EP0619389B1 - Dispositif de pinçage pour une machine de peignage - Google Patents

Dispositif de pinçage pour une machine de peignage Download PDF

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Publication number
EP0619389B1
EP0619389B1 EP19940810157 EP94810157A EP0619389B1 EP 0619389 B1 EP0619389 B1 EP 0619389B1 EP 19940810157 EP19940810157 EP 19940810157 EP 94810157 A EP94810157 A EP 94810157A EP 0619389 B1 EP0619389 B1 EP 0619389B1
Authority
EP
European Patent Office
Prior art keywords
nipper
knife
unit
blast air
pliers
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
EP19940810157
Other languages
German (de)
English (en)
Other versions
EP0619389A1 (fr
Inventor
Helfried Lang
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 EP0619389A1 publication Critical patent/EP0619389A1/fr
Application granted granted Critical
Publication of EP0619389B1 publication Critical patent/EP0619389B1/fr
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
    • D01G19/28—Air draught or like pneumatic 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
    • D01G19/16—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
    • D01G19/22—Arrangements for removing, or disposing of, noil or waste

Definitions

  • the invention relates to a pair of pliers for a combing machine, with a pair of pliers frame, which carries a Unterzangenplatte, with a comb-having fixed comb, which is carried on the Unterzangenrahmen, with a pair of pliers with upper clamp arms, which are pivotally connected to the lower clamp frame and one with bear the upper pliers knife cooperating, and with a device for delivering air currents on the comb needles of the fixed comb and on fiber beards clamped between the upper pliers knife and the lower pliers plate.
  • Document DE-A-37 22 481 describes a fixed comb of the type mentioned above for a combing machine with a device for delivering air flows to the fixed comb needles.
  • the spaces between the fixed comb needles are cleaned with the air currents.
  • the air streams can also be used to press down on the rotating beard in a pair of pliers of a combing machine a rotating circular comb which combs out the beards.
  • the device for releasing the air flows contains an air chamber attached to the fixed comb, which is delimited by a cover plate of the fixed comb and an air guide plate attached to this cover plate.
  • air pulses are triggered depending on the comb play, or the movements of an optionally arranged pliers or another coordinated driven machine element of the combing machine. Due to the air chamber attached to the cover plate, the fixed comb is not only relatively bulky, but also a lot more expensive than a simple fixed comb sheet, which, for example, can only consist of a series of comb needles attached to a plate and which can be easily and inexpensively replaced if damaged.
  • the object of the invention is to provide a pliers unit of the type specified at the outset, with which the disadvantages described above can be avoided and, moreover, improved cleaning of the fixed comb can be achieved.
  • the pliers assembly according to the invention is characterized in that the upper pliers knife is provided with a blown air duct which has at least one air outlet opening for expelling blown air in the direction of the fixed comb, and that the upper part of the pliers is provided with means for the timed supply of blown air into the blown air duct.
  • the invention first has the advantage that a fixed comb with a simple, inexpensive to produce and if necessary easily and inexpensively replaceable fixed comb blade can be used. Since the upper pliers knife is moved with respect to the lower pliers frame and the fixed comb during operation, the air flows emerging from the blown air duct of the upper pliers knife can also move over the fixed comb, which results in more thorough cleaning.
  • simple, purely mechanical means - using the movements of the upper part of the pliers with respect to the lower pliers frame or a back and forth movement of the entire pliers assembly in the operation of a combing machine - can be used to control the blown air in such a way that the blown air only during the closing and / or during the opening of the pliers unit or when the pliers unit is closed, but not when the pliers unit is fully open, if a tear-off device is to grasp a combed fiber beard and pull it through the fixed comb.
  • a combing head of a combing machine contains a round comb roller 11 and two tear-off cylinders 12, 13, which are rotatably mounted in a machine frame, not shown, and a pliers unit with a pair of pliers frame 14, which is located in the machine frame between the one in FIG shown rear end position and the front end position shown in Fig. 4 is movable back and forth.
  • the lower clamp frame 14 carries a lower clamp plate 15.
  • a fixed comb is supported on the lower clamp frame 14, which consists of a fixed comb carrier 16 and an interchangeable fixed comb blade 17 which is screwed onto the latter.
  • the fixed comb sheet 17 in turn consists of a plate 17.1 and comb needles 17.2 attached to this plate.
  • support of the fixed comb on the lower jaw frame also includes a fixed comb that is movably mounted on the lower jaw frame and possibly controlled.
  • Bearing pins 18 are fastened in the lower jaw frame 14 on both sides, on each of which an upper jaw arm 19 is pivotally mounted.
  • the upper tongs arms carry an upper tongs knife 20 which, according to the invention, is provided with a blown air duct which has at least one air outlet opening for expelling blown air in the direction of the fixed comb 16, 17.
  • the blown air duct has the form of a blown air bore 21 which runs in the interior of the upper-nose knife 20.
  • the bore 21 has air outlet openings in the form of a series of outlet bores 22 distributed over the length of the upper pliers knife 20.
  • the upper part of the pliers formed by the upper pliers knife 20 and the upper pliers arms 19 is provided according to the invention with means for the clocked supply of blown air into the blown air bore 21 of the upper pliers knife 20. 1 to 4, these means initially contain feed bores 23 which run in the interior of the upper pliers knife 20.
  • the feed holes 23 go from the two on the upper jaw arms 19 attached ends of the upper pliers knife 20 and open into the blow air bore 21.
  • feed bores 24 are provided which lead to the inlet openings of the feed bores 23.
  • the feed bores 24 start from the bearing bores in the upper tong arms 19 with which they are mounted on the bearing bolts 18.
  • bearing bolts 18 each contain a cavity 18.1, which is connected to a compressed air connection 25 (FIG. 3) on the collet frame 14.
  • a radial outlet opening 18.2 extends from the cavity 18.1 of each bearing pin 18 and leads to the circumference of the bearing pin.
  • the lower jaw frame 14 When the combing machine is in operation, the lower jaw frame 14 is moved back and forth between the rear end position shown in FIG. 1 and the front end position shown in FIG. 4. In the rear end position (Fig. 1) the pliers unit is closed; Between the lower edge of the upper pliers knife 20 and the front edge of the lower pliers plate 15, a fiber beard (not shown) is clamped, which is combed out by a circular comb segment 26 on the rotating circular comb roller 11. In this closed position of the pliers assembly, the inlet openings of the feed bores 24 in the upper pliers arms 19 are aligned with the outlet openings 18.2 of the bearing bolts 18.
  • Blown air therefore exits from the interior spaces 18.1 of the bearing bolts 18 into the feed bores 24 and flows through these and through the feed bores 23 in the upper-nose pliers 20 into the blown air bore 21.
  • the blown air is expelled from the blown air bore 21 through the outlet bores 22.
  • the expelled air streams press the fiber beard down onto the circular comb segment 26.
  • the clamp assembly In the front end position (FIG. 4) of the lower clamp frame 14, the clamp assembly is open.
  • the previously combed fiber beard is gripped by the tear-off cylinders 12, 13 and pulled through the fixed comb blade 17.
  • the detection of the fiber beard by the tear-off cylinders 12, 13 is not disturbed by air currents from the outlet bores 22 of the upper pliers knife 20, because when open Forceps unit, the inlet openings of the feed bores 24 in the upper tong arms 19 are not aligned with the outlet openings 18.2 of the bearing bolts 18.
  • the outlet openings 18.2 cooperating with the air supply bores 24 in the swiveling upper tongs arms 19 in the bearing bolts fastened in the lower tongs frame 14 thus ensure in a simple manner that the air supply is clocked into the blown air bore 21 of the upper tongs knife 20.
  • the air supply and thus the ejection of blown air through the outlet bores 22 only take place when the pliers unit is closed and during the opening and closing of the pliers unit.
  • the ejected air streams press the fiber beard to be combed down onto the circular comb segment 26.
  • the air streams sweep over the comb needles 17.2 of the fixed comb blade 17 and effectively clean them of contaminations that have got stuck. This means that the fixed comb is maintenance-free for a long time and can show its full effect over a longer period.
  • Fig. 5 shows in a similar vertical section as Fig. 4 again the tear-off cylinders 12, 13, the collet frame 14 with the collet plate 15 and the fixed comb 16, 17.
  • the upper clamp arms 19 with the air supply holes 24 are on the hollow bearing bolts 14 fastened in the collet frame 14 18 pivoted.
  • the upper tongs arms 19 carry an upper tongs knife 120 which is provided with a blown air duct.
  • the blown air channel is a cavity 121 in a tank 27 placed on a surface of the upper pliers knife 120.
  • the cavity 121 is connected to the ends of the supply bores 24 in the upper pliers arms 19 via supply channels 123 provided in the tank 27.
  • the blown air channel or cavity 121 has an air outlet opening in the form of a slot 122, which extends over the length of the top pliers knife 120. Through the slot 122 is when the pliers unit is closed and during Opening and closing of the pliers unit, blown air expelled, essentially with the same effects as described above for the embodiment according to FIGS. 1 to 4.
  • the part of the tank 27 covering the outlet slot 122 is cut obliquely at both ends, as shown at 28 in FIG. 6.
  • additional air outlet openings are formed from the blown air duct or cavity 121, the cross section of which is larger than the air outlet cross section of the slot 122 in the central region of the length of the top-knife 120.
  • the blown air flows ejected from the additional air outlet openings at the ends of the blown air duct 121 serve the side Keep the edges of the whiskers that are combed out compact.
  • the blown air supplied is controlled in such a way that the blown air flow is interrupted when the pliers unit is open, as described by the movement of the upper pliers arms 19 with respect to the lower pliers frame 14.
  • the pliers unit When the pliers unit is open, they are Air supply bores 24 in the upper tong arms 19 no longer aligned with the outlet openings 18.2 of the bearing bolts 18.

Landscapes

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

Claims (8)

  1. Agrégat de pinces pour une peigneuse, avec un cadre de pince inférieure (14) qui porte une plaque de pince inférieure (15), avec un peigne fixe (16, 17) possédant des aiguilles de peigne (17.2), lequel est porté par le cadre de pince inférieure, avec une partie supérieure de pince ayant des bras de pince supérieure (19; 119) qui sont reliés d'une manière oscillante avec le cadre de pince inférieure, et qui portent un couteau de pince supérieure (20; 120) agissant conjointement avec la plaque de pince inférieure (15), et avec un arrangement servant délivrer des courants d'air sur les aiguilles de peigne (17.2) du peigne fixe (16, 17), et sur des barbes de fibres restées coincées entre le couteau de pince supérieure (20; 120) et la plaque de pince inférieure (15),
    caractérisé par le fait que
    le couteau de pince supérieure (20; 120) est pourvu d'un canal d'air de soufflage (21; 121) qui possède au moins une ouverture de sortie d'air (22; 122) servant à expulser de l'air de soufflage dans la direction du peigne fixe (16, 17), et que la partie supérieure de pince (19, 20; 19, 120) est pourvue de moyens (18.2, 24, 23) servant à alimenter, d'une manière cyclique, l'air de soufflage dans le canal d'air de soufflage (21; 121).
  2. Agrégat de pince selon revendication 1,
    caractérisé par le fait que
    le canal d'air de soufflage est formé par un espace creux (21) pratiqué dans le couteau de pince supérieure (20).
  3. Agrégat de pinces selon revendication 1,
    caractérisé par le fait que
    le canal d'air de soufflage (121) est contenu dans un réservoir (27) assis sur une surface du couteau de pince supérieure (120).
  4. Agrégat de pinces selon une des revendications 1 à 3,
    caractérisé par le fait que
    l'ouverture de sortie d'air (122) est en forme de fente et s'étend sur la longueur du couteau de pince supérieure (120).
  5. Agrégat de pinces selon une des revendications 1 à 3,
    caractérisé par le fait que
    le canal d'air de soufflage (21) possède une rangée d'ouvertures de sortie d'air (22) réparties sur la longueur du couteau de pince supérieure (20).
  6. Agrégat de pinces selon une des revendications 1 à 5,
    caractérisé par le fait que
    le canal d'air de soufflage (121) possède des ouvertures de sortie d'air supplémentaires (28) situées sur ses extrémités, ouvertures qui possèdent une section plus grande que l'ouverture respectivement les ouvertures de sortie d'air (122) situées dans une zone médiane de la longueur du couteau de pince supérieure (120).
  7. Agrégat de pinces selon une des revendications 1 à 6,
    caractérisé par le fait que
    les moyens servant à alimenter l'air de soufflage comprennent des évidements (23) pratiqués dans le couteau de pince supérieure (20) qui se tiennent en liaison avec des perçages (24) pratiqués dans les bras de pince supérieure (19), et débouchent dans le canal d'air de soufflage (21; 121).
  8. Agrégat de pinces selon revendication 7,
    caractérisé par le fait que
    les perçages (24) pratiqués dans les bras de pince supérieure (19) partent depuis des perçages de maintien, dans lesquels viennent s'incorporer des tourillons creux (18) fixés dans le cadre de pince inférieure (14), tourillons qui possèdent chacun une ouverture de sortie radiale (18.2) partant de son espace creux (18.1).
EP19940810157 1993-03-29 1994-03-14 Dispositif de pinçage pour une machine de peignage Expired - Lifetime EP0619389B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH94793A CH686627A5 (de) 1993-03-29 1993-03-29 Zangenaggregat fur eine Kommaschine.
CH947/93 1993-03-29

Publications (2)

Publication Number Publication Date
EP0619389A1 EP0619389A1 (fr) 1994-10-12
EP0619389B1 true EP0619389B1 (fr) 1996-01-10

Family

ID=4198871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940810157 Expired - Lifetime EP0619389B1 (fr) 1993-03-29 1994-03-14 Dispositif de pinçage pour une machine de peignage

Country Status (4)

Country Link
EP (1) EP0619389B1 (fr)
CN (1) CN1098449A (fr)
CH (1) CH686627A5 (fr)
DE (1) DE59400081D1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727986B1 (fr) * 1994-12-13 1997-01-31 Schlumberger Cie N Dispositif pour enfoncer les fibres textiles dans le peigne circulaire d'une peigneuse rectiligne
US5600871A (en) * 1995-09-08 1997-02-11 Mandl; Gerhard Combing machine having pneumatic detachment assist
DE10033169B4 (de) * 1999-07-24 2016-12-22 Maschinenfabrik Rieter Ag Fixkamm einer Kämmaschine
EP2085505B1 (fr) * 2008-01-29 2012-05-16 Maschinenfabrik Rieter Ag Peigne fixe destiné à une peigneuse
CH707012A2 (de) * 2012-09-28 2014-03-31 Rieter Ag Maschf Fixkamm für eine Kämmmaschine.
CN103436998B (zh) * 2013-07-23 2016-05-18 经纬纺织机械股份有限公司 精梳机顶梳弹簧压板装置
DE102014105175A1 (de) * 2014-04-11 2015-10-29 TRüTZSCHLER GMBH & CO. KG Fixkamm für eine Kämmmaschine
CN111691017B (zh) * 2020-07-03 2022-03-08 徐州华通手套有限公司 一种开松装置及纺织用棉花处理设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326677C2 (de) * 1982-08-27 1985-09-05 Veb Kombinat Textima, Ddr 9010 Karl-Marx-Stadt Pneumatische Vorrichtung zum Reinigen einer Abreißvorrichtung und zur Begrenzung des Vlieses an Flachkämmaschinen
FR2637617B1 (fr) * 1988-10-14 1991-12-13 Schlumberger Cie N Brosse circulaire de peigneuse rectiligne
DE3937899C1 (fr) * 1989-11-15 1991-01-10 Staedtler & Uhl, 8540 Schwabach, De
CH680928A5 (fr) * 1990-02-26 1992-12-15 Rieter Ag Maschf
DE4130496A1 (de) * 1991-09-13 1993-03-18 Staedtler & Uhl Verfahren zum reinigen eines nadelstreifens, insbesondere eines fixkamms fuer textilvorbereitungsmaschinen, und nadelstreifen zur durchfuehrung des verfahrens

Also Published As

Publication number Publication date
CN1098449A (zh) 1995-02-08
EP0619389A1 (fr) 1994-10-12
CH686627A5 (de) 1996-05-15
DE59400081D1 (de) 1996-02-22

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