EP0366048A1 - Procédé et dispositif pour surveiller les préhension et relâchement de tous les tubes respectivement de toutes les bobines d'un appareil d'échange automatique de bobines d'un métier à filer à anneaux ou d'un métier à retordre à anneaux - Google Patents

Procédé et dispositif pour surveiller les préhension et relâchement de tous les tubes respectivement de toutes les bobines d'un appareil d'échange automatique de bobines d'un métier à filer à anneaux ou d'un métier à retordre à anneaux Download PDF

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Publication number
EP0366048A1
EP0366048A1 EP89119656A EP89119656A EP0366048A1 EP 0366048 A1 EP0366048 A1 EP 0366048A1 EP 89119656 A EP89119656 A EP 89119656A EP 89119656 A EP89119656 A EP 89119656A EP 0366048 A1 EP0366048 A1 EP 0366048A1
Authority
EP
European Patent Office
Prior art keywords
light barrier
area
gripping members
light
full
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
EP89119656A
Other languages
German (de)
English (en)
Other versions
EP0366048B1 (fr
Inventor
Oliver Dipl.-Phys. Pütz
Herbert Dipl.-Ing. König (FH)
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 EP0366048A1 publication Critical patent/EP0366048A1/fr
Application granted granted Critical
Publication of EP0366048B1 publication Critical patent/EP0366048B1/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
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1616—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material characterised by the detector
    • D01H13/1633—Electronic actuators
    • D01H13/165—Photo-electric sensing means
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1616—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material characterised by the detector
    • 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

Definitions

  • the invention relates to methods and devices for monitoring the detection or release of all sleeves or bobbins of an automatic bobbin changing device of a ring spinning or twisting machine which simultaneously pulls a plurality of full bobbins or empty sleeves from the spindles or holding pins by means of gripping members at least one light barrier running through the area of the full coils to be withdrawn, which is interrupted by a non-withdrawn or not released coil or sleeve for the purpose of an error signal.
  • the present invention has for its object to provide methods and devices for monitoring the detection or release of all sleeves or coils on an automatic bobbin changing device according to the preamble of claim 1, which are able to avoid these aforementioned errors and thus the To push down idle times.
  • the The light barrier runs through an area that was occupied by the coils or sleeves before they were removed or released.
  • at least one light barrier is provided, which runs through the area of the empty sleeves or full coils to be released by the gripping members or to be removed from holding pins or spindles and is interrupted when a sleeve or coil is not released or not removed, a signal is triggered and the further changing process interrupts. This advantageously significantly reduces idle times and prevents damage to the changing device or the machine.
  • the light barrier is activated after the empty tubes or full coils must be released or removed and before the gripping members again take empty sleeves or full spools.
  • gripping members are provided which detect both the empty tubes and the full bobbins, a light barrier is sufficient, which alternately scans the empty tubes or the full bobbins, depending on the phase of the exchange process. If, on the other hand, separate gripping members are provided for empty sleeves and for full bobbins in the changing device, a separate light barrier must be provided for each row of gripping members.
  • the light barriers must run through areas that are occupied by the empty tubes or full coils to be scanned, but are empty after removal.
  • the light barrier can be arranged stationary on the path of movement of the empty sleeves or full coils or on the component carrying the gripping members.
  • both the transmitter and the receiver can be arranged on a displacement device with which these parts forming the light barrier can be displaced into the areas to be scanned on the component carrying the gripping members. Furthermore, there is the possibility of making the gripping members and a light barrier, which is movable anyway, so movable that it can guide the light barrier into the area of the full coils to be removed.
  • the effective area of a light barrier can be shifted without shifting its transmitter and receiver in that the light beam is shifted parallel to itself by mirrors arranged in pairs, which can be folded out of the light beam in pairs.
  • mirrors arranged in pairs, which can be folded out of the light beam in pairs.
  • a transmitter and a receiver can each be arranged in a stationary manner on the machine frame in such a way that the light barrier they form runs through the area of the full coils located on the spindles.
  • this light barrier can be displaced parallel to itself through empty areas defined by the gripping elements or full coils detected by the gripping elements. In this case, these empty tubes or full spools are scanned on the gripping members in a position that is fixed relative to the machine frame.
  • a stationary light barrier can run on the machine frame through the area of the full coils to be removed.
  • the component carrying the gripping members contains a light barrier which runs through the area of the empty sleeves gripped. By means of mirror pairs, this light barrier can be installed parallel to itself through the area of the full coils held by other gripping members.
  • the light barriers work with visible or invisible light.
  • the use of a laser beam of lower power offers great advantages due to its good bundling.
  • the possibility of using optical fibers in the area of the light barrier is possible.
  • FIG. 1 shows a side view of a ring spinning machine 1 with a drive frame 2 and an end frame 3, which is equipped with a gripper bar 4 which can be raised and lowered via a schematically illustrated scissor system 6.
  • a plurality of spindles 7 arranged in two rows are located on spindle banks 8.
  • a transmitter 11 and a receiver 12, which form a light barrier 10, are arranged on the gripper bars 4 carrying gripper members 5. Is after inserting empty sleeves on the spindles 7, a sleeve 9 'has not been released by the gripping members 5 of the gripper bar 4, it is located in the area of the light barrier 10, whereby an activation of a control device takes place and the changing process is interrupted.
  • Fig. 2 shows a side view of a ring spinning machine 1 with a light barrier 10, the transmitter 11 and receiver 12 arranged on the machine frame 2 and 3 and by means of a threaded spindle 14 driven by a motor 15 from a position in which they the area of the Spindles 7 attached full coils monitored, can be shifted into a position in which it monitors the area of the empty sleeves or full coils held by the gripping members of the gripper bar 4.
  • the movement of the transmitter 11 or receiver 12 can take place synchronously, for example by means of stepper motors; however, the drive motors of the threaded spindles 14 can also be asynchronous motors, which transmitters 11 and receivers 12 each move to end positions, which are defined by end stops or limit switches. Other mechanical elements for defining the end positions are also possible.
  • FIG. 3 shows a plan view of a two-sided ring spinning machine 1 with only one transmitter 11 and one receiver 12, the light barrier 10 of which covers the areas to be monitored on both machine sides by means of mirrors 16, 17, 18 and I9.
  • the mirrors 16 and 17 are designed to be pivotable. This results in a significant reduction in effort in a simple manner.
  • FIGS. 4 to 8 each show sections through the gripper bar 4 and the spindle bench 8 according to FIG. 2.
  • An area is defined over the upper ends of the spindles 7, but still within the outline of full bobbins 13 placed on the spindles a light barrier 10 runs. In this area A, the withdrawal of full bobbins 13 from the spindles 7 can be checked.
  • an area B Under the gripping members 5, but still within the outline of empty sleeves 9 held on the gripping members, is an area B. defined, through which a light barrier 10 also runs. In this area B, the release of empty sleeves 9 by the gripping members 5 can be checked by means of the light barrier.
  • an area C is defined through which a light barrier 10 runs. In this area, the release of full coils 13 can be checked by the gripping members 5.
  • the areas B and C coincide with respect to the gripper bars.
  • the light barrier 10 defined by the transmitter 11 and the receiver 12 can be moved in the embodiment according to FIG. 4 over the distance indicated by the arrow I between the two areas A and B / C.
  • light barriers are provided for both areas A and B / C on the stationary machine frame, which are formed by two transmitter / receiver pairs 11, 12 and 11 ', 12'.
  • the area B / C can only be checked in a specific position of the gripper bar 4, in which this area is located within the machine frame of the ring spinning machine 1.
  • the transmitter 11 Sender and the receiver 12 ⁇ forming the light barrier in the area B / C are fastened to the gripper bar 4 via an arm 21.
  • the light barrier for the area B / C is connected to the gripper bar 4; A separate light barrier is provided for area A.
  • a gripper bar 4 with separate gripping members 5 or 5 'for full spools 13 or empty sleeves 9 is provided. Accordingly, the three areas A, B and C are to be monitored individually, which in the exemplary embodiment is carried out with a single light barrier with transmitter 11 and receiver 12 in the machine frame or on the gripper bar 4, which can be moved according to the arrows III.
  • Fig. 9 shows a side view of a spindle bank 8 and a gripper bar 4 with gripping members 5.
  • a transmitter 11 and a receiver 12 are used, the light barrier by four mirrors 16 ', 17', 18 'and 19' between the area A and the area B / C is relocatable.
  • the two mirrors 16 'and 17' can be folded out of the beam path.
  • both the withdrawal of full bobbins 13 from spindles 7 and the release of empty tubes and full bobbins from the gripping members 5 are monitored by a single transmitter 11 and a single receiver 12.
  • FIG. 10 shows a schematic cross section through a ring spinning machine 1 with transmitter 11 and receiver 12 arranged on the machine frame for the area B / C.
  • FIG. 11 shows a cross section through a ring spinning machine 1 with transmitter 11 or swivel bar 4 shown here. Receiver 12 for the area B / C.
  • the corresponding light barriers in this case again run through areas which are occupied by the empty sleeves or full coils to be scanned, but are empty after removal. Since the bobbin changing device in the embodiment according to FIGS. 10 and 11 operates in such a way that the same gripping members grip both empty sleeves 9 and full bobbins 13, regions B and C again coincide.
  • FIG. 12 relates to a schematic representation of the arrangement of transmitter 11 and receivers 12 for two light barriers for areas A and B / C or three light barriers for areas A, B and C on the stationary machine frame.
  • FIG. 13 is a schematic illustration of an embodiment in which the three areas A, B and C can be scanned by means of only one displaceable transmitter 11 and one receiver 12.
  • a light barrier 10 can be displaced between areas B and C by means of a pair of transmitters / receivers 11, 12 via mirrors.
  • This transmitter / receiver pair is arranged, for example, on the gripper bar 4.
  • a light barrier 10 ' is provided in this embodiment which is arranged in a fixed position on the machine frame.
  • 15 contains a schematic representation of a solution with which the light barrier 10 can be moved into all three areas A, B and C by means of six mirrors, four of which can be swung out of the beam path, with only one transmitter / receiver pair.
  • Figures 16 and 17 contain schematic representations of solutions in which the cheaper part of the transmitter / receiver pair 11, 12 dispenses with the mirrors and this part is provided in multiple numbers compared to the more expensive part. 16 is based on the embodiment according to FIG. 4, FIG. 17 on the embodiment according to FIG. 15. Transmitter and receiver can be interchanged, the transmitter 11 being the more expensive part when using lasers.
  • 18 I shows a schematic side view of an embodiment of the invention, from which the arrangement of the areas A, B, C and D can be seen.
  • the area A over the spindle tips the area D lies over the holding pin for the empty sleeves 9 ⁇ , both areas being stationary with respect to the machine frame.
  • Area B lies under the gripping pins for the empty sleeves;
  • area C lies under the gripping pins for the full bobbins; both areas are therefore stationary with respect to the gripper bar 4.
  • areas B and C coincide.
  • Fig. 18 II a to i shows the individual process steps for monitoring the detection or release of empty tubes or full bobbins of an automatic bobbin changing device.
  • the gripper bar 4 has moved out of its rest position under the spindle bank 8 over the Spindles moves and is in the process of grasping the full bobbins 13 with the gripping members 5 and pulling them off the spindle 7 with the aid of the scissors system 6 until the position according to FIG. 18 II b is reached.
  • Below the ring bench 8 is a new empty sleeve 9 ', which is arranged on a support pin 20' mounted on a conveyor belt.
  • the light barrier in area A is used to check whether all the full bobbins 13 have actually been removed from the spindles 7. If this is the case, the full coils 13 are moved downward according to FIG. 18 II c and, according to FIG. 18 II d, are pushed onto the holding pins 20.
  • the light barrier in area C checks whether all full bobbins have been released and placed on their holding pins 20 on the conveyor belt.
  • the gripping members 5 take the empty sleeve 9 ⁇ and pull them from their retaining pins 20 '. Now it is checked by the light barrier in area D whether all empty sleeves 9 'have been tightened by their holding pins 20'. If this is the case, the empty sleeves 9 ⁇ are guided in the direction of the arrow into the area above the spindles 7.
  • area D is defined via the holding pin 20 'for the empty sleeves 9 ⁇ , but still within the outline of empty sleeves held on these holding pins, which is also penetrated by a light barrier 10. With this light barrier, the withdrawal of empty sleeves 9 'from the holding pin 20' can be monitored.
  • This area D assumes that the holding pin 20 'for the empty sleeves 9' and the holding pin 20 for the full spools 13 are arranged in separate, laterally offset rows.
  • FIG. 18 III there is also the possibility that a further area E, monitored by a light barrier, is used, which lies in the zone which could be coated by an incorrectly pulled out spindle upper part 30. This also prevents damage to the changing device or other machine elements in a simple manner.
  • optical waveguides 23, 24 and 25 are used in order to monitor the corresponding areas via light barriers 10 in order to carry out a correct changeover process.
  • These optical waveguides are arranged within an optical waveguide channel, the optical waveguides being at least two-wire.
  • One wire works with a light source, not shown, and the other with a photo sensor. The other ends of the two combined wires are directed from the transmitter area 11 to the receiver area 12.
  • lasers are suitable for this purpose.
  • This system consists of the components light source, light-guiding medium, transmitter and receiver.
  • a coherent light source for example a helium-neon laser, can be used as the light source.
  • Optical fibers with high transmission in the visible spectral range preferably single-mode glass fibers with a small core diameter, are used as the light-conducting medium.
  • An optic serves as a transmitter, which bundles and emits the light emerging from the optical fiber.
  • Silicon photo detectors with a large active area and downstream amplifier electronics are used as receivers. This results in the following functionality:
  • the light emerging from the laser is split into several partial beams by means of beam splitter plates.
  • Each partial beam meets an optic that maps the light onto the end surface of a glass fiber core.
  • the laser light is transmitted through glass fibers of different lengths until it emerges from the fiber at its destination.
  • the light now emerging under a very specific fiber-specific opening angle is refocused or parallelized with the aid of further optics, in the simplest case an achromatic lens.
  • the beam is expanded and its beam divergence is reduced.
  • the expanded beam now bridges the work area to be monitored and finally hits the receiver. This effects a switching function as soon as the light beam is covered by an object, for example an empty sleeve 9 or a full coil 13.
  • the laser light barrier system is used to monitor the changing device on the ring spinning machine. In this case, the withdrawal of full bobbins 13 or the placement or dropping of empty sleeves 9 is monitored. This process takes about 5 minutes. During this time, the laser is in the operating phase. However, the laser beam is only released for a few seconds, which the measuring process requires.
  • Transmitter 11 and receiver 12 are installed at the usual positions and provided with cover panels. On the one hand, these cover panels are intended to suppress extraneous light and, on the other hand, to prevent people from looking into the laser beam.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP89119656A 1988-10-25 1989-10-23 Procédé et dispositif pour surveiller les préhension et relâchement de tous les tubes respectivement de toutes les bobines d'un appareil d'échange automatique de bobines d'un métier à filer à anneaux ou d'un métier à retordre à anneaux Expired - Lifetime EP0366048B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836330A DE3836330A1 (de) 1988-10-25 1988-10-25 Verfahren und vorrichtung zum ueberwachen des erfassens bzw. freigebens aller huelsen bzw. spulen einer selbsttaetigen spulenwechselvorrichtung an einer ringspinn- oder -zwirnmaschine
DE3836330 1988-10-25

Publications (2)

Publication Number Publication Date
EP0366048A1 true EP0366048A1 (fr) 1990-05-02
EP0366048B1 EP0366048B1 (fr) 1994-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119656A Expired - Lifetime EP0366048B1 (fr) 1988-10-25 1989-10-23 Procédé et dispositif pour surveiller les préhension et relâchement de tous les tubes respectivement de toutes les bobines d'un appareil d'échange automatique de bobines d'un métier à filer à anneaux ou d'un métier à retordre à anneaux

Country Status (4)

Country Link
US (1) US5016433A (fr)
EP (1) EP0366048B1 (fr)
JP (1) JPH02160939A (fr)
DE (2) DE3836330A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104233535A (zh) * 2014-08-28 2014-12-24 湖州丝葳纺织有限公司 一种细纱管自动填装装置

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DE4037312C2 (de) * 1990-11-23 1994-03-10 Zinser Textilmaschinen Gmbh Vorrichtung zum Greifen einer leeren Hülse oder einer vollen Spule
DE4037880C2 (de) * 1990-11-28 1994-06-30 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zum Überwachen des Spulenwechselvorganges bei einer Spinnereimaschine
DE4132243C2 (de) * 1991-09-27 1994-06-16 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zum Betreiben einer Ringspinn- oder-zwirnmaschine
DE4224436C2 (de) * 1992-07-24 1996-11-14 Zinser Textilmaschinen Gmbh Doppelseitige Ringspinnmaschine mit Spulenwechselvorrichtung
DE4421778C2 (de) * 1994-06-22 1996-11-14 Zinser Textilmaschinen Gmbh Vorrichtung zum selbsttätigen Zu- oder Abführen voller Spulen oder leerer Hülsen für eine Textilmaschine
DE19631753C2 (de) * 1996-08-06 1999-08-12 Zinser Textilmaschinen Gmbh Verfahren zur Kollisionsüberwachung eines bewegbaren Elements einer Spinnereimaschine
DE19742154C2 (de) * 1997-09-24 2002-03-07 Zinser Textilmaschinen Gmbh Bestückungsüberwachung an einer Vorspinnmaschine
JP2002129434A (ja) * 2000-10-17 2002-05-09 Toyota Industries Corp 単錘駆動式紡機の管替装置の異常検出方法及び装置
CN104005129B (zh) * 2014-06-09 2016-02-10 宜宾惠美精纺科技股份有限公司 细纱机集体落纱智能检测控制系统

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Publication number Priority date Publication date Assignee Title
CN104233535A (zh) * 2014-08-28 2014-12-24 湖州丝葳纺织有限公司 一种细纱管自动填装装置

Also Published As

Publication number Publication date
US5016433A (en) 1991-05-21
DE3836330A1 (de) 1990-04-26
JPH02160939A (ja) 1990-06-20
EP0366048B1 (fr) 1994-06-01
DE58907768D1 (de) 1994-07-07

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