CH616970A5 - Shuttleless loom with two transport members which exchange the weft at the centre of the pass - Google Patents

Shuttleless loom with two transport members which exchange the weft at the centre of the pass Download PDF

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Publication number
CH616970A5
CH616970A5 CH710177A CH710177A CH616970A5 CH 616970 A5 CH616970 A5 CH 616970A5 CH 710177 A CH710177 A CH 710177A CH 710177 A CH710177 A CH 710177A CH 616970 A5 CH616970 A5 CH 616970A5
Authority
CH
Switzerland
Prior art keywords
belts
transport members
comb
case
ribbons
Prior art date
Application number
CH710177A
Other languages
Italian (it)
Inventor
Graziano Genini
Original Assignee
Albatex Ag
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 Albatex Ag filed Critical Albatex Ag
Priority to CH710177A priority Critical patent/CH616970A5/en
Priority to IT23875/78A priority patent/IT1095840B/en
Publication of CH616970A5 publication Critical patent/CH616970A5/en

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Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/18Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick two weft inserters meeting at or near the middle of the shed and transferring the weft from one to the other

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)

Abstract

The shuttleless loom has the two weft transport members (5, 6) moved alternately by flexible belts (3, 4) between the opposite ends and the centre of the pass. To reduce the space required inside the warp pass, the said belts (3, 4) are disposed with their longest faces parallel to the reed (1) of the loom. <IMAGE>

Description

616970 616970

2 2

Claims (3)

RIVENDICAZIONI 1. Telaio di tessitura senza navette, con due organi di trasporto della trama mossi alternativamente da nastri flessibili fra le estremità opposte ed il centro del passo, caratterizzato da ciò, che i detti nastri sono disposti con le loro facce più estese 5 parallele al pettine.1. Weaving loom without shuttles, with two weft transport members alternately moved by flexible ribbons between the opposite ends and the center of the shed, characterized in that said ribbons are arranged with their wider faces 5 parallel to the reed . 2. Telaio secondo la rivendicazione 1, in cui i nastri viaggiano con una loro faccia estesa guidata dal pettine e con la loro faccia estesa opposta guidata da piolini, gli organi di trasporto essendo connessi ai nastri in corrispondenza del loro 10 fianco lontano dalla cassa battente.The loom according to claim 1, wherein the belts travel with one extended face thereof guided by the comb and with their opposite extended face guided by pins, the transport members being connected to the belts at their flank away from the beating case . 3. Telaio secondo la rivendicazione 1, in cui i nastri viaggiano entro guide a ganci montate parallele al pettine ed emergenti dalla cassa battente, gli organi di transporto essendo montati a sbalzo su detti nastri. 153. Loom according to claim 1, wherein the belts travel within hook guides mounted parallel to the comb and emerging from the beating case, the transport members being cantilever mounted on said belts. 15 La presente invenzione riguarda un telaio di tessitura senza navette, con due organi di trasporto della trama mossi alterna-timamente da nastri flessibili"fra le estremità opposte ed il ' centro del passo. Il primo di questi nastri preleva ìa trama au un estremo del telaio e la scambia con il secondo al centro del passo, mentre il secondo ha il compito di completarne il trasporto fino all'estremo opposto.The present invention relates to a shuttleless weaving loom, with two weft transport members alternately moved by flexible belts between the opposite ends and the center of the shed. The first of these belts picks up the weft at one end of the loom and exchanges it with the second in the middle of the pass, while the second has the task of completing the transport to the opposite end. In tutti i telai di questo tipo fino ad oggi noti i nastri che comandano i movimenti degli organi di trasporto sono sempre stati disposti con le proprie facce più estese perpendicolari o sostanzialmente perpendicolari al pettine.In all looms of this type known up to now, the belts which control the movements of the conveying members have always been arranged with their most extended faces perpendicular or substantially perpendicular to the reed. Questa disposizione comporta dei seri inconvenienti in quanto da luogo ad un rilevante ingombro all'interno del passo di ordito.This arrangement involves serious drawbacks since it causes a considerable bulk inside the warp shed. Per evitare questo inconveniente la presente invenzione fornisce ora una disposizione dei nastri e degli organi di trasporto da essi controllati nei telai di tessitura senza navette che è completamente diversa da quella nota, che è studiata con criteri razionali in rapporto alla geometria delle parti della macchina tessile e dei materiali in essa lavorati e che consente rilevanti vantaggi rispetto alla disposizione nota.To avoid this drawback, the present invention now provides an arrangement of the belts and of the transport members controlled by them in shuttleless weaving looms which is completely different from the known one, which is studied with rational criteria in relation to the geometry of the parts of the weaving machine and of the materials worked therein and which allows significant advantages with respect to the known arrangement. La presente invenzione riguarda a tali scopi un telaio di tessitura senza navette con due organi di trasporto della trama mossi alternativamente da nastri flessibili fra le estremità opposte ed il centro del passo, caratterizzato da ciò che i detti nastri sono disposti con le loro facce più estese parallele al pettine.For these purposes, the present invention relates to a shuttleless weaving loom with two weft transport members alternately moved by flexible ribbons between the opposite ends and the center of the shed, characterized in that said ribbons are arranged with their widest faces parallel to the comb. Il trovato viene descritto in maggior dettaglio qui di seguito con riferimento alla tavola di disegni allegata che ne rappresenta in modo schematico due forme di esecuzione preferite a puro titolo di esempio e in cui:The invention is described in greater detail below with reference to the attached table of drawings which schematically represents two preferred embodiments purely by way of example and in which: fig. 1 è una sezione trasversale parziale praticata in un telaio di tessitura secondo l'invenzione attraverso il pettine;fig. 1 is a partial cross section made in a loom according to the invention through the reed; fig. 2 è una vista frontale parziale del telaio secondo l'invenzione, in corrispondenza del pettine e della cassa battente; e fig. 3 rappresenta in una sezione simile a quella di fig. 1 una variante di esecuzione del telaio secondo l'invenzione.fig. 2 is a partial front view of the loom according to the invention, in correspondence with the comb and the beating case; and fig. 3 represents in a section similar to that of fig. 1 a variant embodiment of the frame according to the invention. Come si vede dal disegno, ij telaio di tessitura senza navette secondo l'invenzione comporta un pettine 1 emergente da una cassa battente 2. Con i riferimenti 3 e 4 sono indicati i nastri di comando degli organi di trasporto della trama, indicati a loro volta di riferimenti 5 e 6.As can be seen from the drawing, the shuttleless weaving loom according to the invention comprises a reed 1 emerging from a beating case 2. The reference numbers 3 and 4 indicate the control belts of the weft transport members, indicated in turn of references 5 and 6. Nel caso della forma di esecuzione di figg. 1 e 2 i nastri 3 e 4 corrono paralleli ed accostati al pettine 1 che fa per essi da guida su una delle facce più estese, l'altra di queste facce essendo guidata a sua volta da una serie di piolini 7 emergenti parallelamente al pettine dalla cassa battente 2. In questo caso gli organi di trasporto 5 e 6 sono fissati ai nastri 3 e 4 vicino al fianco di questi opposto a quello prossimo alla cassa battente, cosi da disporsi a cavaliere dei piolini 7 e possono poggiare con il loro fianco inferiore sulla cassa battente 2 come avviene per i nastri o essere sospesi.In the case of the embodiment of figs. 1 and 2, the belts 3 and 4 run parallel and approached to the comb 1 which acts as a guide for them on one of the wider faces, the other of these faces being guided in turn by a series of pins 7 emerging parallel to the comb from the swing box 2. In this case the transport members 5 and 6 are fixed to the belts 3 and 4 near the side of these opposite to the one next to the swing box, so as to straddle the pins 7 and can rest with their lower side on the case 2 as it happens for the tapes or to be suspended. Nella forma di esecuzione di fig. 3 si è preferito ottenere una guida del tutto autonoma dei nastri 3 e 4: in questo caso sono stati perciò previsti elementi di guida a gancio 8 emergenti dalla cassa battente parallelamente al pettine 1. Entro questi elementi di guida 8 vengono guidati i nastri 3 e 4 che portano a sbalzo gli organi di trasporto 5 e 6.In the embodiment of FIG. 3 it was preferred to obtain a completely autonomous guide of the ribbons 3 and 4: in this case hook guide elements 8 were therefore provided emerging from the beating case parallel to the comb 1. Within these guide elements 8 the ribbons 3 and 4 which cantilever the transport members 5 and 6. Con la disposizione secondo l'invenzione l'ingombro trasversale dell'insieme degli organi di trasporto e dei nastri che li comandano viene spostato tutto a ridosso del pettine, in corrispondenza della zona più ampia della bocca di ordito liberando così le falde di ordito in modo totale o parziale dalle sollecitazioni che ad esso provengono, nei telai convenzionali, dalla presenza delle guide per i nastri e dai movimenti e dalla presenza dei nastri stessi e degli organi trasporto, i quali si estendono come è noto ad ingombrare una zona assai più estesa della bocca di ordito, fin nella sua parte più stretta.With the arrangement according to the invention, the transversal bulk of the assembly of the transport members and of the ribbons which control them is moved entirely close to the reed, in correspondence with the widest area of the warp shed, thus freeing the warp layers in such a way total or partial by the stresses that it receives, in conventional looms, from the presence of the guides for the belts and from the movements and from the presence of the belts themselves and the transport members, which extend, as is known, to clutter up a much larger area than the warp mouth, down to its narrowest part. Si ha anche l'ulteriore vantaggio che disponendo parallele e vicine al pettine le guide per i nastri, la costruzione ed il montaggio di esse non incontrano più le limitazioni cui occorreva sottostare nel caso dei telai convenzionali per evitare le pericolose sollecitazioni e le tranciature (specie in presenza di nodi) dei fili di ordito. Queste guide possono essere perciò costruite e disposte nel modo più facile, razionale ed efficace, con vantaggi anche economici.There is also the further advantage that by arranging the guides for the strips parallel and close to the comb, their construction and assembly no longer encounter the limitations which it was necessary to submit to in the case of conventional looms to avoid dangerous stresses and shearing (especially in the presence of knots) of the warp threads. These guides can therefore be constructed and arranged in the easiest, most rational and most effective way, with also economic advantages. Il trovato può essere realizzato anche secondo forme di esecuzione diverse da quelle descritte ed illustrate senza sortire per questo dall'ambito dell'invenzione.The invention can also be implemented according to embodiments other than those described and illustrated without thereby falling within the scope of the invention. 2525 3030 3535 4040 vv 1 foglio disegni1 drawing sheet
CH710177A 1977-06-09 1977-06-09 Shuttleless loom with two transport members which exchange the weft at the centre of the pass CH616970A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH710177A CH616970A5 (en) 1977-06-09 1977-06-09 Shuttleless loom with two transport members which exchange the weft at the centre of the pass
IT23875/78A IT1095840B (en) 1977-06-09 1978-05-26 WEAVING FRAME WITHOUT SHUTTLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH710177A CH616970A5 (en) 1977-06-09 1977-06-09 Shuttleless loom with two transport members which exchange the weft at the centre of the pass

Publications (1)

Publication Number Publication Date
CH616970A5 true CH616970A5 (en) 1980-04-30

Family

ID=4319964

Family Applications (1)

Application Number Title Priority Date Filing Date
CH710177A CH616970A5 (en) 1977-06-09 1977-06-09 Shuttleless loom with two transport members which exchange the weft at the centre of the pass

Country Status (2)

Country Link
CH (1) CH616970A5 (en)
IT (1) IT1095840B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0275479A1 (en) * 1986-12-23 1988-07-27 VAMATEX S.p.A. Means to guide the motion of a pair of weft carrying grippers inside the shed of weaving looms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0275479A1 (en) * 1986-12-23 1988-07-27 VAMATEX S.p.A. Means to guide the motion of a pair of weft carrying grippers inside the shed of weaving looms

Also Published As

Publication number Publication date
IT1095840B (en) 1985-08-17
IT7823875A0 (en) 1978-05-26

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