CN102808247B - For the aspirator of the service trolley of free-end spinning machine - Google Patents
For the aspirator of the service trolley of free-end spinning machine Download PDFInfo
- Publication number
- CN102808247B CN102808247B CN201210173176.8A CN201210173176A CN102808247B CN 102808247 B CN102808247 B CN 102808247B CN 201210173176 A CN201210173176 A CN 201210173176A CN 102808247 B CN102808247 B CN 102808247B
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- Prior art keywords
- suction
- yarn
- generating means
- mouth
- service
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
- B65H54/26—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores having one or more servicing units moving along a plurality of fixed winding units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/70—Other constructional features of yarn-winding machines
- B65H54/707—Suction generating system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Device for generating the suction needed for the service trolley at the spinning unit of free-end spinning machine performs intervention circulation, described device includes being arranged on the service trolley and by motor-driven rotating air suction device, and the motor is controlled so as to be operated with the periodically variable speed according to the demand for being used to service the suction mouth that each intervention is circulated.
Description
Technical field
The present invention relates to free-end spinning machine, that is, rotor spinning machine.Free-end spinning machine is typically included in the spinning
The single spinning unit of multiple arranged on two operating surfaces (two fronts) of machine, each spinning unit includes spinning rotor
And collector unit, the fiber of the individualized (singularised) of rove is made twisted yarn by wherein spinning rotor, by inciting somebody to action
Yarn clearer is placed between both parts and after quality control is carried out to yarn, and the collector unit is by yarn winding on quill
To form spool.By pulling yarn and yarn winding being formed into the spool in its surface, the spool passes through following roller
Son drives and rotates, and spool is held on the roller below this during being formed.Because collector unit is equipped with Yarn guide device,
With the coil that intersects on spinning reel, the Yarn guide device is by yarn axially moving back and forth distribution in volume for yarn
On the outer surface of axle.
Background technology
The structure of each spinning position is illustrated with front view and in fig. 2 with side-looking in Fig. 1.This structure is
It is more fully described in the EP patent applications 1712663A2 of the applicant.
To introduce bottom-up below includes each portion of the spinning unit 1 of spinning unit itself 2 and collector unit 3
The rove of parallel fibers is transformed into part, these parts the yarn of the twisting being wrapped on spool.
Spinning unit 2 includes：
- S strips or rove, are deposited in cylindric supply container 4 with double-helix,
- 4 cylindric supply containers,
- 5 feed rolls 5,
- 6 infundibulate conveyers 6,
- 7 carding machines (card) with dentation pin cloth, the carding machine is supplied spinning rotor 8,
The spinning rotor of the yarn F of -8 twisting,
The yarn of-F twisting, yarn F axially comes from central opening 9 and receives adding for the rotation from rotor 8
Twist with the fingers,
- 9 central openings,
- 11,12 a pair of taking-up rollers,
- 14 couples of yarn F carry out the yarn clearer of quality control.
Collector unit 3 includes：
- 15 yarn detection sensors,
The compensator of -16 change in path length in spinning unit 2 and yarn F between the saltation point on spool,
- 21 yarn guides, for distributing the yarn driven by motor 20,
- 20 motors, the motor drives longitudinal axis 22 to move back and forth, identical with other units in spinning machine,
- 22 longitudinal axis,
- 25 spools for collecting yarn F, the spool is supported by spool retaining arm 26,
- 26 spool retaining arms, the spool retaining arm is equipped with two idle tail blocks (idle tailblock),
- 27 idle tail blocks, it can open and be shelved on being driven in driven roller or collection cylinder 29 with holding
The quill 28 of spool 25,
- 28 quills,
- 29 driven rollers or collection cylinder.
The automatic free-end spinning machine designed in recent years is equipped with service trolley (service trolley) C, and it is maked an inspection tour
Each operating surface of spinning machine, and be parked in need their spinning unit above automatically carry out needed for intervention
(interventions).For free-end spinning machine more long, up to four service trolleys are set, they in spinning machine two
Operated on individual operating surface.
Required intervention has three types substantially：
- " startup ", when beginning is spinned, when spinning machine does not work, simultaneously and then be placed on for new quill by start machine
In each station, startup is performed by being reconnected with auxiliary yarn, and by made yarn winding new winding
To form spool on pipe, auxiliary thread segment has been removed before this；
- " reconnect ", when yarn is interrupted due to cutting or any other reason of yarn clearer, and also
Without the length reached needed for completing spool, reconnected and recovered same using the Manufactured yarn on spool side
Winding on individual spool.The principal character of reconnect program includes：During opening, cleaning and close rotor, it is ready to
The afterbody of rove, captures and prepares the end on spool side, restarts rotor and recovers supply, again by the ready end of institute
Portion is incorporated into rotor, and the end that will be connected to newly formed yarn extracts again, is again wrapped around on collector unit.
It is programmed that cleaning circulation is suitable with circulation is reconnected, it is caused by the fracture of controlled weft.
- " doffing ", doffing is carried out after length needed for having reached completion spool.The spool for being completed is discharged, and so
Start the unit as described above afterwards.
This intervention for making an inspection tour dolly is related to the doffing of spinning position and starts (or being again started up) operation, and relates to
And repairing is due to natural cause or by yarn breakage caused by the yarn clearer instruction in spinning process.
Generally, these interventions drive roller 29 to separate with it by by spool 25, stop its motion and by spool 25 or
The driving of its quill 28 is transferred to the process auxiliary drive roller that is arranged on service trolley to perform.Generally, dolly is equipped with their own
Control unit, the intervention demand according to spinning unit at the moving of car to unit to be serviced, and proceeds intervention.
The motion and operation of each component of operation circulation needed for the execution of the control unit control dolly of dolly.
In each device and intervention programming arts of the service trolley of automatic free-end spinning machine, the applicant is patent
EP340863, EP443220, EP473212, EP1524339, EP1524229, EP1524230 and patent application EP
Owner's (among other things) of 1712663A2.
These prior art literatures are may be referred to, to obtain the more details structurally and operationally of service trolley.
The intervention procedure performed as service trolley include dolly performed by a great deal of step, move to it is single from
By end spinning unit or station, and it is connected to its spinning rotor and is connected to its collector unit above, temporarily
Property ground these components and their center control and the driving of machine are disconnected, and the driving of utilization these dollies oneself is right
These components are operated, and spinning can be brought back to normal service speed by the driving of themselves, in being then again started up
Centre control, and spinning unit is returned to its normal driving.
, it is necessary to suction by being arranged on dolly during the service operations of the dolly at free-end spinning machine unit
Mouth carries out suction service, these suction mouths be brought to the various services components for operating successively closer to.For example falling
In cylinder and startup circulation, there is provided following service：
- movable mouth, for aspirating and coupling reserve fraction, the movable mouth picks up from its spool, aspirates and protect
Auxiliary yarn is held, until catching the new new yarn collected on quill,
- fixed preparation device, it is operated on deposit yarn, by will deposit yarn keep tensing to cut and
Prepare tail end to aspirate yarn, the yarn line segment that cut-in without ball is cut side by side,
- fixed mouth, for emptying the fiber discharged in set-up procedure,
- movable coiling-resistant mouth, the extraction after reconnection and before spinning unit is returned to is walked temporarily
In rapid, it restores and discharges yarn coil,
- be used for wish to deposit some coils on the top of quill when yarn has reached required length and from volume
Axle aspirates the movable mouth of yarn,
Again as an example, in circulation is reconnected, essentially identical service is provided by same component, but
Have been wrapped around being performed on the yarn on spool：
- for the movable mouth from spool suction, it picks up, aspirates and keep the yarn for having manufactured so that its is heavy
New connection.During reconnect, for by yarn supplied to spinning unit with the motion that is reconnected during, phase
The thread segment that same mouth is included within preparing between end and spool keeps under tension,
The thread preparation device of-spool, keeps tensing to be aspirated by way of cutting and preparing tail end by yarn
Yarn, the yarn line segment that cut-in without ball is cut side by side,
The mouth of-the fiber discharged in set-up procedure for emptying,
- movable coiling-resistant mouth, the interim extraction step after reconnection and before spinning unit is returned to
In rapid, it recovers and discharges yarn coil, and this is described in detail in EP1712663.
For example, the suction mouth of spool may need flow and vacuum high high, for capture end, but one
Denier end has been captured, during other of the circulation, it is sufficient that low vacuum degree.For laying in thread segment
Mouth needs vacuum and low flow high, until having captured new yarn in quill.Preparation device and waste material are taken out
Suction works several seconds under condition of high vacuum degree and low discharge, is then worked under rough vacuum, until the yarn that transmission has been prepared for.It is anti-
Curling mouth needs low discharge and variable vacuum.
In the prior art, the pumping requirements of service trolley are generally met by the central aspirator of machine, it is described in
Centre aspirator is connected to the accessory channel on two operating surfaces for being arranged in free-end spinning machine.These passages are equipped with for every
The transmission valve of individual spinning unit, service trolley is connected when reaching with the transmission valve every time, and suction clothes are carried out in low pressure
Business, then closes connection when it leaves.Every now and then, the suction that service trolley will be obtained from the public assignment channel of center suction
It is assigned in its each component.Center system allows for providing vacuum degree high under any circumstance, even if in most of clothes
In the case of being actually needed more moderate vacuum degree in business circulation step, the more moderate vacuum degree can be by means of
Choke valve will be aspirated through and obtained to be throttled.
In the prior art, it is by the suction service produced by fixed central location for various yarn treatment stations are provided
Very universal, the central location connects everywhither science and engineering position by distribution system.Distribution system and its pipeline, accessory and valve
The relative loss factor having has become the source of energy loss.The example of this batch operation and its defect can be in patent Shen
Please be found in EP1707524.This part of document is related to be used in bobbin-winding machine to be picked up by movable mouth needed for the yarn of reel side
Suction service.Described bobbin-winding machine is connected including multiple with shared negative voltage supply device (a common vacuum supply)
Winder station：Negative pressure employed in each winder station is partly adjusted by the switch valve controlled by stepper motor
Value.It is necessary, of course, to Continuous Drive centralization negative pressure generation unit when that need not service even also always promptly to carry
For the peak suction value needed for possibility.Especially, when service is needed, the vacuum degree that can actually provide is depended greatly on
The quantity and distance of the work station of the service are needed simultaneously.This mode for producing negative pressure quite consumes energy, and especially right
Be not for free-end spinning machine it is very reliable because these spinning machines in productivity ratio model higher at about 70 meters
Length is provided with even more than 500 spinning positions on two operating surfaces.
For free-end spinning machine, this centralized technical scheme is not without shortcoming, and its most obvious shortcoming is such as
Under.The suction carried out using accessory channel is distributed particularly with complexity for machine long and consumed energy.Centralized suction system
It is only entire machine and one vacuum of level is provided, and vacuum can not be changed according to the requirement of single spinning unit.
If two or more service trolleys need suction simultaneously, the vacuum levels during aspirating inevitably drop
It is low.
The content of the invention
It is used for the self-contained unit for producing suction the present invention relates to be arranged on dolly, the self-contained unit connects again spinning
Connect, doffing and provide the suction needed for each spinning unit during starting circulation and allow to circulate the phase in the intervention needed for execution
Between adjust vacuum degree.
Specifically, the present invention can improve the intervention efficiency of dolly and overcome the shortcoming of centralization suction service.
In order to preferably highlight technical scheme and technical problem to be solved proposed by the invention, in following explanation
In book the mode non-limiting as example be given wherein be provided with according to aspirator of the present invention, for servicing freedom
Hold the dolly of spinning machine.
According to the present invention, there is provided a kind of for generating and to provide the suction generating means of aspiration vacuum, in open-end-spinning
Service trolley at the spinning unit of machine needs the aspiration vacuum to perform intervention circulation, it is characterised in that the suction
Generating means include being arranged on the self-contained unit for being used to generate suction on the service trolley, and the self-contained unit generation is by each
Needed for spinning unit suction and each intervention circulation execution during adjust vacuum degree.
In order to be shown more clearly that the features and advantages of the present invention, below with reference in figures 3,4 and 5 as example without
It is to limit its typical embodiments for schematically showing of purpose and the present invention will be described.
Brief description of the drawings
Fig. 1 and 2 respectively with front view and side view show according to its typical embodiments, must be taken by service trolley
The main part of the open-end-spinning station of business.The left part of Fig. 2 schematically shows and is arranged on free-end spinning machine
Spinning position before service trolley C size.Fig. 1 and 2 illustrates the technical problems to be solved by the invention.
Fig. 3 shows that the apparatus according to the invention is used as the function of suction feeding mechanism, described to be pumped in open-end-spinning
Unit is performed in being in its stopping.
Fig. 4 A show centrifugal aspirator (such as aspirator 40) with different rotating speeds numerical value as parameter, according to volume flow
Measure the changing features of aspiration vacuum level Δ P (in units of Pascal) (in units of mc/h).Fig. 4 B show the centrifugation
Formula aspirator is equally by parameter, absorbing also according to volume flow (in units of mc/h) by different rotating speeds numerical value
The changing features of power.
Fig. 5 shows structure of the apparatus according to the invention in terms of injection service, wherein involved in service is blown
Part shown with thicker lines.
Specific embodiment
As shown in figure 3, suction generating means include single pump unit 40, each dolly at least one.This suction
Unit includes being provided with the rotating air suction device of the rotor 41 driven by motor 42 (being represented by dashed line), and the motor 42 is controlled so as to root
According to the demand of the suction mouth to be serviced, the speed of periodically-varied is operated.The side of being preferable to carry out of the invention
Case, this rotor 41 is the centrifugal rotor driven by brushless electric machine 42, the control unit that the brushless electric machine 42 passes through service trolley
45 are driven according to frequency.Dolly from free-end spinning machine receive motor needed for electric energy and dolly other components needed for
Electric energy, and it will not receive centralization suction service.
The technical scheme can change vacuum degree during the intervention of dolly is circulated, and the vacuum degree is for capture yarn
Thread end and to hold them under extended state be required.
Flows and power and reference of the Fig. 4 for needed for the centrifugal aspirator for the service trolley of free-end spinning machine
The example of the change (progression) of the aspiration vacuum level of air.Fig. 4 A show centrifugal aspirator (such as aspirator
40) with different rotating speeds numerical value as parameter, according to the aspiration vacuum level Δ P of volume flow (in units of mc/h) (with Pascal
Be unit) changing features.Fig. 4 B show that the centrifugal aspirator is equally with different rotating speeds numerical value as parameter, equally
The changing features of the power for being absorbed according to volume flow (in units of mc/h).
As shown in figure 3, the suction side of rotor 41 includes which is provided with the intake manifold 46 of filter 47, the filter keeps
The waste material discharged during each circulation, i.e. yarn line segment and fiber.
Filter 47 includes vertical container, and it is small up to about one that its volume and being shaped so as to can collect long filament and fiber
When work period, in a reservoir insertion with 20 to 25 mesh net tilt filtration wall 48, and the net terminate in row
In the bottom of discharge bucket.
By this arrangement, when suction stream stops, the most of coarse fodder for being intercepted and being kept by filter wall 48 spontaneously under
In falling following hopper 49, so as to filter wall be emptied.Hopper 49 is connected under vacuum by some positions
Discharge line and it periodically empty.
In the suction side of aspirator 40, such as in the upper part of filter 47, safety valve 43, safety valve are installed
43 only open when centrifugal aspirator 40 is used for downstream supply fluid stream, and it is used for from service in centrifugal aspirator 40
Closed during each mouth suction fluid stream of dolly.
In figure 3, on the left side branch pipe of manifold 46, be disposed with the connecting portion being connected with required suction service, its
Shown with thicker lines in Fig. 3.For example, referring to reconnect circulate, pipeline 50 with for spool yarn suction and manipulation
Movable mouth 51 connect, and it is intercepted by valve 52.On pipeline 50, sensing is installed before the suction mouth 51 of bobbin
Device 53, the sensor 53 is used for detecting that yarn whether there is, and the sensor is connected with the control unit 45 of dolly.Control is single
Unit 45 controls the opening and closing of valve 52 again so that suction mouth applies to aspirate from bobbin, and is driven by according to frequency
To control the rotating speed of motor 42 to apply desired vacuum degree and flow value.After valve 52 has already turned on, by this hair
The aspirator of bright offer according to the predetermined rough vacuum level of the yarn types to be produced initially starting mouth
51。
The movable commonly required vacuum degree of mouth is about 2000Pa.
If sensor 53 detects there is yarn immediately, vacuum need not be improved and it is enough to the yarn that will be aspirated
Line simply keeps launching until yarn is brought back into spinning unit and the opening 9 of rotor 8 is especially taken to.At this moment, can be with
Interrupt and pass through suction of the mouth to spool yarn.On the other hand, if sensor 53 is not immediately detected the presence of yarn,
Vacuum is gradually stepped up by improving the speed of motor 42, until occurring representing the signal that yarn is present.Permissible velocity increases
Until predetermined maximum, this generally corresponds to generate the vacuum of about 4000Pa, then meaningless more than the maximum, because
Yarn can not be captured but tangle or be entangled with.In this case, it is necessary to operating personnel intervene.
Then the yarn captured by bobbin is supplied to preparation device.
As shown in figure 3, on the left side branch pipe of manifold 46, pipeline 60 is connected with thread preparation device 61 and is blocked by valve 62
Cut.The parallelpiped 64 intercepted by valve 65 is connected with the suction mouth 66 of the waste material of thread preparation device.In the standard of yarn ends
Standby period, control unit 45 controls two opening and closing of valve 62 and 65, with the suction to preparation device 61 and to waste material
Mouth applies suction, and the rotating speed of motor is controlled with frequency driving, for use in providing desired vacuum degree level.
Yarn prepares and the commonly required vacuum degree of garbage collection is 4000 to 7000Pa.
In preparation, with predetermined vacuum degree control aspirator 40, the vacuum be enough to by yarn remain stationary as so as to
Scissors cut and so that its end is taken off into fiber with compressed air, and aspirates the yarn and fiber fragment of release.
After yarn is brought back into spinning unit, start more detailed in patent application EP1712663A2
The Anti-curling mouth 72 of explanation.This Anti-curling mouth 72 be arranged on be connected with manifold 46, on the pipeline 70 that is intercepted by valve 71.
Sensor 73 is installed on Anti-curling mouth 72, these sensors had both detected that yarn whether there is or detect the yarn in it
The length of circle, and be connected with the control unit 45 of dolly, little by little to unclamp the coil.Control unit 45 controls valve 71 again
Opening and closing, while determine the rotating speed of motor 42, with frequency drive motor to apply quantitative to Anti-curling mouth
Suction, and determination bobbin 25 during the step of spinning unit is returned to its normal operating after yarn reconnect
Rotating speed.
Vacuum degree needed for Anti-curling mouth 72 is usually 8000 to 12000Pa.
The operation of doffing circulation is carried out when bobbin has arrived at required length, and needs to start new bobbin, or
This stylish treatment starts.The initial operation of doffing circulation is similar with those initial operations for reconnecting circulation, but auxiliary
Helping on yarn is carried out, and the auxiliary yarn then must be from the bobbin removal having begun to.This auxiliary or deposit yarn are drawn
Enter in spinning rotor 8 with from spinning rotor " fishing takes " fiber to produce new yarn.Taken out by laying in the movable of yarn
Nozzle section come carry out lay in yarn operation, the movable suction mouth from its bobbin pick up, aspirate and remain auxiliary yarn
Until it is connected with new yarn, auxiliary thread segment is eliminated and by new thread grip on new collection quill.Once
Will auxiliary thread grip on new quill, then it works as normal yarn, except by it from bobbin get on divided by
Outward.
For example, referring to doffing circulation, the movable suction mouth 81 of yarn is laid in by the pipeline 80 intercepted by valve 82 and suction
Enter manifold 46 to connect.On pipeline 80, sensor 83 is installed before the suction mouth 81 of deposit yarn, sensor inspection 83
Yarn is surveyed to whether there is and be connected with the control unit 45 of dolly.Control unit 45 again control valve 82 opening and closing so that
Suction mouth applies suction from deposit yarn, and by controlling the rotating speed of motor 42 with frequency drive motor, to apply
Desired vacuum levels and flow.
Once having captured auxiliary yarn, then it is ready to and is incorporated into spinning rotor 8, so as to as again
Fished like that in connection circulation and take new yarn.Auxiliary yarn is continuously inhaled into its mouth, until new yarn has been arrived
Up to the enough length for being used to make it be tied on new quill 28.Once new yarn is fixed on bobbin, then auxiliary yarns
Line part is cut off and is sucked away from its mouth.Lay in yarn movable mouth 81 therefore capture end initial step and
Vacuum degree higher is needed in the final step for removing deposit yarn, and intermediate steps only need to less suction with so that auxiliary
Yarn is helped to keep simply launching.
Two commonly required vacuum degrees are about respectively in for laying in these steps that the mouth of yarn is operated
5000Pa and 8000Pa.
Once being established from spinning unit to the thread path for collecting bobbin by new yarn, then spin again with normal
Reconnect loop start.
Fig. 3 shows that the apparatus according to the invention is used as the function of suction feeding mechanism, described to be pumped in open-end-spinning
Unit is performed in being in its stopping.
In the function of this suction supply, the stream (flow) of aspirator 40 is terminated by the current divider 91 with discharge part
Pipeline 90 and from its outlet side discharge.In figure 3, current divider 91 opens block piece 92, and the flow point is flowed to logical
To in the pipeline 94 of air.
When it is used as suction feeding mechanism, the stream conveyed by aspirator 40 from including suction mouth 51,61,66,
72 and 81 suction side advance to the corresponding outlet side of pipeline 94, to be discharged into air.
Apparatus according to the invention is characterized in that the suction feeding mechanism that can be not only configured to according to reference picture 3
(the suction feeding mechanism leads on the service trolley being arranged in before spinning unit and using the suction side of aspirator 40
Mouth), and be also used as the compression blows air source of supply for the dolly in translation, and no longer keep off single in spinning
Before unit, but the outlet side of aspirator 40 is make use of, as described below.
Preferred embodiment of the invention, according to accompanying drawing shown in Figure 5, device of the invention is along thereon
Blows air source of supply is actually also served as during each operating surface translation of the free-end spinning machine for being arranged with spinning unit.
This blows air is generally ejected into impurity (such as dust and yarn for wherein needing most and removing and formed in spinning
Fine hair) spinning unit position.Therefore, injection mouth is arranged on reference picture 1 bottom of from corresponding to the height for being serviced
On the one or both sides of the service trolley that portion arranges upwards, for example：
- initial strip guiding piece；
- feed rolls 5；
- infundibulate conveying device 6；
- from carding machine 7 to the entrance area of the fiber of rotor 8 conveying air；
- yarn clearer 14；
The sensor 15 that-detection yarn is present；
- compensator 16 and yarn guide 21, and other positions sensitive for impurity deposition, the positioning of such as dolly are delayed
Rush device, the slide rail of dolly, the surface of bobbin, etc..
The jetting pressure value about 140-200Pa commonly required for being blown mouth, and flow is about 300mc/
h。
Injection service is generally performed during trolley translation, and is interrupted during dolly service stopping.
Structure of the apparatus according to the invention in terms of injection service is in fig. 5 it is shown that wherein involved in service is blown
And part shown with thicker lines.
As described above, the safety valve 43 being arranged in the upper part of filter 47 is stayed open, and it is arranged on suction point
All remained turned-off with the valve 52,62,65,71 and 82 on part.During being blown, the flow of aspirator 40 is by with current divider
91 pipelines 90 for terminating are discharged from its outlet side, and the pipeline is closed by the discharge that block piece 92 will open into air, and by institute
State discharge guiding to one or more vertical distributor 100 being arranged at service trolley side.
Blast nozzle 101 is installed along the vertically extending portion of distributor 100, so as to the stream that is conveyed by aspirator 40 is from taking out
Inhale side (suction side include safety valve 43) advance to outlet side (outlet side include being arranged to spinning unit wait passed through
It is blown and the corresponding each blast nozzle 101 of each position of being serviced).
The apparatus according to the invention is relative to the prior-art devices for being provided with the centralization suction service being distributed along machine
With obvious progressive.
Due to completely eliminating suction assignment channel and these assignment channels by interrupting the connection of control and dolly, institute
To realize significantly reducing in terms of the machine cost of free end.Distribution system is generally by without effective seal and making
Structural system into the quite big loss of the vacuum degree in the position for being serviced is made.Assignment channel needs volume under any circumstance
Outer minimum flow, with the enough transporting velocities for realizing being conveyed in the channel for fine hair and long filament, the even meeting of these passages
It is long more than 40 meters and sizable load loss occurs.
By the present invention, energy consumption is significantly reduced, because the aspirator on dolly allows just to process for performing
Air capacity needed for service cycle, due to partly generating vacuum and no any distribution load loss, so the air capacity
Want much less.Keep and transport and periodic purge on dolly due to fine hair, so no longer needing extra bare flow.
The vacuum degree for being provided can according to the yarn requirement for processing and according to the circulation step for being carried out come
Regulation.For centralization suction, because vacuum degree must be always at maximum, so above-mentioned is that impossible realize
, because two dollies worked and with different requirements may be provided with identical operating surface.But passage
Length it is very long and aerodynamics inertia is very big, this does not allow to adjust vacuum degree to servicing spinning unit
It is actually needed.
Aspirator of the invention can significantly improve the efficiency of dolly and the output capacity of free-end spinning machine, by
In the success rate raising of capture yarn and the reduction in terms of the driving time of yarn time and Anti-curling mouth, it is allowed to
The time of each service cycle significantly reduces.
Claims (12)
1. it is a kind of for generating and to provide the suction generating means of aspiration vacuum, the clothes at the spinning unit of free-end spinning machine
Business dolly needs the aspiration vacuum to perform intervention circulation, it is characterised in that the suction generating means include being arranged on
It is used to generate the self-contained unit of suction on the service trolley (C), the self-contained unit generation is as needed for each spinning unit
Aspirate and adjust vacuum degree during the execution of each intervention circulation.
2. it is used to generate and provide the suction generating means of aspiration vacuum as claimed in claim 1, it is characterised in that described to take out
Inhaling generating means includes single pump unit, and the pump unit includes the rotation with the rotor (41) driven by motor (42)
Turn aspirator, the motor is controlled so as to periodically become with the demand according to the suction mouth for servicing each intervention circulation
The speed of change is operated.
3. it is used to generate and provide the suction generating means of aspiration vacuum as claimed in claim 2, it is characterised in that described turn
Sub (41) serve as reasons the centrifugal rotor of " brushless " motor (42) driving, the control unit (45) that the motor passes through the service trolley
It is driven with frequency.
4. it is used to generate and provide the suction generating means of aspiration vacuum as claimed in claim 2, it is characterised in that described turn
The suction side of sub (41) includes intake manifold (46), and filter (47) is provided with the intake manifold, and the filter keeps
The waste material discharged during these circulations.
5. it is used to generate and provide the suction generating means of aspiration vacuum as claimed in claim 4, it is characterised in that the mistake
Filter (47) includes vertical container, and the tilt filtration wall being made up of the net of 20 to 25 mesh is inserted with the vertical container
(48), and the vertical container low portion with discharge hopper (49) termination.
6. it is used to generate and provide the suction generating means of aspiration vacuum as claimed in claim 4, it is characterised in that described
The suction side of aspirator (40) is provided with safety valve (43), and the safety valve is only in centrifugation aspirator (40) for downstream supplying
Opened during fluid stream, and when centrifugation aspirator (40) from each mouth of the service trolley for sucking fluid stream
Close.
7. it is used to generate and provide the suction generating means of aspiration vacuum as claimed in claim 6, it is characterised in that the peace
Full valve (43) is in the upper part of the filter (47).
8. it is used to generate and provide the suction generating means of aspiration vacuum as claimed in claim 4, it is characterised in that for institute
Each coupling part of the suction service for needing is arranged on the intake manifold (46).
9. it is used to generate and provide the suction generating means of aspiration vacuum as claimed in claim 8, it is characterised in that for institute
Each coupling part of the suction service for needing includes：
- for movable mouth (51) place service pipeline (50), the movable mouth be used for suck and manipulate spool yarn,
- the pipeline (60) being connected with thread preparation device (61),
- the pipeline (64) being connected with the mouth (66) of the waste material for aspirating yarn preparation,
- the pipeline (70) being connected with Anti-curling mouth (72),
- the pipeline (80) being connected with the movable mouth (81) for suction deposit yarn.
10. it is used to generate and provide the suction generating means of aspiration vacuum as claimed in claim 9, it is characterised in that one
Or more connecting pipe (50,60,64,70,80) intercepted by each valve (52,62,65,71,82) and be provided with sensor (53,
73,83), these sensors are used to detect the presence of yarn and be connected with the control unit (45) of dolly, described control unit
Control the valve opening and closing and by with frequency motor come the rotating speed of controlled motor (42), the phase to provide
The vacuum levels and flow value of prestige.
11. as described in one in claim 2-10 for generating and the suction generating means of aspiration vacuum, its feature are provided
It is that the outlet side of the aspirator (40) is discharged by the pipeline (90) for terminating at current divider (91), and the current divider exists
Block piece (92) is opened and is diverted to fluid stream and leads to air by the suction generating means when being used as air-breathing feeding mechanism
Pipeline (94) in, or the current divider it is described suction generating means be used as injection feeding mechanism when utilize block piece (92)
The discharge line of air is led in closing, and fluid stream is incorporated into more injections distributor (100).
The 12. suction generating means for being used to generating and providing aspiration vacuum as claimed in claim 1, it is characterised in that described
Intervention circulation is that the reconnect spinned is circulated, doffing circulates and start circulation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000978A ITMI20110978A1 (en) | 2011-05-30 | 2011-05-30 | SUCTION DEVICE FOR SERVICE TROLLEYS FOR OPEN-END YARNS |
| ITMI2011A000978 | 2011-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102808247A CN102808247A (en) | 2012-12-05 |
| CN102808247B true CN102808247B (en) | 2017-06-06 |
Family
ID=44554788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210173176.8A Active CN102808247B (en) | 2011-05-30 | 2012-05-30 | For the aspirator of the service trolley of free-end spinning machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2530193B1 (en) |
| CN (1) | CN102808247B (en) |
| IT (1) | ITMI20110978A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ2015232A3 (en) * | 2015-04-03 | 2016-10-12 | Rieter Cz S.R.O. | Method of and apparatus for the removal of a yarn defective section from a spinning machine spinning station |
| CZ2015300A3 (en) * | 2015-04-30 | 2017-01-25 | Rieter Cz S.R.O. | A method of spinning yarn at the workstation of a rotor spinning machine and a device for its implementation |
| IT201600071598A1 (en) * | 2016-07-08 | 2018-01-08 | Savio Macch Tessili Spa | METHOD OF LEVERAGE IN AN OPEN-END TYPE SPINNING MACHINE |
| EP3489398B1 (en) * | 2017-11-22 | 2022-11-23 | Savio Macchine Tessili S.p.A. | Open-end spinning machine with improved yarn waste discharge device and related yarn waste discharge method |
| CN108660555A (en) * | 2018-05-16 | 2018-10-16 | 东华大学 | Rotor spinning machine connector trolley gas port access device |
| EP3748054B1 (en) * | 2019-06-06 | 2023-02-22 | Lakshmi Machine Works Ltd. | Ring spinning machine comprising a lappet tilting apparatus and an automatic yarn piecing assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127722A (en) * | 1994-07-07 | 1996-07-31 | W.施拉夫霍斯特公司 | Yarn Connecting apparatus used in spinning machine for producing cross bobbin |
| US6311468B1 (en) * | 1999-02-09 | 2001-11-06 | Volkmann Gmbh & Co. | Device for producing a twisted yarn by an integrated spinning and twisting process as well as fiber feed tube |
| CN1432674A (en) * | 2002-01-18 | 2003-07-30 | 里特机械公司 | Spinning machine |
| CN100577546C (en) * | 2005-04-01 | 2010-01-06 | 欧瑞康纺织有限及两合公司 | Spinning machine for producing cross winding bobbin |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1217527B (en) | 1988-05-06 | 1990-03-22 | Savio Spa | PROCEDURE AND DEVICE FOR DEPOSITING A WIRE RESERVE ON A TUBE WITHOUT WINDED WIRE |
| IT1239336B (en) | 1990-02-23 | 1993-10-20 | Savio Spa | DEVICE AND PROCEDURE FOR THE PREPARATION OF THE GARMENT OF THE THREAD FOR STARTING OR RETURNING THE OPEN-END SPINNING |
| IT1243473B (en) | 1990-08-01 | 1994-06-15 | Savio Spa | DEVICE AND PROCEDURE FOR COLLECTING AND PREPARING THE BAND FOR REFITTING IN AN OPEN-END THREADING MACHINE |
| ITMI20032003A1 (en) | 2003-10-16 | 2005-04-17 | Savio Macchine Tessili Spa | TRAVEL SERVICE DEVICE FOR OPEN-END YARN SPINNING UNITS |
| ITMI20032006A1 (en) | 2003-10-16 | 2005-04-17 | Savio Macchine Tessili Spa | DEVICE AND PROCEDURE OF DEPOSIT OF THE FILO RESERVE ON THE OPEN-END YARN TUBES |
| ITMI20032005A1 (en) | 2003-10-16 | 2005-04-17 | Savio Macchine Tessili Spa | SERVICE TROLLEY WITH OPEN END YARN |
| ITMI20050605A1 (en) | 2005-04-11 | 2006-10-12 | Savio Macchine Tessili Spa | WIRE MANAGEMENT DEVICE FOR SERVICE TROLLEYS FOR OPEN-END YARN |
-
2011
- 2011-05-30 IT IT000978A patent/ITMI20110978A1/en unknown
-
2012
- 2012-05-23 EP EP12169156.2A patent/EP2530193B1/en active Active
- 2012-05-30 CN CN201210173176.8A patent/CN102808247B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127722A (en) * | 1994-07-07 | 1996-07-31 | W.施拉夫霍斯特公司 | Yarn Connecting apparatus used in spinning machine for producing cross bobbin |
| US6311468B1 (en) * | 1999-02-09 | 2001-11-06 | Volkmann Gmbh & Co. | Device for producing a twisted yarn by an integrated spinning and twisting process as well as fiber feed tube |
| CN1432674A (en) * | 2002-01-18 | 2003-07-30 | 里特机械公司 | Spinning machine |
| CN100577546C (en) * | 2005-04-01 | 2010-01-06 | 欧瑞康纺织有限及两合公司 | Spinning machine for producing cross winding bobbin |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2530193A1 (en) | 2012-12-05 |
| ITMI20110978A1 (en) | 2012-12-01 |
| CN102808247A (en) | 2012-12-05 |
| EP2530193B1 (en) | 2015-11-18 |
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