GB890138A - Improvements in or relating to extrusion presses - Google Patents

Improvements in or relating to extrusion presses

Info

Publication number
GB890138A
GB890138A GB4979/60A GB497960A GB890138A GB 890138 A GB890138 A GB 890138A GB 4979/60 A GB4979/60 A GB 4979/60A GB 497960 A GB497960 A GB 497960A GB 890138 A GB890138 A GB 890138A
Authority
GB
United Kingdom
Prior art keywords
worm
feb
thread
relating
extrusion presses
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
GB4979/60A
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.)
KraussMaffei Extrusion GmbH
Original Assignee
Hermann Berstorff Maschinenbau Anstalt GmbH
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 Hermann Berstorff Maschinenbau Anstalt GmbH filed Critical Hermann Berstorff Maschinenbau Anstalt GmbH
Publication of GB890138A publication Critical patent/GB890138A/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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

890,138. Extruding sheets. BERSTORFF MASCHINENBAU-ANSTALT G.m.b.H., HERMANN. Feb. 12, 1960 [Feb. 25, 1959], No. 4979/60. Class 87(2). A sheet extrusion machine has a worm distributer 12 in the orifice 8. The worm 12 is either conical with a constant depth of thread and/or has a thread of reducing pitch. The worm 12 may be an extension of the screw 6, Fig. 1, separately driven, Fig. 3, or may be of centre feed with right and left hands, Fig. 4. The nozzle may have a pressure equalising slot and adjustable lips.
GB4979/60A 1959-02-25 1960-02-12 Improvements in or relating to extrusion presses Expired GB890138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE890138X 1959-02-25

Publications (1)

Publication Number Publication Date
GB890138A true GB890138A (en) 1962-02-28

Family

ID=6835770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4979/60A Expired GB890138A (en) 1959-02-25 1960-02-12 Improvements in or relating to extrusion presses

Country Status (1)

Country Link
GB (1) GB890138A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276075A (en) * 1963-11-04 1966-10-04 Norman F Harwood Extrusion apparatus
US5234330A (en) * 1991-06-14 1993-08-10 Eastman Kodak Company Dies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276075A (en) * 1963-11-04 1966-10-04 Norman F Harwood Extrusion apparatus
US5234330A (en) * 1991-06-14 1993-08-10 Eastman Kodak Company Dies

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