EP0916753A2 - Spinning system with roving frames and with ring spinning machines - Google Patents

Abstract

In a spinning plant, at least one color sensor (17) automatically registers the different colors of the roving bobbin sleeves (11) moving past on the continuous conveyor (7), to control the working of the transfer unit (5) accordingly. A color sensor is at each transfer unit (5) for its control. At least one color sensor is at the conveyor, linked to a central control (19) to set the working of at least one transfer unit at a roving frame (1). The color sensor has discrimination for at least n different colors, where n is the number of roving frames installed, or the color discrimination is for n+m colors, where n is the number of roving frames and m the number of roving qualities which can be changed simultaneously. At least one color sensor is in front of the filling sensor (12), in the direction of travel of the roving bobbins (10) and roving bobbin sleeves (11), or vice versa to activate the color sensor. The color sensor and filling sensor are combined in a sensor unit. An Independent claim is included for the operation of the spinning plant. As a suspended conveyor (7) position passes towards a transfer unit, a preceding color sensor (17) registers whether the position is occupied by a full roving bobbin or an empty roving bobbin sleeve, for the filling sensor to be activated as required according to the color/quality. Or the filling sensor monitors the conveyor position to activate the color sensor.

Description

The invention relates to a spinning system with at least one Roughing machine and with at least one ring spinning machine and with an endless, rotating transport link, by means of which Roving bobbins from the roving machine to the ring spinning machine and roving sleeves from the ring spinning machine to the roving machine are transportable and at least temporarily roving bobbins with different roving qualities on roving tubes associated with the different roving qualities transported different colors, and with at least one automatic converter, by means of its roving bobbins and roving sleeves certain roving quality or sleeve color in the Transport member adjustable and removable from it. A Spinning system in the sense of the invention accordingly comprises a single one Transport member, but at least one roving machine, at least a ring spinning machine and at least one converter.

Such a spinning system is known from DE 196 01 286 C1. In it, a leader is assigned to each leader automatically empty roving sleeves from one on the roving machine removes passing transport link and by full Roving bobbins replaced. The roving machine delivers roving bobbins from a roving quality with which the transport link is fitted will and is. However, when changing the roving quality contains the transport link until all roving bobbins are replaced the "old" quality against the "new" quality temporarily two roving qualities.

According to EP 0 314 631 B1, a spinning system can also be designed in this way be that two leader machines a common transport link is assigned to the roving bobbins of both roving machines to the ring spinning machines assigned to them or the Roving sleeves back. Here, the two roving machines deliver often different roving qualities, with which then the transport link is loaded at the same time.

If the transport link is equipped with more than one roving quality the task arises, the different roving qualities both for operators and in particular to make it distinguishable for such automatic facilities, remove the roving bobbins or roving sleeves from the transport link or set in this. With such facilities they are converters, the empty roving sleeves from the Remove the transport link and feed it to a roving machine, in which they are rewound with roving. This Kind of repeaters are hereinafter referred to as leader machines designated. It is obvious that the translator of the Roving machine may only feed roving sleeves whose Color of the roving quality delivered by the roving machine assigned. But it can also be about implementers that Remove full roving bobbins from the transport link and put them in adjust the creel of a ring spinning machine. That kind of translators are referred to below as ring spinning machine converters. Here too it is obvious that the translator of the Ring spinning machine may only feed roving bobbins whose Color of the roving quality processed by the ring spinning machine assigned.

The invention was accordingly the object of roving bobbins with different roving qualities both for the operators as well as for the roving bobbins and the roving sleeves Automatically handling devices such as implementers can be distinguished close.

To roving bobbins with different roving qualities for operators To make it distinguishable, it has long been common Practice of using different roving sleeves in different colors and assign the roving qualities to certain tube colors.

It is also known to use sleeves for yarns and for rovings to provide machine-readable, optical or magnetic codes. The quality of the roving could also be included in these codes can be set. Such codes are, however, by operators visually unreadable. An operator could therefore Roving quality of a roving spool and an improper one Do not recognize a converter's sorting work.

The invention solves the problem by the in the license plate of the main claim. This solution offers the advantage that on the one hand an operator the quality easily recognize the roving on a roving spool and, for example, when replacing expired roving bobbins in the creel the ring spinning machine a roving spool by hand with the right one Roving quality can choose. On the other hand, a Recognize the translator by the color of a roving sleeve, a roving spool which quality is present or in a position of the Transport link was included - and usually by one Roving bobbin of the same quality is to be replaced. In case it is the roving quality is that of the roving machine is delivered or processed by the ring spinning machine is, the pre-spinning machine converter or the ring spinning machine converter is assigned, the converter can carry out the conversion process carry out.

Because a roving machine converter only roving sleeves the one assigned to him or his leader Color / roving quality, it is also ensured that the Numerical equipping of the transport member with roving bobbins of the different roving qualities is maintained.

The arrangement of a color sensor can also be useful if only one roving machine connected to the transport link is and the transport link usually only with the one roving quality which is delivered by the roving machine becomes. If the one delivered by the roving machine When roving quality is changed, it is for several reasons advantageous if this change can be made "on the fly", i.e. if the roving bobbins of the "new" roving quality are already in the transport link can be adjusted while it is too still contains roving bobbins of the "old" roving quality. When a Roughing machine converter, which equips the transport link causes, according to the invention equipped with a color sensor is, he can make this flying change, i.e. the removal of roving bobbins and roving tubes of the "old" roving quality and the setting of roving bobbins of the "new" Carry out roving quality yourself without the intervention of an operator, because he can distinguish the roving qualities.

But it is also conceivable that of the through the transport member operated ring spinning machines with one or more a different roving quality is to be served than that that of the roving machine supplying the transport member is delivered. Here, the conveyor belt from Hand or by a single or provided mobile Converter, for example, from a transport container with the roving bobbins of the other roving quality. Here the Roving machine converter the roving sleeves of the other color / roving quality can recognize to know that it is them Do not feed "his" roving machine and therefore not from the Can remove the transport link. This is due to the invention Color sensor guaranteed.

But the invention also offers in normal operation Color sensor has the advantage that it is wrong in a transport link roving sleeves not provided on him Color / roving quality can be recognized and reported so that Confusion of roving qualities are avoided and that Errors can be followed up.

Especially when two or more are attached to the transport member Roughing machines are connected that have different roving qualities deliver is a quality sorted company the spinning system is only possible with the color sensor according to the invention. As a rule, each converter is equipped with a color sensor fitted.

By using a central, intelligent control device offers the possibility, also when connecting two or more roving machines to the transport link only one Color sensor to be provided. It conducts its color recognition signal Control device to it the position of the transport link assigns where it was generated and controls - as soon as this position reached the responsible roving machine converter has - this accordingly. So that a color detection signal cannot be falsified by subsequent interventions the color sensor advantageously immediately before or Transfer station / s arranged.

The converters are intended to have empty roving sleeves in the creel the ring spinning machine or in the transport link through full roving bobbins to replace. They therefore also have a filling sensor on, which - in the case of the roving machine converter - a roving sleeve or - in the case of the ring spinning machine converter - recognizes a roving bobbin in the transport member and if necessary triggers a change process.

Scanning a color / roving quality only makes sense when an empty roving sleeve is felt and vice versa, i.e. scanning an empty roving sleeve only makes sense, when the appropriate color / roving quality is felt. A advantageous development of the invention therefore provides that Filling sensor and color sensor dependent on each other in the way are that an upstream of the two sensors the downstream only activated when on the upstream sensor Signal is present in connection with a signal of the subordinate Sensor can trigger an operation. Here, both the color sensor precedes the filling sensor and activates it be the fill sensor as well as the color sensor.

Corresponding to the further development of the Invention, according to which only one color sensor is provided, can be used for the roving machine converter also provided only one fill sensor be. In this case, it seems particularly advantageous if color sensor and fill sensor combined to form a sensor unit are.

Having an intelligent, central control device in everything Is usually designed so that the current position of the Knows the transport link and can also control its movement, can use these sensors on their roving machine converters be dispensed with, so that the internal control of these units can be significantly simplified.

Commercial color sensors are designed so that they can recognize up to six clearly different colors. It is obvious that a color sensor for the invention However, application recognize at least as many colors should, like different roving qualities in the transport link can occur. Since this is often unpredictable, based on the given scope of a spinning system - specified be that a color sensor at least one of the number of to the Transport link connected corresponding roving machines Number of colors should be able to recognize.

If a roving machine converter also changes a roving quality should be able to perform automatically increases the number of colors to be distinguished for every pair of roving qualities that in a spinning machine at the same time should be able to be automatically changed to another Colour.

The number of roving machines that can be operated by one transport link and thus the roving qualities to be distinguished or sleeve colors depends on the conveying capacity of the transport link, on the conversion performance of the roving machine converter and on the production performance of the roving machines. This As a rule, the number should not exceed three. There a A roving quality is only changed when it is is unavoidable, it rarely occurs and a simultaneous Switching from more than one roving quality is likely to be the rare one Be an exception. The number of served by a transport link Ring spinning machines only have an impact on the number of different roving qualities than with a larger one Number of ring spinning machines the probability increases that different roving qualities have to be maintained and that occasionally two roving qualities were changed at the same time should be.

Fig. 1

den Grundriß einer Spinnanlage mit einem zwei Vorspinnmaschinen und eine Mehrzahl von Ringspinnmaschinen bedienenden Transportglied;

Fig. 2

die Draufsicht auf die beiden, Vorgarnspulen und Vorgarnhülsen einzeln umladenden Umsetzer zweier Vorspinnmaschinen an einem Transportglied;

Fig. 3

die Draufsicht auf die beiden, zwei Vorgarnspulen zum Umladen vorhaltenden Umsetzer zweier Vorspinnmaschinen an einem Transportglied;

Fig. 4

die Anordnung der Steuerglieder zum Steuern des Umladevorganges;

Fig. 5

den Grundriß einer Variante der Spinnanlage.

Exemplary embodiments of the invention are shown schematically in the figures of the drawing. Show it

Fig. 1

the layout of a spinning system with a transport link serving two roving machines and a plurality of ring spinning machines;

Fig. 2

the top view of the two roving bobbins and roving sleeves individually reloading converter of two roving machines on a transport member;

Fig. 3

the top view of the two, two roving bobbins for reloading relocating two roving machines on a transport member;

Fig. 4

the arrangement of the control elements for controlling the reloading process;

Fig. 5

the layout of a variant of the spinning system.

As can be seen from FIGS. 1 and 5, the spinning system comprises, based on the invention of which is illustrated and described, two roving machines 1 and 2 and four or five ring spinning machines 3. It is understood that the invention also with only on spinning systems one or more than two roving machines and with only one or another number of ring spinning machines can be.

The roving machines 1 and 2 do not have one in detail shown device for automatic changing full roving bobbins against empty roving sleeves. This facility can be designed as described, for example, in DE 195 05 050 C2 to which reference is made in this respect. This facility comprises a rotating in the roving machine 1 or 2 Transport device 4, by means of which the full roving bobbins a pre-spinning machine converter assigned to the respective pre-spinning machine 5 supplied or supervised by the converter empty roving sleeves are removed.

In the variant of FIG. 1, the ring spinning machines 3 are included Ring spinning machine converters 6 equipped so designed can be as shown, for example, in DE 37 34 275 A1, however, as stated in DE 39 41 822 C2 on the replacement individual roving bobbins turned off. On the pamphlets insofar referred. The ring spinning machine converters 6 are movable and can along the gates of the ring spinning machines 3 Roving bobbins that have expired or are about to expire remove from the gate of the ring spinning machines and counter replace full roving bobbins fed to them. In the illustrated Embodiment is each ring spinning machine 3 with each a ring spinning machine converter 6 on each side. However, it is also possible for each ring spinning machine 3 only assign a ring spinning machine converter 6, which is then one Move the end face of the ring spinning machine to the other side can. In the variant of Fig. 5 it is provided that the replacement of roving bobbins and roving sleeves by operators done by hand.

The roving converter 5 can be designed as they are described, for example, in DE 197 02 163.8, to which extent Is referenced. As can be seen from Fig. 4, the Converter sleeve gripper on which is rotatable at both ends of a mounted, liftable and lowerable, double-armed lever 8 sit and move accordingly on a circular path 9. This Circular path 9 affects both the transport member 7 and the Transport device 4 so that the sleeve gripper individual roving bobbin 10 from the transport device of the respective roving machine Unclip 1 or 2 and place in a hanging holder of the Lock the transport member and vice versa a roving sleeve 11 release from a hanging bracket of the transport link and into can latch a hanging bracket of the transport device.

Through the two roving machine converters 5 and along the Gate of the ring spinning machines 3 - in the variant of FIG. 1 along the movement paths of the ring spinning machine repeaters 6 - is an endless, essentially continuously rotating transport link 7 led that as an endless, in a closed Link chain-guided link chain can be formed on the common hangers are arranged in the roving bobbins and Roving sleeves automatically through the roving machine converter 5, the ring spinning machine converter 6 or by hand by operators are clickable.

Both the pre-spinning machine converters 5 and the ring spinning machine converters 6 preferably have a light barrier trained fill sensor 12, the empty hanger / full Can recognize coil / empty sleeve in the transport member 7. The filling sensors 12 are at the level of the windings of the roving bobbins 10, however arranged below the hanging bracket in the transport link. For the sake of completeness it should be mentioned that the ring spinning machine converter 6 have a further filling sensor which empty or almost empty roving bobbins in the creel of the ring spinning machine 3 can recognize. Because this fill sensor for understanding the invention is not essential, it is not shown here and not described in detail.

A sensor, not shown here, is assigned to the filling sensor 12, which the filling sensor when passing a hanging holder of the Transport member 7 activated. Its light barrier registered after activation when an empty hanging holder passes through, none Interruption, if an empty tube passes through, a short one Interruption and a longer one when a full spool passes through Interruption, each as a signal for the respective assembly serves as the hanging bracket position.

Furthermore, both the roving machine converter 5 and the ring spinning machine converter 6 preferably as a light barrier trained position sensor 15 on the inlet a hanging bracket of the transport member 7 in a change position 16 feels. The position sensor 15 can be familiar here way not shown and described the as Friction wheel pair 13 with motor 14 designed drive of the transport member 7 control so that the hanger in case of need a change position 16 comes to a standstill.

According to the roving machine converter 5 and also the ring spinning machine converter 6 also one in all Usually designed as a light sensor color sensor 17, which the Color of a roving sleeve 11 passing by can be recognized. Of the Color sensor 17 is preferably at the level of those areas of the Roving sleeves arranged that are not covered by roving winding can be, so at their upper or lower end. Of the Color sensor 17 should be designed so that it has at least two can recognize different colors, usually it is sufficient when he recognizes up to six different colors.

The color sensor can be "intelligent" in the sense be that he is only given to him to be recognized when there is one Color emits a signal. However, it can also be designed in this way be that it differs for all colors recognizable by it Emits signals, which are then in a subordinate, accordingly "intelligently" trained control unit on the Presence of a certain color must be checked. It is assumed in the following that the respective color sensor 17th a converter 5 or 6 the respective filling sensor 12 in the running direction is arranged upstream of the transport member 7. In this case the filling sensor 12 and the position sensor 15 are only activated if a sleeve of the "right", ie the respective Converter and the respective roving or ring spinning machine assigned quality or color is recognized and further differentiation between full roving spool or empty roving sleeve is required. However, it is also possible that to assign the respective fill sensor 12 to the respective color sensor 17. In this case, the color sensor 17 and the position sensor 15 only activated if - in the case of a roving machine converter 5 - an empty roving sleeve 11 or one empty hanger or - in the case of a ring spinning machine converter 6 - a full roving bobbin 10 is recognized.

The color sensor 17 and the fill sensor 12 are advantageously within the respective first division field 18 of the hangers arranged on the transport member 7 before a change position 16. This has the advantage that the signals from the sensors immediately can be used for control. In the other case, Memory can be provided, which buffer the signals until the hanger to which a signal refers to the change position 16 arrives.

Finally, each leader machine translator contains 5 and everyone Ring spinning machine converter 6, a control unit 19 which incoming signals of the color sensor 17, the fill sensor 12 and the position sensor 15 and the change mechanism of the converter incoming signals processed and in via the line 20 passed functional control signals to the change mechanism and converted to the drive 13, 14 of the transport member 7. The functions of the control unit 19 are in later also explained in more detail.

As can be seen from Fig. 2, the transport member 7 - the in Direction of the arrow head rotates - at its inlet to the pre-spinning machine converters 5 loaded irregularly. It has in addition to empty hangers 21 also with roving sleeves 11 or 10 racks with roving bobbins each of the quality / color A (circles with a right-hand dash) and quality / color B (circles with a line on the left). The quality A is from the roving machine 1, the quality B from the Roughing machine 2 delivered.

If the color sensor 17 is one of the roving machine converters 5 recognizes a sleeve of "its" color / quality, it gives a signal to the control unit 19 of the converter, which then has a Control signal activated the fill sensor 12 of the converter. If the Filling sensor 12 a signal corresponding to an empty roving sleeve passes to the control unit 19 and this also a signal of Exchange device for keeping a full roving bobbin 10 on the double-armed lever 8, this activates the position sensor 15 for stopping the transport member 7 and for positioning of the hanging holder in the change position 16. If the Control unit 19 there is a confirmation signal of positioning, triggers it through a via line 20 to the changing device given control signal the reloading process. By this transfer process is the roving sleeve 11 from the transport member 7 removed and a roving bobbin 10 in the transport member mounted as well as immediately after this change process Transport member put into circulation again. If the transport link 7 and the transport device 4 of a roving machine 1, 2 are not at the same height and the new equipment the sleeve gripper on the double-armed levers 8 is therefore not can be done synchronously with the change process, the transfer process by depositing the roving sleeve 11 in the transport device 4 of the roving machine and picking up a new one Roving bobbin 10 is completed from its transport device.

If the control unit 19 has no signal about the presence of a Roving bobbin 10 by the changing device of the roving machine converter 5 is present, it triggers the positioning signal the position sensor 15 no control signal to the actuator 13, 14 of the transport member 7, so that it does not stop becomes. If a transport device 4 of a roving machine 1, 2 still contains roving bobbins 10 and there is a bobbin change pending, for which this transport device must be cleared the control unit 19 of the converter can be programmed so that they also roving bobbins in empty hangers 21 of the transport member 7 can be set. For a lot change the Control unit 19 also be programmable so that it causes the converter 5, both roving bobbins 10 and Roving sleeves 11 of a quality / color from the transport member 7 can be removed and with roving bobbins of the new roving quality or not to equip or empty hangers of the transport link to be equipped with roving bobbins of a new quality / color.

In many cases, the changing devices are the roving machine converters 5 designed according to FIG. 3 so that it simultaneously two roving bobbins 10 from the transport device 4 from a roving machine 1, 2 and to the individual or keep at the same time changing into the transport member 7 can. The converters 5 have two transfer positions for this purpose 16, 16 'with one of the double-armed levers 8. The Transport member 7 is then advantageously equipped so that two consecutive hangers with roving bobbins of the same quality / color. In this case the color sensor 17 and the fill sensor 12 already in the second hanging holder division field 22 before in the direction of travel of the transport member 7 arranged first change position 16. You can in this way recognize whether two consecutive hangers are covered with empty sleeves and together save time can be reloaded. If it doesn't, the converters are designed and controlled by the control unit 19 so controllable that individual roving bobbins and roving sleeves can be reloaded at one of the exchange positions 16, 16 ', on which a roving sleeve 11 is available for replacement and one Roving bobbin 10 is held for replacement.

It is advantageous to have several roving machines 1, 2 or at least the change positions 16 or 16 and 16 'of their converters 5 to be arranged at such a mutual distance that this one integer multiples n * a (n = 2, 3, 4, ...) of the division distance a corresponds to the hanging bracket in the transport member 7. In In this case, when the transport member 7 is at a standstill, reload several converters 5 while saving time.

In the event that the roving machines 1, 2 often have the same qualities deliver, it is advantageous to transport member 7 so to cause the change positions 16 of the roving unit 5 roughly a fraction of the number of connected Leading machines on the transport link are included two pre-spinning machines, for example, at a distance of half the length of the transport member, as shown in Fig. 5. On this is an approximately uniform assembly of the Transport member 7 accessible over its entire length. If only roving bobbins of one quality in a transport member 7 are promoted, the color sensor 17 can be shut down unless, in this case too, it should be monitored whether not accidentally a roving spool 10 or roving sleeve 11 "Wrong" color / roving quality gets into the transport member 7 is.

When the roving quality is changed on a roving machine 1, 2 should be, the expiring roving quality should immediately removed from the transport member 7 and by the new roving quality be replaced. To achieve this, the Control unit 19 can be programmed to use the leader machine converter 5 controls so that it both roving bobbins 10th and roving sleeves 11 of the expiring roving quality / color removed from the transport member 7 and no more roving bobbins or roving bobbins of the new roving quality in the transport link sets. The roving bobbins removed from the transport member 7 10 and roving sleeves 11 of the expiring roving quality should of course not be in the transport device 4 of the roving machine 1 or 2 set, but be filed separately. The changer of the converter 5 must be trained for this workflow.

The function of ring spinning machine converters 6 differs differs from that of roving machine converters 5 in that that they patrol 3 along the gate of the ring spinning machines and empty roving sleeves or those that are about to run out Search 11 in the gate. If a ring spinning machine converter 6 has discovered a roving sleeve 11 in the creel, it stops and prepares the change process. He records using its activated color sensor 17 and its possibly too activating fill sensor 12 (or vice versa) the color / roving quality and the fill level in the transport member 7 him passing roving bobbins 10 and roving sleeves 11. As soon as he a roving bobbin 10 of the "right", i.e. the roving quality has recognized that processed on the ring spinning machine 3 on which he works, uses his control unit Control signal to the drive 13, 14 of the conveyor belt 7 this silent and leaves by a control signal to the changing device of the converter 6, the roving sleeve 11 from the gate of the ring spinning machine against a roving bobbin 10 from the transport member replace. Then she sets the transport member 7 again moving.

Especially when - as shown in Fig. 1 - the Exchange positions 16, 16 'of those feeding into a transport member 7 Roughing machine converter 5 of two or more Roughing machines 1, 2 are adjacent, can be used for multiple roving machine converters 5 on a transport member 7 only one Color sensor 17 and possibly only one fill sensor 12 are provided be in the running direction of the transport member 7th expediently arranged immediately before these changing positions are. After a close interaction of the filling sensors according to the invention 12 and the color sensors 17 in the sense of activation of a downstream sensor by a upstream sensor is possible, the color sensor 17 and the fill sensor 12 are advantageous combined to form a sensor unit 23. The control unit 19 'is then no longer assigned to the converters 5, but instead this sensor unit 23.

Spinning mills often have an intelligent, central control device on the operation of the various machines of the Automatically control the spinning mill in accordance with its functions. In development the invention can in any case on the decentralized control units 19 the roving converter 5 are dispensed with and Signals of their filling sensors 12 or their color sensors 17 or 5 of such a central control unit 24 are activated, which then control the reloading this translator takes over. The central control unit 24 assigns the signals supplied to it by the color sensor 17 to the respective her known position of the transport member 7, for the These signals have been generated and can be used as soon as the Position the change position 16, 16 'of the "right" Roughing machine converter 5, that is, the one that applies Has handled roving quality, reached its fill sensor Activate 12. If you also have a fill sensor 12 generated signal is supplied, it can also Shut down the transport member 7 and the converter 5 immediately to Control the change process.

• daß eine Vorspinnmaschine nur mit Vorgarnhülsen derjenigen Farbe versorgt wird, die der von ihr produzierten Vorgarnqualität entspricht und demgemäß jede Vorgarnqualität immer nur auf Vorgarnhülsen mit der richtigen Farbe gewunden wird;
• daß eine mit einer Vorgarnspule bestückt gewesene Position des Transportgliedes wieder mit einer Vorgarnspule derselben Vorgarnqualität bestückt wird und daher die Bestückung des Transportgliedes mit Vorgarnspulen der verschiedenen Qualitäten quantitativ und positionsbezogen gleich bleibt;
• daß eine Ringspinnmaschine nur mit Vorgarnspulen derjenigen Farbe/Vorgarnqualität versorgt wird, die für sie vorgesehen ist.

By controlling the reloading of roving sleeves and roving bobbins in a color-dependent manner, in the event that a transport member transports roving bobbins of at least two different roving qualities,

• that a roving machine is only supplied with roving sleeves of the color which corresponds to the roving quality produced by it and accordingly each roving quality is always wound only on roving sleeves with the correct color;
• that a position of the transport member equipped with a roving bobbin is again equipped with a roving bobbin of the same roving quality and therefore the loading of the transporting member with roving bobbins of different qualities remains quantitatively and positionally the same;
• that a ring spinning machine is only supplied with roving bobbins of the color / roving quality that is intended for it.

There can also be no confusion, for example when Positions of the transport link, for example, by an operator Roving bobbins or roving sleeves of other roving quality - ie color - be loaded. A translator guides his roving machine only roving sleeves of the "right" color / roving quality and always populates the transport link with a roving spool of the "right" roving quality.

The quality of a roving means all parameters which makes it different from another roving, in particular its delicacy, its material, in the case of mixtures the mixing ratio, its color, etc. A mix-up The roving qualities can be serious and particular then costly mistakes if it is late, if necessary is only recognized in the finished product.

List of reference numbers

1, 2

Leader machines

3rd

Ring spinning machines

4th

Transport device

5

Roughing machine converter

6

Ring spinning machine converter

7

Transport link

8th

Double-armed lever

9

Circular path

10th

(Full) roving bobbin

11

(Empty) roving sleeve

12th

Fill sensor

13

Pair of friction wheels

14

Motor of the friction wheel pair

15

Position sensor

16, 16 '

Change position

17th

Color sensor

18th

Hanger bracket division

19, 19 '

(Central) control unit

20th

management

21

(Empty) hanging holder

22

Hanger bracket division

23

Sensor unit

24th

Central control unit

a

Mutual distance (division) of the Hang holder in the transport link

n

Number of connected to the transport link Leader machines

n / A

Integer multiple of the pitch (n = integer)

m

Number of roving qualities used at the same time should be changeable

Claims (10)

Spinning system with at least one roving machine and with at least one ring spinning machine and with an endless, rotating transport member, by means of which roving bobbins can be transported from the roving machine to the ring spinning machine and roving sleeves from the ring spinning machine to the roving machine, and that at least temporarily roving bobbins with different roving qualities on roving tubes with the different Various colors assigned to roving qualities are transported, and with at least one automatic converter, by means of which roving bobbins and roving sleeves of certain roving quality or sleeve color can be set into and removed from the transport member,
characterized in that
At least one color sensor (17) is provided, which for automatic detection of the different colors on the transport member (7) of roving sleeves (11) passing by it and for controlling the transfer processes of the converter (5, 6) depending on the color of the roving sleeves (11) is set up. Spinning plant according to claim 1,
characterized in that
a color sensor (17) is assigned to each converter (5, 6) and controls the reloading processes of the converter to which it is assigned. Spinning plant according to claim 1,
characterized in that
The transport member (7) is assigned at least one color sensor (17) which controls the reloading processes of at least one converter (5) of a roving machine (1, 2) via a central control unit (19 '). Spinning plant according to claim 2 or 3,
characterized in that
the color sensor (17) is set up to distinguish at least n different colors, where n is the number of roving machines (1, 2) connected to the transport member (7). Spinning plant according to claim 2 or 3,
characterized in that
the color sensor (17) is designed to distinguish (n + m) different colors, where n is the number of roving machines (1, 2) connected to the transport member (7) and m is the number of roving qualities that are to be changeable at the same time. Spinning plant according to claim 1, with at least one filling sensor which differentiates between (full) roving bobbins, (empty) roving sleeves and empty hanging holder positions which pass the transport member and controls the reloading processes of at least one converter,
characterized in that
the at least one color sensor (17) is arranged upstream of the filling sensor (12) in the direction of passage of the roving bobbins (10) and roving sleeves (11) and is set up to activate the filling sensor. Spinning plant according to claim 1, with at least one filling sensor which differentiates between (full) roving bobbins, (empty) roving sleeves and empty hanging holder positions which pass the transport member and controls the reloading processes of at least one converter,
characterized in that
the filling sensor (12) precedes the at least one color sensor (17) in the direction of passage of the (full) roving bobbins (10) and (empty) roving sleeves (11) and is set up to activate the color sensor. Spinning plant according to claim 3 and 6 or 7,
characterized in that
a color sensor (17) and a filling sensor (12) are combined to form a sensor unit (23). Method for operating a spinning system according to claim 6,
characterized in that
If a hanging holder position of the transport member (7) approaches one of the converters (5, 6), it is checked beforehand by means of the color sensor (17) arranged upstream in the running direction of the transport member whether the hanging holder position is a (full) roving spool (10) or an (empty) roving sleeve (11) has the color / quality assigned to the converter or its pre-spinning machine (1, 2) and only if this is the case the downstream filling sensor (12) of the converter in question is activated. Method for operating a spinning system according to claim 7,
characterized in that
when a hanging holder position of the transport member (7) approaches one of the converters (5, 6), the filling sensor (12) arranged upstream in the running direction of the transport member checks in advance whether the hanging holder position has an empty roving sleeve (11) and only if this is the case The case is, downstream color sensors (17) are activated.

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