EP0285592A1 - Fadenliefervorrichtung für Webmaschinen - Google Patents

Fadenliefervorrichtung für Webmaschinen Download PDF

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Publication number
EP0285592A1
EP0285592A1 EP88870045A EP88870045A EP0285592A1 EP 0285592 A1 EP0285592 A1 EP 0285592A1 EP 88870045 A EP88870045 A EP 88870045A EP 88870045 A EP88870045 A EP 88870045A EP 0285592 A1 EP0285592 A1 EP 0285592A1
Authority
EP
European Patent Office
Prior art keywords
thread
drum
wire
supplier
supplier device
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.)
Granted
Application number
EP88870045A
Other languages
English (en)
French (fr)
Other versions
EP0285592B1 (de
Inventor
Henry Shaw
Andre Vandeputte
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.)
Picanol NV
Original Assignee
Picanol NV
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 Picanol NV filed Critical Picanol NV
Publication of EP0285592A1 publication Critical patent/EP0285592A1/de
Application granted granted Critical
Publication of EP0285592B1 publication Critical patent/EP0285592B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/364—Yarn braking means acting on the drum
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/364—Yarn braking means acting on the drum
    • D03D47/366—Conical
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms

Definitions

  • the present invention relates to an improved supplier device for weaving machines, associating more particularly a supplier composed mainly of a thread guide arm and a drum on the one hand, and a peripheral apparatus placed in front and / or behind the supplier, in line with it, on the other hand.
  • the invention presented relates to a supply device at the outlet of which a grommet element can be introduced automatically, in the axial direction. This grommet element will automatically find the path to the input of the supplier device, where a weft thread can be attached to it, after which the removal of the grommet element automatically leads to the re-entry of the thread on the supplier and its peripheral equipment.
  • weft thread can be manually retracted onto suppliers by passing a flexible material pass-through element, carrying the weft thread, successively through the supplier's organs such as thread guide arm, anti-balloon ring, etc.
  • the invention presented provides a supplier device making it possible to return the weft yarn to both the supplier and the peripheral equipment, using a flexible grommet element and in a single operation.
  • the supplier device provided by the invention is characterized in that it consists of a set of auxiliary and guide elements mounted on the peripheral equipment on the one hand and on the supplier on the other hand , and forming, with the conventional organs of the supplier, a guide path providing, for the flexible grommet element, an inlet and an outlet oriented in the axial direction.
  • the axial orientation of the inlet and outlet through which the grommet element passes offers the notable advantage of making such an improved supply device particularly suitable for automatic re-entry of the weft thread, due to the fact that a automatic grommet device will generally be presented axially in front of the supplier device, the weft thread to be fixed to the grommet element also being generally presented in the axis of the supplier device.
  • the supplier device illustrated in FIG. 1 mainly consists of a supplier 1 and a peripheral device placed at the input 2 and at the output 3 of this supplier; in the example illustrated, this apparatus consists of a wire brake 4 and a wire compensator 5, respectively.
  • the supplier 1 mainly consists of a drum 6 and a wire guide arm 7, as in conventional installations. Near the unwinding edge 8, the drum 6 conventionally comprises a crown 9 formed of flexible metal strips acting as an anti-bloating device.
  • the wire brake 4 is formed mainly of two nozzles 10 and 11 interacting and between which a wire can be led.
  • the thread compensator 5 mainly consists of two thread guides 12 and 13, constituted for example by two eyelets, between which the thread can be subjected to the action of a pressure element 14.
  • the invention presented is distinguished by the fact that the supplier device is provided, both at the level of the supplier 1 and at the height of the peripheral apparatus, with a set of guide elements forming, with the conventional members that the we just mentioned, a path allowing the guide of the grommet element 15 so that the latter can be pushed in a single movement through the supplying device, more particularly from the outlet 3 to the inlet 2, so that a weft thread 16 can be fixed to the thread guide element 15 when the latter has reached the thread brake 4.
  • the thread of frame 16 can then be returned to the supplier device.
  • the main guide elements and auxiliary elements which equip the supplier device and which are represented in the two figures 1 and 2, essentially consist of elements 17 which can exert an opening force on the pressure element 14 of the thread compensator 5 , a hub cover 18 placed at the end of the drum 6, a recess or a channel 19 formed in the drum 6 and an element 20 intended to force the opening of the wire brake 4.
  • the hub cover 18 mentioned above is placed in the axis of the drum 6, on the outlet side 3 thereof.
  • this hub cover 18 takes the form of a cone in which a guide 21 is made, for example in the form of a groove.
  • the cutout 19 mentioned above extends this groove and has a path as illustrated in Figure 2; a sectional view of this cutout is given in FIG. 4.
  • the latter makes it possible to clearly observe that the cutout 19 consists of a T-groove in which the transverse part 22 is intended to guide the grommet element 15 , while the longitudinal part 23 provides the passage for the weft thread to be returned to the drum during the return stroke of the grommet element 15.
  • the cutout 19 ensures a smooth transition between the end piece 24 and the surface of winding 25 of the drum 6.
  • FIG. 5 also shows that during normal operation of the supplier, the movement of the weft thread 16 is in no way hampered by the cutout 19 mentioned above, since the weft thread leaves the drum by forming a suitable angle with respect to cutting 19.
  • FIGS. 6 and 7 give a schematic view of the operation of the elements 17 intended to force the movement of the pressure element 14 between the thread guides 12 and 13, so as to open the passage to the thread pass element 15.
  • the elements 17 could, for example, consist of an ordinary push rod, but also, as illustrated in FIG. 8, include a thread guide element 26, the movement of which can force the pressure element on the side 14 of the compensator, while guiding the grommet element 15 between the thread guides 12 and 13 when it is at rest.
  • the wire brake 4 mentioned above is equipped with one or more elements 20 which, animated by a suitably chosen movement, can open the wire brake 4 so as to allow passage to the wire pass element 15 .
  • the supplier can also be provided with control and drive devices which, when the thread guide arm and / or the drum are stopped, ensure the alignment of the end of the thread guide arm 7 and of the cutout 19 Therefore, a grommet element 15 once introduced into the axis of the thread compensator 5, this element may be through the entire supplier device, after which, a weft thread 16 once fixed to this grommet element and this once retracted, the weft thread 16 will be driven both through the thread brake 4, the supplier 1 and the thread compensator 5.
  • peripheral equipment mentioned above can also include several elements, and that, both at input 2 and at output 3, a wire brake 4 or a wire compensator can be provided. 5, or a combination of several of these elements. This is why the description of some variants of installations or parts of installations in accordance with the invention is given below.
  • FIG. 10 illustrates a wire brake compensator 27, conventionally composed of two elements 28 and 29 articulated to one another by a spring hinge, and the opposing faces of which are provided with eyelets or wire guides , 30 and 31 respectively, arranged alternately on each of these faces.
  • the weft thread 16 is guided along the path illustrated in FIG. 10, the spacing of the elements 28 and 29 (whose relative position is adjusted by the spring hinge) creating , on the one hand, a braking effect and, on the other hand, a compensation effect on the weft thread 16.
  • the invention presented provides for the presence of a closing device intended to bring the elements 28 and 29 of which mentioned above, such that the eyelets 30 and 31 shown in FIG. 11 are placed in line with each other. others, thus providing passage to the grommet element 15.
  • This closing device can consist, for example, of pressure elements 32 and 33, the bringing together of which can command the closing of the brake compensator 27. It goes from it is clear that this closing device can be produced by other embodiments.
  • FIGS. 12 to 14 show a series of variants in accordance with the invention, in which the brake compensator 5 described above is characterized by a mobile design which allows it to be moved in the radial direction, more particularly providing for the possibility of a displacement, relative to the axis 36 of the device, of the wire guides 12 and 13 or, at the very least, of the guide eyelets 34 and 35 proper.
  • the wire guides 12 and 13 are mounted on an axis and can pivot so that their free end and, consequently, their guide eyelet 34 or 35, can be aligned with respect to the cutout 19. It it is clear that in this case, the hub cover 18 becomes useless.
  • the wire guides 12 and 13 pivot by an even greater angle, so as to present the eyelets 34 and 35 in the extension of the outlet 37.
  • the cutout 19 of the drum 6 also becomes useless, since the thread passage element 15 can be pushed directly from the thread compensator 5 into the thread guide arm 7.
  • the axial movement is obtained by moving the entire compensator 5, for example on a slide 38. It is clear that in the two embodiments illustrated in FIGS. 13 and 14, brushes 39 will be used in preference to crown 9 with metal strips. The grommet element 15 can in this case be easily pushed through the bristles of the brushes.
  • Figures 15 and 16 illustrate two other embodiments of a wire compensator 15, in which the wire guides 12 and 13 are composed of two parts, so that the spacing thereof, designated respectively by 12A, 12B and 13A, 13B, controls the opening of the eyelets themselves 34 and 35.
  • the wire guides 12 and 13 are divided into two parts along their longitudinal axis, one of them (designated by 12A and 13A, respectively) can pivot in a radial direction at height of the eyelets 34 and 35.
  • the operation of this device consists in that the parts 12A and 13A will pivot to allow the retraction of the weft thread (position indicated in dotted lines), after which the weft thread will be passed through the arm thread guide 7 using the thread pass element 15, the latter now stretching the weft thread 16; then the parts 12A and 13A will switch to the rest position, against the parts 12B and 13B, so that the weft thread 16 will pass through the eyelets 34 and 35, now closed.
  • FIG. 16 gives a variant in which the wire guides 12 and 13 are divided transversely into two parts A and B, the parts 12A and 13A being mobile and the parts 12B and 13B, fixed.
  • the displacement of the parts 12A and 13B makes it possible to obtain an operation similar to that of the embodiment presented in FIG. 15.
  • the thread guides 12 and 13 mentioned above, as well as the thread guides fitted to any other peripheral equipment, may also be provided with eyelets 34-35 in accordance with that illustrated in FIG. 17.
  • the ends of the thread guides are here formed by partially open eyelet sections 40-42 and placed in overlap, and provided on their inner periphery with suitable guide surfaces 43-45.
  • a weft thread 16 can then be introduced into the eyelets 34 and 35 by simple pressure, the construction of the assembly guaranteeing any risk of the thread coming out.
  • FIG. 18 illustrates a particular application of the eyelets 34 and 35 mentioned above, in a device provided with a hinge movement allowing a reciprocal movement of the wire guides 12 and 13 in order to force the wire weft 16 in the eyelets 34 and 35.
  • the figure gives another variant of the wire brake 4 mentioned above, in which this brake, provided with raised edges 46 and 47, can move laterally along the arrow P.
  • the raised edges allow the introduction of the pass element -wire 15 in a simple way: it will be sufficient to pass the weft thread 16, after which the thread brake 4 can be brought back in place by a movement according to the arrow P.
  • the noses 10 and 11 will pinch the weft thread 16 to place it properly between these spouts.
  • the weft brake 4 can be moved according to arrow P at an earlier moment, so as to guide the movement of the grommet element 15 during its passage.
  • the grommet element 15 can be hollow, so that after its introduction into the supply device, the weft thread 16 can be blown or sucked through the grommet element, after which , this element once removed from the supplier device, the weft thread 16 will be returned to the supplier device in an appropriate manner.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP19880870045 1987-03-13 1988-03-10 Fadenliefervorrichtung für Webmaschinen Expired - Lifetime EP0285592B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8700253A BE1000375A4 (nl) 1987-03-13 1987-03-13 Verbeterde voorafwikkelinrichting voor weefmachines.
BE8700253 1987-03-13

Publications (2)

Publication Number Publication Date
EP0285592A1 true EP0285592A1 (de) 1988-10-05
EP0285592B1 EP0285592B1 (de) 1991-05-22

Family

ID=3882561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880870045 Expired - Lifetime EP0285592B1 (de) 1987-03-13 1988-03-10 Fadenliefervorrichtung für Webmaschinen

Country Status (3)

Country Link
EP (1) EP0285592B1 (de)
BE (1) BE1000375A4 (de)
DE (1) DE3862886D1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436900A1 (de) * 1989-12-29 1991-07-17 ROJ ELECTROTEX S.p.A. Schussfadenzubringer für Greifer- und Projektilwebmaschinen
WO1993006277A1 (en) * 1991-09-19 1993-04-01 Roj Electrotex S.P.A. Weft feeder for gripper and projectile looms
EP1695935A2 (de) * 2005-02-25 2006-08-30 L.G.L. Electronics S.p.A. Fadenliefergerät für Textilmaschinen mit einer Fadenbremsvorrichtung
CN110678592A (zh) * 2017-05-30 2020-01-10 必佳乐公司 纬纱供给器装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR750512A (fr) * 1933-02-10 1933-08-11 Etablissements Augustin Fouvez Dispositif d'enfilage automatique et simultané des fils aux machines à pelotonner
DE1217828B (de) * 1963-02-22 1966-05-26 Josef Trost Doppeldrahtzwirnspindel mit zwei ueber Kopf abzuziehenden Ablaufspulen
FR2291304A1 (fr) * 1974-11-15 1976-06-11 Vyzk Vyvojovy Ustav Zavodu Dispositif pour deposer des fils que l'on fournit, en particulier les fils de trame que l'on doit alimenter dans des metiers a tisser sans navette
BE899393A (nl) * 1984-04-12 1984-10-12 Picanol Nv Inrichting voor de automatische toevoer van inslagdraad naar een draadopslaginrichting van een weefgetouw.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR750512A (fr) * 1933-02-10 1933-08-11 Etablissements Augustin Fouvez Dispositif d'enfilage automatique et simultané des fils aux machines à pelotonner
DE1217828B (de) * 1963-02-22 1966-05-26 Josef Trost Doppeldrahtzwirnspindel mit zwei ueber Kopf abzuziehenden Ablaufspulen
FR2291304A1 (fr) * 1974-11-15 1976-06-11 Vyzk Vyvojovy Ustav Zavodu Dispositif pour deposer des fils que l'on fournit, en particulier les fils de trame que l'on doit alimenter dans des metiers a tisser sans navette
BE899393A (nl) * 1984-04-12 1984-10-12 Picanol Nv Inrichting voor de automatische toevoer van inslagdraad naar een draadopslaginrichting van een weefgetouw.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436900A1 (de) * 1989-12-29 1991-07-17 ROJ ELECTROTEX S.p.A. Schussfadenzubringer für Greifer- und Projektilwebmaschinen
US5123455A (en) * 1989-12-29 1992-06-23 Roj Electrotex S.P.A. Weft feeder with apparatus for broken thread removal
WO1993006277A1 (en) * 1991-09-19 1993-04-01 Roj Electrotex S.P.A. Weft feeder for gripper and projectile looms
KR100248532B1 (ko) * 1991-09-19 2000-04-01 로이 레모 그립퍼 및 투사 직기용 위사 공급기
EP1695935A2 (de) * 2005-02-25 2006-08-30 L.G.L. Electronics S.p.A. Fadenliefergerät für Textilmaschinen mit einer Fadenbremsvorrichtung
EP1695935A3 (de) * 2005-02-25 2008-10-01 L.G.L. Electronics S.p.A. Fadenliefergerät für Textilmaschinen mit einer Fadenbremsvorrichtung
CN110678592A (zh) * 2017-05-30 2020-01-10 必佳乐公司 纬纱供给器装置

Also Published As

Publication number Publication date
DE3862886D1 (de) 1991-06-27
EP0285592B1 (de) 1991-05-22
BE1000375A4 (nl) 1988-11-16

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