnitt aufweisen, der beträchtlich größer ist als der Gesamtquerschnitt der Düsenbohrungen.4. Apparatus according to claim 3, characterized in that the nozzle has a sieve plate is connected upstream, the holes of which are smaller than the nozzle bores, but one Have total cross-section which is considerably larger than the total cross-section the nozzle holes.
DEV427D 1942-10-21 1944-01-25 Device for spinning meltable plastics Expired DE841485C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV427D DE841485C (en) 1942-10-21 1944-01-25 Device for spinning meltable plastics

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE292356X 1942-10-21
DEV427D DE841485C (en) 1942-10-21 1944-01-25 Device for spinning meltable plastics

Publications (1)

Publication Number Publication Date
DE841485C true DE841485C (en) 1952-06-16

Family

ID=25779485

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV427D Expired DE841485C (en) 1942-10-21 1944-01-25 Device for spinning meltable plastics

Country Status (1)

Country Link
DE (1) DE841485C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947598A (en) * 1956-09-05 1960-08-02 Maragliano Domenico Producing shaped articles comprising isotactic polypropylene
US5601854A (en) * 1993-12-17 1997-02-11 Zimmer Aktiengesellschaft Spinning head with filter cartridge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947598A (en) * 1956-09-05 1960-08-02 Maragliano Domenico Producing shaped articles comprising isotactic polypropylene
US5601854A (en) * 1993-12-17 1997-02-11 Zimmer Aktiengesellschaft Spinning head with filter cartridge

Similar Documents

Publication Publication Date Title
DE2029596A1 (en) Process for gas filtration and for the removal of filter residues from filters
DE841485C (en) Device for spinning meltable plastics
DE1917759A1 (en) Device especially for railroad, sensitive goods
DE1519637C3 (en) Device for maintaining an even distribution of liquid on the heating pipes of falling film evaporators, especially for the sugar industry
DE528840C (en) Device for spinning rayon using the copper oxide ammonia draw spinning process
DE889508C (en) Process for preparing pulp flakes for post-treatment
DE1785165B2 (en) METHOD AND DEVICE FOR PRODUCING FIBER NON-WOVEN FABRICS
DE2356569A1 (en) Cigarette filter for low-nicotine smoking - paper perforated plates across smoke flow spaced increasingly along smoke path
DE561483C (en) Filter cloth for filtering liquids
DE1669362C3 (en) Process for the continuous carbonization of wool
DE746548C (en) Device for venting viscose
AT126572B (en) Apparatus for dry spinning of rayon.
DE705292C (en) Screw press for the separation of viscous, resinous masses from liquids of lower viscosity
DE138703C (en)
DE966755C (en) Soap extruder
DE329975C (en) Filter for pulp solutions located in front of the spinneret
DE1536872A1 (en) Filtration method
DE725999C (en) Compound drafting system for roving machines
AT132955B (en) Device for cleaning, especially dust removal from air and. like
DE1708017C (en) Chemical cartridge for breathing apparatus
DE2356042C3 (en) Device for mashing in fine fibrous solids with a solution
DE1635727C3 (en) Plant for the production of a random fiber fleece from endless threads
DE964015C (en) Process for cleaning the filter elements of dust collectors with flat filter cloth surfaces
DE555679C (en) Pasta press with horizontal distributor pipe
DE562001C (en) Method for drying rayon cakes