EP0352223B1 - Dispositif d'insertion de trame d'un métier à tisser à pinces - Google Patents
Dispositif d'insertion de trame d'un métier à tisser à pinces Download PDFInfo
- Publication number
- EP0352223B1 EP0352223B1 EP89810489A EP89810489A EP0352223B1 EP 0352223 B1 EP0352223 B1 EP 0352223B1 EP 89810489 A EP89810489 A EP 89810489A EP 89810489 A EP89810489 A EP 89810489A EP 0352223 B1 EP0352223 B1 EP 0352223B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- belt
- picking
- mechanism according
- picking belt
- entry
- 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.)
- Expired - Lifetime
Links
- 238000003780 insertion Methods 0.000 title description 10
- 230000037431 insertion Effects 0.000 title description 10
- 239000000835 fiber Substances 0.000 claims description 34
- 239000004033 plastic Substances 0.000 claims description 19
- 229920003023 plastic Polymers 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 16
- 238000009941 weaving Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
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
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/275—Drive mechanisms
- D03D47/276—Details or arrangement of sprocket wheels
-
- 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
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/271—Rapiers
- D03D47/272—Rapier bands
-
- 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
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/277—Guide mechanisms
Definitions
- the invention relates to a weft insertion device of a rapier weaving machine, with a flexible entry belt which can be wound up and unwound with one end on an oscillating driven belt wheel and at the other, free end with a rapier head for inserting weft threads into a shed of the weaving machine and which is connected to a cross section that is constant over at least most of its length and is made of a fiber-reinforced plastic.
- Previous entry belts of this type are each formed, for example, by a strip of a plastic plate which is reinforced by a layer of bundled fibers which cross in the longitudinal and transverse directions and extend over their entire length and width. For the production of the entry belts, these strips are punched out of the plate and then ground at the interfaces. This requires a relatively large amount of processing.
- the plastic layer surrounding the fiber bundle particularly in the interfaces of the transverse fiber strands located at the lateral edge areas of the entry band, can expose fiber ends at which warp threads can get caught when the entry band passes through the weaving shed, resulting in fabric defects can.
- a gripper bar in the form of a plastic band is known from DE-A-30 42 054, which has a toothed part formed by hole-like cutouts of the plastic band, into which a drive pinion engages.
- the toothing part is reinforced by fiber strands guided around the cutouts in a wave-like manner and by fiber strands running along the lateral boundaries of the plastic band.
- the gripper bar only the relatively narrow lateral edge areas are available for the arrangement of the fiber strands effective for stiffening, so that there is a risk that parts of the fiber strands will be exposed when these edge areas are worn.
- the invention has for its object to provide a weft insertion device of the type mentioned improved in particular in this regard, by which escape of the fiber bundle disruptive parts of the fiber bundle from the entry belt is reliably prevented.
- the embodiment according to the invention enables production which is considerably simplified compared to previous embodiments and also a substantial increase in the operating time of the entry belt, as a result of which the downtimes of the weaving machine required for the replacement of the entry belt are correspondingly reduced.
- FIG. 1 shows parts of a machine frame 1 and a sley 2 of a belt rapier weaving machine of known construction.
- the machine frame 1 contains on the left side and on the right side a supporting part 3, on which a belt wheel 5 of the weft insertion device is rotatably arranged.
- a belt wheel 5 of the weft insertion device is rotatably arranged.
- Fig. 1 only the left side of the machine frame 1 is shown with the support part 3 arranged in mirror image to the right carrier and the belt wheel 5 arranged in mirror image to the right belt wheel.
- a reed 6 is fastened, through which warp threads 7 and 8 are passed.
- one end 10a of a flexible entry belt 10 is fastened by means of a clamping piece 9, which is connected at the other, free end 10b to a gripper head 11 which is intended for gripping an end 12a of a weft thread 12.
- a corresponding entry belt also provided with a gripper head, is attached to the right belt wheel.
- the two belt wheels 5 are each driven oscillatingly and in opposite directions, the gripper heads 11 each being given a corresponding movement into or out of the shed 13 formed by the warp threads 7 and 8.
- the rapier heads 11 are moved along the sley 2 to the middle of the shed 13 and then pulled out of it again.
- Weft thread supply in each case the end 12a of the weft thread 12 is transferred to the rapier head arranged on the right entry belt. From this, the weft thread 12 is inserted into the first half of the shed 13 and transferred in the middle of the shed 13 to the rapier head 11 arranged on the left entry belt 10, through which the weft thread 12 is then inserted into the second half of the shed 13. After the weft insertion has been completed, the weft thread 12 is struck against the fabric 14 by the weaving blade 6 in the tip of the shed 13.
- the weft insertion device can also have a single belt wheel 5 and a single entry belt 10 that can be guided from one side of the loom over the entire width of the weaving machine and back, the gripper head of which accordingly carries out a complete weft insertion.
- the gripper head 11 is guided by the entry belt 10, which is moved when unwinding from the band wheel 5 according to arrow 15, from the operating position shown in FIG. 1 and located outside the shed 13 against the center of the shed 13 and then by winding up the entry band 10 to the belt wheel 5, returned to the illustrated operating position according to arrow 15a.
- the rapier head 11 is guided against the center of the shed 13 and back for a new weft insertion. In the operating position shown in Fig.
- the entry belt 10 is wound with a wrap angle of more than 360 °, for example 460 °, on the circumference of the belt wheel 5 and from the unwinding point 16 on the belt wheel 5 in a straight longitudinal section against a guide rail 17 a guide track 18 provided on the sley 2.
- the part of the entry belt 10 located on the belt wheel 5 is wrapped by a pressure belt 20, by means of which the entry belt 10 is prevented from being lifted off.
- the pressure belt 20 is fastened at one end, together with the end 10a of the entry belt 10, by the clamping piece 9 in a first looping area 5a to the circumference of the belt wheel 5 and via two deflection rollers 21, 22 against one on the circumference of the belt wheel 5, next to the first looping area 5a provided second loop area 5b for the entry belt 20 out.
- the pressure belt 20 is - with the entry belt 10 wound up as shown - with a wrap angle of more than 360 °, e.g. 620 °, guided over the circumference of the band wheel 5 and fastened to it by a clamping piece 23.
- This arrangement which is not the subject of the present invention, is described in more detail in EP patent application 053 184 (T.716).
- the entry belt 10 is designed in a length section A that can be wound onto the band wheel 5 with a basic cross section determined by a rectangular outline and in an adjoining end section B is provided with a web-like elevation 10d which, with a flange section 10c determined by the basic cross section, has an essentially T- shaped cross section.
- This stretched end section B also remains with the entry belt 10 completely withdrawn from the shed 13 - and accordingly fully wound band wheel 5 according to FIG. 1 - between the unwinding point 16 and the shed 13.
- the entry belt 10 is formed from a profile part with a T-shaped cross-section that was originally constant over its entire length, with a dash-dotted line shown in FIG. 2 extending over the length section A of the entry belt 10 Section 10d 'of the elevation 10d except for the flange portion 10c removed, for example, has been cut off.
- This embodiment allows the use of a profile part produced by a continuous manufacturing process, for example by drawing, casting and / or pressing, in particular by pultrusion.
- the entry belt 10 is made of a fiber 24, e.g. Carbon, glass or Kevlar fibers, reinforced plastic part formed, e.g. can be made from an epoxy or phenolic mass.
- the fibers 24 are, as indicated in Fig. 2a, to threads 25 running in the longitudinal direction of the entry belt 10 or to corresponding, e.g. Strand or bundle-like fiber groups are combined, which form a band-shaped insert 27 which penetrates the entry belt 10 over its entire length, the width and thickness of which are smaller than the width C or the thickness T of the basic cross section of the entry belt 10.
- the threads 25 or fiber groups running in the longitudinal direction can be surrounded by a fleece 26 formed from the fibers 24.
- the insert 27 thus formed passes through the entry belt 10 over its entire length within an inner cross-sectional area 28, which is surrounded on all sides by an outer cross-sectional area 29 of the entry belt 10 formed by a layer of the plastic of the entry belt 10 and free of the fibers 24 of the insert 27.
- the elevation 10d extending over the end section B of the entry belt 10 is formed by a corresponding web-like extension of this outer cross-sectional area 29.
- the bundle can be exposed by the outer cross-sectional area 29 free of fiber groups, the thickness D or E of which can be selected according to the abrasion of the input belt 10 that occurs during operation Fibers are avoided, so that the period of use of the entry belt 10 is increased accordingly and the downtimes of the weaving machine can accordingly be reduced accordingly.
- the elevation 10d can be of any width, for example 1/3 to 1/10 of the width of the entry belt 10.
- the infeed belt 10 shown in FIGS. 5 and 6 contains, as an insert 27, a strip of a fabric 31 formed from the threads 25 or fiber groups.
- the elevation 10d is provided with a stiffening girder 32 which extends over its longitudinal extent and which cross-sectionally extends from all sides Plastic of the entry belt is surrounded and as shown by an example can be formed from a correspondingly harder plastic tube.
- the entry belt 10 according to FIGS. 7 and 8 has, as an insert 27, a belt 33 woven from the threads 25 or thread groups and is provided in its end section B with two elevations 10d running along the lateral edges, which have the same or different heights as shown can be executed.
- the insert 27 is formed by threads 25 or fiber groups running in the longitudinal direction, which are arranged in a thread winding 35 surrounding them in a helical manner.
- two elevations 10d with a triangular cross section are provided in the end section B of the entry belt 10, the greatest width of which, as shown, is approximately 1/3 of the width of the entry belt 10.
- the threads 25 of a thread winding 35 'formed of several layers or of one be surrounded by a corresponding tubular casing, which can be formed, for example, by a mesh, a knitted fabric, a knitted fabric or a woven fabric, or by a fleece.
- FIG. 11 shows a part of the belt wheel 5 with the entry belt 10 which wraps around the entire circumference in the operating position shown, which in turn is wrapped by the pressure belt 20 and has a further wrap angle of e.g. 100 ° of a second layer 10 'of the entry belt 10 and a second layer 20' of the pressure belt 20 is wound.
- FIG. 11 also shows two winding layers of the pressure belt 20 wound in the second wrap area 5b of the band wheel 5.
- the insert 27 of the entry belt 10 contains a number of threads or fiber strands 37 running in the longitudinal direction, which over their entire length lie between two layers of threads or corresponding fiber strands 38 and 32 arranged in the inner cross-sectional area 28 39 are arranged.
- FIG. 14 shows the end section B of the entry belt 10 guided in the guide rail 17 with the elevation 10d projecting from the outer cross-sectional area 29.
- the belt wheel 5 is wrapped by an entry belt 40, which is wound over by a layer 40 'of the entry belt 40 in the circumferential region shown.
- the entry belt 40 is designed on its upper side facing away from the running surface 41 with a groove-like recess 42 running over its length, the width and depth of which are at least the width or the thickness of the brace against the entry belt 40 Press belt 20 correspond.
- the insert 27 is formed by the fiber strands 37 and 39 running over the entire width of the inner cross-sectional area 28 and by two layers of transversely arranged fiber strands 38a, which the edge portions 43 of the entry belt 40 running on both sides of the recess 42 each in the unreinforced Push through the inner cross-sectional area 28 surrounding the plastic material.
- the second layer 40 'of the entry belt 40 with its edge parts 43 can be placed directly on the edge parts 43 of the section of the entry belt 40 which directly wraps around the belt wheel 5, thereby ensuring that this second layer 40' is secured against slipping sideways becomes.
- the elevation 10d extending over the end section B of the entry belt 40 is arranged in the recess 42, projecting from the base thereof.
- the depression 42 receiving the pressure belt 20 can also be formed on the running surface 41 facing the belt wheel 5 of an entry belt 44 which can be overwound by a second layer 44 ', the elevation 10d in the end section B on the depression 42 bridging cross-sectional area of the entry belt 44 is formed.
- 17 can be designed with two elevations 10d running over its end section B or, according to FIG. 18, with a single elevation 10d protruding from one of the lateral edge parts.
- the entry band 45 which, in addition to the central recess 42 formed on its upper side, has two recesses 42 formed on the running side 41 along the lateral edges of the Entry tape 45 extending recesses 46 is provided.
- the entry band 45 has an approximately wave-like, thin-walled profile, the inner cross-section of which is penetrated by the insert 27 formed in the example shown by the fabric band 33 and correspondingly wave-like in cross-section. In this way, a low-mass design of the entry belt 45 is achieved, which on the one hand ensures high flexibility in the length section A that can be wound onto the band wheel 5 and on the other hand high rigidity in the end section B of the entry belt 45 reinforced by the elevation 10d.
- the entry belt can have a protective layer 48 made of an abrasion-resistant material , for example a lubricating varnish, a corresponding plastic or a cover consisting of a thin metal sheet.
- the protective layer 48 can extend according to FIG. 4 only over the elevation 10d, or according to FIG. 6 over the entire top side facing away from the running surface 41 and the two side surfaces of the entry belt 10. In the embodiments according to FIGS. 8 and 10, the protective layer 48 extends over both elevations 10d and the two lateral surfaces of the entry belt 10. It goes without saying that that in FIGS. 11 to 20 also illustrated entry tapes can each be provided with at least one corresponding protective layer 48.
- An embodiment with a substantially constant cross-section of the entry belt, determined by a rectangular outline, is also possible, whereby the entry belt can be designed with an elevation running over the entire length, within the rectangular outline, or without a corresponding elevation .
- an elevation which can be fastened to the end section B of the entry belt e.g. web-like or otherwise designed reinforcement part or a corresponding holding part for the gripper head.
- entry belts 10 designed according to the invention can also be made from strips of a plastic plate 50 which is reinforced by band-shaped inserts 27 arranged at appropriate intervals from one another.
- the inserts 27 are separated from one another by cross-sectional areas free of fiber groups, through which the interfaces 51 for the production of the entry belts 10 can run.
- the entry belts 10, 44, 45, 47 can also each be reinforced by an additional insert 30, which is formed from a plurality of individual, short fiber pieces 36 distributed at least over a section of the outer cross-sectional area 29.
- the fiber pieces 36 are over the entire outer cross-sectional area 29 and the cross-section of the elevation 10d distributed and embedded in the plastic of the entry belt 10.
- This version is particularly suitable for a weaving operation in which less sensitive warp material is processed, since any individual pieces of fiber 36 of the additional insert 30 exposed by abrasion of the plastic - in contrast to bundled fiber groups - break relatively easily or detach with the rubbed-off plastic leave and accordingly can not cause any significant disruption to the weaving operation when hanging with coarser warp yarns.
- thermoplastics e.g. Polyether ether ketones (PEEK), polyphenylene sulfides (PPS), polyamides (PA), polycarbonates (PC), polyether imides (PEI) and thermoplastic carbon fiber semi-finished products, such as "prepregs", can be used.
- PEEK Polyether ether ketones
- PPS polyphenylene sulfides
- PA polyamides
- PC polycarbonates
- PEI polyether imides
- prepregs thermoplastic carbon fiber semi-finished products
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Claims (13)
- Dispositif d'insertion de la trame d'une machine à tisser à preneurs, comprenant un ruban souple d'insertion (10, 40, 44, 45, 47) qui est fixé par une extrémité (10a), de manière à pouvoir s'enrouler et se dérouler, sur une poulie commandée oscillante (5) et dont l'autre extrémité libre (10b) est reliée à une tête de preneur (11) pour l'insertion de fils de trame (12) dans une foule (13) d'une machine à tisser, ledit ruban d'insertion étant conformé de manière à avoir une section constante au moins sur la majeure partie de sa longueur et étant réalisé en une matière plastique armée de fibres (24), caractérisé en ce que les fibres (24) sont disposées dans une garniture intérieure (27) en bande qui traverse le ruban d'insertion (10, 40, 44, 45, 47) sensiblement sur sa longueur et qui est formée essentiellement de multiples groupes de fibres (25, 37) en forme de nappes et/ou de faisceaux qui sont juxtaposés, dont chacun est constitué d'un assemblage de plusieurs fibres individuelles (24) et qui sont orientés dans la direction de la longueur du ruban d'insertion (10, 40, 44, 45, 47), ladite garniture intérieure étant disposée sur toute son étendue à l'intérieur d'une partie interne (28) de la section du ruban d'insertion (10, 40, 44, 45, 47) qui est entourée de toutes parts par une partie extérieure (29) de la section qui est exempte de fibres (24) de la garniture intérieure (27), qui est formée d'une couche de la matière plastique du ruban d'insertion (10, 40, 44, 45, 47) et dont l'épaisseur (D ou E) est dimensionnable en fonction d'une usure prédéterminée du ruban d'insertion qui se produit en service.
- Dispositif selon la revendication 1, dont le ruban d'insertion (10, 40, 44, 45, 47) contient des fibres (24) orientées transversalement et croisant les groupes de fibres (25, 37) qui sont orientés dans la direction de la longueur, caractérisé en ce que les fibres (24) orientées transversalement sont disposées en au moins une couche de filés ou de groupes de fibres (25, 26, 35, 35', 38, 38a, 39) qui est située aussi à l'intérieur de la partie interne de la section (28), sensiblement sur la longueur du ruban d'insertion (10, 40, 44, 47).
- Dispositif selon la revendication 1 ou 2, caractérisé en ce que le ruban d'insertion (10, 40, 44, 47) est muni d'une garniture intérieure supplémentaire (30) qui est formée de plusieurs morceaux individuels de fibres (36) répartis sur au moins une portion de la partie extérieure (29) de sa section et dont chacun est entouré par la matière plastique du ruban d'insertion (10, 40, 44, 47).
- Dispositif selon l'une des renvendications 1 à 3, caractérisé en ce que le ruban d'insertion (10, 40, 44, 45, 47) est formé d'une pièce profilée réalisée par un processus de fabrication en continu, par exemple par étirage, coulée et/ou pressage, en particulier par pultrusion et ayant une section constante sensiblement sur la totalité de sa longueur.
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que le ruban d'insertion (40, 44, 45, 47) comprend au moins une cavité (42, 46) en forme de rainure orientée dans la direction de sa longueur.
- Dispositif selon la revendication 5, caractérisé en ce que la cavité (42) est réalisée à une largeur et une profondeur qui correspondent au moins à la largeur ou à l'épaisseur d'une bande de serrage (20) destinée à être tendue au-dessus du ruban d'insertion (40, 44, 45, 47) contre la poulie (5).
- Dispositif selon l'une des. revendications précédentes, caractérisé en ce que le ruban d'insertion (10, 40, 44, 45, 47) est réalisé avec au moins une protubérance (10d) se prolongeant au moins sur une partie de sa longueur et saillante sur au moins une portion voisine transversalement de la partie extérieure (29) de la section, ladite protubérance étant formée d'un prolongement correspondant de la partie extérieure (29) de la section qui est orienté dans la direction de la longueur du ruban d'insertion (10, 40, 44, 45, 47).
- Dispositif selon la revendication 7, caractérisé en ce que la protubérance (10d) est disposée dans un tronçon d'extrémité (B) du ruban d'insertion (10, 40, 44, 45, 47) qui est sensiblement rectiligne et qui subsiste, après enroulement maximal sur la poulie (5), entre la zone d'enroulement de la poulie (5) et la foule (13), ce tronçon d'extrémité (B) du ruban d'insertion s'étendant vers la foule (13) à partir d'un lieu (16) de déroulement du ruban d'insertion qui est situé sur la poulie, cette protubérance (10d) étant formée d'un reste, subsistant dans le tronçon correspondant d'extrémité (B), d'une partie (10d') en forme de nervure de la pièce profilée qui se prolongeait initialement sur toute la longueur du ruban d'insertion (10, 40, 44, 45, 47) et qui est enlevée de cette pièce profilée, sur le tronçon (A) de la longueur du ruban d'insertion (10, 40, 44, 45, 47) destiné à s'enrouler sur la poulie (5), jusqu'à une partie de base (10c) en forme de semelle de la pièce profilée qui est déterminée essentiellement par un contour rectangulaire.
- Dispositif selon la revendication 7 ou 8, caractérisé en ce que la protubérance (10d) est munie d'un support de rigidification (32) qui la traverse dans la direction de sa longueur et qui est enveloppé de toutes parts, en coupe transversale, par la matière de la protubérance (10d).
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que le ruban d'insertion (10, 40, 44, 45, 47) est muni d'une couche de protection (48) en matière résistant à l'usure, qui recouvre au moins une portion de la partie extérieure (29) de la section, au moins sur un tronçon d'extrémité (B) qui est dans le prolongement de la tête du preneur (11) et qui entre en contact avec les fils de chaîne (7, 8).
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que la matière plastique du ruban d'insertion (10, 40, 44, 45, 47) est une matière thermoplastique.
- Procédé de production d'un ruban souple d'insertion du dispositif d'insertion de la trame selon l'une des revendications précédentes, caractérisé en ce qu'une pièce profilée est réalisée avec une section constante sur sa longueur par un procédé de fabrication en continu, en particulier par pultrusion, la pièce profilée étant formée d'une semelle en forme de bande (10c) renfermant une garniture intérieure (27) en forme de bande et d'au moins une protubérance (10d) en forme de nervure qui est saillante sur cette semelle, et en ce que cette protubérance (10d) est enlevée de la semelle (10c) jusqu'à une partie résiduelle située sur un tronçon d'extrémité (B) de la pièce profilée.
- Machine à tisser à preneurs équipée d'un dispositif d'insertion de la trame selon l'une des revendications 1 à 11.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2817/88 | 1988-07-22 | ||
CH281788 | 1988-07-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0352223A1 EP0352223A1 (fr) | 1990-01-24 |
EP0352223B1 true EP0352223B1 (fr) | 1993-02-03 |
Family
ID=4242252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89810489A Expired - Lifetime EP0352223B1 (fr) | 1988-07-22 | 1989-06-27 | Dispositif d'insertion de trame d'un métier à tisser à pinces |
Country Status (4)
Country | Link |
---|---|
US (1) | US5035268A (fr) |
EP (1) | EP0352223B1 (fr) |
JP (1) | JPH0268332A (fr) |
DE (1) | DE58903434D1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI83791C (fi) * | 1989-08-24 | 1991-08-26 | Neste Oy | Slitstarkt band och foerfarande foer framstaellning av detta. |
CH682572A5 (de) * | 1991-03-08 | 1993-10-15 | Textilma Ag | Greiferwebmaschine. |
DE59207009D1 (de) * | 1992-06-12 | 1996-10-02 | Rueti Ag Maschf | Greiferwebmaschine |
DE9413172U1 (de) * | 1994-08-16 | 1994-10-13 | Textilma Ag, Hergiswil | Greiferwebmaschine |
BE1009355A6 (nl) * | 1995-05-04 | 1997-02-04 | Picanol Nv | Grijperweefmachine met een grijper en een grijperband. |
IT1290837B1 (it) * | 1996-02-27 | 1998-12-14 | Nuovo Pignone Spa | Testa di nastro perfezionata per telaio tessile a pinze e procedimento per la sua realizzazione |
CN1183489A (zh) * | 1996-11-05 | 1998-06-03 | 株式会社丰田自动织机制作所 | 剑杆织机用载体带及其纤维构造体 |
TW422899B (en) * | 1998-02-18 | 2001-02-21 | Toyoda Automatic Loom Works | Weft insertion apparatus on a rapier loom and rapier band |
BE1015971A6 (nl) | 2004-04-05 | 2005-12-06 | Picanol Nv | Grijperband voor een grijperweefmachine en grijperweefmachine. |
BE1016506A3 (nl) * | 2005-04-25 | 2006-12-05 | Wiele Michel Van De Nv | Inrichting voor het aandrijven van een grjperbeweging in een weefmachine. |
CN102021716A (zh) * | 2010-12-16 | 2011-04-20 | 浙江理工大学 | 剑带柔性加压装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2135057A (en) * | 1936-02-07 | 1938-11-01 | Owens Illinois Glass Co | Fabric belting |
US2425575A (en) * | 1943-01-15 | 1947-08-12 | Wingfoot Corp | Belt |
DE2227335A1 (de) * | 1971-06-11 | 1973-02-15 | Cigala & Bertinetti S A S Di C | Treibriemen und verfahren zu seiner herstellung |
US4010655A (en) * | 1976-01-19 | 1977-03-08 | Ernest Pollard | Drive belting and drive belts manufactured therefrom |
CH596355A5 (fr) * | 1976-07-08 | 1978-03-15 | Rueti Ag Maschf | |
DE3042054C2 (de) * | 1980-11-07 | 1982-10-07 | Lindauer Dornier-Gesellschaft Mbh, 8990 Lindau | Greiferstange für Webmaschinen |
US4678455A (en) * | 1981-07-07 | 1987-07-07 | Dayco Products, Inc. | Method of making a fiber-loaded polymeric sheet |
US4522869A (en) * | 1983-04-05 | 1985-06-11 | Dayco Corporation | Polymeric-coated fabric layer, product utilizing the layer and method of making the same |
BE896771A (nl) * | 1983-05-18 | 1983-11-18 | Picanol Nv | Grijperaandrijving voor weefmachines. |
IT1196136B (it) * | 1984-06-07 | 1988-11-10 | Vamatex Spa | Meccanismo per il comando dei movimenti di organi di inserzione della trama in telai di tessitura senza navette |
US4681558A (en) * | 1985-04-18 | 1987-07-21 | National Standard Company | Reinforced polymeric component and method of manufacture |
IT8521893V0 (it) * | 1985-05-22 | 1985-05-22 | Lamiflex Srl | Struttura di nastro per telai senza navetta. |
DE3527202C1 (de) * | 1985-07-30 | 1986-10-09 | Lindauer Dornier Gmbh, 8990 Lindau | Greiferstange fuer schuetzenlose Webmaschinen |
JPS62199553U (fr) * | 1986-06-09 | 1987-12-18 | ||
JPS6328943A (ja) * | 1986-07-15 | 1988-02-06 | ゲブリユ−ダ− ズルツア− アクチエンゲゼルシヤフト | ベルト・グリッパ式織機の横糸投入装置 |
-
1989
- 1989-06-27 DE DE8989810489T patent/DE58903434D1/de not_active Expired - Fee Related
- 1989-06-27 EP EP89810489A patent/EP0352223B1/fr not_active Expired - Lifetime
- 1989-07-21 JP JP1190356A patent/JPH0268332A/ja active Pending
- 1989-07-21 US US07/384,174 patent/US5035268A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0268332A (ja) | 1990-03-07 |
US5035268A (en) | 1991-07-30 |
EP0352223A1 (fr) | 1990-01-24 |
DE58903434D1 (de) | 1993-03-18 |
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