NL92405C - - Google Patents

Info

Publication number
NL92405C
NL92405C NL92405DA NL92405C NL 92405 C NL92405 C NL 92405C NL 92405D A NL92405D A NL 92405DA NL 92405 C NL92405 C NL 92405C
Authority
NL
Netherlands
Prior art keywords
pump
screw
gear
melt
metering
Prior art date
Application number
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.)
Publication date
Application granted granted Critical
Publication of NL92405C publication Critical patent/NL92405C/xx

Links

Classifications

    • 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
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/022—Melting the material to be shaped
    • 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
    • B29C48/03—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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • 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
    • B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
    • B29C48/37—Gear pumps
    • 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
    • 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
    • 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
    • D01D1/06—Feeding liquid to the spinning head

Abstract

<PICT:0823261/IV (a)/1> In melt-spinning apparatus of the type in which the molten material is supplied by a screw-type extruder to a positive displacement metering pump of the rotary gear type, the driving shaft of the metering pump is driven by the screw of the screw type extruder or pump, the drive being taken from the end of the screw at the discharge end of the screw pump and the coupling or other drive from the screw to the metering pump being enclosed in a casing or housing, the free space in which communicates with the free spaces in the screw pump and metering pump casings respectively and the joints between the drive casing and the screw pump and metering pump casings respectively being liquid-tight. As shown in Fig. 1, grains of polymer 2 in the supply vessel 1 are melted by the spiral tube melting grid 5 to which a heating fluid is supplied through the inlet end 6 and thereafter flows through the heating jacket 9 surrounding the melt receiver 8 and the heating jacket 20 surrounding the casing 13 of a screw pump 12. The melt flows through channels 10, 11 to the screw pump 12 in which the melt is moved towards the discharge port 25 by the screw 14 integral with the shaft 15 carrying the gear-wheel 16. The melt is pumped under pressure through the discharge port 25 and inlet 26 to the metering pump 27 which supplies the melt through duct 34 and filter 35 to the monofil spinneret 38. The discharge end of the screw 14 is integral with a journal 24 provided at its free end with a groove 31 and rotatably mounted in the bore 23 in the closure 21 attached to casing 13 by bolts 22. The tongue 30 at the free end of the shaft 29 of the gear pump 27 fits into the groove 31. The pump 27 is attached to the closure 21 by bolts 28. Melt leaking out of the pump 27 is immediately picked up by the fresh melt at the discharge end of the screw pump and is at once returned to the gear pump together with fresh melt. Decomposition and carbonizing of melt due to long residence in the pump assembly are thereby prevented and the gear pump does not require a packing gland. In the other illustrated embodiment of the invention the melt is delivered by the screw pump to three metering gear pumps in parallel via a liquid-tight housing containing a gear-wheel coupled to the discharge end of the screw pump screw and mounted on the drive shaft of one of the gear pumps and also gear-wheels mounted on the shafts of the other two gear-pumps. The first gear-wheel drives the other gear-wheels either directly or through intermediate gearwheels, all the gear-wheels being in the same plane.
NL92405D 1955-10-10 NL92405C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL344517X 1955-10-10

Publications (1)

Publication Number Publication Date
NL92405C true NL92405C (en) 1900-01-01

Family

ID=19784836

Family Applications (2)

Application Number Title Priority Date Filing Date
NL201106D NL201106A (en) 1955-10-10
NL92405D NL92405C (en) 1955-10-10

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL201106D NL201106A (en) 1955-10-10

Country Status (6)

Country Link
BE (1) BE550654A (en)
CH (1) CH344517A (en)
DE (1) DE1216478B (en)
FR (1) FR1160385A (en)
GB (1) GB823261A (en)
NL (2) NL92405C (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2059815B (en) * 1979-10-11 1984-04-26 Wood T J Mastic dispenser
US4383813A (en) * 1981-07-23 1983-05-17 Cuisinarts, Inc. Pasta extruder apparatus
US4461734A (en) * 1982-09-13 1984-07-24 Union Carbide Corporation Process for plasticization and pumping of low bulk density plastics
IT1197020B (en) * 1986-07-29 1988-11-25 Fare Spa FLAT HEAD FOR THE EXTRACTION OF THERMOPOLASTIC MATERIALS IN SHEET AND LEAF, PROVIDED WITH TWO OR MORE CONDUITS, FOR FEEDING THE SAME MATERIALS
DE8812638U1 (en) * 1988-10-07 1990-02-01 Claassen, Henning J., 2120 Lueneburg, De
US5061170A (en) * 1989-12-08 1991-10-29 Exxon Chemical Patents Inc. Apparatus for delivering molten polymer to an extrusion
DE4115246C1 (en) * 1991-05-10 1992-05-14 Paul Troester Maschinenfabrik, 3000 Hannover, De
DE4126390A1 (en) * 1991-08-09 1993-02-11 Werner & Pfleiderer MIXING AND TREATMENT DEVICE WITH DISCHARGE PUMP
CN1053934C (en) * 1993-02-18 2000-06-28 巴马格股份公司 Thermoplastic thread spinning installation
EP1159120A1 (en) * 1999-03-11 2001-12-05 A-Z Formen- und Maschinenbau GmbH Single rotor extruders
AT503323B1 (en) * 2005-01-18 2008-11-15 Erema STRUCTURE MOLDING COMPONENT AND METHOD FOR ACCESSING THE SAME
DE202005006300U1 (en) * 2005-04-19 2005-07-07 Delle Vedove Maschinenbau Gmbh Adhesive melter with slot jet applicator for applying adhesive has pump with filter and jet rod fitted compactly in heat conducting block
CN103711693B (en) * 2014-01-16 2017-01-11 苏州工业园区华西泵业有限公司 multi-outlet spinning metering pump
CN110528091A (en) * 2019-08-23 2019-12-03 神马实业股份有限公司 Polymer melting spinning processing unit (plant)
CN117565349B (en) * 2023-12-29 2024-04-12 青岛汇天隆工程塑料有限公司 Plastic extrusion device and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE461923A (en) * 1940-08-02 1900-01-01
GB675621A (en) * 1949-06-30 1952-07-16 American Viscose Corp Improvements in or relating to the production of artificial filaments
NL168521B (en) * 1951-04-06 1900-01-01 Schering Ag PROCESS FOR THE PREPARATION OF STEROIDE DERIVATIVES, PROCESS FOR THE PREPARATION OF A PHARMACEUTICAL PREPARATION, AND FORMED PREPARATION.
BE513159A (en) * 1951-07-31

Also Published As

Publication number Publication date
CH344517A (en) 1960-02-15
FR1160385A (en) 1958-07-15
DE1216478B (en) 1966-05-12
GB823261A (en) 1959-11-11
BE550654A (en) 1900-01-01
NL201106A (en) 1900-01-01

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