EP3067300B1 - Appareil d'etalement et de guidage et de centrage d'un materiau en forme de ruban - Google Patents
Appareil d'etalement et de guidage et de centrage d'un materiau en forme de ruban Download PDFInfo
- Publication number
- EP3067300B1 EP3067300B1 EP16159548.3A EP16159548A EP3067300B1 EP 3067300 B1 EP3067300 B1 EP 3067300B1 EP 16159548 A EP16159548 A EP 16159548A EP 3067300 B1 EP3067300 B1 EP 3067300B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- elastic strings
- block
- connection block
- spreading roll
- 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.)
- Active
Links
- 230000007480 spreading Effects 0.000 title claims description 29
- 239000000463 material Substances 0.000 title claims description 21
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
- B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
- B65H23/0251—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis
- B65H23/0255—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis with axially stretchable elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/40—Toothed gearings
- B65H2403/43—Bevel gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/12—Rollers with at least an active member on periphery
- B65H2404/123—Rollers with at least an active member on periphery moving in parallel to roller axis
- B65H2404/1231—Arrangement of axially movable active elements, i.e. movable in parallel to roller axis
Definitions
- the present invention relates to the technical field of accessories for industrial machines, in particular it relates to the technical field of apparatuses for managing and distributing ribbon-shaped material.
- ribbon-shaped materials such as, for example, fabric, paper, films, woven materials, leather etc.
- unwinding and winding so as to make it possible to process and use them.
- the ribbon-shaped material must be unwound and rewound remaining as spread and as centered on the guiding rolls as possible. This prevents the ribbon-shaped material from being subject to creasing which could damage it or hinder the next treatment and the next processing, and prevents the outer edge of said ribbon-shaped material from passing beyond the end of the roll themselves, thus compromising the correct winding and rewinding operations and causing damage to the ribbon-shaped material itself.
- Italian patent IT1314888 describes a system for spreading ribbon-shaped materials by means of a so-called widening bar.
- the invention consists of a return cylinder of ribbon-shaped material which comprises a shaft and a plurality of discoid elements associated with said shaft, each of which is free to rotate about their axis, which is slightly inclined with respect to the axis of said shaft.
- Said discoid elements are divided into two groups, each of which extends for approximately half of the cylinder, has equal and opposite inclinations and diverge with respect to the median point of said shaft.
- the elastic strings are fixed to each of the ends by appropriate fastening and orientation means.
- Said fixing and orientation means generally comprise an adjuster device adapted to accommodate and fasten the ends of said elastic strings, said adjuster device being associated with the end of said roll and coaxial thereto when it is in neutral position.
- Said adjuster device is free to pivot with respect to said spreading roll, i.e. by inclining its axis with respect to the roll axis.
- said adjuster device is generally either provided or associated with a user interface comprising a display on which the degree of inclination imparted to said adjuster device is shown, together with other information, e.g. related to the resulting tension of the ribbon-shaped material which runs on the roll.
- the rolls of the prior art comprise fixing and orientation means provided with user interfaces which have a single orientation direction and thus require to install the roll with one only orientation, so that said user interface can be read by the operator.
- This limitation may be particularly annoying in the cases in which the apparatus for winding and unwinding the ribbon-shaped material is located in a small environment and the space available for inserting the spreading roll does not allow to install it with the required orientation in order to keep the user interface oriented correctly.
- the elastic strings of the rolls of the prior art are mutually distanced apart so as to display a given distance from one another. This distance may be detrimental because the space between two adjacent elastic strings may promote the onset of creases in the ribbon which runs on the roll, with evident mitigation of the spreading effect of the roll itself.
- the present invention comprises a spreading roll 10 for ribbon-shaped materials, said spreading roll comprising in turn:
- said elastic strings 13 comprise a body having a substantially "T"-shaped section with an extended flat part, respectively not very thick on one side, and a grooved coupling on the other side, said grooved coupling comprising an elongated body, which departs from said flat part for a given length with a first thickness and terminates with a second thickness which is greater than the first thickness.
- said cylinder 11 comprises, on its surface, a plurality of channels 14 shaped so as to be engaged with the grooved coupling of said elastic strings 13, and thus allow said elastic strings 13 to freely run on the surface of said cylinder 11.
- said fixing and orientation means of said elastic strings 11 comprise at least one adjuster device 15 comprising, in turn:
- Said adjustment pin of said bevel gear pair 25 is adapted to be connected to an analog position indicator 29, e.g. of the Clayton type.
- Said analog position indicator 29 is fixed to said adjustment pin of said bevel gear pair 25 and provides an indication of the inclination which, by action on said bevel pair, is transmitted to said ring nut 16 so as to cause a corresponding deformation of said elastic strings 13, which ultimately results in a modulation of the tension of the ribbon-shaped material which runs on the roll.
- said analogue position indicator 29 is advantageously provided with a knurled ring nut on the outer edge, so as to promote the management by the operator.
- the adjuster device 15 of the spreading roll according to the present invention is installed on both ends of the spreading roll and allows to adapt the spreading roll to many different operative situations in which the installation environment is small and limited. Indeed, the adjuster device 15 of the spreading roll according to the present invention allows to install the user interface so that it is always oriented correctly and thus so as to facilitate the operator's work.
- the roll is firstly set according to the hosting winding apparatus and according to the winding angle of the ribbon-shaped material being processed.
- the fastening flange 26 is tightened and said connecting rod 27 is fixed.
- said adjuster pin 25 possibly associated with an analog position indicator 29
- the connection block is inclined with respect to the axis of said cylinder 11, said spreading roll thus inclining the axis of said connection block with respect to the roll axis.
- the bevel gear pair 22, 23 is operated by translating said sleeve 20, thus inclining the ring nut 16 constrained by means of said sleeve 18 and said connecting rod 27 to the fastening flange 26.
- connection block When said connection block is inclined by a given angle with respect to the stretching roll which hosts it, consequently some of said elastic strings 13 are more elongated and others are less elongated with respect to the neutral position in which said adjuster device is coaxial to said roll and all the elastic strings have substantially the same length.
- said plurality of channels 14 on the surface of said cylinder 11 are distanced so that the corresponding elastic strings 13 are arranged on the surface of said cylinder 11 without there being any space between the two adjacent strings. This allows to improve the spreading of the ribbon-shaped material by the roll according to the present invention because it prevents the onset of creases of the ribbon running on the roll, which creases are favored by the presence on the roll surface of gaps between adjacent elastic strings 13.
Landscapes
- Treatment Of Fiber Materials (AREA)
Claims (9)
- Rouleau d'étalement (10) pour un matériau en forme de ruban, comprenant :un cylindre (11) ;un arbre de support (12), adapté pour supporter ledit cylindre (11) et pour permettre la rotation dudit cylindre (11) sur son axe ;une pluralité de cordes élastiques (13), adaptées pour coopérer avec ledit cylindre (11) de manière à pouvoir courir librement sur la périphérie extérieure dudit cylindre (11) ;des moyens de fixation et d'orientation desdites cordes élastiques (13), lesdits moyens de fixation et d'orientation étant associés audit cylindre (11) et audit arbre de support (12), étant adaptés pour maintenir lesdites cordes élastiques (13) adjacentes les unes aux autres sur la surface dudit cylindre (11) et pour ajuster l'extension desdites cordes élastiques (13), lesdits moyens de fixation et d'orientation desdites cordes élastiques (13) comprenant au moins un dispositif d'ajustement (15), comprenant à son tour :un bloc de connexion, adapté pour venir en prise avec l'arbre dudit cylindre (11) et les extrémités desdites cordes élastiques (13) de manière intégrale ;un bloc d'ajustement de la tension desdites cordes élastiques (13) associé audit bloc de connexion, et caractérisé en ce qu'il comprend :une paire d'engrenages coniques (22, 23) adaptés pour ajuster l'inclinaison dudit bloc de connexion par rapport à l'axe dudit arbre de support (12) ;des moyens de fixation adaptés pour bloquer l'orientation mutuelle entre ledit bloc de connexion et ledit bloc d'ajustement.
- Rouleau d'étalement selon la revendication 1, caractérisé en ce que ledit bloc de connexion comprend :un écrou annulaire (16) muni de moyens pour fixer les extrémités desdites cordes élastiques (13) ;un manchon (18) associé audit écrou annulaire (16), un joint d'étanchéité (19), et un manchon (20) pour une connexion audit arbre de support (12).
- Rouleau d'étalement selon l'une quelconques des revendications précédentes, caractérisé en ce que ledit bloc d'ajustement de la tension desdites cordes élastiques (13) comprend :une boîte (21) munie de moyens de mise en prise avec ledit manchon (20), ladite boîte comprenant ladite paire d'engrenages coniques (22,23) et un couvercle (24) ;une broche d'ajustement (25) de ladite paire d'engrenages coniques (22, 23).
- Rouleau d'étalement selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits moyens de fixation adaptés pour bloquer l'orientation mutuelle entre ledit bloc de connexion et ledit bloc d'ajustement comprennent une bride de fixation (26) associée à une tige de connexion (27) adaptée pour venir en prise avec ledit manchon (18).
- Rouleau d'étalement selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un indicateur de position analogique (29) associé à ladite broche d'ajustement (25).
- Rouleau d'étalement selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdites cordes élastiques (13) comprennent un corps ayant une section sensiblement en forme de T avec une partie plate étendue, respectivement pas très épaisse d'un côté, et un raccord rainuré de l'autre côté, ledit raccord rainuré comprenant un corps allongé qui part de ladite partie plate sur une longueur donnée avec une première épaisseur et se termine par une seconde épaisseur qui est supérieure à la première épaisseur.
- Rouleau d'étalement selon la revendication précédente, caractérisé en ce que ledit cylindre (11) comprend, sur sa surface, une pluralité de canaux (14) mis en forme de manière à être mis en prise avec le raccord rainuré desdites cordes élastiques (13), et permettre ainsi auxdites cordes élastiques (13) de courir librement sur la surface dudit cylindre (11).
- Rouleau d'étalement selon la revendication précédente, caractérisé en ce que les canaux (14) de ladite pluralité de canaux (14) sont distants les uns des autres sur la surface dudit cylindre (11), de sorte que les cordes élastiques correspondantes (13) sont disposées sur la surface dudit cylindre (11) sans qu'il y ait un espace entre les deux cordes adjacentes.
- Dispositif d'ajustement (15) pour un rouleau d'étalement selon la revendication 1, comprenant :un bloc de connexion adapté pour venir en prise avec l'arbre dudit cylindre (11) et les extrémités desdites cordes élastiques (13) de manière intégrale ;un bloc d'ajustement de la tension desdites cordes élastiques (13) associé audit bloc de connexion et comprenant une paire d'engrenages coniques (22, 23) adaptés pour ajuster l'inclinaison dudit bloc de connexion par rapport à l'axe dudit arbre de support (12) ;des moyens de fixation adaptés pour bloquer l'orientation mutuelle entre ledit bloc connexion et ledit bloc d'ajustement.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITFI20150067 | 2015-03-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3067300A1 EP3067300A1 (fr) | 2016-09-14 |
EP3067300B1 true EP3067300B1 (fr) | 2017-11-15 |
Family
ID=53052949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16159548.3A Active EP3067300B1 (fr) | 2015-03-10 | 2016-03-10 | Appareil d'etalement et de guidage et de centrage d'un materiau en forme de ruban |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP3067300B1 (fr) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2715761A (en) * | 1953-10-28 | 1955-08-23 | Visking Corp | Apparatus for expanding materials |
US3344493A (en) * | 1965-02-19 | 1967-10-03 | Henry E Telgheider | Spreader roll |
IT1314888B1 (it) | 2000-12-18 | 2003-01-16 | Massimo Bassi | Barra allargante per spianare materiale nastriforme come tessuti odaltro, in forma di rullo composito |
-
2016
- 2016-03-10 EP EP16159548.3A patent/EP3067300B1/fr active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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EP3067300A1 (fr) | 2016-09-14 |
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