EP0851044A1 - Banc à broches - Google Patents

Banc à broches Download PDF

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Publication number
EP0851044A1
EP0851044A1 EP97120598A EP97120598A EP0851044A1 EP 0851044 A1 EP0851044 A1 EP 0851044A1 EP 97120598 A EP97120598 A EP 97120598A EP 97120598 A EP97120598 A EP 97120598A EP 0851044 A1 EP0851044 A1 EP 0851044A1
Authority
EP
European Patent Office
Prior art keywords
speed
evaluation
control unit
drive unit
machine according
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.)
Granted
Application number
EP97120598A
Other languages
German (de)
English (en)
Other versions
EP0851044B1 (fr
Inventor
Franz Dr. Machnik
Hans-Peter Weeger
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Zinser Textilmaschinen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zinser Textilmaschinen GmbH filed Critical Zinser Textilmaschinen GmbH
Publication of EP0851044A1 publication Critical patent/EP0851044A1/fr
Application granted granted Critical
Publication of EP0851044B1 publication Critical patent/EP0851044B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/32—Driving or stopping arrangements for complete machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/04—Doffing arrangements integral with spinning or twisting machines
    • D01H9/046—Doffing arrangements integral with spinning or twisting machines for flyer type machines

Definitions

  • the invention relates to a roving machine with the features the preamble of claim 1.
  • the start-up of roving machines usually takes place in such a way that the pre-spinning machine at Switching on does not immediately start up to its operating speed, but for a while at a much lower speed, the so-called tip speed, remains before it is final accelerated to the operating speed.
  • the tip speed serves the tensile forces acting on the fuse in the initial phase to be kept low, otherwise a new rupture of the match in the area of an attachment point or pulling off the fuse from the capture area of an empty sleeve would be feared.
  • the operator is given an observation of the start-up of the Rewinder enables.
  • the short-term operation of the pre-spinning machine with a jog speed serve to provide a slack sag between the drafting system and to eliminate the enema in the flyer enema to thereby to prevent possibly broken rags.
  • the press fingers provided in the wings automatically attach to the Brought sleeves, whereby the match ends by means of the press fingers come into contact with the capture areas of the empty tubes.
  • press fingers of the flyer wings as from DE 15 60 317 A1 known, designed so that the application of the press fingers on the area of increased capture effect of the sleeve when the Wing is done under centrifugal action, so is for reaching a sufficiently high contact pressure a certain minimum speed required. For example, this can be between 250 and 300 rpm. lie.
  • a first lower jog speed is, for example used for starting the machine after one Thread break or for moving to a certain wing position or for safe handling in the area of the wings in tip mode the machine.
  • a second, opposite the first jog speed higher jog speed is for starting up the machine after a doffing operation.
  • the first tip speed not only to avoid renewed rupture of matches in the area between drafting system and spool after rectification of a match break, but also for example to do this after attaching the tape ends to the input side of the Drafting system the forces acting on this attachment point as a whole Processing area of the machine, especially between To reduce drafting system output and spool.
  • the wing in a certain angular position, for example around one manual doffing.
  • the first tip speed is therefore preferred selected in the range of approx. 90 blade revolutions per minute.
  • the Invention the task of creating a roving machine in which a secure capture of the match ends after a Guaranteed doffing and the risk of a new thread break while starting up the machine after a match break or a hazard to an operator during a manual intervention in the jog mode of the machine is avoided.
  • a simple approach to a defined angular position of the Flyer wings and good observability of the machine functions be possible during a test run.
  • the evaluation and control unit is assigned a START button and at least a selection signal is supplied, which the evaluation and Control unit for assigning at least two control functions for the drive unit when the START button is pressed evaluates.
  • the wings are the Roughing machine with at least one cover that can be opened coverable and the selection signal, the signal is at least one provided on the cover or the sensor, which the closed or open position of the covers detected.
  • the Evaluation and control unit when detecting at least one opened cover the drive speed to the first Tip speed as maximum wing speed. Because this also means Operator safety should be guaranteed the first tip speed is preferably in the range of approximately 90 wing revolutions chosen per minute.
  • the START button and at least one open cover shutdown machine for an actuation time that is smaller is the machine as a predetermined time threshold to the tip creep speed and at this speed held.
  • This speed is chosen so low that e.g. a easy approach to a certain angular position of the wing by means of the START button and the STOP button.
  • the evaluation and Control unit Since moving to a certain angular position within a or less wing revolutions is possible, the evaluation and Control unit the drive unit according to a predetermined Time period or after a predetermined number of revolutions stop the wing.
  • the START button when pressed the START button when the machine is stopped and at least with the cover open, first move the machine to the Tip creep speed ramped up, this for a predetermined Maintain period of time and then the machine on the The first tip speed accelerates if the START button is longer is pressed when the time threshold is activated. The The machine stops again as soon as the START button is finished.
  • the drive unit when detecting only closed ones Covers when the START button is pressed when the switch is stopped Machine for a period of time greater than that further threshold value, the drive unit preferably initially to the second tap speed and after an end of the actuation the START button accelerates to the operating speed of the blades, which range from 800 to 1800 revolutions per Minute lies.
  • the second jog speed is preferably in Range of approx. 250 to 300 blade revolutions per minute.
  • the roving machine after the invention is the machine when the START button is pressed during an operating phase of the machine at an operating speed, which is greater than the second jog speed the second jog speed is delayed and after the end of the actuation the START button the machine from the second jog speed again accelerated to the operating speed.
  • Fig. 1 shows a flyer according to the invention, in the usual Way a drafting system 1 from cans 2 tapes to be processed be fed.
  • the flyer has two rows of wings 3, which is supplied with a fuse from the exit of the drafting unit 1 becomes.
  • the drafting device 1 can, as in FIGS. 1 and 2 shown, consist of three pairs of rollers.
  • Each fuse is in the relevant wing 3 to the bottom a wing arm and runs from this to a sleeve 5, on which the fuse is wound into a coil.
  • the Sleeves 5 are driven by a drive unit 9 Spindles attached, which are driven on a vertically movable Bank are arranged.
  • the bank is driven in such a way that a biconical coil structure is achieved.
  • the drive unit 9 can, for example, be a central one Drive motor with a corresponding branching gear or have multiple drive motors, each one or more Drive functions are assigned.
  • the area is more driven Elements, especially the area of the rotating wing, of one or more covers 23 covered to pose a hazard prevent from operators. Any cover can do it be assigned to a group of jobs with wings 3.
  • Each cover is in a closed position open position swiveling.
  • Axis pivotable covers formed in two parts be, a first part 23 'articulated with a second part 23 '' is connected.
  • FIG. 2 are only of the flyer shown in Fig. 1 schematically the drafting system 1 and a wing 3 of a row of wings with the associated sleeve 5 and an evaluation and control unit 7, which shows the drive unit 9 of the roving machine controlled in a suitable manner.
  • the drive unit 9 comprises at least an electric motor drive for the warping functions (Drafting system), twisting (wing) and winding (spindles or Spools) and for the vertical movement of the spool bank Generation of the usual biconical coil structure.
  • the individual Drives controlled by a suitable control unit be that the spinning laws are observed.
  • the control unit can be integrated in the drive unit 9, for example be.
  • the evaluation and control unit 7 is the signal of a START button 11 and a STOP button 25 supplied.
  • the evaluation and control unit 7 can transmit the signal 17 at least one match break sensor 15 may be supplied. This leads the evaluation and control unit 7 a match break signal 17 as soon as a single fuse of the roving machine breaks is detected.
  • a match break sensor 15 may be supplied.
  • tape break sensors can also be used in an analogous manner (not shown) may be provided.
  • the evaluation and control unit 7 is also a withdrawal signal 19 fed. This can be done, for example, by means of a manually operated button or switch (not shown) or from a higher-level machine control be generated.
  • the evaluation and control unit 7 can receive the signal 22 be fed to at least one sensor 21, which is the open one or closed position of the covers 23 is detected.
  • the evaluation and control unit 7 can receive the signal 22 be fed to at least one sensor 21, which is the open one or closed position of the covers 23 is detected.
  • Sensor several covers or each cover separate sensor can be assigned.
  • the evaluation and control unit 7 Detects the evaluation and control unit 7 based on the match break signal 17 a match break, it sets the drive unit 9 still by generating a corresponding signal 13.
  • the evaluation and control unit is in this case of course known that the stopping as a result of a match break was necessary and the restart after a restart the fuse can be made in such a way that the Machine to the first lower jog speed at least an open cover or the second higher jog speed accelerated with covers completely closed becomes. This speed is maintained at least as long as the starting point of the fuse is in the spinning area, so that only slight tensile forces are exerted on the attachment point.
  • closed Covers initially only on the first lower tap speed be started up, depending on the processing material at the second higher tip speed there are more ruptures are to be expected from an overload of the attachment point.
  • the first jog speed is preferably in the range of approximately 90 Revolutions of the wing 3 selected per minute, because of this on the one hand correspondingly low tensile forces on the fuse in the spinning area be exercised and on the other hand even when open or missing covers 23 the risk to operators practically impossible when handling the spinning area can be.
  • the evaluation and control unit 7 limits the Speed of the wing 3 upon detection of one or more open Covers 23 also on this first tap speed.
  • the evaluation and control unit 7 sets the drive unit 9 due to a withdrawal end signal 19 silent, this is of course also known to the evaluation and control unit 9, so that this can ensure that after the required Doffing the machine first to catch the match ends using the press fingers to the required starting speed, which is in the range of the second higher jog speed is accelerated. After the capture of the The machine can then be matched to the operating speed are started up, provided none of the sensors 21 are detected an open cover.
  • the evaluation and control unit 7 knows that this is the last it must be stopped due to a broken match , you can press the START button 11 assign the function that automatically first to the first Tip speed increased, this for a predetermined period of time kept (preferably as long as the attachment point in the Processing area) and then on the operating speed is accelerated.
  • the evaluation and control unit 7 known that the last stop was due to a withdrawal end signal 19 was required, it can be the following actuation of the START button 11 assign the function that first to the second jog speed raised (provided all covers are closed) for a predetermined period of time held and then accelerated to the operating speed becomes.
  • the evaluation and control unit of the actuation of the START button 11 can Assign function that under the condition closed Covers 23 immediately to the operating speed or at least an open cover to the maximum permissible Speed, preferably accelerates the first lower speed becomes.
  • the relevant tipping speed can also be done manually by pressing the START button 11 accordingly Way and an appropriate interpretation of the signal of the START button done by the evaluation and control unit 7.
  • the evaluation and control unit 7 receives a short START signal by means of the START button 11, the machine is immediately accelerated to the operating speed.
  • the evaluation and control unit detects the duration t 1 of the actuation of the START button 11 and compares this with a threshold value dt 1 . If t 1 is less than dt 1 , the operating speed is increased immediately, otherwise initially to the second, higher jog speed. This is shown in FIGS. 3a and 3b, with the abscissa the time axis and the ordinate the actuation of the START button 11 (first diagram in each case) and the STOP button 25 in all diagrams of FIGS. 3a, 3b and 4a, 4b (second diagram) and the wing speed (third diagram).
  • the temporal threshold value dt 1 is preferably chosen so that its end coincides approximately with the time the second jog speed is reached when the machine starts up under normal circumstances, but can also be selected to be significantly shorter.
  • the operator of the machine If the operator of the machine is aware that an immediate acceleration to the operating speed is not permitted, such as after a match break or a doffing process, he can operate the machine for a period t 2 longer than the threshold value dt by pressing the START button 11 1 start up.
  • the evaluation and control unit 7 controls the drive unit 9 in such a way that first an acceleration to the relevant jog speed and maintaining this speed and only after the end of the actuation signal of the START button 11 (time period t 2 ) does the vehicle run up to the operating speed.
  • the evaluation and control unit 7 can e.g. aware of the Cause of the last shutdown of the machine (see above) specify the respective first or second jog speed, if all covers 23 are closed.
  • the aforementioned selection of the jog speed can be dispensed with due to the intelligence of the evaluation and control unit.
  • the second jog speed can be used to start up if the START button 11 is pressed longer than the threshold value dt 1 .
  • the evaluation and control unit 7 can actuate the drive unit 9 when the START button 11 is actuated during the operating phase in such a way that the wing speed is reduced to the second jog speed and is held until the actuation of the START button ends after a period of time t 3 .
  • 4a and 4b show the functions of the START button 11 upon detection of at least one open cover 23, i.e. when a corresponding signal 22 is present.
  • the START button 11 is actuated for a period of time t 4 less than a further threshold value dt 2 , the acceleration to a creep speed which is selected to be so low that in particular a defined approach to a certain angular position of the vanes 3 is possible.
  • the machine is stopped using the STOP button 25 (FIG. 4a).
  • the evaluation and control unit can, for example for reasons of safety, stop the machine after a certain period of time t 6 or after a certain number of wing revolutions.
  • the evaluation and control unit 7 first drives the drive unit 9 with the tip creep speed, maintains this control for time period dt 2 , then accelerates to the first tip -Speed and maintains this as long as the START button 11 is pressed. With the end of the actuation of the START button 11 after a period of time t 5 , the machine is stopped again.
  • the invention additionally provides an extremely easy usability of the machine for sure what in short training times for the operators and one high operational safety.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP97120598A 1996-12-02 1997-11-25 Banc à broches Expired - Lifetime EP0851044B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19649909A DE19649909C1 (de) 1996-12-02 1996-12-02 Vorspinnmaschine
DE19649909 1996-12-02

Publications (2)

Publication Number Publication Date
EP0851044A1 true EP0851044A1 (fr) 1998-07-01
EP0851044B1 EP0851044B1 (fr) 2002-04-17

Family

ID=7813372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97120598A Expired - Lifetime EP0851044B1 (fr) 1996-12-02 1997-11-25 Banc à broches

Country Status (4)

Country Link
US (1) US5904036A (fr)
EP (1) EP0851044B1 (fr)
JP (1) JPH10212628A (fr)
DE (2) DE19649909C1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29723471U1 (de) * 1996-07-16 1998-09-17 Zinser Textilmaschinen Gmbh, 73061 Ebersbach Vorrichtung beim Spulenwechsel an einer Vorspinnmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119000A1 (de) * 1980-05-16 1982-02-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi Verfahren zum anfahren eines flyerrahmens
DE4406488C1 (de) * 1994-02-28 1995-08-10 Zinser Textilmaschinen Gmbh Vorspinnmaschine
DE19527339C1 (de) * 1995-07-26 1996-10-10 Zinser Textilmaschinen Gmbh Vorspinnmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH442090A (de) * 1966-10-19 1967-08-15 Toyoda Automatic Loom Works Vorspinnmaschine
BR8008852A (pt) * 1979-09-28 1981-07-21 Rieter Ag Maschf Dispositivo para comando das rotacoes dos fusos de um filatorio preparatorio
DE3463361D1 (en) * 1983-08-02 1987-06-04 Howa Machinery Ltd Apparatus for controlling the winding speed of roving in roving frame

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119000A1 (de) * 1980-05-16 1982-02-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi Verfahren zum anfahren eines flyerrahmens
DE4406488C1 (de) * 1994-02-28 1995-08-10 Zinser Textilmaschinen Gmbh Vorspinnmaschine
DE19527339C1 (de) * 1995-07-26 1996-10-10 Zinser Textilmaschinen Gmbh Vorspinnmaschine

Also Published As

Publication number Publication date
US5904036A (en) 1999-05-18
DE19649909C1 (de) 1997-07-31
JPH10212628A (ja) 1998-08-11
EP0851044B1 (fr) 2002-04-17
DE59707041D1 (de) 2002-05-23

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