CN109837619A - Free end type spinning machine and the method that yarn is repaired in the type spinning machine of free end - Google Patents
Free end type spinning machine and the method that yarn is repaired in the type spinning machine of free end Download PDFInfo
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- CN109837619A CN109837619A CN201811416677.8A CN201811416677A CN109837619A CN 109837619 A CN109837619 A CN 109837619A CN 201811416677 A CN201811416677 A CN 201811416677A CN 109837619 A CN109837619 A CN 109837619A
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- 238000009987 spinning Methods 0.000 title claims abstract description 168
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008439 repair process Effects 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims description 19
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 12
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- 238000005452 bending Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- 230000002441 reversible effect Effects 0.000 claims description 8
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 7
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- 238000006073 displacement reaction Methods 0.000 description 3
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- 230000004913 activation Effects 0.000 description 1
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/48—Piecing arrangements; Control therefor
- D01H4/50—Piecing arrangements; Control therefor for rotor spinning
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Free end type spinning machine and the method that yarn is repaired in the type spinning machine of free end, free end type spinning machine includes: at least one spinning head, the winder unit that spinning head has spinning unit and is wound into, spinning unit generates yarn and web is introduced spinning rotor, wherein, yarn on the spool of spinning unit acquisition from below is wound on pipe by the winder unit being wound into, at least one repairing trolley can move, so as to which its own to be located in the repair operation for the yarn near each spinning head and executing damage.Advantageously, repairing trolley includes: air-breathing mouth unit, is shaped to all operations for executing grasping yarn ends and preparing yarn ends for subsequent repairing；And the introducing group of yarn, the yarn ends that grasping prepares in advance for repairing being configured to, and bring it on the spinning rotor of spinning unit, yarn ends being repaired with will pass through the yarn formed.The application reduces the quantity for completing the device of circulation.
Description
Technical field
The free end type spinning machine and free end type spinning machine of the present invention relates to a kind of air-breathing mouth unit with enhancing
In relevant method for repairing and mending.
Background technique
It is well known that yarn breakage may occur in spinning machine, so as to cause in yarn production in spinning process
It is disconnected.This movable recovery includes being repaired (piecing) to two parts of yarn: what is generated before breaking is wrapped in volume
Part on axis, and will be in the part that spinning will generate when restoring.
In the type spinning machine of free end, carry out " triggering " spinning by using the yarn ends picked up before breaking to execute
Repairing；Particularly, the fiber of new yarn will accumulate on old end, to realize the continuity of yarn produced.
In general, the process of yarn ends connection is carried out by means of repairing circulation (or simple repairing) in textile industry.
In general, the interested known free end type spinning machine of the patent is the machine being fully automated, wherein doffing and repairing
Circulation is mended to be executed by single trolley (trolley).
Inside the single trolley, some devices are individually main/dedicated for circulation of doffing, and other devices it is main/specially
Door is for repairing circulation.
According to possible known solution, in the various operations executed in above-mentioned repairing circulation, the pickup of yarn, standard
Standby and processing is carried out by means of following machine:
1. spool air-breathing mouth；
The unit 2. yarn is felt relieved；
3. yarn preparatory unit；
4. introducing and extraction group.
Air-breathing mouth picks up the end of the yarn of the spool formed.It includes an optical sensor, for checking
The presence of yarn；In general, the device is driven by stepping motor.
Yarn feels relieved unit from mouth capture yarn and directs it to preparatory unit.The device is driven by the cylinder.
Yarn preparatory unit pulls in yarn, chopped strands and the end for preparing repairing；In addition, it is equipped with a device,
To ensure to catch yarn by means of introducing/extraction group roller.The group causes driving by means of cylinder and by low-voltage device.
Finally, introducing and extraction group take out yarn from preparatory unit, bring it near the delivery outlet of spinning unit, and draw
Length needed for entering to reach rotor throat.These groups are driven by means of stepper motor (rotation) and by means of cylinder (lateral displacement)
It is dynamic.
Hereinafter, the repairing circulation of known solution will be described in further detail, to more fully understand purport of the present invention
The technical issues of solving.
Therefore, people should have been stopped by system from spool, be raised from dilatory cylinder subsequently, by means of stop board that
A moment starts.Trolley near " spinning head ", will execute repairing here.The opening device of arrangement has been used to open and spin
Yarn unit.
At this point, spool is promoted from stop board by means of spool lift arm；Spool air-breathing mouth intervention, from rest position
Inclination is set, spool nearby (distance is about 5/6mm) is dropped to.Air-breathing is driven simultaneously.The end section of mouth has wide with spool
The suction chamber of equally wide low form of cut or cuts is spent, to allow undefined position of the end on spool to be picked.
Spool is rotated by means of reverse rollers, to allow that yarn ends are identified and extracted from spool.Meanwhile in the same trolley
On specific device processing rubber yarn extract roller hole.
The search of end is continued, until the optical sensor (there are sensors for yarn) of mouth verifies its presence: if its
It is not detected, then repeat search is twice.If end is not picked although having carried out various trials, then machine is managed
System is given a warning by means of (lamp/sound), requests operator intervention to solve the problems, such as.
Once yarn is picked, mouth is just moved back into resting position.This, which is moved back to, allows yarn to be stretched, and is dropped to using inclination
The yarn centering unit of operating position, provides space for interference, yarn is made to be in certain position.By means of special " V " type
Chamber, centering unit intercept yarn and are channeled near yarn preparatory unit.Spool stops at this time.
Mouth promotes the scissors for unit of feeling relieved to unclamp yarn to cut by yarn preparatory unit slightly forward and is picked up by suction
The yarn taken.The yarn of cutting is drawn into and takes out when spool air-breathing mouth returns to its resting position.
The new end just manufactured is guided by preparation device, the preparation device by means of compressed air jet worn with
Prepare to be used for subsequent repairing step.Once yarn is ready to complete, introduces and extraction group is mobile in place to pick up yarn.
Meanwhile the specific device on same trolley cleans rotor, cleans funnel, closes spinning unit and prepare net, disappear
Except the fiber of damage.Then, spool is reduced on stop board by spool lift arm.
The ready end picked up by introducing group passes through between the roller for extracting roller first, then draws at spinning unit
Enter near yarn efferent duct, and to reach rotor throat in insertion tube.Essence when yarn ends are located in rotor throat
Degree determines the quality of repairing.
It is introduced into yarn ends " triggering " spinning of rotor throat, so that by the fiber of rotor machining at the end suitably prepared
Portion's aggregation, to realize the continuity of yarn produced.Actual repairing is physics realization.
At this point, being restored in other devices on same trolley by restoring to extract the contact between roller and its motor reel
Yarn extracts, and at the same time, activation network supply roller again: restore yarn production.
Spool is reduced on dilatory cylinder (drag cylinder) to the rotation for restarting spool followed by stop board
Turn: reactivating pickup, completes repairing and recycle and restore normally to rotate.Trolley, which is completed, to be recycled and can be free to exit.
Such as from described content it should be understood that the operation executed by the machine of background technique is considerably complicated and also need
Want the relatively long waiting time.
Summary of the invention
Therefore, above-mentioned known solution has the disadvantage and limits, and is primarily due to following facts: they be related to using
Complicated and expensive mechanical system come pick up yarn ends, make yarn is placed in the middle, prepare yarn ends for following repairing and from
Yarn is inserted into/is taken out to preparatory unit to bring it near the delivery outlet of spinning unit, this is for subsequent practical repairing step
It is all required.
Other than increasing the complexity and cost of machine, this known device is also added needed for executing broken yarn repairing
Time.
Therefore, feel to need to solve the disadvantage that mention with reference to background technique and limitation.
The present invention provides a kind of free end type spinning machines, including at least one spinning head, spinning head have spinning unit
With the winder unit being wound into, spinning unit produces yarn and web is introduced spinning rotor, wherein is wound into
Winder unit by from below spinning unit obtain spool on yarn be wound on pipe ,-at least one repairing trolley energy
It is mobile, so as to can by the repair operation for the yarn repaired trolley self poisoning near each spinning head and execute damage,
In ,-repairing trolley includes: air-breathing mouth unit, and air-breathing mouth unit forming is to execute grasping yarn ends and to be subsequent
Repairing and prepare all operations of yarn ends；And the introducing group of yarn, the introducing group of yarn are configured to grasping and are in advance
Repairing and the yarn ends prepared, and yarn ends are taken on the spinning rotor of spinning unit, are being formed with will pass through
Yarn repairs yarn ends.
Further, air-breathing mouth unit include air-breathing mouth, the yarn in air-breathing mouth there are sensor, be used for
The cutter device of chopped strands and the preparation device of yarn ends.
Further, air-breathing mouth unit includes air-breathing mouth, and air-breathing mouth unit pulls yarn, air-breathing from air-breathing mouth
It include chamber, the intracavitary forced passage or access defined for pulling in yarn in mouth.
Further, air-breathing mouth includes intake section, and intake section pulls in yarn and forms straight cylindrical section, yarn
Line is transported in straight cylindrical section, and air intake duct has internal diameter.
Further, air-breathing mouth is provided with flow redirector, and flow redirector is pneumatically between straight cylindrical section and air-breathing
Between pipe, flow redirector turns to the axis of the straight cylindrical section of air-breathing mouth, to force the track for the yarn being inhaled into
Inside recess portion.
Further, pass through the offset of the axis in flow redirector, straight cylindrical section of the flow redirector from air-breathing mouth
Offset.
Further, it deviates according to the following formula and related to nominal inside diameter Dn: 1/2Dn < C < 3/4Dn.
Further, flow redirector has tangent bend portion: in the straight cylindrical section of the air-breathing mouth of flow redirector upstream
Axis between the first bending section；And the second bending between flow redirector and the axis of the air intake duct in flow redirector downstream
Portion.
Further, it is put down each other in the axis of the straight cylindrical section of the air-breathing mouth of the air intake duct upstream of flow redirector
Row.
Further, throat has the bottom for accommodating yarn, wherein bottom is relative to vertical with its main extension axis
Plane have along its extension in air-breathing mouth variable orifice angle.
Further, at cutter device, orifice angle is between 80 ° and 100 °.
Further, at the preparation device of end, orifice angle is between 75 ° and 95 °.
Further, the section of the access of the air in the straight cylindrical section of air-breathing mouth is quasi- from intake section to end
Standby device reduces, and reduces from end preparation device to cutter device.
Further, the reduction by area in the straight cylindrical section of air-breathing mouth is between 2.7% and 3.2%.
Further, near recess portion, cutter device is positioned in air-breathing mouth.
Further, near recess portion, the end preparation device of yarn is positioned and is configured to compressed air
Jet stream is directed on end.
Further, spinning machine includes at least one trolley that doffs, the trolley that doffs can be located at each spinning head and
Be equipped with for from tube holder basket pickup tube and pipe is moved to the winder unit being wound into a pair of of tailstock equipment.
Further, it repairs trolley and doffs trolley at least partly from each other across so as to along the spinning head of spinning machine
Patrol path it is overlapped.
The method that the present invention also provides a kind of in the type spinning machine of free end repairs yarn, method the following steps are included:
Step a: step b: the yarn by means of being mounted on spinning head drives there are sensor detection yarn breakage using by spinning head
Stop board stop spool, step c: meanwhile, take repairing trolley to spinning head, the fracture of yarn occurs in spinning head
Place, step d: rotating spool to start to scan for the end of the yarn of disconnection on spool by means of repairing trolley, and
And simultaneously take the air-breathing mouth unit for repairing trolley near spool to, to pass through the actuating getter device for being connected to air-breathing mouth
Suck end, step e: stop spool after picking up yarn into air-breathing mouth, step f: actuating is contained in vacuum noz(zle)
Cutter device in portion removes cutting member from spool sidesway, and capture passes through the new end being cut into and by means of being contained in air-breathing
End preparation device in mouth prepares new end with compressed air jet, step g: the yarn feeding list of actuating repairing trolley
Member, yarn feeding unit grasp ready yarn ends and will be in the ready yarn ends insertion spinning units.
Further, simultaneously with step d, arrangement e and step f, repairing trolley is cleared up spinning rotor and/or right
The funnel of spinning rotor is cleared up, and then carries out step g, and spool is reduced on relevant stop board.
Further, also with step f and step g simultaneously, spinning head prepare web, abandon impaired web and use
Net supply roller supplies Fresh fats to spinning rotor.
Further, during step g, ready end is picked up by feed unit, is managed by repairing trolley, and platform is repaired
End is clamped between the supply roller of feed unit by vehicle, takes end to spinning unit.
Further, the supply roller of feed unit is assisted by the effect of reverse rollers, and reverse rollers prevent energy by rotating scroll
The formation of the undesirable ring engaged with various mechanisms, to keep suture to tense without relaxation.
Further, during step g, yarn is inserted into particular path by feed unit, and end is introduced in yarn
In line output channel, wherein release device is set along path, keeps additional length of yarn, root when equipping release device
According to requiring, yarn is discharged by spinning head, so that end be allowed to reach spinning rotor.
Further, repairing trolley enables spinning head and leaves spinning head after completion task, and wherein, spinning head point
From release device, end reaches the throat of spinning rotor and triggers spinning, so that the fiber handled by spinning rotor is appropriate quasi-
Standby end aggregation, to realize the continuity of the yarn of production.
The application's has the technical effect that the quantity for reducing the device for being adapted to carry out circulation；Reduce device and another
Yarn access between one device；Higher precision during yarn cutting step；Improve the efficiency that machine integrally manages.
Detailed description of the invention
By the way that below to it preferably with the description of non-limiting embodiment, other features and advantages of the present invention will become more
Add obviously, in attached drawing:
Fig. 1 shows the schematic cross sectional views of the free end type spinning machine of embodiment according to the present invention；
Fig. 2 shows the perspective sectional views of the spinning rotor of the spinning machine of Fig. 1；
Fig. 3 shows 1 perspective view of the air-breathing mouth unit of the spinning machine of embodiment according to the present invention；
Fig. 4 shows 1 cross-sectional view for amplifying details IV shown in Fig. 3；
Fig. 5 to Figure 10 shows the perspective schematic view of the component of spinning machine of the invention during yarn repairs sequence；
Figure 11 to Figure 12 shows the perspective view of air-breathing mouth unit according to the present invention；
Figure 13 shows the front view of the air-breathing mouth unit of Figure 11；
Figure 14 shows the nozzle unit of Figure 13 along the cross-sectional view of the section XIV-XIV of Figure 13；
Figure 15 shows the side view of the air-breathing mouth unit of Figure 13；
Figure 16 shows the cross-sectional view of the nozzle unit of Figure 13 section XVI-XVI shown in Figure 15；
Figure 17 shows the cross-sectional view of the nozzle unit of Figure 13 section XVII-XVII shown in Figure 15；
Figure 18 shows the cross-sectional view of the entrance of the air-breathing mouth unit of Figure 13；
Figure 19 shows the front view of spinning head of the invention；
Figure 20, which is shown, according to the present invention draws enrolled perspective view；
Figure 21 shows the side view of step of the embodiment according to the present invention by yarn feeding into spinning machine.
The part of common element or element will be given the same reference numerals between embodiment described below.
Specific embodiment
With reference to aforementioned figures, number 4 generally illustrates the overall schematic of type spinning machine in free end according to the present invention.
Particularly, spinning machine 4 includes at least one spinning head 8, the volume that spinning head 8 has spinning unit 12 and is wound into
Around unit 16, wherein the winder unit 16 being wound into will be wound from the yarn on the spool 18 that following spinning unit 12 obtains
On pipe 20.
Spinning unit 12 produces yarn 22 by the way that web to be introduced into spinning rotor 24.
Spinning machine 4 includes at least one movable type repairing trolley 28, so as to which its own is located in each spinning head 8
Near and execute damage yarn 22 repair operation.
Spinning machine 4 includes at least one trolley 32 that doffs, which can be positioned at each spinning head 8,
And it is equipped with such device, which is used for from tube holder basket pickup tube 20 and is moved to pipe 20 in known manner
On a pair of of the tailstock for the winder unit 16 being wound into.
Preferably, repairing trolley 28 and the trolley 32 that doffs at least partly penetrate each other, so as to along the spinning of spinning machine 4
First 8 patrol path overlaps each other.
Penetrating each other, which means that they have, shape and follows track, allows their phases in any middle section
It meets and passes through each other without interfering with each other.
Advantageously, repairing trolley 28 includes the introducing group 40 of air-breathing mouth unit 36 and yarn.
As being better described below, air-breathing mouth unit 36 is shaped to execute end and the preparation for catching yarn 22
All operations for subsequent repairing.The introducing group 40 of yarn is configured to catch the end for preparing the yarn 22 for repairing in advance
Portion, and bring it near the spinning rotor 24 of spinning unit 12, for repairing it with the yarn formed.
According to embodiment, there are sensors including the yarn in air-breathing mouth 44, air-breathing mouth 44 for air-breathing mouth unit 36
48, the device 56 of the end for the cutter device 52 of chopped strands 22 and for preparing yarn 22.
Air-breathing mouth 44 is pneumatic by means of suitable pipe-line system not shown in the figure and getter device not shown in the figure
Connection, the getter device can generate necessary low pressure to pull in yarn；In general, the getter device includes passing through motor
Rotate the fan placed.
Preferably, as being better described below, air-breathing mouth 44 includes being defined in it for pulling in yarn 22
The chamber 60 of forced passage or access.
Air-breathing mouth 44 includes the intake section 70 of slit-shaped, which pulls in yarn and form straight cylindricality
Part 72, yarn are conveyed in the straight cylindrical section 72.Straight cylindricality air-breathing part 72 has nominal inside diameter Dn.
According to one embodiment, air-breathing mouth 44 is provided with flow redirector 68, which is pneumatically inserted into entrance
Between part 70 and air intake duct, mouth (not shown) is inserted on the air intake duct.
The purpose of the device is to deviate the axis of air intake duct, so that the track of the yarn pulled in be forced to change with transit chamber 60
It is interior.Flow redirector 68 be constructed such that guarantee air-breathing bore size continuity, and avoid simultaneously any unexpected section and
Roughness variation may nipped clamping to avoid yarn.
Flow redirector 68 is opposite by offset (misalignment, misalignment, deviation) C of the axis in flow redirector 68
It is deviated in air intake duct；Preferably, this offset 68 is related with nominal inside diameter Dn according to the following formula: 1/2Dn < C < 3/4Dn.
Due to offset C, air stream and the yarn thus pulled in have tangent bend portion: the air-breathing in 68 upstream of flow redirector
First curvature 76 between the axis Y ' of the straight cylindrical section 72 of mouth, and in flow redirector 68 and it is located at flow redirector 68
Torsion 80 between the axis Y " of the air intake duct in downstream.It should be noted that in the upstream and downstream of flow redirector 68
Axis Y ', the Y " of air intake duct 72 are preferably parallel to one another.
In access between intake section 70 and flow redirector 68, by flow redirector 68 apply first bending 76 and
Second bending section 80 forces yarn tangentially through two bending sections itself, selects lesser apart from path；Which ensure that yarn
The position chamber that is always located in chamber 60 bottom 84 on.Bottom 84 is made of a part of chamber 60, which is designed for holding
Receive the yarn pulled in.
Chamber 60 preferably has relative to the air-breathing mouth with 68 upstream of flow redirector along the longitudinal extension of air intake duct 72
The symmetrical section of the axis Y ' of 72 straight cylindrical section 72 orthogonal transverse plane.
When passing through between each lateral part in air intake duct 72, the section of chamber 60 has slightly different size and shape
Shape.
According to embodiment, the bottom 84 of chamber 60, relative to the cutting plane vertical with the main outrigger shaft of chamber, along air-breathing mouth
Extension in 44 has the hole 100 of variable-angle.
According to possible embodiment, the chamber 60 in first part is relatively narrow, then broadens after the part of cutter device 52:
It ensure that more accurately positioning in cutting and preparation process, this will ensure that the better quality of subsequent repairing.
For example, the angle in hole 100 is between 80 ° and 100 ° at cutter device 52.
At end preparation device 56, the angle in the hole is slightly narrower, i.e., between 75 ° and 95 °.
Under any circumstance, the purpose of chamber 60 is to convey the yarn pulled in, generate turbulent flow as few as possible, which may
Upset the movement for carrying the air of yarn.
Therefore, the movement of the air in the straight cylindrical section 72 of air-breathing mouth 72 should be laminar flow as far as possible；Mesh thus
, the inner surface of the straight cylindrical section 72 of air-breathing mouth 72 connects and does not have roughness, this can be in order to air stream body
It is separated from wall, to generate turbulent flow.Turbulent flow will lead to the undesirable displacement of yarn, keep its position uncertain, to damage
The accuracy of relevant operation.
For this purpose, in order to air is not excessively increased by guaranteeing enough inspiratory phenomenons in the case where speed, in fact,
In the case where excessively not reducing air duct portion, the air duct portion between three parts has rebuild the hydraulic effect assembled
Fruit, three parts are respectively as follows:
1. intake section 70,
2. end preparation device 56,
3. cutter device 52,
It is limited by the reduction of area.According to the actual test carried out, it has already been proven that, it is best reduce compromise be
It is reduced between 2.7/3.2% by region.
According to embodiment, cutter device 52 is located near the chamber 60 in air-breathing mouth 44.
According to embodiment, according to known system, near the chamber 60, the end preparation device 56 of yarn 22 is positioned,
It is configured to be directed to compressed air jet on the yarn ends 22, to be ready for subsequent repairing step.
The operation of type spinning machine in free end according to the present invention will now be described.
Specifically, spinning machine 4 operates continuously, and produces yarn by means of spinning unit 12；Meanwhile it repairing trolley 28 and doffing
Trolley 32 makes an inspection tour various spinning heads 8；If desired, repairing trolley 28 executes required all repair operations.
In fact, mending course is activated in the case where yarn breakage.
Particularly, method for repairing and mending the following steps are included:
A) yarn breakage 22, such as another yarn by means of being mounted on spinning head are detected there are sensor 49,
B) stop spool 18 by means of the stop board activated by spinning head 8,
C) simultaneously, repairing trolley 28 is taken at spinning head 8, the fracture of yarn 22 occurs there,
D) by means of repairing the spool roll-over unit (not shown) spinning reel 18 of trolley 28, to start search in spool 18
The end of the yarn 22 of upper fracture, and at the same time the air-breathing mouth unit 36 for repairing trolley 28 is taken near spool 18, with logical
It crosses and is properly attached to the actuating getter device of air-breathing mouth 44 and sucks end,
E) stop spool 18 after picking up yarn 22 into air-breathing mouth 44, (for example, by being contained in air-breathing mouth 48
There are the operations that sensor detects for interior yarn),
F) cutter device 52 being contained in air-breathing mouth 36 is activated, removes cutting member from spool side 18, capture is by cutting
New end and the end preparation device 56 by means of being contained in air-breathing mouth 44 made of cutting, being prepared with compressed air jet should
New end,
G) the yarn feeding unit 40 of actuating repairing trolley 28, the yarn feeding unit 40 catch ready yarn ends
And it is inserted into spinning unit 12.
According to possible embodiment, with step d), e) and f) simultaneously, repairing trolley 28 handles the cleaning of spinning rotor 24,
And/or the cleaning of the funnel of the spinning rotor 24, and step g) is then arrived, spool 18 is reduced to relevant stop board
On.
According to possible embodiment, with step f) and g) simultaneously, spinning head 8 prepares web, abandons impaired fiber
Net simultaneously supplies Fresh fats to spinning rotor 24 by means of net supply roller.
Preferably, during step g), prepared end is picked up by the introducing group of yarn 40, by repairing trolley 28
End is clipped between its supply roller 64 to take yarn to spinning unit 12 by management, repairing trolley 28.
According to embodiment, the enrolled supply roller 64 of drawing of yarn 40 is assisted by the effect of reverse rollers, and the reverse rollers are logical
Cross make spool 18 rotate, prevent from forming the undesirable ring that may engage with various mechanisms, so as to make yarn keep tension without
Relaxation.
According to embodiment, during step g), by means of the yarn displacer 51 of feedway, yarn 22 passes through introducing group
In 40 insertion particular paths, and end is admitted to yarn output channel.
Along such path, it is preferably set up release device 50, the yarn of extra length is kept in equipment, according to
Request, the yarn are discharged by spinning head 8, and end is allowed to reach the throat of spinning rotor 24.
At this point, repairing trolley 28 enables spinning head 8 to activate and leave the spinning head upon completion of its task.
The head 8 that spins separates release device, and end reaches the throat of spinning rotor 24 and " triggering " spins, so that by spinning
The fiber of the processing of rotor 24 is assembled in the end suitably prepared, to realize the continuity of the yarn of production.
The step of repairing circulation, is summarized as follows, and indicates specified with TF (spinning head) and CR (repairing trolley) respectively in bracket
Execute the device of each step.
Moment after the yarn breakage detected since sensor, by the following occurs:
1) stop winding reel 18 (TF) by being promoted winding reel 18 from dilatory cylinder by means of stop board；
2) rubber yarn extracts the hole (TF) of roller；
3) trolley 28 will be repaired close to relevant spinning head 8, stop and stablize (CR) by actuating parking brake；
4) hole (CR) of spinning unit 12；
5) spinning rotor 24 and funnel (CR) are cleaned；
6) spinning unit 12 (CR) is closed；
7) spool 18 is lifted into (CR) from stop board；
8) by means of reverse rollers spinning reel 18 to allow to search for end (CR)；
9) suction is executed by air-breathing mouth 44 appropriate to capture the end (CR) of spool 18；
10) stop the rotation (CR) of spool 18；
11) block the arrival (CR) of the feed unit of yarn by the way that yarn to be clipped between roller 64,
12) by a small amount of air-breathing come chopped strands (CR)；
13) prepare newly-generated yarn ends (CR)；
14) spool 18 (CR) on stop board is reduced；
15) prepare net, damaged fibers are discharged, and Fresh fats are supplied to spinning rotor 24 by the rotation of net supply roller
(TF)；
16) after being sent into specific predefined paths by introducing group, it is defeated that preprepared end is introduced into yarn
Out (CR) in channel；
17) it sends approving signal and spins head 8 (CR) to enter；
18) parking brake is discharged by repairing trolley 28 and leaves spinning head 8 (CR)；
19) yarn 22 is discharged by specific release device；The extra length being especially to maintain allows to reach spinning rotor
24 throat (TF)；
20) roller is extracted by resetting rubber to restore the extraction of yarn；Yarn production restores (TF)；
21) spool 18 is reduced on dilatory cylinder to the rotation (TF) for reactivating spool 18 by stop board.
With the recovery of reel wound, completes to repair and restore to spin.
As shown, some previous operations also may be performed simultaneously, because they are by being located in repairing trolley 28 (CR)
Or the different device in spinning head 8 (TF) executes.
Type spinning machine in free end according to the present invention and free end type spinning machine are appreciated that from the content having been described
The method of yarn repairing allows to overcome the shortcomings that proposing in background technique.
For the solution of background technique, new yarn picking up system has the advantages that several.
Major advantage is:
1. reducing the quantity for being adapted to carry out the device of circulation；
2. reducing the yarn access between a device and another device；
3. the higher precision during yarn cutting step；
4. improving the efficiency that machine integrally manages.
In more detail, the reduction for being adapted for carrying out the device of circulation needs to reduce overall dimensions certainly, is not only physical unit
Overall dimensions, but also volume needed for the movement including actuation means itself.
The quantity for reducing device helps to limit cost, because not only reducing redundancy structure (sensor, motor, actuating
Device etc.), and reduce relative energy consumption.
The global reliability of system will also improve, because the possible breakdown of mechanical part will reduce (quantity reduction) and go back
Necessity maintenance to device will be reduced.
In addition, the integrated of different device allows to eliminate extra function, such as, will repeat in preparatory unit to collect
Suction system, centering unit or the various sensors of waste material and the electric motor system for allowing device displacement.
Device using small number of manipulation yarn means the yarn access from a device to another device
Quantity is reduced；Particularly, instead of by known system (nozzle/centering unit, centering unit/preparatory unit, preparatory unit/supply
Unit) three via intermedias imagining, the present invention only provides a via intermedia (nozzle/feed unit).
Less access allows to save the time that yarn is transferred to another device from a device.
Small number of access also means that a possibility that yarn " is escaped " during transfer is lower, as a result is restoring to recycle
When lose machine time to restore yarn.
The another advantage for reducing yarn transfer is, for example, leading to during the access from a device to another device
The moving component for crossing rubbing device reduces the impaired possibility of yarn itself.
Another benefit of new picking up system bring is that higher precision will be brought in cutting step: ready yarn
End between the point clamped between the roller of feed unit at a distance from be precisely preserved in the etching process, and since yarn is not necessary
Further access, therefore precision having the same are crossed, which will be admitted to yarn efferent duct.
The length of the thread segment is accurately to be very important during the step of being inserted into yarn efferent duct: being repaired
The repairing quality realized during step, and therefore the quality of entire reel for yarn and thread is decisively determined by it.
The another advantage obtained from new picking up system is machine pipe caused by the reduction due to the yarn treatment time
It manages more efficient, is also reduced because not only reduce access, and during yarn access in the case where " loss " possible
Program re-executes the time.
The raising of efficiency results also from the reduction (less engine, less sensor etc.) of energy consumption and operates it
Needed for less energy.In addition, reducing maintenance (with less equipment) has positive influence to whole machine efficiency.
In order to meet possible and specific needs, those skilled in the art can be to machine and method for repairing and mending of the invention
It is variously changed and changes, it is still, all these to be included in the scope of the present invention defined in following following claims.
Claims (25)
1. free end type spinning machine (4), including at least one spinning head (8), the spinning head have spinning unit (12) and twine
Around coiled winder unit (16), the spinning unit produces yarn (22) and web is introduced spinning rotor (24),
Wherein, the yarn on spool (18) that the winder unit (16) being wound into obtains the spinning unit (12) from below
Line is wound on pipe (20),
At least one repairing trolley (28) can move, so as to can be by the repairing trolley self poisoning in each spinning head
(8) near and execute damage yarn (22) repair operation,
It is characterized in that,
The repairing trolley (28) includes: air-breathing mouth unit (36), and the air-breathing mouth unit forming is to execute grasping
Yarn ends and all operations for preparing yarn ends for subsequent repairing；And the introducing group (40) of yarn, the yarn
Introducing group be configured to the yarn ends that grasping prepares in advance for repairing, and take the yarn ends to the spinning
On the spinning rotor (24) of unit (12), repaired with will pass through the yarn formed to the yarn ends.
2. free end type spinning machine (4) according to claim 1, which is characterized in that air-breathing mouth unit (36) packet
Include air-breathing mouth (44), be located at the air-breathing mouth (44) in yarn there are sensor (48), for cutting the yarn
(22) preparation device (56) of cutter device (52) and the yarn ends.
3. free end type spinning machine (4) according to claim 1 or 2, which is characterized in that the air-breathing mouth unit (36)
Including air-breathing mouth (44), the air-breathing mouth unit pulls the yarn, the air-breathing mouth (44) from the air-breathing mouth
In include chamber (60), the intracavitary forced passage or access defined for pulling in the yarn.
4. free end type spinning machine (4) according to claim 3, which is characterized in that the air-breathing mouth (44) include into
Oral area point (70), the intake section pull in the yarn and form straight cylindrical section (72), and the yarn is transported to
In the straight cylindrical section, air intake duct has internal diameter (Dn).
5. free end type spinning machine (4) according to claim 4, which is characterized in that the air-breathing mouth (44) is provided with
Flow redirector (68), the flow redirector are described pneumatically between the straight cylindrical section (72) and the air intake duct
Flow redirector (68) turns to the axis of the straight cylindrical section (72) of the air-breathing mouth, to force the yarn being inhaled into
The track of line is internal by the recess portion (60).
6. free end type spinning machine (4) according to claim 5, which is characterized in that by the flow redirector (68)
Axis offset (C), cylindrical section (72) offset of straight of the flow redirector (68) from the air-breathing mouth.
7. free end type spinning machine (4) according to claim 6, which is characterized in that the offset (C) according to the following formula and with
Nominal inside diameter Dn is related: 1/2Dn < C < 3/4Dn.
8. according to free end type spinning machine (4) described in claim 5,6 or 7, which is characterized in that the flow redirector has double
Bending section: the air-breathing mouth of the flow redirector (68) upstream the straight cylindrical section (72) axis (Y ') it
Between the first bending section (76)；And the axis of the flow redirector (68) and the air intake duct in the flow redirector (68) downstream
The second bending section (80) between line (Y ").
9. free end type spinning machine (4) according to claim 8, which is characterized in that in the institute of the flow redirector (68)
The axis (Y ', Y ") for stating the straight cylindrical section (72) of the air-breathing mouth of air intake duct upstream is parallel to each other.
10. the free end type spinning machine (4) according to any one of claim 3 to 9, which is characterized in that the throat
(60) there is the bottom (84) for accommodating the yarn, wherein the bottom (84) is relative to vertical with its main extension axis
Plane have along its extension in the air-breathing mouth (44) variable orifice angle (100).
11. free end type spinning machine (4) according to claim 10, which is characterized in that at the cutter device (52),
The orifice angle (100) is between 80 ° and 100 °.
12. free end type spinning machine (4) described in 0 or 11 according to claim 1, which is characterized in that in end preparation device
(56) at, the orifice angle is between 75 ° and 95 °.
13. the free end type spinning machine (4) according to any one of claim from 3 to 12, which is characterized in that the air-breathing
The section of the access of air in the straight cylindrical section (72) of mouth is quasi- from the intake section (70) to the end
Standby device (56) reduce, and reduce from the end preparation device (56) to the cutter device (52).
14. free end type spinning machine (4) according to claim 13, which is characterized in that the air-breathing mouth it is described straight
Cylindrical section (72) in the reduction by area between 2.7% and 3.2%.
15. the free end type spinning machine (4) according to any one of claim from 3 to 14, which is characterized in that described recessed
Near portion (60), the cutter device (52) is positioned in the air-breathing mouth (44).
16. the free end type spinning machine (4) according to any one of claim from 3 to 15, which is characterized in that described recessed
Near portion (60), the end preparation device (56) of the yarn is positioned and is configured to draw the jet stream of compressed air
It leads on the end.
17. free end type spinning machine (4) according to any one of the preceding claims, which is characterized in that the spinning machine
It (4) include at least one trolley that doffs (32), the trolley that doffs can be located at each spinning head (8) and be equipped with and be used for
A pair of of tailstock of the winder unit (16) being wound into is moved to from tube holder basket pickup tube (20) and by the pipe
Equipment.
18. free end type spinning machine (4) according to claim 17, which is characterized in that the repairing trolley (28) and institute
The trolley that doffs (32) is stated at least partly from each other across so as to along the patrol road of the spinning head (8) of the spinning machine (4)
Diameter is overlapped.
19. the method for repairing yarn (22) in free end type spinning machine (4) according to any one of the preceding claims,
It is characterized in that, the described method comprises the following steps:
Step a: detecting the yarn (22) there are sensor (49) by means of the yarn being mounted on the spinning head and be broken,
Step b: stopping the spool (18) using the stop board by spinning head (8) driving,
Step c: meanwhile, take the repairing trolley (28) to the spinning head (12), the fracture of the yarn (22) occurs
At the spinning head,
Step d: make the spool (18) rotation by means of the repairing trolley (28) to start on the spool (18) to disconnected
The end for the yarn opened scans for, and at the same time by air-breathing mouth unit (36) band of repairing trolley (28)
To near the spool (18), to suck the end by the actuating getter device for being connected to the air-breathing mouth (44),
Step e: stopping the spool (18) after picking up the yarn into the air-breathing mouth (44),
Step f: the cutter device (52) that actuating is contained in the air-breathing mouth (44) is removed from the spool side (18)
Cutting member, new end of the capture by being cut into and the end preparation device by means of being contained in the air-breathing mouth (44)
(56), prepare the new end with compressed air jet,
Step g: the yarn feeding unit (40) of actuating repairing trolley (28), the yarn feeding unit grasping are ready
The ready yarn ends are simultaneously inserted into the spinning unit (12) by yarn ends.
20. according to the method for claim 19, which is characterized in that same with the step d, the arrangement e and the step f
When, the repairing trolley (28) clears up spinning rotor (24), and/or carries out to the funnel of the spinning rotor (24) clear
Reason, and the step g is then carried out, the spool (18) is reduced on relevant stop board.
21. method described in 9 or 20 according to claim 1, which is characterized in that also simultaneously with the step f and the step g,
The spinning head (8) prepares the web, abandons impaired web and uses net supply roller to the spinning rotor (24)
Supply Fresh fats.
22. method described in 9,20 or 21 according to claim 1, which is characterized in that during the step g, ready end
Portion is picked up by the feed unit (40), is managed by the repairing trolley (28), and the end is clamped in by the repairing trolley
Between the supply roller (64) of the feed unit, the end is taken to the spinning unit (12).
23. according to the method for claim 12, which is characterized in that the supply roller (64) of the feed unit (40) by
The effect of reverse rollers assists, and the reverse rollers prevent to engage with various mechanisms undesirable by the rotation spool (18)
The formation of ring, to keep suture to tense without relaxation.
24. the method according to any one of claim from 19 to 23, which is characterized in that described during the step g
Yarn (22) is inserted into particular path by the feed unit (40), and the end is introduced in yarn output channel,
Wherein, release device is set along the path, keeps additional length of yarn when equipping the release device, according to wanting
It asks, the yarn is discharged by the spinning head (8), so that the end be allowed to reach the spinning rotor (24).
25. according to the method for claim 24, which is characterized in that the repairing trolley (28) enables the spinning head (8)
And the spinning head is left after completion task, and wherein, the spinning head (8) separates the release device, the end
It reaches the throat of the spinning rotor (24) and triggers spinning, so that by the fiber of the spinning rotor (24) processing suitable
When the end of preparation is assembled, to realize the continuity of the yarn of production.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102017000135982 | 2017-11-27 | ||
| IT201700135982 | 2017-11-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109837619A true CN109837619A (en) | 2019-06-04 |
| CN109837619B CN109837619B (en) | 2023-10-27 |
Family
ID=61527444
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821961583.4U Withdrawn - After Issue CN209669418U (en) | 2017-11-27 | 2018-11-26 | Free end type spinning machine |
| CN201811416677.8A Active CN109837619B (en) | 2017-11-27 | 2018-11-26 | Open-end spinning machine and method for repairing yarn in an open-end spinning machine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821961583.4U Withdrawn - After Issue CN209669418U (en) | 2017-11-27 | 2018-11-26 | Free end type spinning machine |
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| Country | Link |
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| EP (1) | EP3489399B1 (en) |
| CN (2) | CN209669418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114207202A (en) * | 2019-07-30 | 2022-03-18 | 里特机械公司 | Yarn joining method for jet spinning machine spinning nozzle and jet spinning machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3489399B1 (en) * | 2017-11-27 | 2021-06-09 | Savio Macchine Tessili S.p.A. | Open-end type spinning machine with enhanced intake nozzle unit and relative piecing method |
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- 2018-11-26 CN CN201821961583.4U patent/CN209669418U/en not_active Withdrawn - After Issue
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| CN114207202A (en) * | 2019-07-30 | 2022-03-18 | 里特机械公司 | Yarn joining method for jet spinning machine spinning nozzle and jet spinning machine |
| CN114207202B (en) * | 2019-07-30 | 2023-11-10 | 里特机械公司 | Yarn joining method for spinneret of jet spinning machine and jet spinning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3489399B1 (en) | 2021-06-09 |
| EP3489399A1 (en) | 2019-05-29 |
| CN109837619B (en) | 2023-10-27 |
| CN209669418U (en) | 2019-11-22 |
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