GB2284176A - Process and apparatus for producing strands of low density extruded material - Google Patents
Process and apparatus for producing strands of low density extruded materialInfo
- 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- Withdrawn
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
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>
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)
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 |
WO2014151027A1 (en) * | 2013-03-15 | 2014-09-25 | Altria Client Services Inc. | Methods and machines for making oral products |
Citations (5)
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 |
-
1992
- 1992-08-20 GB GB929217719A patent/GB9217719D0/en active Pending
-
1993
- 1993-08-20 GB GB9502449A patent/GB2284176A/en not_active Withdrawn
- 1993-08-20 AU AU47290/93A patent/AU4729093A/en not_active Abandoned
- 1993-08-20 WO PCT/GB1993/001773 patent/WO1994004340A1/en active Application Filing
Patent Citations (5)
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 |
WO1994004340A1 (en) | 1994-03-03 |
AU4729093A (en) | 1994-03-15 |
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) |