DE4306095A1 - Spinning and winding installation - has electronic data processing to enable first quality spun yarn to be wound with priority - Google Patents

Abstract

Control of a spinning installation which has a ring spinning frame and associated machinery is effected by means of a service robot, which is provided with equipment to store data relative to the package being processed on the frame. This information is utilised in the following stages. The appts. is also claimed. The ring spinning frame (RSM) has a series of working positions (1-20), and each has a supply of rovings with a flow control (LK). The cops are transferred after doffing to the cop trays (PT) by the service robot (BDA), which travels along the spinning positions, keeping a record of the time and relevant details during build of the cop. This information is stored as electronic data in semiconductor devices, which is transferred at the headstock (EK1) into a controller (MS) which also serves as the machine control. The cop trays (PT) on a conveyor (PTFS) then proceed to an initial stage (KB) on the yarn winding machine (SPM), where imperfect cops can be seaparated for further treatment. The first quality yarn is delivered directly into the winding units (SS) with empty tubes being returned to the spinning frame in the enclosed system (PTFS). The yarn may require some treatment at the clearers (GR) as it is wound on the reel. This treatment is also recorded electronically in the module (NW2) which works in conjunction with the micro processor (PLR). The winding machine is controlled from these units through a controller (SSP). The feedback of information enables reels of a first quality yarn without broken ends, thick and thin places etc. to be produced. There is also continuing improvement, as the cause of faults is traced back to previous stages. ADVANTAGE - Faults are related to processing stages, which may have caused the fault, and enable causes to be rectified promptly, which leads to overall quality control, and an improved quality of yarn.

Description

This invention relates to the interaction of ver chained process stages z. B. a ring spinning machine, all if with an operator assigned to this ring spinning machine automatic machines, and one linked to the ring spinning machine Teten Spülmaschine, which in turn with a yarn cleaner is equipped, the ge for a detection of the yarn quality is suitable.

State of the art in spinning

Quality control is an increasingly important task both the short staple and the chemical fiber spinning mill (See, for example, EP 264 72; EP 196 090 and the article "On line quality control for false twist texturing "in Che miefiber / textile industry from October 1991, page 1196).

The material flow tracking and especially the cop tracking quality control or quality control is a Topic that deserves increasing attention in spinning. The patent literature includes the following publications on this topic: CH 410 718; DE-OS 36 03 002; DE-OS 36 28 045; EP 392 249; DE-OS 40 03 428; DE-OS 40 02 500; DE-OS 41 11 488.

The "IT networking" of the spinning mill is another topic that is highly topical today. The following publications can be mentioned: DE-OS 21 25 731; DE-OS 39 06 508; DE-OS 39 24 779; DE-OS 41 12 284; EP 365 901. In addition, important details of such a system are given in PCT Patent Application No. PCT / CH 92/00014 of January 21, 1992.

After all, robotics are used to operate the individual Spinning positions of a spinning machine for about 15 years Technology, for the ring spinning machine in particular in the new impetus can be seen in the last three years. In the sem context are in particular DE-OS 39 09 746 and to mention EP 388 938. Taking advantage of a mobile Automatons for collecting data regarding the states of the operated spinning stations has been planned from the start - see e.g. B. U.S. 4,005,392; U.S. 3,789,595; DE-PS 26 35 714 and JP-Gbm 2-32702.

It is of course also a constant task of both the Kon structureers as well as the spinning master, the plants to op time, normally the individual process stages or work elements are optimized for themselves - see e.g. B. DE-OS 24 54 721; DE-OS 38 06 165 and EP 415 222.

It has been proposed in DE-OS 37 12 654, both data in a spinning machine as well as in a winding machine collect and the facility by linking this data to operate. A special one is provided for this purpose Cop preparation, which also serve as a sorting point should. How to operate the system comes from DE-OS 37 12 654 not clearly revealed, and in that of the same applicant company later filed DE-OS 41 03 428 it is pointed out that the previous proposal is a "relatively large technical effort" has required. This may be due to the fact that the Da ten, according to DE-OS 37 12 654 on the ring spinning machine would not normally collect to operate the machine themselves are required.  

It is also well known in winding, both one Error message sensors as well as a thread length measurement watch, and it has even been suggested the thread length measurement if the length measurement signal is omitted as Use error message (DE-PS 32 40 486).

In the known proposals, the package (cops, spool) considered as a unit. The data collected relate on the package in its entirety, even if the thread was continuously monitored.

The invention relates to a system or to a Part of the plant or be linked from process steps stands. The process stages can be designed that the errors of the upstream stage (s) in one after switched stage must be treated so that they not be forwarded. The Durchflußka capacities of the levels can be coordinated or from each other be dependent, so that an increase in the error rate in Posting into the downstream stage over a certain Limit the ability of this level to the required Flow in the fulfillment of predetermined minimum qua requirements and upheld when supply is interrupted get impaired. Each level can do a lot number of production sites.

In such circumstances, it is beneficial to have information exchange between the stages to get the mutual Ab to enable the states of the linked stages to be tuned. This allows z. B. those sources of error from the previous teten stage (s) are switched off, the said Danger flow capabilities of the downstream stage. The downstream stage can also be on before Post delivering detectable errors in this stage.  

Switching off one source of error can take up to one Stage be postponed where no further adjustment coping with the settings of the downstream stage the fault without impairing the functionality of the plant or part of the plant. In the information is (interchangeable) at each level dependent on the sensors of this level.

The invention is particularly for use in a full automated or low-operator system suitable, e.g. B. in a system that lasts at least two days (Friday evening until Monday) and during the night shift without scheduled human intervention can continue to work. The control egg ner such system is much easier if a Process control system at least for the more complex parts of the plant is provided.

In plants of this type there is normally no assignment of the Production sites upstream of the product positions of a downstream stage determined in advance or be determinable. In normal operation, the pack the upstream stage approximately at random ver via the production sites of the downstream stage Splits.

The problems of controlling a plant of this type are then particularly difficult if three (or more) of these Stages are chained together, as z. B. in the Spinning at the stages of delivery level, spinning stage and Processing stage occurs. When ring spinning z. B. the flyers serve as template suppliers, the ring spinnma machines as a spinning stage and the winding machines as an extension  processing stage. Serve in rotor or nozzle spinning Line as a template supplier and possibly double wire brain machines as a further processing stage.

If there is a product defect in the winder there are at least the following possible reasons:

• 1. Source of error in the winding machine
• 2. Source of error in the ring spinning machine
• 3. Source of error in the flyer
• 4. Source of error in the transport system
• 5. Combination effects ("coincidence").

The causes of the errors can be very different in nature be, for example:

• - Error message (see e.g. DE-OS 39 39 789)
• - wrong material (mix-ups)
• - incorrect settings (e.g. excessive speed)
• - defective area (e.g. wear)
• - defective control automat
• - "Transfer" of errors between production sites (Row thread breaks in the ring spinning machine)
• - environmental influences (general or local, incl. Ver dirt)
• - mechanical or human-related disorders
• - incorrect or missing maintenance
• - inconsistent operating conditions (e.g. start-up or Spinning program switched on)

It has been suggested after making mistakes in the following or a downstream stage have been recognized, the Check the source of supply (e.g. CH 410 718 and DE- OS 40 03 428). As just suggested, it can turn out to be  difficult to pinpoint the source of the error. Until the unique detection of this source can be a big one Quantity of faulty material delivered to the system the one that affects the efficiency of the An location can affect.

It has also been suggested to use second quality coils exclude further processing (e.g. EP 196 090). This probably solves the quality problem, but it also has an impact on the efficiency of the system and leaves the question the further processing or disposal of this "Committee product" open. There may be a lot good yarn is present in these "rejects".

Whether a source of error should be switched off or not depends not only on the source of the error itself - sets that it does not continuously produce rejects, but from the capacity of the next stage the faulty one Process product further. This capacity can be effective be increased if the next level in advance more informat onen than just the fact that errors in a be agreed coil are present. Are of particular importance the questions

• - how many errors are there?
• - what kind of errors are there?
• - where are they in the package?

Whether the upstream stage (s) have all of this information can provide, in turn, depends on their sensors. This level is usually at least include a minimal sensor system, e.g. B. for thread breaks. they but is often not with an equally sophisticated sensor system (see e.g. EP 322 470) how the subsequent stage should be provided, at least if the further processing in the next stage  prevent the forwarding of the error (error off divorce; Troubleshooting).

The sensors of the upstream stage are preferably the Art to add that any errors in the coil (or in Containers) can be located. This is for an elongated Formations (yarn, sliver, roving) a length measurement very well suited.

If the machines of the upstream stages are not ge suitable sensors are provided, can nevertheless z. B. means Automatic machines or data acquisition machines certain Data are collected, and the location in the coil or in Container can be from the fill level of the container or from the structure the coil are defined here.

The occurrence of thread breaks is of particular importance. As from the article "Effects of thread breaks in ring and OE rotor spinning on the yarn properties and the barrel behavior in weaving preparation and weaving "(S. Schlichter and Prof. J. Lünenschloß, Dornbirn man-made fiber conference, Sep tember 1985) is clearly expressed, thread breaks are a Signs of bad yarn. It is not just a question here around the breaking points themselves which are replaced by good splices but rather weak or inferior positions in continuous yarn, which later becomes difficult to process lead. Such yarn can be caused by bad roving caused d. H. the causes are not necessarily in the spinning machine, although the thread breaks in the spinning machine seem to arise.

It is the aim of this invention, the collaboration between the mentioned machines of a modern spinning mill develop.  

Aspects of the Invention

In one aspect, the invention sees in particular a system before who fed a spinning machine with one of these machines arranged automatic controls and one with the spinning machine linked processing machine includes as well as with tel to check the quality of the further processing machine and for identification purposes the spinning station that produces a specific package has asked, characterized in that the said Mit tel indirect, e.g. B. on the spinning machine control, or immediately send a control command to the operator controls A specific spinning station can be shut down and the Operating machine with means for executing this command is provided.

In a plant according to this first aspect of the invention each spinning station with a respective device for the sub bind the material supply to this spinning station and the loading service machine with means for operating this device be provided. A suitable device is in the EP 388 938. There is also the operation of this Finding device through an automatic machine. The Operator machine can be used to execute others Measures to shut down a spinning station are designed, e.g. B. for switching off one of these spinning station individually arranged drive motor.

This first aspect of the invention is of course special then advantageous if the further processing machine with Means for testing a yarn in one way are seen that do not perform in the spinning machine itself is bar, e.g. B. for testing a ring spun yarn on the  Presence of thick / thin places, number fluctuations, pe periodic unevenness, hairiness, etc.

In a further aspect, the invention is concerned in particular special with a system that a spinning machine with a this spinning machine associated automatic controls and a further processing linked with the spinning machine includes machine, the automatic control device with means for Collect data regarding the states of the spinning stations of the Spinning machine is provided. Such a system is in DE-OS 39 09 746. The facility is characterized by that means are present, the state data of the machines assign time and the resulting data to the Forward processing machine, so that a Control of the finishing machine depending on the treatment the individual from the spinning machine to this Processing machine delivered to the pack at adapts the state data generated to form this pack.

The machine time is due to the packing cycle Spinning machine determined. This cycle includes e.g. B. for a Ring spinning machine a start-up phase, a phase of normal Spinning, a final phase and a doff phase. The The exact sequence characteristics of each such phase can be assigned to the Spinning ratios will be adjusted, but will definitely at least in the control of the spinning machine at all times be ascertainable (e.g. by reading from a memory).

The machine time can be determined indirectly via the time be provided, whereby means must be available to a given time of a determinable pack formation cycle assign. This can be done in that at the end The pack formation cycle corresponds to that of a specific pack speaking condition data of this pack or a carrier  for the pack can be assigned immediately. The means of Execution of this step is known and will be followed in this Description not dealt with. You can e.g. B. from DE-OS 36 03 002 or 36 28 045. In an alterna The respective status data can be used indirectly a suitable information management system that corresponds to corresponding pack. A suitable system is described in DE-OS 40 24 307.

The above-mentioned collection of the condition data of packs is referred to below as cop tracking. The beginning CH 410 718 mentioned contains statements about these cops persecution. The present invention also includes one of the like cop tracking, which means a functional Combination with the steps described here and with the Head tracking belongs to the scope of the invention. In the Cop tracking can either be the sleeves of the cops or Carrier for the sleeves, e.g. B. so-called peg trays coded will. On the other hand, the cops from the ring spinning seem in the order of the spindles, and afterwards z. B. on special peg trays with integrated half conductor memory (e.g. according to DE-OS 40 24 202) are implemented, which only circulate in the winding machine, so that on this Way the assignment of the individual heads to the spindles or Spinning of the ring spinning machine takes place. Furthermore can on the origin of a single spider or one individual pack without brands by replicating them distance covered closed by means of a computer be, with individual sensors at certain points of the path must be present in the pack. A suitable system is in PCT patent application WO 92/02669 been shown. The controls of the individual machines For this purpose, components must be saved via the following stored data:

• 1. The operator control generates a status image of he was in charge of spinning positions, the machine time being Reference for the cop assembly is saved. These Data is continuously updated by the operator during operation automatic machines to the spinning machine.
• 2. The spinning machine provides a status image of all Spinning positions of the machine, with experience data as in stored in a logbook, for example the Time as reference for the build of the cop in the individual Incidents. This data is sent to the Transfer winder. The transfer can be direct or via a process control computer before the start of the cop handover be controlled. A process control computer serves as data interface in case of different networks in the spinning plant.
• 3. The winding machine maintains a list of all adopted Kopse with the information about the time of the thread breaks.

The adjustment of the treatment of these packs depending of their respective status data depends on the controller the winder. The following are examples of this listed:

• 1. Elimination of unsuitable for further processing Packs before they go to the jobs of further processing can strain the working machine, e.g. B. at the entrance of Cop processing of the winding machine in the machine network Ring spinning machine - winding machine; see z. B. the DE-OS 33 37 348.
• 2. Allocation of the delivered packs to predetermined items jobs of the processing machine in  Dependence on the respective assigned to the pack State data e.g. B. such that at predetermined Ar jobs of the winding machine in the ring spinning network schine - winding machine only cops without thread breaks too Cross-wound bobbins or cones are rewound so that on these Jobs producing first-class packs is guaranteed.
• 3. Preferred or adapted processing of packs, which assigned to the predetermined categories of status data were arranged, e.g. B. preferred processing of cops without thread breaks in the bobbin preparation of a bobbin machine and / or a predetermined preparatory operation for cops with broken threads or the diversion of such Kopse to a designated preparation point.

To assign the status data to the machine time, the Automatic control device comprise at least one data memory, the at any time (during the operation of a machine) "Image" of the states of the spinning assigned to this machine places contains, and is provided with a clock, which be correlated with a clock of the spinning machine control can. The time of a detected change of state can then in a predetermined ratio to the change in state be saved so that the time of the change, the new state and a spinning station identification too Composite data are linked. There are also funds available to send status data to a user at least occasionally to speak speaking data storage of the spinning machine. At the latest after this transfer, the assignment of the Status data at machine time instead. The assignment of a "Data packets" for a corresponding package are then made based on the data stored in the spinning machine.  

The exchange of data between the spinning machine and the Winding machine can directly (via a suitable signal conductor connection) between these machines. In the be preferred arrangement, the data exchange is not direct, but by means of a process control system, which according to Swiss patent application No. PCT / CH 92/00014 dated 21 January 1992 can be formed. The full content of the ge PCT application is hereby incorporated in this application closed.

The invention is not based on the combination of the above Aspects limited, although this combination the before execution and the basis of the following based on the Drawings example to be presented. But where one System for the exchange of data, but not for the Forwarding of control commands between the machines is placed, it would be possible e.g. B. a suitable instruction to operation via the user interface of the applicable machine. The instruction could e.g. B. read: "Spinning station no. xyz shut down". A suitable one System is shown in PCT patent application WO 91/16481. The full content of the latter PCT application is hereby in included in this application.

Examples of plants according to this invention will follow based on the figures of the drawings. It shows:

Fig. 1 (schematically) a ring spinning machine and a winder which have been linked to form a "composite machine",

Fig. 2 (schematically) the concatenated stages flyer winder Ring spinning a spinning mill, along with the requisite transport systems and car operation maten,

Fig. 3 (schematically) a spinning station of a ring spinning machine,

Fig. 4 (schematically) a winding station of a winding machine,

Fig. 5 A, B and C to an empty tube (schematically) a flyer bobbin, a head, and a cross-wound bobbin, according to various phases during removal of a full package,

Fig. 6 shows a further representation of a cop for explaining various phases of the package structure in the spinning,

Fig. 7 and Fig. 8 (schematically) the drive programs a Ringspinnma machine,

Fig. 9 (schematically) a top view of a winding machine.

Fig. 1 shows schematically a ring spinning machine RSM and a winding machine SPM, the bil machine group by a connection in the form of a conveyor system with peg trays PTFS.

The ring spinning machine comprises two rows of spindles, one row on the long side of the machine. The figure shows ten spindles 1 to 10 or 11 to 20 per row of spindles. A practical version includes approximately five hundred spindles per row of spindles.

Each spindle is assigned a respective supply spool, which feeds roving into this spinning position comprising this spindle via a sliver clamp. The match clip is formed according to FIGS . 15 to 19 of EP 388 938. The clamping head normally releases the sliver run, but can be switched to a clamping position by a control robot BR according to DE-OS 39 09 746 in order to shut down the spinning position by cutting off the supply of material from the supply spool.

The machine has two end heads, one of which is the EK1 end head Machine control MS contains. This control works over the drive system (not shown) of the machine to the Ma continuously, while in operation, according to to drive a machine cycle (pack formation cycle). Each cycle is completed by a doff phase, whereby the cops formed during this cycle by a suitable nete Doffvorrichtung (not shown) from the respective Spindles removed and replaced with new sleeves. Wuh Every spindle comes to a standstill during the doffing.

After doffing, the machine will run at its operating speed accelerated, the course of this (ramp-up) Phase can be adjusted to mi nim or to form the base of the cop. After this After the start-up phase, the machine runs after one given spinning program (in the controller) to a cop to form a predetermined size. The operating speed can be controlled to determine the number of thread breaks (e.g. per hour) at an (empirically determined) level hold or a yarn property that only on the spool machine can be checked, e.g. B. the hairiness, within limits to keep.  

When the cop is almost full, the machine starts one Final phase (spinning) where the machine for the subsequent doff phase is prepared. This cycle will repeated throughout the operating time of the machine and de finishes "the machine time". The "machine time" be the coping process is correct - for every machine time point in the cycle there is a corresponding point in the Coping characteristics when you have an event at the Kopsbildung (e.g. a thread break) compared to the Kopsbil manure characteristics, you can do this using the Machine time.

The cops removed from the spindles are each at one peg Tray e.g. B. according to EP 450 661, each page Tray PT a sliding washer and one that holds the cop Includes spigot. The peg trays, including cops, are then through a suitable PTFS conveyor system gradually or slowly continuously on the machine facing the winding machine end where the peg trays move out of the part in turn of the conveyor system PTFS on the ring spinning machine sluices and into the part of the conveyor system on the spool seem to be smuggled in.

The peg trays with their respective heads are then attached to one Kops preparation center KB forwarded to where on the Rewinding can be prepared in the winding units SS. The figure shows only three such winding units. In every winding unit sequentially a plurality of such cops to a cheese rewound. The function of the winding machine and its control are z. B. in US 4,984,749, DE-OS 39 28 831 and DE- OS 40 17 303 described. Forwarding the peg trays from preparation of the cop to one of the winding units is carried out by the Conveyor system depending on a suitable control (not shown) of the winding machine. The  Empty peg trays, each with a sleeve, are then removed from the Winding points via the conveyor system to the ring spinning machine transported back. An alternative system, according to which the cops of Peg trays of the ring spinning machine on peg trays of the spool be relocated is z. B. in DE-OS 40 03 428 and in DE-OS 40 08 990 has been shown.

The processing capacity of the winding units must be ge be chosen that within a machine cycle the Ring spinning machine (i.e. while the spinning machine is a new one Produces headless) the winding machine all cops of the previous completed the cycle. The adjustment of the rewind ring spinning capacity represents an important factor decision when planning the system. It becomes a cost rarely establish a large winding capacity available stand. The winding machine is opposite the ring spinning machine relatively expensive, so that they are out as continuously as possible should be burdened. The efficiency of the winding machine is therefore an essential feature of the efficiency of the system. It is accordingly the constant goal of machine builders, the To keep efficiency at this level high or to increase it (see e.g. DE-OS 38 06 165; EP 406 451 and EP 427 990).

During the rewinding the yarn is "cleaned", before certain yarn defects by a yarn cleaning GR out be cut. Thereby data about the quality of the respective cops and collected by a suitable "cops Followed "back to the spindle of the ring spinning machine will. The details of such head tracking systems are not the subject of this invention. Examples of this are in the to find already mentioned prior art.

The ring spinning machine is equipped with a BDA operating machine (e.g. a "ROBOfil" registered trade mark). The  Automatic BDA in the figure is schematic in a parking position tion shown at the end of the machine, where he z. B. at the end of Doff phase of the spinning machine is waiting. During normal The spinning machine patrols the spinning machine machine for operating operations after its programming to execute. The preferred variant of the machine works according to a method described in DE-OS 39 09 746 is that the machine is not just about operating operations leads, but also information (data) regarding the To of the spinning positions. At the end of each "round" (when he returns to the parking position) the Be transmits service machine transfers its newly collected data to the rings pin machine control, which is shown in the figure by the arrow U is indicated.

Referring to FIG. 1, a control SSP can be connected to the winding machine SPM via a line VL to the network NW2. Another data connection from the coil controller to the process control computer can also be implemented in the form of a further network. The control SSP of the winding machine SPM contributes the data to the so-called cop tracking. This control can contain the twine cleaner control integrated.

Every machine group (the ring spinning machine RSM with your BDA operating machine and the SPM winding machine with their Garnreiniger GR) each have an "information mass" that should be replaced to optimize the network. About their automatic control BDA knows z. B. the ring spider machine, how many thread breaks in a particular cop available. This information is for control of the winding machine of great importance, as below in the description of the overall system should be presented. The winding machine SPM (or its yarn cleaner GR) can over  the cop tracking find that a particular spindle the ring spinning machine always produces bad yarn not clearly determined by the control automat alone is adjustable.

The information (data) could be exchanged directly between the main machines. In the preferred embodiment ( Fig. 1), the exchange is accomplished indirectly via a process control computer PLR. The computer PLR is connected by a first network NW1 to the ring spinning machine RSM (among others) and via a second network NW2 to the winding machine SPM (among others). The process control system is preferably formed according to patent application PCT / CH 92/00014 dated January 21, 1992.

The system is preferably for bidirectional communication designed between the computer and the machine, with tax commands from the computer to the machine controls can be. A suitable signal can therefore be obtained from the rech to the BDA operating machine (e.g. via the machines control MS) go so that the machine one from the computer specified spinning position by pressing the corresponding one Fuse clamp stops and thereby the production of an un usable yarn (with the corresponding loss of material) prevents.

To optimize the control of the winding machine, however, more data is required than was mentioned in DE-OS 39 09 746. It is advantageous to determine not only how many thread breaks are present in a particular cop, but also when these thread breaks occurred in the cop formation cycle. Since this information is available at least in the combination of ring spinning machine / automatic control unit, it is possible to prepare it. To do this, however, it is necessary to assign two additional "data" to each "event" (thread break), namely the time of this event (compared to the machine cycle) and the spindle number (or other identifications). In the system according to FIG. 1, this is achieved in that both the machine and the spinning machine comprise three memories I, II, III or memory parts I, II, III, where the respective Da time, spindle number and state of the spindle can be filed. By correlating the times, the time of an event stored in the machine can be determined in relation to the machine time.

The events detected by the machine when patrolling are transferred to the machine at the end of the round. Min at least in the machine, possibly also in the machine the data are combined into packets, so that on End of a machine cycle for each spindle package is available, which the from the automatic control for events detected by this cop. This package can directly (e.g. according to DE-OS 36 28 045) the respective cop can be assigned, or this can be done indirectly via the Process control computer PLR take place. The machine and the machine then collect data and form data packets for the next one Headless.

The data packets are thus used to control the winding machine delivered. The evaluation or utilization of these data packets in the winder are not here in every detail described, but some options are available under the Description of an overall system indicated.

Fig. 1 shows a single composite machines. The plant will include some ring spinning machines and winding machines, which are managed by a common process control computer. An example of such a system is now shown as a total system.

1. General description of the system

The system includes:

• - A flyer level consisting of
• - one or more flyers, which ones
• - Create roving
• - with a control system compatible user interface are equipped
• - connected to the host computer via a data network are
• - Stop automatically in the event of roving breakage and trigger the alarm sen
• - for normal operations on the roving side do not need human intervention.
• - A flyer spool transport system consisting of
• - one or more bobbin transfer stations, according to the number of flyers in the system
• - a path or rail system with a number Transport vehicles
• - One or more coil transfer stations, ent according to the number of ring spinning machines in the system
• - a case cleaning station
• - One or more sleeve transfer stations, ent based on the number of flyers in the system
• - a central control, which
• - with a control system compatible user interface is equipped  
• - connected to the host computer via a data network is
• - In the event of malfunctions, the operational sequence automatically interrupts and triggers alarm
• - no human for normal operations Intervention requires.
• - A ring spinning stage consisting of
• - one or more ring spinning machines, which
• - Create yarn
• - with a control system compatible user interface is equipped
• - connected to the host computer via a data network are
• - stop automatically in the event of faults and trigger an alarm
• - Doffing and handing over the cops to the Complete the winding machine fully automatically
• - The takeover and the reflux of the sleeves cope automatically
• - Equipped with one or more operating robots which are
• - monitor the spinning positions
• - The operating status of the spinning stations continuously to the Control of the ring spinning machine or directly if necessary report the host computer
• - Fix thread breaks
• - Spinning positions with faults automatically by bet Stop the roving clamp
• - Spinning positions on request by actuation a roving clamp and stop for the operator mark one
• - Stop automatically in the event of faults and trigger the alarm sen.  
• - a winder stage consisting of
• - one or more winding machines, which
• - Wind around the yarn
• - The individual cops, which from the ring spinning machine were delivered with regard to origin to the Spinning station traced (cop tracking)
• - with a control system compatible user interface are equipped
• - connected to the host computer via a data network are
• - stop automatically in the event of faults and trigger an alarm
• - equipped with a fully automatic yarn splicer are
• - the spool change and the return of the cops to the Complete the spinning machine fully automatically
• - have a thread cleaner at each winding unit, Which
• - monitor the winding units
• - the operating status of the winding unit to the Thread cleaner control or directly to the Report winding machine control
• - If there are any imperfections in the yarn, rewind by cutting interrupt
• - winding units with faults automatically by how Stop repeated actuation of the thread cutter and mark for the operator
• - with its own yarn cleaner control in Ver bond, which in turn
• - ver with the host computer via a data network is bound
• - automatically triggers an alarm in the event of faults
• - the quality data of the individual yarn sensors evaluates, classifies and stores.  
• - A host computer consisting of
• - a central unit
• - one or more data networks to connect with the flyers, the spool transport system, the ring spinnma machines, possibly the operating robots, the winding machines, if necessary the thread cleaner control
• - a (control system compatible) user interface
• - a printer
• - a central mass storage for data
• - If necessary, a data line for the exchange of informa tion with a higher-level control system
• - an alarm device for the operating personnel.

A. Stopping spinning stations with quality defects by means of the automatic controls

In the interaction of the elements

• - Quality recording on the cop with yarn cleaner (be known) and / or winder (EP 0 373 324)
• - Kops tracking on spinning station (DE 36 03 002 and DE 36 28 045)
• - Information network including ring spinning machine, Operating robot, winding machine and yarn cleaner
• - ROBOfil function matchlock
  become spinning positions with quality defects, for example
• - frequent yarn errors, number fluctuation, high Unevenness, weaknesses due to insufficient Rotation, as a result
• - defective drafting system, damaged ring / runner, defective spindle, defective roving bobbin  not only recognized, but also avoided by
• - the spinning station in question is decommissioned,
• - Marks the spinning position for the operator and
• - The flow of the roving is interrupted and thus
• - further losses from production of committee ver be avoided.

B. Elimination of cops with frequent defects due to the information provided by ROBOfil at Handover to the cop preparation description

In the interaction of the elements

• - Monitoring of the individual spindles by ROBOfil, with Detection of thread breaks and automatic and ma actual preparation processes
• - Kops tracking on spinning station (DE 36 03 002 and DE 36 28 45)
• - Information network including ring spinning machine, Operating robot, winding machine and yarn cleaner
• - Elimination of cops in the entrance of the cop preparation (DE 33 37 348), preferably with classified and special storage of the excreted cops for later examination in the laboratory
  the efficiency of the winding machine is increased by
• - Processing completely unusable cops from the outset is avoided.

C. Separate treatment of cops with specific defects based on the information provided by ROBOfil during further processing on the winding machine.

In the interaction of functions

• - Monitoring of the individual spindles by ROBOfil, with Detection of thread breaks and automatic and ma actual preparation processes
• - Kops tracking on spinning station (DE 36 03 002 and DE 36 28 045)
• - Information network with inclusion of ring spinning machine, operating robot, winding machine and yarn cleaner
  the efficiency of the winding machine is increased by
• - Cops without thread break preferred in cop preparation to be edited
• - Copies with thread breakage possibly saved and ver pushed processed, for example after Processing the thread-free cops and before the next Most doffing process, which is no longer for processing passing cops are excreted
• - Particularly effective for cops with broken threads drive used in cop preparation for example a special preparation station.

The yarn quality is further increased by cops without Fa rewound the break at specially designated winding points high quality bobbins with a Mi to obtain the minimum number of splices and "almost broken threads" ten (possibly DE 36 28 045, DE 36 03 002, DE 33 48 022).  

D. Classified and separate storage of the excreted cops for later testing in the laboratory in conjunction with Indication of the producing spinning station

In the interaction of functions

• - Elimination of defective cops in the head transport of the Winding machine, at least before returning the tube to the Spinning machine, with storage of the excreted cops individually or in groups in subjects
• - Kops tracking on spinning station (DE 36 03 002 and DE 36 28 045)
• - Information network with inclusion of ring spinning machine, operating robot, winding machine and yarn cleaner
  the determination and correction of weak points in the entire ring spinning system is facilitated and improved by
• - the appearance of the defective Kopses Rück conclude on the place of origin and the method of origin of the error allowed, for example defective Function of the winding unit, the cop preparation, the Spinning station, the operating robot, the spinning station of the Flyers
• - The function and setting of the thread cleaner based on of particularly interesting patterns in the laboratory in one Follow-up inspection can be checked.

IT aspects

A practical implementation of the spinning area from flyer to winder for an automated system is shown in FIG. 2, but still schematically, in order to represent the IT aspects of the system. The system section shown includes (in the order of the process stages, ie the "chaining" of the machines):

• a) a template delivery stage, represented here by flyer stage 300 ,
• b) a final spinning stage 320 , in this case formed by ring spinning machines,
• c) a roving transport system 310 for carrying flyer bobbins from flyer stage 300 to final spinning stage 320 and empty tubes from final spinning stage 320 back to flyer stage 300 , and
• d) a further processing stage, here the rewinding stage 330 , in order to convert the cops formed on the ring spinning machines into larger (cylindrical or conical) packages (cross-wound).

Each processing stage 300 , 320 , 330 comprises a plurality of main work units (machines), each of which is provided with its own control. This control is not shown in FIG. 2, but is explained in more detail below in connection with FIG. 3. Attached to the respective machine control system are robotics units (operating machines) that are assigned to this machine directly. In Fig. 2, a separate doffer is provided for each flyer of level 300 - the "flyer open" function is indicated in Fig. 2 with the right corner 302 . One possible implementation is e.g. B. in EP 360 149 or in DE-OS 37 02 265 shown.

In FIG. 2, an automatic control unit per row of spinning stations for operating the spinning stations and a push-on operation for the roving feed are also provided for each ring spinning machine of stage 320 . The function "spinning station operation" is indicated with the boxes 322 , 324 (one box per row of spinning stations) and the function "roving feed" with the rectangle 326 . One possible implementation is e.g. B. in EP 419 968 or PCT patent application PCT / CH 91/00225 from 11/02/1991.

The roving transport system 310 is also provided with its own control system, which will not be explained in more detail here. System 310 includes a roving bobbin cleaning unit before being returned to flyer stage 300 . In Fig. 2 the function "roving bobbin cleaner" is indicated by the rectangle 312 . A possible embodiment of this plant part is shown in EP-43 12 68 (and partly in EP 392 482).

The ring spinning machines of stage 320 and winding machines of stage 330 together form a "machine network", which ensures that the cops are transported to the winding machines. This assembly is controlled from the winder.

A network 350 is provided, whereby all machines of stages 300 , 320 , 330 and the system 310 for signal exchange (data transmission) are connected to a process control computer 340 . The computer 340 directly operates an alarm system 342 and an operation 344 z. B. in a control center or in a master's office.

A very important function of the rewinding of ring spun yarn is the so-called yarn cleaning, which is indicated by the rectangle 360 . The yarn cleaner is connected to the process control computer 340 via the network 350 . Yarn defects are eliminated by this device and at the same time information (data) is obtained which enables conclusions to be drawn about the preceding process stages. The thread cleaning function is carried out on the winding machine.

FIGS. 3 and 4 show more detailed but somewhat more schematic diagrams of a ring spinning machine in the stage 320 and a winding machine 321 (Fig. 3) 331 (Fig. 4) of the stage 330.

The control of the machine 321 is indicated schematically by 323 and the control of the machine 331 by 333 . For each machine 321 , 331 , a single working position 330 ( FIG. 3), 380 ( FIG. 4) is indicated schematically. In the case of the ring spinning machine 321, the work station 370 comprises a suspension (not shown) in the attachment (not shown) for a flyer spool 371 , which supplies roving 372 to a drafting system 373 . The fibers emerging from the drafting system 373 are spun into a yarn 374 , which is wound up on a tube 375 to form a cop 376 . The sleeve 375 is supported by a spin del (not shown) which is set in rotation about its own longitudinal axis by a drive motor 373 (single spindle drive) assigned to this spindle.

The work station 380 of the winding machine includes a feed (not shown) for individual head carriers 381 (eg so-called "peg trays"), each of which carries a cop 382 . The yarn 383 of the cop is unwound and delivered to a thread changer 385 via a splicer 384 . A bobbin holder (not shown) carries a sleeve (not shown) as the core of a packing 386 , which is formed by the rotation of the sleeve about its own (horizontal) axis with an axial movement of the thread generated by the oscillation.

It is assumed that each work station 370 , 380 is provided with its own sensors. In the case of the ring spinning machine, this consists of a simple sensor 378 per spinning station in order to determine whether the spinning stations (of the spindle motors 377 ) are in operation or not. The winding unit 380 can be provided with a corresponding sensor 387 . However, the winding unit 380 is additionally provided with a yarn testing device 361 which forms an element of the yarn cleaner 360 ( FIG. 2). The yarn testing device comprises a yarn sensor (not indicated separately), which monitors the predetermined quality parameters of the yarn and delivers corresponding signals (data) to a data acquisition unit 362 of the machine 331 , which summarizes the data for all winding units of this machine. The data unit 362 represents a further element of the yarn cleaner 360. The controls 323 , 333 and the data unit 362 are connected to the control computer 340 ( FIG. 2) via lines 351 , 352 and 353 of the network 350 ( FIG. 2). The data unit 362 also exchanges signals with the controller 333 of the winding machine. The automatic controls can also be provided with sensors, e.g. B. as shown in our U.S. Patent 4,944,033.

According to PCT application no. PCT / CH 92/00014, the system is designed in such a way that the computer 340 "raw data" of the sensors 378 , 387 , 361 are supplied, although the individual controls 323 , 333 , 362 are in the absence of one Control command from the control computer 340 work independently of this computer based on the output signals of the sensors 378 , 387 , 361 . This means that the raw data of the sensors are not combined by the controls 323 , 333 and 362 to "reports", which reduce the information content of the sensor signals by "concentration" and which are forwarded to the host computer. Instead, they are passed on to the master computer (at least on request from the master computer 340 ) as quality or status signals unchanged in terms of content. "Raw data" (in terms of control) are basically "actual values" of the sensors or signals derived from them, in any case data originating from the sensors.

Each machine 321 , 331 is also provided with an "operating surface" 325 or 335 , which is connected to the respective controller 323 or 333 and enables human-machine (or even robot-machine) communication. The "control surface" can also be referred to as "control panel", or "control panel" or "control console". An example of such a user interface is shown in DE-OS 37 34 277, but not for a ring spinning machine ne, but for a stretch. The principle is the same for all such controls. Further examples can be found in the article "New microcomputers for the textile industry, by F. Hösel in Melliand textile reports from September 1991 (ITMA edition).

According to the invention according to PCT patent application No. WO / 91/16481, the system is programmed and designed in such a way that the control computer 340 can provide operating support via the user interface 325 or 335 of the respective machine, ie the control computer can carry out control commands via the Send network 350 and the machine controls can receive and follow such control commands, so that the state of the user interface is determined by the control computer 340 above the respective control.

Fig. 2 is greatly simplified. A realistic description of the complexity of such a system is beyond the scope of a patent specification. However, part of the problem arises from the article "Shaping what is feasible - increasing the flexibility and economy of a cotton mill" by Leopold Schoeller jr. in Melliand textile reports, 2/1992, page 126 ff.

Importance of machine types

If a machine (or a machine assigned to it) in is able to control your own product and mistakes to fix (z. B. according to DE-OS 40 15 636, nozzle spinning) this invention is not applicable. The invention comes to where a downstream stage is the task of Collection of errors fulfilled (see PCT patent application WO 92/00409 - the function of the "separation point"). According to one aspect this invention, the "interface function" is thereby complements that information in the upstream stage can be obtained to adapt or relieve the "Separation point" can be used to reduce the efficiency to increase the system or part of the system. It will now be the Importance of individual elements of the system for this invention explained in more detail using examples.

The invention brings the most advantages where to be controlled Machines each have a large number of production locations. This is both a problem and an opportunity. Egg on the other hand, it is then difficult to locate the source of the error. On the other hand, it is possible to find a source of error once it has been located turn off without reducing the productivity of the plant as a whole significantly affect.

The invention also wins depending on the problems recovery of the incorrectly processed material Importance. If a belt breaks at the exit of a line, the Can be replaced immediately in the tape storage and the partially filled jug on the fiber recovery system part will be delivered. The same treatment of one The right amount of yarn is undesirable.  

The thread break number

As already mentioned, the thread break number represents an important in diz for the yarn quality. In an automated system the determination of the number of thread breaks is not a problem for either the winding machine still for the ring spinning machine. Where the Spinning positions of the ring spinning machine with no own sensors (e.g. according to EP 436 204; EP 432 401 or DE-OS 40 11 944) ver the machine can be seen with a suitable drive The data acquisition device can be provided mentioned operating machines only to be understood as examples are.

Communication ability is often required for modern spinning machines nowadays also ensures z. B. according to DE-OS 40 08 794 or PCT / CH 92/00014. But this is also not essential, since that direct recording of the data on the package itself, e.g. B. according to DE-OS 41 12 073 or DE-OS 40 24 202 known.

Importance of the transport system

Before changing the spool, a flyer or a ring spinning machine must be seem to be brought to a standstill (and then open again the operating speed is ramped up), d. H. of the coils change represents an interruption in production speaking as short as possible and this means tet that the coils can not be treated individually.

In modern machines, all are Machine cycle produced packs at the same time if possible doped and replaced by empty pods. Single coils only can be faulty. The transport system is therefore in front preferably capable of single coils or a small spu discard len group. This requires a transportation system  in combination with a special (preferably own) Control ("intelligence"). Such systems have been in place for some Years available (see e.g. the article "Computer-aided Transport systems in textile production "in Melliand Tex tilberichte, 7/1985, page 499 ff). Such systems have today a high level of development with peg trays for head transport veau reached, the special Be handling of individual or a small number of coils is quite possible (see e.g. EP 431 268).

On the basis of the number of thread breaks, it is therefore possible to find faulty ones Exclude bobbins from further processing and thereby to relieve the downstream stages. But it is if possible, such coils on specially provided To forward processing stations or machines, resulting in a clear distinction between products first and second quality leads. This is discussed in more detail below Connection with the winding machine (as an example) explained.

Meaning of the cause of the error

The various causes of errors previously mentioned lead to very different effects in terms of product quality. A defective spinning station continuously produces bad yarn - it should be turned off. Maloperation on a normal working spinning station may result in a single Thread break that occurs at any phase of the cop assembly men can.

An incorrect setting in the run-up curve of the machine can be too an accumulation of thread breaks in the so-called cop base lead where thread breaks are known because of the un steady operating conditions are to be expected (see e.g. in Article "Thread breakage detection, minimization and correction  Ring spinning machines "in Melliand textile reports, 6/1984, page 379ff). But there is a lot of good yarn in the same bobbin act.

The effects of such incidents on the formation of the cops have already been explained in EP 360 287 (in particular FIGS. 3 to 6) and it is provided that preparation for cop defects in the preparation of the cops is ascertained, so that the subsequent cop treatment can be adapted accordingly. This invention now provides the possibility of determining the effects of errors before delivery to the cop preparation (and thereby also relieving the cop preparation) so that appropriate measures can be taken. To do this, it is necessary to determine where the error or errors occurred in the structure of a given cop.

There are now various options as examples of Declared means for finding "defects" in can serve a pack, d. H. to determine where in the Package structure there is a fault (fault location). It is na naturally assumed that the necessary sensors are available is to recognize the error itself.

The fault location

A length measurement is important for fault location, if not indispensable aid. The length measurement is in Rotor spinning and nozzle spinning, as in the winder, yes well-known prior art - see e.g. B. EP 157 134. It has also been proposed to measure length in the To use ring spinning (e.g. EP 386 519 - Flyer; US 4 665 686 - ring spinning machine).  

Various error signals have also been suggested to connect with each other to thereby bring the whole increase the information content of these signals (see e.g. EP 156 153).

It is not known to us that length measurement and Error signals together to locate the error in one Pack (or container, e.g. a jug or a wrap) ver were tied, although the technical means for this purpose have been available for a long time.

The usability of such information for further processing processing is z. B. can be seen from DE-OS 39 42 304 or can be derived from this. Such information can be also use "downstream" from a "separation point", e.g. B. in a machine network of a cross-wound spinning machine machine with a double wire twisting machine, as shown in DE OS 38 02 900 has been shown.

In order to explain the problem of fault location in different circumstances in more detail, the various types of pack (and which correspond to the pack build-up cycles) are briefly explained below with reference to FIG. 5. However, it is pointed out that these explanations are well known to the person skilled in the art from the textbooks of spinning technology.

Pack forms

FIG. 5 shows a flyer spool in FIG. 5A, a cop in FIG. 5B and a cross-wound spool in FIG. 5C. In the schematic representations of FIGS . 5A (i), 5B (i) and 5C (i) the pack is always full, in FIGS . 5A (ii), 5B (ii) and 5C (i) half empty ( half deducted) and in FIGS. 5A (iii), 5B (iii) and 5C (iii) empty, ie only the packing core (or carrier) remains in the form of a so-called sleeve. These packs each have their own structure, whereby basically two withdrawal processes can be recognized. In one case the length of the package changes when it is pulled off (cops), in the other case the diameter (flyer or cross-wound bobbin).

The packaging on the flyer must be from the beginning to the end be worked through. The omission of a section is not possible due to the drive system. Because the production are not driven individually, is used today Matching the whole machine turned off to start to enable the affected body. Then the Packing cycle continues from the point where it was previously was broken.

A length measurement together with values in the setting program are available (e.g. the total length of the flyer lenlunte), clearly indicate the fault location. The same However, information could come directly from the packaging program if the different steps of this program are identifiable (can be read nen).

The same remarks apply essentially to the Bil of the cheese, in which case the most varied Drive systems are used. Another parameter which is occasionally used in connection with the package is the pack diameter (see e.g. EP 78 979), and this can also be used for fault location. this applies in principle also for the flyer spool.

The cop is a somewhat more difficult case. As can be seen from EP 360 287, an entire section can be missing in the cop - and the effect on the cop shape depends on which section was left out. The cop shape is therefore explained in more detail in FIG. 6.

In Fig. 6, the sleeve with 50 and the package with 52 is interpreted. The package consists of a base 54 , a cylindrical part 56 (which however consists of individual conical layers) and a conical extension 58 . The base 54 is formed first (in normal construction) and contains the yarn that was produced during the run-up curve. The approach 58 is formed during the final phase of the formation cycle and contains the yarn that was spun during the spinning. When pulling off, you start with the free yarn end on neck 58 . The cylindrical head part 56 contains most of the amount of yarn in the cop, namely the yarn which was produced under steady operating conditions.

This waits when the thread breaks in a single spinning station Education program does not take this place, but progresses for the other spinning stations still running normally. If so there is only one break in the course of the formation of the cop, this Thread breakage is fixed and afterwards the bobbin formation until Continuation continues uninterruptedly, gives the length measurement the exact location of the fault opposite the end of the cop lies. In the event of a second thread break, or if according to a company denbruch the formation of the cops before the end of the education cycle not resuming, can be deceptive results arise.

Such results can be avoided by taking into account the "machine driving programs". Such programs are stored in the controls of modern machines and define the prevailing operating conditions at every point in the machine cycle. Such driving programs for a ring spinning machine have been shown schematically in FIGS. 7 and 8. The time t is entered on the horizontal axis, "T" representing the duration of a machine cycle from the beginning of the formation of the cop to the end. The spindle speed is determined according to the characteristic n ( FIG. 7) and the current ring bench position (compared to an initial position) according to the movement sequence h. The corresponding speed of the delivery cylinder from the drafting system follows the curve k ( FIG. 8), which results in a delivery l ( FIG. 8).

By taking this saved program data into account it is possible to clearly locate the fault location in the cop.

Importance of finishing machines

Obviously, there is no point in providing information to the finishing machines that they cannot use. The technical means for using the information he mentioned are available in modern winding machines. To illustrate this, the essential elements of a winding machine for processing cops carried on peg trays are shown in FIG. 9.

The machine is indicated at 70 in FIG. 9. It includes winding units, of which only three locations 72 , 74 , 76 are indicated in Fig. 9; In a practical version, there are usually twenty or more winding units.

The cop preparation is indicated at 78 . Peg trays (not shown) with cops are fed into the cop preparation 78 via a feed path 80 and leave the cop preparation in the direction of the winding stations on the transport path 82 . They leave the winding units on the transport path 84 and are either delivered to the cop preparation 78 or to a discharge path 86 (if fully unwound). In this case, it is assumed that the winding machine 70 is not (as in FIG. 1) connected to a single ring spinning machine, but to a plurality of ring spinning machines (flexible link - for example according to EP 344 597). An example of the arrangement can be found in DE-OS 32 35 442.

In such a machine, each peg tray is handled individually delt, and there is a possibility of taking the peg trays under treat differently, such as this B. already in EP 402 630; EP 406 541 and DE-OS 34 34 576 in a different context is provided.

It is now possible e.g. B. to direct cops without errors to the winding unit 76 and further winding units, not shown, while cops with errors are forwarded to the winding units 72 and 74 .

Another step is possible with the application of fault location. If it can be determined where the error is, or the errors are, it is possible to treat the different cop sections differently. If e.g. B. the base of the cop contains an error, but the other parts are good, both the neck and the cylindrical part can be pulled off and rewound normally as first-class yarn, while the base is of inferior value via path 84 to the Kops preparation 78 for reintroduction in a winding unit 72 or 74 is sent back.

An improvement in the efficiency of the overall system is al however, it is also possible without an exact fault location. If be is known in which section of the cop the error or Errors are located, it is possible to full the good sections  exploit and the less good parts than inferior to treat.

The exact location also allows an adjustment the trigger conditions (speed, tension) to the Yarn parameters.

Important for realizing the "section by section" rewinding of Kopsen are according to this invention

• on the one hand, such a design of the "switch points" 90 ( FIG. 9) that only selected cops (peg trays) can enter the actual winding station conveying paths at these points, and
• - On the other hand, such a design of the cop preparation 78 (or another unit provided for this purpose) that the peg trays can be coded, the coding determining which winding station a peg tray is granted access to.

The means to make this possible is already in the winder available - see e.g. B. DE-OS 33 44 473; DE-OS 36 03 002 and DE-OS 36 28 045. A newly designed cop preparation for Treatment of "problem cops" is also in the EP Patent Application No. 92 810 115.3 dated February 19, 1992 and has been adapted for use in this invention will. The full content of the latter application is hereby inserted in this description.

The winding in sections can then also have advantages where the error message (let alone the location of the error) is impossible (e.g. because the necessary sensors are missing or because communication skills are not developed). It's be knows that the yarn has a structure in certain head parts has that of the structure of the yarn of the other headboards  deviates. Where a very uniform end product is required it is therefore worthwhile to only attach those head parts to it use that according to expectations the given structure will meet requirements.

This can also be done with simple means in the winder be lized. Suppose you are not ready to put the yarn in the bobbin base parts for a particular lot of packages can use the height of the package in the winding unit can be scanned (cf. DE-OS 39 42 304) and the rewinding can be canceled when the cop is pulled off to the base part has been. The rest of the yarn can then be used to prepare the cop Recoding (use in another winding unit) back be sent.

The same effect can be achieved with even simpler sensors be siert if each sleeve in different places of the Sleeve can be marked along, so that the lead remains the height of the package by reading the covered margin cations on the sleeve can be determined.

The ring spinning machine is unable to spool flyers like this treat flexibly like cops treated in the winder will. The different treatment of different ab Cutting a flyer spool is not possible. But it would be in Principle possible to exploit the fault location in that then when the defect reaches the surface of the coil, it e.g. B. is drawn off by a machine, so that afterwards by re-threading the fuse into the drafting system, spinning can continue. A capable automaton is e.g. B. in PCT patent applications WO 92/01098 and PCT / CH 91/00225 be been written.

Quality control

The upstream machines are usually not in position (i.e. they have no suitable sensors), the Fully monitor or control the product. The definitive testing still takes place in the winding unit instead of. The behavior of the upstream stages is also reduced as before based on the test results in the downstream Level judged.

Where it can be clearly determined in a winder that a certain production site is continuously producing a bad product and stresses the downstream stages, this production site should be switched off. This can e.g. B. happen by means of a mobile machine, as already suggested in connection with FIG. 1. But it can also be done by the machine itself, e.g. B. where each pro duction point is provided with its own match trigger which can be triggered by the machine control (e.g. according to US Pat. No. 4,763,467). However, it can also be carried out by an operator if appropriate instructions are given (for example according to WO 91/16481).

Match clamps are state of the art for the ring spinning machine nik. But it is now envisaged that the production sites of the Flyers can also be provided with match clips. A faulty one Flyer position can therefore now be switched off, so that the ring spinning machines and the winding machines are both from faulty products are relieved.

However, the transport system must now also have a new one the gift, either filling the empty one Place in the transport train or (as before) discarding the empty bobbin.  

However, the overall assessment of the facility is now as a result complicates that products in different places from the nor paint system to be eliminated. That's why the Invention mainly for use in combination with a Process control system, e.g. B. as in the already mentioned Technology is shown.

The determination of the true cause (s) of an error is in the in most cases a task for a process control system anyway, because only gross errors can be clearly identified on the basis of measured values have a single point evaluated. For this reason the determination of the type of error is not in this patent specification been treated. The process control system is in other Pa tent registrations described.

According to our Swiss patent application No. 482/92 dated February 18, 1992 it is envisaged regarding state data individual production sites through clearly identifiable Supplement data regarding operator interventions. Such be Service interventions can be carried out by an automatic control device or an operator can be performed. In the latter case the operator may be asked to provide data regarding the intervention via a suitable interface (Human-machine interface) to enter, preferably possibly entering ge during the intervention looks. The full content of application No. 482/92 is hereby inserted in this application.

Claims (9)

1. A method for controlling a spinning plant, which comprises a spinning machine (RSM) and a further processing machine (SPM) linked to the spinning machine, wherein preferably an operating machine with means for collecting data relating to the states of the spinning stations ( 1 , 2 , 3 ) Spinning machine is provided and this data is processed to state data of the packs in the spinning stations ( 1 , 2 , 3 ), characterized in that in the further processing machine (SPM) the packs produced in the spinning stations ( 1 , 2 , 3 ), the predetermined Categories of state data have been mapped before undergoing preferred or customized processing. 2. The method according to claim 1, characterized in that the packs to predetermined workplaces (SS) Processing machine (SPM) depending on the respective status data assigned to the pack be shared. 3. The method according to claim 1 or 2, characterized in that copse preferably processed without thread breakage will. 4. The method according to claim 1 or 2, characterized in that cops with broken threads of a predetermined preparation operation in a cop preparation center (KB) and be trained, for which purpose they are on a designated front preparation point are redirected. 5. The method according to any one of the preceding claims, characterized characterized that certain packs in a spool machine (SPM) on different winding units (SS)  in sections taking into account the applicable state data can be rewound. 6. Rewinding method for a winding machine (SPM) according to claim 5, characterized in that to form a cross only wind yarn from selected sections of cops is used. 7. Method for controlling a spinning plant according to one of the preceding claims, characterized in that with Defects on packs due to the collected data can be located by determining the length of the on the Pack of wound material until the appearance of the Errors with the help of the machine travel program by opening total the delivery of a drafting system made becomes. 8. Spinning machine according to one of claims 1 to 7, determine with control (PLR, MS), characterized in that, depending on the collected state data of the packs, fuses (LK) can be actuated at the production points ( 1 , 2 , 3 ). 9. Spinning machine with control means (PLR, SSP) for implementation one of the methods in claims 1 to 7.