EP2307597B1 - Kämmvorrichtung zum kämmen eines fasermaterials - Google Patents

Kämmvorrichtung zum kämmen eines fasermaterials Download PDF

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Publication number
EP2307597B1
EP2307597B1 EP09775743A EP09775743A EP2307597B1 EP 2307597 B1 EP2307597 B1 EP 2307597B1 EP 09775743 A EP09775743 A EP 09775743A EP 09775743 A EP09775743 A EP 09775743A EP 2307597 B1 EP2307597 B1 EP 2307597B1
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EP
European Patent Office
Prior art keywords
combing
plate
cylinder
machine frame
nipper
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.)
Active
Application number
EP09775743A
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German (de)
English (en)
French (fr)
Other versions
EP2307597A1 (de
Inventor
Ueli Stutz
Daniel Sommer
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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Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP2307597A1 publication Critical patent/EP2307597A1/de
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Publication of EP2307597B1 publication Critical patent/EP2307597B1/de
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    • 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
    • D01G19/16—Nipper mechanisms
    • 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
    • D01G19/10—Construction, mounting, or operating features of combing elements

Definitions

  • the invention relates to a combing device for combing a fiber material, which is fed to a stored in a machine frame nipper unit having a lower and upper nipper plate, wherein the upper nipper plate is movably mounted with respect to the lower nipper plate, to form a nip and for generating a clamping force is acted upon by a loading device and with a disposed within the nipper unit feeding means for feeding the fiber material to the nip of the nipper unit, which is assigned below a rotatably mounted in the machine frame Kämmzylinder which is provided on its circumference with at least one Kämmsegment and with a the tongs unit associated tear-off.
  • a reciprocating nipper unit is used, which is above a rotating combing cylinder (also called “round comb") and which passes the combed end of a tuft on a subsequent Abreisswalzencru.
  • the nipper unit consists of a back and forth swinging lower pliers plate on which pivot arms an upper pliers plate is pivotally mounted.
  • the pivoting movement of the upper pliers plate results from the swinging movement of the lower pliers plate, with closed pliers, the clamping force in the region of the pliers lips of upper and lower pliers plate is produced by spring-loaded arms, which are hinged on one side to pivot arms of the upper pliers plate and on the other hand on an eccentric shaft, which is stored in the machine frame.
  • spring-loaded arms which are hinged on one side to pivot arms of the upper pliers plate and on the other hand on an eccentric shaft, which is stored in the machine frame.
  • a similar design is from the DE-PS 218606 known, wherein the movement of the upper tong plate is also controlled by a separately mounted cam gear.
  • the tearing of the tuft is done by a separately arranged pair of tearing rollers.
  • the invention is therefore based on the object, the nipper unit of a combing machine form with his drive so that it is possible that the previously achieved Kammspielbread and thus the production quantities can be significantly increased. Furthermore, the oscillations and also the noise development in the region of the nipper unit should also be kept constant or even reduced at higher comb rates with the proposed load device.
  • the upper tong plate be provided with guide elements, which are guided for direct control of their movement on cams which are rotatably mounted on the axis of rotation of the combing cylinder and the position of the lower tong plate during a comb play - in Direction of the tear-off means - remains constant.
  • the control of the movement of the upper tong plate is removed directly from the rotational movement of the combing cylinder, while the lower tong plate in the machine frame remains stationary with respect to the tear-off.
  • the lower tong plate can perform a slight vertical movement of its tong lip during the tearing operation to better transfer the tuft to a subsequent tearing device.
  • the lower tong plate can remain completely immobile in position during comb play.
  • the upper tong plate is provided with lateral pivot arms via which it is pivotally mounted about an axis of rotation in the machine frame or on a tong frame of the lower tong plate, wherein the rollers are arranged on the pivot arms at a distance from the axis of rotation.
  • the lower tong plate is mounted in the machine frame such that it occupies a substantially constant position during a comb play and the tear-off means is formed of a tear-off, which to form a nip in the direction of, on the circumference of the combing cylinder attached Abreisssegmentes is slidably mounted.
  • the loading device consists of a compressed air source with compressed air acted upon bellows cylinder, which is supported in each case with one end directly or indirectly on the machine frame and with its other end connected to the upper pliers plate elements .
  • a loading device could also be used in conjunction with other types of nipper units.
  • bellows cylinders for the load of the upper tong plate, as already described, the noise level and the vibrations can be reduced, while at the same time only a small space requirement for these bellows cylinder is necessary.
  • bellows cylinder can compensate for certain angular deviations from their loading direction, making them ideal for this purpose, as will be described in more detail in subsequent embodiments.
  • the use of bellows cylinders in this application allows a stepless adjustment of the clamping force, as well as a central monitoring of the loading means. Likewise, no special tools are necessary to pivot the upper tong plate into an inoperative position.
  • bellows cylinder is understood to mean a compressed air actuated pneumatic lifting device, which is usually provided with a rotationally symmetrical bellows.
  • the bellows can be designed as Einfaltbalg or Mehrfaltenbalg, which z.
  • B. consists of an elastomer reinforced with a high-strength textile insert.
  • each have a support surface is provided which has an opening into which a, the end face of the respective bellows cylinder protruding extension projects when this on the support surface rests.
  • the extension of the respective bellows cylinder and the opening in the support surface may be dimensioned such that together they exert a clamping action on each other. This makes it possible that the upper clamp knife is lifted by the pivot arms for certain applications when moving the bellows cylinder by a certain amount.
  • the bellows cylinder are secured to the machine frame pivotally mounted arms. That after swinging the bellows cylinder over the arms, the upper pliers plate can also be swung out.
  • the claimed arms can also be directly connected to each other and form a total of a pivotable frame which is pivotable as an integral element.
  • At least one locking device is provided on the machine frame in order to fix the frame in this position.
  • the bellows cylinder is connected via a control valve with a compressed air source, which is reversible via a control unit for generating a Unterduckes.
  • Fig.1 the schematic view of a combing head of a combing machine is shown.
  • a multiplicity (for example eight) of such combing heads are arranged next to one another and are connected to one another in terms of drive via continuous drive elements (longitudinal shafts).
  • continuous drive elements longitudinal shafts.
  • nipper 1 for short
  • the upper tong plate 3 is connected to lateral arms 4a, 4b (see also Figure 3 ), which are pivotally mounted about a pivot axis 6 on the lower tong plate. Since in the present example, the lower tong plate 2 assumes a stationary position (ie, is immovable during a comb play), the pivot axis 6 could also be mounted directly in the machine frame MS.
  • a bracket 10 is fixed (schematically two screw connections are indicated), which has at its free end an axis 11 on which a respective roller 12 is rotatably mounted.
  • the rollers 12 may be provided with an elastic layer (for example rubber) on their circumferential surface for damping purposes and, depending on the angular position of the combing cylinder 16, lie on a circumferential surface U of a cam plate 14 (FIG. Fig.2 ), which rotatably on the Axis 7 of the combing cylinder is attached.
  • the cam plate 14 is provided with respect to the axis 7 with radically different radii R1, R2
  • a tear-off segment 20 is attached, which for tearing off the combed fiber tuft FB (FIG. Fig.2 ) forms a clamping line KL with a displaceable tear-off roller 8.
  • a feed roller 5 is rotatably mounted, which intermittently during a comb play fiber material F (tapes, nonwoven, wadding) from a source, not shown (wraps, cans, etc.) in the direction of the nip K of the forceps 1 supplies.
  • the supply is carried out in dependence on the angular position of the axis 7 of the combing cylinder 16 by a gear, not shown.
  • a fiber-fleece-forming device 22 is shown schematically, by means of which the fiber packets delivered by the tear-off roller 8 are brought together to form a fiber fleece or soldered.
  • the fiber fleece-forming device 22 is hereby provided with a rotating screen drum 23, which is arranged downstream of a doffer roller pair.
  • Such a device may, for. B. the illustrated embodiment of the published WO 2006/012759 A1 correspond.
  • the pliers 1 is in the closed state, in which a tuft FB protrudes from the closed pliers 1 and is combed out of the combing segment 19 of the combing cylinder 16.
  • the clamping force of the clamp for clamping the fiber material is generated by bellows cylinder B1, B2, which at one end via an end face 30 on a transverse strut 28, which is connected to the pivot arms 4a, 4b of the upper tong plate 3, supported.
  • bellows cylinders are provided in the region of the end face 30 with an extension 31, which protrudes for lateral fixation of the respective bellows cylinder B1, B2 in an opening 33 of the transverse strut 28.
  • the extension 31 and the opening 33 may be formed in the form or in the dimensions such that a releasable clamping connection (clamping force connection) between the extension 31 and the transverse strut 28 is formed. This makes it possible that when a negative pressure to the bellows cylinder B1, B2 and the resulting constriction of the bellows cylinder and the cross strut 28 and thus also the upper pliers plate 3 is lifted from the lower pliers plate 2.
  • the bellows cylinder B1, B2 are attached at their other ends via a receptacle 35 on a strut 36 via screws S.
  • the strut 36 is fixedly connected to the pivot arms 37, 38 which are pivotally mounted about the pivot axis 40 in the machine frame MS.
  • the pivot arms 37, 38 are in a locked position in which they are fixed by a locking device 50.
  • the locking in this position must be designed in such a way that it can not be released automatically during operation.
  • the proposed solution is shown by way of example only.
  • per Verrieglungsvoriques one per swivel lever
  • the latch 54 has a sloping surface 52 on which the bolt 51 slides along when the pivot lever from a high tilted position (see position shown in phantom in FIG Fig.2 ) are transferred to the locking position shown.
  • the bars are each connected to a spring 55, which are guided in a sleeve 57.
  • the sleeve is in each case connected to a lug 58, which is attached to the pivot arm 37, and 38, respectively.
  • an end stop 60 is provided, by means of which the pivoting movement in the direction of the combing cylinder 16 is restricted. That when swinging the pivot lever 37, 38 in the locking position shown, the pivot lever 37, 38 on the respective stop 60 at. However, as soon as the bellows cylinders B1, B2 are supplied with compressed air, the levers 37, 38 are raised to a distance a, the further lifting being prevented by the locking device 50.
  • connection 42 the bellows cylinders B1, B2 are connected to a line 44 which is fastened to a valve 27.
  • the individual lines of the respective bellows cylinder B1, B2 are combined to form a common line, which is connected to the valve 27.
  • line 44 is shown in the present example.
  • the circuit of the valve 27 via an electromagnet 21, which is controlled via the line 46 by a control unit ST.
  • a compressed air source 26 is connected via line 48 to the valve in connection.
  • the drive of the shaft 7 of the combing cylinder 16 via a transmission G which is controlled via the line 47 of the control unit ST.
  • the combing cylinder 16 from the transmission G has a modulated speed is driven.
  • the circumferential speed of the combing cylinder changes during a combing cycle and is adapted to the specific working cycle (combing, tearing off).
  • the peripheral speed of the combing cylinder 16 during tearing off could be lower, in order to ensure a gentle discharge of the drawn fiber packets onto a subsequent screening drum.
  • modulated speeds in a combing cylinder (circular comb) of a conventional combing machine is already common prior art, such. B. in the JP-57056525 (A ) was shown.
  • the roller 12 In the in Fig.1 shown position, the roller 12 is not on the circumference U of the cam 14 with the radius R2, so that the pressing force generated by the under pressure Balgzylindern B1, B2 at the nip K of the pliers is fully effective.
  • the area of the cam plate 14 with the larger radius R1 reaches the area of the roller 12, as in FIG Fig.2 is shown.
  • Characterized the roller 12 is raised with respect to the stationarily arranged lower tong plate 2 and thereby pivots the pivot arms 4a, 4b about the axis 6, whereby the forceps 1 opens.
  • the tear-off roller 8 has been displaced in the direction of the axis 7 and, together with the tear-off segment 20, forms a nip line for detecting the end of the already combed fiber tuft FB.
  • the tear-off roller 8 is pressed against the tear-off segment 20 with a loading device, not shown, in this position.
  • the departure process is now started, wherein the torn off on the nip fiber packets are delivered to a screen drum on which the formation of a non-woven fabric takes place, which is removed via the doffer rollers for further processing.
  • Fix comb FK engaged in tuft FB through which the withdrawn fiber material is pulled through. For reasons of clarity was on the representation of the FK Ridge in the Fig.1 and the 3 to 4 waived.
  • the pivot arms 37, 38 can be transferred into an upwardly pivoted position after release of the locking device 50, as shown in FIG Fig.2 indicated by dash-dotted lines.
  • the extensions 31 of the bellows cylinder B1, B2 are pulled out of the openings 33 of the cross strut and the bellows cylinder B1, B2 pivoted with the pivot arms in the upper position of inoperative position.
  • a locking device not shown, may be provided. After swiveling out the pivot arms 37, 38, the upper pliers blade 3 can also easily be pivoted about the pivot axis 6 via the pivot arms 4a, 4b. The pivoting back into the working position takes place in the corresponding reverse order.
  • Fig. 4 a further embodiment is shown, wherein most elements also coincide with the elements, which in the example of the Fig. 1 have been shown. Therefore, the same reference numerals are used for this example.
  • the only difference to the embodiments previously shown is the different attachment of the upper tong plate 3. This is performed in this example in the vertical direction in side guides 70 which are fixed to the machine frame and which allow relative to the lower tong plate 2, a vertical displacement of the upper tong plate 3 , This embodiment is made possible by the lower tong plate 2 is not moved in its installed position during a comb play.
  • the bracket 10, which carry the rollers 12 are, as indicated schematically, here in the vertical, in which moves the upper tong plate 3, or in the direction of the pressure load of the bellows cylinder B1, B2.
  • This embodiment also includes the advantages associated with the example Fig. 1 have been described.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP09775743A 2008-07-31 2009-07-09 Kämmvorrichtung zum kämmen eines fasermaterials Active EP2307597B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH12002008A CH699285A2 (de) 2008-07-31 2008-07-31 Kämmvorrichtung zum Kämmen eines Fasermaterials.
PCT/CH2009/000246 WO2010012112A1 (de) 2008-07-31 2009-07-09 Kämmvorrichtung zum kämmen eines fasermaterials

Publications (2)

Publication Number Publication Date
EP2307597A1 EP2307597A1 (de) 2011-04-13
EP2307597B1 true EP2307597B1 (de) 2012-05-16

Family

ID=41110817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09775743A Active EP2307597B1 (de) 2008-07-31 2009-07-09 Kämmvorrichtung zum kämmen eines fasermaterials

Country Status (4)

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EP (1) EP2307597B1 (zh)
CN (1) CN102112670B (zh)
CH (1) CH699285A2 (zh)
WO (1) WO2010012112A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705914A2 (de) * 2011-12-16 2013-06-28 Rieter Ag Maschf Rundkamm für eine Kämmmaschine, sowie Kämmmaschine.
CH707882A2 (de) * 2013-04-12 2014-10-15 Rieter Ag Maschf Rundkamm für eine Kämmmaschine.
EP3137660B1 (de) 2014-05-02 2020-02-26 Staedtler + Uhl KG Kreiskamm und kreiskammeinheiten mit einem an einer welle befestigten kreiskamm
CH711863A1 (de) * 2015-12-15 2017-06-15 Rieter Ag Maschf Kämmmaschine mit in Umfangsrichtung versetzten Kämmzylindern.
CH714581A1 (de) * 2018-01-23 2019-07-31 Rieter Ag Maschf Antriebsvorrichtung für ein Zangenaggregat einer Kämmmaschine.
CH716167A1 (de) * 2019-05-09 2020-11-13 Rieter Ag Maschf Abreisszylinderaggregat mit einer Vorrichtung für Druckzylinder von Abreisszylinderpaaren einer Kämmmaschine.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1605135A (en) * 1924-05-22 1926-11-02 Nasmith S Patents Ltd Combing machine
DE2845245C3 (de) * 1978-10-18 1981-12-10 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Kämmaschine
DE3831020A1 (de) * 1988-09-12 1990-03-15 Gerhard Reiter Kaemmaschine
DE502004006701D1 (de) * 2003-02-21 2008-05-15 Rieter Ag Maschf Zangenaggregat für eine Kämmaschine
EP1620584B1 (de) * 2003-04-02 2007-09-05 Maschinenfabrik Rieter Ag Zangenaggregat einer kämmaschine
CN2627014Y (zh) * 2003-08-18 2004-07-21 高友良 精梳机钳板结构的改进

Also Published As

Publication number Publication date
CN102112670A (zh) 2011-06-29
CN102112670B (zh) 2013-12-11
EP2307597A1 (de) 2011-04-13
WO2010012112A1 (de) 2010-02-04
CH699285A2 (de) 2010-02-15

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