EP1258555A1 - Dispositif élargisseur des produits en bande - Google Patents

Dispositif élargisseur des produits en bande Download PDF

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Publication number
EP1258555A1
EP1258555A1 EP01830293A EP01830293A EP1258555A1 EP 1258555 A1 EP1258555 A1 EP 1258555A1 EP 01830293 A EP01830293 A EP 01830293A EP 01830293 A EP01830293 A EP 01830293A EP 1258555 A1 EP1258555 A1 EP 1258555A1
Authority
EP
European Patent Office
Prior art keywords
product
pulleys
stretching
belt
edges
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Withdrawn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
EP01830293A
Other languages
German (de)
English (en)
Inventor
Paolo Moscatelli
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.)
Rifinizione S Giovanni SpA
Original Assignee
Rifinizione S Giovanni SpA
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 Rifinizione S Giovanni SpA filed Critical Rifinizione S Giovanni SpA
Publication of EP1258555A1 publication Critical patent/EP1258555A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/06—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus
    • D06C3/062—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus acting on the selvedges of the material only
    • D06C3/065—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus acting on the selvedges of the material only with uncurling of the edges of the fabric

Definitions

  • the present invention relates to an apparatus for stretching web products, such as fabrics and the like, in the process of formation.
  • the apparatuses currently used to maintain the product in stretched attitude require the use of elements consisting essentially of single rollers or pairs of cylindrical or conical rollers, either idle or motor-driven, which act independently upon the two long sides of the material in the process of formation.
  • elements consisting essentially of single rollers or pairs of cylindrical or conical rollers, either idle or motor-driven, which act independently upon the two long sides of the material in the process of formation.
  • efficiency of the known systems is not always sufficient to keep the product in a perfectly stretched condition for the desired time.
  • the main object of the present invention is to overcome the said drawback. This result has been achieved, according to the invention, by providing an apparatus having the characteristics disclosed in the claim 1. Further characteristics being set forth in the dependent claims.
  • the present invention allows the product in the process of formation to be set in a stretched condition by acting on both its longitudinal edges in a perfectly balanced way. This makes it possible to reach the most correct stretching of the product and perform the treatments provided downstream, whatever their nature, in yet a more efficient way. Besides, an apparatus according to the invention is simple to make, cost-effective and reliable even after a prolonged service life, while requiring only one drive motor.
  • an apparatus comprises a belt wound up, to form an "eight", over two pulleys (2) so as to exhibit two crossed lengths above the product (3) which is moved forward, as indicated by the arrow "F", relative to the pulleys (2) and belt (1).
  • a belt wound up, to form an "eight", over two pulleys (2) so as to exhibit two crossed lengths above the product (3) which is moved forward, as indicated by the arrow "F", relative to the pulleys (2) and belt (1).
  • the movement of the product (3) is ensured by traditional driving systems.
  • the element (4) shown in the figures of the attached drawings represents a bearing body on which the product (3) is made to slide, said body being supported by a frame (40) able to be associated to a fixed structure (S).
  • Said frame (40) can be mounted on wheels (not shown in the drawings) to make up a distinct element, independent from the structure (S).
  • said structure (S) has a base resting with a plurality of legs (GS) onto the floor.
  • This structure (S) makes it possible to guide and wind up the product (3) to form a coil (B) with the axis (AB) thereof being driven by an electric motor (MB) in cooperation with two idle rollers (400) provided on the side of the frame (40) facing the fixed structure (S) and developed orthogonally to the feed direction (F) the product (3).
  • the rotation of the axis (AB) operated by the motor (MB) causes the product (3) to advance in the direction of arrow (F).
  • said frame (40) is able to be associated to a fixed part of any finish machine, particularly in correspondence of the input and/or output sections of the machine. In such case, the movement of the product to be treated is ensured by the same finish machine.
  • One of said pulleys (2) is associated to a drive motor (66) to allow the rotation thereof about the respective axis, so that the belt (1) results subjected to a corresponding winding motion over the pulleys (2).
  • the said motor (66) is suitably mounted on one arm (41) of the said frame (40) so as to oscillate about an axis hinge-connected (44) thereto and allowing it to be disposed, along with the respective pulley (2), in the most suitable position.
  • the pulleys (2) are on opposite sides with respect to the product (3) being fed and, therefore, the belt (1) extends over the whole height of the latter.
  • the pulleys (2) are disposed, with respect to the plane of the product (3), in such a position that two branches or lengths (10) of the belt (1) act upon the surface of the same product.
  • the belt (1) exhibits, at every instant, two inner branches (10) and two outer branches (11) and each of the two inner branches (10) has a region in contact with the surface of the product (3) in correspondence of the longitudinal edges (30).
  • inner branches and outer branches refer to the branches of the belt (1) which are at any instant closer to and, respectively, farther away from the surface of the product (3), that is, the branches instantly active and, respectively, inactive.
  • the said inner branches (10) slip simultaneously in centrifugal direction (G) onto the longitudinal edges (30) of the product (3), which edges are in general curled downstream of the apparatus, as shown in the drawings. Because of the simultaneous advancement of the product (3) relative to said "inner" branches of the belt (1), the same product results perfectly stretched.
  • the position of the pulleys (2) on the respective supports can be adjusted by the operator, as indicated by the double arrow "H" in Fig. 3, who can set at will the angle of incidence of said active portions (10) of the belt (1) on the product (3).
  • idle wheels (5) are correspondingly associated to the pulleys (2), each wheel having its axis parallel to the respective pulley and able to be moved from and towards the product (3), as indicated by the double arrow "E".
  • This makes it possible to displace the product (3) relative to the axis (b-b) of the station of destination without, for this reason, having to correspondingly displace the belt/pulleys assembly.
  • it is possible, by means of pulleys (5), to move the crossing point of belt (1) so that the projection of such point onto the feeding product (3) will fall onto the axis of longitudinal symmetry of the latter.
  • the stretching effect operated upon the edges of the product (3) by the present apparatus can be made more intense by providing, beside each of said pulleys (2), a further pair of pulleys (6, 7) having a corresponding belt (8) wound thereon.
  • the said additional pulleys (6, 7) are positioned, on the same plate (42) of the arm (41) which supports the main pulleys (2), on the side opposite to the product (3), so that the edges (30) to be stretched of the latter will result interposed between the main belt (1) and the two additional belts (8).
  • the two edges (30) of the product are subjected to the action of both belts (1, 8) acting from opposite sides.
  • the additional belts (8) receive the motion directly from the main belt (1), as described in more details here below.
  • the additional pulleys (6, 7) may be mounted on supports (71) which allow them to be moved relative to the product (3) being fed, as schematically illustrated in Fig. 6, in order to exert a kind of brushing of the edges of the product simultaneously to the stretching thereof.
  • the support (71) for the additional pulleys (6, 7) is hinged with vertical axis (72) to the corresponding plate (42) of the frame (40), said axis (72) being coincident with that of the additional pulley (6) which is farther away from the product (3).
  • Each of the additional belts (8) is associated to the main belt (1) so as to be driven into motion only by the motor (66).
  • this is achieved by means of an idle roller (9) with axis (r-r), able to be positioned at a preset distance from the corresponding edge (30) of the product (3) and acting upon the outer side of the main belt (1), so as to press the latter against the additional belt (8).
  • the pressure exerted by the roller (9) onto the main belt (1) causes the latter to come in contact with the additional belt (8) which, therefore, results driven by friction and wound over the respective pulleys (6, 7) for cooperating with the main belt (1) in stretching the edges (30) of the product (3).
  • the arrows (L) and (K) of Fig. 10 show the directions of motion of the main belt (1) and, respectively, of the additional belt (8).
  • the small roller (9) is mounted within a housing defined by a body (90) fixed, by means of two rods (91) parallel to each other, to a skid (92) sliding onto a straight guide (70) parallel to the support (71) of the additional pulleys (6, 7).
  • the said skid (92) being able to be disposed in fixed position on the guide (70) by means of tightening knob (93).
  • the said rods (91) parallel to the skid (92) make up a fork in which both the main (1) and additional (8) belts slide.
  • the said fork acts as an end-of-stroke element for the product (3) in case the latter is subjected to undesired side shifts.
  • Figs. 8-11 of the attached drawings show a single group (6, 7, 8) with relevant support (71), skid (92) and small roller (90), it is understood that the whole is present on both sides of the frame (40) to act on both the longitudinal edges (30) of the product.
EP01830293A 2000-05-10 2001-05-17 Dispositif élargisseur des produits en bande Withdrawn EP1258555A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000FI000108A IT1314760B1 (it) 2000-05-10 2000-05-10 Apparecchiatura per distendere manufatti nastriformi
ITFI20000108 2001-05-17

Publications (1)

Publication Number Publication Date
EP1258555A1 true EP1258555A1 (fr) 2002-11-20

Family

ID=11441869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01830293A Withdrawn EP1258555A1 (fr) 2000-05-10 2001-05-17 Dispositif élargisseur des produits en bande

Country Status (2)

Country Link
EP (1) EP1258555A1 (fr)
IT (1) IT1314760B1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005102885A1 (fr) * 2004-03-23 2005-11-03 3M Innovative Properties Company Appareil et procede d'inflechissement d'une bande
US7753669B2 (en) 2004-03-23 2010-07-13 3M Innovative Properties Company System for flexing a web
US7998534B2 (en) 2006-09-28 2011-08-16 3M Innovative Properties Company System and method for controlling curl in multi-layer webs
KR101204814B1 (ko) 2011-08-12 2012-11-26 최규수 원단 말림 펼침장치
US8647556B2 (en) 2006-09-28 2014-02-11 3M Innovative Properties Company System and method for controlling curl in multi-layer webs
US8871298B2 (en) 2006-02-08 2014-10-28 3M Innovative Properties Company Method for manufacturing on a film substrate at a temperature above its glass transition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353237A (en) * 1965-07-29 1967-11-21 Riggs & Lombard Inc Fabric shearing machine having web smoothing means
US3867744A (en) * 1972-08-21 1975-02-25 Isamu Tsuchida Apparatus for unfolding, spreading and guiding a travelling knitted fabric

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353237A (en) * 1965-07-29 1967-11-21 Riggs & Lombard Inc Fabric shearing machine having web smoothing means
US3867744A (en) * 1972-08-21 1975-02-25 Isamu Tsuchida Apparatus for unfolding, spreading and guiding a travelling knitted fabric

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005102885A1 (fr) * 2004-03-23 2005-11-03 3M Innovative Properties Company Appareil et procede d'inflechissement d'une bande
CN100586824C (zh) * 2004-03-23 2010-02-03 3M创新有限公司 用于在幅材的横向上赋予永久性应变的系统
US7753669B2 (en) 2004-03-23 2010-07-13 3M Innovative Properties Company System for flexing a web
US8871298B2 (en) 2006-02-08 2014-10-28 3M Innovative Properties Company Method for manufacturing on a film substrate at a temperature above its glass transition
US7998534B2 (en) 2006-09-28 2011-08-16 3M Innovative Properties Company System and method for controlling curl in multi-layer webs
US8647556B2 (en) 2006-09-28 2014-02-11 3M Innovative Properties Company System and method for controlling curl in multi-layer webs
US10384231B2 (en) 2006-09-28 2019-08-20 3M Innovative Properties Company System and method for controlling curl in multi-layer webs
KR101204814B1 (ko) 2011-08-12 2012-11-26 최규수 원단 말림 펼침장치

Also Published As

Publication number Publication date
IT1314760B1 (it) 2003-01-03
ITFI20000108A0 (it) 2000-05-10
ITFI20000108A1 (it) 2001-11-10

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