EP3141650A1 - Dispositif de recherche de bord et de guidage pour un tissu - Google Patents

Dispositif de recherche de bord et de guidage pour un tissu Download PDF

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Publication number
EP3141650A1
EP3141650A1 EP16187775.8A EP16187775A EP3141650A1 EP 3141650 A1 EP3141650 A1 EP 3141650A1 EP 16187775 A EP16187775 A EP 16187775A EP 3141650 A1 EP3141650 A1 EP 3141650A1
Authority
EP
European Patent Office
Prior art keywords
fabric
chain
module
head part
edge
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Withdrawn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
EP16187775.8A
Other languages
German (de)
English (en)
Inventor
Guido Giorgetti
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.)
Unitech Textile Machinery SpA
Original Assignee
Unitech Textile Machinery 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 Unitech Textile Machinery SpA filed Critical Unitech Textile Machinery SpA
Publication of EP3141650A1 publication Critical patent/EP3141650A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • D06C3/02—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by endless chain or like apparatus
    • D06C3/028—Devices for feeding material onto or removing it from stenders
    • 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
    • D06C3/02—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by endless chain or like apparatus
    • 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
    • D06C3/02—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by endless chain or like apparatus
    • D06C3/025—Driving or guiding means for stenter chains
    • D06C3/026—Detection means for controlling lateral position of the textile material

Definitions

  • the present invention relates to the field of systems and of machines for the treatment of fabrics, and in particular to an edge seeking and guiding device of the fabric to be moved with the correct alignment into a treatment area.
  • the present invention also relates to a chain drying machine comprising said device at the inlet.
  • chain drying machines for fabrics are characterized by an inlet area in which the fabric, fed by one or more motorized rollers, is accompanied on the moving chain provided with pins and on this, by means of one or more opposing brushes, it is grasped to allow it to be moved into the oven.
  • the moving chain slides inside containing guides that are hinged with respect to the inlet area of the oven and with respect thereto, through the aid of electric drives, can move independently to the right or to the left so as to follow the edge of the fabric that, by nature, is movable with respect to the theoretic position.
  • current edge seeking guides can be angled with respect to the theoretic position by an angle given by the maximum angle obtainable between pin and bushing of the moving chain that normally, for off-the-shelf chains, is between 1° and 1.5°, while for those made to specification, with barrel pins, is between 2° and 2.5°.
  • This limit of the chain makes it necessary to produce very long guides to obtain a high range of the seeking area.
  • a guide with a length of one meter with an off-the-shelf chain cannot seek for more than 17.5 mm per side.
  • the length of the guides could be reduced by adopting custom designed chains, but these have a high cost that has a significant influence on the economy of the machine.
  • Chain guiding systems in similar machines are disclosed, for example, in GB2085499 , US3179977 and US3066377 . These documents disclose chain guide systems showing chain guides in which the angles of stretches can be adjusted before the machine is operated, but which remain fixed during feed of the fabric and therefore do not have a head of the guide that moves, and that moves the entire guide, to seek the edge of the fabric.
  • the object of the present invention is to provide an edge seeking and guiding device of a fabric for infeed by means of chains into a fabric treatment area, which is compact while allowing seeking of the edge of the fabric for a spatial range adequate for the requirements.
  • Another object of the present invention is to produce an edge seeking and guiding device of a fabric for infeed by means of chains into a fabric treatment area, that can be adapted to various types of treatment machines, and in particular to various types of drying machines.
  • a further object of the present invention is to produce a drying oven for fabrics that has an edge seeking and guiding device of a fabric for infeed by means of chains into a fabric treatment area, which is compact and allows effective seeking of the edge of the fabric.
  • an edge seeking and guiding device of a fabric for infeed by means of chains into a fabric treatment area comprising, for each of the two edges of the fabric:
  • the chain can thus be angled, on each stretch corresponding to an intermediate guide module, by a maximum angle equal to the maximum angle structurally permitted between the links of the chain. Therefore, the sum of the maximum relative angles that can be reached between the intermediate modules is greater than the maximum angle permitted between the links of the chain.
  • the guide means comprise at least three of said intermediate guide modules hinged to one another in series; each unit formed by three of said intermediate guide modules hinged to one another in series comprising respectively:
  • the plan projection of the line on which the hinges of said fourth element lie intersects the plan projection of the line on which the two hinges of said second module lie.
  • said group of three of said intermediate modules hinged to one another in series, and said fourth constraining element form a flat articulated quadrilateral, with said second module forming a central member, the first and the third module forming respective crank members that extend from opposite sides with respect to the central member, and with the fourth element forming the connecting rod of the quadrilateral.
  • said head part motorized moving means which combine a direction of translation transverse to the direction of feed of the fabric and a direction of translation corresponding to the feed of the fabric,.
  • said moving means comprise a first transverse guide, fixed with respect to the ground, on which there is provided at least one slide on which there is rotatingly associated a second longitudinal guide, on which there is slidingly provided said head part, so that the head part can move in the two directions defined by said first and second guide.
  • said intermediate modules are provided with at least one idle upper pinion, on which the chain being moved from said head part to said tail part meshes, and means for preventing disengagement of the chain from the pinion.
  • said intermediate modules are provided with at least one idle lower pinion on which the chain being moved from said tail part to said head part meshes, that is relating to the return branch with respect to the upper branch for moving of the fabric.
  • said head part and/or said tail part comprises an idle guide pinion.
  • the invention also relates to a drying oven for fabrics, comprising a drying station and, at the inlet thereto, an edge seeking and guiding device of a fabric for infeed into said drying station according to one or more of the configurations indicated above.
  • the invention can also be used with products other than fabrics, such as leathers or similar materials.
  • a drying oven for fabrics according to the invention is indicated as a whole with the number 10.
  • This drying oven 10 comprises a drying station 11 and an edge T1 seeking and guiding device 12 of a fabric T for infeed into the drying station according to the invention.
  • the drying station is of "static" type, that is without fans for blowing air onto the fabric, but the device 12 can also be used at the inlet to other types of drying stations, such as blown air or infrared ovens. In other examples, the edge seeking and guiding device 12 can be used at the inlet to other fabric treatment stations. For this reason, no detailed description of the drying station will be given below.
  • the edge seeking device 12 for the longitudinal edges (that is those substantially corresponding to the feed movement of the same fabric) of the fabric comprises, for each of the two edges, a structure 12A that allows seeking, holding and guiding of the related edge of the fabric. Therefore, two of these structures 12A are provided, one for each edge of the fabric. In the present description only one is described and shown, as the other is equivalent.
  • each structure 12A relating to an edge of the fabric, comprises a chain 13 for moving the fabric, on which there are arranged holding elements 14 of the fabric (see for example Figs. 5 and 8 ), for example of the type with needles on which the edges of the fabric are held.
  • these elements have blocks fixed to the chain 13, on which the needles are fixed.
  • Each structure 12A comprises guide means 16 for the chain 13 along its feed path.
  • the chain 13 moves in a closed loop, along an outward path in which it moves the fabric from a holding area of the fabric to a release area of the fabric, and a lower return path of the chain 13 toward the holding area.
  • these guide means 16 also allow an angular variation of the direction of said feed path of the chain 13.
  • the guide means 16 comprise a head part 17, sliding both transversely and longitudinally to the direction of feed of the fabric to follow the variation of the position of the edge of the fabric; this head part 17 is movable remaining substantially parallel to itself, as better explained below.
  • the guide means also comprise a tail part 18, substantially fixed with respect to the ground, that is fixed to the frame of the oven.
  • the chain 13 can be angled in this way, on each stretch corresponding to an intermediate guide module 19, by a maximum angle equal to the maximum angle structurally permitted between the links of the chain, for example 1.5° or 2.5°. Therefore, the sum of the maximum relative angles that can be reached between the intermediate modules is greater than the maximum angle permitted between the links of the chain.
  • Each intermediate guide module 19 is provided with an upper pinion 20, preferably idle, on which the chain 13 being moved from the head part 17 to the tail part 18 meshes, that is the upper branch of the chain that carries the fabric, and a lower pinion 21, also preferably idle, on which the chain 13 being moved from the tail part 18 to the head part 19 meshes, that is the lower return branch of the chain without fabric.
  • each intermediate guide module 19 has means for preventing disengagement of the chain 13 from the upper pinion 20, which are represented for example by a slide arranged above the chain and fixed to the module, at a distance from the pinion such that the chain is prevented from escaping from the teeth of the pinion, for example a distance of less than the height of the side of the chain. These means prevent the chain from disengaging from the pinion when the chain is angled.
  • the head part 17 has a first pinion 23 on which the chain 13 meshes, for guiding the chain from the lower stretch to the upper stretch.
  • the tail part 18 is similar to the intermediate guide modules 19 with the difference that it is fixed to the frame of the drying station. Inside this latter, there are provided other idle guide pinions 24.
  • the chain 13 with the fabric T enters the drying station, travels the necessary distance and, at the outlet thereof, the fabric is detached from the chain and directed toward other treatments by specific systems, while the chain 13 returns toward the inlet area of the oven, meshing on the lower pinions 21 of the intermediate guide modules 19, until reaching the first guide pinion 23.
  • the intermediate guide modules 19 are preferably all the same and the mutual articulation hinges are provided with pins 25 fitted in corresponding seats of two adjacent modules.
  • intermediate guide modules 19 hinged to one another in series.
  • Each group formed of these three of said modules hinged to one another in series are provided respectively (in particular with reference to Fig. 13 ), a first intermediate module 19', a second intermediate module 19" hinged to the first module 19', a third intermediate module 19'" hinged to the second module 19", and a fourth constraining element 26, for example in the form of rod or tie bar, hinged at its ends respectively to the first intermediate module 19' and to the third intermediate module 19"'.
  • plan projection of the line on which the hinges of the fourth constraining element 26 lie intersects the plan projection of the line on which the two hinges of the second module 19" lie at the respective first and third module 19'-19"'.
  • the group of intermediate modules 19', 19", 19'" hinged to one another in series, with the fourth constraining element 26, form a flat articulated quadrilateral, with the second module 19" forming the "central member” of the quadrilateral, the first 19' and the third module 19"' forming respective "crank” members that extend from opposite sides with respect to the central member 19", and with the fourth element 26 forming the "crank" member of the quadrilateral, according to the diagrams shown in Figs. 12 and 13 .
  • the hinges of the "central member” 19" are associated with rollers, i.e. sliding.
  • the intermediate guide modules 19 comprise an intermediate head module 19A, hinged to the head part 17; it must be noted that no fourth constraining element is provided between the intermediate head module 19A and the head part 17.
  • the intermediate guide modules 19 further comprise an intermediate tail module 19B, hinged to the tail part 18.
  • a corresponding fourth constraining element 26 is provided hinged respectively to the tail part 18 and to the intermediate module hinged immediately adjacent to the intermediate tail module 19B.
  • motorized moving means 27 which combine a direction of translation transverse to the direction of feed of the fabric and a direction of translation corresponding to the feed of the fabric,.
  • these moving means 27 comprise (see in particular Figs. 3 and 4 ) a first transverse guide 28, fixed with respect to the ground, on which there is provided a slide 29 (sliding according to f1) on which there is rotatingly associated (arrow f2) a second longitudinal guide 30, on which there is slidingly provided the head part, so that the head part can move in the two directions defined by the first and second guide.
  • the first guide 28 is a linear actuator, of known type, such as pneumatic, hydraulic or electromechanical, provided with the slide 29.
  • the second guide 30 for example of the recirculating ball type there is provided a slide on which the head part 17 is fixed.
  • These means 32 allow the position of the edge of the fabric to be detected and communicated to the electronic control unit of the device, which controls the moving means 27 of the head part 17 to move it to follow the edge; these means can be arranged directly on the head parts 17 or in another position, separated therefrom.
  • These means can be substantially of known type, such as mechanical feelers or optical vision systems (such as video cameras connected to suitable software).
  • the fabric T reaches, in a known manner, the inlet area, in which the edge seeking and guiding device 12 is provided.
  • the edge seeking and guiding device 12 is provided.
  • two structures 12A that form the device 12, one for each edge. Movement of the two structures 12A is independent, that is the head part 17 of each structure, through the sensing means 32, independently detects the position of the related edge of the fabric and moves independently to the other to follow the variation of the position of this edge.
  • the electronic control unit of the device sees the position of the edge (and its variation in space) and controls the moving means 27 of the head part 17 to move this to follow the edge so that it is aligned with the fixing means 15 of the edge of the fabric to the holding elements 14.
  • the edge is aligned with the needles of the chain that travels through the head part 17 and is pressed thereon by the wheel/brush 15A provided on the same head part 17.
  • the particular kinematic chain produced by the series of articulated quadrilaterals formed of the intermediate guide modules 19 and of the head and tail parts 17 and 18, allows the same head part 17 to move in practice according to two orthogonal and variable directions, to approximate in practice curvilinear trajectories.
  • the projection of the maximum seeking spatial range is given, in practice, between two ends, reached when the intermediate guide modules are hinged to one another all by the same maximum angle that can be reached between the links of the chain (angle on the approximately common plane on which the pins of the links lie) to produce a concave/convex broken line, and for the equivalent negative value of this angle.
  • the chain 13 is moved by the motorized pinion 24A positioned in the end area of the oven and, in the device 12 meshes with the upper pinions of the intermediate modules 19. From the head part 17, the chain 13 carries the fabric into the drying station, passing through the tail part 18, which has a fixed position, linked to the size of the oven. The fabric is dried during its travel through the drying station. At the outlet thereof, the fabric, in a known manner, is detached from the chain and moved outside, for any other treatments. The chain returns to the intermediate modules 19, on the lower pinions thereof, to the head part 17.
  • a tensioning device of the moving chain of mechanical or pneumatic type, required to compensate for slack in the chain following variations in temperature.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
EP16187775.8A 2015-09-11 2016-09-08 Dispositif de recherche de bord et de guidage pour un tissu Withdrawn EP3141650A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A003571A ITUB20153571A1 (it) 2015-09-11 2015-09-11 Dispositivo di ricerca e guida dei bordi di un tessuto

Publications (1)

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EP3141650A1 true EP3141650A1 (fr) 2017-03-15

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ID=54884194

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EP16187775.8A Withdrawn EP3141650A1 (fr) 2015-09-11 2016-09-08 Dispositif de recherche de bord et de guidage pour un tissu

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EP (1) EP3141650A1 (fr)
IT (1) ITUB20153571A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107764191A (zh) * 2017-11-15 2018-03-06 嘉兴扬鑫机械有限公司 探边器、探边方法及拉宽机
US20230129064A1 (en) * 2021-10-25 2023-04-27 Texmag Gmbh Vertriebsgesellschaft Device for Introducing a Running Material Web into a Tenter Machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE698317C (de) * 1939-05-11 1940-11-07 C H Weisbach Komm Ges Vorrichtung mit Kantenfuehler zur selbsttaetigen Einstellung der nach dem Lauf der Stoffbahnkanten zu regelnden Teile, insbesondere bei Gewebespannmaschinen
US3066377A (en) 1961-01-23 1962-12-04 Winsor & Jerauld Mfg Company Angle reduction guideway for tenter chain
US3179977A (en) 1964-02-03 1965-04-27 Marshall And Williams Corp Multiple hinged rail joint
US3551970A (en) * 1968-01-18 1971-01-05 Samcoe Holding Corp Apparatus for handling and processing open width fabric
DE2237014A1 (de) * 1972-07-27 1974-02-07 Brueckner Trockentechnik Kg Spannmaschine fuer warenbahnen
GB2085499A (en) 1980-10-14 1982-04-28 Marshall & Williams Co Tenter frame with roller clip

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE698317C (de) * 1939-05-11 1940-11-07 C H Weisbach Komm Ges Vorrichtung mit Kantenfuehler zur selbsttaetigen Einstellung der nach dem Lauf der Stoffbahnkanten zu regelnden Teile, insbesondere bei Gewebespannmaschinen
US3066377A (en) 1961-01-23 1962-12-04 Winsor & Jerauld Mfg Company Angle reduction guideway for tenter chain
US3179977A (en) 1964-02-03 1965-04-27 Marshall And Williams Corp Multiple hinged rail joint
US3551970A (en) * 1968-01-18 1971-01-05 Samcoe Holding Corp Apparatus for handling and processing open width fabric
DE2237014A1 (de) * 1972-07-27 1974-02-07 Brueckner Trockentechnik Kg Spannmaschine fuer warenbahnen
GB2085499A (en) 1980-10-14 1982-04-28 Marshall & Williams Co Tenter frame with roller clip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107764191A (zh) * 2017-11-15 2018-03-06 嘉兴扬鑫机械有限公司 探边器、探边方法及拉宽机
US20230129064A1 (en) * 2021-10-25 2023-04-27 Texmag Gmbh Vertriebsgesellschaft Device for Introducing a Running Material Web into a Tenter Machine

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Publication number Publication date
ITUB20153571A1 (it) 2017-03-11

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