Processing

Please wait...

Settings

Settings

Goto Application

1. WO2014155157 - MACHINE FOR MANUFACTURING PRE-STRETCHED EXTENDABLE FILM ROLLS

Publication Number WO/2014/155157
Publication Date 02.10.2014
International Application No. PCT/IB2013/052492
International Filing Date 28.03.2013
IPC
B29C 55/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02of plates or sheets
04uniaxial, e.g. oblique
06parallel with the direction of feed
B65H 23/195 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
23Registering, tensioning, smoothing, or guiding webs
04longitudinally
18by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
195in winding mechanisms or in connection with winding operations
CPC
B29C 55/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
B29C 55/06
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02of plates or sheets
04uniaxial, e.g. oblique
06parallel with the direction of feed
B29L 2007/008
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
2007Flat articles, e.g. films or sheets
008Wide strips, e.g. films, webs
B65H 23/195
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
23Registering, tensioning, smoothing or guiding webs
04longitudinally
18by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
195in winding mechanisms or in connection with winding operations
B65H 23/1955
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
23Registering, tensioning, smoothing or guiding webs
04longitudinally
18by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
195in winding mechanisms or in connection with winding operations
1955and controlling web tension
B65H 2301/5124
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
2301Handling processes for sheets or webs
50Auxiliary process performed during handling process
51Modifying a characteristic of handled material
512Changing form of handled material
5124Stretching; Tentering
Applicants
  • NO.EL. S.R.L. [IT]/[IT]
Inventors
  • PELLENGO GATTI, Roberto
Agents
  • SINISCALCO, Fabio
Priority Data
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) MACHINE FOR MANUFACTURING PRE-STRETCHED EXTENDABLE FILM ROLLS
(FR) MACHINE POUR LA FABRICATION DE ROULEAUX DE FILM EXTENSIBLE PRÉ-ÉTIRÉ
Abstract
(EN)
A machine for manufacturing pre-stretched extendable film rolls provides for a pre- stretch unit (10) of the film (F) and a wrapping unit (100) of the film in roll provided with a series of rolls around which the advancing film is partially wrapped; the pre- stretch unit (10) provides for, in sequence, at least a first pre-stretching roll (12), a pre-stretching auxiliary roll (13) acting against the first roll (12) with the interposition of the film, and a second pre-stretching roll (14) having a speed greater than the speed of the first roll (12) to carry out the pre-stretching of the film; the wrapping unit provides for a wrapping roll (104) for wrapping the pre-stretched film; the pre-stretch unit (10) further provides for a detensioning roll (17) arranged downstream said second pre-stretching roll (14) and having a speed less than said second pre-stretching roll (14) and greater than said wrapping roll (104), so as to obtain a first detensioning of the film after the pre-stretching operation and a second detensioning of the film before the wrapping operation. A high quality pre-stretched film is obtained by this machine.
(FR)
La présente invention concerne une machine destinée à la fabrication de rouleaux de film extensible pré-étiré qui utilise une unité de pré-étirage (10) du film (F) et une unité d'enroulement (100) du film en rouleaux comprenant une série de rouleaux autour desquels s'enroule en partie le film qui avance ; l'unité de pré-étirage (10) utilise, dans l'ordre, au moins un premier rouleau de pré-étirage (12), un rouleau de pré-étirage auxiliaire (13) agissant contre le premier rouleau (12), le film étant intercalé entre les deux rouleaux, et un second rouleau de pré-étirage (14) ayant une vitesse supérieure à la vitesse du premier rouleau (12) afin de mettre en œuvre le pré-étirage du film ; l'unité d'enroulement utilise un rouleau d'enroulement (104) permettant d'enrouler le film pré-étiré ; l'unité de pré-étirage (10) utilise en outre un rouleau de détensionnement (17) disposé en aval dudit second rouleau de pré-étirage (14) et ayant une vitesse inférieure à celle dudit second rouleau de pré-étirage (14) et supérieure à celle dudit rouleau d'enroulement (104), de sorte à obtenir un premier détensionnement du film après l'étape de pré-étirage et un second détensionnement du film avant l'étape d'enroulement. Cette machine permet ainsi d'obtenir un film pré-étiré de qualité élevée.
Latest bibliographic data on file with the International Bureau