CN1960928B

CN1960928B - Device and method for joining textile yarns

Info

Publication number: CN1960928B
Application number: CN2005800174040A
Authority: CN
Inventors: 詹路卡·法布里斯
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-28
Filing date: 2005-05-27
Publication date: 2011-07-27
Anticipated expiration: 2025-05-27
Also published as: ATE444256T1; EP1753685A1; ITUD20040113A1; WO2005118449A1; CN1960928A; DE602005016919D1; EP1753685B1

Abstract

Device (10) and method for joining textile yarns (16a, 16b). The device (10) includes a joining chamber (13) inside which the ends of the two yarns (16a, 16b) to be joined are introduced. The joining chamber (13) can be closed and defines, in its closed position, a joining compartment which is hit by a fluid. The device (10) comprises, for each of the yarns (16a, 16b), first clamping members (21a, 21b) to clamp the ends of the yarn (16a, 16b), second gripping members (14a, 14b) rotating substantially around the axis of the relative yarn (16a, 16b) in order to perform the de-twisting and re-twisting of the yarn (16a, 16b), and cutting members (22). The joining chamber (13), the clamping members (21a, 21b) clamping the ends of the yarns (16a, 16b), and the de-twisting and twisting rotating members (14a, 14b) are driven by respective and independent drive elements governed by the commands of an electronic control unit (15).

Description

Be used to add the equipment and the method for textile yarn

Invention field

The present invention relates to a kind of equipment and correlation technique thereof that is used to add textile yarn, this yarn is by one group of be woven together fibrous.

In the device in accordance with the invention, the various device of be used to clamp the end, shearing afterbody, stretching, add yarn parts go turn round and turn round again, and air pressure adds the element of entering the room, all by they separately, different actuating devices drives individually, according to parameter that presets and can preset and numerical value, described actuating device can be arranged and control individually independently by an electronic unit.

According to type, the environmental conditions of the feature of yarn, yarn purposes and the signal that arrives from proper sensors, electronic unit is suitable for to each actuating device signal of giving an order, so that carry out the order of the various operations that add yarn.

Background of invention

When adding textile yarn, strict possibly technical step and the additional step distinguished, direct executable operations on the fiber of forming yarn in technical step, additional step are mainly used in exactly locating yarn so that various operations are correct.

The adding equipment of the first kind comprises pneumatic compression devices, and described pneumatic compression devices is utilized the normally effect of fluid on fiber of air, the end of the wherein said fibrous yarn that will add.Usually, in initial step, such equipment acts on two strands of yarns, so that utilizes two ends of scissors or pliers acquisition length-specific and shape, promptly so-called afterbody.Subsequently, two ends of the yarn of adding are impacted by one pressurized air, so that reduce remaining distortion, attempt to allow fiber parallel and reduce quantity by the fiber that adds operating influence.

Realize that this operates employed technology is diversified, for example with respect to yarn bevelled eductor, rotary jet, pulse jet device and other.When preparation process finished, afterbody inserted one and adds accurately and enter the room, and wherein second burst of air penetration has the fiber of mechanical resistance, and since the geometric configuration of this chamber fiber is tightened up together, with cause add present well attractive in appearance.Utilize such equipment, obtaining existing good mechanical feature, the adding of good appearance is arranged again is extremely difficult; In fact, these features depend on the geometric configuration that adding of air pressure enters the room, and therefore must use one to cover abundant scope yarn and guarantee compromise chamber good between above-mentioned two requirements usually.

Main mechanical also is known, and it directly uses on the power operation of the fiber that constitutes the yarn end that will add.First power operation of utilization on two ends of the yarn that will add promptly describedly goes to turn round, and obtains the center, and in fact fiber is parallel to each other so does not have mechanical resistance in the center.Herein, redundance is torn off or is cut, so that has obtained to have two afterbodys of the desired length of parallel fibers.These afterbody stacks utilize second power operation then, or operate opposite reversing, the structure of reconstruct original yarn with first.Use such equipment, obtained to have the yarn of the aesthetic of optimization, but lacked the shortage that penetration step causes mechanical resistance, especially can cause wearing and tearing.

The equipment of another type is air pressure one mechanical equipment that mixes, such as the example of in DE-A1-3131986 and EP-A-0227370, describing, wherein all mechanically operated first steps are to make yarn remove to turn round and obtain to have the yarn line segment of parallel fibers, utilize a fluid streams to penetrate this fiber subsequently, at last in order fiber to be gone turn round and the structure of the yarn of living again is carried out power operation once more.Although have outward appearance and mechanical resistance two aspect outstanding effect because huge mechanical complexity in commercial production, such equipment does not have propagated widely.In fact, in order to have the possibility that is adapted to different types of yarn, must remove the quantity of turning round and/or turning round again and the step of in air-pressure chamber, impacting and/or time length by conversion machinery.Suppose the shape and the relative drive systems of parts, whenever changing yarn types and/or quantity, this known equipment need be that the replacement of parts partly and/or their machinery are adjusted again at least, and this can cause this equipment waste.

Therefore the objective of the invention is to obtain equipment and the method that is used to add yarn, it allows to obtain to be used for the technique effect of expectation of yarn of the broad range of kind and quantity, and does not increase the complexity of equipment and get rid of defective in the above-mentioned known device.

The applicant designs and has realized the present invention, so that overcome the shortcoming of prior art and obtained other advantages.

Summary of the invention

The present invention is illustrated in independent claims and shows, and dependent claims has been described other character of innovation and the variable different with main inventive concept of the present invention.

The adding equipment that is used to prevent and treat yarn according to the present invention is the type of air pressure one machinery that mixes, and as its major part comprise air-pressure chamber or add the device of entering the room, clamp the yarn end, going of cooperating with described fixing device turned round device and turned round device, stretching device and shear again.

The exclusive feature according to the present invention, at least on the viewpoint of function and operation, the parts of the said equipment are mechanically separate separately, and according to program, working parameter with from the signal of the sensor that uses, utilize relevant and flip flop equipment independently, in moving whole and each step, can under the instruction of electronic control unit, trigger individually.

The independence of operation allows to obtain to be used for the adding of the general-duty in fact equipment of yarn, and need not mechanically to revise it or use special part.

In fact, by electronic unit is set, can be in the trigger parameter of the single parts of each chance correction, underway they are adjusted to the requirement of operation cycle particularly, so that can adjust the operation of equipment according to the feature of the yarn that will add.

By this way, we have obtained complete general and equipment flexibly, and it is saved cost and can need not and revises and reconstruct, operates on the yarn of any kind in fact.

Description of drawings

These and other features of the present invention will be illustrated in following preferred embodiment, provide infinite example with reference to accompanying drawing, wherein:

Fig. 1 is the overall schematic that is used for the adding equipment of textile yarn according to the present invention;

Fig. 2 shows the amplification details of the equipment of Fig. 1;

Fig. 3 a, 3b and 3c show the adding on-cycle control step of being carried out by the equipment of Fig. 1;

Fig. 4 a, 4b and 4c show three embodiment that remove the rotary clamp turning round and turn round that carry out yarn;

Fig. 5 shows the amplification details of Fig. 4 b;

Fig. 6 is the diagram of circuit that is used to add the method for textile yarn according to the present invention.

The specific embodiment

With reference to accompanying drawing, label 10 ordinary representations are used for the adding equipment of textile yarn, and according to the preferred embodiments of the present invention, textile yarn is identified by the 16a in Fig. 3 a, 3b and 3c, 16b.

The air pressure that equipment 10 comprises selectively opening and closing adds enters the room 13, introduces the end that will add yarn 16a, 16b therein.Air pressure adds to enter the room and 13 cooperates so that clamp the end of yarn 16a, 16b with separately fixing device 20, and the adding of described air pressure enters the room and 13 be suitable for carrying out some of following function at least:

One reverses drg;

One clamps corresponding yarn 16a or 16b, so as carry out going before adding turn round step and carry out add after finishing turn round step again during, reverse and concentrate in the yarn line segment that relates to adding;

One stretches;

One reduces the quantity that will form the fiber that adds;

One tears off afterbody;

The especially big expansion of one excess yarn part, so that obtain to have two sections of yarn of the length of the controlled fiber that is called afterbody and quantity.

Fixing device 20 is positioned near air pressure and adds 13 the outside of entering the room, and comprises the pincers of first on the relative edge who is arranged in described chamber 13 and second and clamp, and one (21a) entered the room on 13 and another (21b) enters the room 13 times adding in described adding.Each pincers 21a, 21b act on one of two ends of yarn 16a, the 16b that will add, and especially act on the correlation range of free yarn.

Each pincers 21a, 21b are installed in by electronic engine 12 and carry out on the associated screws 11 of rotation.Adopt with Fig. 3 in the consistent screw rod of primary importance of process end at the rear represented of A, pincers 21a, 21b open and preparation reception relative yarn 16a, 16b.

The suitable quantity of control associated electrical driving engine 12 rotations, pincers 21a, 21b tighten up, and portion clamps relative yarn 16a, 16b within it.In this step, (the position B among Fig. 3 b) pincers 21a, 21b carry out stretched operation on relative yarn 16a, 16b, and described stretching has and the proportional amount of rotation quantity that passes to correlation engine 12.The integral body that stretches can be identical with two yarn 16a, 16b, also can be different mutually.

Move to the position (the position C among Fig. 3 c) of second process end, the place ahead until screw rod 11,, carry out the function of tearing afterbody by triggering driving engine 12 once more.

Equipment 10 also comprises the shear of the scissors 22 of shearing yarn, the yarn that it can be used in the yarn of resistibility particularly or has elastic core, so that guarantee the interference of yarn.

Trigger scissors 22 by the piston that utilizes control Electronic Valve 23 to supply with air pressure.

Air pressure adds that to enter the room 13 be to carry out the equipment that penetrates the fiber function therein.Chamber 13 is formed by two active shells that separate, be respectively 30 and 31 (Fig. 2,3a), at least one shell wherein, be shell 30 this moment, be provided with according to the order of Electronic Valve from wherein discharging a series of holes 32 of compressed fluid, preferably described hole have axle with described yarn 16a, 16b vertical spool.

Preferably utilize the piston of air pressure, two shells 30 and 31 close away from each other/mutually.They therefore can suppose mutually away from primary importance (the position D among Fig. 3 a), wherein adding enters the room 13 opens and yarn 16a, 16b introduce within it, the end of yarn is kept by pincers 21a, 21b separately.

Add 13 inside of entering the room in case yarn 16a, 16b are positioned at, two shells 30 and 31 are in contact with one another (the position E among Fig. 3 b) and add to enter the room and 13 close with sealing means.

After preparing two ends of yarn 16a, 16b suitably, adding enters the room 13 closes then, in preset time, triggers the control Electronic Valve, so that fluid is introduced chambers 13 by hole 32, and impacts fiber.Add preferably such so that this fluid streams generation eddy current of the shape of entering the room,, between two ends, produce the adding point so that fiber combines.

According to the feature of yarn, the type and the environmental conditions of yarn purposes, by electronic control unit 15 limit gas be sent to yarn the duration.Add according to on-cycle step and the integral body, the opening and closing that are passed to the stretching of relative yarn 16a, 16b enter the room 13 shell 30 and 31 air pressure piston and will see hereinafter as us, the element and the design that drive rotary clamp 14a, the 14b of scissors 22 add the on-cycle element, and electronic control unit 15 also is applicable to the driving engine 12 that drives pincers 21a, 21b.

Therein in one and/or another shell 30,31, adding enters the room 13 can be provided with the equipment that clamps yarn, and it is particularly useful for elastomeric yarn.In this case, according to the instruction of electronic control unit 15, the pin 33 of one or more air pressure control can selectively drive, so that clamp yarn 16a, 16b adding the district, the elastic core that prevents yarn shrinks excessively and breaks away from from adding.

According to first distortion, equipment 10 can be provided with the accessory that selectively drives, so that conveying, the pressure and temperature of the fluid that conversion is injected.According to the feature of yarn, the type and the environmental conditions of yarn purposes, accessory is by control unit 15 guiding.

According to another distortion, equipment 10 is provided with the compound that can allow empty G﹠W and is injected into and adds 13 the accessory of entering the room, and according to the feature of yarn, the type and the environmental conditions of yarn purposes, the quantity of described injection is revised in proportion by control unit 15.

As mentioned above, equipment 10 also comprises the first rotary clamp 14a and the above-mentioned rotary clamp of the second rotary clamp 14b turning round and turn round of going that is suitable for yarn 16a, 16b separately.

Rotary clamp 14a, 14b allow to transmit around they separately axle controlled quantity rotate to relative yarn 16a, 16b.They are positioned near air pressure and add 13 the outside of entering the room, and on relative limit, and each cooperates with relative yarn clamping clip 21a, 21b.Each rotary clamp 14a, 14b act on the end in the two ends of yarn 16a, the 16b that will add, especially act on the section of complete yarn.

Fig. 4 a, 4b and 4c show three embodiment of rotary clamp 14a, 14b.

In Fig. 4 a, rotary clamp 14a, 14b have the eyelet 50 that holds relative yarn 16a, 16b, and are formed on first gear 40 by second gear 140 traction of the axle that is fixed with electronic engine.

In Fig. 4 b, rotary clamp 14a, 14b also have the eyelet 50 that holds relative yarn 16a, 16b, and are installed on the dish that wherein is provided with magnet 41, yet hold electronic coil 42 in the outside of determining.According to the instruction that electronic control unit 15 transmits, control the controlled rotation of pincers by supplying with coil 42 suitably.

In the embodiment shown in Fig. 4 c, rotary clamp 14a, 14b also have the eyelet 50 that holds relative yarn, and are installed on the small pneumatic turbine 43.By triggering suitable gas jet, rotate cw/left-hand revolution of pincers 14a, 14b, for example 44 clickwises and 45 left-hand revolutions.

When the holding pin 47 relevant with moving coil 48 moves to when allowing position that yarn 16a, 16b enter, the angular coordinate of each rotary clamp 14a, 14b is by sensor (Fig. 5) control that suitable electronic signal is provided.

In case rotary clamp 14a, 14b clamp at desired locations, open pincers by supplying with the coil 48 that attracts pin 47.

The electronic signal that is provided by sensor 46 allows electronic control unit 15 to measure the quantity of the rotation of being carried out by pincers 14a, 14b.

Electronic control unit 15 preferably comprises the electronic card with microprocessor, wherein integrated processing, the function that leads electronic engine, controls Electronic Valve and read various sensors.

According to the memory program of the series of parameters that links to each other with the yarn feature, the adding that will obtain and environmental conditions, the sequence of operations that electronic control unit 15 is carried out on yarn.This order can be according to the signal revision of sending from certain sensor, to be suitable for new working environment.

Shown in the diagram of circuit of Fig. 6, we describe the complete adding circulation of being carried out by aforementioned device 10 now.

The first step--introduce and clamp yarn: each yarn 16a, 16b be introduced in the equipment 10, and at both ends are clamped by respective end portions clamping clip 21a, 21b and corresponding rotary clamp 14a, 14b.

At the coda of this operation, four pincers, wherein two fixation clamps 21a, 21b and two rotary clamp 14a, 14b with equipment 10 those separation of exterior yarn line segment slave unit in-to-in, will carry out subsequent operation on those.

Second step--remove to turn round yarn: electronic control unit 15 control rotary clamp 14a, 14b rotation.The quantity of rotation is relevant with the feature of yarn with direction, so that obtain to be similar to the removal of reversing of end clips clencher 21a, 21b.

The 3rd step--close to add and enter the room: by triggering suitable Electronic Valve, control unit 15 control air pressure add to enter the room 13 closes.

The 4th step--drawing: utilize the controlled driving of correlation engine 12, control unit 15 control end clamping clip 21a, 21b move.The integral body that pincers 21a, 21b straight line move is relevant with the yarn feature: the integral body of stretching is big more, and the quantity of fiber that relates to adding is more little.

The 5th step--clamp the middle part of yarn: control unit 15 triggers the Electronic Valve of the outlet of control differential gaps, so that the possible elastic core that prevents yarn is in subsequently the excessive shrinkage in the step of tearing.

The 6th step--tear: control unit 15 control end clamping clip 21a, 21b move, until loop ends.The two ends of the yarn of removing utilize suction to cause and tear.

The 7th step--scissor cut: for the release of two fragments of the yarn that guarantees to remove, control unit triggers two scissors 22.

The 8th step--add and impact: control unit 15 controls add the 13 interior fluid jet flows of entering the room.The feature of yarn and the parameter of setting are depended in the lasting world of jet flow.The direction of impacting is the fiber that so consequently fluid not only acts on yarn, they are penetrated each other, and the piston of center is in inactive position.

The 9th the step--yarn is turned round again: control unit 15 control rotary clamp 14a, 14b are according to the opposite sense rotation with respect to the direction of second step: the quantity of rotation depends on the feature of yarn and the parameter of setting.

The tenth step--loop ends: control unit 15 control air pressure add the shell 30,31 of entering the room to be opened, and rotary clamp 14a, 14b discharge subsequently, and last end clamping clip 21a, 21b return their position.

As additional step, according to the parameter of setting, control unit 15 can trigger the function that control adds.

This step can provide the activation of various control algorithms: according to operator's specific requirement, and the test of every N circulation, random scattering.

According to other-distortion, in order to measure the tension force of yarn, provide the position in the pincers 21a, the 21b that clamp an end that the adds strength sensor on one of at least.If the function of test resistance and stretching is activated, the numerical value that is provided by strength sensor is provided control unit 15, and handles its load to determine to add.

According to another distortion, be activated if measure the function of resistance and stretching, be provided with the adjustable clamp that clamps the other end that adds.In this case, therefore control unit 15 is suitable for controlling moving of adjustable clamp, will add to stretch until its disconnection.

In this mode of texturing, when working cycle finished, the pincers and the end clips clencher that are provided with load cell were activated, and added according to this mode and to keep being clamped in two pincers.

Control unit 15 is controlled adjustable clamp subsequently and is moved, and adds so that stretch, and the numerical value that is provided by load cell is provided simultaneously.When adding disconnection, read to be actually zero from the numerical value of load cell.

Control unit 15 is handled the data of record and the numerical value of the disconnection and the stretching of adding is provided.If these numerical value are the level of meet requirements not, control unit 15 sends the signal of equipment 10 faults.For fear of producing and the inconsistent adding of required standard, the operator can be provided with equipment 10, so that this situation causes it to stop.Perhaps,, only send the signal of this environment this moment, so that can maintenance and/or the operation of removing if ought not be that the numerical value of optimum acquisition is considered to enough continue functions.

Claims

1. be used to add textile yarn (16a, equipment 16b), be included in and wherein can introduce two yarn (16a that will add, adding of end 16b) enter the room (13), described add enter the room (13) can be closed and limit at its off position, in order to obtain to add, can be between adding by one fluid impact, for each yarn (16a, 16b) described equipment comprises: clamp yarn (16a, 16b) first fixing device (the 21a of end, 21b), in order to carry out yarn (16a, going 16b) turned round and turned round in fact around relative yarn (16a, second fixing device (the 14a of axle rotation 16b), 14b) and shear (22), it is characterized in that: described add enter the room (13), clamp yarn (16a, 16b) described fixing device (the 21a of end, 21b) and remove the described second fixing device (14a that turns round and reverse, 14b), can be driven by the separately and independently actuating device of domination under the instruction of electronic control unit (15), wherein according to the characteristic of yarn, the type of yarn purposes and at least one important document in the environmental conditions, described electronic control unit (15) can be regulated and control the startup moment of the described fluid on yarn at least, the time length of rate of flow and/or conveying, and wherein said first fixing device comprises two pincers, one (21a) adds on enter the room (13) and another (21b) adds under enter the room (13) described described, each described pincers (21a, 21b) act on the yarn (16a that will add, 16b) one of two ends, and be installed on the associated screws (11) by driving engine (12) execution rotation separately, so that at relative yarn (16a, 16b) go up the execution stretched operation, the amount of described stretching is proportional with the rotation amount that is passed to correlation engine (12), and wherein the integral body of La Shening can be at two yarn (16a, identical or mutual difference 16b).

2. according to the described equipment of claim 1, it is characterized in that: in order to move described clamp device (21a, 21b) from primary importance (A), the second place (B) and the 3rd position (C), described electronic control unit (15) can be controlled the driving of described driving engine (12), wherein open and preparation reception relative yarn (16a, 16b) at the described clamp device of primary importance, close and the relative yarn (16a, 16b) of portion's clamping within it at second place clamp device (21a, 21b), obtain the function of tearing afterbody in the 3rd position.

3. according to the described equipment of aforementioned arbitrary claim, it is characterized in that: described add enter the room (13) are formed by two active shells (30,31), wherein at least one be provided with under the instruction of Electronic Valve can be from wherein the hole of releasing pressurized fluid (32).

4. according to the described equipment of claim 3, it is characterized in that: described shell (30,31) can be away from each other/and close, in order to suppose first at a distance of remote position, open and inside can be introduced in the end of the yarn (16a, 16b) that held by clamp device (21a, 21b) separately wherein said add enter the room (13), and suppose second position that is in contact with one another, wherein be used to introduce adding of described fluid enter the room (13) close with sealing means by described hole (32) so that impact fiber and to add.

5. according to the described equipment of claim 3, it is characterized in that: described add enter the room (13) so form, so that the fluid jet flow produces eddy current, so that fiber combines generation adding point between two ends.

6. according to the described equipment of claim 3, it is characterized in that: described add enter the room (13), in one of described shell (30,31) and/or another, comprise the device that can selectively trigger, so as between to add inner clamps tight feeder line (16a, 16b).

7. according to claim 1 or 2 described equipment, it is characterized in that: described electronic control unit (15) can be regulated and control the hand of rotation and the rotation quantity of described second fixing device (14a, 14b), described second fixing device (14a, 14b) can be according to the feature of yarn, the type and the environmental conditions of yarn purposes, carry out yarn (16a, 16b) go turn round and turn round again.

8. according to claim 1 or 2 described equipment, it is characterized in that: going to turn round in the step, rotation quantity is relevant with the yarn feature with hand of rotation, so that the removal that acquisition and end clips clencher (21a, 21b) similarly reverse.

9. according to the described equipment of claim 7, it is characterized in that: each described second fixing device (14a, 14b) is provided with the eyelet (50) that holds relative yarn (16a, 16b), the angular coordinate of wherein said second fixing device (14a, 14b) is controlled by sensor (46), when holding pin (47) moves to when allowing position that yarn (16a, 16b) enters, this sensor provides suitable electronic signal.

10. according to claim 1 or 2 described equipment, it is characterized in that: it comprises can be by described electronic control unit (15) device driven, so that selectively described rate of flow, the pressure and temperature that adds the fluid of enter the room (13) injected in conversion.

11. according to claim 1 or 2 described equipment, it is characterized in that: it comprises can be by described electronic control unit (15) device driven, so that according to the feature of yarn, the type and the environmental conditions of yarn purposes, will inject described add enter the room (13) according to the gas of proper ratio and the compound of water.

12. according to the described equipment of claim 2, it is characterized in that: according to the feature of yarn, the type and the environmental conditions of yarn purposes, described electronic control unit (15) can determine that the selectivity of described clamp device (21a, 21b) triggers, so that the startup of the stretching of two fragments of regulation and control execution yarns (16a, 16b) constantly.

13. according to the described equipment of claim 2, it is characterized in that: according to the feature of yarn, the type and the environmental conditions of yarn purposes, described electronic control unit (15) can determine that the selectivity of described clamp device (21a, 21b) triggers, so that two moment that free end tears of regulation and control control yarn.

14. according to claim 1 or 2 described equipment, it is characterized in that: according to the feature of yarn, the type and the environmental conditions of yarn purposes, described electronic control unit (15) can determine that the selectivity of interim relevant with second fixing device (14a, 14b) with the clamp device (21a, 21b) that clamps the yarn end at least shear (22) triggers.

15. according to the described equipment of claim 1, it is characterized in that: described second fixing device (14a, 14b) can be driven by the electronic engine (12) of described control unit (15) domination.

16. according to the described equipment of claim 1, it is characterized in that: described second fixing device (14a, 14b) can be driven by the air pressure vortex device (43) of described control unit (15) domination.

17., it is characterized in that according to the described equipment of claim 1: what described second fixing device (14a, 14b) can be by described control unit (15) domination, and the electronic coil device (42) that cooperates with magnet (41) drives.

18. according to the described equipment of claim 1, it is characterized in that: at least one place of the clamp device (21a, 21b) of described clamping yarn (16a, 16b) end, existence can be carried out the sensor device of the test of resistance and stretching to the adding of firm formation.

19. according to the described equipment of claim 18, it is characterized in that: described sensor device comprises at least one load cell.

20. be used to add the method for textile yarn (16a, 16b) in the described adding equipment of aforementioned arbitrary claim (10), it is characterized in that: it comprises the following step at least successively:

By corresponding clamp device (21a, 21b) and corresponding second fixing device (14a, 14b), introduce yarn (16a, 16b) to equipment (10), and clamp the step of their end;

Yarn goes the step turned round, wherein electronic control unit (15) control second fixing device (14a, 14b) rotation, and the quantity of rotation is relevant with the feature of yarn with direction;

Close the described step that adds enter the room (13);

Utilize the controlled driving of correlation engine (12), wherein said control unit (15) is controlled the mobile step of described clamp device (21a, 21b), so that the yarn (16a, 16b) that stretches and clamp by second fixing device (14a, 14b), wherein the straight-line integral body of clamp device (21a, 21b) is relevant with the feature of yarn, so that regulate and control the integral body of the stretching of being transmitted according to corresponding mode;

Described control unit (15) control clamp device (21a, 21b) moves the step that finishes until process, tears so that two ends of the yarn that will remove (16a, 16b) utilize suction to cause;

Wherein said control unit (15) triggers the step of shearing parts (22), so that the release of two fragments of the yarn (16a, 16b) that assurance will be removed;

Wherein said control unit (15) control adds the step of the fluid in enter the room (13), and wherein, the time length of the moment of startup, rate of flow and jet flow is the function of the parameter of the feature of yarn and setting;

The step that yarn (16a, 16b) is turned round again, wherein, described control unit (15) control second fixing device (14a, 14b) is according to rotating in the opposite direction with respect to the side that takes during going to turn round, and the rotation quantity of wherein said second fixing device (14a, 14b) is the function of the parameter of the feature of yarn and setting;

The step of loop ends, the described shell (30,31) that adds enter the room (13) of wherein said control unit (15) control is opened, and described subsequently second fixing device (14a, 14b) discharges, and last end clamping clip (21a, 21b) returns their position.