GB2284176A - Process and apparatus for producing strands of low density extruded material - Google Patents

Process and apparatus for producing strands of low density extruded material

Info

Publication number
GB2284176A
GB2284176A GB9502449A GB9502449A GB2284176A GB 2284176 A GB2284176 A GB 2284176A GB 9502449 A GB9502449 A GB 9502449A GB 9502449 A GB9502449 A GB 9502449A GB 2284176 A GB2284176 A GB 2284176A
Authority
GB
United Kingdom
Prior art keywords
die
low density
extruded material
density extruded
producing strands
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.)
Withdrawn
Application number
GB9502449A
Other versions
GB9502449D0 (en
Inventor
Michael Patrick Parker
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.)
Rothmans International Services Ltd
Rothmans International Ltd
Original Assignee
Rothmans International Services Ltd
Rothmans International Ltd
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 Rothmans International Services Ltd, Rothmans International Ltd filed Critical Rothmans International Services Ltd
Publication of GB9502449D0 publication Critical patent/GB9502449D0/en
Publication of GB2284176A publication Critical patent/GB2284176A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
    • A23P30/30—Puffing or expanding
    • A23P30/32—Puffing or expanding by pressure release, e.g. explosion puffing; by vacuum treatment
    • A23P30/34—Puffing or expanding by pressure release, e.g. explosion puffing; by vacuum treatment by extrusion-expansion
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
    • A24B3/182—Puffing
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/30—Expanding the moulding material between endless belts or rollers
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/35—Extrusion nozzles or dies with rollers
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/44—Compression means for making articles of indefinite length
    • B29C43/46—Rollers
    • B29C2043/461—Rollers the rollers having specific surface features
    • B29C2043/464—Rollers the rollers having specific surface features having projections or knives, e.g. for cutting-out or for forming local depressions
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/44—Compression means for making articles of indefinite length
    • B29C43/46—Rollers
    • B29C2043/468—Rollers take-off rollers, i.e. arranged adjacent a material feeding device

Abstract

A die for the extrusion of a mix for expansion beyond the die is formed by the nip between cam-surfaced rollers (26', 27') at least one of which is grooved. Extrudate is delivered through over-size nozzle (24) to the nip. Upon pressure rise at the die being sensed, the rollers are rotated through 180 to clear any blockage and to re-form the die with another part of their circumference. Notches (63) on side faces (28') of the nozzle conforming to the roller surfaces (29', 30') assist in preventing back-leakage of the extrudate. <IMAGE>
GB9502449A 1992-08-20 1993-08-20 Process and apparatus for producing strands of low density extruded material Withdrawn GB2284176A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929217719A GB9217719D0 (en) 1992-08-20 1992-08-20 Process and apparatus for producing stands of low density extruded material
PCT/GB1993/001773 WO1994004340A1 (en) 1992-08-20 1993-08-20 Process and apparatus for producing strands of low density extruded material

Publications (2)

Publication Number Publication Date
GB9502449D0 GB9502449D0 (en) 1995-03-29
GB2284176A true GB2284176A (en) 1995-05-31

Family

ID=10720676

Family Applications (2)

Application Number Title Priority Date Filing Date
GB929217719A Pending GB9217719D0 (en) 1992-08-20 1992-08-20 Process and apparatus for producing stands of low density extruded material
GB9502449A Withdrawn GB2284176A (en) 1992-08-20 1993-08-20 Process and apparatus for producing strands of low density extruded material

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB929217719A Pending GB9217719D0 (en) 1992-08-20 1992-08-20 Process and apparatus for producing stands of low density extruded material

Country Status (3)

Country Link
AU (1) AU4729093A (en)
GB (2) GB9217719D0 (en)
WO (1) WO1994004340A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2547298C1 (en) * 2011-03-29 2015-04-10 Джапан Тобакко Инк. Method for obtaining sliced fibre, device for obtaining sliced fibre and sliced fibre
AU2013203316B2 (en) 2012-09-25 2015-09-24 Angel Group Co., Ltd. Card shoe apparatus and table game system
EP2967111A1 (en) * 2013-03-15 2016-01-20 Altria Client Services LLC Methods and machines for making oral products

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA741721A (en) * 1966-08-30 H. Collins Frederick Pelletizing process and apparatus
DE1226778B (en) * 1961-11-10 1966-10-13 Metzeler Ag Extrusion head for the production of strangfoermigen bodies made of rubber or the like
US3857664A (en) * 1973-11-28 1974-12-31 Arco Polymers Inc Forming apparatus for multiple stream shaping
EP0112058A2 (en) * 1982-12-13 1984-06-27 Mobil Oil Corporation A method of and apparatus for forming a polymeric sheet structure having comparatively high density skin layers and a comparatively low density core layer
US4696634A (en) * 1985-06-06 1987-09-29 Triple "F", Inc. Apparatus for particulating an oleaginous product

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA741721A (en) * 1966-08-30 H. Collins Frederick Pelletizing process and apparatus
DE1226778B (en) * 1961-11-10 1966-10-13 Metzeler Ag Extrusion head for the production of strangfoermigen bodies made of rubber or the like
US3857664A (en) * 1973-11-28 1974-12-31 Arco Polymers Inc Forming apparatus for multiple stream shaping
EP0112058A2 (en) * 1982-12-13 1984-06-27 Mobil Oil Corporation A method of and apparatus for forming a polymeric sheet structure having comparatively high density skin layers and a comparatively low density core layer
US4696634A (en) * 1985-06-06 1987-09-29 Triple "F", Inc. Apparatus for particulating an oleaginous product

Also Published As

Publication number Publication date
GB9217719D0 (en) 1992-09-30
AU4729093A (en) 1994-03-15
WO1994004340A1 (en) 1994-03-03
GB9502449D0 (en) 1995-03-29

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)