GB1349605A - Extrusion die deckle means - Google Patents

Extrusion die deckle means

Info

Publication number
GB1349605A
GB1349605A GB299372A GB299372A GB1349605A GB 1349605 A GB1349605 A GB 1349605A GB 299372 A GB299372 A GB 299372A GB 299372 A GB299372 A GB 299372A GB 1349605 A GB1349605 A GB 1349605A
Authority
GB
United Kingdom
Prior art keywords
die
orifice
deckle
bolt
groove
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
GB299372A
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.)
Egan Machinery Co
Original Assignee
Egan Machinery Co
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 Egan Machinery Co filed Critical Egan Machinery Co
Publication of GB1349605A publication Critical patent/GB1349605A/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
    • B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets

Landscapes

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

Abstract

1349605 Sheet extrusion die EGAN MACHINERY CO 21 Jan 1972 [21 Jan 1971 17 June 1971] 2993/72 Heading B5A A flat sheet or film die is provided at each width extremity of its extrusion orifice 31, Fig. 6, with deckle means 41 and 38 respectively at the inlet to, and externally of the outlet of the orifice 31, the deckle means being simultaneously or independently adjustable across the width of the orifice, and the means 41 in use having its end 43 adjusted inwardly of the end of the means 38 by a distance "X", Fig. 1, of 0À25 to 2À0 inches, to avoid the formation of beaded edges on the extruded sheet or film arising from contraction upon issuing from the orifice 31. Each deckle means 38 is carried for adjustment by a member 35 which is slidable along surfaces 17, 18 of the die lips 13, 14, by means of a pinion 28 engaging rack teeth 37 of the member 35, and which is clamped in position, together with the means 38, by screws 40. Each deckle means 41 comprises a rod having a portion 44 outside the die, at right angles to a portion 42 within the die which tapers towards the end 43 and which is provided with four symmetrically distributed grooves 46 and 47 each having relatively inclined sides meeting at an apex to define the base of the groove, each groove increasing in depth towards the end 43 of the rod where the base of each groove is co-incident with the rod axis. The means 41 is slidable and rotatable through a die guide sleeve 50, having an external thread for engagement with an internally threaded sleeve 51, and with a sealing ring 52 for the means 41 being located between the sleeves 50, 51. For adjustment of means 41 independantly of, or simultaneously with the means 38, a plate 53 is bolted to the member 35 and carries a threadedly engaging tapered bolt 57, through a bore of which the means 41 is rotatable and slidable, and within which it is clamped upon contraction of the bore, permitted by diametrically extending slots at the narrower end of the bolt 57 and is effected when the bolt 57 is threadedly tightened into the plate 53. One of the die lips 14 is adjustable to vary the depth of the orifice 31, at a bolt connection 23. The die may be heated by electric means (not shown).
GB299372A 1971-01-21 1972-01-21 Extrusion die deckle means Expired GB1349605A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10845971A 1971-01-21 1971-01-21
US15413871A 1971-06-17 1971-06-17

Publications (1)

Publication Number Publication Date
GB1349605A true GB1349605A (en) 1974-04-10

Family

ID=26805929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB299372A Expired GB1349605A (en) 1971-01-21 1972-01-21 Extrusion die deckle means

Country Status (3)

Country Link
JP (1) JPS5281372A (en)
DE (1) DE2202484C2 (en)
GB (1) GB1349605A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608063C2 (en) * 1976-02-27 1983-01-13 Reifenhäuser KG, 5210 Troisdorf Device for adjusting the width of slot dies for the extrusion of thermoplastic material
JPS592818B2 (en) * 1978-01-27 1984-01-20 サンレ−冷熱株式会社 Submerged combustion device
DE3805774A1 (en) * 1988-02-24 1989-09-07 Sigmund Boos SLOT NOZZLE, ESPECIALLY WIDE SLOT NOZZLE, FOR EXTRUDING PLANTS IN THE PLASTIC INDUSTRY
DE69315268T2 (en) * 1992-07-17 1998-05-28 Cloeren Co Internal boundary device
US5511962A (en) * 1993-02-01 1996-04-30 Extrusion Dies, Inc. Extrusion die
AT724U1 (en) * 1995-06-14 1996-04-25 Engel Gmbh Maschbau NOZZLE WITH A NOZZLE OPENING FOR THE INTRODUCTION OF MOLTEN PLASTIC

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3018515A (en) * 1957-12-23 1962-01-30 Clyde Paper Company Ltd Manufacture of plastic sheets
US2982995A (en) * 1958-10-09 1961-05-09 St Regis Paper Co Control of the edge formation of extruded plastic film
US3238563A (en) * 1962-12-31 1966-03-08 Black Clawson Co Deckles for plastic extrusion machines
US3293689A (en) * 1964-05-04 1966-12-27 Frank W Egan & Company Extrusion die deckle

Also Published As

Publication number Publication date
DE2202484C2 (en) 1982-12-30
DE2202484A1 (en) 1972-07-27
JPS5281372A (en) 1977-07-07
JPS5421232B2 (en) 1979-07-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years