WO2016189454A1 - Dispositif pour le centrage et l'élargissement d'un tissu, sans contact mécanique - Google Patents

Dispositif pour le centrage et l'élargissement d'un tissu, sans contact mécanique Download PDF

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Publication number
WO2016189454A1
WO2016189454A1 PCT/IB2016/053021 IB2016053021W WO2016189454A1 WO 2016189454 A1 WO2016189454 A1 WO 2016189454A1 IB 2016053021 W IB2016053021 W IB 2016053021W WO 2016189454 A1 WO2016189454 A1 WO 2016189454A1
Authority
WO
WIPO (PCT)
Prior art keywords
fabric
slot
groove
towards
along
Prior art date
Application number
PCT/IB2016/053021
Other languages
English (en)
Inventor
Massimo Biancalani
Riccardo Ravagli
Original Assignee
Biancalani S.R.L.
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 Biancalani S.R.L. filed Critical Biancalani S.R.L.
Priority to EP16753460.1A priority Critical patent/EP3298188B1/fr
Priority to ES16753460T priority patent/ES2742517T3/es
Priority to BR112017026694-6A priority patent/BR112017026694B1/pt
Priority to CN201680035762.2A priority patent/CN107849772B/zh
Priority to KR1020177036440A priority patent/KR20180022675A/ko
Publication of WO2016189454A1 publication Critical patent/WO2016189454A1/fr

Links

Classifications

    • 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
    • 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
    • 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
    • B65H23/032—Controlling transverse register of web
    • B65H23/0324—Controlling transverse register of web by acting on lateral regions of the web
    • 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
    • D06C19/00—Breaking or softening of fabrics
    • 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
    • D06C7/00—Heating or cooling textile fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • B65H2406/1132—Multiple nozzles arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/174—Textile, fibre

Definitions

  • This invention relates to a device for transversely centring and widening a fabric in open-width form fed along a longitudinal direction and without mechanical contact.
  • mechanical devices which comprise helical widening rollers used to apply a widening action on the fabric.
  • These devices may also comprise centring systems, also mechanical, which are disjoined from the wideners and whose purpose is to compensate for misalignment and keep the fabric centred on the feed line by applying corrective movements to the fabric in response to displacements which the fabric may undergo as it moves forward.
  • the fabric also has to be subjected to thermal treatment - for example, drying or cooling - the above mentioned mechanical devices need to be integrated in other specific devices, creating working combinations which are complex in terms of plant engineering and which raise the overall cost of the production process.
  • FIG. 1 is a perspective assembly view of the device according to the invention represented in a schematic and partial form
  • FIG. 2 is a view of the device of Figure 1, cut along a horizontal plane in order to better illustrate some internal parts of it;
  • FIGS. 3a and 3b are perspective views, cut along a horizontal plane, of a variant embodiment of the invention of Figure 1 in two different operating conditions;
  • FIG. 4 is a perspective assembly view of a more complex embodiment of the invention of Figure 1 ;
  • FIG. 5 is a perspective horizontal cross section of the device of Figure 4.
  • FIGS. 6, 7a,7b, 8a, 8b are views of the device of Figure 4, with some parts cut away in order to better illustrate internal parts of it, according to specific operating states;
  • FIG. 9 illustrates a system for treating a knitted fabric comprising the device of the invention.
  • the numeral 1 in Figure 1 denotes a widening and centring device, without mechanical contact, for a portion 2 of fabric in open-width form fed along a longitudinal feed direction 3, preferably vertical.
  • the device 1 essentially comprises a horizontal structure 30, in the shape of a parallelepiped, having a rectangular through slot 23, which the portion 2 of fabric passes through as it moves continuously along the vertical, longitudinal direction 3 under a suitable feeding action applied to the portion 2 by respective feed means not illustrated.
  • the device 1 comprises two grooves 24 which are associated with the slot 23 and which are oriented in a horizontal direction 8, transversal to the portion 2 of fabric.
  • grooves 24 are located bilaterally to the portion 2 of fabric and the open sides of their contours are directed towards the opposite faces 2a and 2b of the portion 2.
  • the device 1 comprises two ducts 5 connected to the grooves 24 to supply the grooves 24 with a pressurized air flow 4.
  • the ducts 5 blow into the grooves 24 gaseous flows 4 of pressurized air which travel the grooves 24 from the centre towards the periphery of the portion 2 of fabric tangentially along the portion 2 itself in the transversal direction 8.
  • the structure 30 of the device 1 also comprises directing means for selectively directing into each groove 24 the gaseous flow 4 delivered by the respective supply duct 5.
  • the directing means comprise a small diverter plate 6 housed in the groove 24 facing the respective supply duct 5.
  • the portion 2 of fabric Since the flows 4 operate in opposition to each other, the portion 2 of fabric is subjected to a strong tangential pulling action which causes it to spread out in its transversal direction 8 and keeps it in that condition. If the opposite flows 4d and 4s were not identical, that is, such as to balance each other, the portion 2 of fabric would, in its entirety, be subjected to translation in the transversal direction 8, which would cause it to be displaced sideways, resulting in its misalignment relative to the middle of the slot 23.
  • the air which supplies the gaseous flow 4 thus operates on the fabric like a totally fluid widening and centring actuator without direct contact with rigid parts.
  • the air can advantageously be heated or cooled to be used as fabric drying or cooling means.
  • Such drying means might therefore be integrated or able to be integrated at a very low cost into the fluid actuator to meet other technological requirements related to fabric processing.
  • the supply flow rate might be made variable in order to adjust the intensity of the actions applied to the fabric.
  • FIGs 3a and 3b show a variant embodiment of the device of Figure 2, where the directing means include shutoff means 7 - preferably embodied in this specific case by swing flap valves - interposed between the fixed diverter plate 6 inside the grooves 24 and the end part of the supply ducts 5.
  • the directing means include shutoff means 7 - preferably embodied in this specific case by swing flap valves - interposed between the fixed diverter plate 6 inside the grooves 24 and the end part of the supply ducts 5.
  • FIG. 4 shows another version of the device according to the invention, denoted in this case by the numeral 9, which allows both widening and centring - if necessary with large displacements - of the portion 2 of fabric as it moves through the slot 23 continuously.
  • the portion 2 of fabric is considered as moving from the bottom up. This feature is totally exemplary and non-limiting, it being understood that the device 1 is perfectly reversible and can operate just as well with the fabric moving in the exact opposite direction.
  • Figure 4 also shows the air flows 4 which supply the device 9 and those which travel along the grooves 24 towards the outside in such a way as to act on the fabric.
  • the directing means comprise, in addition to the two small middle plates 6, four further small diverter plates 16 which are located at the sides of the slot 23 and which are designed to divert in a direction transversal to the portion 2 of fabric the air supplied into the device 9.
  • the directing means also comprise two spool valves 17 and 20 located half way along the slot 23 and driven by pairs of pneumatic mini cylinders 10 and 13, respectively.
  • the spool valves 17 and 20 can adopt three different positions, starting from the neutral middle position and allowing the air to be selectively diverted towards the right-hand end of the slot 23, that is, towards the right-hand side of the portion 2 of fabric, or towards the left-hand end.
  • the directing means also comprise two further spool valves 18 and 19 located at the right-hand end of the slot 23 and driven by pneumatic minicylinders 11 and 12; and two further spool valves 21 and 22 located at the left-hand end of the slot 23 and driven by pneumatic minicylinders 14 and 15.
  • the spool valves 18,19,21 and 22 can adopt two positions, open or closed, and allow or prevent air from being fed in against one or the other edge 2t of the portion 2 of fabric. This action makes it possible to implement pushing actuators acting on the edge 2t of the portion 2 and designed to push it, if necessary, in the transversal direction 8 and to locally reinforce the main action produced by the state of the middle spool valves 17 and 20. This is particularly useful (as will be better understood below) when the portion 2 of fabric is greatly displaced to one side or the other relative to the middle of the slot 23.
  • Figures 6 to 8b well clarify the technical concepts set out above.
  • Figure 7b shows the same condition but where the portion 2 of fabric undergoes a strong displacing action towards the left.
  • the device according to the invention fully achieves the aims of widening and centring a portion 2 of fabric on the feed line and, moreover, offers further major advantages.
  • the fabric is practically not stretched lengthways at all but the portion 2 of fabric is subjected to a pulling action only in the transversal direction 8, which means that a wide variety of fabrics, including knitted fabrics, can advantageously be treated without any limitations.
  • Additional thermal treatments of the fabric can be easily and economically integrated in the device by heating and cooling the very same air which is used for the primary purposes of widening the centring the fabric.
  • the totally reversible operation of the device on the feed line is decidedly more advantageous than traditional mechanical devices which operate in one direction only.
  • the spool and/or flap valves used to control the transversal position of the fabric can advantageously be controlled automatically by a control system driven by electronic sensors which detect the position of the two edges of the fabric.
  • Figure 9 illustrates a system for treating a knitted fabric M, comprising two or more vibratory tanks (three tanks 90,91,92 in the example illustrated) placed one after the other.
  • the fabric M is fed/picked up from each tank by means of widening/centring devices 93 having the features set out above and positioned at the infeed of the first tank 90, at the outfeed of the last tank 92 and between each pair of successive tanks (90,91 and 91,92 in the example).
  • further widening/centring devices 94 can be located substantially in the middle of one or more tanks 90,91 to pick up the fabric from the tank and release it into the same tank.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

L'invention concerne un dispositif pour le centrage et l'élargissement d'une partie (2) d'un tissu à largeur ouverte alimenté le long d'une direction d'alimentation longitudinale (3), ledit dispositif comprenant une structure (30) ayant une fente (23) à travers laquelle la partie (2) de tissu passe au fur et à mesure qu'elle se déplace en continu le long de la direction longitudinale (3), et au moins une rainure (24) associée à la fente (23), laquelle rainure est orientée dans une direction (8) transversale à la partie (2) et dirige vers la partie (2) un côté ouvert de son contour, au moins un flux gazeux (4 ; 4d, 4s) tangentiel à la partie (2) dans la direction transversale (8) se déplace le long de la rainure, et applique sur la partie (2) une action correspondante qui l'amène à être élargie et/ou centrée par rapport à la fente (23).
PCT/IB2016/053021 2015-05-22 2016-05-23 Dispositif pour le centrage et l'élargissement d'un tissu, sans contact mécanique WO2016189454A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16753460.1A EP3298188B1 (fr) 2015-05-22 2016-05-23 Dispositif de centrage et élargissement d'une bande textile en largeur
ES16753460T ES2742517T3 (es) 2015-05-22 2016-05-23 Dispositivo para centrar y ensanchar un tejido en forma de anchura abierta
BR112017026694-6A BR112017026694B1 (pt) 2015-05-22 2016-05-23 Dispositivo para centralizar e expandir um tecido, sem contato mecânico
CN201680035762.2A CN107849772B (zh) 2015-05-22 2016-05-23 用于定中和加宽织物而无需机械接触的设备
KR1020177036440A KR20180022675A (ko) 2015-05-22 2016-05-23 기계적 접촉 없이 직물의 중심을 잡고 폭을 확장하기 위한 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB2015A000804A ITUB20150804A1 (it) 2015-05-22 2015-05-22 Dispositivo per il centraggio e l'allargatura, senza contatto meccanico, di un tessuto
IT102015000017221 2015-05-22

Publications (1)

Publication Number Publication Date
WO2016189454A1 true WO2016189454A1 (fr) 2016-12-01

Family

ID=53794431

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/053021 WO2016189454A1 (fr) 2015-05-22 2016-05-23 Dispositif pour le centrage et l'élargissement d'un tissu, sans contact mécanique

Country Status (7)

Country Link
EP (1) EP3298188B1 (fr)
KR (1) KR20180022675A (fr)
CN (1) CN107849772B (fr)
BR (1) BR112017026694B1 (fr)
ES (1) ES2742517T3 (fr)
IT (1) ITUB20150804A1 (fr)
WO (1) WO2016189454A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410077A (zh) * 2020-04-09 2020-07-14 吴秋根 一种气流式理布装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632030A (en) * 1967-01-25 1972-01-04 Samcoe Holding Corp Pneumatic fabric-guiding system
US4322026A (en) * 1980-04-14 1982-03-30 Young Engineering, Inc. Method and apparatus for controlling a moving web
US4422308A (en) * 1980-07-03 1983-12-27 Bruckner Apparatebau Gmbh Apparatus for spreading a moving web of textile material
US4466149A (en) * 1981-09-22 1984-08-21 Bruckner Apparatebau Gmbh Method and apparatus for rinsing textile material
DE19643524A1 (de) * 1996-10-22 1998-04-23 Cetex Chemnitzer Textilmaschin Verfahren und Vorrichtung zum Führen einer Warenbahn, insbesondere Textilbahn
EP1050500A2 (fr) * 1999-04-28 2000-11-08 Tex Electronic S.A. Dispositif pour le centrage et l'élargissement d'une bande de tissu

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1246670B (it) * 1991-01-31 1994-11-24 Lambda Srl Macchina da maglieria per la produzione di collants (panty-hoses).

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632030A (en) * 1967-01-25 1972-01-04 Samcoe Holding Corp Pneumatic fabric-guiding system
US4322026A (en) * 1980-04-14 1982-03-30 Young Engineering, Inc. Method and apparatus for controlling a moving web
US4422308A (en) * 1980-07-03 1983-12-27 Bruckner Apparatebau Gmbh Apparatus for spreading a moving web of textile material
US4466149A (en) * 1981-09-22 1984-08-21 Bruckner Apparatebau Gmbh Method and apparatus for rinsing textile material
DE19643524A1 (de) * 1996-10-22 1998-04-23 Cetex Chemnitzer Textilmaschin Verfahren und Vorrichtung zum Führen einer Warenbahn, insbesondere Textilbahn
EP1050500A2 (fr) * 1999-04-28 2000-11-08 Tex Electronic S.A. Dispositif pour le centrage et l'élargissement d'une bande de tissu

Also Published As

Publication number Publication date
KR20180022675A (ko) 2018-03-06
ES2742517T3 (es) 2020-02-14
BR112017026694A2 (pt) 2020-08-11
CN107849772B (zh) 2020-07-03
EP3298188B1 (fr) 2019-07-10
EP3298188A1 (fr) 2018-03-28
ITUB20150804A1 (it) 2016-11-22
BR112017026694B1 (pt) 2022-04-19
CN107849772A (zh) 2018-03-27

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