CN203890587U - Opening weft guide mechanism applicable to weaving of multi-layer fabric - Google Patents
Opening weft guide mechanism applicable to weaving of multi-layer fabric Download PDFInfo
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- CN203890587U CN203890587U CN201420142687.8U CN201420142687U CN203890587U CN 203890587 U CN203890587 U CN 203890587U CN 201420142687 U CN201420142687 U CN 201420142687U CN 203890587 U CN203890587 U CN 203890587U
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- heald frame
- opening
- pedal
- weaving
- weft guide
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Abstract
The utility model relates to a weaving machine for weaving of multi-layer fabrics, and in particular relates to an opening weft guide mechanism applicable to weaving of a multi-layer fabric, belonging to the technical field of weaving machines. The opening weft guide mechanism comprises heald frames, an opening device and a weft guide device in a weaving machine, wherein the opening device consists of more than two layering rollers and two rhombus lifting mechanisms. The opening weft guide mechanism has the advantages that the more the hinging points of the lifting opening mechanism consisting of multiple groups of movable hinges are, the larger the layer number is, the layer number of the fabric can be increased, and the thickness of the fabric is increased, by adopting the rhombus lifting mechanism, the page number of the heald frames can be reduced, and the variety of the multi-layer fabric is expanded; the lifting opening mechanism and the weft guide mechanism cooperate and are linked with each other, the opening acts once when every one weft is guided, the weft guide mechanism can move vertically in the vertical direction, meanwhile the vertical displacement of the lifting mechanism can be adjusted through rotation amplitude of a main shaft, and the bending, corrosion or breakage of warp yarn can be avoided.
Description
Technical field
The utility model relates to a kind of woven opening weft insertion device of multiply cloth that is applicable to, be specifically related to a kind of for the production of thickness the loom opening weft insertion device at more than ten millimeters multiply cloths, belong to technical field of textile machine.
Background technology
?fibre reinforced composites have significant physics, calorifics and mechanical property advantage, make it in a lot of application, can replace metal, and special in the occasion that loss of weight is had relatively high expectations, this advantage is more obvious.Fortifying fibre in composite is continuous fibers rather than particulate or whisker normally; and continuous fiber composite material is realized with two-dimensional layered structure traditionally; its fiber alignment is (XY face) in the plane of material, but a notable feature of two-dimensional layer pressing plate is there is no fiber alignment on thickness direction (Z-direction).This has just caused this kind of composite from the inferior position of the aspects such as cost, manufacturability and mechanical property and impact injury tolerance limit.Since later 1960s, the multiple fibre reinforced composites (material that has mixed Z-direction fiber) with three-dimensional structure have developed, and its appearance can effectively overcome the defect of above-mentioned conventional two-dimensional laminated board.By the woven technology in textile technology, can provide for composite the base material of this class formation.And both at home and abroad some scientific worker with regard to the preparation of this class formation fabric, several different methods was proposed.A kind of weaving principle of this type of multiply cloth has been proposed in the United States Patent (USP) on May 11st, 1976 (US Patent 3955602) < < Apparatus for fabricating three-dimensional fabric material > >, after 20 years, be also that United States Patent (USP) (US5465760) the < < Multi-layer three-dimensional fabric and method for producing > > in November 14 nineteen ninety-five is along having held its design principle.The something in common that their multiply cloth is weaved equipment is: warp thread all aloft vertical hanging be arranged in column construction, and other two cover yarns are introduced warp thread mutual vertically, are interweaved to arrange and form cancellated multiply cloth in space.In United States Patent (USP) (US Patent 3955602), proposing clearly provides other two cover warp thread by the mode of the bobbin cradle warp let-off; In United States Patent (USP) (US5465760), warp thread is to back off from movable bobbin top, through be arranged in the tubulose arrow shaft unit group of array by required shape of cross section, other two cover yarns are passing between warp thread by means of shank, then these yarns are locked on a certain position, form selvedge, fabric from top to bottom forms.In these two patents, be multilayer opening and multilayer wefting insertion during formation of fabrics, but in document, do not point out clearly that multilayer warp thread carries out opening with which kind of mechanism, does not illustrate the filling insertion way of weft yarn yet.The technical report of 1971 (Technical Report AFML TR 70 28.3, Stover et al., Mar. 1971) a kind of method of direct weaving three-dimensional fabric is proposed in, point out, with porous eyes plate, warp thread is carried out to layering, and coordinate six projectile shuttles in multiple-shed, to carry out wefting insertion simultaneously.The weak point of this method is that the position of weft insertion device and quantity are all limited, and cannot make the multiply cloth of unnecessary seven layers.
Want weaving multiple layer fabric, itself and topmost not being both of traditional woven need multilayer warp thread.Fabric layers is more also means that independently warp thread is also more, and these warp thread all need to send into loom, according to fabric construction, does regular elevating movement and forms multiply cloth.But in most cases, the warp thread of this every one deck only plays the effect that yarn is provided on thickness direction, not actual participation and weft yarn interweave, and therefore this every one deck yarn are penetrated respectively in every one page heald frame and will greatly consume the number of pages of heald frame, and limited greatly the thickness of institute's woven fabric.For example: the logical Rapier looms heald frame number of a Daepori is conventionally at 16-24 page.If need to make thickness at the fine multiply cloth of more than 10 millimeters 3k carbon, the number of plies of fabric is minimum will reach 26 layers.For opening is clear, can normally carry out wefting insertion, every one deck of these 26 layers of warp thread must be penetrated to one page heald frame, need take so altogether 26 pages of heald frames, not consider the existence of attachment warp, surpassed the maximum heald frame number that loom can provide, made to weave and cannot complete.Therefore adopt traditional elevating mechanism (being heald frame) to limit the flexibility of multiply cloth design.The multiply cloth that is used for composite due to great majority is all to weave by high performance yarns (carbon fiber, glass fibre, ceramic fibre etc.), yarn is by after heddle eyelet, in lifting process, being easily subject to friction generation scrapes hair and fractures, cause broken yarn phenomenon frequent, therefore need new elevating mechanism to substitute former heald frame carrying layering warp thread.In newly-designed elevating mechanism, the layering roller of carrying warp thread can adopt for example ganoid material of this class of polytetrafluoroethylene (PTFE) to make, to reduce warp thread and inter-agency friction.
At present only have weave/frame of several enterprise to develop the weaving and knitting preparation of multiply cloth both at home and abroad, the weaving and knitting preparation for multiply cloth of list marketing does not yet occur, due to the reason in design and mechanism, can provide multiply cloth but thickness is subject to the enterprise of limitation (lower than 15 millimeters) mainly contains the 3Tex company of the U.S. and domestic Ji Jia enterprise, for example the magnificent material in Jiangsu Tian Niao group and Suzhou east.At present this class corporate boss will adopt the direct warp let-off of bobbin cradle to be fixed layering roller frame warp thread is carried out to layering, aspect weft insertion device, adopt many arrow shafts to carry out wefting insertion simultaneously, because the quantity of arrow shaft is limited to, therefore the woven multiply cloth thickness of is limited.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of thickness knitted and varietal adaptation applicable to the woven opening weft insertion device of multiply cloth, raising multiply cloth is provided.
To achieve these goals, the utility model is achieved by following technical proposals.
A kind of woven opening weft insertion device of multiply cloth that is applicable to, comprise the heald frame in loom, shedding motion and weft inserting apparatus, described shedding motion forms with higher slice roller and two rhombus elevating mechanisms by two, layering roller is arranged in parallel and lays respectively between two rhombus elevating mechanisms, layering roller two ends are connected on rhombus elevating mechanism node, rhombus elevating mechanism upper end is fixed on fixed roll, front page heald frame and rear page heald frame are parallel to each other, shedding motion is positioned at the rear of rear page heald frame, rhombus elevating mechanism and front page heald frame and rear page heald frame below are provided with pedal gear, the layering roller of rhombus elevating mechanism lower end is fixed on long pedal one end of pedal gear, the lower end of front page heald frame is fixed on long pedal, the lower end of rear page heald frame is fixed on the short pedal of pedal gear.
Described weft inserting apparatus is by toggle, main shaft, asessory shaft, screw traction installation composition, weft inserting apparatus is positioned at the place ahead of front page heald frame, asessory shaft one end is fixedly connected on the crank of toggle, the other end of asessory shaft is connected by angular wheel with one end of main shaft, main shaft is parallel to layering roller, main shaft is provided with cam, the outer contour of cam contacts with short pedal in the long pedal of pedal gear, screw traction device is by guide rail, slide block, connecting rod, guide block and threaded rod form, threaded rod one end spinning is in guide block, guide block is fixedly connected on connecting rod tail end, connecting rod one end is fixed on guide block, the other end is connected on slide block, slide block is to be placed in actively track, track is positioned at threaded rod top, and perpendicular to the axis of threaded rod.
Owing to having adopted above technical scheme, compared with prior art, the utility model has the advantages that:
(1) by many groups, be movably hinged the lifting shedding mechanism forming, pin joint is more, and the number of plies is more.The multilayer warp thread that open loop system adopts is opening simultaneously, often opens once mouthful a plurality of shed opens of feasible one-tenth, and shed open is clear, favourable wefting insertion;
(2) by many layering rollers, be arranged in parallel up and down and carry successively warp thread, can save comprehensive number of pages like this, expanded the kind of multiply cloth.Elevating mechanism of the present utility model can not take heald frame number of pages by layered warps, by heald frame to greatest extent for attachment warp, so not only can produce attachment warp ' layer and layer ' access node multiply cloth that the multiply cloth of penetration type can also produce that attachment warp is bound between different layers from top to bottom, greatly improve the design diversity of multiply cloth; Again because this elevating mechanism has been saved heald frame, unnecessary heald frame also can continue to bear layering warp thread simultaneously, and this is improving the number of plies that can knit virtually, has increased the thickness of fabric;
(3) lifting shedding mechanism and the weft insertion device interlock that cooperatively interacts, often draws a weft yarn, and mouth-opening action completes once.Can realize like this weft insertion device moving up and down in the vertical direction, complete smoothly wefting insertion action each time;
(4) upper and lower displacement of elevating mechanism can regulate by the rotation amplitude of main shaft.Can guarantee the position suitable of weft insertion device like this, at the opening part of every one deck warp thread, accurately introduce, thereby the opening amplitude of warp thread need not be too large, avoid the bending wearing and tearing that cause warp thread to fracture.
The utility model is reasonable in design, simple in structure, easy to use, is suitable for having shuttle and Rapier looms.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of weft insertion device.
Fig. 3 is toggle structural representation.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, sees accompanying drawing.
A kind of woven opening weft insertion device of multiply cloth that is applicable to, comprise heald frame, shedding motion and weft inserting apparatus in loom, described shedding motion forms with higher slice roller 2 and two rhombus elevating mechanisms 3 by two, can decide according to institute's woven fabric thickness the quantity of layering roller 2, rhombus elevating mechanism 3 is by bolt, nut and the hinged integrated model forming of pad by steel disc.Layering roller 2 is arranged in parallel and lays respectively between two rhombus elevating mechanisms 3, on each root layering roller 2, will carry respectively the warp thread of every one deck, forms a plurality of shed opens when an opening of rhombus elevating mechanism 3.Layering roller 2 two ends are connected on rhombus elevating mechanism node, and the quantity of layering roller 2 has determined the hinged quantity of rhombus elevating mechanism 3, by the bolt on the screwed hole on layering roller 2 and rhombus elevating mechanism 3, are formed by connecting.Rhombus elevating mechanism 3 upper ends are fixed on fixed roll 1, front page heald frame 19 and rear page heald frame 6 are parallel to each other, shedding motion is positioned at the rear of rear page heald frame 6, rhombus elevating mechanism 3 and front page heald frame 19 and rear page heald frame 6 belows are provided with pedal gear, the layering roller 2 of rhombus elevating mechanism 3 lower ends is fixed on long pedal 7 one end of pedal gear, the lower end of front page heald frame 19 is fixed on long pedal 7, the lower end of rear page heald frame 6 is fixed on the short pedal 8 of pedal gear, along with moving up and down of long pedal 7 driven separating of rhombus elevating mechanism 3 and closed.
Described weft inserting apparatus is by toggle, main shaft 10, asessory shaft 18, screw traction installation composition, weft inserting apparatus is positioned at the place ahead of front page heald frame 19, asessory shaft 18 one end are fixedly connected on the crank 12 of toggle, the other end of asessory shaft 18 is connected by angular wheel with one end of main shaft 10, and the rotation of main shaft 10 will be passed to rotation and asessory shaft 18 by bevel gear 11.The motion that the rotation of asessory shaft 18 is toggle provides power.Main shaft 10 is parallel to layering roller 2, and main shaft 10 is provided with cam 9, and the outer contour of cam 9 contacts with short pedal 8 in the long pedal 7 of pedal gear.Screw traction device is comprised of guide rail 16, slide block 15, connecting rod 20, guide block 17 and threaded rod 14, threaded rod 14 one end spinnings are in guide block 17, guide block 17 is fixedly connected on connecting rod 13 tail ends, connecting rod 20 one end are fixed on guide block 17, the other end is connected on slide block 15, slide block 15 is to be placed in actively track 16, and track 16 is positioned at threaded rod 14 tops, and perpendicular to the axis of threaded rod 14.
Pedal gear is controlled by cam 9, and main shaft 10 connects motor, when main shaft 10 1 rotates, has driven the rotation of cam 9, and the outer contour compressing pedal 7 of cam 9, makes pedal 7 form the vertical space translation of alternatively up and down.Front page heald frame 19 with the upper end of rear page heald frame 6 by being connected harness threading winch 4 by rope 5 respectively.Before long pedal 7 drives under cam wheel, page heald frame 19 and rhombus elevating mechanism 3 are done synchronous harness motion, after short pedal 8 also drives under the effect of cam, page heald frame 6 is done contrary harness motion with front page heald frame 19, and it is the multiply cloth of plain weave fabric structure that such up-down alternative motion can form surface.
When toggle rotates, promote threaded rod 14 and seesaw, guide block 17 is done relative motion along with the motion of threaded rod 14.Along with the translation of guide block 17, slide block 15 is done the reciprocating motion of rising and declining in track 16, so slide block 15 motion of also rising and declining doing, thereby carries out carrying out wefting insertion at the different height of every one deck, and moving up and down of weft insertion device is achieved.
Claims (1)
1. one kind is applicable to the woven opening weft insertion device of multiply cloth, comprise the heald frame in loom, shedding motion and weft inserting apparatus, it is characterized in that: described shedding motion forms with higher slice roller (2) and two rhombus elevating mechanisms (3) by two, layering roller (2) is arranged in parallel and lays respectively between two rhombus elevating mechanisms (3), layering roller (2) two ends are connected on rhombus elevating mechanism node, rhombus elevating mechanism (3) upper end is fixed on fixed roll (1), front page heald frame (19) and rear page heald frame (6) are parallel to each other, shedding motion is positioned at the rear of rear page heald frame (6), rhombus elevating mechanism (3) and front page heald frame (19) and rear page heald frame (6) below are provided with pedal gear, the layering roller (2) of rhombus elevating mechanism (3) lower end is fixed on long pedal (7) one end of pedal gear, the lower end of front page heald frame (19) is fixed on long pedal (7), the lower end of rear page heald frame (6) is fixed on the short pedal (8) of pedal gear,
Described weft inserting apparatus is by toggle, main shaft (10), asessory shaft (18), screw traction installation composition, weft inserting apparatus is positioned at the place ahead of front page heald frame (19), asessory shaft (18) one end is fixedly connected on the crank (12) of toggle, the other end of asessory shaft (18) is connected by angular wheel with one end of main shaft (10), main shaft (10) is parallel to layering roller (2), main shaft (10) is provided with cam (9), the outer contour of cam (9) contacts with short pedal (8) with the long pedal (7) of pedal gear, screw traction device is by guide rail (16), slide block (15), connecting rod (20), guide block (17) and threaded rod (14) form, threaded rod (14) one end spinning is in guide block (17), guide block (17) is fixedly connected on connecting rod (13) tail end, connecting rod (20) one end is fixed on guide block (17), the other end is connected on slide block (15), slide block (15) is placed in track (16) actively, track (16) is positioned at threaded rod (14) top, and perpendicular to the axis of threaded rod (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420142687.8U CN203890587U (en) | 2014-03-27 | 2014-03-27 | Opening weft guide mechanism applicable to weaving of multi-layer fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420142687.8U CN203890587U (en) | 2014-03-27 | 2014-03-27 | Opening weft guide mechanism applicable to weaving of multi-layer fabric |
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| Publication Number | Publication Date |
|---|---|
| CN203890587U true CN203890587U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420142687.8U Withdrawn - After Issue CN203890587U (en) | 2014-03-27 | 2014-03-27 | Opening weft guide mechanism applicable to weaving of multi-layer fabric |
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| CN (1) | CN203890587U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103849974A (en) * | 2014-03-27 | 2014-06-11 | 武汉纺织大学 | Opening weft insertion mechanism applicable to multilayer fabric weaving |
| CN108588974A (en) * | 2018-04-18 | 2018-09-28 | 江苏工程职业技术学院 | A kind of the Combined spiral Weft inserting device and its method for weaving of variable pitch |
-
2014
- 2014-03-27 CN CN201420142687.8U patent/CN203890587U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103849974A (en) * | 2014-03-27 | 2014-06-11 | 武汉纺织大学 | Opening weft insertion mechanism applicable to multilayer fabric weaving |
| CN103849974B (en) * | 2014-03-27 | 2015-05-13 | 武汉纺织大学 | Opening weft insertion mechanism applicable to multilayer fabric weaving |
| CN108588974A (en) * | 2018-04-18 | 2018-09-28 | 江苏工程职业技术学院 | A kind of the Combined spiral Weft inserting device and its method for weaving of variable pitch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20150513 |
|
| RGAV | Abandon patent right to avoid regrant |