FR2365431A1 - THERMOPLASTIC MATERIAL EXTRUSION PROCESS AND MACHINE - Google Patents

THERMOPLASTIC MATERIAL EXTRUSION PROCESS AND MACHINE

Info

Publication number
FR2365431A1
FR2365431A1 FR7727146A FR7727146A FR2365431A1 FR 2365431 A1 FR2365431 A1 FR 2365431A1 FR 7727146 A FR7727146 A FR 7727146A FR 7727146 A FR7727146 A FR 7727146A FR 2365431 A1 FR2365431 A1 FR 2365431A1
Authority
FR
France
Prior art keywords
extrusion
orifice
machine
thermoplastic material
extrusion process
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.)
Granted
Application number
FR7727146A
Other languages
French (fr)
Other versions
FR2365431B3 (en
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.)
Leesona Corp
Original Assignee
Leesona Corp
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
Priority claimed from US05/727,155 external-priority patent/US4112039A/en
Application filed by Leesona Corp filed Critical Leesona Corp
Publication of FR2365431A1 publication Critical patent/FR2365431A1/en
Application granted granted Critical
Publication of FR2365431B3 publication Critical patent/FR2365431B3/fr
Granted 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling
    • 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
    • B29C48/06—Rod-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
    • B29C48/25—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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • 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
    • B29C48/04—Particle-shaped

Abstract

Machine d'extrusion de matière thermoplastique dont la filière comporte un dispositif de protection contre la formation de bouchons solidifiés dans les orifices d'extrusion. Chaque orifice 12' d'extrusion, délimité à l'intérieur de l'élément rapporté 22a, est entouré, à proximité. de son extrémité de sortie, d'une plaque ou d'un réservoir 26 de chaleur destiné à empêcher la formation de bouchons dans l'orifice 12' par solidification de la matière extrudée. Cette plaque 26 n'entre en contact que sur une faible surface, par un bossage 30, avec l'élément 22a, de manière à ne pas chauffer excessivement la matière extrudée à sa sortie de l'orifice 12'. Domaine d'application : extrusion de matières thermoplastiques.Thermoplastic extrusion machine, the die of which comprises a device for protecting against the formation of solidified plugs in the extrusion orifices. Each extrusion orifice 12 ', delimited inside the insert 22a, is surrounded, nearby. from its outlet end, a plate or a heat reservoir 26 intended to prevent the formation of plugs in the orifice 12 'by solidification of the extruded material. This plate 26 only comes into contact over a small area, by a boss 30, with the element 22a, so as not to excessively heat the extruded material at its exit from the orifice 12 '. Field of application: extrusion of thermoplastic materials.

FR7727146A 1976-09-27 1977-09-07 THERMOPLASTIC MATERIAL EXTRUSION PROCESS AND MACHINE Granted FR2365431A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/727,155 US4112039A (en) 1975-02-12 1976-09-27 Pelletizing process

Publications (2)

Publication Number Publication Date
FR2365431A1 true FR2365431A1 (en) 1978-04-21
FR2365431B3 FR2365431B3 (en) 1980-06-06

Family

ID=24921545

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7727146A Granted FR2365431A1 (en) 1976-09-27 1977-09-07 THERMOPLASTIC MATERIAL EXTRUSION PROCESS AND MACHINE

Country Status (11)

Country Link
JP (1) JPS5342253A (en)
BE (1) BE858442A (en)
BR (1) BR7706266A (en)
CA (1) CA1104780A (en)
CH (1) CH618381A5 (en)
DE (1) DE2741256A1 (en)
FR (1) FR2365431A1 (en)
GB (1) GB1590281A (en)
IT (1) IT1090860B (en)
NL (1) NL7710467A (en)
SE (1) SE7710208L (en)

Also Published As

Publication number Publication date
JPS5342253A (en) 1978-04-17
CH618381A5 (en) 1980-07-31
BE858442A (en) 1978-01-02
BR7706266A (en) 1978-05-30
DE2741256A1 (en) 1978-03-30
GB1590281A (en) 1981-05-28
FR2365431B3 (en) 1980-06-06
CA1104780A (en) 1981-07-14
SE7710208L (en) 1978-03-28
NL7710467A (en) 1978-03-29
IT1090860B (en) 1985-06-26

Similar Documents

Publication Publication Date Title
FR2421041A1 (en) PLASTIC ROUND GRANULATION DEVICE
ES2113453T3 (en) METHOD AND APPARATUS TO MANUFACTURE A COOPERATING ELEMENT PROVIDED WITH A SUBSTRATE FOR A SURFACE FASTENER.
US3533896A (en) Anchoring device of thermoplastic resin
ATE85938T1 (en) INTERNALLY INSULATED EXTRUDER NOZZLE.
SE8301891L (en) STRENGHOLT SPRAYING nozzle
BR9900265A (en) Molded surface closure and molding method and molding apparatus.
FR2524380B1 (en) ADJUSTABLE DIE MECHANISM FOR THE EXTRUSION OF A PROFILED STRIP OF PLASTIC MATERIAL
IT9021288A1 (en) DECORATIVE PLASTIC TAPE PROFILE AND PROCEDURE AND EQUIPMENT FOR ITS TRAINING
CA2102922A1 (en) Device for Cooling, Granulating and Drying Molten Strands of Synthetic Thermoplastic Material Emerging from Dies
FR2397928A1 (en) DEVICE FOR RECOVERING HOMOGENOUS OR HETEROGENOUS THERMOPLASTIC WASTE
ES2136373T3 (en) EXTRUSION DEVICE FOR PROFILE PIECES OF TWO LAYERS.
FR2365431A1 (en) THERMOPLASTIC MATERIAL EXTRUSION PROCESS AND MACHINE
SU680627A4 (en) Apparatus for granulating therloplastic rods
FR2399314A1 (en) IMPROVEMENTS MADE TO PLASTIC MATERIAL INJECTION DEVICES IN A MULTI-IMPRESSION MOLD
ES509633A0 (en) "IMPROVEMENTS IN THE EXTRUSION HEADS AND THE CORRESPONDING EXTRUDED PART".
BE874766A (en) DEVICE FOR MAKING TRANSVERSAL WELDING JOINTS ON STRIPES OF SUPERIMPOSED PLASTIC SHEET, ESPECIALLY FOR THE MANUFACTURE OF BAGS
BE744577A (en) DIE AND VALVE DEVICE FOR EXTRUSION OF PLASTICS
PT805744E (en) FLUIDIFIED COATING BY HOT FUSEO OF A LINER OF AN INTERNAL CONDUCT
BR9901714A (en) Molding method of molded surface closure, molded surface closure manufactured by the method, and molding apparatus thereof
JPS5493055A (en) Patterning of hollow molded article
FR2419154A1 (en) EXTRUSION DEVICE WITH CYLINDERS, ESPECIALLY FOR SCREW PLUGGER
FR2351705A1 (en) SHREDDER, ESPECIALLY FOR PLASTICS
BE843069A (en) IMPROVEMENTS RELATING TO DIE HEADS FOR THE EXTRUSION OF PLASTICS
JPS5777549A (en) Extruding head
JPS6220260Y2 (en)