EP0437807B1 - Verfahren zum Wechseln des Wattewickels in wenigstens einem Kämmkopf einer Kämmaschine - Google Patents

Verfahren zum Wechseln des Wattewickels in wenigstens einem Kämmkopf einer Kämmaschine Download PDF

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Publication number
EP0437807B1
EP0437807B1 EP90125159A EP90125159A EP0437807B1 EP 0437807 B1 EP0437807 B1 EP 0437807B1 EP 90125159 A EP90125159 A EP 90125159A EP 90125159 A EP90125159 A EP 90125159A EP 0437807 B1 EP0437807 B1 EP 0437807B1
Authority
EP
European Patent Office
Prior art keywords
lap
nipper
roll
combing
new
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
EP90125159A
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German (de)
English (en)
French (fr)
Other versions
EP0437807A1 (de
Inventor
Oliver Wüst
Robert Demuth
Urs Keller
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
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0437807A1 publication Critical patent/EP0437807A1/de
Application granted granted Critical
Publication of EP0437807B1 publication Critical patent/EP0437807B1/de
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
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/08—Feeding apparatus

Definitions

  • the invention relates to a method and to an apparatus for carrying out the method for changing the cotton roll in at least one combing head of a combing machine, in which combing head the cotton is fed from a cotton roll to a pair of pliers and which, when the pliers are closed, protrudes beyond the clamping line of the pliers The beard is combed out and then, with the pliers open, torn from the wadding by a tear-off device and fed to a previously combed nonwoven comb.
  • the combing machine is switched off when the cotton tape in the combing head or in one of the combing heads has run off all or almost all of the wadding.
  • the shutdown can be done automatically by a detector device, e.g. can be controlled with a photocell or a light barrier, which detects the end of the cotton tape from the cotton roll or from one of the cotton rolls.
  • the empty winding tube is then removed and a new wad of cotton is placed by hand or by a transport device.
  • the beginning of the cotton tape from the new lap is then manually placed on the end of the cotton tape from the previous lap (which may have been torn to a suitable length) and connected to it by pressing, after which the machine can be restarted.
  • a device is known from US Pat. No. 2,559,074, wherein the outgoing cotton end is combed out over a comb before the application of a new cotton end, so that a defined cotton end is present. Then the prepared leaking cotton end overlapped with the newly adjusted and unprepared cotton end of the new reel and fed to the combing pliers for combing out. In the overlap area, thin or thick spots can occur, which can lead to undesired unevenness in the tape during the subsequent combing-out process and the subsequent tape formation.
  • the object of the invention is to provide a method of the type specified at the outset, with which the change of the cotton roll can be simplified and the downtime of the machine can be shortened, and which, if desired, can be carried out largely or completely automatically and the disadvantages of the known batching methods avoids.
  • the method takes advantage of the fact that in normal operation of the combing machine the cotton is separated from the fibers in each comb play, which fibers are combined with the comb-pulling belt by the tear-off device and torn off the cotton wool.
  • the combing machine is therefore brought to a standstill at a time after the tear-off device has torn off a fiber beard from the cotton wool.
  • the combing machine is started again so that the pliers close and return to their retracted position and the circular comb combs out the beginning of the cotton tape, which is then combined with the previously formed comb-pulling fleece by the tear-off device.
  • This combination (so-called soldering) is carried out in the same way as in normal operation of the combing machine, so that there are practically no fluctuations in mass or unevenness of the crest at the junction between the end of the previous cotton band and the beginning of the new cotton band. Such fluctuations and irregularities cannot be avoided in known methods.
  • the combing head shown schematically in FIGS. 1 to 4 has a carrying and drive device in the form of two parallel, rotatable winding rollers 1 and 2, which carry a cotton roll 3 during operation of the combing machine. Furthermore, the combing head has in the usual way a continuously rotatable circular comb 4, two tear-off cylinders 5, 6 which can be rotated with a mit step movement and a reciprocating frame which has a lower jaw frame 7 and two upper jaw arms 9 which are pivotally connected to it about an axis 8.
  • the lower clamp frame 7 carries a lower clamp plate 10, with which an upper clamp plate 11 carried by the upper clamp arms 9 cooperates.
  • an intermittently rotatable feed cylinder 12 is arranged in the tongs frame 7, which interacts with a cotton guiding element, which is shown as a guide plate 13.
  • the lower jaw frame 7 is hinged at its front end to front supports 14 which can be pivoted about the axis of the circular comb 4, and it is hinged at its rear end to tong pivot arms 15 which sit on a tong shaft 16.
  • the pliers 7, 9 are moved between the advanced position shown in FIG. 1, in which the pliers are open, and the pliers clamping line K on the lower pliers plate 10, just behind the tear-off cylinders 5, 6 stands, and the retracted position shown in Fig. 4, in which the pliers are closed, back and forth.
  • the wadding which is unwound from the wadding roll 3 by the rotation of the winding rollers 1, 2, runs between the feed cylinder 12 and the guide plate 13 via an inlet plate 18 articulated on the lower jaw frame 7 and is fed intermittently to the pinch clamping line K by the feed cylinder 12.
  • the pliers 7, 9 shown in FIG. 4
  • a front end section of the cotton is clamped between the edges of the pliers plates 10 and 11, and the fiber beard protruding from the pliers is combed out by the rotating circular comb 4.
  • the pliers 7, 9 are then moved into the advanced position shown in FIG.
  • the tear-off cylinders 5 and 6 are rotated backwards by a predetermined angle, so that the rear end of the previously formed comb fleece from the clamping point of the tear-off cylinders 5, 6 emerges and the front end of the fiber beard lying on the lower pliers plate 10 comes to lie on this rear end. Then the tear-off cylinders 5, 6 are rotated forwards in order to grasp the fiber beard and tear it off from the cotton lying in the pliers 7, 9, whereupon the pliers are moved back into their retracted position, etc.
  • a signal is generated on a line 20 which indicates that that a winding change has to be carried out.
  • the Wrapping changes on some or all of the machine's combing heads performed simultaneously.
  • the signal on the line 20, which is generated, for example, by a photocell 21, which determines the passage of the end of the cotton tape on the winding tube 19, is supplied to a control device 22.
  • the control device 22 to which a signal indicating the position of a moving part of the combing head is also fed on a line 23, for example from a position transmitter 24 assigned to the rotating circular comb 4, then actuates a shut-off device (contained in the control device 22 and not shown separately), which controls the drive unit 17 and brings the combing machine to a standstill at a time after the tear-off cylinders 5, 6 have torn off a fiber beard from the cotton lying in the pliers 7, 9 and the pliers 7, 9 have withdrawn from their advanced position.
  • the parts of the combing head then have approximately the positions shown in FIG. 2, the pliers 7, 9 are still somewhat open. (If necessary, the control device 22 could still operate a tong opener, not shown, which opens the tong 7, 9 a little further.)
  • an auxiliary drive 28 controlled by the control device 22 can be arranged, which disengages the winding rollers 1, 2 from the drive unit 17. So that the end section of the cotton can be sucked into the suction device 27 without hindrance, the control device 22 also controls a device (not shown) via a line 29, which increases the distance between the feed cylinder 12 and the cotton guide element shown as guide plate 13, for example in such a way that this device the feed cylinder 12 lifts in the position shown in Fig. 3.
  • the device controlled via the line 29 could, however, also be designed in such a way that it rotates the feed cylinder 12, so that it feeds the end section of the cotton to the suction device 27.
  • a modified embodiment of the suction device is shown with broken lines.
  • This modified suction device 30 has a suction opening 31 which, in the position of the suction device shown in FIG. 2, lies in the region of the cotton tape between the winding tube 19 and the pliers 7, 9 and sucks in the end section of the cotton wool at this point.
  • the empty winding tube 19 is also removed. This can be done with a transport device 32 in the form of a bracket with horizontal support rods 33, 34, 35, which is moved by a drive 37 shown in block form and controlled by the control device 22 via a line 36.
  • the transport device 32 moves a new cotton roll 3 and places it on the winding rollers 1, 2, as shown in FIG. 3.
  • the new cotton roll 3 is expediently a prepared cotton roll on which the beginning A of the cotton tape has a predetermined orientation. This remains during transport Orientation fixed because the cotton roll 3 rests with its peripheral surface on the support rods 33 and 34, so that the outermost turn of the cotton tape cannot relax.
  • the start A of the cotton tape is preferably already detached from the roll 3 and, as shown, lies protected on a drain plate 38 attached to the support rod 33.
  • it would also be possible to detach the start A of the cotton tape from the cotton roll 3 in the combing machine for example automatically controlled by the control device 22 with a suction roll or a blowing nozzle or a knife (not shown).
  • a movement means (not shown) controlled by the control device 22 moves a guide plate 39 from the rest position shown in FIG. 1 into the position shown in FIG. 3 next to the inlet plate 18.
  • the auxiliary drive 28 controlled by the control device 22 then rotates the winding rolls 1 again , 2 in order to unwind cotton tape from the new roll 3 until the start A of the cotton tape, which runs between the guide plate 39 and the inlet plate 18 and is sucked in by the suction device 27, has passed the clamping line K of the pliers 7, 9.
  • the transport of the cotton wool can additionally be supported by compressed air, which is blown from above between the two plates 39 and 18 by a nozzle, not shown, or by mechanical transport means, not shown.
  • the winding rollers 1, 2 are simply rotated through a predetermined angle until the start A has passed the clamping line K. This is particularly advantageous if a winding change is carried out simultaneously with several combing heads.
  • suction of the start A of the cotton tape against the clamping line K could 27 instead of the suction device the modified suction device 30 can also be used again if it has a second suction opening 40 in the lower part which, as shown in FIG. 3, can be brought into a position in front of the clamping line K of the pliers 7, 9.
  • the upper suction opening 31 would have to be closed.
  • the suction device 27 (or the suction device 30) is pulled back into the rest position according to FIG. 1 and switched off.
  • a knife or comb can be arranged in the suction opening of the suction device to cut off any excess length of the cotton tape that has passed the clamping line K of the pliers 7, 9, so that this excess length is sucked into the suction device.
  • the guide plate 39 is also removed from the inlet plate 18 again, and the distance between the feed cylinder 12 and the guide plate 13 is reduced again to the normal value.
  • the control device 22 then switches the drive unit 17 on again and allows the combing machine to start up again.
  • the pliers 7, 9 first go into their retracted position and close, as shown in FIG. 4.
  • control device 22 can briefly stop the combing machine in the position shown in FIG. 4 and let the circular comb 4 make one revolution or a few revolutions alone. The pliers 7, 9 then move into their advanced position according to FIG. 1, and the combing head continues to operate in normal operation.
  • rotatable rollers 41 and 42 are arranged on the support rods 33.1 and 34.1 of the transport device 32.1, on which the wad of cotton lies on top.
  • the carrier and drive device of the combing head consists of shafts 43 and 44 which are fixed to the frame and on which gears 45 and 46 are seated, with which gears 47 and 48 come into engagement on the rollers 41 and 42 when the transport device 32.1 is on the carrier and drive device is lowered.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP90125159A 1990-01-17 1990-12-21 Verfahren zum Wechseln des Wattewickels in wenigstens einem Kämmkopf einer Kämmaschine Expired - Lifetime EP0437807B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH140/90 1990-01-17
CH140/90A CH680670A5 (it) 1990-01-17 1990-01-17

Publications (2)

Publication Number Publication Date
EP0437807A1 EP0437807A1 (de) 1991-07-24
EP0437807B1 true EP0437807B1 (de) 1996-03-20

Family

ID=4180164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125159A Expired - Lifetime EP0437807B1 (de) 1990-01-17 1990-12-21 Verfahren zum Wechseln des Wattewickels in wenigstens einem Kämmkopf einer Kämmaschine

Country Status (5)

Country Link
US (1) US5095586A (it)
EP (1) EP0437807B1 (it)
JP (1) JP2730601B2 (it)
CH (1) CH680670A5 (it)
DE (1) DE59010219D1 (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH681894A5 (it) * 1990-10-22 1993-06-15 Rieter Ag Maschf
CH683191A5 (de) * 1991-05-22 1994-01-31 Rieter Ag Maschf Einrichtung zum Sammeln von Wattestücken, die in Kämmaschinen von Wattebändern abgetrennt werden.
EP0533618A1 (de) * 1991-09-17 1993-03-24 Maschinenfabrik Rieter Ag Automatischer Wickeltransport
CH683847A5 (de) * 1991-09-20 1994-05-31 Rieter Ag Maschf Gesteuerter Wickelwalzenantrieb einer Kämmaschine.
IT1260518B (it) * 1992-06-03 1996-04-09 Claudio Locatelli Procedimento e dispositivo per il controllo di una macchina pettinatrice
CH685945A5 (de) * 1992-10-16 1995-11-15 Rieter Ag Maschf Vorrichtung zum Wickelwechsel.
IT1283695B1 (it) * 1995-09-04 1998-04-23 Rieter Ag Maschf Macchina per avvolgere nastri a rotoli di tela
IT1290827B1 (it) * 1997-03-25 1998-12-11 Vouk Macchine Tessili Spa Piastra guida-teletta per pettinatrici
IT1317208B1 (it) * 2000-04-11 2003-05-27 Vouk S P A Officine Meccanotes Gruppo di comando per l'azionamento a passo del pellegrino deicilindri strappatori in una macchina pettinatrice
CN102586959A (zh) * 2012-01-22 2012-07-18 经纬纺织机械股份有限公司 一种生产棉断条的精梳装置
AU2013382947B2 (en) * 2013-03-22 2016-09-08 Essity Operations France A dispenser assembly
CN105173826B (zh) * 2015-07-14 2017-05-03 清远千百丽纺织印染有限公司 全自动纺织布卷布转移装置
CH717160A1 (de) * 2020-02-21 2021-08-31 Rieter Ag Maschf Kämmmaschine mit einer Watteführungsvorrichtung für einen automatischen Wickelansetzer.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191510394A (en) * 1915-07-17 1916-10-17 John William Nasmith Improvements in or relating to Combing Machines.
DE853571C (de) * 1942-02-14 1952-10-27 Alsacienne Constr Meca Vorrichtung zum Auflegen von Speisewickeln auf Flachkaemmaschinen
US2559074A (en) * 1945-05-17 1951-07-03 Terrell Mach Co Lap changer for combing machines
US2895177A (en) * 1953-10-12 1959-07-21 Tmm Research Ltd Textile combing machines
CH625564A5 (it) * 1977-08-24 1981-09-30 Rieter Ag Maschf
JPH081010B2 (ja) * 1986-08-08 1996-01-10 豊和工業株式会社 コ−マの運転制御方法
CH676249A5 (it) * 1988-11-03 1990-12-28 Rieter Ag Maschf
US5027475A (en) * 1989-11-03 1991-07-02 Rieter Machine Works, Ltd. Method and apparatus for automatic piecing of comber laps
CH679488A5 (it) * 1989-06-01 1992-02-28 Rieter Ag Maschf

Also Published As

Publication number Publication date
JPH04352818A (ja) 1992-12-07
DE59010219D1 (de) 1996-04-25
JP2730601B2 (ja) 1998-03-25
US5095586A (en) 1992-03-17
EP0437807A1 (de) 1991-07-24
CH680670A5 (it) 1992-10-15

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