EP1723277A1 - Procede de production de canevas et dispositif utile a cet effet - Google Patents

Procede de production de canevas et dispositif utile a cet effet

Info

Publication number
EP1723277A1
EP1723277A1 EP05700504A EP05700504A EP1723277A1 EP 1723277 A1 EP1723277 A1 EP 1723277A1 EP 05700504 A EP05700504 A EP 05700504A EP 05700504 A EP05700504 A EP 05700504A EP 1723277 A1 EP1723277 A1 EP 1723277A1
Authority
EP
European Patent Office
Prior art keywords
warp threads
tension rollers
strands
pair
wefts
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
EP05700504A
Other languages
German (de)
English (en)
Other versions
EP1723277B1 (fr
Inventor
Milan Stejskal
Jaroslav Havlik
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.)
Vyzkumny Ustav Textilnich Stroju Liberec AS
Original Assignee
Vyzkumny Ustav Textilnich Stroju Liberec AS
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 Vyzkumny Ustav Textilnich Stroju Liberec AS filed Critical Vyzkumny Ustav Textilnich Stroju Liberec AS
Publication of EP1723277A1 publication Critical patent/EP1723277A1/fr
Application granted granted Critical
Publication of EP1723277B1 publication Critical patent/EP1723277B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/20—Take-up motions; Cloth beams
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
    • D03D41/008—Looms for weaving flat yarns

Definitions

  • the invention relates to a method of laid fabrics production during which are between the warp threads strands inserted wefts of required mutual distance, after which is applied an adhesive on the fabric and the fabric is dried.
  • the invention also relates to a device for laid fabrics production comprising means for warp threads placing and means for warp threads guiding through the working path to draw-off mechanism and next to adhesive applying mechanism and to a drying mechanism.
  • Laid fabrics for instance "laid scrim” type are fabrics of basically crosshatched arrangement, where particular warp threads have mutual distances and also particular weft threads have mutual distances. These fabrics are used for miscellaneous reasons according to the character of threads or fibres used for their production, for instance while using finer threads or fibres it is possible to use these fabrics as an envelope reinforcement, while using thicker (more rugged) threads or fibers it is possible for these fabrics to use for instance as in industrial purposes etc.
  • the fabrics are impregnated by an adhesive, which after setting provides cohesive strength in determined geometrical arrangement, similarly to for instance in leno weaves in leno fabrics.
  • the principle of device for laid fabrics production consists in that the means for guiding the warp threads through the working path comprise at least one pair of tension rollers, between which are separately supplied always two warp threads strands, while in the warp threads movement direction is a weft insertion device assigned to an area in front of the entry of warp threads between each pair of tension rollers and behind each pair of tension rollers is situated a laid fabric semi product tension device on a part of circumference of one of a pair of tension rollers, while behind the last pair of tension rollers is situated a draw-off device of laid fabric semi product for next processing.
  • Such device is simple and enables basically modular arrangement of a higher amount of insertion points and this way also increasing the productivity of laid fabrics production.
  • the laid fabrics tension device on a part of the circumference of one of a pair of tension rollers formed by the first tension roller from the following pair of tension rollers or it is formed by a draw-off roller of the laid fabrics tension device, while the working path of the laid fabrics semi product is established continuously crossing in an alternating direction from one tension roller to another and next to the draw-off roller of the draw-off device, which simplifies the device construction because such way the tension rollers fulfil more tasks at the same time without any problems.
  • the weft insertion device is formed by an air insertion device with an air insertion jet.
  • the weft insertion device comprises an auxiliary insertion device in a cross direction to the weft length.
  • a tension rollers pairs and weft insertion devices assigned to them are situated above each other.
  • Fig. 1 represents a side view of an example of embodiment of a weft insertion device between warp threads during laid fabrics production
  • Fig. 1a represents an axonometric view of an example of embodiment of a weft insertion device (displayed without the weft)
  • Fig. 1 represents a side view of an example of embodiment of a weft insertion device between warp threads during laid fabrics production
  • Fig. 1a represents an axonometric view of an example of embodiment of a weft insertion device (displayed without the weft)
  • FIG. 1b represents a detailed axonometric view of example of embodiment of warp threads separation to strands (6 strands - displayed without wefts and without insertion jets) from Fig. 1a
  • Fig. 1c represents an orthogonal view of embodiment from Fig. 1b (displayed without wefts and without insertion jets)
  • Fig. 2 represents a detailed axonometric view of embodiment of weft insertion device with separated warp threads (displayed without wefts and without insertion jets)
  • Fig. 3 represents an axonometric schematic arrangement of one fabric embodiment.
  • Method of laid fabrics production consists in that the warp threads are separated into strands which are separately supplied between a pair of tension rollers, between which they are combined again and they are further delivered combined by means of wrapping around a part of the circumference of one of the tension rollers for further processing, while in the point before combining both strands between the tension rollers are between the warp threads inserted wefts by acting of insertion medium (water, air) so between the tension rollers enters a fabric with wefts inserted between warp threads and by means of wrapping around a part of circumference of one of the rollers are the wefts kept in a desired position between weft threads till setting by an adhesive.
  • insertion medium water, air
  • FIG. 1 is shown a schematic embodiment of device for carrying out the method of wefts insertion between warp threads during laid fabrics production, which consists of a pair of distant separating rollers ⁇ , across which is led always one warp threads strand a, b.
  • Both warp threads strands a, b are led between tension rollers 2, which rotate in direction of arrows x, ⁇
  • a weft insertion device by acting of insertion medium, for instance water or air.
  • Weft insertion device consists of an insertion jet 6 directed to a corresponding direction between warp threads strands in the direction of tension rollers 2 lengths.
  • the insertion device can, as the case may be, comprise also an auxiliary insertion device 60 for weft insertion improvement between warp threads entering between tension rollers 2.
  • the insertion device inserts the wefts between the warp threads in designated intervals at defined tension rollers rotation that is at defined warp threads motion, by means of which is manufactured a laid fabrics semiproduct, which from the area between tension rollers 2 is under tension from wrapping around a part of surface of a draw-off roller 4 delivered over a surface of one of tension rollers 2 to the draw-off roller 4, after which follows adhesive applying and drying.
  • a stable position of wefts between the warp threads till setting by an adhesive By means of keeping the tensioned fabric semiproduct on the surface of one of tension rollers 2 and on the surface of the draw-off roller 4 is reached a stable position of wefts between the warp threads till setting by an adhesive.
  • warp threads are by means of appropriate not represented means, for instance warp combs, separated from each other at desired distance. Consequently the warp threads, for instance by means of represented system of separating rollers in regular sequences to at least three strands, i.e. m strands, where m > 2, from which each comprises a corresponding part of warp threads.
  • Separating the warp threads into regular sequences means that e.g. in separating into three strands is the first warp thread led in the first strand over the first separating roller, second warp thread is being led in the second strand over the second separating roller, the third warp thread is being led in the third strand, the fourth warp thread is being led again in the first strand, the fifth warp thread is being led again in the second strand, the sixth warp thread is being led again in the third strand etc.
  • 1a to 1c is described separation of warp threads into six strands a, b, c, d, e, f, while the first warp thread is being led in the first strand a, the second warp thread is being led in the second strand b, the third warp thread is being led in the third strand c, the fourth warp thread is being led in the fourth strand d, the fifth warp thread is being led in the fifth strand e, the sixth warp thread is being led in the sixth strand f, the seventh warp thread is being led again in the first strand a, the eighth warp thread is being led again in the second strand b, the ninth warp thread is being led again in the third strand c, the tenth warp thread is being led again in the fourth strand d, the eleventh warp thread is being led again in the strand e, the twelfth warp thread is being led again in the sixth strand f, etc., by means of which are all warp threads
  • the warp threads are during production of laid fabrics semiproduct maintained under tension, while they are kept in contact with rotating tension rollers 2, by means of which are the wefts up to fixation by adhesive reliably kept in the appropriate position on the fabric semi product.
  • the warp threads subsequently wrap around particular tension rollers 2 as the particular warp threads strands merge into the final laid fabrics configuration.
  • the warp threads strands for the purpose of formation of weft insertion points 3 merge in a cascade manner, which means that the strand a together with the strand f before entering the first pair of tension rollers 21 form the first weft insertion point 31 , the merged strands a + f together with the strand e before entering between the second pair of tension rollers 22 form the second weft insertion point 32, the merged strands a + f + e together with the strand d before entering between the third pair of tension rollers 23 form the third weft insertion point 33, the merged strands a + f + e + d together with the strand c before entering between the fourth pair of tension rollers 24 form the fourth weft insertion point 34 and the merged strands a + f + e + d + c together with the strand b before entering between the fifth pair of tension rollers 25 form the fifth weft insertion point 35, behind which comes out the
  • warp threads strands for the purpose of formation of weft insertion points 3 merge in sequence, i.e.
  • the strand a together with the strand f before entering the first pair of tension rollers form the first weft insertion point
  • the strand e together with the strand d before entering between the second pair of tension rollers form the second weft insertion point
  • the strand c together with the strand b before entering between the third pair of tension rollers form the third weft insertion point
  • the merged strands a + f together with the merged strands e + d before entering between the fourth pair of tension rollers 24 form the fourth weft insertion point
  • the merged strands a + f + e + d together with the merged strands c + b before entering between the fifth pair of tension rollers form the fifth weft insertion point, behind which comes out the formed laid fabric semiproduct into the draw-off mechanism.
  • the warp threads strands for the purpose of formation of weft insertion points 3 merge in another appropriate manner.
  • the specific process of merging particular strands and a formation of particular weft insertion points in principle depends only on specific arrangement of the device for laid fabric production.
  • the tension rollers 2 arranged in pairs 21 to 25 above each other to cascade and also the insertion devices are arranged above each other to cascade.
  • the tension rollers 2 and insertion devices arranged in another appropriate manner corresponding to the manner of dividing and merging particular strands of warp threads.
  • the insertion device of each weft insertion point 3 is advantageously formed by an air insertion device, which in Fig.
  • the insertion device 1 consists of shown air insertion jet directed to the appropriate weft insertion point 3 in the direction of length of tension rollers 2.
  • the insertion device can further consist of auxiliary insertion device 60 for improving weft insertion into the weft insertion point 3 between the warp threads wrapped around the particular pair of tension rollers 2 in the cross direction to the weft insertion direction.
  • the auxiliary insertion device can be formed for instance by an appropriate longitudinal air jet directed by its longitudinal outlet to the weft insertion point 3 between the appropriate pair of tension rollers 2.
  • the auxiliary insertion device 60 can also be formed by an appropriate series of auxiliary air blow jets in analogy to weaving machines.
  • the auxiliary insertion device 60 can also be formed by another appropriate device.
  • the insertion devices are coupled with a not represented weft insertion control device, which synchronize the action of particular insertion devices according to the demands on produced fabric, for instance also on the basis of operation speed of the entire mechanism, for instance according to the tension rollers 2 revolutions.
  • the weft insertion control device is preferably coupled with a control device of the entire machine for laid fabrics production. At least some of the tension rollers 2 and at least one from the draw-off rollers 4 are coupled with appropriate drive, for instance electromotor, which can be also central with an appropriate timing gear.
  • the device works so that the warp threads are led in their paths and they are separated into particular strands, which are subsequently being led over corresponding pairs of tension rollers 2 on which the warp threads strands merge in sequence and further lead over draw-off mechanism to the next processing of the laid fabrics semiproduct, in particular to adhesive application, drying, winding on a beam etc.
  • After turning the driving mechanism on the corresponding device parts start to move (rotate), by means of which the warp starts to move.
  • the insertion devices start weft insertion on weft insertion points 3, while the wefts are in particular weft insertion points 3 consequently by corresponding pair of tension rollers 2 clenched between warp threads of appropriate warp threads strand or between warp threads of merged strands of warp threads (in dependence on manner of dividing and merging of the warp threads).
  • the sequence of sequential positioning of particular wefts between warp threads for embodiment according to Fig. 1a is such that the first insertion device 51 inserts the first weft 511 , between the strands a and f, which form the first weft insertion point 31.
  • the first weft 511 is such that the first insertion device 51 inserts the first weft 511 , between the strands a and f, which form the first weft insertion point 31.
  • the first weft 511 is such that the first insertion device 51 inserts the first weft 511
  • the second insertion device 52 performs insertion of the second weft 522 between already merged strands a + f and newly added strand e.
  • Second and third weft 511, 522, 533 clenched between already merged strands a + f + e + d travel along circumference of one of the third pair 23 of tension rollers 2 to the fourth weft insertion point 34 formed by already merged strands a + f + e + d and newly added strand c, while in the designated point of the third weft 533 behind the fourth weft insertion point 34 (according to desired distance between particular wefts in produced fabric) performs the fourth insertion device 54 insertion of the fourth weft 544 between already merged strands a + f + e + d and newly added strand c.
  • the first insertion device 51 inserts into the first weft insertion point 31 the sixth weft, which is the new first weft 511 from the new series of wefts 511. to 555 inserted in sequence by particular insertion devices 51 to 55.
  • the distance in fabric between the first weft 511 and the sixth weft (following first weft 511) is such that between these two first wefts 511 inserted by means of identical insertion device are in the final fabric positioned second, third, fourth and fifth weft of appropriate series of wefts 511 to 555 of appropriate ordinal number i insertion namely in each cycle repetition of insertion of wefts 511 to 555 on particular weft insertion points 51 to 55.
  • the invention is not limited only to specifically described and shown embodiments but in the scope of common art it is possible to modify described and shown embodiments according to actual demands.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Looms (AREA)

Abstract

L'invention concerne un procédé de production de canevas, qui comporte les étapes consistant à : insérer des trames entre les fils de chaîne, à une distance mutuelle requise ; appliquer ensuite un adhésif sur le tissu ; et sécher le tissu. Les fils de chaîne sont chargés entre deux galets tendeurs, entre lesquels ils sont combinés à nouveau ; avant que les fils de chaîne soient combinés entre les galets tendeurs, des trames sont insérées entre lesdits fils de chaîne, ce qui permet de produire un produit de canevas semi-fini comportant des trames entre les fils de chaîne, par l'enveloppement d'une partie du pourtour d'un galet tendeur fourni à un dispositif de tirage pour la mise en oeuvre d'opérations de fabrication ultérieures. L'invention concerne aussi un dispositif de production de canevas qui comprend des moyens d'insertion de fils de chaîne et des moyens de guidage de fils de chaîne sur un trajet donné, vers un dispositif de tirage, puis vers un dispositif d'application d'adhésif, et ensuite vers un dispositif de séchage. Les moyens de guidage des fils de chaîne sur le trajet donné comprennent au moins une paire de galets tendeurs (2), entre lesquels sont chargés séparément deux fils de chaîne ; dans la direction de déplacement des fils de chaîne, un dispositif d'insertion de trame est prévu dans une zone se situant à l'entrée des fils de chaîne, entre chaque paire de galets tendeurs (2) ; derrière chaque paire de galets tendeurs (2), un dispositif tendeur de produit de canevas semi-fini est prévu sur une partie du pourtour d'un des galets tendeurs (2) ; un dispositif de tirage de produit de canevas semi-fini est prévu derrière la dernière paire de galets tendeurs (2) pour la mise en oeuvre d'un traitement ultérieur.
EP05700504A 2004-01-29 2005-01-28 Procede de production de canevas et dispositif utile a cet effet Ceased EP1723277B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ20040159A CZ300858B6 (cs) 2004-01-29 2004-01-29 Zpusob výroby kladených textilií a zarízení k výrobe kladených textilií
PCT/CZ2005/000007 WO2005073444A1 (fr) 2004-01-29 2005-01-28 Procede de production de canevas et dispositif utile a cet effet

Publications (2)

Publication Number Publication Date
EP1723277A1 true EP1723277A1 (fr) 2006-11-22
EP1723277B1 EP1723277B1 (fr) 2009-07-01

Family

ID=34812871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05700504A Ceased EP1723277B1 (fr) 2004-01-29 2005-01-28 Procede de production de canevas et dispositif utile a cet effet

Country Status (5)

Country Link
EP (1) EP1723277B1 (fr)
CA (1) CA2554247A1 (fr)
CZ (1) CZ300858B6 (fr)
DE (1) DE602005015193D1 (fr)
WO (1) WO2005073444A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ304646B6 (cs) * 2006-10-05 2014-08-20 VĂšTS, a.s. Zařízení pro zanášení útků, zejména na zařízení k výrobě kladených textilií
CN111593467A (zh) * 2020-05-29 2020-08-28 江苏万邦特种纺织发展有限公司 一种阻燃性防水布纺织机机外卷取方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB985476A (en) * 1962-10-08 1965-03-10 James Dewhurst & Son Clitheroe Improvements in or relating to weaving scrim or like open-mesh materials
JP2002249957A (ja) * 2001-02-20 2002-09-06 Hiroharu Oishibashi 拡繊糸織物の製造装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005073444A1 *

Also Published As

Publication number Publication date
DE602005015193D1 (de) 2009-08-13
CZ2004159A3 (cs) 2005-09-14
CZ300858B6 (cs) 2009-08-26
EP1723277B1 (fr) 2009-07-01
CA2554247A1 (fr) 2005-08-11
WO2005073444A8 (fr) 2006-09-14
WO2005073444A1 (fr) 2005-08-11

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