Be used to operate the method for the winding head of the weaving loom of producing cross winding bobbin
Technical field
The present invention relates to a kind of according to the described method that is used to operate the winding head of the weaving loom of producing cross winding bobbin of first aspect present invention.
Background technology
Supplying with bobbin (cop of for example producing on the ring spinner (spinning cop) than the low capacity yarn that contains) is recoiled to form high-capacity cross winding bobbin on the winding head of the weaving loom of producing cross winding bobbin (cross winding machine especially automatically).During recoil handling, also yarn is monitored to find the yarn fault, with the excision of yarn fault and use the joint identical to change with this yarn essence.During recoiling processing, yarn is upwards extracted and is formed out so-called thread balloon (thread balloon) from cop, and this yarn bears thread tension, and this thread tension has finally limited the silk thread draw speed and therefore limited the winding speed of automatic cross winding machine.The size of said thread tension can reach the diverse order of magnitude, and in other words, if do not take effective countrmeasure, thereby this thread tension will be increased to the danger that the several times of beginning thread tension have increased the silk thread fracture greatly.Because the silk thread fracture not only damages the quality of cross winding bobbin; Also reduced the efficient of relevant automatic cross winding machine; Therefore making great efforts exploitation certain methods and device for a long time always, can improve the backing-off performance of cop during recoiling processing and can improve the silk thread draw speed thus through these method and apparatus.
About the automatic cross winding machine of the type, be known in for a long time to be provided with in the zone of winding head and be convenient to or improve the device of silk thread from the cop extraction.These devices have been described in many patents, during recoil handling these devices be located at usually the cop that is positioned in the winding position above and help silk thread to discharge from cop.In other words, known for many years can also guarantee recoil handle during thread tension maintain the device on the level that can not damage silk thread.
For example in DE 4418312A1, described and also be known as such device that silk thread is extracted accelerator out.This silk thread is extracted accelerator out and is had the guide surface that is used for silk thread, and this guide surface has the shape of frusto-conical surface, and wherein major diameter is towards cop.The structure that such silk thread is extracted accelerator out has realized can not being destroyed or suppressing when the thread balloon that silk thread forms when cop is upwards extracted out, but optimally form.
In addition; For example among disclosed DE 4406076A1, DE 4221559A1 or the DE 102005036704 weaving loom of producing cross winding bobbin is being described also subsequently; These weaving looms all are equipped with special-purpose auxiliary take-off device in their winding head zone, these take-off devices can be handled and followed the trail of to optimize the extraction of silk thread according to unwinding.
For example, the auxiliary take-off device according to DE 4406076A1 is made up of a plurality of tube elements that can be pushed mutually.
Here; The lower element that can drop to the cop top is directed with adjustable for height mode through driver train on center part; Center part is fixed on another upper element through fixing device again, and this upper element is fixedly installed on again on the mounting plate of winding head.The following tube element that its lower edge zone constitutes with the taper mode can recoil handle during actuator through association drop to the mode that limits above the cop, thereby the what is called that makes said awl always be positioned at cop is reeled in the zone of awl.The installation site that when the center part that has narrow location on the input side keeps being in new batch of beginning during whole recoil is handled, is conditioned.The narrow location that is located at center part input side place and is positioned at the tight top, pipe top of cop to be recoiled has caused such situation, promptly a plurality of thread balloons that are conditioned during the coiling processing be divided into down local air ring with on local air ring.
A kind of similarly auxiliary take-off device has also been described in DE 4221559.
This known auxiliary take-off device has first body, and this first body can carry out height adjustment with the mode that limits and can drop to the cop top through driver train, on this first body, supports second body that also can carry out height adjustment.This second body is directed on the sliding bar between two retainers, and the maximal regulated scope of on the silk thread service direction, seeing second body that on outgoing side, has narrow location is through said two retainers restriction.This narrow location has been scheduled to during silk thread is extracted out, form the length of the part of a plurality of thread balloons above that.
But according to after the auxiliary unwinder of disclosed DE 102005036704 have the air ring limited part that is mounted to vertical movement, tubulose thread guide mechanism and adapter with the seal wire eyelet that is located on the input side, the yarn-clipping tube that can bear low pressure can be connected on this adapter.Thread guide mechanism and therefore seal wire eyelet quilt setting regularly.The air ring limited part can vertically be shifted with the mode that limits through actuator; Thereby this air ring limited part can be followed the tracks of the unwinding process of cop during coiling processing, and the lower edge of air ring limited part can always roughly be positioned at the height of the coiling awl of cop.
Through using above-mentioned auxiliary unwinder, the winding speed of these weaving looms can increase a little, but known auxiliary unwinder obviously still can improve, especially recoil handle beginning with during with respect to their location of functional element.
Summary of the invention
Auxiliary take-off device from the above-mentioned type; The present invention is based on the purpose of a kind of method of exploitation; This method allows the known auxiliary unwinder of optimally use itself, in other words, allows the functional component of auxiliary unwinder to be located such that adjusting thread tension when the unwinding cop; This can obviously increase winding speed at the winding head place of the automatic cross winding machine of the type, and the danger that does not have the silk thread crack conditions to increase in this case.
According to the present invention, realize this purpose through the described method of first aspect.
Favourable structure of the present invention is the theme of dependent claims.
Has such advantage according to the method for the invention; Specifically; When each batch beginning or each batch conversion, carry out optimal adjustment immediately with respect to the location of the functional element of assisting unwinder at relevant winding head place; Thereby during whole coiling processing, even regulate so-called " single thread balloon " reliably with very high winding speed.
The functional component of auxiliary for this reason unwinder all is positioned at the starting position that can be scheduled to or the initial position of qualification.In other words, thread guide mechanism is brought into the starting position, and wherein the lower edge of thread guide mechanism has certain axial spacing Δ 1 apart from the lower edge of the pipe of the cop that is positioned at the unwinding position, and this axial spacing depends at least one existing yarn parameter.In addition; The air ring limited part is positioned at the initial position of qualification with respect to the coiling awl of cop; Wherein between the surface of the lower edge of the inside face of air ring limited part and the awl of reeling, be provided with radial spacing Δ 2, this radial spacing Δ 2 also depends at least one existing yarn diameter.
The target positioning of the functional element through such auxiliary unwinder; Guarantee to make that the silk thread that comes out from cop reduces to the pressure that the perfect transmission of assisting take-off device receives; But also guarantee that silk thread can extract out from cop from recoil handling at the very start uninterruptedly, and form single thread balloon.
Of second aspect, in favourable embodiment, thread guide mechanism will be considered various relevant yarn parameters at the location and/or the air ring limited part of starting position in the location of initial position.
Length, winding tension and the winding speed of the fineness that these relevant yarn parameters for example can be yarns, yarn elasticity, cop pipe.
Of the third aspect, in this case, the beginning or the initial position that are used for the optimum of seal wire limited part or air ring limited part are preferably confirmed or verification through so-called guiding ingot.The guiding ingot of this known type own is simple and is proved to be the optimal adjustment data of the functional element that can be provided for to fast and reliable auxiliary take-off device or checks existing adjusting data.
In favourable structure, be provided with like this, that is, from data bank, take out the primary data that is used to regulate the guiding ingot, in data bank, store corresponding expertise (fourth aspect).The expertise that is stored in this case in the data bank for example contains the knowledge relevant for the influence of various separation delta 1 under the situation of having considered various yarn parameters or 2 pairs of cop backing-off performances of Δ.In other words, through being stored in the data in the data bank, the guiding ingot can at first be operated under the situation of the problem that has no basic setting.Then can check and optimize alternatively the adjusting data of selected guiding ingot by means of the test of reeling.In fact, this means when carrying out batch conversion that the conventional coiling processing of new yarn yarn batches is regulated data by the optimization of auxiliary winding mechanism and begun.
Of the 5th, the 6th and the 7th aspect, when the functional element that will assist wind2 was positioned at starting position or initial position, some take off data for a determining deviation should not drop to below the requirement.For example, if the lower edge of thread guide mechanism apart from the axial spacing Δ 1 of lower edge of pipe be selected as make its length that can not drop to the pipe that is positioned the cop in the unwinding position+(the 5th aspect) below the 30mm, prove favourable so.
Yet; The lower edge of inside face that is in the air ring limited part of initial position should have apart from the surface of the coiling awl of cop the radial spacing Δ 2 of 3mm (the 6th aspect) at least; Perhaps of the 7th aspect, this radial spacing should not be lower than 10 times of the yarn diameter that is positioned at the yarn on the cop.
Of the 8th and the 9th aspect, can either manually can automatically thread guide mechanism be positioned at the starting position and the air ring limited part is positioned at initial position again.In other words; The functional element of auxiliary unwinder or the adjusting data manual positioning of being confirmed by the guiding ingot through the operating personal basis, perhaps regulating mechanism (it for example starts according to definite adjusting data through the special-purpose control mechanism of winding head) guarantees automatically that before each new lot begins thread guide mechanism and air ring limited part are positioned at optimum beginning or initial position.
And in order during operating winding, for good and all to keep optimum unwinding situation; In other words; During extracting, form single thread balloon at silk thread, during coiling processing, of the tenth aspect; The air ring limited part arrives the final position along with the position of the position of the coiling awl of cop is continued to follow the tracks of up to the air ring limited part.In other words, the radial spacing Δ 2 on the surface of the inward flange of air ring limited part and incidental looping awl keeps constant basically, up to the said final position that arrives said air ring limited part.
As the tenth on the one hand said, favourable structure of the present invention also is provided, wherein between the lower edge of the upper limb of the pipe of cop and thread guide mechanism, keep certain spacing Δ 3.This separation delta 3 here generates as the function of the signal of thread tension sensor, and this thread tension sensor scan the winding tension at the yarn place that moves during coiling processing.
Pointed like the 12 aspect, if the thread tension of during coiling processing, measuring became low (although the yarn tensioner at utmost cuts out), then increase separation delta 3.In this case, separation delta 3 can increase up to thread guide mechanism apart from the maximum 10 times (ten three aspect) of the axial spacing Δ of the lower edge of the pipe of cop 1 for the length of pipe.
Correspondingly, of the 14 aspect, if the thread tension of during coiling processing, measuring becomes too high (although the yarn tensioner is at utmost opened), then reduce separation delta 3.
According to the 15 aspect, separation delta 3 can be reduced to 2mm at most or be positioned at 4 times of yarn diameter of the yarn on the cop.
Of the 16 aspect, in a favourable embodiment, also be provided with like this: during coiling processing, preferably continue tracking spacing Δ 2 and/or Δ 3 by corresponding curve, this curve for example is stored in the memory device of the special-purpose control setup of up-coiler.
Description of drawings
Below by the embodiment shown in the accompanying drawing other details of the present invention is described, in the accompanying drawings:
Fig. 1 shows the lateral plan of winding head of the weaving loom of the production cross winding bobbin with auxiliary take-off device, and this auxiliary take-off device is operated according to the method for the invention;
Fig. 2 shows the block diagram of the auxiliary take-off device that can operate according to the present invention and in Fig. 1, schematically illustrate;
Fig. 3 shows the details III according to Fig. 1;
Fig. 4 amplifies the extraction that shows according to auxiliary take-off device of the present invention and supplies with (read feed) zone.
The specific embodiment
Fig. 1 shows in this embodiment the diagrammatic side view for the weaving loom of the production cross winding bobbin of so-called automatic cross winding machine 1.Such automatic cross winding machine 1 has a plurality of similar workstations or winding head 2 between their end frame (not shown); The cop that only has the relatively small amount thread material 9 that on this workstation or winding head 2 (with known the same, thereby therefore not describing in more detail), will on the ring spinner (not shown), produce is recoiled to form high-capacity cross winding bobbin 11.Then this cross winding bobbin 11 for example is transferred to cross winding bobbin conveying mechanism 21 and is transported to bobbin loading depot (not shown) that is located at the machine end etc. along machine through the cross winding bobbin changer.
As shown in Figure 1, this automatic cross winding machine 1 also has the logistical organization that is bobbin and pipe delivery system 3 forms, and wherein cop 9 or blank pipe 34 vertically are fixed on delivery board 8 cocycles.
In this bobbin and pipe delivery system 3, one of them in the storage part 5 that in Fig. 1, bobbin supply unit 4 only is shown, can back and forth drive, the lateral transfer portion 6 of guiding winding head 2 into and pipe recoverer 7.As shown, in this case, the cop 9 that is supplied is positioned in unwinding position 10 and recoils, and this unwinding location positioning is in the zone of the lateral transfer portion 6 at winding head 2 places.
For this reason; Having various silk threads with the known the same single winding head of therefore only pointing out 2 handles and steering unit; They guarantee that not only cop 9 can be recoiled to form high-capacity cross winding bobbin 11; But also guarantee that silk thread is monitored with detection silk thread fault during recoiling processing, and remove detected silk thread fault.
Winding head 2 for example all has wind2 24, bobbin driver train 26 and silk thread transversing mechanism 28, and wind2 24 has that be mounted to can be through the bobbin bank 18 of pivot 19 motion.In embodiment shown in Figure 1, its surface is positioned on the drive drum 26 cross winding bobbin 11 for example being positioned to during the coiling processing, thereby is driven through frictional engagement, and this drive drum 26 can be through the single motor effect.When silk thread runs to 11 last times of cross winding bobbin, carry out silk thread through silk thread transversing mechanism 28 and traverse, this silk thread transversing mechanism has finger-like seal wire spare 29 in this embodiment.
This silk thread transversing mechanism is known and for example in DE 19858548A1, describes to some extent.
This winding head 2 also have silk thread bindiny mechanism 13 (preferably pneumatically-operated engaging gear), can be through the suction tube 12 of low pressure effect and yarn-clipping tube 25 that also can be through the low pressure effect.In this case, suction tube 12 is connected on the low pressure crossbeam 32 of machine-specific with yarn-clipping tube 25, and this crossbeam is connected to low pressure source 33 again.
This workstation 2 generally also has bottom thread sensors 22, silk thread tensioner 14, has yarn clearer 15, thread tension sensor 20 and waxing mechnism 16 and the so-called winding head computing machine 60 of secant mechanism 17, and this winding head computing machine 60 activates each functional element.
In addition; Workstation 2 is equipped with auxiliary take-off device 23; It is used for arriving the yarn-clipping tube 25 through the low pressure effect with being placed on cop 9 places so-called bottom silk thread pneumatic transfer for use, and also guarantees receiving favourable influence at the thread balloon that when the silk thread of cop 9 withdraws from, produces during the coiling processing aspect the reduction thread tension.
This is assisted take-off device 23 (also shown in Fig. 2 neutral body figure) but roughly comprises the air ring limited part 27 and tubulose thread guide mechanism 38 that is mounted to vertical movement.In other words, air ring limited part 27 can be conditioned with the mode that limits along vertical direction R through actuator 30, thereby air ring limited part 27 can move downward along with the unwinding process of cop 9 during coiling processing.In this case, be arranged on the height place of the coiling awl 52 of the cop 9 that is positioned unwinding position 10 the preferred constant of lower edge of air ring limited part 27.
As depicted in figs. 1 and 2, thread guide mechanism 38 is preferably multipart.
Thread guide mechanism 38 for example has going up pipe 36 and can be provided with and following pipe 37 that its control position can for example be regulated through actuator 39 with respect to managing 36 this on with being shifted on the adapter 40 that is fixed to static setting.The lower edge 50 of the following pipe 37 of thread guide mechanism 38 is located at the pipe top of the pipe 41 of the cop 9 that is positioned unwinding position 10 consistently.
Below by Fig. 3 and Fig. 4 the location of the thread guide mechanism 38 that limits according to the present invention is described, specifically be the qualification location of the location of its following pipe 37 that is in starting position I and the air ring limited part 27 that is in initial position II.
As shown in Figure 3, among the starting position I between the lower edge 45 of pipe 41 of cop 9 of unwinding position 10 the certain axial spacing by Δ 1 expression is set managing 37 lower edge 50 down and be positioned.The pipe 41 of cop 9 has length L in this case.
In Fig. 3, manage the spacing between the minimum coiling place of 37 lower edge 50 and cooresponding cop 9 down by Δ 4 expression.
As shown in Figure 4, be positioned at the radial spacing between the surface of coiling awl 52 of lower edge and cop 9 of inside face 46 of air ring limited part 27 of its initial position II by Δ 2 expression.
Spacing between the lower edge 50 of the upper limb 47 of separation delta 3 expression pipes 41 and the following pipe 37 of thread guide mechanism 38, this thread guide mechanism 38 is preferable configuration funneling shape in the silk thread supply area.In addition, the separation delta shown in Fig. 45 is illustrated in the corresponding spacing that silk thread point of release and seal wire in the surf zone of coiling awl 52 of cop 9 managed 37 lower edge 50 down.Separation delta 5 constant variation during coiling processing, but during coiling processing, be tending towards becoming big.
Function according to the method for the invention:
Before beginning to recoil new yarn yarn batches; The starting position I of thread guide mechanism 38 preferably passes through guiding ingot initial fixation on relevant up-coiler with the initial position II of air ring limited part 27; And consider various relevant yarn parameters, for example fineness of yarn, yarn elasticity, cop length of tube, largest tube yarn diameter, winding tension and winding speed.
Consider that in this case the existing yarn parameter of cop 9 confirms the starting position I of certain spacing Δ 1 as thread guide mechanism 38.As stated, in this case separation delta 1 represented thread guide mechanism 38 following pipe 37 lower edge 50 and be positioned the spacing between the lower edge 45 of pipe 41 of cop 9 of unwinding position 10.In addition, also consider the existing yarn parameter of cop 9, confirmed the initial position II of air ring limited part 27.At this initial position II, the lower edge of the inside face 46 of air ring limited part 27 is a Δ 2 apart from the radial spacing on the surface of the coiling awl 52 of cop 9.Automatically generate the separation delta 3 between the lower edge 50 of pipe top and thread guide mechanism 38 according to the length of the pipe 41 of cop 9 here, and according to the length and position generation separation delta 4 of the cop on the pipe that is wound up into cop 9 41.The separation delta that generates during the coiling processing 5 for the lower edge 50 of thread guide mechanism 38 and silk thread 51 from the spacing between the exit point on the surface of the coiling awl 52 of cop 9.
During recoiling processing (wherein silk thread 51 is upwards extracted out from cop 9), air ring limited part 27 is along with the unwinding processing is followed the tracks of, thereby silk thread 51 is with the constant rotation of form of single thread balloon before silk thread 51 contacts with thread guide mechanism 38.In other words, the separation delta between the surface of the coiling of the lower edge of the inside face 46 of air ring limited part 27 and cop 9 awl 52 2 keeps constant.
In this case, through the thread tension of thread tension sensor 20 monitoring silk thread 51 to be recoiled, and regulate to interfere through the correspondence of silk thread tensioner 14 alternatively and proofread and correct.If for example the thread tension sensor confirms that no longer can carry out thread tension through silk thread tensioner 14 proofreaies and correct during recoiling processing, then the control mechanism 60 of winding head 2 works through the actuator 39 that activates thread guide mechanism 38 accordingly.In other words, if the thread tension of during coiling processing, measuring low excessively (although silk thread tensioner 14 at utmost cuts out), then thread guide mechanism 38 is risen slightly, thereby increases separation delta 3.
The axial spacing Δ 1 that separation delta 3 can be increased to the lower edge 50 that makes thread guide mechanism 38 at most approximately is 10 times of length L that are positioned the pipe 41 of the cop 9 in the winding position 10.
Therefore, if thread tension sensor 20 is confirmed the thread tension that records too high (although yarn tensioner 14 is at utmost opened) during coiling processing, then reduce separation delta 3 through control mechanism 60.In this case, separation delta 3 is reduced to 4 times of yarn diameter of the thread material of 3mm or cop 9 at most.