EP0360287B1 - Station pour la préparation de canettes - Google Patents

Station pour la préparation de canettes Download PDF

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Publication number
EP0360287B1
EP0360287B1 EP89117583A EP89117583A EP0360287B1 EP 0360287 B1 EP0360287 B1 EP 0360287B1 EP 89117583 A EP89117583 A EP 89117583A EP 89117583 A EP89117583 A EP 89117583A EP 0360287 B1 EP0360287 B1 EP 0360287B1
Authority
EP
European Patent Office
Prior art keywords
thread
cop
station
package
searching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89117583A
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German (de)
English (en)
Other versions
EP0360287A1 (fr
Inventor
Manfred Schreiber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Filing date
Publication date
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Publication of EP0360287A1 publication Critical patent/EP0360287A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/006—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/082—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to a predetermined size or diameter of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/084—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to a predetermined weight of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/086—Preparing supply packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a method for detecting a thread end with a bobbin preparation station according to the preamble of claim 1 and a bobbin preparation station according to the preamble of claim 5.
  • cop preparation stations are located between a winding machine and a spinning machine and are generally integrated in the winding machine.
  • the spinning machine delivers packages wound on tubes with a relatively small diameter, called cops.
  • the thread end of a bobbin is detached from the surface of the bobbin thread body by a thread detection means, which can consist of a suction nozzle and a brush, and is detected in order to enable the subsequent automatic thread connection in the winding machine.
  • the thread end position ie the location on the surface of the package where the thread end is normally located, can be different and depends on the design of the spinning machine.
  • ring spinning machines do not have an integral case and supply cops with an under winding, although ring spinning machines with an integral case, the cops with a back winding or Deliver sheath winding, which are used more. Occasionally, cops with an upper turn occur.
  • the winding machine manufacturer installs a thread detection device in the bobbin preparation station that is matched to the type of thread end position. For reasons of economy, the detection or search process of the thread detection means is only available for about 15 seconds.
  • the respective bobbin is ejected and automatically returned to the bobbin preparation station, with an operator coming periodically to inspect the defective bobbin and to detach the end of the thread by hand and bring it into the correct end position.
  • the use of an operator is no longer sufficient. It can then happen that such cripple heads are repeatedly ejected onto the return loop with each search process, which can lead to congestion of the bobbins on the spinning machine and to underutilized winding stations on the winding machine.
  • Such a case can occur if, in the event of a thread break, the operating robot on the spinning machine, instead of connecting the thread end on the bobbin located in the spinning station with an auxiliary thread, creates an auxiliary thread - without connection - or throws it on the bobbin.
  • the upper end of the auxiliary thread is placed in the area of the exit rollers of the drafting system. This creates bobbin yarn bodies with several fiber part lengths, the thread ends of which are initially mostly gripped in the bobbin preparation station, after which the bobbins come into the winding machine.
  • these cops are unwound or pulled off to the end of a thread part length and then excreted, whereupon these crippled cops thus created are returned to the return loop.
  • an air flow control plate is provided near the outer circumference of the bobbin thread body and in the gap formed in this way, an air nozzle blowing upwards parallel to the longitudinal bobbin plane, with the aim of bringing a hanging thread end which is not in the predetermined position into the area of the thread detection means.
  • the thread end should be on the upper slope of the bobbin thread body, it makes sense, especially after studying the description below, that the thread end cannot be detached by blowing upwards.
  • a second aspect of the invention is more concerned with the integration of the thread search process in the work of the winding machine or with the cooperation of the bobbin preparation station with the winding machine.
  • the invention relates to a method for controlling a thread search station on textile machines, with a controlled thread search process for locating the thread end on a bobbin consisting of yarn body and sleeve, according to the preamble of claim 12. Furthermore, the invention relates to a device for carrying it out Procedure.
  • a thread search station is generally operated in connection with a winder.
  • This configuration can be preceded by a further textile machine, in particular a spinning machine. It will usually be a ring spinning machine.
  • a further textile machine in particular a spinning machine. It will usually be a ring spinning machine.
  • the function of the invention is described using the example of interaction with an upstream ring spinning machine, this example not being intended to be restrictive, since the invention is fundamental both for the thread search station itself and for the combination of the thread search station with a winding machine and other textile machines Brings advantages.
  • thread breaks occasionally occur, which must be mastered in the shortest possible time so that downtimes on the machines can be kept to a minimum. If the number of thread breaks exceeds a certain limit, this has a disadvantageous effect especially on spinning machines with a large number of spinning positions.
  • various methods and devices are known which are essentially aimed at searching for the end of the thread on the bobbin affected by thread breakage, which is initially still on the ring spinning machine, threading it back in and it then connect to the roving again. These attempts very often fail, which negatively affects the efficiency of the machines.
  • the cops with the prepared thread end must be fed to the automatic winder on which the cops are rewound onto larger packages.
  • the bobbin preparation station contains devices for searching the thread ends on the bobbins, which work according to a mechanical and / or pneumatic and / or electrical principle, namely according to a functionally and chronologically predetermined sequence diagram.
  • the workflow of such known cop preparation stations used to be relatively rigid and could only be adapted to a very limited extent to the structure of the package or to the location of a thread break on the cop.
  • the search process for the thread end was always the same, whether a cop that was faultless in terms of shape or a faulty one was fed. For example, under and under winds were searched for on the bob each time, even if not on the defective bob were present. This means that previous cop preparation stations lost a lot of time searching for the thread ends and that there were also frequent interruptions in production and wasted time in the cheese winder.
  • a cop preparation station which is set up to differentiate cops with S or Z rotation and to adapt the thread search operations accordingly.
  • the adjustment consists in that the direction of the cop rotation during the search process is chosen according to the rotation.
  • the applicant also proposed to provide an additional thread detection means and a head testing device in addition to the previous thread detection means, wherein one of the thread detection means can be activated by a corresponding signal from the head checking device. It is the object of the present invention in its second aspect to further develop a method and a device of the type specified at the outset such that the workflow can be further streamlined and automated at the cop preparation station and thus time is saved, so that even in a group, e.g. with a spinning machine and subsequent automatic winder, with even greater efficiency, if possible using uniform or at least compatible control means.
  • the decisive advantage of this method is that after detecting the shape and position of the package on the spinning tube in the cop preparation station the individual cops coordinated with the respective cops and the data assigned to them are triggered from a thread search overall program. Due to the type-specific localization of the thread end, only those parts of a complete thread search program that correspond to the actually possible position of the thread end on the package come into operation in the bobbin preparation station.
  • the package 1 shows a cop 1 with a package or package 2.
  • the package 2 wound on a sleeve 3 has an upper section of yarn 4 which has a conical surface or a bevel 6 and which in reality is somewhat more pointed as shown and a lower section of yarn 5, also called neck, which is actually somewhat rounded.
  • the designations "upper” and “lower” refer to the normal position of the cop in the spinning position of the spinning machine and become maintained in the following, even for the case where the cop lies horizontally in the cop preparation station.
  • FIG. 2 shows a thread detection means 12 which is matched to a rear winding 9 and which consists of a suction nozzle 13 and a number of articulated brushes 14 which can be moved at right angles to the package surface and which are normally located on the same side of the suction nozzle.
  • the suction nozzle 13 (solid line) with the brushes 14 are in the ready position and move according to the double arrow 17 into the working position 13.1 shown in dashed lines after the cop 1 has been placed in the cop preparation station.
  • the cop 1 is automatically turned back, the brushes 14 adapt to the profile of the package 2 and detach the thread end, with the suction nozzle 13.1 simultaneously Aspirates the thread end and then moves back to the ready position.
  • a gripper arm 18 (the two dashed positions indicate its working area) with a gripper 19 takes over the thread end or the end region of the thread end from the suction nozzle 13 and transfers the thread end to a central suction device 20. The thread end has thus been found and is ready for the subsequent rewinding process the winder has been detected.
  • the bobbin preparation station can be equipped with a thread detection means 23. This would be the case if an underwinding should be released, because the thread end position is then on the sleeve 3 below the shoulder 5.
  • the thread detection means 23 consists of a suction nozzle 24 and at least one brush 25 and is according to a double arrow 26 movable between a standby position drawn in solid lines and a working position drawn in dashed lines (reference number 24.1).
  • the gripper 19 takes over the thread end from the suction nozzle 24 and transfers it to the central suction 20.
  • a thread detection means which is matched to a less frequent upper turn 7 and thus to a thread end position on the sleeve 3 above the upper yarn section 4 is not shown.
  • Such a thread detection means would be identical to the thread detection means 23.
  • an additional thread detection means 29 is provided, in particular one on the upper one Yarn section 4 located thread end position is aligned or coordinated.
  • the thread detection means 29 again consists essentially of a suction nozzle 30 and a thread end releasing means, a brush 31, and can move from a standby position drawn in solid lines according to a double arrow 32, for example vertically into a working position 30.1 shown in broken lines. 3 to 6 are explained on the assumption that the spinning machine upstream of the cop preparation station delivers cops with rear winding 9.
  • the bobbin preparation station is therefore usually only equipped with the thread detection means 12, because the thread end is then only to be found in the cylindrical region of the package 2.
  • a thread detector 33 is provided in each thread detection means (only shown in the thread detection means 12), which ends the thread search process prematurely when a thread is present. The suitable thread detection device in use is thus deactivated prematurely.
  • FIG. 3 shows a cripple head, the package 2 of which has an indentation 37 in the cylindrical region.
  • the cause is a thread break that has occurred during the winding process but has been remedied.
  • a back turn 9 should therefore be present.
  • Fig. 4 shows a cripple cop with only one intact upper part of the package 2. The cause would be a delayed compared to the other cops on the spinning machine Thread application to the sleeve 3. Since it is known that the winding process on the sleeve begins with the approach 5, it is obvious that the winding process was completed normally. Therefore, there should be a back turn 9.
  • Fig. 5 shows a cripple head of another type. The lower part of the package 2 and thus the lower section of yarn 5 is present.
  • the upper part of the package 2 is missing or incomplete.
  • the cause here indicates a broken spun thread.
  • the thread end position or the thread end 40 is located on the upper slope 6.1 below the top slope 6 of a cop with an ideal profile. 6 has both an incomplete upper and lower part.
  • the thread end 40 is located on the upper slope 6.1.
  • a head tester is also present in the cop preparation station, which can have two pairs of light barriers 43, one light barrier each serving as a comparative light barrier 43.1.
  • sensors e.g. resilient sensor 44 may be provided.
  • the mode of action is as follows.
  • the upper yarn section 4 and the lower yarn section 5 of the package 2 are checked or scanned, always in relation to the bobbin with the ideal profile.
  • the light barriers 43 determine the presence of both the upper yarn section 4 and the lower yarn section 5 and only give a signal to the thread detection means 12, whereupon the suction nozzle 13 with the brushes 14 from the ready position to the working position 13.1 brought.
  • the thread detection means 29 remains in the ready position.
  • the sensors 44 only detect the presence of the upper yarn section 4.
  • the thread detection means 12 is put into operation, just as with a bobbin according to FIG. 3. If a bobbin according to FIG.
  • the thread detection means 29 comes into the bobbin preparation station, from the light barriers 43 or the sensors 44 detect the presence of the lower yarn section 5 and the absence of the upper yarn section 4.
  • the suction nozzle 30 is guided vertically downward according to the double arrow 32, but continues to descend according to an arrow 47 until the brush 31 touches the slope 6.1, whereupon the suction nozzle 30 is stopped.
  • the thread detection means 29 can be moved over the entire filling stroke of the cop thread body. Even in the absence of the upper yarn section 4 and the lower yarn section 5, as is the case with a cop according to FIG. 6, the checking means or the head testing device 43, 44 are designed such that only the thread detection means 29 is used.
  • the light barriers 43 or sensors 44 aligned with the lower yarn section 5 can optionally be omitted.
  • the head tester 43, 44 thus excites or activates either the normally provided suction nozzle 13 in this case or the additionally provided suction nozzle 30, depending on where it is most likely to find a thread end. As a result, an unsuccessful search for the thread end is not started at all. This leads to an increased efficiency and thus to an increased economy of the entire winding machine. Especially when the cops are transported on plate carriers, also called peg trays, as a result of which the thread ends of a yarn package 2 do not come into contact with the thread ends of other yarn packages 2 and the thread end therefore does not pass through the opening of another cop is pressed firmly into the surface of the package 2, efficiencies of 99% can easily be achieved.
  • the thread end of cripple heads of all kinds can practically always be found straight away and within the available time of about 15 seconds, even those heads according to FIGS. 5, 6 that have partial thread lengths. Operating personnel to examine the ejected heads is no longer necessary. If a bobbin according to FIGS. 1, 3 is processed in the bobbin preparation station, the winding unit of the bobbin winder will eject the bobbin in question onto the return loop when a thread break, ie a thread end 40, occurs. However, it is certain that the thread end 40 of this ejected bobbin, which now has the shape according to FIG. 5, will be found when it comes back into the bobbin preparation station. Only that part of the thread is touched or touched where the end of the thread is in all probability, which benefits the quality of the thread.
  • the head tester could also have a weighing device 45 with which the head is weighed. If the determined weight lies within the predetermined tolerance, it can be concluded that it is a cop according to FIG. 1, whereby the thread detection means 12 is automatically activated.
  • the sleeves 3 can have a coding that includes the origin, so that a reader on the return loop can forward this information to a computer. This enables appropriate conclusions to be drawn (data evaluation).
  • the ring spinning machine 1 includes conventional elements such as drafting system, thread guide elements, ring travelers and spindles for receiving the sleeves to which the package is applied, and possibly an auxiliary piecer. A detailed description of these elements known per se is dispensed with in favor of a clear representation of the elements of the present invention.
  • Copies 120 and cops 121 with non-continuous thread are pulled from the spindles of the spinning machine 1 together by the spinning machine 101, and cops 121 with a non-continuous thread during the doffing process and fed to a cop preparation station 125 via transport means 115. From there, prepared cops 130 with identified thread ends are transferred to a winding station 135.
  • the bobbin preparation station 125 contains, as essential assemblies, a test device 126 and a thread search device 127.
  • the data collection elements 105, 106, 107 cooperate with the test device 126 and move them at a suitable point on the path of the bobbins from the spinning machine 101 to the bobbin preparation station 125 are arranged.
  • the test station 126 and in particular the data acquisition elements 105 to 107 are connected to a computer 110 in which, for example, a process control is integrated.
  • the data obtained can be transmitted to further data processing devices or storage elements or on data carriers in a stored form to hand over.
  • the tests carried out in station 126 may, for example and advantageously, be the tests described in connection with FIGS. 3 to 6.
  • the task of the thread search device 127 within the bobbin preparation station 125 is to search for and expose the end of the thread and to prepare for the further processing of the prepared bobbins 130 at the winding station 135.
  • Bunches 131, the thread end of which are not exposed with the thread search device 127 after having repeated the processing steps described later could be returned from the cop preparation station 125 to a cop memory 132 for manual post-processing.
  • an ejection device 180 is provided, which is controlled by the computer 110 via a signal transmitter 170.
  • the number of such returns of the same cop from the winding machine 135 to the cop preparation station 125 can be limited via the process control. For example, mark readers capture 150 the identity of the cops and deliver this data to a counting and comparison device 160 in the computer 110. If it is determined by comparison with predetermined values that the permissible number of returns of the same cop is exceeded, it can be assumed that the cop contains many individual threads , and the signal generator 170 and thus the ejection device 180 are activated in the cop preparation station 125. The faulty cop 131 is ejected into the head memory 132, so that idling in the production process is avoided.
  • the automatic winder 135 not only returns bobbins to the bobbin preparation station 125 for which a thread break is determined and the winding unit is not able to reconnect the two ends of the bobbin and bobbin.
  • the same consequences also result in voltage breaks on the automatic winder 135, which occur during the rewinding process and interrupt the winding process.
  • a thread cleaner cut when the bobbin runs correctly is not regarded by the process control as an interruption of the winding process, which would result in a return of the bobbin in question.
  • the finished bobbins 140 are produced at the exit of the winding station 135, while the empty-wound bobbins 145 are returned to the spinning machine 101.
  • All cops reach the test station 126 with a defined orientation, for example with the tip pointing upwards.
  • a first test step it is determined whether the cop or its package is in its position on the spinning tube and in shape (contour) is free of defects.
  • error A cop or its package is free when the package start and package end on the spinning sleeve are at the start and end positions specified by the ring spinning machine and the package has a cylindrical shape and under and / or under or over turns (tip bunch) having. Deviations may lie within certain limits. If these conditions are met, there is no filament breakage.
  • Copes identified as error-free in this way are further processed in the thread search station 127 by means of various elements known per se to expose the thread end. For example, the bobbins are examined according to the previously determined test data with regard to under and / or behind or top windings, and the thread end is released. The cops 130 treated in this way with the prepared thread end are transferred to the winding unit of the automatic winder 135.
  • the testing device 126 determines whether the beginning and end of the package lie at the predetermined position. If this is the case, and if the package is not cylindrical, but instead is provided with a constriction, for example, the lower and / or the rear or the upper winding is loosened or the thread end exposed in the thread search station by means of various elements. Such a cop with a prepared thread end can then also be transferred to the winding station of the automatic winder 135.
  • the end of the thread in the thread search station is only in the area at the tip of the cop (on the cone, so-called spinning thread breakage) ) searched and uncovered.
  • the formerly usual Searching for the thread end also on the lower and / or the rear turn or on the upper turns is then not necessary and is omitted.
  • the end of the thread found is prepared and the bobbin can also be transferred to the winding unit of the automatic winder 135.
  • Another case in which an error in the shape of the cop is detected can occur when the end of the package is at the predetermined position, but its beginning is not.
  • the thread search station will undo the lower and / or rear or upper windings and expose the end of the thread.
  • the selective control of the thread search elements 140, 141 is preferably carried out in a servo-controlled manner by means of control inputs 142, 143 from the computer 110, in accordance with a predetermined control algorithm as a function of the data from the data acquisition elements 105-107 of the test station 126 the respective material or yarn quality are related.
  • the program-controlled thread search device 127 is provided, for example, with a thread detector which triggers an immediate termination of the further search process as soon as a thread has been found. If the thread is found, a cop transfer device 130 is activated, which triggers the transfer of the prepared cops 130 to the winding station 135.
  • the process control is preferably designed such that, in the case of a predetermined number of cases in which a thread end was not found in direct succession, the defective cop 131 from the ejection device 180 the cop preparation station 125 is ejected into the head memory 132.
  • the yes / no decision levels are based on determined measurement data, the decisions preferably being made by the computer 110 on the basis of the operating program entered for it. Relevant data relating to the cops or the yarn material or other data of the spinning and winding process that will be required later are saved. They can be used for further process control. They can also be used to draw conclusions about the operating state of the individual spinning positions on the spinning machine. For example, the test data arising at the cop preparation station about the position and the shape of the packages are evaluated, or spinning station-related data from the spinning machine, in particular if the sleeves are provided with an identification mark and e.g. in addition to the data mentioned above, the number of thread breaks at the respective spinning station is also recorded. This allows a qualitative assessment of each individual spinning position and thus an early error diagnosis within the overall network.
  • Weight sensors can be provided, for example, as measurement sensors for determining the shape of the package in the test station of the bobbin preparation station, as indicated, for example, by 45 in FIG. 6, which determine deviations in the weight of the finished bobbin from a predetermined target weight.
  • position sensors for example in the form of light barriers 43, 43.1 as shown in FIGS. 3 and 4, are suitable for determining the contour and for the position of the package on the sleeve. Even at the end of the ring spinning belt, sensors can be used to determine the position of the package on a cop that is error-free with regard to its contour be arranged.
  • the search and exposure of the thread end takes place specifically, according to the respective package.
  • Filled cops coming from the spinning machine 101 and thus classified by the test station 126 as "error-free" are fed to the winding station 135 with the thread end prepared. Any thread breakage present on the cop is initially ignored. It only makes itself felt at the winding point.
  • There a bobbin with thread break is ejected and returned to the bobbin preparation station 125 via the bobbin return 129.
  • the cop runs through the test program again, whereupon only those thread search elements in the thread search device 127 which correspond to the test result are activated in a program-controlled manner.
  • the cop with the prepared thread end is then fed again to the winding station 135 for further rewinding.
  • a particularly advantageous effect in the overall process is that, in the bobbin preparation station 125, only those thread search elements of the thread search device 127 which correspond to the position of the thread end on the package come into operation in a program-controlled manner. The throughput of the cops in the cop preparation station is accelerated considerably.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (20)

  1. Procédé pour saisir une extrémité de fil d'une canette possédant un fil, dans une station de préparation de canettes pour un débobinage respectivement rebobinage ultérieur,
       caractérisé par le fait que
    chaque canette est d'abord examinée du point de vue présence de fil, et que, à la suite du contrôle, un moyen de saisie de fil approprié est activé pendant un laps de temps déterminé.
  2. Procédé selon revendication 1,
       caractérisé par le fait que
    chaque canette est examinée par pesage pour déterminer la présence de fil.
  3. Procédé selon revendication 1,
       caractérisé par le fait que
    chaque canette est examinée pour déterminer la présence de fil au moins dans la partie de fil supérieure, relative à une canette ayant un profil idéal.
  4. Procédé selon revendication 1 ou 3,
       caractérisé par le fait que,
    après avoir trouvé l'extrémité de fil, le moyen de saisie de fil approprié est désactivé prématurément.
  5. Station de préparation de canettes servant à la réalisation du procédé selon revendication 1, avec un moyen de saisie de fil accordé au type de position d'extrémité de fil,
       caractérisée par le fait
    qu'il existe un moyen de saisie de fil supplémentaire (29) et un appareil de contrôle de canette (43, 44), et que l'un des moyens de saisie de fil peut être activé par un signal correspondant venant de l'appareil de contrôle de canette.
  6. Station de préparation de canettes selon revendication 5,
       caractérisée par le fait que
    le moyen de saisie de fil supplémentaire est adapté à la pente supérieure (6, 6.1) du corps de fil de canette (2).
  7. Station de préparation de canettes selon revendication 5 ou 6,
       caractérisée par le fait que
    le moyen de saisie de fil supplémentaire (29) est mobile le long de la course de remplissage du corps de fil de canette.
  8. Station de préparation de canettes selon revendication 5,
       caractérisée par le fait que
    l'appareil de contrôle de canette est au moins une cellule photo-électrique (43, 43.1) ou un détecteur (44) utilisé pour déterminer la partie de fil supériere (4) d'un corps de fil de canette s'étendant sur la course de remplissage.
  9. Station de préparation de canettes selon revendication 5,
       caractérisée par le fait que
    l'appareil de contrôle de canette possède un dispositif de pesage (45).
  10. Station de préparation de canettes selon revendication 5,
       caractérisée par le fait que
    chaque moyen de saisie de fil (12, 29) possède un détecteur de fil (33) qui achève le processus de recherche de fil.
  11. Procédé pour commander une station de recherche de fil dans des machines textiles, avec un déroulement de processus de recherche de fil commandé, utilisé pour rechercher l'extrémité de fil située sur une canette constituée d'un corps de fil et d'un fuseau,
       caractérisé par le fait que,
    avant le début du processus de recherche de fil, les canettes traversent une station de contrôle (126) dans laquelle des données de casses de fil, spécifiques à la canette et commandées par programme, sont collectées, et que, en vertu des données de casses de fil spécifiques à la canette, la station de recherche de fil (127) est activée pour le déclenchement sélectif de tels déroulements partiels d'un processus de recherche de fil complet qui sont assujettis par le programme aux données de casses de fil spécifiques à la canette.
  12. Procédé selon revendication 11,
       caractérisé par le fait que,
    en premier lieu, le contour de la canette est examiné du point de vue absence de défaut, que, lors d'absence de défaut, la canette est ensuite examinée du point de vue présence de renvidages inférieur, et/ou intermédiaire ou supérieur, et que, lors de résultat positif, des processus de recherche de fil de renvidages inférieur, et/ou intermédiaire ou supérieur sont déclenchés dans la station de recherche de fil (127).
  13. Procédé selon revendication 11,
       caractérisé par le fait que,
    en premier lieu, le contour de la canette est examiné du point de vue absence de défaut, que, lors de l'apparition d'un défaut de forme, elle est ensuite examinée pour savoir si le début et la fin du corps de fil se trouvent dans la position prédéterminée, et que, lors de résultat positif, des processus de recherche de fil de renvidages inférieur, et/ou intermédiaire ou supérieur sont déclenchés dans la station de recherche de fil (127).
  14. Procédé selon revendication 11,
       caractérisé par le fait que,
    en premier lieu, le contour de la canette est examiné du point de vue absence de défaut, que, lors de l'apparition d'un défaut de forme, elle est ensuite examinée pour savoir si le début et la fin du corps de fil se trouvent dans la position prédéterminée, et que, lorsque le début de corps de fil est sans défaut et la fin de corps de fil est défectueuse, des processus de recherche de fil ne sont déclenchés, dans la station de recherche de fil (127), que dans la zone de la pointe de la canette, et des processus de recherche de renvidages inférieur, et/ou intermédiaire ou supérieur sont supprimés.
  15. Procédé selon revendication 11,
       caractérisé par le fait que,
    en premier lieu, le contour de la canette est examiné du point de vue d'absence de défaut, que, lors de l'apparition d'un défaut de forme, elle est ensuite examinée pour savoir si le début et la fin du corps de fil se trouvent dans la position prédéterminée, et que, lorsque la fin de corps de fil est sans défaut et le début de corps de fil est défectueux, des processus de recherche de fil de renvidages inférieur, et/ou intermédiaire ou supérieur sont déclenchés dans la station de recherche de fil (127).
  16. Procédé selon revendication 11,
       caractérisé par le fait que,
    en premier lieu, le contour de la canette est examiné du point de vue absence de défaut, que, lors de l'apparition d'un défaut de forme, elle est ensuite examinée pour savoir si le début et la fin du corps de fil se trouvent dans la position prédéterminée, et que, lorsque le début de corps de fil est défectueux et la fin de corps de fil est défectueuse, des processus de recherche de fil dans la zone de la pointe du corps de fil sont déclenchés.
  17. Procédé selon revendication 11, en connexion avec la marche d'une station de filage (101) située en amont,
       caractérisé par le fait que,
    lors de l'apparition d'une casse de fil dans la zone de la station de filage (101), une nouvelle extrémité de fil, sans liaison avec le fil du corps de fil, c'est-à-dire sans réparation de la casse de fil, est enroulée sur le corps de fil, que l'enroulement de la canette est achevé en gardant la casse de fil, et que la canette est transmise vers la station de préparation de canettes (125, 126, 127) pour la réalisation du programme de contrôle et du processus de recherche de fil dépendant du résultat du processus de contrôle.
  18. Procédé selon revendication 11, en connexion avec la marche d'un poste de bobinage (135) situé en aval,
       caractérisé par le fait que,
    lors de l'apparition d'une casse de fil non contrôlée dans la zone du poste de bobinage (135), la canette concernée est renvoyée vers la station de préparation de canettes (125, 126, 127) pour la réalisation du programme de contrôle et du processus de recherche de fil dépendant du résultat du processus de contrôle.
  19. Dispositif servant à réaliser le procédé selon revendication 11,
       caractérisé par le fait
    qu'un dispositif de contrôle (126) est prévu, du côté entrée de la station de préparation de canettes (125), pour les canettes livrées (120, 121), dispositif qui est équipé de détecteurs de poids et/ou de contour (105-107) afin de déterminer la forme et la position du corps de fil sur le fuseau, que les sorties des détecteurs (105107) sont reliées à un dispositif de traitement de signaux (110), et que la station de recherche de fil (127) possède des éléments de recherche de fil (140, 141) pouvant être activés sélectivement, dont les entrées de commande (142, 143) se trouvent en liaison avec le dispositif de traitement de signaux (110).
  20. Dispositif selon revendication 19, avec des lecteurs de marquages (150) utilisés pour l'identification de fuseaux de fil marqués (141),
       caractérisé par le fait que
    le dispositif de traitement de signaux (110) comporte un dispositif de comptage et de comparaison (160) pour la détection d'un nombre dépassant une valeur prédéterminée de passages de recherche de fil de la même canette, et que des émetteurs de signaux (170), dépendant du résultat de cette examination, sont prévus dans la zone de la station de préparation de canettes afin de déclencher un signal de commande à un dispositif éjecteur de canette (180).
EP89117583A 1988-09-23 1989-09-22 Station pour la préparation de canettes Expired - Lifetime EP0360287B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH354588 1988-09-23
CH3545/88 1988-09-23
CH4126/88 1988-11-07
CH412688 1988-11-07

Publications (2)

Publication Number Publication Date
EP0360287A1 EP0360287A1 (fr) 1990-03-28
EP0360287B1 true EP0360287B1 (fr) 1992-11-19

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ID=25693284

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Application Number Title Priority Date Filing Date
EP89117583A Expired - Lifetime EP0360287B1 (fr) 1988-09-23 1989-09-22 Station pour la préparation de canettes

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US (1) US5058816A (fr)
EP (1) EP0360287B1 (fr)
JP (1) JPH02198985A (fr)
DE (1) DE58902763D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428245B4 (de) * 1994-08-10 2005-04-21 Saurer Gmbh & Co. Kg Vorrichtung zum Suchen des Fadenendes am Bewicklungskegel von Kopsen
DE19636661A1 (de) * 1996-09-10 1998-03-12 Schlafhorst & Co W Transportsystem für eine Textilmaschine
ITMI20012421A1 (it) * 2001-11-16 2003-05-16 Savio Macchine Tessili Spa Dispositivo e procedimento per depurare il filo della bobina di alimentazione ad una roccatice automatica dai suoi tratti terminali difettos
WO2012109577A2 (fr) 2011-02-10 2012-08-16 Hysitron, Inc. Système de test nanomécanique
DE102014017818A1 (de) 2014-12-03 2016-06-09 Saurer Germany Gmbh & Co. Kg Verfahren zur Herstellung und Weiterverarbeitung eines Spinnkopses

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE569911A (fr) *
US3236464A (en) * 1962-02-03 1966-02-22 Reiners Walter Device for removing a starting length of yarn from a textile coil
DE1785236C2 (de) * 1968-08-30 1983-01-13 Kanebo K.K., Tokyo Wartungswagen an Ringspinnmaschinen zum Andrehen gerissener Fäden
US3591951A (en) * 1968-09-03 1971-07-13 Kanegafuchi Spinning Co Ltd Yarn piecing apparatus for spinning frame
DE2305260A1 (de) * 1973-02-02 1974-08-08 Zinser Textilmaschinen Gmbh Verfahren und einrichtung zur behandlung von kopsen oder dergleichen
DE2351312C3 (de) * 1973-10-12 1980-08-07 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Verfahren und Vorrichtung zum selbsttätigen Beheben von Fadenbrüchen an Spinnmaschinen
JPS5859167A (ja) * 1981-09-25 1983-04-08 Murata Mach Ltd 管糸搬送システム
US4576341A (en) * 1982-03-08 1986-03-18 Murata Kikai Kabushiki Kaisha Cop transporting systems for an automatic winder
EP0128121A1 (fr) * 1983-06-03 1984-12-12 Maschinenfabrik Schärer AG Equipement pour l'enlèvement pneumatique du sous-renvidage des cannettes
JPS61169452A (ja) * 1985-01-23 1986-07-31 Murata Mach Ltd 糸端の口出し装置
JPS61267670A (ja) * 1985-05-22 1986-11-27 Murata Mach Ltd 糸端の口出し装置
JPS6260781A (ja) * 1985-09-10 1987-03-17 Murata Mach Ltd 糸端の口出し方法
JPS6270178A (ja) * 1985-09-24 1987-03-31 Murata Mach Ltd 糸端の口出し装置
US4858836A (en) * 1986-12-12 1989-08-22 Murata Kikai Kabushiki Kaisha Yarn end finding device
US4842206A (en) * 1987-12-21 1989-06-27 Murata Kikai Kabushiki Kaisha Automatic yarn end finding device for a spinning bobbin
JP2541841B2 (ja) * 1988-06-08 1996-10-09 村田機械株式会社 糸端の口出し装置

Also Published As

Publication number Publication date
EP0360287A1 (fr) 1990-03-28
DE58902763D1 (de) 1992-12-24
JPH02198985A (ja) 1990-08-07
US5058816A (en) 1991-10-22

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