CN101205656B

CN101205656B - Device for producing knitting fabric

Info

Publication number: CN101205656B
Application number: CN2007101702586A
Authority: CN
Inventors: G·斯塔莱克
Original assignee: Wilhelm Stahlecker GmbH
Current assignee: Wilhelm Stahlecker GmbH
Priority date: 2006-12-22
Filing date: 2007-11-12
Publication date: 2012-10-24
Anticipated expiration: 2027-11-12
Also published as: TW200848564A; KR101393360B1; DE102006062364A1; KR20080059051A; CN101205656A; DE102006062364B4; ITMI20072161A1

Abstract

The present invention provides an knitting apparatus used for producing textile fabric, having knitting needle and at least one looping position, the upstream of each looping position is set with drafting system for drafting fiber strand, a introducing device is set between the drafting system and the looping position, the fiber strand is transported by this way, that is the length of the free, un-transmitted fiber strand is always less than the length of the middle fiber. The introducing device includes a basically fixed introduction set in the looping position, the fiber strand is introduced to knit via this introduction device. A spooler of the fiber strand is set in the drafting system. The introduction set includes at least one introduction device connected with the spooler, set in the downstream of the drafting system.

Description

Be used to produce the equipment of fabric

Technical field

The present invention relates to a kind of equipment fabric, that comprise the knitting device that has knitting needle and at least one knitting position (Strickstelle) that is used to produce; Wherein the upper reaches of each knitting position all are provided with drafting system (Streckwerk) with drawn fiber strand (Faserverband); And between drafting system and knitting position, be provided with the guiding device of fiber strand; Its fiber strand guides like this, and freely promptly, the length of the fiber strand of guiding is not always less than fibre length (mittlere Stapellaenge) between wherein.In this guiding device, the fiber strand is drawn towards knitting needle through guide device in the knitting position, that fix basically.

Background technology

A kind of such device is the prior art among the document WO 2004/079068A2.Wherein fabric is not to produce from the yarn (as common used method the reality) of introducing knitting machine, but directly carries out knitting from fiber strand drafted drafting system.Advantage is because by have fiber strand almost parallel fiber, that do not have a twisted basically carry out knitting, can process have a height flexibility and correspondingly wear the fabric of high comfort.This fabric is cheap, because traditional yarn production program also is that intermediate steps such as resultant yarn, coiling and (if necessary) after-combustion have been omitted.

The fiber strand that is formed by staple fibre (Stapelfaser) just directly is drawn towards the knitting needle of in knitting position, working without twisted.The transmission jaw line (Lieferklemmlinie) and the spacing between the knitting position of drafting system must be less than the median fiber length of fiber strand.In order to guide the fiber strand into knitting needle exactly, in knitting position, be provided with fixing guide device.

Same known ground when drafting system and knitting position have definite space length, is provided with guiding device between drafting system and knitting position, it has comprised twisted device (Dralleinrichtung).Through false-twisting device, the fiber strand can have certain intensity, makes its transmission to knitting position become possibility.Here also be provided with fixing guiding device, the fiber strand is guided into identical position always in the knitting process of knitting needle whereby.When knitting, the constant introducing of fiber strand is very important, and looped pile could form uniform fabric whereby.If the position of guiding device changes on knitting position, then knitting cycle also can change.Different looped piles can cause the uneven outward appearance of fabric.

Because fiber strand bundle of lines fiber strand transmits like this, freely promptly, the length of the fiber strand of transmission is not always less than fibre length between wherein, so the fiber strand need not have the transmission that very high intensity is accomplished to knitting position.The required slight twisted of fiber strand is easy to obtain through air nozzle (Luftduese).If the fiber strand is in knitting device, to be woven into fabric for the first time, the intensity of fabric can guarantee through the winding of the fiber strand in single looped pile.The twisted of fiber strand no longer is essential, and opposite fully, the yarn twisted in the common fabric makes the fabric of processing touch too " firmly " on the contrary.Particularly advantageous is the application of false twisting device, because again in knitting process, need be on knitting position obtain the intensity transmission of fiber strand through twisted.Can also be provided with the auxiliary line of use, elastomer line for example, it is at drafting system introducing fiber strand, with the transmission of Muller's fibers strand from the drafting system to the knitting position, and can also improve the characteristic of made fabric significantly.This method is also referred to as " directly knitting " or " spinning is knitting ".

This transmission speed that is used for the drafting system of knitting equipment is about ten times of transmission speed of conventional ring spinning (Ringspinnen) machine.Some parts of drafting system, for example the elasticity jacket layer of top roller (Oberwalzen) or pilot tape is very easy to wearing and tearing, the surface of must often replacing or reface.

Summary of the invention

The objective of the invention is to, reduce the wearing and tearing of the drafting system that is used for knitting equipment, prolong the service life of the parts in the drafting system.

This purpose realizes like this; Promptly in drafting system, be provided for the network strand device (Changiereinrichtung) of fiber strand; Its traversing gear that is otherwise known as; And guiding device comprises at least one and the guide device that network strand device is connected, and this guide device is arranged on the downstream of drafting system.

Through the network strand of fiber strand in drafting system, top roller and pilot tape are stressed equably on its whole width basically, and make be extended their service life.Directly be connected on transmission jaw line first guide device downstream, guiding device of drafting system,, guaranteed that can reliably and exactly be directed device from the fine fibre strand of drafting system receives and introduce knitting position through twisting being connected of device with network.

In drafting system, carrying out the network strand knows already.The simple network strand of in drafting system, for example in the drafting system that is used for the RING SPINNING loom, carrying out, can't migrate to is used for knitting equipment.In ring spinner, the fiber strand directly carries out spinning twisting in the downstream of drafting system, form the finished product yarn.The finished product yarn has very high intensity and therefore needs guiding hardly.Yarn all only is directed on a few acting thread-carrier up on the ring ingot, reeling, and thread-carrier has the distance relatively large with drafting system.Yarn is not needing guiding on very long length between drafting system and the thread-carrier, this length is the several times of the median fiber length of fiber strand.Through spinning twisting, yarn has enough fastnesses, makes it can be not impaired under the situation that lacks guiding.

Equally, in document DE10258720A1 disclosed in the drafting system of spray wind Weaving device the network strand mode of fiber strand, also inapplicablely be used for knitting equipment existing.In spray wind Weaving device, be provided with network strand device, it is connected with condensers (Verdichter) and spray wind unit drives formula ground that drafting system is furnished with, and yarn gets into the inlet opening of spray wind unit equably thus.When the yarn that in spray wind unit, forms did not receive influencing of network strand device, it did not receive the transmission of guiding ground once more within a large range.The difference of the location that the free transmission of long distance of yarn can the motion of balance network strand causes makes the motion of network strand not cause negative effect to yarn.

Be used for knitting equipment, the fiber strand is twisted as few as possible, to guarantee the flexibility of fabric.Therefore the fiber strand does not have enough intensity, on very big drift, does not receive the transmission of guiding ground.The drift that the fiber strand is not guided, must be always less than the median fiber length of fiber strand.Therefore the guiding device between drafting system and the knitting position must be arranged to like this, and promptly it is included in drafting system downstream network strand formula guide device and the fixing guide device that is located immediately at the knitting position upper reaches.Guiding device is arranged between these two guide devices that move relative to each other that this relative motion can be balanced and the fiber strand still can transmit reliably.

Guiding device preferably includes displaceable and/or rotating guide device, with the relative motion between balance network strand formula guide device and the fixing guide device.Advantageously, guiding device also comprises flexible guide device.

Can be provided with so in an embodiment of the present invention, promptly network strand formula guide device forms through the inlet opening of guiding device, and is attached with twisted device and/or air nozzle, and same going back with network strand device drive-type ground (antriebsmaessig) is connected.Wherein air nozzle can be simple collection cotton spout (Sammelduese) or twisted spout (Drallduese) as required.

In another embodiment, guiding device comprises that at least one is arranged to rotating spin duct (Spinnrohr), and it is connected in network strand device.Spin duct is made up of the tubular leader that extends longitudinally basically, is provided with air nozzle in its front end area (Anfangsbereich) or stub area (Endbereich), so that the fiber strand is carried out false twisting.Be arranged to rotating spin duct and also have such advantage, promptly introduce the fixing guide device in the knitting position to the fiber strand that departs from the transmission jaw line of drafting system in the motion of network strand exactly.

Preferably, guiding device is configured to make the fiber strand can not experience the very big break-in of amplitude.Especially in no guidance field, the fiber strand can be partial to.The fiber strand can also be when starting working or automatically penetrate the drafting system in the guiding device when inserting again except can avoiding the infringement in fabrication processes, and the front end of fiber strand also can get into knitting position automatically.The operation and the use of knitting equipment have been simplified thus greatly.

Description of drawings

More advantage of the present invention and characteristic will provide in the description to exemplifying embodiment hereinafter.Wherein:

Fig. 1 is the side schematic view of equipment of the present invention,

Fig. 2 is the vertical view of equipment shown in Figure 1 along the direction of arrow II.

The specific embodiment

Shown a kind of knitting equipment of spinning that is used among Fig. 1 and Fig. 2, can produce fabric and not have traditional system yarn process consuming time with it.This equipment comprises knitting device 1 (necessary parts), and it can be traditional straight-bar machines or ring spinner (Flach-oderRundstrickmaschine), has only shown the syringe 2 of ring spinner among the figure.Equally also a straight-bar machines can be installed so.Different with general known knitting program, fabric does not produce from the yarn silk of introducing syringe 2, but directly the fiber strand 3 near the drafting system 4 knitting device 1 produces.A drafting system 4 and a fiber strand 3 have only schematically been shown among the figure.Usually have many fiber strands 3 (for example 12-96 thread) and introduce knitting device 1 round the circumference of syringe 2.To every fiber strand 3, all be provided with drafting system 4 separately.Drafting system 4 can be arranged to the form of single drafting system 4 or drafting system group.

Each drafting system 4 all is made up of (Walzenpaar) a plurality of rollers, and its each free

drivable bottom roll

5,7,9,11 and the

top roller

6,8,10,12 that flexibly pushes its () are formed.

Top roller

6,8,12 is provided with flexible jacket layer in known manner in its periphery.The feeding roller that the fiber strand 13 of treating drawing-off is introduced drafting system 4 with the form of rove (Vorgarn) or ribbon (Faserband) is to (Eingangswalzenpaar) 5,6.The ribbon 13 of treating drawing-off by ever-increasing, the drivable roller counter extensioin of rotating speed, obtains desirable fiber number (Feinheit) at the output drawing rollers on to the transmission jaw line 14 of (Ausgangswalzenpaar) 11,12 up to the fiber strand 3 of institute's drawing-off along transmission direction A.For guiding fiber strand 3 in drafting system 4, can

pilot tape

15,16 be set in known manner in to 9,10 at one or more rollers.Different according to the kind of fibrous material to be processed and required drawing-off standard, can with shown in comprise that the drafting system 4 of four roller drafting devices makes an amendment to realize with three roller drafting devices or five roller drafting devices slightly.

For clear expression, in Fig. 2, omitted the

top roller

6,8,10,12 of drafting system 4.The output drawing rollers indicate 11,12 transmission jaw line 14 by a dotted line.Treat 13 the accomplishing drawing-offs and generate the fiber strand 3 of drawing-off of fiber strand of drawing-off at transmission jaw line 14.

The fiber strand 3 of drawing-off then passes through guiding device 17 after transmission jaw line 14, and it guides fiber strand 3 into along transmission direction A the knitting position 18 on the syringe 2 of knitting device 1.The knitting device 1 that comprises the syringe 2 that has knitting needle 19 drives in known manner.Syringe 2 rotates along direction of rotation B, and wherein knitting needle 19 moves up and down in knitting position 18, and in knitting position 18, is woven into fabric to the fiber strand of introducing 3.

In the embodiment that does not show; The output drawing rollers to 11,12 and guiding device 17 between can also be provided with the compacting devices (Verdichtungseinrichtung) of arbitrary structures, its fiber strand 3 of drawing-off carry out aggegation (verdichten) and compression (kompaktieren).Transmission jaw line 14 also can't help to export drawing rollers to 11,12 formation, but is formed by compacting devices.

According to the spacing between drafting system 4 and the knitting position 18, can comprise one or more twisted devices 20 in the guiding device 17, it can have fiber strand 3 to be used to pass the sufficient intensity to knitting position 18.Twisted device 20 can mechanically work through spinner member, perhaps as shown in the figurely forms so that fiber strand 3 is carried out false twisting through air nozzle 21.In the outlet of guiding device 17, be provided with the guide device 22 of basic fixed, its fiber strand 3 is guided the knitting needle 19 in the knitting position 18 that limits in the position into.Term " basic fixed " expression, guide device 22 can be regulated with respect to knitting needle 19 on the position according to the kind of production fabric, but during weaving be fix and its also no longer variation of position.Shown in situation in, this fixing guide device 22 is formed by the outlet opening of air nozzle 21.Alternatively, tubule separately, funnel etc. also can be installed and be used as guide device 22.

The fiber strand 13 that passes drafting system 4 has caused the wearing and tearing of the jacket layer of

top roller

6,8,12 and pilot tape 15,16.Be provided with network strand device 23, it can make fiber strand line 13 along moving perpendicular to direction transmission direction A, shown in the double-head arrow C.Network along direction C twists speed basically less than the transmission speed along transmission direction A.Preferably, network strand motion C is chosen to, and fiber strand 13 reciprocating motion on the whole width of

top roller

6,8,12 and

pilot tape

15,16 makes the upper surface of these parts then to be prolonged their service life thus by even utilization.

Network strand device 23 comprises guiding funnel 24, and it is set directly at the feeding roller to 5,6 upper reaches.The guiding funnel is connected with the drive unit 26 shown in rough through guide rail 25, and can twist direction C reciprocating motion along network.The drive unit 26 of network strand device 23 can comprise own engine, perhaps can connect with feeding bottom roll 5 drivingly.According to the kind of pending fibrous material and the design of drafting system 4, two rollers that can also be in drafting system 4 to 5,6 and 7, be provided with between 8 and more twist the condensers 27 that device 23 is connected, to improve the quality of drawn fiber strand 3 with network.

Guiding device 17 comprises the guide device 28 that is connected with network strand device 23, and it preferably moves along network strand direction C with guiding funnel 24 synchronously.Network strand formula guide device 28 is arranged to have the spacing less than the median fiber length of fiber strand 3 with it after the transmission jaw line 14 of drafting system 4.Guarantee that thus even fiber strand 13 carries out the network strand in 4 in drafting system, fiber strand 3 also can arrive guiding device 17 reliably.Guide device 28 through same network strand has guaranteed that fiber gets into guiding device 17 always in the same way.

This network strand formula guide device 28 can be connected through the drive unit 26 of guide rail 29 with network strand device 23 again.If a plurality of drafting systems 4 located adjacent one another

extend guide rail

25 and 29 with the form setting of drafting system group on whole drafting system group, and a plurality of guiding funnels 24 are set separately on

guide rail

25 and 29 and drafting system 28 can be favourable.Like this, that shared drive unit is set is just enough for the whole network of counter extensioin device group strand device 23.

Network strand formula guide device 28 can have various structure.Preferably, this network strand formula guide device 28 forms through the inlet opening 30 on the guiding device 17.This inlet opening 30 can belong to the air nozzle 31 that forms cotton mouthful of collection.Alternatively, air nozzle 31 also possibly be a twisted device 20, and its fiber strand 3 carries out twisted slightly.In this paper illustrated embodiment, air nozzle 31 is parts of so-called spin duct 32.Spin duct 32 is included in the tubular regional 33 of longitudinal extension after the air nozzle 31, on this zone, only has very low intensive fiber strand 3 and also can be transmitted distance far away relatively.Except leading portion zone as shown in the figure, instead, spin duct 32 also can be provided with air nozzle 31 in its end portion.

Spin duct 32 is fixed in its front end area on the guide rail 29 of network strand device 23, and in its stub area, is contained in movably in the bearing (Lagerung) 34.Bearing 34 is fixed, and is fixed on the machinery mount of knitting device 1 with the mode that does not show in detail.If the air nozzle 31 of spin duct 32 twists the reciprocating words of direction C at the duration of work of network strand device 23 along network, spin duct 32 can rotate around the central point of bearing 34 so.Can displacement slightly in bearing 34 in axial direction for keeping the balance on the length direction, can be provided with to make into spin duct 32.

Guiding device 17 has guaranteed that fiber strand 3 is not only guided between transmission jaw line 14 and network strand formula guide device 28 and in the very short zone between spin duct 32 and the air nozzle 21.This zone that is not guided is significantly smaller than the median fiber length of fiber strand 3, makes unstrengthened fiber strand 3 in this zone, to transmit and does not receive negative effect.In this guiding device 17, the relative motion between network strand formula guide device 28 and the fixing guide device 22 does not hinder 3 transmission of fiber strand line yet.

Do not show, in the embodiments of the invention, the relative motion between balance network strand formula guide device 28 and the fixing guide device 22 can also be provided with flexible guide device.This flexible drafting system can (for example) be provided with like this, and promptly spin duct 32 is formed by elastomeric material in tubular regional 33 at it.Spin duct 32 can (for example) directly be connected with the air nozzle 31 of fixed-site in this case, like this fiber strand 3 just can be not the transmission between network strand formula guide device 28 and fixing guide device 22 interruptedly.The balance of relative motion then realizes through tubular regional 33 elastomeric material of spin duct 32.

Claims

1. equipment that is used to produce fabric; It comprises the knitting device (1) that has knitting needle (19) and at least one knitting position (18); Wherein all be provided with the drafting system (4) that is used for drawn fiber strand (13) at each knitting position (18) upper reaches, and between said drafting system (4) and said knitting position (18), be provided with the guiding device (17) that is used for fiber strand (3), said guiding device (17) guides fiber strand (3) by this way; That is, make fiber strand (3; 13) freely, the length that do not guided is always less than fibre length between wherein; And the guide device (22) of wherein said fiber strand (3) through basic fixed is drawn towards said knitting needle (19) in said knitting position (18); It is characterized in that, in drafting system (4), be provided with and be used for fiber strand (3; 13) network strand device (23); And said guiding device (17) comprises at least one and the guide device (28) that said network strand device (23) is connected, and said at least one guide device (28) that is connected with said network strand device (23) is arranged on the downstream of said drafting system (4).

2. equipment according to claim 1 is characterized in that, said guiding device (17) comprises at least one twisted device (20), and it is connected with said network strand device (23).

3. equipment according to claim 1 and 2 is characterized in that, said guiding device (17) comprises at least one air nozzle (31), and it is connected with said network strand device (23).

4. equipment according to claim 1 and 2 is characterized in that, said guiding device (17) comprises at least one flexible guide device.

5. equipment according to claim 2 is characterized in that, said guiding device (17) comprises that at least one is arranged to rotating spin duct (32), and it is connected with said network strand device (23).

6. equipment according to claim 1 and 2 is characterized in that, the guide device (28) that is connected with said network strand device (23) forms through the inlet opening (30) on the guiding device (17).