EP0124932A2 - Dispositif d'étirage et de centrage de tissus - Google Patents

Dispositif d'étirage et de centrage de tissus Download PDF

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Publication number
EP0124932A2
EP0124932A2 EP84200549A EP84200549A EP0124932A2 EP 0124932 A2 EP0124932 A2 EP 0124932A2 EP 84200549 A EP84200549 A EP 84200549A EP 84200549 A EP84200549 A EP 84200549A EP 0124932 A2 EP0124932 A2 EP 0124932A2
Authority
EP
European Patent Office
Prior art keywords
fabric
rollers
extension
rotation
tracts
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Withdrawn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
EP84200549A
Other languages
German (de)
English (en)
Other versions
EP0124932A3 (fr
Inventor
Mario Bianco
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0124932A2 publication Critical patent/EP0124932A2/fr
Publication of EP0124932A3 publication Critical patent/EP0124932A3/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Withdrawn legal-status Critical Current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
    • 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
    • B65H23/0256—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis with opposed helicoidal windings

Definitions

  • the invention makes reference to an extension and centering device of the rope fabric.
  • extension and centering devices of fabric composed of: one extension device, including a carry ing structure-at least two extension rollers with double helical rifling, driven in rotation in opposite sense of the advancing of the fabric, and having their axes parallel and means to move angularily this structure in order to modify the angle of inclination of the level containing the axes of the extension rollers; a centering device put at a pre-established distance after the extension device and including a carrying structure, at least two centering rollers fitted with parallel axes to a level which is sub stancially parallel to the axe of advancement of the fabric; such structure is hinged at its extremity, around perpendicolar axes of the level, containing the axes of the centering rollers on two mouvable slides alongside two axes contained in a level parallel to the above mentioned level and convergent towards the axe of advancement of the fabric after the centering rollers; furthermore there are foreseen sensor means sensible to the change of direction after the above mentioned roller
  • the device will therefore be simplyfied structurally and economically and allows to reach the same advantages as the device above mentioned.
  • an extension and centering device for rope fabric composed of: an extension device, including a carrying structure at least two extension rollers with double helical rifling, driven in rotation in opposite sense of the advan cing of the fabric and having their axes parallel, and sen sor means, sensibel of lateral change of dorection of the fabric, fitted after the above mentioned rollers, characte rized through the fact that each roller is built of two tracts, of substancial the same lenght which are engaged between them idle in corrispondance of the ends in contact, whereas the other ends are put solid in rotation at the tract next to the other roller, driven by respective motors, having forseen piloted actuator means of above mentioned sensor means to change the speed of one of the two motors, causing the variation of rotation speed of the two tracts of rollers to which they are connected, according to the sense of lateral constitutional of the fabric.
  • each roller 13 and 16 is constituted by two distinguished tracts of rollers 16', 16" and 13', 13" connected in the middle of the complete roller.
  • one of the two tracts 16' and 13' presents a tang 17 protruding on its free extre mity, on which is threaded the tubolar extremity 18 of the other tract 16" and 13" of roller (on the right in fig.2).
  • Two motors 20 fixed to the supporting structures 14 drive the rotation of each pair 13', 13" and 16', 16" the tracts of extension rollers 13 and 16 by means of respecti ve transmissions with reduction gear placed inside of the supporting structures 14 (non illustrated).
  • the angolar pulp of the supporting structure 14 is normally actived by mouving a hand wheel 21 which drives the rotation of a conical gear 22 connected to a second conical gear 23, fixed on an shaft 24, hinged to the two posts 12, in parallel position to the axes of the extension rollers 13 and 16.
  • a photoelectric sensor of the position of the fabric selvedge 11 connected electrically to a group 28 which elaborates the signals coming from the sensor and sends as signals to command the motors 20.
  • the sensor device could be, instead of the illustrated photocell, of any other type, as for instance mechanical or pneumatic.
  • the operation of the extension and centering device of rope fabrics 11 as above described is the following.
  • the fabric 11, after having been put into rope from for the operations of finishing, as for instance dyeing, bleaching and washing is being advanced through the extension devi ce 10 by a traction sustcm (not illustrated and situated afeter the mentioned cJpvices) which brings it ahead in the direction indicated by the arrow A of Fig.2.
  • the advancing level of the fabric substancially coincides with the vertical level.
  • the fabric passes with attrition through the extension rollers 13 and 16 which are driven in rotation in the opposite sense of the direction of the advancement of the fabric.
  • the extension rollers 13 and 16 thanks also to the double helical rifling, giving back to the fabric 11 its open form.
  • the attrition with which the fabric passes in contact with the extension rollers 13 and 16 may be changed by varying the angle of inclination between the level of the axes of the extension rollers and the vertical level.
  • the variation of such angle is done by turning the han dle 21 which drives, by means of conical wheels 22 and 23, the rotation of the toothed wheels 25 and the sectors 26 solied to the supporting structure 14 holding the extension rollers 13 and 16.
  • the sensor 27 feels a respiration of the fabric 11 in transversal sense to the di rection of advancement along the arrow A
  • the group 28 im parts a variation (increase) of speed to one of the motors 20, which determinates a consequent speed variation of ro tation (increased to the pair of tracts of the rollers 16 and 13 to which it is connected.
  • the extension rollers exercise an antagonist on the fabric 11 with the tendency to bring it back in the desired position of advancement along the arrow A.
  • the sensor is signaling it to the group 28, which opportunely realized sends an order to mo tor 20 of the right hand side (in fig.2) to increase his speed, with consequent increase of speed of rotation of tracts 13" and 16" of rollers 13 and 16 connected to them, causing the before said perennial of fabric 11 to the right and therefore, in optimate position; when this position is once again reached, the sensor 27 will order the interrup tion of the order to increase the speed of motor 20 (right hand side)and the two pairs of tracts 16', 13' and 16", 13" will rotate again at the same speed.
  • a centering device of known type could be eventually placed at a preestablished distance, after the extension device, for recuperating the lateral macroscopic compositions, or for devices of very big dimensions, buto this does change nothing of the ambit of the finding, as also protected by the following claims.

Landscapes

  • Treatment Of Fiber Materials (AREA)
EP84200549A 1983-05-05 1984-04-18 Dispositif d'étirage et de centrage de tissus Withdrawn EP0124932A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT67484/83A IT1171015B (it) 1983-05-05 1983-05-05 Dispositivo allargatore centratore di tessuti in corda
IT6748483 1983-05-05

Publications (2)

Publication Number Publication Date
EP0124932A2 true EP0124932A2 (fr) 1984-11-14
EP0124932A3 EP0124932A3 (fr) 1986-01-02

Family

ID=11302794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84200549A Withdrawn EP0124932A3 (fr) 1983-05-05 1984-04-18 Dispositif d'étirage et de centrage de tissus

Country Status (3)

Country Link
EP (1) EP0124932A3 (fr)
ES (1) ES8503387A1 (fr)
IT (1) IT1171015B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10118697A1 (de) * 2001-04-17 2002-10-31 Erhardt & Leimer Gmbh Vorrichtung zum Ausstreifen von Kanten einer laufenden Warenbahn
CN106516832A (zh) * 2015-09-10 2017-03-22 天津宝盈电脑机械有限公司 一种展布装置
IT201600094253A1 (it) * 2016-09-20 2018-03-20 Ravizza Packaging S R L Macchina per il confezionamento di articoli entro involucri di materiale flessibile

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2245795A1 (fr) * 1973-09-27 1975-04-25 Conti Fulvio
FR2394483A1 (fr) * 1977-06-15 1979-01-12 Bassani Mariano Dispositif d'ouverture et d'etalement en largeur d'un tissu plie
FR2455647A1 (fr) * 1979-05-04 1980-11-28 Bassani Mariano Appareil d'ouverture pour tissus en boyaux
JPS5847746A (ja) * 1981-09-14 1983-03-19 Toyo Kikai Kk 走行生地の拡布、案内装置
DE3408496A1 (de) * 1983-03-11 1984-10-11 Toyo Machinery Co., Ltd., Osaka Speiz- und leiteinrichtung fuer eine bewegte bahn

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2245795A1 (fr) * 1973-09-27 1975-04-25 Conti Fulvio
FR2394483A1 (fr) * 1977-06-15 1979-01-12 Bassani Mariano Dispositif d'ouverture et d'etalement en largeur d'un tissu plie
FR2455647A1 (fr) * 1979-05-04 1980-11-28 Bassani Mariano Appareil d'ouverture pour tissus en boyaux
JPS5847746A (ja) * 1981-09-14 1983-03-19 Toyo Kikai Kk 走行生地の拡布、案内装置
DE3408496A1 (de) * 1983-03-11 1984-10-11 Toyo Machinery Co., Ltd., Osaka Speiz- und leiteinrichtung fuer eine bewegte bahn

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 133, (M-221)[1278] 10th June 1983; & JP-A-58 047 746 (TOUYOU KIKAI K.K.) 19.03.1983 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10118697A1 (de) * 2001-04-17 2002-10-31 Erhardt & Leimer Gmbh Vorrichtung zum Ausstreifen von Kanten einer laufenden Warenbahn
DE10118697C2 (de) * 2001-04-17 2003-03-06 Erhardt & Leimer Gmbh Vorrichtung zum Ausstreifen von Kanten einer laufenden Warenbahn
CN106516832A (zh) * 2015-09-10 2017-03-22 天津宝盈电脑机械有限公司 一种展布装置
IT201600094253A1 (it) * 2016-09-20 2018-03-20 Ravizza Packaging S R L Macchina per il confezionamento di articoli entro involucri di materiale flessibile

Also Published As

Publication number Publication date
IT8367484A0 (it) 1983-05-05
EP0124932A3 (fr) 1986-01-02
IT1171015B (it) 1987-06-10
ES532091A0 (es) 1985-03-01
ES8503387A1 (es) 1985-03-01

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