CN101837909A

CN101837909A - The method and apparatus of the station of the weaving loom of operation manufacturing cross winding bobbin and the station of carrying out this method

Info

Publication number: CN101837909A
Application number: CN201010120429A
Authority: CN
Inventors: 赫尔穆特·科伦
Original assignee: Oerlikon Textile GmbH and Co KG
Current assignee: Saurer Spinning Solutions GmbH and Co KG
Priority date: 2009-02-21
Filing date: 2010-02-21
Publication date: 2010-09-22
Anticipated expiration: 2030-02-21
Also published as: DE102009009971A1; DE102009009971B4; CN101837909B

Abstract

The present invention relates to a kind of method of the station of operating the weaving loom of making cross winding bobbin and the station of carrying out described method.Described station is equipped with bobbin bank, separate motors actuating device, yarn clearer and winder station computing machine, wherein bobbin bank is used for keeping rotationally cross winding bobbin, the separate motors actuating device is used to rotate cross winding bobbin or traverses run to yarn on the cross winding bobbin, yarn clearer is used to detect the yarn defect, and the winder station computing machine is used for controlling in a predefined manner the separate motors actuating device of station.According to the present invention, when reeling interruption, with the situation of the position co-ordination of the free loose thread of described cross winding bobbin bonded assembly yarn under actuating device of control Yarn lateral-movement device like this, that is, the thread-carrier of described Yarn lateral-movement device makes free loose thread towards the displacement of the direction of one of them bobbin end face of described cross winding bobbin and be positioned at the outside of one of them bobbin end face of described cross winding bobbin with predetermined length.

Description

The method and apparatus of the station of the weaving loom of operation manufacturing cross winding bobbin and the station of carrying out this method

Technical field

The present invention relates to a kind of method of station of the weaving loom of making cross winding bobbin according to claim 1 operation as described in the preamble and a kind of station of this method of execution as described in the preamble according to Claim 8.

Background technology

As known, in order to make cross winding bobbin, not only relevant weaving bobbin must rotate around its bobbin shaft, and the yarn that runs on this weaving bobbin also must traverse with higher relatively speed along bobbin shaft.Bobbin body in this formation not only will have metastable structure but also good unwinding characteristic will be arranged.

Because the modern textile machine of the manufacturing cross winding bobbin that for example automatic cross winding machine is such is with the higher winding speed work until 2000m/min, the speed of traversing of thread laying system also must be corresponding higher.The various thread laying system that is associated with this automatic cross winding machine is disclosed, and utilizes these thread laying systems can realize the required higher speed of traversing.

For example so-called thread guide drum is described in detail, and it makes the yarn of operation traverse on the one hand and makes cross winding bobbin rotate by frictional fit simultaneously.

Yet the shortcoming of this thread guide drum that self stands severe tests is, only can make the cross winding bobbin of winding method for " reeling at random " by this thread guide drum.That is to say, only can make such cross winding bobbin, promptly, in this cross winding bobbin with the irrespectively given all the time identical lay angle of bobbin diameter, the result is, determine under the situation in the rotating speed ratio between cross winding bobbin and the thread guide drum, if do not take special measure as above said coiling line style will occur, this coiling line style after the unwinding of weaving bobbin the time can bring very big problem.

In addition, in order to generate the coiling line style (for example accurately reeling or accurate stepping coiling) that to be scheduled to, just be known that for a long time and utilize actuation techniques to separate the rotation of cross winding bobbin and traversing of moving yarn.In these known devices, remain on cross winding bobbin in the bobbin bank rotationally for example with friction fit applying special driving roller, this driven roller can drive by the individual drive device.The corollary apparatus that is used to moving yarn is traversed is equipped with the independent preferred actuating device that can control in a predefined manner equally.

For example as described in German patent DE 198 58 548 A1, this thread laying device for example has the finger-type thread-carrier, and this finger-type thread-carrier drives by electro-motor individual drive device.In this known thread laying device,, regulate the size and Orientation of the drive torque of thread-carrier actuating device in a predefined manner at each motion stage by control or adjusting supply of current.

This preferably passes through for example such control computer realization of winder station computing machine, but according to preset program ground relevant with angle and time control current intensity and direction of current.The lay angle of the corresponding expectation of yarn not only can be regulated by this way in a predefined manner, the traverse width or the concluding time point that traverses can also be regulated in a predefined manner.In addition, by corresponding sensor, the optimized angle sensor detects the respective corners position that guide refers to, checks following and making actual value be matched with expected value by adjusting when needed of expected value.

This thread laying device of finger-type thread-carrier that is equipped with is proved to be extremely flexibly in practice, yet be with the same its shortcoming of thread guide drum, when carrying out controlled yarn clearer cutting, there is such danger all the time, promptly, with yarn on the cross winding bobbin bonded assembly be not normally to run on the cross winding bobbin, but fall yarn (Fallfaden) and fall away from one of them end face next door of this cross winding bobbin and no longer can be picked up afterwards by the yarn suction nozzle of station as so-called.

Thereby, developed multiple device in the past, utilize these devices for example so to avoid this yarn that falls, that is, only when traversing, the direction at bobbin center postpones to carry out yarn clearer cutting by thread guide drum when yarn at a time point.This known devices for example has detailed relatively description in German patent DE 4025696A1 or European patent EP 0 631 962 B1.

In addition, disclose a kind of station of making the weaving loom of cross winding bobbin, wherein, the feed carrier that can control in a predefined manner has been set in the thread guide drum zone by European patent EP 814 045 A2.This known feed carrier have two can pivot install and can pneumatically-operated guide arm, these two guide arms for example pivot towards the direction at bobbin center under the yarn tension weakened condition, and will guide to the bobbin center with yarn on the cross winding bobbin bonded assembly at this.

And then, a kind of method of operation position of the weaving loom of making cross winding bobbin has been described in German patent DE 10 2,004 052 564 A1, wherein, so control the actuating device of the Yarn lateral-movement device that is equipped with the finger-type thread-carrier by the winder station computing machine, promptly, under the situation of reel interrupting, thread-carrier is displaced to a position at once, this position guarantee with this cross winding bobbin bonded assembly on yarn run between two parties on the upper surface of this cross winding bobbin all the time.Especially utilize the method for in German patent DE 10 2,004 052 564 A1, describing to avoid reliably, yarn appears falling when the controlled yarn clearer that carries out subsequently cuts, be apparent that, run to this center on Page at last yarn under the situation on the upper surface of cross winding bobbin, especially when last yarn is the less relatively yarn of yarn diameter, can exist yarn to enter danger the upper surface of cross winding bobbin from bobbin driven roller " backfin ".This subsequently " backfin " upward yarn often is difficult to or no longer can caught and pick up by the suction nozzle of this station self, and in order to pick up yarn, this suction nozzle pivots and enters the cross winding bobbin surface area that rotates backward subsequently and be applied in negative pressure.

Summary of the invention

From aforementioned prior art, task of the present invention is to develop a kind of method or station, in this method or station, can guarantee that also weaving loom moves reliably when the processing spun yarn.

According to the present invention, this task solves by method according to claim 1, and perhaps the station by this method of execution described in claim 8 solves.

The favourable embodiment of the method according to this invention has been described in dependent claims 2 to 7.The preferable configuration mode of station is the theme of

claim

9 and 10.

The method according to this invention regulation, with the situation of the position co-ordination of the free loose thread that runs to the yarn on the cross winding bobbin under actuating device of control Yarn lateral-movement device like this, promptly, the thread-carrier of Yarn lateral-movement device makes this free loose thread towards the displacement of the direction of one of them bobbin end face of this cross winding bobbin and be positioned at predetermined length outside one of them bobbin end face of this cross winding bobbin, the advantage of this method is, has avoided yarn " backfin " to enter the upper surface of cross winding bobbin by the lateral displacement of yarn when last yarn runs on the cross winding bobbin.In addition, lateral displacement by last yarn can also make to have the loose thread that can be scheduled to and limit length all the time with can the free outside that so is placed in one of them bobbin end face of cross winding bobbin near mode, that is, can pick up this loose thread to suction nozzle no problem.

As described in claim 2, starting by described yarn clearer under the situation of yarn clearer cutting, clipping time, the actuating device of point and described Yarn lateral-movement device was so coordinated each other, that is, the length that protrudes in the described loose thread of one of them bobbin end face of described cross winding bobbin is no more than 8cm.In having the free loose thread of such length, draw optimal cases.That is to say that free loose thread is so short on the one hand, can not reel that long again on the other hand being enough to picked up reliably by the suction nozzle of station self around the sleeve receptacle of bobbin bank.

As describing in claim 3 to 5, regulation also in a favourable embodiment, when carrying out the yarn clearer cutting, described thread-carrier is shifted towards the direction of the nearer bobbin end face of described cross winding bobbin relevantly with its instantaneous position.In addition, at described thread-carrier during this bobbin end face displacement of cross winding bobbin, the speed of traversing of thread-carrier is preferably the winding speed that is matched with described cross winding bobbin and regulates and so selection, that is, the loose thread of equal length just in a predefined manner is placed in the outside of one of them described bobbin end face of described cross winding bobbin all the time.In addition, when described thread-carrier location, especially when during one of them bobbin end face displacement of cross winding bobbin, selecting to traverse speed, consider the trigger delay of described yarn clearer.

As described in

claim

6 and 7, the perhaps idle running by yarn under working sensor spinning cop bobbin, the perhaps disappearance signal of the yarn clearer cop bobbin idle running that is interpreted as spinning.

In both cases, with the free loose thread of the described yarn of described cross winding bobbin bonded assembly preferably by the situation of the position co-ordination of yarn under working sensor under actuating device of the described Yarn lateral-movement device of control like this, promptly, in this case, the length of described loose thread that protrudes in described one of them bobbin end face of described cross winding bobbin also is no more than 8cm.

Utilize aforementioned method steps with plain mode and realization at any time with reappearing, not only after controlled yarn clearer cutting but also after feeding bobbin idle running, loose thread all is present on the position favourable with regard to the suction nozzle of station self, that is to say that suction nozzle finds same favourable situation all the time when yarn picks up.

As described in claim 8, each of a plurality of stations that is used to make the weaving loom of cross winding bobbin in order to carry out the inventive method all is equipped with bobbin bank, the separate motors actuating device, yarn clearer and winder station computing machine, described bobbin bank is used for keeping rotationally cross winding bobbin, described separate motors actuating device is used to rotate described cross winding bobbin and is used to make the yarn that runs on the described cross winding bobbin to traverse, described yarn clearer is used to detect the yarn defect, and described winder station computing machine is used for controlling in a predefined manner the separate motors actuating device of described station.At this, described winder station computing machine is connected on the actuating device of bobbin driven roller and is connected on the actuating device of Yarn lateral-movement device via another control path and structure like this via control path, promptly, the described thread-carrier of described Yarn lateral-movement device is so located in the zone of one of them described bobbin end face of described cross winding bobbin when yarn clearer cuts, that is, make with described cross winding bobbin bonded assembly on the free loose thread of yarn be positioned at the outside of one of them described bobbin end face of described cross winding bobbin.

As described in claim 9, described Yarn lateral-movement device preferably has finger-type thread-carrier and the angular transducer with electronic motor drive, and described angular transducer is used to detect the corresponding instantaneous position of described thread-carrier.At this, the electrical motor driven device of finger-type thread-carrier and angular transducer are connected on the winder station computing machine via control or signal line.

In addition, the yarn under working sensor is set in the zone of yarn operating path, described yarn under working sensor is connected on the described winder station computing machine (claim 10) equally via signal line.

Because aforementioned components is necessary for the normal operation of the Yarn lateral-movement device of station and is the member that all exists originally therefore, reduces to minimum so be used to carry out the necessary additional expense of the inventive method.That is to say, be used to carry out the little revision that the necessary expense of the inventive method is confined to the software aspect of winder station computing machine basically.

Description of drawings

Describe the present invention in detail below in conjunction with an embodiment shown in the accompanying drawing.

Among the figure:

Fig. 1 illustrates the station of the weaving loom of making intersected coiled bobbin with lateral plan, the finger-type thread-carrier that it has the bobbin driven roller that separate motors drives and drives the separate motors of separating;

Fig. 2 is illustrated schematically in these stations under the normal winding service condition according to Fig. 1 with front elevation, and it has and is used to carry out the required device of the inventive method;

Fig. 3 is illustrated in the station shown in Fig. 2 after the cutting of controlled yarn clearer, and it has suction nozzle, pick up be positioned near the next door, right side on during the yarn loose thread, this suction nozzle is positioned in the surface area of cross winding bobbin.

The specific embodiment

Fig. 1 schematically shows the station 2 of the weaving loom 1 of making intersected coiled bobbin with lateral plan, and this weaving loom is so-called automatic cross winding machine in this current example.

As known, this automatic cross winding machine 1 station 2 that between its (unshowned) terminal frame, all has a plurality of same configuration.As same known and therefore unspecified, spinning cop bobbin 3 after-combustion that to make on ring spinner on these winder stations 2 become the cross winding bobbin 5 of large volume, cross winding bobbin 5 after it is done, by means of service unit (not shown) for example cross winding bobbin more change planes and be transferred to along on the cross winding bobbin transmitting device 7 of machine longitudinal length setting and be transported to the bobbin point of shipment that is arranged on the machine end side or similarity etc.

In addition, this automatic cross winding machine 1 also has the feeding mechanism that is bobbin and sleeve delivery system 6 forms usually.

In this bobbin and sleeve delivery system 6, spinning cop bobbin 3 or empty sleeve go in ring on transfer dish 11.The cop drainage area 24 of bobbin and sleeve delivery system 6, storage area 25 that can reverse driving, the lateral transfer district 26 and the sleeve recirculation zone 27 of guiding winder station 2 only are shown in Fig. 1.

As is known and thereby only illustrate like that, each winder station 2 all also has various devices, these devices guarantee the normal operation of this station.One of these devices for example are the wind2s with Reference numeral 4 signs, and this wind2 has can be around the bobbin bank 8 of pivotal axis 12 motion installations.In this example, cross winding bobbin 5 with its upper surface 31 applying bobbin driven rollers 9, and is driven by bobbin driven roller 9 by friction fit in winding process.

And in an alternative embodiment, the actuating device of the controllable rotation speed that the driving of cross winding bobbin also can be by being preferably the commutative DC motor of electronics realizes that this actuating device is set directly on the bobbin bank 8 or one is bonded to bobbin bank 8.

The traversing of yarn 16 that runs in winding process on the intersected coiled bobbin realized by thread laying device 10.

This thread laying device 10 that only schematically show in Fig. 1 and that for example describe in German patent DE 10 2,004 052564 A1 has finger-type thread-carrier 13, as shown in Figure 2, the finger-type thread-carrier 13 that drives by electrical motor driven device 14 yarn 16 that between two end face 32A of

cross winding bobbin

5 and 32B, traverses.

Especially as Fig. 2 and Fig. 3 further shown in, actuating device 14 has motor drive shaft 33, is constructed to be thread-carrier 13 anti-being arranged on rotationally on the motor drive shaft 33 of finger-type.Setting angle sensor 17 (preferably with removable cover cap protection) on one side of putting the relative with thread-carrier 13 of actuating device 14, being configured among German patent DE 103 54 587 A1 of angular transducer 17 described in detail.Actuating device 14 is connected with winder station computing machine 28 with

control path

15 or 18 via signal with angular transducer 17.

In addition, winder station 2 all has yarn under working sensor 40 (being connected with winder station computing machine 28 via signal line 41), yarn clearer 22 (being connected with winder station computing machine 28 via control path 29), is arranged on yarn cutting device 23 (can be controlled via circuit 30 by winder station computing machine 28) and yarn tension sensor 20 (being connected with winder station computing machine 28 via signal line 21) in yarn clearer 22 zones.As common, each station 2 all has suction nozzle 35, so-called clamp yarn cop 37 and compressed-air controlled Yarn connecting device 36 in addition.

Be cut into the function that example illustrates the inventive method with controlled yarn clearer:

For example shown in Figure 2, at the normal winding on period, by the unwinding cheese unwinding yarn 16 that is arranged on the transfer dish 11, and be wound on the cross winding bobbin 5 of large volume this unwinding cheese be constructed to spin cop bobbin 3 and being positioned on the unwinding position in 26 zones, lateral transfer district at yarn on the intersection location 16.For realizing this purpose, cross winding bobbin 5 remains between the supporting arm of bobbin bank 8 rotationally, and with its upper surface 31 applying bobbin driven rollers 9.Bobbin driven roller 9 can be by driving and frictional fit ground drive cross winding bobbin 5 via control path 19 and winder station computing machine 28 bonded assembly electrical motor driven devices 34.In addition, the yarn 16 that runs on the intersected coiled bobbin 5 traverses by Yarn lateral-movement device 10, and Yarn lateral-movement device 10 has finger-type thread-carrier 13, and finger-type thread-carrier 13 can drive by electro-motor individual drive device 14 self.

As shown in these accompanying drawings, yarn 16 also passes across yarn under working sensor 40, yarn clearer 22 and yarn cutting device 23 usually on it leads to the path of cross winding bobbin 5, the yarn defect of yarn clearer 22 monitoring moving yarns.

As is known and for example as described in German patent DE 214 35 69 A, this yarn clearer 22 has detecting head usually, and this detecting head scanning moving yarn 16 is so that find irregularity (for example: thick and heavy point or thin spot).

At this, when the yarn defect is assessed, except yarn diameter, also consider the length of thick and heavy point or thin spot.If identified irregularity, and because it has surpassed predetermined permission threshold value and its delimitation is the yarn defect, yarn clearer 22 will trigger so-called yarn clearer cutting so.That is to say that according to the corresponding signal of yarn clearer 22, winder station computing machine 28 starts yarn cutting device 23, yarn cutting device 23 is responsible for yarn 16 defective is cut at yarn defect rear along the yarn service direction.In addition, here winder station computing machine 28 with the situation of the position co-ordination of the free loose thread 50 of cross winding bobbin 5 bonded assembly yarns 16 under so control the actuating device 14 of finger-type thread-carrier 13 via control path, that is, finger-type thread-carrier 13 makes the last yarn on the upper surface 31 that runs to cross winding bobbin 5 be shifted towards bobbin end face 32A or 32B.At this, so select the speed of traversing of finger-type thread-carrier 13, that is, but free loose thread 50 is placed in the outside of one of them

bobbin end face

32A, 32B and has predetermined confined length.

Subsequently, the ready in this way free loose thread 50 that runs to the last yarn on cross winding bobbin 5 upper surfaces 31 can pick up reliably by the suction nozzle 35 that can pivot on cross winding bobbin 5 upper surfaces 31, wherein, in order to pick up free loose thread 50, cross winding bobbin 5 is rotated lentamente along unreeling direction usually.

Guarantee not only that by the inventive method suction nozzle 35 can pick up loose thread 50 all the time reliably, and avoided when carrying out the cutting of controlled yarn clearer, yarn may occurring falling and/or avoided the free end 50 of yarn to be entered the upper surface 31 of cross winding bobbin 5 by " backfin ".

On the contrary, loose thread 50 so is present in the zone outside one of them

bobbin end face

32A, 32B of cross winding bobbin 5 all the time freely, that is, the suction nozzle 35 by winder station 2 can obtain and pick up this free loose thread 50 easily.

That is to say, suction nozzle 35 picks up yarn all the time no problem and should go up yarn and transfers to Yarn connecting device 36, the free loose thread 50 of going up yarn there is connected with the free loose thread of yarn under working, and the clamp yarn cop 37 of winder station self brings yarn under working from spinning cop bobbin 3.

To go up or the splicing of the loose thread of yarn under working continues normal winding process after in Yarn connecting device 36.

Claims

1. method of operating the station (2) of the weaving loom (1) of making cross winding bobbin, wherein, described station (2) is equipped with bobbin bank (8), separate motors actuating device (34,14), yarn clearer (22) and winder station computing machine (28), described bobbin bank is used for keeping rotationally cross winding bobbin (5), described separate motors actuating device is used to rotate described cross winding bobbin (5) or is used to make the yarn (16) that runs on the described cross winding bobbin (5) to traverse, described yarn clearer is used to detect the yarn defect, described winder station computing machine is used for controlling in a predefined manner the described separate motors actuating device (34 of described station (2), 14)

Described method is characterised in that,

When reeling interruption, with the situation of the position co-ordination of the free loose thread (50) of the described yarn of described cross winding bobbin (5) bonded assembly (16) under described actuating device (14) of control Yarn lateral-movement device (10) like this, that is, the described thread-carrier (13) of described Yarn lateral-movement device (10) makes described free loose thread (50) towards the displacement of the direction of one of them bobbin end face (32A, 32B) of described cross winding bobbin (5) and be positioned at predetermined length outside described one of them bobbin end face (32A, 32B) of described cross winding bobbin (5).

2. method according to claim 1 is characterized in that,

Starting by described yarn clearer (22) under the situation of yarn clearer cutting, clipping time, the described actuating device (14) of point and described Yarn lateral-movement device (10) was so coordinated each other, that is, the length of described loose thread (50) that protrudes in described one of them bobbin end face (32A, 32B) of described cross winding bobbin (5) is no more than 8cm.

3. method according to claim 2 is characterized in that, when carrying out the yarn clearer cutting, described thread-carrier (13) depends on the direction displacement of its instantaneous position ground towards the nearer bobbin end face (32A, 32B) of described cross winding bobbin (5).

4. method according to claim 2, it is characterized in that, described thread-carrier (13) is regulated for the winding speed that is matched with described cross winding bobbin (5) and so selection in its speed of traversing during described bobbin end face (32A, the 32B) displacement in right side or left side, that is, the described free loose thread (50) of predetermined length is arranged in described bobbin end face (32A or the 32B) next door of described cross winding bobbin (5) all the time.

5. method according to claim 4, it is characterized in that, when described thread-carrier (13) is located, especially when described thread-carrier (13) is selected to traverse speed, consider the trigger delay of described yarn clearer (22) during described bobbin end face (32A, the 32B) displacement in right side or left side.

6. method according to claim 1, it is characterized in that, detect the idle running of spinning cop bobbin (3) by yarn under working sensor (40), and with the situation of the position co-ordination of the described free loose thread (50) of the described yarn of described cross winding bobbin (5) bonded assembly (16) under described actuating device (14) of the described Yarn lateral-movement device of control (10) like this, that is, the length of described loose thread (50) that protrudes in described one of them bobbin end face (32A, 32B) of described cross winding bobbin (5) is no more than 8cm.

7. method according to claim 1, it is characterized in that, detect the described idle running of spinning cop bobbin (3) by described yarn clearer (22), wherein, based on the signal that lacks in this case, with the situation of the position co-ordination of the described free loose thread (50) of the described yarn of described cross winding bobbin (5) bonded assembly (16) under described actuating device (14) of the described Yarn lateral-movement device of control (10) like this, that is, the length of described loose thread (50) that protrudes in described one of them bobbin end face (32A, 32B) of described cross winding bobbin (5) is no more than 8cm.

8. an execution is according to the station (2) of the weaving loom that is used to make cross winding bobbin (1) of the described method of claim 1, described station (2) has bobbin bank (8), separate motors actuating device (34,14), yarn clearer (22) and winder station computing machine (28), described bobbin bank is used for keeping rotationally cross winding bobbin (5), described separate motors actuating device is used to rotate described cross winding bobbin (5) or is used to make the yarn (16) that runs on the described cross winding bobbin (5) to traverse, described yarn clearer is used to detect the yarn defect, described winder station computing machine is used for controlling in a predefined manner the described separate motors actuating device (34 of described station (2), 14), described station (2) is characterised in that

Described winder station computing machine (28) is gone up and is connected to via control path (15) on the actuating device (14) of Yarn lateral-movement device (10) via the actuating device (34) that control path (19) is connected to bobbin driven roller (9), and described winder station computing machine (28) is structure so, promptly, described winder station computing machine makes the described thread-carrier (13) of described Yarn lateral-movement device (10) at one of them described bobbin end face (32A of described cross winding bobbin (5) when yarn clearer cuts, so locate in zone 32B), that is, make one of them the described bobbin end face (32A that is positioned at described cross winding bobbin (5) with the described free loose thread (50) of the described yarn of described cross winding bobbin (5) bonded assembly (16), 32B).

9. station according to claim 8, it is characterized in that, described Yarn lateral-movement device (10) has thread-carrier (13) and the angular transducer (17) that is constructed to the finger-type thread-carrier, described thread-carrier (13) can drive by electrical motor driven device (14), and described angular transducer is used to detect the corresponding instantaneous position of described thread-carrier (13).

10. station according to claim 8 is characterized in that, is provided with yarn under working sensor (40) in the zone of yarn operating path, and described yarn under working sensor (40) is connected on the described winder station computing machine (28) via signal line (41).