CN101283135B

CN101283135B - Method and device for splicing yarn

Info

Publication number: CN101283135B
Application number: CN2006800376579A
Authority: CN
Inventors: 畠山泰典; 中井健司; 南方胜次
Original assignee: Murata Machinery Ltd; Shima Seiki Mfg Ltd
Current assignee: Murata Machinery Ltd; Shima Seiki Mfg Ltd
Priority date: 2005-10-13
Filing date: 2006-09-27
Publication date: 2013-07-10
Anticipated expiration: 2026-09-27
Also published as: CN101283135A; EP1959042A1; JP4677454B2; EP1959042B1; KR20080057242A; JPWO2007043336A1; KR101222116B1; WO2007043336A1; EP1959042A4

Abstract

Method and device for splicing a yarn fed to the feeder of a knitting machine while being selected out of a plurality of kinds of different yarns of different colors or the like sequentially. Two yarns (Y1, Y4) to be pieced are housed and clamped in a splice nozzle (21) with their yarn ends arranged in the same direction. Before two yarns to be pieced are cut on the yarn end sides, a jet air flow is generated in the splice nozzle and made to act on the yarns in the splice nozzle, thus untwisting the two yarns on the yarn end sides. The yarns are cut and pieced while the jet air flow is acting on the yarns or after the jet air flow acted on the yarns. Since the yarns are pieced before they are cut, the yarn ends do not contract even when elastic yarns are pieced.

Description

Splice method and the device thereof of yarn

Technical field

The yarn feeding device that the present invention relates in the equipment such as loom is supplied with the device of knitting yarn, particularly about as being used among different multiple difference yarn such as color, select any one yarn in order, the technology supplied with to the yarn feeding device of loom on the joint limit is carried out to it and effectively splice method and the device thereof of yarn in the limit at any time.

Background technology

As known, be accompanied by many kindizations of braided fabric, it is very remarkable to decorate variational tendency, therefore people expect to obtain the improvement to loom, particularly about knitting the technique improvement that yarn carries out yarn feeding to the yarn feeding device in the loom, just, in the stage of supplying with to loom before knitting yarn, according to designed in advance braid pattern, select the different yarn of color successively and carry out joint, thereby the yarn behind this joint is automatically supplied to technique improvement in the loom.

In the past, device has as follows been proposed, namely, between different multiple yarn feeding bobbin such as color and loom, yarn selecting arrangement and Yarn connecting device are set, the selection yarn of being selected by the yarn selecting arrangement and the yarn that is made into that is being made into are automatically carried out joint, thereby be made into the device of required color/characteristic.In this device, there is not following such yarn switching device shifter, namely, the loose thread that keeps multiple bobbin in advance, and only discharge a selected selection yarn, then it is imported in the piecing devices, thereby being made at it and in being made into carried out the effective yarn switching device shifter of joint between the yarn.

Patent documentation 1: TOHKEMY 2004-27463 number open communique (summary, Fig. 1～Fig. 6)

Patent documentation 2: Japanese Patent Application 2005-25124 number (summary, Fig. 1～Fig. 3)

Summary of the invention

Therefore, the invention provides aforesaid, as with loom etc. in yarn switching device shifter associated, be used among different multiple difference yarn such as color, select any one yarn in order, the technology supplied with to the yarn feeding device of loom on the joint limit is carried out to it and extremely effectively splice method and the device thereof of yarn in the limit at any time.

The present invention is with regard to reaching above-mentioned purpose, the method of splicing of the yarn that specifically is constructed as follows, accommodate and be clamped in the nozzle of splicing with the state that two loose threads treating joint are put to same direction, before the loose thread side of two one threads for the treatment of joint is cut yarn, in the nozzle of splicing, produce ejection air stream, thereby make ejection air stream act on the interior yarn of nozzle of splicing, the loose thread side of two one threads is carried out backtwisting, and cut after effect has the state of ejection air stream or acts on and cut yarn and joint.

In addition, the Yarn splicing method that technical scheme 1 is put down in writing is quoted in the invention put down in writing of technical scheme 2 in the present invention, it is characterized in that, above-mentionedly treats that two one threads of joint are elastomeric yarn.

In addition, the invention put down in writing of technical scheme 3 has in the present invention constituted a kind of device of splicer of yarn, it comprises the joint nozzle, this joint nozzle possesses with the state that two loose threads treating joint are put to same direction accommodates the accepting hole that this two one thread carries out, the joint nozzle possesses from the direction of intersecting with the yarn accepting hole and sprays compressed-air actuated jet mechanism, and a side of the yarn accepting hole in the joint nozzle possesses the clamping device that two one threads that are housed in this yarn accepting hole are controlled, the opposite side of the yarn accepting hole in the joint nozzle possesses the cutting mechanism of the loose thread side of cutting off two one threads, and jet mechanism and cutting mechanism are provided with timing controlled mechanism, this timing controlled mechanism sprayed compressed air by jet mechanism to two one threads before by cutting mechanism two one threads being cut yarn.

According to splice method and the device thereof that form yarn of the present invention, accommodate and be clamped in the joint nozzle with the state that two loose threads treating joint are put to same direction, before the loose thread side of two one threads of butt joint is cut yarn, in the nozzle of splicing, produce ejection air stream, thereby make ejection air stream act on the interior yarn of nozzle of splicing, the loose thread side of two one threads is carried out backtwisting, and after having the state of this ejection air stream or acting on, effect cuts yarn and joint, when cutting yarn, two one threads are intertwined under the effect of ejection air stream, and can from the joint nozzle, not fly out, can carry out joint reliably.In addition, the yarn of joint will at first be cut yarn when being elastomeric yarn, and the injection by ejection air stream comes joint again, therefore eliminates the problem that loose thread flies out because of contraction when cutting yarn reliably, brings into play very effective function at this aspect.

Description of drawings

Fig. 1 is the simple side view of an example that expression is equipped with the horizontal loom of Yarn twisting device involved in the present invention.

Fig. 2 is the simple stereogram of the concrete configuration example of the yarn switching device shifter in the expression loom etc.

Fig. 3 is the simple stereogram of the details of wanting portion of expression yarn selecting arrangement.

Fig. 4 is the simple stereogram of the details of wanting portion of expression Yarn twisting device.

Fig. 5 is the figure of expression yarn guide rod, and Fig. 5 A is its simple front view, and Fig. 5 B is the right side view among Fig. 5 A, and Fig. 5 C is the I-I line cutaway view among Fig. 5 B.

Fig. 6～Fig. 9 is the figure that describes in proper order during for the action that yarn is selected, and Fig. 6 A-1 and Fig. 6 A-2 are front view and the side views of expression phase I, and Fig. 6 B-1 and Fig. 6 B-2 are front view and the side views of expression second stage.

Fig. 7 A-1 and Fig. 7 A-2 are front view and the side views of expression phase III, and Fig. 7 B-1 and Fig. 7 B-2 are front view and the side views of expression quadravalence section.

Fig. 8 A-1 and Fig. 8 A-2 are front view and the side views of expression five-stage, and Fig. 8 B-1 and Fig. 8 B-2 are front view and the side views in the 6th stage of expression.

Fig. 9 A-1 and Fig. 9 A-2 are front view and the side views in the 7th stage of expression, and Fig. 9 B-1 and Fig. 9 B-2 are front view and the side views in the 8th stage of expression.

Figure 10 A～Figure 10 F is the side view of section of the piecing devices that describe for the sequence of movement to Yarn twisting device

Figure 11 is the stereogram that the device of the part of containing yarn insertion swivel plate is represented.

Figure 12 is the time flow chart of the operating state of expression yarn switching device shifter.

Figure 13 is that explanation is corresponding to the key diagram of another embodiment of the state of each figure of Fig. 7.

1... yarn selecting arrangement; 2... Yarn twisting device; 10... yarn guide rod; 12... separator; 20... plectane guide portion; The nozzle 21... splice; 21a... yarn accepting hole; 21b... nozzle opening; 23... cutting mechanism; 26... jet mechanism; 27... electromagnetic valve; 28... attract mechanism; 29... clamping device; 29A... first clamper; 29B... second clamper; 30... yarn pressing component; 31... yarn holding member; 32... loose thread is controlled suction nozzle; 33... pressing, yarn uses cylinder; 34... yarn keeps using cylinder; TC... timing controlled mechanism; P1... chosen position; P2... ad-hoc location; P3... position of readiness; P4... joint location; Y1... select yarn; Y4... be made into yarn.

The specific embodiment

Below, about as method and the device thereof of splicing of the present invention, be described in detail based on specific embodiment shown in the drawings.Below be the example that splice method and device thereof is assembled into the structure in the horizontal loom shown in Figure 1 with the embodiment of explanation.

Fig. 1 is the schematic side view that expression is equipped with the horizontal loom of splice method and device thereof involved in the present invention.This horizontal loom possesses board 40 and is assembled into the yarn feeding device 41 of this board 40, is equipped with yarn selecting arrangement 1 and piecing devices 2 with respect to this board 40.Board 40 for example be attached with eight kinds knit yarn bobbin W1～W8.This is respectively knitted yarn bobbin W1～W8 and is made of the yarn Y1～Y8 that knits of different colours respectively.Board 40 constitutes possesses the needle-bar 42 that is arranged side by side many knitting needles free to advance or retreatly.

In addition, board 40 possesses yarn guiding body 43 and the balladeur train 44 that can move back and forth, and utilizes the movement of balladeur train 44, and the knitting needle of needle-bar 42 is controlled by advance and retreat, and yarn guiding body 43 is together with operation.Eight kinds are wrapped in to knit and knit yarn Y1～Y8 on yarn bobbin W1～W8, supplied with to yarn selecting arrangement 1, in these eight kinds of yarns Y 1～Y8, a yarn of being selected by yarn selecting arrangement 1 (below be called the selection yarn.), by piecing devices 2 with in being made into knit yarn (below be referred to as to be made into yarn.) carry out joint, be sent to yarn guiding body 43 by yarn feeding device 41, the limit is controlled on yarn guiding body 43 and is moved back and forth the limit and supplied with to needle-bar 42, thereby is made into braided fabric 45.Knit yarn Y1～Y8 and give the overhead spring 46 of tension force to 1 supply of yarn selecting arrangement through being used for.In addition, yarn selecting arrangement 1 and Yarn twisting device 2 change the color of knitting yarn Y1～Y8 in being made into according to the pattern of the braided fabric 45 that is made into.

Yarn switching device shifter in the loom etc., constitute under the basic condition between multiple color different yarn feeding bobbin W1～W8 and the yarn feeding device 41 in the loom, have the yarn selecting arrangement 1 of selecting yarn and to the selection yarn selected by this yarn selecting arrangement 1 and the Yarn twisting device 2 that yarn carries out joint that is made in being made into.

This yarn switching device shifter possess for the attraction mechanism 28 that threads is attracted in the lump keep and between this attraction mechanism 28 and yarn feeding bobbin W1～W8 with the clamping device 29 of threads clamping in the lump, clamping device 29 is configured to two places along the yarn road, by selectively the first clamper 29A and the second clamper 29B of action constitute mutually.

In this yarn switching device shifter, the first clamper 29A in the clamping device 29 constitutes: with attraction mechanism 28 phase interlocks, when attracting to move in this attraction mechanism 28, the many yarn clampings in the lump that are in the yarn road.

In addition, in this yarn switching device shifter, the second clamper 29B in the clamping device 29 constitutes by yarn holding member 31, this yarn holding member 31 is under normal conditions threads clamping in the lump, and release clamping when the selection of selecting yarn, in addition, first clamper constitutes by yarn pressing component 30, this yarn pressing component 30 discharges clamping under normal conditions, and when the selection of selecting yarn, before the release of yarn holding member 31, press yarn, and after the beginning yarn keeps, discharge yarn and press.

Fig. 2 is the simple stereogram of representing yarn selecting arrangement 1 and Yarn twisting device 2 by amplifying.Yarn selecting arrangement 1 possesses eight yarn option board G1～G8 on top.Each yarn option board G1～G8 possesses yarn and inserts logical ring g in the bottom.Knit yarn Y1～Y8 from what knit yarn bobbin W1～W8, insert to lead in the yarn of yarn option board G1～G8 and insert logical ring g, and one the yarn that is made into wherein is sent to yarn feeding device 41.This yarn is inserted logical ring g and is formed annular, and constitutes to make and knit yarn Y1～Y8 and insert and lead in this ring part.In addition, be made into the kind time-like of yarn in change, shown in double dot dash line among Fig. 2, to the change object to knit yarn option board G1～G8 that yarn keeps mobile to the inside, thereby be positioned on the chosen position knitting yarn.Be described in detail for this action back.

Yarn selecting arrangement 1 possesses for being made into yarn and its separator of knitting the yarn separate configuration 12 in addition.And, yarn selecting arrangement 1 possess for above-mentioned be in chosen position knit yarn to the yarn guide rod 10 of joint location guiding.Fig. 3 is the simple stereogram of wanting portion's details of expression yarn selecting arrangement 1, and Fig. 4 is the simple stereogram of the details of wanting portion of expression Yarn twisting device 2.

Yarn selecting arrangement 1 with respect to separator 12, is provided with yarn pressing component 30, yarn holding member 31 and loose thread and controls suction nozzle 32 as shown in Figures 2 and 3 near it.As shown in Figures 2 and 3, yarn pressing component 30 is to press with the advance and retreat parts of the structure that moves of cylinder 33 by yarn, it retreats usually the time, like this separator 12 and yarn are pressed with the release of the yarn road between the effect end 33a of cylinder 33, and when forward motion, press between the usefulness effect end 33a of cylinder 33 yarn clamping in the lump at separator 12 and yarn.

Relative therewith, yarn pressing component 31 is to press with the advance and retreat parts of the structure that moves of cylinder 34 by yarn, it advances usually the time, press between the usefulness effect end 34a of cylinder 34 yarn clamping in the lump at separator 12 and yarn like this, and when yarn switches, retreat, separator 12 and yarn are pressed with the release of the yarn road between the effect end 34a of cylinder 34.

The fit beneath of yarn selecting arrangement 1 has Yarn twisting device 2.This Yarn twisting device 2 is as Fig. 2 and shown in Figure 4, is to knit yarn with two to carry out the device of the structure of joint with the state of putting its loose thread part in the same direction, and is to utilize compressed-air actuated ejection to blow to carry out the Yarn connecting device of the formula of splicing of joint.This Yarn twisting device 2 is made of the parts that comprise the nozzle 21 of splicing.This nozzle 21 of splicing possesses with the state that two will be put in the same direction by the loose thread of the yarn of joint part accommodates the yarn accepting hole 21a of two one threads.In addition, this nozzle 21 of splicing possesses jet mechanism 26, this jet mechanism 26 has from the nozzle opening 21b of the air-flows such as direction ejection compressed air that intersect with yarn accepting hole 21a, this jet mechanism 26 possesses electromagnetic valve 27, thereby becomes the ejection of controlling air by the open and close controlling of electromagnetic valve 27.

This Yarn twisting device 2 possesses for knitting the yarn guiding to two to the plectane guide portion 20 of joint location, and a side that constitutes at yarn accepting hole 21a possesses the clamping device 22 that two one threads that are contained in yarn accepting hole 21a are controlled, and the opposite side of the yarn accepting hole 21a in the joint nozzle possesses the cutting mechanism 23 of the loose thread side of cutting off two one threads.This Yarn twisting device 2 constitutes by a CD-ROM drive motor 50 and moves.Below piecing devices 2, possess and locate knit yarn for and be sent to the yarn location division 35 of yarn feeding device 41.This yarn location division 35 has the peristome of slit-shaped, knits yarn and is colluded and be hung on this peristome and be positioned.

Fig. 5 is the figure of expression yarn guide rod, and Fig. 5 A is its simple front view, and Fig. 5 B is the simple right side view of observing from the figure right side of Fig. 5 A, and Fig. 5 C is the I-I line cutaway view among Fig. 5 B.Shown in Fig. 5 A, yarn guide rod 10 has and forms the roughly main part 105 of circular arc.Yarn guide rod 10 possesses first holding section 101 of selecting yarn for engaging an end.Shown in Fig. 5 B, this first holding section 101 forms the opening that is in the shape of the letter V.Yarn guide rod 10 possesses rotating shaft 107 in another end, and constitutes centered by this rotating shaft 107 and can rotate around direction of arrow II.And yarn guide rod 10 also possesses for second holding section 102 that is made into yarn in the engaging of substantial middle place.Shown in Fig. 5 B, this second holding section 102 is outstanding from main part 105.Shown in Fig. 5 C, the both sides of main part 105 are provided with a pair of wall portion 106,106 ', and are formed the yarn restriction portion 103 of コ font by each several part 105,106,106 '.Therefore, this yarn restriction portion 103 in the gamut of the periphery of yarn guide rod 10, form outwardly open コ font yarn restriction portion 103.By will selecting yarn to be configured in the inside of restriction portion 103, knit the yarn margin and be formed on the ad-hoc location top and guide to joint location and can make.

Below, the action of the kind of knitting yarn in being made into about change is described in detail according to Fig. 6～sequence of movement shown in Figure 9.Fig. 6～Fig. 9 is the figure that describes for the action to yarn selecting arrangement etc., the yarn selecting arrangement is according to the order shown in Fig. 6 A, Fig. 6 B, Fig. 7 A, Fig. 7 B, Fig. 8 A, Fig. 8 B, Fig. 9 A, Fig. 9 B, the phase I～move in the whole process in the 8th stage, A-1 among each figure, B-1 are simple front views, and the A-2 among each figure, B-2 are corresponding with A-1, B-1 respectively simple left side views.Figure 10 is the figure that describes one by one for the sequence of movement to Yarn twisting device involved in the present invention.Figure 11 is the stereogram that the device of the part of containing the plectane guide portion is represented.

Yarn selecting arrangement 1, was knitted yarn Y1～Y8 with eight and is remained in eight yarn option board G1～G8 shown in Fig. 6 A-1 and Fig. 6 A-2 in its phase I.In addition, knit the inboard (the figure left side of Fig. 6 A-2) that yarn Y4 (being represented by double dot dash line) is configured in separator 12.And seven of being made into outside the yarn knit the outside (the figure right side of Fig. 6 A-2) that yarn Y1～Y3, Y5～Y8 are configured in separator 12, and are kept by 31 clampings of yarn holding member.This yarn holding member 31 possesses the air electromagnetic valve that air mass flow is controlled, and the action that constitutes the bucket cylinder that utilization excites by the air electromagnetic valve is controlled, discharged and knit yarn.Under this state, be made into yarn Y4 be sent to from the top below come yarn feeding, pass the front of the nozzle 21 of splicing.

In addition, based on the yarn switching signal of the braid pattern of having imported in advance, by from the control part (omitting diagram) that is arranged on horizontal loom to transmissions such as yarn selecting arrangement 1, Yarn twisting device 2 and yarn feeding devices 41.Utilize this signal, yarn feeding device 41 stops and making the mobile stagnation that is made into yarn Y4, and yarn selecting arrangement 1 and piecing devices 2 etc. moves.In addition, in its second stage, shown in Fig. 6 B-1 and Fig. 6 B-2, in order to form the object of kind change, select the yarn option board G1 of yarn Y1 (ruling to represent with single-point) to drive to keeping.Mobile to the inside by yarn option board G1, selecting yarn Y1 to be positioned on the chosen position P1.Afterwards, yarn guide rod 10 is along direction of arrow III rotation (just changeing).

Then, in the phase III, shown in Fig. 7 A-1 and Fig. 7 A-2, utilize the rotation of yarn guide rod 10, first holding section 101 of yarn guide rod 10 engages with the selection yarn Y1 that is in chosen position P1.Select yarn Y1 to be configured in the yarn restriction portion 103 of yarn guide rod 10, thereby guide downwards with the state that is limited in ad-hoc location P2.Second holding section, 102 scores of yarn guide rod 10 are outstanding from device 12, and move along the circular arc rising wood 12a of separator 12.Fig. 7 A-1 represents second holding section 102 and is made into that yarn Y4 joins and the state of moment of engaging.Under this state, select the local of yarn Y1 and be made into the inboard that yarn Y4 is positioned at separator 12.

In addition, in the quadravalence section, shown in Fig. 7 B-1 and Fig. 7 B-2, yarn guide rod 10 is further rotated, and first holding section 101 is disposed at than the nozzle 21 upper/lower positions on the lower of splicing.Therefore, select yarn Y1 to engage with first holding section 101 and slide and be directed.In addition, select yarn Y1 to be limited in the state of ad-hoc location P2 by the yarn restriction portion 103 of yarn guide rod 10, be directed on slip limit, yarn restriction portion 103 top, and be directed to the front of the nozzle 21 of splicing.Like this, be limited in ad-hoc location P2 and the channeling conduct of yarn restriction portion 103 by selecting yarn Y1, thus can make select yarn not can be made into yarn Y4 and other knits the front that yarn Y2, Y3 move to the nozzle 21 of splicing with twining.

In addition, as mentioned above, under the state shown in Fig. 7 A-1 and Fig. 7 A-2, second holding section 102 be made into yarn Y4 and join, engage, be further rotated (with reference to Fig. 7 B-1 and Fig. 7 B-2) from this state yarn guide rod 10.Thus, be made into yarn Y4 and engage with second holding section 102 and be directed, thereby from the medial movement of separator 12 laterally.Just, being made into yarn Y4 moves to the position of readiness P3 that knits yarn Y1～Y3, Y5～Y8 (knitting outside in being made into yarn) institute's standby.

Afterwards, in five-stage, shown in Fig. 8 A-1 and Fig. 8 A-2, yarn pressing component 30 drives, and knits yarn Y2～Y8 thereby clamping is in outside the selection yarn Y1 of inboard of separator 12.Afterwards, before 31 drivings of yarn holding member and discharging loose thread, the beginning loose thread is controlled the attraction of suction nozzle 32.Thus, loose thread is controlled suction nozzle 32 attractions and is controlled the loose thread of knitting yarn Y1～Y3, Y5～Y8.Yarn pressing component 30 constitutes by the action of the bucket cylinder that is excited by the air electromagnetic valve and controls, discharges and knit yarn.With regard to the attraction that loose thread is controlled suction nozzle 32, as shown in Figure 1, the tension force that applies by the reaction force by the overhead spring 46 of being located at horizontal loom, and can't keep knitting the loose thread of yarn Y2～Y8 reliably, therefore be provided with yarn pressing component 30.

In addition, in the 6th stage, shown in Fig. 8 B-1 and Fig. 8 B-2, be arranged on the yarn insertion section 20a on the plectane guide portion 20, from the selection yarn Y1 of the front that is directed into the nozzle 21 of splicing be made into yarn Y4 and press to the yarn accepting hole 21a of the nozzle 21 of splicing and insert.Thus, make and select yarn Y1 and be made into yarn Y4 to dispose to joint location P4.

As shown in figure 11, according to the rotation driving of CD-ROM drive motor 50, first driven wheel 51 and second driven wheel 52 are rotated driving.First driven wheel 51 be used for impelling Yarn twisting device 2 described later to carry out the linkage of a series of movements (omitting diagram) and be connected.Second driven wheel 52 drives plectane guide portion 20.Second driven wheel 52 drives plectane guide portion 20 rotations of installing on second driven gear 54 by meshing with first driven gear 53 and second driven gear 54.The local opening of plectane guide portion 20, and an avris of this peristome is provided with the yarn insertion section 20a of key shaped.In addition, plectane guide portion 20 makes thus and selects yarn Y1 and be made into yarn Y4 colluding movement under the state that closes that hangs tag with yarn insertion section 20a, and press to the yarn accepting hole 21a of the nozzle 21 of splicing to direction of arrow IV rotation.

Meanwhile, as shown in figure 10, Yarn twisting device 2 actions.Yarn twisting device 2 is to carry out the air splicer of joint by compressed-air actuated gushing out, and possesses the nozzle of splicing 21.The nozzle 21 of splicing possesses knits the yarn accepting hole 21a that yarn is accommodated to two.And this nozzle 21 of splicing possesses yarn accepting hole 21a is sprayed compressed-air actuated jet mechanism 26.In addition, be provided with nozzle opening 21b from this jet mechanism 26 to the direction of intersecting with yarn accepting hole 21a.This jet mechanism 26 constitutes the ejection of controlling air by the switching of electromagnetic valve 27.

A splice side of nozzle 21 possesses for knitting the clamping device 22 that yarn is controlled to being housed in yarn accepting hole 21a and being configured in two of joint location P4, and opposite side possesses to cut off the cutting mechanism 23 that two loose thread sides of knitting yarn are adjusted length.In addition, a splice side of nozzle 21 possesses the nozzle cover 24 of a side that opens and closes yarn accepting hole 21a and is used for adjusting joint length and the yarn of pulling out is pulled out bar 25.Splice nozzle 21, clamping device 22, cutting mechanism 23, nozzle cover 24 and yarn pulled out bar 25 and constituted, and carries out a series of driving by the linkage (omitting diagram) that is connected with first driven wheel 51.

Shown in Figure 10 A, select yarn Y1 and be made into yarn Y4 to put in unidirectional state with loose thread, controlled suction nozzle 32 by loose thread and attract to control, and be inserted into the yarn accepting hole 21a of the nozzle 21 of splicing, and be configured in joint location P4.Shown in Figure 10 B, select yarn Y1 and be made into yarn Y4 to be controlled by clamping device 22 then, nozzle cover 24 and yarn are pulled out bar 25 and are moved to the position of closing yarn accepting hole 21a.Comprise following structure in the present invention: to before will being cut yarn by the loose thread side of two one threads of joint, in the nozzle 21 of splicing, produce ejection air stream, this ejection air stream is acted on splice in the nozzle 21 yarns and will be by the loose thread side backtwisting of two one threads of joint, and at the state incision broken yarn line of continuous action ejection air stream, and then ejection air and finish the structure of joint; And generation ejection air flows in the nozzle 21 of splicing, this air stream is acted on splice the yarns in the nozzle 21 and will be by the loose thread side backtwisting of two one threads of joint, and after effect ejection air stream, temporarily stop to spray air stream, and cut yarn, when cutting yarn, finish the structure of joint.

For example, according to above-mentioned the former structure, in the stage shown in Figure 10 B, make 26 actions of jet mechanism, to selecting yarn Y1 and being made into yarn Y4 blowing compressed air, make the loose thread part backtwisting of respectively knitting yarn through nozzle opening 21b.Afterwards, shown in Figure 10 C, cutting mechanism 23 action cuts into selection yarn Y1 and the loose thread side that is made into yarn Y4 the length of regulation.Selecting the residual loose thread of yarn Y1 to be controlled suction nozzle 32 by loose thread attracts.In the present invention, with respect to jet mechanism 26 and cutting mechanism 23, can set in advance the TC of timing controlled mechanism, the TC of this timing controlled mechanism sprayed ejection air stream by jet mechanism to two one threads before cutting yarn by 23 pairs of two one threads of cutting mechanism.According to the operation of the TC of this timing controlled mechanism, control the time of origin of jet mechanism 26 caused ejection air streams and the actuation time of cutting mechanism 23, thereby can suitably select to carry out above-mentioned the former structure and the latter's structure both sides.

After the stage shown in Figure 10 C, shown in Figure 10 D, it is mobile slightly towards direction of arrow V that yarn is pulled out bar 25, adjusts the joint length of selecting yarn Y1 and being made into yarn Y4.Under the state of Figure 10 E, make yarn pull out bar 25 and further move to direction of arrow V, thereby pull out selection yarn Y1 and be made into yarn Y4 (with reference to Figure 10 F) from accepting hole 21a.Near through the compressed-air actuated blow-off outlet of yarn accepting hole 21a the time, fiber is intertwined each other, will select yarn Y1 and be made into yarn Y4 to carry out joint by the loose thread of the part of backtwisting.Pulling out this wound portion timesharing from yarn accepting hole 21a, because press by nozzle cover 24 on the limit, the limit is pulled out and is selected yarn Y1 and be made into yarn Y4, shortens so prevent from twining part, and the coupling part is not prone to the bulb shape.

In addition, such to Figure 10 F, to select yarn Y1 and be made into yarn Y4 after from yarn accepting hole 21a, being completely pulled out of, clamping device 22 discharges, and cutting mechanism 23, nozzle cover 24 and yarn are pulled out bar 25 and are returned the origin-location, finish joint.In addition, being to have under the situation of elastomeric yarn of retractility by the yarn of joint, sometimes at the downward injection air of the state of clamping, afterwards almost when cutting yarn (Figure 10 C) elastomeric yarn be intertwined, carry out joint.At this moment, under the state that stops, still can carry out joint even if pull out bar 25.

Afterwards, yarn selecting arrangement 1, in its 7th stage, shown in Fig. 9 A-1 and Fig. 9 A-2,31 pairs of yarn holding members select the yarn Y2～Y8 that knits outside the yarn Y1 to control.Then, loose thread pressing component 30 discharges knits yarn Y2～Y8, stops the attraction that loose thread is controlled suction nozzle 32 simultaneously.In addition, in its 8th stage, shown in Fig. 9 B-1 and Fig. 9 B-2, original state (counter-rotating) is returned in 10 rotations of yarn guide rod.Afterwards, yarn option board G1 turns back to original state, is selecting yarn Y1 to be configured under the state of inboard of separator 12, and yarn feeding device 41 actions are sent and selected yarn Y1 loom yarn feeding sidelong.

Figure 12 is the time flow chart of the operating state of the above critical piece that illustrates of expression.As shown in Figure 12, after yarn guide rod 10 was just changeing, CD-ROM drive motor 50 revolved turn around (0 °～360 °).Turn around by revolving of this CD-ROM drive motor 50, plectane guide portion 20 is revolved and is turned around, and clamping device 22, cutting mechanism 23, nozzle cover 24 and yarn are pulled out drivings such as bar 25 simultaneously, carry out beginning to a series of action of finishing from joint.

As shown in Figure 7, in the present embodiment, at first first holding section 101 engages with the selection yarn Y1 that is in chosen position P1, afterwards second holding section 102 be made into yarn Y4 and engage, to be made into yarn Y4 mobile laterally from the inboard of separator 12 thereby make.

Yet, for example (state that each figure of expression and Fig. 7 is corresponding) shown in each figure of Figure 13, be made into yarn (knitting in being made into yarn) for knitting yarn Y1, select yarn (changing the yarn of knitting of object) for to knit under the situation of yarn Y4, second holding section 102 not be made into yarn Y1 and engage, and select yarn Y4 to move laterally from the inboard of separator 12 with being made into that yarn Y1 engages.Just, shown in Figure 13 A-1 and Figure 13 A-2, the state rotation of yarn Y4 is selected with engaging in first holding section 101, thereby selects yarn Y4 to move with the state from the outside of separator 12 to the inboard.Thus, be made into yarn Y1 before the engaging of second holding section 102, join with selecting yarn Y4 to intersect and engage.Under this state, yarn guide rod 10 is further rotated, thereby shown in Figure 13 B-1 and Figure 13 B-2, selects yarn Y4 to make to be made into yarn Y1 mobile laterally from the inboard of separator 12.

Just, after selecting yarn and first holding section 101 engage, be made under the situation that yarn intersects, the selection yarn be made into that yarn engages and move to position of readiness P3, rather than second holding section 102.Relative with it, select yarn with after first holding section 101 engages, under the situation uncrossed with being made into yarn, second holding section 102 be made into that yarn engages and move to position of readiness P3.

In the above-described embodiment, though horizontal loom is narrated, also the yarn that yarn switching device shifter involved in the present invention can be carried choosing from multiple yarn carries out in the fibre machineries such as automatic splicer of joint.

Claims

1. the method for splicing of a yarn is characterized in that,

The state of putting to same direction with the loose thread for the treatment of joint to two is accommodated and is clamped in the nozzle of splicing, before the loose thread side of these two being treated the yarn of joint is cut yarn, in the above-mentioned nozzle of splicing, produce ejection air stream, thereby this ejection air stream is acted on splice the yarn in the nozzle, these the two loose thread sides for the treatment of the yarn of joint are carried out backtwisting, and have the state of this ejection air stream to cut yarn and joint in effect, above-mentioned two yarns for the treatment of joint are elastomeric yarn.

2. the device of splicer of a yarn is characterized in that, it comprises the joint nozzle,

Above-mentioned joint nozzle possesses the yarn accepting hole that the state of putting to same direction with the loose thread for the treatment of joint to two is accommodated this two one thread, above-mentioned joint nozzle possesses from the direction of intersecting with above-mentioned yarn accepting hole and sprays compressed-air actuated jet mechanism, and a side of the yarn accepting hole in above-mentioned joint nozzle possesses the clamping device that two one threads that are housed in this yarn accepting hole are controlled, and the opposite side of the yarn accepting hole in above-mentioned joint nozzle possesses the cutting mechanism of the loose thread side of cutting off above-mentioned two one threads, and above-mentioned jet mechanism and above-mentioned cutting mechanism be provided with timing controlled mechanism, this timing controlled mechanism controls, made before by above-mentioned cutting mechanism above-mentioned two one threads being cut yarn, utilize above-mentioned jet mechanism to spray compressed air to two one threads, make this compressed air act on the interior yarn of above-mentioned joint nozzle, these the two loose thread sides for the treatment of the yarn of joint are carried out backtwisting, and have this compressed-air actuated state to cut yarn and joint in effect, above-mentioned two yarns for the treatment of joint are elastomeric yarn.