GB934048A - Improvements in or relating to the stretching of plastic foils - Google Patents
Improvements in or relating to the stretching of plastic foilsInfo
- Publication number
- GB934048A GB934048A GB1203460A GB1203460A GB934048A GB 934048 A GB934048 A GB 934048A GB 1203460 A GB1203460 A GB 1203460A GB 1203460 A GB1203460 A GB 1203460A GB 934048 A GB934048 A GB 934048A
- Authority
- GB
- United Kingdom
- Prior art keywords
- foil
- stretching
- clamping members
- guide rails
- longitudinal
- 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
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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
- B29C55/165—Apparatus therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
<PICT:0934048/IV(a)/1> Apparatus for simultaneously stretching heated plastic foil both longitudinally and transversely comprises longitudinal stretching means and a plurality of individual, unconnected clamping members all of which are movable independently of adjacent clamping members which provide the transverse stretching, the construction being such that the transverse stretching can be varied according to the longitudinal stretch to be applied to the foil. As shown, clamping members 8 are adapted to engage with and grip each longitudinal edge of the foil, the clamping members on each edge being engageable with and movable along guide rails 7 disposed on each side of the foil, by means of freely rotatable rollers 9, the engagement of the clamping members with the guide rail being arranged to apply the transverse stretching, the guide rails being mounted so that their position relative to the foil can be varied according to the longitudinal stretching to be applied to the foil. As shown, each guide rail may comprise two or more sections pivotally connected together so as to be displaceable toward and away from the foil relative to the other section or sections, and the guide rails may be carried by shoes 3 mounted on guides 2 adjustable transversely to the foil by lead screws 4.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES62530A DE1195475B (en) | 1959-04-10 | 1959-04-10 | Method and device for stretching plastic films |
Publications (1)
Publication Number | Publication Date |
---|---|
GB934048A true GB934048A (en) | 1963-08-14 |
Family
ID=7495680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1203460A Expired GB934048A (en) | 1959-04-10 | 1960-04-05 | Improvements in or relating to the stretching of plastic foils |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE589584A (en) |
CH (1) | CH382431A (en) |
DE (1) | DE1195475B (en) |
GB (1) | GB934048A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1147876A1 (en) * | 2000-04-12 | 2001-10-24 | Flexafilms S.p.A. | Apparatus and method for transverse stretching of a strip of film in plastic material |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1258591B (en) * | 1961-09-16 | 1968-01-11 | Kalle Ag | Method and device for simultaneous longitudinal and transverse stretching of thermoplastic plastic film webs |
DE1629384C2 (en) * | 1966-11-11 | 1972-03-09 | Detag | Device for tensioning moving webs, in particular plastic film webs |
FR2147876B1 (en) * | 1971-08-05 | 1974-03-29 | Cellophane Sa |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE470908A (en) * | 1941-12-22 | |||
CH290384A (en) * | 1950-06-03 | 1953-04-30 | Cellulose Sidac Societe Anonym | Process for the production of a continuous film of organic plastic material by extrusion and apparatus for carrying out the process. |
BE522077A (en) * | 1952-08-12 |
-
0
- BE BE589584D patent/BE589584A/xx unknown
-
1959
- 1959-04-10 DE DES62530A patent/DE1195475B/en active Pending
-
1960
- 1960-03-28 CH CH344860A patent/CH382431A/en unknown
- 1960-04-05 GB GB1203460A patent/GB934048A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1147876A1 (en) * | 2000-04-12 | 2001-10-24 | Flexafilms S.p.A. | Apparatus and method for transverse stretching of a strip of film in plastic material |
Also Published As
Publication number | Publication date |
---|---|
DE1195475B (en) | 1965-06-24 |
CH382431A (en) | 1964-09-30 |
BE589584A (en) |
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