CN101260583B

CN101260583B - Method and device for introducing end of yarn into spinning nozzle of jet spinning machine

Info

Publication number: CN101260583B
Application number: CN2008100834864A
Authority: CN
Inventors: E·皮拉
Original assignee: Rieter Elitex AS
Current assignee: Rieter Elitex AS; Rieter CZ AS
Priority date: 2007-03-08
Filing date: 2008-03-07
Publication date: 2011-07-27
Anticipated expiration: 2028-03-07
Also published as: CN101260583A; CZ2007178A3; EP1967620A2; EP1967620A3

Abstract

The invention relates to a method for importing a yarn terminal (A) into a spinning nozzle (1) of a jetting spinning machine. The yarn (A) is transferred to an importing head (2) of an assistant device in importing process, the assistant device can be movably mounted along at least one row operation units, the operation unit can stay in front of the operation unit that is special and needs assistant, the importing head is used for transporting the yarn terminal (A) to an opening (11) of the spinning nozzle (1). When the yarn (A) moves to the importing head (2), the yarn (A) on the importing head (2) is guided to a limiting position, the yarn is held by the importing head and generates a yarn (A) end for importing, the end is held in a special position of the importing head (2), then is moved to an importing position of the opening (11) of the spinning nozzle (1), next, the yarn (A) end is released from the importing head holding and bears absorption force from the opening (11) of the spinning nozzle, straightly directs to the opening (11) of the spinning nozzle (1) and is absorbed into the opening (11) of the spinning nozzle (1) through the opening yarn end (A). The yarn end (A) is imported into the spinning nozzle (1) repeatedly for resuming spinning.

Description

Yarn ends is imported the method and apparatus of spinning nozzle of jet spinning machine

Technical field

The present invention relates to yarn ends is imported the method for spinning nozzle of jet spinning machine, yarn is passed to the importing head of servicing unit in this process, this servicing unit is installed along at least one row's operating unit movably, it can be parked in the front, specific operation unit that needs maintenance, transmits yarn ends and import head for yarn ends is imported the opening of spinning jet nozzle.

The invention still further relates to the servicing unit that sprays spinning machine, it can move along row's operating unit, servicing unit comprises the importing head, enter into the position that receives yarn importing the head adjustable ground of in spinning, having no progeny between the auxiliary operation haplophase, and the importing position that adjustable ground enters into yarn ends imports spinning jet nozzle with yarn.

Background technology

After for example fracture is interrupted in spinning, yarn ends is being imported in the process of the spinning jet nozzle that sprays spinning machine, difficulty is that the minor diameter by the exit opening of spinning jet nozzle causes, the free end that is used to the yarn that recovers to spin is introduced into described exit opening.Difficulty in addition also causes owing to the open area of spinning jet nozzle is relatively long.Even be to be imported into the parameter that yarn changes a little, external condition, even the difficulty aspect the little deviation of the mutual alignment of spinning jet nozzle and gatherer makes and yarn ends can not be repeated to import reliably spinning jet nozzle.

EP0807699A2 (US5813209) addresses this problem like this, and spinning jet nozzle is made two parts, and a part is a nozzle body, and another part is the spindle delivery element.When importing yarn ends, these two parts are drawn back and insert one between them sucks element, and yarn passes through spindle delivery element by this suctions element and is inhaled into, and yarn returns by the roller of gatherer.Suck in the element in case yarn is inhaled into, yarn is the opening of process spindle delivery element just.The spindle delivery element turns back to the nozzle body place and the two is connected as a single entity thus.Simultaneously the drive nozzle in the spindle delivery element is activated, and one air-flow sprays to nozzle body and be positioned at along yarn from this nozzle and import the pressure/inlet nozzle of direction in the nozzle body back of spinning jet nozzle, and yarn passes spinning jet nozzle and is inhaled in this nozzle.

The shortcoming of this technical scheme is that its complexity height and yarn boot speed are slow.

The objective of the invention is to simplify the yarn importing and improve its speed, propose a kind of device that yarn imports that is suitable for, can repeat reliably yarn ends to be imported spinning unit.

Summary of the invention

Purpose of the present invention realizes by the method that yarn ends is imported the spinning jet nozzle that sprays spinning machine, its principle is: in the time of in yarn being transplanted on the importing head, be arranged in the yarn that imports head and be directed into a qualification position, yarn is captured in importing head and a yarn ends that is used to import is arranged, this yarn ends is clamped in this qualification position and imports in the head, the yarn ends opening part that moves to spinning jet nozzle arrives it and imports the position then, then yarn ends is released at the importing head, being subjected to the spinning jet nozzle outlet opening sucks, this outlet opening yarn ends of process is stretched to the opening of spinning jet nozzle and is inhaled into the outlet opening yarn ends of spinning jet nozzle, repeat to pass this exit opening, thereby yarn ends is directed in the spinning jet nozzle to recover spinning.

Another advantage of the present invention is that ready yarn ends is imported in the spinning jet nozzle, does not need to open spinning jet nozzle or its main body is merotomized, and simplify this part of spraying spinning machine whereby, and compared with prior art expense reduces greatly.

According to a preferred embodiment, be positioned at the yarn ends that imports head and be released in the importing position that imports head from clamp position, perhaps be released during the position arrives the counter motion of its initial position from importing importing head.

Import the degree of accuracy of spinning jet nozzle outlet opening in order to improve yarn ends, import head its import position towards the outlet opening of spinning jet nozzle by to the center.

In order to improve the method for the recovery spinning in the operating unit that sprays spinning machine, when importing yarn ends in the spinning nozzle of jet spinning machine, yarn is directed in the working track of operating unit.

In order further to improve the method for recovering spinning, before yarn ends was imported into the outlet opening of spinning jet nozzle, yarn was clamped in the working track of operating unit.

(servicing unit can move along row's operating unit the servicing unit of this injection spinning machine, servicing unit comprises that imports a head, this importing head receives yarn in order to have no progeny in spinning can be adjusted to a position of taking over yarn when the auxiliary operation unit, and the importing position that can be adjusted to yarn ends is to import spinning jet nozzle with yarn ends) principle be, importing head is provided with and yarn is clamped in one limits the device of position and be provided with the device of the yarn ends that is formed for importing, and the device that is used for the clamping yarn ends, limit the position to be incorporated at importing head place.

According to a preferred embodiment, yarn is clamped in the device that imports the qualification position on the head forms by anchor clamps.

According to a preferred embodiment, the device that will be used to import in the yarn ends maintenance that imports a qualification position at place is formed or is formed by anchor clamps or clip by the auxiliary inlet nozzle that can select to be connected with negative pressure source.

Import the degree of accuracy of head to spinning jet nozzle in order to improve, it is favourable that the importing head is provided with at least one centralising device, and centralising device matches with the centralising device of the operating unit of assisting in the importing position that imports head at least.

According to a preferred embodiment, the centralising device that imports on the head is formed by a prismatic amplifier section, and the centralising device on the operating unit is formed by the centring element that is positioned on each operating unit.

According to another preferred embodiment, the centralising device that imports on the head is formed by a centring element, and the centralising device on the operating unit is formed by the prismatic amplifier section that is positioned on each operating unit.

In order to improve at the recovery spinning method that sprays on the spinning machine operating unit, for an auxiliary thread guide in the work track that imports between head and the Yarn winding apparatus structure is provided on the importing head on the servicing unit, this auxiliary thread guide comprises reversibly to be regulated to operating unit and the guiding device that returns.

Description of drawings

The present invention is schematically shown by accompanying drawing, and accompanying drawing 1 illustrates the view that imports head, and accompanying drawing 2 is illustrated in spinning jet nozzle and is in the side view that imports the importing head in the position.

The specific embodiment

The terminal method that imports the spinning jet nozzle 1 that sprays spinning machine of yarn A occurred in the spinning have no progeny, for example because in the yarn A of operating unit fracture or after finishing the coiling of a bobbin and behind the bobbin of having reeled with the empty spool replacement.In order to recover spinning, utilize end at the yarn A that finds on the bobbin (in the spinning of the recovery behind the yarn breakage) or utilize auxiliary yarn on the auxiliary bobbin at servicing unit (when the package of a bobbin is finished after or more the recovery behind the creeling is spinned).

The importing of yarn A end is embodied as and makes and have no progeny in spinning, arrives the operating unit front at servicing unit, and servicing unit at first finds the terminal of the yarn A that is wound on the bobbin or prepares an auxiliary yarn.The part of yarn A this preparation or that find between bobbin (the auxiliary bobbin that an auxiliary bobbin or formed yarn A are reeled thereon or by the bobbin of being reeled) and yarn end is directed in the assigned position that imports on 2, import 2 and catch yarn A at position Y, terminal and catch that an assigned position X between the position Y of yarn A breaks yarn A and the end of the yarn A that is formed for importing at yarn A.When the yarn A fracture that is used to form the yarn ends A that is used to import section Z (section Z is catching the position Y of yarn A and yarn A and rupturing between the position X of the yarn A end that is formed for importing yarn), yarn A is captured at a Y1 place, position that imports 2, for example by negative pressure from negative pressure channel 21, the yarn A end that is formed for importing by negative pressure channel, it has the length of accurate qualification, and negative pressure channel is positioned at and imports a position that accurately limits on 2.

After the yarn A end that is used to import is ready to, import 2 outlet opening 11 that move to spinning jet nozzle 1 and enter its importing position, be parked in outlet opening 11 places of spinning jet nozzle 1 there.Introduce compressed air now and in spinning jet nozzle 1, form negative pressure with outlet opening 11 places at spinning jet nozzle 1.

Yarn A end imports the outlet opening 11 of spinning jet nozzle 1 then, and yarn A is from importing 2 release during this period.

According to a preferred embodiment, the introducing of the terminal opening 11 to spinning jet nozzle 1 of yarn A is carried out like this: make that yarn A at first is released at grip position Y1 in the importing position of importing 2, be released at grip position Y subsequently.

According to another preferred embodiment, the introducing of the terminal opening 11 to spinning jet nozzle 1 of yarn A is carried out like this: make that yarn A at first is released at grip position Y in the importing position of importing 2, be released at grip position Y1 subsequently.

According to another preferred embodiment, the introducing of the terminal opening 11 to spinning jet nozzle 1 of yarn A is carried out like this: make that the yarn A while is released at grip position Y and Y1 place in importing an importing position of 2.

According to another preferred embodiment, the outlet opening 11 that yarn A end imports to spinning jet nozzle 1 is importing from it and to be carried out when position enters initial position before importing the position reverse mobile to it by importing 2, during importing 2 oppositely move, yarn A at first discharges from grip position Y1 and then discharges from grip position Y, perhaps yarn A at first discharges then from grip position Y and discharges from grip position Y1, and perhaps yarn A discharges from grip position Y and position Y1 simultaneously.

According to another preferred embodiment, the importing of the terminal outlet opening 11 to spinning jet nozzle 1 of yarn A is carried out like this: make in the importing position of importing 2, yarn A discharges from grip position Y1, then import position when entering initial position before importing the position reverse mobile to it from it importing 2, yarn A discharges from grip position Y during importing 2 oppositely move.

Spin in order to import the recovery that improves subsequently spinning jet nozzle 2 backs at yarn A, during the terminal importing of yarn A spinning jet nozzle 1, yarn A is directed in the working track, this working track is positioned on the operating unit in normal spinning process, after recovering spinning, the single connection (joint) of spraying the operating unit of spinning machine can be worked immediately like this.

With the terminal device that imports in the spinning jet nozzle 1 that sprays spinning machine of yarn A, be arranged on the servicing unit that machine contains, this servicing unit can be adjusted along at least one row's operating unit.Except other connection or device, this device also comprises and imports 2, and importing 2 is adjustable with returning towards the outlet opening 11 of spinning jet nozzle 1 to return towards operating unit at least.Importing on the operating unit 2 can be positioned at the position that receives yarn A, on this position, yarn A is passed to the importing head so that yarn A end is imported in the spinning jet nozzle 1, and the importing on the operating unit 2 can also be positioned at the importing position of spinning jet nozzle 1 outlet opening, and the yarn A end that is used to import in this position is imported in the defeated opening of spinning jet nozzle 1.

Import 2 and be included in the device that position Y catches yarn A, for example comprise clip 20.Import 2 and also be included in the device that position X disconnects the A yarn, position X goes up between the yarn A free end of the auxiliary yarn of preparing at position Y with at unshowned bobbin or servicing unit (the recovery spinning process after full package bobbin replaces to empty spool).The device that is used for yarn A disconnection at position X is formed scissors or a simple blade or formed by other proper device by suitable disconnecting apparatus or the grindstone that links to each other with driver or.Another work that device that yarn A disconnects also can be placed in servicing unit of being used at position X connects but not imports 2.Because yarn A disconnects at position X, has formed the yarn A end that is used to import at position Y.

Import 2 and also comprise the device that grips yarn A end, being incorporated among the Y1 of position and importing importing 2 place, position Y1 is at the position Y that grips yarn A and disconnect in the part Z between the position X of the yarn A end that yarn A is used to import with generation.These devices are formed by auxiliary inlet nozzle 21 in the example shown in this embodiment.In the unshowned example of this embodiment, be used for importing a device that grips yarn A end and form, for example clip, anchor clamps etc. by mechanical device at importing 2 place.

In its front, import 2---spinning jet nozzle 1 be connected with centralising device, for example be positioned at the prismatic amplifier section 22 that imports 2 front and be installed in by the centralising device 10 on the auxiliary operating unit, for example be installed on the body of spinning jet nozzle 1.In a unshowned embodiment, on just by auxiliary operating unit, form prismatic amplifier section, it for example is formed on the body of spinning jet nozzle 1, and centring element 10 is installed in and imports a front of 2.Centring element 10 is advantageously formed by a pin or bolt.In unshowned example of this embodiment, importing 2---the centring element of the connection of spinning jet nozzle 1 is formed by other suitable element.

When being directed to yarn A guide tip in the spinning jet nozzle 1, the spinning jet nozzle 1 of suction guide tip is provided with at least one compressed air inlet, is used for producing at outlet opening 11 places negative pressure, with the terminal inlet nozzle 1 of yarn A.

For operating unit being improved the recovery of spinning, before spinning recovers, yarn is imported working track, servicing unit is provided with a unshowned auxiliary thread guide in working track, this working track import 2 and yarn take-up device between, and the operant activity of the operant activity of an auxiliary thread guide and importing 2 cooperates.This auxiliary thread guide comprises guiding device, it can be towards operating unit and adjusts with returning, and in order further to improve in the outlet opening 11 with the terminal importing of yarn A spinning jet nozzle 1, auxiliary thread guide can be in a working track, even grips yarn during importing in spinning jet nozzle 1 outlet opening 11 in that yarn A is terminal.

The Reference numeral table:

1 spinning jet nozzle

10 centring elements

11 spinning jet nozzle outlet openings

2 import head

20 clips

21 auxiliary suction nozzles

22 prismatic amplifier sections

23 nozzles

The A yarn

Y imports the position that head is caught yarn

Y1 imports the position that head is caught yarn

Z catches the position Y of yarn and the yarn that yarn breakage is formed for importing yarn

Section between the position X of end

The X yarn breakage is formed for importing the position of the yarn ends of yarn

Claims

1. yarn ends is imported the method for the spinning jet nozzle that sprays spinning machine, yarn is handed over to the importing head of servicing unit between the introduction period, servicing unit is installed movably along at least one row's operating unit, this servicing unit can rest on the auxiliary operating unit front of specific needs, and the yarn ends that the importing head will be used to import is transported to the outlet opening of spinning jet nozzle, it is characterized in that when yarn (A) being transplanted on importing head (2), the yarn (A) that imports on the head (2) is directed into a qualification position, yarn is imported into head (2) and grips and produce a yarn that is used to import (A) end, the ad-hoc location of this end in importing head (2) is held, move to the importing position of the outlet opening (11) of spinning jet nozzle (1) then, then yarn (A) is terminal is released and stands suction from the outlet opening (11) of spinning jet nozzle (1) from the gripping that imports head (2), stretch to the outlet opening (11) of spinning jet nozzle (1) and be inhaled into the outlet opening (11) of spinning jet nozzle (1) by this outlet opening yarn end, therefore repeatedly put into practice yarn end and be imported into spinning jet nozzle (1) to recover spinning.

2. according to the method for claim 1, it is characterized in that the end of yarn (A) is released to the importing position that imports head (2) from the gripping that imports head (2).

3. according to the method for claim 1, it is characterized in that the end of yarn (A) is released during the counter motion of the initial position that imports head (2) from importing the position at importing head (2) from importing the gripping of head (2).

4. according to method any in the claim 1 to 3, it is characterized in that, import head (2) and importing outlet opening (11) centering of position towards spinning jet nozzle (1).

5. according to method any in the claim 1 to 3, it is characterized in that when yarn end was imported into the spinning jet nozzle (1) that sprays spinning machine, yarn (A) was imported in the working track on the operating unit.

6. according to the method for claim 5, it is characterized in that, the outlet opening (11) that imports spinning jet nozzle (1) at yarn end before, yarn (A) is held in the working track on the operating unit.

7. spray the servicing unit of spinning machine, it can move along row's operating unit, it comprises the importing head, import head and receive the position of yarn can being adjusted in spinning, to have no progeny between the auxiliary operation haplophase, and the importing position that can be adjusted to yarn end is to import spinning jet nozzle with yarn end, it is characterized in that, import head (2) and be provided with the device of catching yarn (A) at ad-hoc location, also be provided with the device of the yarn end that is formed for importing and grip the device of the yarn end that is used to import at the ad-hoc location that imports head (2).

8. according to the servicing unit of claim 7, it is characterized in that the device of catching yarn (A) at the ad-hoc location that imports head (2) is formed by anchor clamps (20).

9. according to the servicing unit of claim 7 or 8, it is characterized in that, grip the terminal device of yarn (A) that is used to import at the ad-hoc location that imports head (2) and form by the auxiliary inlet nozzle (21) that is connected with negative pressure source.

10. according to the servicing unit of claim 7 or 8, it is characterized in that the device that grips the yarn (A) that is used to import at the ad-hoc location that imports head (2) is formed by anchor clamps.

11. the servicing unit according to claim 7 or 8 is characterized in that, the device that grips the yarn (A) that is used to import at the ad-hoc location that imports head (2) is formed by a clip.

12. the servicing unit according to claim 7 is characterized in that, imports head (2) at least one centralising device is set, it matches with the centralising device of operating unit in the importing position that imports head at least.

13. the servicing unit according to claim 12 is characterized in that, the centralising device that imports on the head (2) is formed by prismatic amplifier section, and the centralising device on the operating unit is formed by the centring element that is positioned at each operating unit.

14. the servicing unit according to claim 12 is characterized in that, the centralising device that imports on the head (2) is formed by centring element, and the centralising device on the operating unit is formed by the prismatic amplifier section that is positioned at each operating unit.

15. according to any one servicing unit in claim 7 and 8, it is characterized in that, for the importing head (2) on the servicing unit provides an auxiliary thread guide, it is arranged in the work track that imports between head (2) and the Yarn winding apparatus structure, and this auxiliary thread guide comprises the guiding device of reversibly regulating and regulating with returning to operating unit.

16. the servicing unit according to claim 11 is characterized in that, imports head (2) at least one centralising device is set, it matches with the centralising device of operating unit in the importing position that imports head at least.