EP2718489B1 - Führungselement in einem zangenaggregat einer kämmmaschine - Google Patents

Führungselement in einem zangenaggregat einer kämmmaschine Download PDF

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Publication number
EP2718489B1
EP2718489B1 EP12727224.3A EP12727224A EP2718489B1 EP 2718489 B1 EP2718489 B1 EP 2718489B1 EP 12727224 A EP12727224 A EP 12727224A EP 2718489 B1 EP2718489 B1 EP 2718489B1
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EP
European Patent Office
Prior art keywords
nipper
bridge
plate
unit
region
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.)
Not-in-force
Application number
EP12727224.3A
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German (de)
English (en)
French (fr)
Other versions
EP2718489A1 (de
Inventor
Daniel Bommer
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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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP2718489A1 publication Critical patent/EP2718489A1/de
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Publication of EP2718489B1 publication Critical patent/EP2718489B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01G19/28—Air draught or like pneumatic arrangements

Definitions

  • the invention relates to a nipper unit of a combing machine, with a lower pliers plate, which can form a nip with a movable in the nipper unit upper pliers plate in the region of their pliers lip and a within the nipper unit above the lower pliers plate rotatably mounted feed roller, wherein the nipper unit at least a, mounted in the machine frame Abreisszylinder to form a tear-off is arranged downstream and with a, between the feed roller and the pliers lip on the lower pliers plate removably mounted and aligned transversely to the conveying direction of the fiber mass web, below the lower pliers plate rotatably mounted circular comb for combing out of fiber tufts is arranged.
  • noil varies between 5 and 30% and as a rule depends on the desired yarn quality, which results from the subsequent spinning out of the combed fiber mass. In addition, the proportion of noil depends on the fiber mass presented (material template).
  • One method is the adjustment of the Ecartement, which marks the distance between the pliers lip of the lower tong plate and the terminal point of the tear-off cylinder.
  • a large Ecartement results in a high Auskung, while a small Ecartement a small Auskung is achieved.
  • To adjust the Ecartement the coupling is rotated on the forceps shaft, so that the position of the swinging movement, or the pivoting of the pliers changed by a corresponding amount, whereby the Ecartement is larger or smaller depending on the adjustment. Furthermore, it is possible to influence the proportion of combing through the choice of food type of the feed cylinder.
  • the combing is smaller than if this was done in the return of the pliers (return feed). As with the return feed the round comb combing out the full supply amount is present also the combed portion is greater than in the supply feed.
  • the conventional forceps plates can have a width of up to 300 mm, there is a risk that the bridge in the central region is therefore not completely seated on the forceps plate and there can accumulate fiber material. To eliminate this circumstance, therefore, the web was additionally glued in this central area with the pliers plate. However, this disassembly is limited and worsened. Since the existing space in the front region of the nipper unit (in short: pliers called) for the disassembly and assembly of the web is very limited, the accessibility for mounting the screw is very limited. Ie. The time required for the exchange of webs on a machine with the known solution may be significant and leads to production losses.
  • the web in the region of its support surface, which a bearing surface, one at least partially is made of ferromagnetic material lower pliers plate facing, having magnetic means and means are provided in the region of both ends of the web, via which the web is positively fixed in the plane of its support surface on the lower pliers plate.
  • the magnetic means may consist of several means, which are mounted on the entire length of the web (ie also in the middle region of the web).
  • the lower tong plate is at least in the area of a ferromagnetic material in which the web is mounted.
  • the magnetic means - seen in the longitudinal direction of the web - consist of several spaced apart, fixed to the web magnet.
  • the necessary number of magnets can be set, which are necessary to keep the bridge securely on the lower pliers plate even at high dynamic influences, which, for. B. occur in a reciprocating pliers.
  • this ensures the complete abutment of the web on the pliers plate also in the middle region, whereby the fiber material can not adhere.
  • the magnets are mounted in recesses of the web.
  • the web in the region of its two ends has projections which point in the direction of the support surface of the lower pliers plate and protrude into recesses of the lower pliers plate and form a positive connection with these.
  • the bridge during its installation can be easily transferred over the elevations in the recesses of the pliers plate and is then fixed in this position by the positive locking securely in its mounting position to the pliers plate.
  • the web In the vertical direction to the lower tong plate the web is held on the magnets on the tong plate.
  • the web is provided in the region of its two ends with, from its guide surface, upwardly projecting side guides for the fiber material.
  • the respective side guide is connected to the respective elevation and the web in this area has an opening through which at least a portion of the respective Survey and / or at least a part of the respective side guide protrudes.
  • the term “respective” survey, or side guide refers to each one of the survey, or the side guide which is attached to the respective end of the web.
  • mount the feed roller in its installed position, or to dimension it, so that a release of the positive connection of the web with the lower tong plate is prevented. This ensures that the bridge remains in its installed position during operation even at high dynamic loads.
  • This blocking can be achieved by the corresponding design of the side guides, which face at least on one side of the feed roller. It is proposed that the side guides on the side opposite to the feed roller are each provided with an arcuate surface which, in the installed position, has a spacing of between 0.1 and 2.5 mm from the circumferential surface of the feed roller.
  • the web (32) in the region of the guide surface (35) has a trapezoidal cross-section.
  • FIG. 1 shows a known nipper unit 1 (called “pliers” for short), which is pivotally mounted on the crank arms 2, 3.
  • two crank arms 2 are each mounted laterally of a circular comb 4 on the circular comb shaft 5 pivotally.
  • the circular comb 4 has a comb segment 7 on a part of its circumference.
  • the other end of the pivot arms 2 is rotatably mounted on a clamp frame 8.
  • the rear pivot arm 3 (there may also be two) is rotatably mounted on a gun shaft 10.
  • the opposite free end of the pivot arm 3 is rotatably connected via a shaft 9 with the clamp frame 8.
  • several combing heads are arranged side by side on a combing machine, each combing head having a nipper unit. In the examples, however, the inventive attachment of a web is shown and described only on a single nipper unit.
  • the forceps 1 consists essentially of a fixed to the forceps frame 8 lower pliers plate 12 and an upper pliers plate 14 (sometimes called also pliers knife), which is attached to two pivot arms 15, 15 '. These pivoting arms are pivotally mounted on the tong frame 8 via a pivot axis 16.
  • the pivot arms 15, 15 ' are each connected to a strut 18, which in turn via an axis 20 on a driven Excenter 21 are stored. Seen in the material flow direction F of the fiber material W to be processed, a pair of tearing cylinders 24 is provided behind the tongs 1.
  • the Abreisszylindercru 24 consists of a lower tear-off cylinder 24a, which cooperates with a tear-off pressure cylinder 24b to form a tear-off clamping line K.
  • a fixed comb 11 Schematically indicated is a fixed comb 11, which is fastened to the forceps frame 8 by means not shown and in which the tuft FB of the fiber material W (eg a cotton or fiber ribbons) is drawn in, if its end E in the direction of the clamping point K of the following Tear-off cylinder 24 is transported via the movement of the end E1 of an already present fiber fleece V. This is in the FIG. 1 indicated by dashed lines.
  • a feed roller 27 is rotatably mounted, which is connected via a drive not shown in detail and performs a discontinuous rotational movement in order to transport the supplied cotton W in sections.
  • the feed cylinder 27 has a shaft 28, via which it is rotatably mounted on both ends via bearings not shown in detail in bearing receptacles of the nipper frame.
  • the drive of the feed roller 27 can be done via a known jack drive, which is controlled by the movement of the upper tong plate 14. However, it is also possible to make the drive of the feed roller 27 regardless of the movement of the upper tong plate, where he z. B. can be done via a cam, as for example in the GB-PS 933,946 is shown.
  • the combing takes place with the clamp 1 closed when it is in a rear position (not shown).
  • the end of the fiber material projecting from the tongs also called fiber tuft FB
  • the end of the fiber material projecting from the tongs reaches the area of the combing segment 7 of the circular comb 4 and is combed out.
  • the pliers are pivoted to a forwardmost position while being opened.
  • the combed end of the fiber tuft FB is placed on the end of a previously partially transported back fiber web V and then transferred by the transport movement of the fiber web to the terminal point K of the tear-off cylinder 24.
  • the tuft FB arrives in the area of the needles of a fixed comb 11.
  • the rotational movement of the tears 24 causes the fibers of the tuft FB, which reach the nip K, to be pulled out of the tuft and soldered to the end of the fleece V.
  • the nonwoven fabric is then combined via known devices to form a sliver and further transported.
  • FIG. 2 a further known embodiment of a nipper unit 1 (pliers) of a combing head of a comber is shown, in contrast to the example of Fig.1 the tong frame 8a with the lower tong plate 12 fixedly mounted in the machine frame MS.
  • the upper tong plate 14 is at two Swivel arms 15, 15 'attached, which are pivotally mounted about the axis 16 on the forceps frame.
  • the pivotal movement of the upper pliers plate 14 is controlled by an arm 45, which is articulated via a pivot axis 46 on the respective pivot arm 15, and 15 a.
  • the respective arm 45 has a rotatably mounted roller 47 which rests on the outer circumference UF of a cam KS.
  • the cam KS is rotatably mounted on the circular comb shaft 5 of a circular comb 4a.
  • the rollers 47 one of which is provided at each end of the circular comb, are held in contact with the respective circumference UF of the cam KS via loading elements which act on the pivot arms 15, 15 '.
  • load elements for each of the pivot arms 15, 15 'in the present case bellows cylinder 40 are provided, which are in communication with a pressure source P, as shown schematically.
  • the on the respective pivot arm 15, 15 'pivotally mounted bellows cylinder 40 may be secured to the opposite end on the machine frame or on a pivot frame, not shown.
  • Such a device may, for. B. from the published WO 2010/012113 A1 be removed.
  • the Fig.2 to remove a circular comb 4a wherein in addition to one, mounted on the circumference of the circular comb Kämmsegment 7 a tear-off segment 37 is fixed, which can form a nip line K1 with a sliding Abreiszylinder 22.
  • the tear-off cylinder 22 is, as schematically indicated by a double arrow, rotatably mounted via an axis 23 which is slidably mounted in the direction of the circular comb axis 5.
  • the pliers 1 is opened, wherein the pliers lip 31 of the upper pliers plate 14 is lifted from the pliers lip 30 of the lower pliers plate 12 and the end E of the pliers protruding, already combed fiber tuft FB in the nip K1 between the tear segment 37 and which is held the tear-off cylinder 22.
  • the tear-off cylinder 22 is pressed against the peripheral surface of the tear-off segment 37 via loading means, not shown, and rotated by friction by the movement of the tear-off segment.
  • the fiber package drawn off from the end of the fiber material is transferred in the direction of a following, rotatably mounted screening drum 42, to which a negative pressure from a vacuum source U is applied in the interior via the line L.
  • a cover element 43 is provided inside the screen drum.
  • the end of the withdrawn fiber bundle is placed on the end of the webbed on the nonwoven fabric V and brought into an overlap with this.
  • the nonwoven fabric formed in this way passes through the rotational movement of the screen drum indicated by arrow into the area of a take-off roll W.
  • the fiber web V is detached from the screen drum and fed to a fleece stacker VT, at which the fleece is combined to form a fiber band.
  • This sliver is delivered via a subsequent Kalanderwalzencru KW on a conveyor table T, on which it is fed with other slivers of adjacent, not shown combing a subsequent drafting system (not shown).
  • Fig. 3 shows an enlarged partial section of the forceps 1 (after Fig.1 or Fig.2 ) in the closed position in the front region of the pliers lip 30 of the lower Pliers plate 12.
  • the pliers plate 12 below the feed cylinder 27, the pliers plate 12 on a feed trough 26 which cooperates with the feed cylinder to transport the, supplied by a template (cotton wool, cans) fiber material W in the direction of the front pliers lip 30.
  • a template cotton wool, cans
  • a web 32 provided with a trapezoidal cross-section is mounted on the lower tong plate 12, which extends across the width B of the fiber material W transversely to the material flow direction F.
  • the web 32 which has a height H, is provided with a guide surface 35, via which the fiber material W, which is discharged from the feed trough 26 through the feed roller 27, is subsequently passed into the clamping region of the tongs lip 30.
  • side guides SF1 and SF2 are mounted above the guide surface 35 at both ends of the web, as in particular from Figure 5 (View X the Figure 3 ) can be seen.
  • the dimension a with which the tuft FB protrudes from the lower clamping point KU of the tongs 1, is decisive for the percentage of combing out. Ie. the larger the dimension a, the more fibers are no longer clamped by the nip KU and are thus combed out by the combing segment.
  • the combing becomes smaller when the dimension a is smaller.
  • the dimension a and thus the degree of combing can be determined by the selection of the height H of the web 32, with Ecartement Ec remaining the same.
  • the Ecartement Ec is the distance between the smallest distance between the nipper lip 30 of lower pliers plate 12 and the subsequent tear-off line K, or K1.
  • the Ecartement Ec can be influenced by changing the pivoting movement of the pliers.
  • the Ecartement between the forceps lip 30 and the tear-off clamping line K1 is substantially constant and can only be changed by moving the tear-off cylinder.
  • the attachment of the side guides SF1, SF2 is from the Figure 4 and Figure 5 seen.
  • the web is provided in the region of its two ends, each with a bore 53 in which a pin 54 is attached.
  • the attachment can be done by pressing or by gluing.
  • the pin 54 (with, for example, a circular cross-section) projects beyond the guide surface 35 of the web 32 with a smaller-diameter attachment 55.
  • the attachment 55 protrudes into a depression 58 of the respective guide SF1 or SF2.
  • the attachment 55 is firmly connected to the respective guide SF1, SF2 by pressing or gluing.
  • the pin 54 projects beyond the surface b the surface SU.
  • a positive connection with a recess 52 is made when installing the web, which is mounted in the lower tong plate 12.
  • the cross-sectional shape of the pin 54 and the recess 52 are designed and dimensioned to each other to ensure a tight fit.
  • the pin is provided with a circular cross-section.
  • the recess is designed as a blind hole 52 or as a through hole 52 '.
  • the dimensioning of the recess 52 and the pin 54 is set so that a manual disassembly and assembly in this area is possible.
  • the pin 54 can still be provided with a chamfer 54 '(FIG. Figure 5 ) in order to facilitate insertion of the pin in to allow the recess 52 (52 ').
  • the end of the protruding into the blind hole pin 54 still has a small distance to the end of the blind hole 52, when the web 32 with the lower web surface SU completely on the support surface AF of the lower tong plate 12 rests. This is schematically in the embodiment of Figure 5 shown. This ensures complete installation of the bar on the tong plate.
  • the magnets 50 in the region of the lower surface SU of the web 32 in recesses 49 are mounted at a distance m. This is especially true of the 5 b can be seen, wherein the magnets 50 z. B. are designed in the form of a circular disc. In this case, the lower surface of the magnets 50 is exactly on the level of the lower surface SU of the web 32 or is offset to a slight extent between 0.05 and 0.5 mm inwards.
  • the guides SF1, SF2 have a corresponding arcuate side surface 55 in the installed state of the web 32 and the feed roller 27 a small distance d between 0.1 and 2.5 mm to the peripheral surface US of the feed roller 27 has.
  • the web 32 can unintentionally detach from its installed position and reach the area of other elements of the comber (eg in the region of the combing segment 7 of the circular comb 4). Under certain circumstances, this would lead to major damage to the comber and lead to longer downtimes. However, this is prevented by the proposed embodiment. Like from the Fig. 4 to take the web 32 can move maximally in the position, which is shown by dashed lines. In this position, the side surface 56 comes to stop against the peripheral surface US of the feed roller 27, which a further movement of the web 32 is blocked or blocked.
  • the pin 54 protrudes in this position with a measure c in the recess 52 of the lower tong plate 12, whereby a horizontal displacement of the web is suppressed on the plane of the support surface.
  • the disassembly of the web 32 can not take place until the feed roller has been dismantled or removed.
  • each with a continuous bore 65 is provided on the lower pliers plate in a recess 63 (bore) each a bolt 60 is fixed, which faces the respective bore 65 prior to assembly of the web 32.
  • the bolts 60 are provided with a chamfer 61.
  • Magnets 50 mounted at a distance m.
  • the respective side guide (only one shown) is offset to the bore 65 via a screw 70 on the guide surface 35 of the web 32 attached.
  • the screw protrudes through a stepped bore 69 of the web 32 and is screwed into a threaded hole 67 of the respective guide SF1, SF2.
  • An advantage of this design is the better view during the assembly process in the form of positive connection between the bolt 60 and the holes 65. That is, through the upwardly open holes 65, it can be better recognized whether the holes 65 and the bolt 60 at Mounting process coaxially facing.
  • the side guides SF1, SF2 otherwise have the same shape as in the embodiments of Figure 4 and Figure 5 , With the embodiment of the web proposed according to the invention, it is now possible, if required, to exchange the webs on the respective combing head of the comber easily and quickly without a special tool. By the proposed magnets ensures that the web 32 rests safely and completely on the support surface AF of the lower tong plate 12 over its entire length even at high dynamic loads by a high Kammspielteil.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP12727224.3A 2011-06-06 2012-05-25 Führungselement in einem zangenaggregat einer kämmmaschine Not-in-force EP2718489B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00954/11A CH705071A2 (de) 2011-06-06 2011-06-06 Zangenaggregat einer Kämmmaschine.
PCT/CH2012/000118 WO2012167389A1 (de) 2011-06-06 2012-05-25 Führungselement in einem zangenaggregat einer kämmmaschine

Publications (2)

Publication Number Publication Date
EP2718489A1 EP2718489A1 (de) 2014-04-16
EP2718489B1 true EP2718489B1 (de) 2015-09-09

Family

ID=46275604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12727224.3A Not-in-force EP2718489B1 (de) 2011-06-06 2012-05-25 Führungselement in einem zangenaggregat einer kämmmaschine

Country Status (5)

Country Link
EP (1) EP2718489B1 (zh)
JP (1) JP6016901B2 (zh)
CN (1) CN103562450B (zh)
CH (1) CH705071A2 (zh)
WO (1) WO2012167389A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH709901A2 (de) * 2014-07-21 2016-01-29 Rieter Ag Maschf Zangenaggregat einer Kämmmaschine.
CH709900A2 (de) * 2014-07-21 2016-01-29 Rieter Ag Maschf Kämmmaschine.
CH710541A2 (de) * 2014-12-19 2016-06-30 Rieter Ag Maschf Rundkamm mit Führungselement.
CN105887250B (zh) * 2016-05-18 2018-06-12 中原工学院 一种新型精梳机钳板机构
CH712820A1 (de) * 2016-08-16 2018-02-28 Rieter Ag Maschf Zangenaggregat mit einer Fasermassen-Rückzugsvorrichtung.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE231797C (zh)
GB933946A (en) 1961-02-20 1963-08-14 Tmm Research Ltd Improvements in textile combing machines
DE19504010A1 (de) * 1995-02-09 1996-08-14 Chemnitzer Spinnereimaschinen Kämmaschine mit Zangenapparat, Rundkämmwalze, Fixkamm und Abreißwalzenpaar
CN2500693Y (zh) * 2001-11-16 2002-07-17 高素文 固定钳床的精梳机
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
CN100540766C (zh) * 2003-08-25 2009-09-16 特鲁菲舍尔股份有限公司及两合公司 用于棉、合成纤维等的梳理机中的设备，其中有至少一个具有梳理盖板针布的梳理盖板杆
CH699286A2 (de) 2008-07-31 2010-02-15 Rieter Ag Maschf Kämmvorrichtung zum Kämmen eines Fasermaterials.

Also Published As

Publication number Publication date
EP2718489A1 (de) 2014-04-16
JP6016901B2 (ja) 2016-10-26
CN103562450B (zh) 2016-06-15
CN103562450A (zh) 2014-02-05
WO2012167389A1 (de) 2012-12-13
JP2014518960A (ja) 2014-08-07
CH705071A2 (de) 2012-12-14

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