DE2226077A1 - Method and device for monitoring the exchange of bobbins for tubes on spindles on ring spinning and ring twisting machines - Google Patents

Description

PATENT LAWYERS

DR. MOLLER-BORS ■ DR. MANITZ · DR. DEUFEL
DIPL-ING. FIrIoTERWALD ■ D!? L .-! NG. GRAMKOW

8 MOWCHEN 22, RCBHRT-KQCH-STa 1 fl 4 O? S

TELEPHONE 225110

2 May 9, 1972

MSGHINEHI ¹ ABEIK EIETEE AG Oh 8406 Winterthur / Switzerland

Method and apparatus for monitoring a replacement from bobbins to sleeves on spindles on single spinning and twisting machines

The invention "relates to a method for monitoring a Replacing bobbins for sleeves on spindles on single-spinning and single-twisting machines, in which they are on the same line cops located by spindles are automatically withdrawn from the spindles and the row of spindles is scanned by a light beam outside of the spindles and within an area corresponding to an outer diameter of the cops the spindle row extends along from a light source to a light receiver, as well as a device for Implementation of the procedure.

20 9853/0627

In a known method of the type mentioned above the cops are removed by means of a pulling device that can be moved along the row of spindles, a so-called wagon case, deducted. The pulling device has a pivotable n-shaped bracket, seen from the same, on one of which Leg a light source is arranged such that a light beam or light beam between the legs can be directed to a light receiver arranged on the other leg, which is connected to the drive for the pull-off device is coupled. Before peeling off, the stirrup with its web is placed between the cops and the machine in a Brought that the same with the legs includes a limited number of cops to be drawn off the spindle row. The light source and the light receiver are then in a position that a connecting line laid through the center of the light source and the light receiver is outside of the spindles runs through the zones corresponding to the edge area of the fully wound coil. After peeling off the Kopse, the light source is switched on and the spindle row is scanned by the light beam. Remains a head after that Pulling back on the spindles, the light beam falls on the edge area of the head, whereby no light on the Light receiver falls and the puller is turned off. However, if light reaches the light receiver, what one Corresponds to proper removal of all cops, so swivels the bracket with the light source switched on again in an upper position.

Since the light beam in this known method through the corresponding to the edge area of the fully wound coil Zones runs, this method has the disadvantage that. a not withdrawn, only partially wound bobbin or a empty remaining sleeve can not be detected and reported by the light beam. The procedure can therefore be used for a

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Exchange of bobbins for sleeves, in which by one on The exchange device arranged on the machine both pulls the cops off automatically and the sleeves automatically can not be used, because the unreported sleeves left behind in the following automatic placement of new sleeves on the spindles serious malfunctions can occur and the replacement device can be destroyed in the process. Also can with this known method because of the limited expansion of the bracket always only a limited number of spindles by means of the Light beam are scanned, which in the case of an exchange device permanently installed in the machine, all of which are connected to one Can operate spindles located on the long side of the machine is undesirable.

It is therefore the object of the present invention to address the disadvantages to eliminate the previously known method and a monitoring of the exchange of cops against sleeves on a To enable exchange device, which is firmly connected to the spinning machine and with the automatic both all copings located on one long side of the machine are pulled off the spindles at the same time, as are all sleeves can be attached at the same time.

Based on a method of the type mentioned at the outset, this object is achieved in that a 'on the machine arranged exchange device automatically both the cops are removed and the sleeves are attached and the spindle row is scanned by the light beam or the light beam at least after the cops have been pulled off, the corresponding areas above the spindles through a projecting part of the sleeves directed onto the light receiver will.

209853/0627

The device for performing the method with one on one longitudinal side of the ring spinning or ring twisting machine Pulling device assigned to the spindle row for automatic Pulling off the cops from the spindles and with a light source arranged at one end of the row of spindles and one at the light receiver arranged at the other end of the spindle row, which is connected to a disconnection device for driving the extraction device, the centers of light source and light receivers lie on a straight line connecting the runs outside the spindles and within an area corresponding to the outer diameter of the head, is thereby characterized in that the light receiver is the disconnection device for driving one arranged on the machine Actuated replacement device for automatically removing the cops from the spindles and attaching sleeves to the same and the centers of light source and light receiver lie on the connecting straight line that runs above the spindles through areas that protrude above the spindles Part of the sleeves correspond.

In one embodiment of the method according to the invention, the cops can in an automatic process by gripping members are taken on a movable up and down, on a longitudinal side of the machine extending carrier for example, can be arranged at a distance between the spindles. By then raising the carrier can automatically pull off the bobbins and, for example, after swiveling it away from the machine to .einer Cops are deposited. Then the sleeves provided previously, for example, can automatically pass through for example, the same gripping organs are taken and conveyed from the carrier to the spindles and by lowering the carrier be attached to the spindles.

209853/0627

The light source can be any light source suitable for the method according to the invention and with optical devices, such as "for example lenses and / or mirrors for generating a light beam to be directed onto the light receiver or Be equipped with light beam, whereby under "light beam" a bundle of light rays is also understood. The light receiver can be any, for example, tuned to the light source Detector such as a photocell., Secondary electron multiplier or the like.

The light source and the light receiver can be arranged in such a way that the centers thereof are on the straight connecting line lie, for example, above tips of the spindles below an upper edge and within an outer diameter the pods runs. The spindle row can then from the one directed through this area to the light receiver Light beam are scanned. In another embodiment of the invention, the centers of the light source and Light receiver but also be arranged in such a way., ■ That only one Part of the light emitted by the light source is interrupted by, for example, a head sleeve that has remained and the Light receiver can only be partially darkened. This Case can exist when the connecting line, for example corresponding areas runs through the upper edge of the sleeve, so that, for example, by a non-removed cop in the Viewed cross-section of the light beam, only part of the same is interrupted by the part-of-the-sleeve projecting beyond the spindle head and a corresponding part of the receiver can be covered. It can then have a corresponding cross-section reduced light beam continues to fall on the light receiver, which can only react to the covered part of the light beam. The light source can be on a drive side of the Machine and the light receiver on one of the drive side

209853/0627

opposite part of the machine or in the opposite direction, so that the emitted by the light source Light beam, for example, across the entire row of spindles located on the long side of the machine Light receiver is directed and along the whole long side the machine can run. But it can also, for example, for reasons of the light intensity of the light source, the Sensitivity of the light receiver or because of a too long Light path successively along the spindle row alternating light sources and light receivers, whereby the entire row of spindles can be detected in several scanning sections.

The light source is switched on, for example, after the cops have been removed, and if light can fall on the receiver, the replacement process can continue. If the light beam falls on the upper part of a cop that has remained, for example, on the spindles, the replacement process can be interrupted so that this disturbance can be eliminated. The light receiver can be coupled to a program switch of the replacement device and, for example, when light strikes the light receiver in the program switch, a signal can be triggered by which the replacement process can be continued. If, after switching on the light source, no light falls on the light receiver or if, for example, only partial irradiation occurs, an insufficient amount of light can be triggered by the light receiver in the program switch to interrupt the exchange process. The light source can, however, also be switched on during removal or even before removal. In this case, the light receiver may be switched such that the same, for example, after the

209853/0627

Pulling off the cops comes into operation because the light beam is in front because of the fact that the eye is still on the spindles, it does not reach the light reception and therefore this can give an undesirable signal at this point in time.

In a further embodiment of the invention, after the sleeves have been slipped on, the row of spindles can - by means of the Light beam are scanned again so that it can be determined whether, for example, the insertion of the sleeves has taken place. In this case, after the sleeves have been put on, for example no or only an insufficient one falls Lots of light on the light receiver. The light receiver or the program switch can in this embodiment, for example, before, during or after plugging be switched so that a signal can be triggered in the program switch when the light beam hits the light receiver can fall, whereby the replacement device can be switched off or, for example, restarting the Spinning or twisting machine cannot take place. Subject, for example, the examination of the attached sleeves can then the light receiver or the program switch is switched back to checking that the cops have not been removed during the removal process will.

The invention is explained below on the basis of exemplary embodiments explained in more detail with reference to the drawing. Show it;

1 shows a view of a ring spinning machine with the cops drawn off in a schematic, partially broken away representation.

FIG. 2 shows the ring spinning machine according to FIG. 1 from above in section along the line H-II,

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Pig. 3 the ring spinning machine according to Pig. 1 with not deducted Kops,

Pig. 4 the ring spinning machine according to Pig. 3 from above in section along the line IV-IV,

♦ Pig. 5 Part of the Pig single spinning machine. 3 partially

broken up,

Pig. 6 the part of the single spinning machine according to Pig. 5 in plan, and

jig. 7 the single spinning machine according to Pig. 1 with sleeves attached.

The Pig. 1 and 2 show a single spinning machine 3? which on both sides has a number of spindles 4, 4 'arranged in a row along the machine 3 (only shown for one side of the machine in Pig. 1). ^{A carrier 6, 6 1 of} great stability extends along each machine side 5 '-5' of the single spinning machine 3 and can be equipped with any suitable type of gripping members (not shown) at a distance corresponding to a spindle pitch A. Such gripping members are described in detail, for example, in Swiss patent specification No. 500 303, which is why reference is made to the same at this point. The entire carrier 6 or 6 ¹ is mounted in the ring spinning machine 3 by rods 7 i which can be moved up and down and rotated in guides 8, 8 ^1. The guides 8, 8 'are held by cross members 9, 9 ¹ , which extend away from columns 10 of the ring spinning machine 3 to the machine sides 5 »5 ¹ . Like in Pig. 1, the guides 8 are connected at their upper end to a rail 11 which is arranged on the ring spinning machine 3 and which extends above the machine on each machine side 5. The rods 7 are suspended from cables 12 which are freely attached to the rail 11

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rotatably mounted rollers 13 are guided and, for example, connected to a motor winch (not shown) so that the rods and thus the carrier 6 can be moved up and down the carrier 6 is rotatably connected and through which the carrier 6 below. Rotating the rod away from the ring spinning machine 3 or can be pivoted towards the same. Below and in front of the spindle bench 2 is an Eops-r tray 15 with side walls 16 (only one side wall shown), between which there is a conveyor belt (not shown), to which at one end of the Eops tray 15 another rising, at the end faces open channel 17 is connected, which also contains a conveyor belt (not shown). 1 shows the carrier 6 in a raised position after the cops 18 have been withdrawn, which after pivoting the carrier 6 or 6 ¹ away from the machine 3 and after lowering the same into a position (indicated by dash-dotted lines in FIG. 1) can be stored below the spindle bench 2 in the cop holder 15. Such a replacement device is in the Swiss patent Hr. 515 179 described in detail.

For the sake of clarity, in! Ig. T and 2 a drafting system delivering a load and one for the. Ring spinning machine 3 necessary ring rail equipped with rings and also a drive for actuating the swiveling device 14 omitted.

Like the! Ig. 1 and 2 further show, there is a light source 19 or 19 'at one end of the rows of spindles 4 and 4 ¹ in the drive head 1 and in a part 20 opposite the drive head 1 at the other end of the spindle row 4, 4 ¹ the ring spinning machine 3 each have a light receiver 21 and 21 'arranged, with a center 22 and 22' of the

2 0 9 ti C "■> ι 0 6 2 7

Light source 19 or 19 "and a center 23 or 23 'of light receiver 21 or 21' ^{lie on a straight connecting line B or B 1} , so that a light beam 28 emanating from light source 19, 19 'hits light receiver 21, 21 The connecting straight line B runs above the spindles 4, 4 'through areas which correspond to a sleeve part 24 of the cops 18 protruding above the spindles or 4 *, as shown in FIG. 1 is shown for the head 18n indicated by dashed lines on the spindle 4n. The method according to the invention is carried out with the device of FIG. 1 and as follows:

After the cops 18 have been withdrawn from the spindles 4, 4 ¹ by moving up the carrier 6, the carrier 6 with the cops 18 is in the position shown in FIG. Now the light sources 19? 19 'is switched on by a switching device 25' which is connected by the line 26 to a programming device 27 and is controlled by the same. The light beam 28 or 28 'emitted by the light sources runs over the spindles 4, 4 ¹ through the areas corresponding to the upper sleeve part 24 of the cops 18 to the light receiver 21, 21', all spindles being scanned. Since all the cops 18 have been withdrawn, the light beam 128, 28 * falls on the light receiver 21, 21, which is also connected to the programming device 27 and can be switched on by the same and reports when all spindles 4, 4 are ^scanned along the machine 3 by the light beam 28, 28 'the proper removal of all cops 18. The light source 1'9, 19' and possibly the light receiver 21, 21 'are then deactivated, for example by switching off, and the further removal of the Cops 18, that is to say swiveling out and lowering of the embossing 6 over the coping tray 15 and depositing the cops 18 on or in the same.

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3/0627

If now, as FIGS. 3 and 4 show in the otherwise same system according to FIGS. 1 and 2, a cop 18 'is made of any one Basically not withdrawn and remains on the spindle 4,. so is the upper sleeve part 24 of the head 18 'in Beam path of the light beam or light beam 28, whereby this beam or this beam is interrupted and is prevented from impinging on the light receiver 21. Of the Light receiver 21 reports this fault in the programming device 27, which has a not shown drive of the cop changing device., The 'to the programming device 27 is connected, interrupts and thus the further removal and subsequent automatic insertion of sleeves prevented.

As in FIGS. 5 and 6 for the not withdrawn cop 18 ' 3 and 4 show in detail that the connecting straight line runs B above spindle tips 30 of the spindles 4 and within one through the outer diameter D of the cop 18 'defined area, this area in detail by an upper edge 31 of the spindle tips ■ 30 protruding sleeve part 24 of the cops 18, 18 'and one outer diameter G of a sleeve 32 is limited.

As shown in Figs. 5 and 6, the falls from the Light source 19 (see Fig. 3 and 4) emitted light beam 28, in the center of which the connecting line B lies, according to the indicated arrows above the spindle tips and below the upper edge 3I as well as within the diameter C on the sleeve part 24, so that the light receiver 21 (see FIGS. 3 and 4) is completely covered by the sleeve part 24 and does not receive any light from the light source 19.

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209 85 37 062 7

Another embodiment of the invention is based on FIG described. It is assumed that in the manner described after the monitored removal of the cops 18 and depositing the same on the cop tray 15 (see also Fig. 1) sleeves 33 for renewed Winding a spun thread were attached and the carrier 6 raised or into the position shown in FIG has been lowered into the position shown in dashed lines. After the sleeves 33 have been attached, the light source 19 is switched on and with a light beam 34- the spindle row above the Spindles 4-, as described in the previous embodiments, scanned. The light beam 34- falls on the upper part 35 of the first sleeve 33 attached to the end of the row of spindles 4- facing the light source 19 and does not arrive in the light catcher 21. The programming device 27, the is connected to a drive of the machine 3, 'is switched in this case in such a way that if the light beam fails 34- the re-spinning at the light receiver 21, i.e. Starting the machine 3 can take place.

Are for example by the carrier 6 of the automatically working Exchange device no sleeves have been attached, the light beam 34- can fall on the light receiver 21, which reports the absence of the sleeves on the spindles 4 in the programming device 27, whereupon by the programming device 27 a new start of the machine 3 and thus an undesired winding of the thread on the not with sleeves loaded spindles 4- can be prevented. In this way, it is also possible, for example, to carry out a last one Spinning process the entire system can be shut down automatically by monitoring by means of the light beam 34-.

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With the method according to the invention, for example all cops 18 according to S ¹ Xg. 1, malfunctions can also be monitored, which can occur, for example, due to deformation or jamming of the coping sleeve on the spindle. As a result, the coping can no longer be properly removed from the spindle, whereby the spindle can be dragged out of its security. Although the cops with the carrier 6 of FIG. 1 can be raised so far that the beam path between the light source and the light receiver is not impaired by the withdrawn cops, there is then, for example, the torn off spindle or a part protruding downward away from the cops same in the beam path and interrupts the light beam. Since then no or essentially no light can fall on the light receiver, the programming device can interrupt the further exchange process even in the event of this malfunction and damage to the exchange device or the spinning machine can be prevented.

The inventive method has the advantage that the automatic The process of exchanging the cops for sleeves after removing all cops, for example, is ensured or guaranteed can be. A visual check for proper removal of all cops by the operating staff and thus any necessary shutdown of the exchange device, This means that there is no need to interrupt the automatic replacement process for control purposes. One The uncertainty that exists in the visual inspection that a head that has not been removed can be overlooked can be caused by the methods according to the invention are eliminated and thus prevented, that during the subsequent automatic attachment of the sleeves, a sleeve is pressed onto a head that has not been removed can result in destruction of the replacement device

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9 8 S3 / 0 6 2 7

or the spinning machine. Another advantage
The invention is that by eliminating interruptions in the replacement process for control purposes, the automatic process can be made more time-saving and thus more economical * and the safety and efficiency of the system can be increased.

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Claims (41)

Claims 1. Method of monitoring a replacement of cops against tubes on spindles on ring spinning and ring twisting machines, in which those are located on a row of spindles Copes are pulled off automatically and the spindle row is scanned by a light beam can, the outside of the spindles and within an area corresponding to an outer diameter of the cops the row of spindles runs along from a light source to a light receiver, thereby g e k e η η ζ ei chnet that by one arranged on the machine Exchange device automatically both the cops are removed and the sleeves are attached and the row of spindles at least after the cops have been drawn off by the light beam or the light beam is scanned, the corresponding areas above the spindles through a part of the sleeves protruding from the same directed at the light receiver. 2. The method according to claim 1, characterized net that the bobbins open automatically after being pulled off A cop rest is placed and then the sleeves are automatically fed to the spindles and attached to the same will. 3. The method according to claim 1 or 2, characterized in that g e k e η η ζ ei chnet that the light beam falls on the light receiver when scanning and the replacement is automatic continues. 209853/0627 4. The method according to claim 3, characterized in that the light receiver generates a signal which causes the replacement to continue. 5. The method according to claim 1, characterized in that that the light beam is interrupted when scanning in the areas and that by the interrupted light beam darkened light receiver interrupts the replacement. 6. The method according to claim 5 »characterized in that that the light beam is interrupted in its entire cross-section and the completely darkened light receiver the replacement interrupts. 7 · The method according to claim 5 »characterized in that that the light beam is partially interrupted in its cross-section and the light receiver is partially darkened the replacement interrupts. , 8. The method according to claim 5 »characterized in that that the light beam on the protruding part of the sleeve of the remaining after removal on the spindle Kopses falls and is interrupted. 9. The method according to claim 5 »characterized in that the light beam is located on one in d« n areas Part of the spindle, which is carried away when the cops are removed, falls and is interrupted. 10. The method according to claim 5 »characterized in that that the darkened light receiver generates a signal, which interrupts the exchange. - 16 - 209853/0627 11. The method according to claim 1, characterized in that that the light beam is directed to the light receiver and the light receiver at the latest after it has been removed comes into operation after being pulled off. 12. The method according to claim 11, characterized in that that the light source is switched on at the latest after removal. ι3 · The method according to claim 1 or 3 »thereby g e k e η η ζ egg paves the light beam after scanning is disabled. 14. The method according to claim 13, characterized in ei c h net, that the light source is switched off. j - ^ 15 · The method according to claim 1 or 3 »characterized in that the light receiver after scanning is disabled. 16. The method according to claim 1 or 3 ₅ characterized geke η η ζ ei chnet that the cops are deposited on a coping tray after peeling. 17 · Method according to claim 1 or 2, characterized in that g e k e η η ζ ei chnet that the spindle row scanned by the light beam after the process of attaching the sleeves will. 18. The method according to claim 17, characterized in that that the light beam is directed to the light receiver after the attachment process and the light receiver comes into operation. ,. ■ - 17 - 209853/062 7 19. The method according to claim 17, characterized in, that the light beam falls on the protruding parts of the sleeves during scanning after the sleeves have been plugged on and is interrupted and a start-up of a spinning process takes place. 20. The method according to claim 17, characterized in that that the light beam falls with its entire cross-section on the light receiver during scanning and the light receiver the spinning machine stops. 21. The method according to claim 17, characterized in that it is marked without t that the light beam is partially interrupted in its cross-section, the light receiver is interrupted by the The light beam is darkened and the start-up is initiated. 22. Device for carrying out the method; .According to claim with a pull-off device assigned to a row of spindles on one longitudinal side of the ring spinning or twisting machine for the automatic removal of the cops from the spindles and with a light source arranged at one end of the row of spindles and a light receiver arranged at the other end of the row of spindles, which -with a disconnection device for driving the puller is connected, the centers of light source and light receiver on one Connecting straight lines lie outside the spindles and inside a corresponding to the outer diameter of the cops Area, characterized that the light receiver is the cut-off device for the drive of an exchange device arranged on the machine for automatic removal the cops are actuated by the spindles and the pushing of sleeves onto them, and the centers of the light source and light receivers are on the connecting line, which runs above the spindles through areas that form part of the sleeves protruding above the spindles correspond. - 18 209853/0627 23. The device according to claim 22, characterized net that a -equipped with gripping organs to grasp the cops up and down movable carrier is provided, which extends on a longitudinal side of the machine. 24. The device according to claim 23, characterized net that the gripping organs also for gripping the sleeves are provided. . 25. The device according to claim 22 and 23, characterized in that g e k e η η ζ ei c h η e t that a coping tray extending along the long side of the machine is provided. 26. The apparatus according to claim 22, characterized in that the light source and the light receiver on the Connecting straight lines that run above the tips of the spindles through areas that pass through an upper edge of the part of the sleeves protruding from the spindle tips and an outer diameter of the sleeves are limited. 27. The device according to claim 26, characterized in that that the light source and. the light receivers are on the straight line connecting below the upper edge and runs within the outer diameter of the sleeves. 28. The device according to claim 22, characterized in that that the light source at one end of the spindle row and the light receiver at the other end of the spindle row is arranged. 29. The device according to claim 28, characterized in that g e k e η η drawing-n e t that the light source in a drive head of the machine and the light receiver located at the end of the machine is arranged in a part of the machine opposite the drive head at the other end. - 19 - 209853/0627 30. The device according to claim 22, characterized in that a programming device for Control of the exchange device is provided to which the light receiver and the disconnection device for the drive of the exchange device are connected; . 31. The device according to claim 22, characterized in that the light source with a switching device sum switching the light source on and off. 32. Device according to claims 29 and 30, characterized in that the switching device is connected to the programming device. 53 · Device according to claim 30, characterized in that it is η η ζ ei eh net that a drive for the spinning machine is also connected to the programming device is. 3 ^£ ί ·. Y'-rrie'ii-uung according to claim 50, characterized in that geke η η - ζ · c:! c Ii net that the programming device is set up for actuation by the Liclitempfäiiger after the cops have been removed. 35. Device according to claims 30 and 34 ·, 'characterized ge characterizing ze i seframe that the programming means to switch on the light source and zv: v shutdown üei darkening of the light receiver is arranged after the removal of the cops of the drive of exchanging means. - 20 - 209853/0627 36. Apparatus according to claim 30 or 34 * characterized g e mark ei chnets that the program setup for further actuation of the Ausweehseleinrichtung upon impact a light beam from the light source is set up on the light receiver. 37 · Device according to claim 34, characterized in that it is e k e η η ζ ei chnet that the programming device to interrupt the actuation by the light receiver is set up, 38. Apparatus according to claim 34 · or 37 5, characterized in that the programming device is set up to switch off the light source. 39 · Device according to claim 30, characterized in that g e k e η η, that the Programini he device for actuation by the light receiver after plugging there? Sleeves is set up. 4-0. Device according to claims 30, 33 and 37 »thereby gekennz ei chne-t that the programming device for switching on the light source and for switching on of the drive of the spinning machine connected to the programming device when the Light receiver is set up after attaching the sleeves. 41. Device according to claims 30, 33 and 37 »thereby characterized in that the programming device is used to switch on the light source and to interrupt it of the drive for the spinning machine when a light beam from the light source hits the light receiver is set up. 21 - Blank page