EP0452677B1 - Kämmaschine - Google Patents

Kämmaschine Download PDF

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Publication number
EP0452677B1
EP0452677B1 EP91103937A EP91103937A EP0452677B1 EP 0452677 B1 EP0452677 B1 EP 0452677B1 EP 91103937 A EP91103937 A EP 91103937A EP 91103937 A EP91103937 A EP 91103937A EP 0452677 B1 EP0452677 B1 EP 0452677B1
Authority
EP
European Patent Office
Prior art keywords
nipper
pliers
combing machine
comb
segment
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
EP91103937A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0452677A1 (de
Inventor
Hans-Ulrich Eichenberger
Giancarlo Dr. Mondini
Heinz Clement
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 EP0452677A1 publication Critical patent/EP0452677A1/de
Application granted granted Critical
Publication of EP0452677B1 publication Critical patent/EP0452677B1/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
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/16—Nipper mechanisms

Definitions

  • the invention relates to a combing machine according to the preamble of the main claim.
  • the pliers are closed or the cotton wool is clamped, with part of the free end of the cotton wool protruding from the pliers for combing out through the round comb. This prominent part is commonly referred to as fiber beard.
  • the upper pliers, or their pliers plate are provided in the area of the clamping point with a plier lip oriented in the radial direction to the circular comb axis, which lip has a front end face of the lower pliers or their pliers plate overlaps. This ensures that the cotton wool or the fiber beard presented to the comb segment is oriented approximately in the radial direction to the circular comb axis before it is gripped by the comb segment.
  • the pliers are therefore designed in the area of the clamping point in such a way that when the two clamping surfaces lie directly on top of one another, there is still a safety distance between the lower edge of the pliers lip and the enveloping circle of the comb segment.
  • the aim of this setting is to maintain a small distance between the pliers lip and the enveloping circle of the combing needles while observing a safety distance in order to prevent the pliers from touching the needles even when the two pliers plates are lying directly on top of each other.
  • the pliers plate here represents the means by which the top pliers plate, which is pivotable about the pliers, is limited in its pivoting movement in the direction of the circular comb.
  • this object is achieved in that the means restricting the pivoting movement of the upper pliers, which guarantee a safety distance between the cooling circle of the comb segment and the pliers lip, ensure a free clamping gap in the area of the clamping point of the one in the clamping position Ensure the pliers, viewed in the direction of the circular comb axis, the safety distance is smaller than the path between the clamping surfaces until the clamping surfaces lie on one another.
  • this segment or these segments from non-metallic material.
  • a combination of metallic and non-metallic material for example a metallic material with a wear-resistant coating with low friction.
  • a non-metallic material e.g. the use of plastics, fiber composites or the like is conceivable.
  • Aluminum could also be used as the material for the segments.
  • the segments should have an abrasion-resistant surface so that the safety distance is always guaranteed. If signs of wear nevertheless occur, the proposed detachable fastening of these segments means that they can be replaced at any time.
  • this adjustable stop in a wedge shape. This enables an exact fine adjustment of the safety distance.
  • the restriction can also be carried out by attaching a rod which is mounted on the circular comb axis and which is connected to the upper pliers in a variable manner up to a predetermined safety distance.
  • the linkage is preferably designed to be adjustable in order to be able to set the safety distance between the tong lip and the enveloping circle of the comb segment.
  • the clamping surface of the pliers plate of the upper pliers is the surface which, as seen in the clamping position of the pliers, runs in the direction of the feed direction of the cotton fed to the clamping point of the pliers.
  • the adjustment refers to the change in the lower edge of the pliers lip, which is facing the circular comb segment.
  • the proposed measures are intended to ensure an optimal minimum distance between the tong lip and the enveloping circle of the comb segment when combing out the present cotton wool.
  • the proposed pivoting option of a collet plate in the area of the clamping point makes it possible, depending on the thickness of the battens used, to adjust the pliers so that so that pivoting of the tong lips into the comb segment is prevented in normal operation.
  • FIG. 1 shows a pair of pliers 1 of a combing head of a combing machine, which pliers are formed from lower pliers 2 and upper pliers 3, upper pliers 3 being pivotally mounted on lower pliers 2 about an axis 4.
  • the lower jaw 2 is pivotally mounted in its front area on both sides on a circular comb axis 6 and in its rear area on support arms 7 on a drive shaft 8.
  • the lower pliers have in their front area a tong plate 9 and a feed roller 10 rotatably mounted above the tong plate 9.
  • a guide plate 11 is attached to a partial circumference of the feed roller 10 at a radial distance. Above and in the extension of the guide plate 11, a further cotton guide plate 12 is pivotally attached to the lower pliers 2.
  • the upper tongs 3 are provided with a pliers plate 13, which is fastened between two lateral support arms 14, which are designed to be pivotable about the axis 4. This arrangement can be seen in particular from FIG. 2.
  • the two lateral support arms 14 of the upper tongs 3 are fastened in the upper region of the combing head via the axes 15 and via a linkage (not shown) provided with a spring. This means that with intermittent drive via the drive shaft 8, the pliers 1 move alternately into a rear and a front position. Due to the corresponding articulation of the upper tongs 3 in the axis 15, the upper tongs 3 move during the back and forth movement from an open to a closed position.
  • the pliers 1 assume a rear and closed position. In this position, the wadding 16 fed to the pliers 1 by a winder (not shown) is clamped in the pliers 1.
  • a front position (not shown in more detail) of the pliers 1, this takes up an open position, the combed fiber beard 18 by two tear-off cylinders 21, 22 gripped by the cotton 16 and torn off.
  • the tear-off cylinders 21, 22 then rotate counter to the direction of rotation, which is indicated by arrows in FIG. 1.
  • the direction of rotation shown in FIG. 1 of the tear-off cylinders 21, 22 is provided for the partial return of the already torn fiber beard for attachment or for soldering of the subsequent and torn off fiber beard 18.
  • the tear-off cylinders 21, 22, the circular comb axis 6 and the drive shaft 8 are mounted in an indicated machine frame 23.
  • the feed roller 10 is driven in batches by the reciprocating movement of the pliers 1 and thus gradually leads the cotton 16 to the nip 17 of the pliers 1.
  • a segment 24, 25 is fastened on both sides of the comb segment 19.
  • the attachment here is carried out by means of screws 26 to the side of the comb segment 19 and in the region of the end faces 27 of the circular comb 20.
  • the segments 24, 25 could also be glued or attached in some other way. In any case, it is advantageous to fix the segments 24, 25 releasably so that they can be replaced when worn.
  • FIG. 1 it can be seen from FIG. 1 that the outer stop surfaces 28 of the segments 24, 25 project beyond the enveloping circle 29 of the needle tips of the comb segment 19. From Figure 2 shows that the stop surfaces 28 protrude into the pivoting range of the upper pliers plate 13.
  • FIG. 3 shows an enlarged illustration of the clamping point 17 of the pliers 1. It can be seen here that the pliers plates 13 and 9 are each provided with a separate clamping profile in the front region of the clamping point 17.
  • the upper pliers plate 13 has a pliers lip 30 which engages over the front end face 31 of the lower pliers plate 9. This will make the fiber beard 18 for combing out in an approximately radial direction to the circular comb axis 6 presented to the comb segment 19. Due to the direction of movement of the circular comb 20, the fiber beard 18 is deflected after the combing needles 32 of the comb segment 19 in the direction of the tear-off cylinders 21, 22 during the combing process.
  • the forceps lip 30 would get into the area of the combing needles 32 without the segments 24, 25 and lead to severe damage.
  • the pivoting movement of the upper pliers plate 13 is limited by the lower edge 33 of the pliers lip 30 resting on the stop surface 28 of the segments 24 and 25.
  • a safety distance Z is guaranteed between the enveloping circle 29 of the comb segment 19 and the stop surface 18 of the segments 24 and 25, although there is still a free clamping gap in the area of the clamping point 17, which would allow further pivoting.
  • the safety distance Z is formed from the difference between the enveloping circle radius R2 and the enveloping circle radius R1 of the combing needle tips and is advantageously set between 0.2 and 0.4 mm.
  • a stop 35 which can be adjusted on both sides of the lower tongs 2 and which projects into the pivoting range of the two side arms 14 of the upper tongs 3 was attached.
  • the stop 35 is wedge-shaped and slidably mounted with respect to the stop surface of the side arms 14.
  • the stop 35 is fastened via a screw 36 to a bracket 37 attached to the lower pliers 2.
  • the bracket is provided with an elongated hole 39 for lateral displacement in relation to the stop edge 38 of the support arm 14.
  • the safety distance Z can be set precisely with the aid of a teaching which is inserted between the needle tips and the lower edge 33 of the pliers lip 30.
  • This embodiment has the advantage over the embodiment according to FIG. 1 that there is no wear on the pliers lip or on the stop element.
  • FIG. 6 A design similar to that in FIG. 5 is shown in FIG. 6, with a rod 40 fastened on the circular comb axis 6 being articulated to maintain a safety distance Z, which rod 40 is provided in a tab provided with a through hole 41 and fastened to the respective side support arm 14 of the top pliers 3 42 protrudes.
  • the free end of the rod 40 protruding through the tab 42 is provided with a thread 45, which carries a nut 43 and lock nut 44 below the tab 42.
  • a safety distance Z can be adjusted by or set by the nut 43. If this has happened, the nut 43 is fixed in the set position by the lock nut 44.
  • the invention relates not only to forceps units which perform a reciprocating movement, but also to those which have a different kinematic workflow.
  • FIGS. 7 and 8 with an adjustable pliers lip 30 can also be provided with end stops in accordance with the previously described embodiments according to FIGS. 1 to 6.
  • FIG. 7 An embodiment is shown in FIG. 7, the pliers lip 30 being slidably fastened on the pliers plate 13 by means of screws. This means that the distance to the upper clamping surface 47 can be adjusted depending on the thickness of the wadding, so that the pliers 1 can be used universally, for thick wadding and for normal wadding.
  • the adjustable pliers lip is provided with an elongated hole 48 for the purpose of adjustment, while the screw 46, several of which are used across the width, is fastened in a threaded bore 49 in the pliers plate 13.
  • FIG. 8 A similar embodiment is shown in FIG. 8, the pliers lip 30 being assigned a displaceable lower part 49 in its extension.
  • This lower part 49 is adjustably fastened by screws 50 to the pliers plate 13, which is provided with elongated holes 51.
  • the screws are countered by nuts 52, which are located in a recess 53 of the pliers plate 13.
  • the designs shown in FIGS. 7 and 8 also have the advantage that, on the one hand, the pliers lip can be set exactly over the entire clamping line and, on the other hand, can be easily replaced when worn.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP91103937A 1990-04-14 1991-03-14 Kämmaschine Expired - Lifetime EP0452677B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1273/90A CH682403A5 (de) 1990-04-14 1990-04-14 Kämmaschine.
CH1273/90 1990-04-14

Publications (2)

Publication Number Publication Date
EP0452677A1 EP0452677A1 (de) 1991-10-23
EP0452677B1 true EP0452677B1 (de) 1997-01-22

Family

ID=4206563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103937A Expired - Lifetime EP0452677B1 (de) 1990-04-14 1991-03-14 Kämmaschine

Country Status (5)

Country Link
US (1) US5255416A (ja)
EP (1) EP0452677B1 (ja)
JP (1) JPH0649714A (ja)
CH (1) CH682403A5 (ja)
DE (1) DE59108492D1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH685163A5 (de) * 1992-02-27 1995-04-13 Rieter Ag Maschf Oberzangenmesser für eine Kämmaschine.
DE19504134C2 (de) * 1995-02-09 1998-08-27 Csm Gmbh Zangenapparat für Kämmaschinen mit Rundkammwalze und Abreißwalzen
DE19504148A1 (de) * 1995-02-10 1996-08-14 Chemnitzer Spinnereimaschinen Zangenaggregat für eine Kämmaschine mit Rundkammwalze
JPH108330A (ja) * 1996-06-24 1998-01-13 Howa Mach Ltd コーマの繊維引き渡し方法及びニッパ装置
EP1254976A1 (fr) * 2001-04-30 2002-11-06 N. SCHLUMBERGER & CIE, S.A. Procédé de peignage rectiligne et peigneuse rectiligne pour la mise en oeuvre de ce procédé
EP1644560B1 (de) * 2003-04-02 2007-04-04 Maschinenfabrik Rieter Ag Zangenaggregat einer k mmaschine
DE102006016385B4 (de) * 2006-04-05 2008-01-24 Oerlikon Textile Gmbh & Co. Kg Kämmmaschine mit Rundkamm und schwingender Zange
CH712606A1 (de) * 2016-06-27 2017-12-29 Rieter Ag Maschf Vorrichtung für eine Kämmmaschine.
CH719062A9 (de) * 2021-10-14 2023-06-30 Rieter Ag Maschf Kämmvorrichtung zum Kämmen eines Fasermaterials.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US724119A (en) * 1901-10-05 1903-03-31 John William Nasmith Combing-machine.
US1826494A (en) * 1929-08-24 1931-10-06 Whitin Machine Works Cotton comber
US2005001A (en) * 1932-03-02 1935-06-18 Nasmith John William Combing machine
US2680885A (en) * 1949-07-22 1954-06-15 Schleifer Carlo Combing machine for textile fibers
US3066360A (en) * 1957-06-01 1962-12-04 Joh Jacob Rieter & Co Ltd Nipper mechanism for a combing machine
US3108333A (en) * 1959-09-04 1963-10-29 Sant Andrea Novara Ohg E Fonde Adjustment of nippers for combing frames
FR1241591A (fr) * 1959-11-27 1960-09-16 Spinnerei Karl Marx Veb Dispositif de commande des cylindres arracheurs d'une peigneuse rectiligne
US3400431A (en) * 1967-01-27 1968-09-10 Whitin Machine Works Comber nipper feed system
DD138999B1 (de) * 1978-10-24 1980-11-26 Manfred Welker Flachkaemmaschine
JPS6215330A (ja) * 1985-07-13 1987-01-23 Hara Shiyokuki Seisakusho:Kk コ−マのニツパフレ−ムの揺動方法および装置

Also Published As

Publication number Publication date
JPH0649714A (ja) 1994-02-22
EP0452677A1 (de) 1991-10-23
US5255416A (en) 1993-10-26
DE59108492D1 (de) 1997-03-06
CH682403A5 (de) 1993-09-15

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