CN102060215B

CN102060215B - Individual suction system for winding unit

Info

Publication number: CN102060215B
Application number: CN 201010551264
Authority: CN
Inventors: R·巴迪亚利; M·切奥林; G·科隆贝罗托
Original assignee: Savio Macchine Tessili SA
Current assignee: Savio Macchine Tessili SA; Savio Macchine Tessili SpA
Priority date: 2009-11-16
Filing date: 2010-11-16
Publication date: 2013-12-18
Anticipated expiration: 2030-11-16
Also published as: ITMI20092013A1; EP2322458A1; EP2322458B1; CN102060215A; IT1396438B1

Abstract

A winding unit served by a suction system which provides all the suction services required by the winding unit, in which such a suction system consists of a single suction device which individually equips each winding unit, each suction device being driven with a variable speed rotation rate value by the winding unit to give each time different depression values required by the winding organs.

Description

Independently suction system for winder unit

Technical field

The present invention relates to the independently aspirator of the winder unit for forming automatic winder.

Background technology

In industry, usually in the spinning stage, manufacture yarn (typically in ring spinner by yarn production in bobbin), be next winding portion subsequently, wherein yarn is from its bobbin unwinding, its all defect again being wound on package of purifying.Therefore, winding process is carried out in the bobbin-winding machine linked with Spining Robot.

The technical matters that will process and solve for clear and definite the present invention and it, with respect to the feature and advantage of prior art, are described with reference to the winding process of carrying out in a winder unit in a plurality of winder units forming automatic winder.In fact, bobbin-winding machine comprises a plurality of winder units, and these winder units are aligned along the front portion of machine and are equipped with common control and operating equipment.

Winder unit figure 1 illustrates its basic element of character, has wherein omitted the parts that play a secondary role for forming technical scheme of the present invention.Supply bobbin 1 carries out unwinding and pulls out line 2.Line 2 passes through from the unwinding group, and this unwinding group comprises parts 3 for clearance line, for detection of sensor 4 and the line take-up device 5 of the existence of line.Described line take-up device generally includes a pair of packing ring, and described a pair of packing ring is pressed in unwound yarn 2 between them toward each other and with the pressure of regulating and control, and the described line of advancing between them picks up with high winding speed.Along this path, also be provided with for end of yarn being carried out to the device 6 of joint, be commonly called wire terminal machine (splicer), when line disconnects due to fracture or due to the obstruction of the yarn cleaner 11 in the downstream that is located immediately at the wire terminal machine, need the yarn end of line of the disconnection that connects by

suction tube

9 and 10 and obtained by this wire terminal machine.The line of reeling is collected in package 12, and this package 12 is by take up roll 13 to be scheduled to the substantially invariable coil of wire around velocity pick, and described package is by 14 supportings of package supporting arm and rest on this take up roll 13.Package 12 pulls wire 2 of rotation, the bobbin from still remaining on locating dowel pin 15 1 picks up and unwinding with high winding speed to make it.

Bobbin suction tube 9 in the bobbin side can carry out angular movement α, and it makes the suction hood of suction tube self at first from unwinding group 3, catch the yarn end of line 2, in order to promoted according to rotation alpha, thereby takes the end of yarn to wire terminal machine 6.On the other hand, package suction tube 10 in the package side can carry out angular movement β, it makes the suction hood of package suction tube self at first from package 12, catch the yarn end of line 2, to reduce by rotation β, until it takes the yarn end of package side to wire terminal machine 6.

Suction tube

9 and 10 is connected to the device for generation of negative pressure, to recovering during the continuity of the line 2 between bobbin 1 and package 12 is got involved (intervention), described negative pressure is provided for catching and processing in the required negative pressure in the yarn end of bobbin side and package side.

It is that (that eliminates line cuts excess and damaged portion for correct size that online splicer 6 has received and cut two yarn ends, so-called " coarse fibre ", by

suction tube

9 and 10, they are sucked away) and correctly alignd after above-mentioned ready yarn end, wire terminal machine 6 thereby continue to carry out the operation that they are bonded together.Once bonding operation is carried out, thereby wire terminal machine 6 release wires make it turn back to its 12 coiling configuration from bobbin 1 to package.Winding process consists essentially of yarn and its defective part (with regard to mechanical conformability or size) of purification that unwinding is supplied with.At it, from bobbin 1 to package 12 path, line 2 is controlled by yarn cleaner 11, this yarn cleaner 11 detect it dimensional defects (about its laterally and length dimension).The detection size of each line 2 does not drop on the acceptable size scope (according to its calibrator quantity) of line when interior, yarn cleaner 11 order cut-out lines.

The cutter sweep of line can be included in yarn cleaner 11 self, is similar in Fig. 1, and it is similar to cutter 7 separates, and is depicted as between online sensor 4 and line take-up device 5.

Online 2 disconnect or cut off by ordering about of yarn cleaner 11 after, yarn cleaner itself is indicated and be there is no line to the control unit 16 of winder station.Except other function, the function of control unit 16 comprises that driving and control are for being re-engaged the program of process, and described connection for example is expressed as dotted line.

As a rule, the defect of just processed line 2 be due to the erratic behavior in spinning operation before or discountinuity, cause and can or distribute along the certain-length location of line more or less.Common again, in yarn cleaner 11 by the time have more or less the defect of extending during, yarn cleaner 11 has preferably only finished and the yarn time order rupturing operation that has been returned to its normal size when defect, so that provide without defect on the bobbin side and be suitable for engaged yarn end.Before cut-out, on the bobbin side, the part of defective yarn continues in the yarn cleaner by and is reeled around package 12.Yarn cleaner 11 detects the length of defective part and communicates with control unit 16, before by joint, recovering the continuity of line, must aspirate and remove the defective part be wound up in package 12, so that also provide the line with the yarn end that is suitable for engaging in the package side.Be wound on removing by take up roll 13 (package 12 is by take up roll 13 reversions) with by utilizing 10 pairs of lines of suction tube to be aspirated to carry out of defective part in package 12, described suction tube 10 rises against the surface (as shown in Figure 1) of package 12, until the length of the reversion of take up roll 13 is corresponding to the length of detected defective part.

Therefore, " coarse fibre " that suction tube must be processed and remove may have sizable length, even to remember, in current bobbin-winding machine, in the coiling path, the normal winding speed of pickup leads 2 is about 30m/sec, therefore, in any case from defect being detected to ordering and carry out the also yarn of corresponding several meters of a small amount of time cutting off.

When starting each new bobbin, need to pull out the yarn end of new bobbin, this yarn end has been positioned at pre-position usually; Usually, it installs to the place, top of the pipe of bobbin.For this reason, use the identical bobbin suction tube on bobbin 9 sides.

In winding process, be formed with the skein 2 (a balloon of thread) picked up with high winding speed around just processed bobbin 1, and produce a large amount of dusts, fiber and from the resistates of the fine hair of the line by unwinding.These impurity can cause sizable interference to arranging the sensor on online 2 path.In more advanced bobbin-winding machine model, these impurity remove from the path of line by being arranged near the bobbin 1 one or more dust suction tubes 20 that carry out unwinding usually.

The amount of the dust formed at the unspooling operation of bobbin depend on unwinding how advanced and linear coiling speed both.When bobbin starts, have less dragging (dragging) and form dust in a small amount, and when bobbin finishes existence larger drag and form more dust.Linear coiling speed is also depended in the generation of dust, substantially by centrifugal effect, embodies.

Therefore, as previously mentioned, the winder unit that forms bobbin-winding machine requires respectively to carry out suction operation substantially in following situation: recovering in the successional step of the yarn that disconnected and by remove the normal operating winding of dust with the path of cleaning line with dust suction tube 20 during.

According to prior art, be commonly referred to " dedusting " for the continuous handling that utilizes dust suction tube 20 to be aspirated, it needs low suction pressure head (low head suction), be approximately 50-100mm W.C. (water column), be 500-1000 pascal, and flow is about 50mc/h, for each unit, per hour there is the approximately energy consumption of 50-70Wh.

(be about 1-4 second for time of each intervention) in the situation that with variable frequency and with of short duration the duration and occur for recovering by

suction tube

9 and 10 and processing the suction operation of yarn end, but it also requires much higher swabbing pressure, be approximately 600-900mmW.C., be 6000-9000 pascal, in order to obtain catching the yarn end and connect validity and the safety of discharging scrap wire or " coarse fibre " while finishing in knotter or wire terminal device 6.The calibration criterion of setting according to the quality of line and yarn cleaner 11, can change in the boundary at non-constant width in the frequency of the bonding operation of bobbin unwinding process center line.

In the prior art, these provide for the concentrated lower negative pressure pump unit that carries out continuous sucking during normal winding by one or more concentrated high negative pressure pump units for discontinuous suction operation with by one or more usually in the winder unit place, the suction operation that carry out with high negative pressure and lower negative pressure that form automatic winder.This aspirator of two types all is connected on single winder unit, this winder unit has the network be comprised of two kinds of catchers, described two kinds of catchers are: suction operation is assigned to independently to the catcher of two pressure-reduction levels, and the catcher that receives and filter effluent.

In such workshop is arranged, each winder unit all with there is shut off valve (for example electric valve) high negative pressure aspirator that be placed in one, that it is total and be connected, this electricity valve is only opened in required suction operation process during the intervention on its end of yarn for line, thereby carry out required suction, continues the time quantum needed.On the other hand, the continuous lower negative pressure aspirator of distribution does not have shut off valve usually, even and it also remain connected to suction operation when winder unit is not carried out its normal running.

The layout of the suction operation of these set is not immaculate.For example, long machine is subject to forming the impact of inconsistent swabbing action of each winder unit of machine.It is sizable always keeping the consumption of power of the high negative pressure operation of operation.When many winder units need to operate simultaneously, the efficiency of discontinuous suction affects adversely: for example, new when a collection of when starting, or while starting suddenly when bobbin-winding machine is stopping after.In order to carry out the failure-free operation, therefore need restriction can require the high number of taking out the winder unit of pressure head operation simultaneously.The lower negative pressure suction that even still keeps continuous in all winder units during interference and inoperation is further energy dissipation.

In addition, can not change its suction value according to the operating parameter of single winder unit (the advanced degree of Yarn count, bobbin (advance degree), when catching end and engaging to the detection of low efficiency etc.).It does not have flexibility, and this flexibility will be conducive to operate the yarn of a plurality of batches simultaneously.

In same applicant's European patent EP 662441, continuous lower negative pressure suction operation for dedusting obtains by the independent aspirator for each winder unit, but the discontinuous high negative pressure suction operation of the suction tube for catching the yarn end is realized by concentrated aspirator.In same applicant's European patent application EP 1950162, continuous lower negative pressure suction operation for dedusting obtains by concentrated aspirator, but the discontinuous high negative pressure suction operation of the suction tube for catching the yarn end is obtained by the independent aspirator for each winder unit.

Summary of the invention

The object of the invention is to propose a kind ofly for the new suction that operates the winder unit that forms bobbin-winding machine, arrange, it has overcome above-mentioned defect and therefore has been different from concentrated suction system.According to a first aspect of the invention, a kind of bobbin-winding machine is provided, comprise a plurality of winder units, these winder units are aligned and are used suction system, described suction system provides single winder unit required suction operation, it is characterized in that, each in described winder unit all has independent rotation aspirator, described rotation aspirator is driven with variable speed by the control unit of winder unit, described rotation aspirator alternately carries out following operation: provide continuous lower negative pressure swabbing action to the suction tube that is positioned at the bobbin place with for dust removal operation, it repels discontinuous high negative pressure suction tube, perhaps provide discontinuous high negative pressure swabbing action to suction tube with the disconnection for getting involved line and joint, and for starting new bobbin, it repels continuous lower negative pressure suction tube, by the air-lock driven by control unit, opens and closes connecting pipe to realize described alternately repulsion.The aspect of the overview of described aspirator provides all suction operation required by the winder unit that forms bobbin-winding machine.

According to a further aspect in the invention, the method for winding that provides a kind of use to carry out according to described bobbin-winding machine, described bobbin-winding machine is equipped with a plurality of single aspirators that are provided to independently on each winder unit, it is characterized in that, in the stage of utilizing the high negative pressure swabbing action to be collected and catch the end of yarn, the type that negative pressure value disconnects about yarn is carried out accommodation.

According to a further aspect in the invention, a kind of method for winding that uses described bobbin-winding machine to carry out is provided, described bobbin-winding machine is equipped with a plurality of single aspirators that are provided to independently on each winder unit, it is characterized in that, in the stage of utilizing the high negative pressure swabbing action to be collected and catch the end of yarn, negative pressure value is carried out accommodation after common unsuccessful circulation, in order to carry out specific yarn, recovers circulation.

According to a further aspect in the invention, a kind of method for winding that uses described bobbin-winding machine to carry out is provided, described bobbin-winding machine is equipped with a plurality of single aspirators that are provided to independently on each winder unit, it is characterized in that, in the stage of utilizing the high negative pressure swabbing action to be collected and catch the end of yarn, negative pressure value is carried out accommodation according to the trend before of the type of yarn, the defect of being eliminated by cutting, winder unit.

According to a further aspect in the invention, a kind of method for winding that uses described bobbin-winding machine to carry out is provided, described bobbin-winding machine is equipped with a plurality of single aspirators that are provided to independently on each winder unit, it is characterized in that, during utilizing the lower negative pressure swabbing action to carry out the stage of continuous dedusting, negative pressure value is according to the advanced degree of bobbin unwinding and carry out accommodation according to the speed of reeling.

According to a further aspect in the invention, a kind of method for winding that uses described bobbin-winding machine to carry out is provided, described bobbin-winding machine is equipped with a plurality of single aspirators that are provided to independently on each winder unit, it is characterized in that, during utilizing the lower negative pressure swabbing action to carry out the stage of continuous dedusting, negative pressure value is carried out accommodation according to the degree of saturation specific humidity of filter.

According to a further aspect in the invention, a kind of method for winding that uses described bobbin-winding machine to carry out is provided, described bobbin-winding machine is equipped with a plurality of single aspirators that are provided to independently on each winder unit, it is characterized in that, be accompanied by for the opening of the valve of emissions filter, during valve is opened stroke, the air inlet valve of the negative pressure in discharge loop is also opened.

The accompanying drawing explanation

By the following explanation of carrying out to exemplary embodiments of the present invention, (provide as an example, be not used in the purpose of restriction), by the feature and advantage of the clearer aspirator according to the winder unit for bobbin-winding machine of the present invention, these exemplary embodiments mean in Fig. 1 to 4.

Fig. 1 shows the lateral plan of winder unit, and shows the technical matters that suction operation provided by the present invention will solve and arrange according to suction of the present invention.

Fig. 2 A-B shows respectively independently isometric view and the front elevation of the layout of the suction system of winder unit 23, and described winder unit is depicted as the bulk portion of parallelepiped-shaped.

Fig. 2 C-D shows respectively isometric view and the section drawing of an improved embodiment.

Fig. 3 shows the isometric sectional view for the details of the filter of " coarse fibre ".

Fig. 4 A, B, C, D show the performance that aspirator according to the present invention provided in its operating period.

The specific embodiment

In the technical scheme shown in Fig. 1 and 2, show independently pump unit 22, this pump unit 22 for utilizing dust suction tube 20 to carry out continuous lower negative pressure suction operation in order to remove dust and, for utilizing

movable suction tube

9 and 10 to carry out discontinuous high negative pressure operation, for each winder unit 23 of aligning along machine front, the pump unit of be set.

Such pump unit comprises that impeller is activated by motor 26 with impeller 25 rotation aspirators, and motor 26 executive commands are so that each need to be operated with the velocity of rotation changed according to winder unit.According to a preferred embodiment of the present invention, this impeller 25 is centrifugal impellers.

According to a preferred embodiment of the present invention, such motor 26 is the brushless motors with frequency drives by the control unit 16 of winder unit.

Such technical scheme makes and changes negative pressure value and become possibility, and this is necessary for the optimal processing of yarn in the lower negative pressure dust removal step continuous and in discontinuous step of catching the yarn end with high negative pressure.

For the unusual yarn of " dirty ", the lower negative pressure dedusting in winding process can remain on the value place higher with respect to the value of the yarn that is enough to be used in " cleaning ".Also can and carry out gradual change according to the coiling pickup velocity according to the unwinding degree of bobbin for the negative pressure value of dedusting, above-mentioned both directly have influence on the amount of dust of generation and the amount of the dust that will be sucked away from thread path.

On the other hand, with regard to catch discontinuously the yarn end with high negative pressure with regard to, for fluffing or through special yarn of twisting, can require for catching the negative pressure value place that the high negative pressure of engaged yarn end is higher in the value than being enough to be used in common yarn.Even the disconnection of line also has influence on greater or lesser difficulty and catches the yarn end, especially on the package side.For example, if line is the disconnection caused due to normal high-speed cutting, cutting be clean and the yarn end be easier to recover and require lower negative pressure suction value.Low speed cutting forms the afterbody of wearing and tearing more that more is adhered to package, when again starting, cutting part forms fluffy afterbody, the end of bobbin forms has the still less afterbody of the twist: in above all these situations, the yarn end all more is adhered to package and needs larger negative pressure value catch it and it is separated from package.

Therefore, the control unit 16 of winder unit 23 can drive aspirator 22 to change by the tachometer value to be scheduled to according to the disconnection form of line and must catch the determined high negative pressure value in yarn end in

suction tube

9,10.

As what schematically illustrated in Fig. 1, the dust suction tube 20 shifted out in handling device with the dust that lower negative pressure aspirates continuously is connected to the pump unit of winder unit 23 by passage 30, be inserted with air-lock 31 (for example electric valve) therebetween, the air-lock also control unit 16 by winder unit is driven and it is usually staying open during normal winding process.It closes during engaging intervention or in the maintenance in any case of not carrying out of reeling, thereby repels (excluding) continuous lower negative pressure dust suction tube 20.

As already mentioned,

suction tube

9 and 10 intercourses in normal winding operate discontinuously with the high negative pressure suction,

suction tube

9 and 10 catch respectively and Mobile Online's axle side on and the yarn end on the bobbin side, and with wire terminal machine 6, match with for recovering the continuity of line.They are connected to respectively the pump unit 22 of winder unit by passage 34, be inserted with air-lock 35 (for example electric valve) therebetween, air-lock also drives and usually keeps cutting out during normal winding process by the control unit 16 of winder unit, thereby repel discontinuous high negative pressure suction tube (9,10).

Air-lock 35 is opened during engaging intervention.Basically, be provided to the independently pump unit 22 of single winder unit 23 for operating pipeline 30 to carry out the lower negative pressure dust removal operation, or for operating pipeline 34 to aspirate for high negative pressure.When its winder unit does not activate, pump unit can be closed.

Fig. 2 A, B show into the single winder unit 23 of the bulk portion of parallelepiped-shaped with and the layout of the structure of the parts of suction operation.In order to make accompanying drawing clearer, according to the parts of suction system of the present invention, be exaggerated.

Suction tube

9 and 10 needed discontinuous suction operation and continuous suction operation are connected to pump unit 22 by pipeline 34 with by pipeline 30 respectively, and what they replaced opening and again closing.The discharge of aspirator 22 obtains by fan outlet 27, its position in the path away from line downwards by discharge current discharged to atmosphere in.Alternately, opening collector (open header) can be foreseen the discharge for the suction system of winder unit.

For on the pipeline 40 of suction operation that is connected to the segmentation between

pipeline

30 and 34, being furnished with wire gauze filter 41, this wire gauze filter 41 has the basic function of holding back " coarse fibre ", when it is connected to

suction tube

9 and 10 and while being activated under high negative pressure, described " coarse fibre " is removed by the high negative pressure of the aspirator 22 of upstream.Fig. 3 shows the isometric sectional view for the details of the filter 41 of " coarse fibre ".

Filter 41 comprises the container of arranging along pipeline 40, and wire gauze 43 is arranged in wherein for use in the material of holding back suction, and particularly from bonding operation and the scrap wire that remove from defective part place of yarn end.

Filter 41 is connected to the collection system for clean described filter 41 by pipeline 45 (with valve 46 interceptions), and system comprises small size main pipeline 50, the stream that described main pipeline 50 is arranged and received from whole winder units 23 from pipeline 45 along machine.Main pipeline 50 is operated by high negative pressure aspirator 51, described main pipeline 50 provide by pneumatic conveying periodically the material in the device of inherent filtration in the future 41 to be discharged into periodically to open with emptying concentrated filter 53 in.According to a preferred embodiment of the present invention, when its winder unit 43 is operating, the periodically clean each of each filter 41 only carried out a filter, in any case or a few cells 23 is carried out at every turn.This time action need several seconds, and carry out in the following manner: at first close air-

lock

31 and 35 and isolate aspirator 22 (therefore avoiding the clean winder unit 23 related in its normal running of filter 41) by the air-lock 57 of closing on the initial portion that is arranged in pipeline 40, then the air-lock 56 of the atmosphere air inlet entrance 55 of the blowoff valve 46 of opening conduits 45 and filter 41, and make aspirator 51 operations.Its swabbing action sucks and will be trapped in the material discharge filter 41 of wire gauze 43 bottoms by air from air inlet entrance 55, thereby described material is taken to the filter 53 that can be drained.

According to an improved embodiment of the present invention, on pipeline 40, cross filter 41 pressure gauge 48 is installed, usually be represented as " pressure differential indicator " (Δ P meter), it is shown in Figure 3.The degree of saturation specific humidity of the wire gauze 43 of filter 41 or the observed reading of blockage percentage and information make filter clean only when filter reaches a predetermined voltage drop value (and being no longer after a predetermined amount of time) carry out and become possibility.Such information also makes by changing gradually for the continuous sucking of dedusting and compensating possible pressure drop for the discontinuous suction of catching the yarn end becomes possibility.

The embodiment of another modification of the present invention illustrates with isometric view and section drawing respectively in Fig. 2 C-D, predict the installation for the valve 59 from the atmosphere air amount be arranged on concentrated filter 53, this valve 59 will use during the clean cycle of filter 41.

Air inlet valve 59 preferred arrangements are in the downstream of the filter wall of filter 53 or in other words, in the direct upstream of aspirator 51, it keeps continuous handling during the different filters 41 of the clean different winder units of adjoining land.The actuating of aspirator 51 makes the velocity amplitude (depression speed value) that produces negative pressure in main pipeline 50 and filter 53.What be accompanied by a valve in each valve 46 opens to discharge a pipeline in each pipeline 45, and therefore air inlet valve 59 opens the negative pressure of opening discharge loop during stroke at valve 46.The flow of corresponding increase changes the operation point of the aspirator 51 that reduces negative pressure value.This mode has been avoided when air-lock 56 is opened, and the yarn make filter 41 during the stroke of still opening of valve 46 in is hunted down.This possibility will make the sealing of valve 46 go wrong, and the efficiency according to suction system of the present invention and cost benefit are produced to adverse influence.Along with opening of air inlet valve 59, the undercapacity of its negative pressure is with the resistance that overcomes loop and be not enough to when valve 46 is opened from filter 41 suction yarns.When valve 46 is opened fully, air inlet valve 59 is closed the operation point of returning ortho states and aspirator 51 and is returned at once the required negative pressure value of cleaning and filtering 41.Once the yarn be trapped in filter 41 is drained, valve 46 cuts out and other the cleaning operation of other filter 41 of winder unit is proceeded.The operation of the independent suction system for each winder unit according to the present invention is in conjunction with shown in Fig. 4 A-D.Fig. 4 is the example of the trend (trend) of the independently centrifugal aspirator of all suction operation required for winder unit required suction negative pressure, flow and power.Fig. 4 A show for the centrifugal aspirator of similar aspirator 22, by setting parameter under tachometer value based on different, according to the qualitative tendency of the suction negative pressure Δ P (take pascal as unit) of flow (take mc/h as unit).Fig. 4 B shows the qualitative tendency of the power absorbed for described centrifugal aspirator, equally also according to flow (take mc/h as unit) and be the tachometer value based on different by setting parameter.On the other hand, Fig. 4 C shows two kinds of trend of winder unit characteristic of required negative pressure Δ P while alternately opening at high negative pressure suction valve 35 (curve A) or lower negative pressure suction valve 31 (curve B), wherein high negative pressure suction valve 35 for catching and process the yarn end on the bobbin side and on the package side, and lower negative pressure suction valve 31 removes operation for dust.These qualitative tendencies combine with the performance diagram of aspirator 22 according to Fig. 4 A and 4B.Fig. 4 D shows the details enlarged drawing for the trend of the curve A of lower negative pressure value and B.The trend of Fig. 4 D shows the suction flow that device according to the present invention realize by appropriate negative pressure value for dust removal operation becomes possibility, because aspirator 22 is directly connected to the

suction tube

9,10 or 20 that it is used for, thereby avoided pressure drop occurring in puff profile and waste collection network.For example, if in order to find and catch the yarn end in the predetermined yarn of many coilings, be considered to have 6500 pascals' suction negative pressure Δ P for aspirator 22, it expresses with an A ' and corresponding to the flow of 270mc/h and the about rotating speed of 6600rpm on the curve A of Fig. 4 C.In Fig. 4 B, for the flow of 270mc/h and the rotating speed of 6600rpm, can show by the mode of extrapolated value that during the suction with above-mentioned negative pressure its needed power is 1.8KW.

Again for example, if after the winder unit of the predetermined yarn of many coilings recovers the continuity of yarn, think that flow that aspirator 22 need to have a 100mc/h is with for dust removal operation, it illustrates with a B ' and corresponding to 100 pascals' only suction negative pressure Δ P and the about rotating speed of 1000rpm on the curve B of Fig. 4 D.In Fig. 4 B, for such flow and rotating speed, during normal winding, for dust removal operation, required power can show that by the mode of extrapolated value it is less than 0.07KW.On the other hand, if aspirator 22 is required to have the flow of 200mc/h, its on the curve B of Fig. 4 D with a B " illustrate and corresponding 400 pascals' suction negative pressure Δ P and the rotating speed that is approximately 1650rpm.In Fig. 4 B, for such flow and rotating speed, during normal winding, for dust removal operation, required power can show that by the mode of extrapolated value it is approximately 0.25KW.With the available suction system of bobbin-winding machine of the prior art, compare, the suction system in the present invention has appreciiable advantage.According to technical scheme of the present invention, long machine will can not be subject to the adverse effect of being brought by the irregularity of the suction of each winder unit that forms it.For the energy consumption in the operation of the high negative pressure at single winder unit place, be limited to for during independently the high negative pressure of aspirator 22 is got involved.When a plurality of winder units need to operate simultaneously, independently the efficiency of aspirator 22 is fully unaffected: in the time that machine only needs at it, from main line, draw more substantial energy.Single winder unit can be according to its operating parameter, according to the interim requirement of its individual unit or the flexibility of processing the yarn of a plurality of batches on same machines simultaneously, require to change its suction value.

By independent aspirator 22, it also may change suction during catching the yarn end.In recent bobbin-winding machine, be equipped with the sensor for detection of the line in it in

suction tube

9 and 10, described sensor make by make suction tube towards wire terminal machine 6 motion carry out its transport before verification whether correctly caught and become possibility at the line of its both sides.By the side in both sides, do not caught if the sensor of yarn end shows yarn, catch the program of yarn by change, and repeat prize procedure until success in this side with rational number of times.Usually, maximum catch difficulty appear at the package side (particularly when the end of yarn be powerful and when package drops out) and control unit 16 change maintenance programs (withholding procedure) for use in the change of following operation: hand of rotation and just at the coiling again that picks up winding speed and line of the package of unwinding, and for during suction, and in situation of the present invention, also for changing suction intensity.

The yarn end need to carry out special recover circulation and occurring in and for example process in thin or powerful yarn, situation about dropping to side from package online or in the situation that package cut off while restarting.In these cases, after common unsuccessful circulation, thereby program is repeated to allow package to carry out the coiling rotating circulating with normal suction.

Such coiling rotating circulating can make the blowzy coiling caused by catching of failed before yarn end be configured to recover to drop the end of yarn of a side, in any case make the yarn in being parallel to the middle body of bobbin parallel in order to make owing to lacking cross motion.When the coiling rotating circulating finishes, thus the yarn end normally catch the circulation be repeated, again package carried out to unwinding and operated with the negative pressure value that is greater than normal value.Under any circumstance, this value can be set according to the trend in the single winder unit detected in circulation before.

According to a preferred embodiment of the present invention, in package 12, reversed with by defective line unspooling operation (this even can take the plenty of time in the situation that have long defect) from it, once indicate the yarn end to be hunted down for detection of the sensor of line, the high negative pressure suction will no longer need, and can significantly reduce this suction in order to save large energy.In other words, aspirator 22 drives the higher negative pressure value of the yarn end to be provided for catching line 2 under maximum speed of revolution, once, and the yarn end has been hunted down, provide lower negative pressure value in during it drives with the remaining part of online successional rejuvenation under the rotating speed reduced.

According to technical scheme of the present invention (except have advantages of more high efficiency and succinct) also make and save mass energy with respect to concentrated aspirator of the prior art become possibility in suction.

Technical scheme according to the present invention makes acquisition carry out important improvement to winding process becomes possibility.It should be noted that negative pressure value can be carried out following accommodation in the stage of the end of yarn being collected and catching with the high negative pressure suction:

-the type that disconnects according to yarn;

-after common unsuccessful circulation, for carrying out specific yarn, recover circulation;

-according to the type of yarn, by the trend before cutting elimination defect, winder unit;

It should be pointed out that and using during the lower negative pressure suction carries out the stage of continuous dedusting, negative pressure value can be according to the following accommodation of carrying out:

-according to the advanced degree of the unwinding of bobbin;

-according to the speed of reeling and picking up;

-according to the degree of saturation specific humidity of filter (41).

Claims

1. a bobbin-winding machine, comprise a plurality of winder units (23), these winder units are aligned and are used suction system, described suction system provides single winder unit required suction operation, it is characterized in that, each in described winder unit (23) all has independent rotation aspirator (22), described aspirator (22) is driven with variable speed by the control unit (16) of winder unit (23), described aspirator alternately carries out following operation: provide continuous lower negative pressure swabbing action to being positioned at suction tube (20) that bobbin (1) locates with for dust removal operation, it repels discontinuous high negative pressure suction tube (9, 10), perhaps provide discontinuous high negative pressure swabbing action to suction tube (9,10) with for getting involved disconnection and the joint of line (2), and for starting new bobbin (1), it repels continuous lower negative pressure suction tube (20), by the air-lock (31 driven by control unit (16), 35) open and close connecting pipe (30,34) to realize alternately repulsion.

2. bobbin-winding machine according to claim 1, it is characterized in that, rotation aspirator (22) consists of centrifugal impeller (25), described centrifugal impeller is activated by motor (26), and this motor executive command is in order to operated with each rotating speed changed according to the needs of winder unit.

3. bobbin-winding machine according to claim 2, is characterized in that, this motor (26) is the brushless motor with frequency drives by the control unit (16) of winder unit.

4. bobbin-winding machine according to claim 1, it is characterized in that, each of independent aspirator (22) is equipped with the filter (41) for the refuse of line, this filter is held back the refuse of line in the upstream of identical aspirator, and described filter be arranged to the material that will hold back by the air pressure transport cycle be discharged in concentrated filter (53).

5. bobbin-winding machine according to claim 2, is characterized in that, be provided to the centrifugal aspirator (22) on winder unit (23) independently drive thus required lower negative pressure value be provided with slow speed of revolution during winding process.

6. bobbin-winding machine according to claim 2, it is characterized in that, be provided to centrifugal aspirator (22) online (2) on winder unit (23) independently thus successional Recovery processing during provide required high negative pressure value so that high rotating speed is driven.

7. bobbin-winding machine according to claim 6, it is characterized in that, the centrifugal aspirator (22) be provided on winder unit (23) independently drives to be provided for catching the yarn end the highest required negative pressure value of line (2) under maximum speed of revolution, once the yarn end is hunted down, aspirator under the rotating speed reduced, be actuated to online (2) successional Recovery processing remaining part during lower negative pressure value is provided.

8. bobbin-winding machine according to claim 4, is characterized in that, this filter (41) for the refuse of line is equipped with pressure gauge (48).

9. bobbin-winding machine according to claim 4, is characterized in that, this concentrated filter (53) is equipped with for the air inlet valve (59) from atmosphere suction air, and this air inlet valve is arranged in the direct upstream of aspirator (51).

10. the method for winding that use is carried out according to the described bobbin-winding machine of one of claim 1-9, described bobbin-winding machine is equipped with a plurality of single aspirators (22) that are provided to independently on each winder unit (23), it is characterized in that, in the stage of utilizing the high negative pressure swabbing action to be collected and catch the end of yarn, the type that negative pressure value disconnects about yarn is carried out accommodation.

11. the method for winding that use is carried out according to the described bobbin-winding machine of one of claim 1-9, described bobbin-winding machine is equipped with a plurality of single aspirators (22) that are provided to independently on each winder unit (23), it is characterized in that, in the stage of utilizing the high negative pressure swabbing action to be collected and catch the end of yarn, negative pressure value is carried out accommodation after common unsuccessful circulation, in order to carry out specific yarn, recovers circulation.

12. the method for winding that use is carried out according to the described bobbin-winding machine of one of claim 1-9, described bobbin-winding machine is equipped with a plurality of single aspirators (22) that are provided to independently on each winder unit (23), it is characterized in that, in the stage of utilizing the high negative pressure swabbing action to be collected and catch the end of yarn, negative pressure value is carried out accommodation according to the trend before of the type of yarn, the defect of being eliminated by cutting, winder unit.

13. the method for winding that use is carried out according to the described bobbin-winding machine of one of claim 1-9, described bobbin-winding machine is equipped with a plurality of single aspirators (22) that are provided to independently on each winder unit (23), it is characterized in that, during utilizing the lower negative pressure swabbing action to carry out the stage of continuous dedusting, negative pressure value is according to the advanced degree of bobbin unwinding and carry out accommodation according to the speed of reeling.

14. the method for winding that use is carried out according to the described bobbin-winding machine of claim 4 or 8, described bobbin-winding machine is equipped with a plurality of single aspirators (22) that are provided to independently on each winder unit (23), it is characterized in that, during utilizing the lower negative pressure swabbing action to carry out the stage of continuous dedusting, negative pressure value is carried out accommodation according to the degree of saturation specific humidity of the filter (41) of the refuse for line.

A 15. method for winding that uses bobbin-winding machine according to claim 9 to carry out, described bobbin-winding machine is equipped with a plurality of single aspirators (22) that are provided to independently on each winder unit (23), it is characterized in that, be accompanied by the opening of valve (46) of the filter (41) for discharging the described refuse for line, described be used for discharge open stroke for the valve (46) of the refuse of line during the air inlet valve (59) of negative pressure in discharge loop also open.