EP0775223A1 - Dispositif de peignage de coton ou de fibres cotonneuses - Google Patents

Dispositif de peignage de coton ou de fibres cotonneuses

Info

Publication number
EP0775223A1
EP0775223A1 EP95926831A EP95926831A EP0775223A1 EP 0775223 A1 EP0775223 A1 EP 0775223A1 EP 95926831 A EP95926831 A EP 95926831A EP 95926831 A EP95926831 A EP 95926831A EP 0775223 A1 EP0775223 A1 EP 0775223A1
Authority
EP
European Patent Office
Prior art keywords
tear
roller
comb
combing
movement
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
EP95926831A
Other languages
German (de)
English (en)
Other versions
EP0775223B1 (fr
Inventor
Andreas Olbrich
Martin Leifeld
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.)
CSM Saechsische Spinnereimaschinen GmbH
Original Assignee
CSM Saechsische Spinnereimaschinen 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
Priority claimed from DE19523949A external-priority patent/DE19523949C2/de
Application filed by CSM Saechsische Spinnereimaschinen GmbH filed Critical CSM Saechsische Spinnereimaschinen GmbH
Publication of EP0775223A1 publication Critical patent/EP0775223A1/fr
Application granted granted Critical
Publication of EP0775223B1 publication Critical patent/EP0775223B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D01G19/26—Driving arrangements
    • 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
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously
    • D01G19/20—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously operating to draw-off fibres intermittently

Definitions

  • the invention relates to a device for combing cotton or cotton-like fibers with a pair of pliers for holding the fibers during grooming, with a circular comb which has a comb segment for combing the fibers held by the pliers, with a substantially positionally stable pull-out device for pulling out ⁇ hen the combed by the circular comb fibers from the template, consisting of at least a lower tear-off roller and an axially parallel upper tear-off roller, with a fixed comb for combing the extracted fibers on the back and with a pull-off device for the comb pull.
  • the tear-off roller pair consisting of a lower and an upper tear-off roller, is immediately adjacent to the pliers and the circular comb.
  • the lower tear-off roller is located between the path of movement of the comb tips of the circular comb and the upper tear-off roller and, together with the upper tear-off roller, forms the clamping gap for the comb pull.
  • the pliers assembly is swinging in two directions. On the one hand, it is moved at a distance from the pair of tear-off rollers against the path of movement of the comb tips of the circular comb. In this position, the fiber beard is combed through the circular comb.
  • the pliers apparatus is raised as a unit so that the just combed fiber beard reaches the nip of the tear-off roller pair.
  • the pliers also approach the tear-off nip horizontally.
  • the section of the sliver fed back at this point is overlapped with the tips of the new, combed fiber beard, pressed in the nip of the tear-off rollers and pulled in the pull-off direction by the tear-off rollers.
  • the fixed comb is inserted into the end of the newly combed fiber beard and combs out this free piece of fiber.
  • the combed fiber beard is torn off by the retraction movement of the tongs and the pulling movement of the tear-off roller pair, and a new fiber beard is fed through the feed roller on the tongs, clamped and brought into the combing position to the circular comb.
  • Another disadvantage of the known device is that an uncontrolled formation of folds occurs between the pair of tear-off rolls and the take-off rolls due to the vocational movement of the tear-off rolls, which additionally leads to disruptions in the combing process.
  • EP 0 406 589 proposed that the pliers apparatus and the tear-off rollers be arranged in a stable position in the circumferential area of the circular comb.
  • An additional transfer pliers should grasp the one-sided combed fiber beard in the area of the pliers, clamp it and feed it to the nip of the tear-off roller pair over the movement path of the comb tips of the circular comb.
  • the rear end of the fiber beard is additionally combed by the segment of the circular comb.
  • Such a device is only apparently advantageous. Between two passes of the segment of the circular comb, so many, complicated and complicated movements due to the arbitrary movements of the fiber must be carried out by the transfer pliers that the speed of the combing machine must be additionally reduced compared to the combing machine described at the beginning.
  • the invention is based on the object of creating a device for combing cotton or cotton-like fibers, in which the number and the mass of the vibrating moving machine parts is significantly reduced and the fiber comb combed by the circular comb between the combing process and the soldering process exactly and with high precision can be performed.
  • the setting options with regard to the degree of overlap, the tear-off length and the feed speed should also be given while the machine is running.
  • Another object of the invention is to guide the ridge between the tear-off rollers and the take-off rollers in such a way that folds are avoided.
  • this object is achieved by the features defined in claim 1.
  • This configuration makes it possible to place the upper tear-off roller very close to the path of movement of the comb tips of the circular comb.
  • the clamping gap is thus very close to the area in which the fiber beard has been combed out by the circular comb.
  • the returned end of the comb is held by the air flow following the comb segment on the lower take-off roller in such a way that a large open angle is available for inserting the newly combed fiber beard.
  • the entire forceps assembly can basically be arranged in a stable position.
  • the masses to be moved are reduced to a minimum.
  • the setting of the tear-off distance can be easily adjusted by moving the pliers even while the machine is running. The same applies to the setting of the delivery quantity per comb play by the feed rollers.
  • the mechanical movements to be carried out between two passages of the comb segment are limited solely to the oscillating movement of the lower tear-off roller, which can be carried out according to optimized laws of movement.
  • this new device enables the combing machine to work at a significantly higher speed with an extremely low device outlay.
  • the design of the device according to claim 5 enables, on the one hand, an optimization of the vocational step movement of the tear-off roller and a movement of the second lower tear-off roller which is coordinated therewith to guide the sliver to the take-off device.
  • Claim 6 defines the optimum drive device for the pivoting movement of the lower tear-off rollers.
  • the arrangement of claim 7 also allows control of the uniformity of the ridge according to a manually or automatically specified program.
  • Claim 10 defines the criteria which are to be taken into account for the definition of the form of movement of the second lower tear-off roll with regard to its oscillating movement around the upper take-off roll in the case of a comb-pull loop which is stored free of folds.
  • FIG. 1 shows a cross section through the device according to the invention immediately after the soldering process has taken place before the tear-off process
  • Fig. 5 a schematic representation of a
  • Fig. 6 a schematic one-piece device for adjusting the tear-off distance. The basic structure of the device is to be described with reference to FIG. 1.
  • the circular comb 1 is rotatably supported in a conventional manner in the frame of the combing machine and is driven in a manner known per se.
  • the circular comb 1 has a comb segment, the comb tips of which run on a circular path.
  • the pliers 3 of the pliers 3, 4 are arranged close to the path of the comb tips above the axis of the circular comb 1. These pliers 3 are preferably adjustable in the circumferential direction of the circular comb 1 and radially to the same.
  • This lower tong 3 is associated in the usual way with a vibrating movable upper tong 4 which has a clamping surface for the fiber beard to be combed and a deflection nose which is directed towards the path of movement of the comb tips.
  • the feed rollers 15 are assigned to the lower and upper pliers 3, 4 in a known manner. They are moved step by step depending on the respective comb play and the respective delivery quantity per comb play.
  • the upper tear-off roller 5 is mounted fixed to the frame near the movement path of the upper tongs 4 and near the movement path of the comb tips. Their circumference almost affects the path of movement of the comb tips of the circular comb l.
  • This upper tear-off roller 5 is assigned at least one lower tear-off roller 7, which is pivotably mounted on a lever about the axis of the upper tear-off roller 5. Both tear-off rollers 5, 7 together form the nip required for the canon 8 for the soldering process.
  • the lower tear-off roller 7 can be moved from a position in which it is completely outside the path of movement of the comb tips of the circular comb 1 to a position within the path of movement of the comb tips, close to the clamping surfaces of the lower pliers 3.
  • the second lower tear-off roller 6 (it could also be referred to as a guide roller) can also be pivoted about the axis of the upper tear-off roller 5; via this tear-off roller 6, the ridge pull 8 is defined between the adhesive belt gap of the tear-off rollers 5, 7 and the pull-off device 9 and wrinkle-free.
  • the two lower tear-off rollers 6, 7 can be supported on a common pivot lever.
  • the lower tear-off roller 7 is outside the path of movement of the comb tips of the round comb 1.
  • the ridge 8 is held at its rear end in the nip of the tear-off rollers 5, 7.
  • the ridge 8 between tear-off rollers 5, 7 and the take-off device 9 is looped over the second lower tear-off roller 6 in a wrinkle-free and untensioned form.
  • the combing segment clears the way for the lower tear-off roller 7. 3, it swings over the now free path of movement of the comb tips under the upper tear-off roller 5.
  • Both fiber whiskers are superimposed in a defined manner and are connected to one another by pressure (soldered) by means of the clamping gap which moves towards the overlap section due to the rolling movement of the tear-off roller 7.
  • the tear-off rollers 5, 7 then begin in this position (according to FIG. 1) with their rotary movement in the take-off direction and with the simultaneous backward swinging movement the further pulling off of the combed fiber beard.
  • the fixed comb 10 is inserted around the upper tear-off roller 5 with its tips into the fiber beard and combs out the rear end of this fiber beard.
  • the lower tear-off roller 7, which is decisive for the combing process, is mounted in the same swivel element as the second lower tear-off roller 6, which is preferably used for tensioning the comb 8 between the clamping gap (5, 7) and the pull-off device 9.
  • the drive movement is a drive Koppelge ⁇ of a crank (angle. ⁇ 0th.) Derived on the circular comb. 1
  • the oscillating movement generated is modified by a special arrangement of another four-bar linkage so that a movement diagram for the oscillation angle. 4 is reached.
  • the combing period can be extended far compared to the soldering period. This corresponds to the textile technology requirements for the optimal combing process.
  • the course of y ⁇ R in the diagram (FIG. 4) represents the distance function from the clamping line of the tear-off rollers 5, 6 and the clamping line of the take-off rollers 9 movement of the comb between the tear-off rollers necessary for wrinkle-free guiding of the comb pull fg £ S '
  • the amount of conveyance of the upper tear-off roller 5 required for the combing process can be determined.
  • the programmable electric drives available today enable optimum movement of the described working elements with minimal mechanical effort.
  • both the oscillating movement and the rotary movement of the tear-off rollers 5, 6, 7 can be carried out by means of computer-controlled stepping or servo motors.
  • the arrangement of the pliers 3, 4 fixed to the frame makes it possible to set the tear-off length within relatively large limits even during the combing process.
  • the pliers 3, 4 are guided in a swinging manner on the link 13 on a rocker 14 and are supported on the frame of the machine in an adjustable manner with the aid of a spindle-nut gear 11, 12.
  • the spindle-nut gear 11, 12 can be operated by hand or by means of a controlled motor (not shown).
  • the feed rollers 15 can be mounted on the frame of the machine in a stationary manner, regardless of the tong apparatus 3, 4. It can then be easily driven by a computer-controlled stepper or servo motor.
  • the uniformity can be determined and regulated according to a correctable program.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne un dispositif permettant de peigner du coton ou des fibres cotonneuses, qui comprend une pince pour maintenir les fibres pendant le peignage, un peigne circulaire présentant un segment servant à peigner les fibres maintenues par la pince, un appareil d'arrachage sensiblement stable en place et servant à enlever du collecteur les fibres peignées par le peigne. Cet appareil d'arrachage comprend au moins un cylindre d'arrachage inférieur et un cylindre d'arrachage supérieur parallèle à l'axe du précédent. Le dispositif de peignage comprend également un peigne fixe servant à peigner l'arrière des fibres enlevées, ainsi qu'un dispositif servant à évacuer le ruban peigné. L'invention vise à réduire le nombre d'éléments mobiles, à augmenter la vitesse de travail de la peigneuse et à améliorer la qualité du ruban peigné. A cet effet, le dispositif se présente de manière à ce que le cylindre d'arrachage supérieur (5) soit placé à proximité de la trajectoire des pointes du segment de peignage du peigne circulaire (1). Le cylindre d'arrachage inférieur (7) de l'appareil d'arrachage peut quant à lui pivoter autour de l'axe du cylindre d'arrachage supérieur (5), selon une loi de mouvement prédéfinie, sur la trajectoire des pointes du peigne circulaire (1).
EP95926831A 1994-08-10 1995-07-28 Dispositif de peignage de coton ou de fibres cotonneuses Expired - Lifetime EP0775223B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4428296 1994-08-10
DE4428296 1994-08-10
DE19523949A DE19523949C2 (de) 1994-08-10 1995-07-05 Vorrichtung zum Kämmen von Baumwolle oder baumwollähnlichen Fasern
DE19523949 1995-07-05
PCT/DE1995/000994 WO1996005342A1 (fr) 1994-08-10 1995-07-28 Dispositif de peignage de coton ou de fibres cotonneuses

Publications (2)

Publication Number Publication Date
EP0775223A1 true EP0775223A1 (fr) 1997-05-28
EP0775223B1 EP0775223B1 (fr) 2000-05-10

Family

ID=25939082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95926831A Expired - Lifetime EP0775223B1 (fr) 1994-08-10 1995-07-28 Dispositif de peignage de coton ou de fibres cotonneuses

Country Status (4)

Country Link
EP (1) EP0775223B1 (fr)
JP (1) JPH10504069A (fr)
CN (1) CN1159838A (fr)
WO (1) WO1996005342A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502007006202D1 (de) * 2006-07-25 2011-02-17 Rieter Ag Maschf Kämmmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE499899C (de) * 1926-12-07 1930-06-14 Carlo Schleifer Abnahmevorrichtung fuer gekaemmte Faserbaerte von Kaemmaschinen
DE963671C (de) * 1952-05-28 1957-05-09 Deutscher Spinnereimaschb Ingo Antriebsvorrichtung fuer die schwingenden Abzugswalzenpaare von Flachkaemmaschinen
FR1243942A (fr) * 1959-09-11 1960-10-21 Alsacienne Constr Meca Dispositif d'arrachage de peigneuse rectiligne
EP0450360A1 (fr) * 1990-04-05 1991-10-09 Maschinenfabrik Rieter Ag Appareil d'arrachage dans une machine de peignage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9605342A1 *

Also Published As

Publication number Publication date
JPH10504069A (ja) 1998-04-14
EP0775223B1 (fr) 2000-05-10
CN1159838A (zh) 1997-09-17
WO1996005342A1 (fr) 1996-02-22

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