GB1079791A - Improvements in or relating to extrusion apparatus - Google Patents

Improvements in or relating to extrusion apparatus

Info

Publication number
GB1079791A
GB1079791A GB4372/65A GB437265A GB1079791A GB 1079791 A GB1079791 A GB 1079791A GB 4372/65 A GB4372/65 A GB 4372/65A GB 437265 A GB437265 A GB 437265A GB 1079791 A GB1079791 A GB 1079791A
Authority
GB
United Kingdom
Prior art keywords
disc
heaters
impeller
helical passageway
screw impeller
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
GB4372/65A
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.)
Hercules LLC
Original Assignee
Hercules LLC
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 Hercules LLC filed Critical Hercules LLC
Publication of GB1079791A publication Critical patent/GB1079791A/en
Expired 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/47—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using discs, e.g. plasticising the moulding material by passing it between a fixed and a rotating disc that are coaxially arranged
    • 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
    • B29C48/03—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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,079,791. Ceetripetal extruders. HERCULES Inc. Feb. 1, 1965 [Feb. 19, 1964], No. 4372/65. Heading B5A. [Also in Division B1] An extrusion moulding machine, or plasticizer, for use in conjunction with injectionmoulding machines, is particularly intended for use with synthetic thermoplastic resins, and comprises a fixed disc 1 provided with a spiral ridge 2, and an imperforate disc 7 mounted for rotation with a screw impeller 23, the discs 1 and 7 and ridge 2 forming a helical passageway between a hopper 17 and a central aperture 4. Disc 1 is provided with electrical or fluid heaters 21, and in operation, material fed from hopper 17 by screw impeller 18 and/or by gravity is urged along the helical passageway by disc 7, the material being plasticized prior to emergence through aperture 4. It is stated that the decrease in volume of the material consequent on plasticization is compensated for for by having channel (O), Fig. 2 (not shown), of greater width than channels (3), which are of equal width, and by the fact that the velocity of the material-contacting surface of disc 7 increases towards its periphery. Also blending, e.g. of polymers with additives such as lubricants, stabilizers or pigments, is effective in the helical passageway since substantial reverse flow of the material may take place. Disc 7, Fig. 3, is axially adjustable by movement of a ring 13 on threaded shaft 14 and barrel 24 of impeller 23 may have heaters 27 similar to heaters 21. In a second embodiment, Fig. 1 (not shown), the screw impeller is dispensed with. Materials mentioned are polypropylene, polyethylene terephthalate and carbon black as an additive. Types of extrusion mentioned are film, filament and tube making, wire coating, pelletizing and in association with blow-moulding.
GB4372/65A 1964-02-19 1965-02-01 Improvements in or relating to extrusion apparatus Expired GB1079791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34599764A 1964-02-19 1964-02-19

Publications (1)

Publication Number Publication Date
GB1079791A true GB1079791A (en) 1967-08-16

Family

ID=23357484

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4372/65A Expired GB1079791A (en) 1964-02-19 1965-02-01 Improvements in or relating to extrusion apparatus

Country Status (2)

Country Link
CH (1) CH424228A (en)
GB (1) GB1079791A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108511672A (en) * 2017-02-24 2018-09-07 微宏动力系统（湖州）有限公司 Extrusion coated die head
CN114311384A (en) * 2020-12-01 2022-04-12 湖南豪镨博德新材料科技有限公司 Composite material granulating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108511672A (en) * 2017-02-24 2018-09-07 微宏动力系统（湖州）有限公司 Extrusion coated die head
CN114311384A (en) * 2020-12-01 2022-04-12 湖南豪镨博德新材料科技有限公司 Composite material granulating device

Also Published As

Publication number Publication date
CH424228A (en) 1966-11-15

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