EP0351443B1 - Plaque à dents, notamment peigne rectiligne pour machines préparant des textiles et procédé pour nettoyer cette plaque - Google Patents

Plaque à dents, notamment peigne rectiligne pour machines préparant des textiles et procédé pour nettoyer cette plaque Download PDF

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Publication number
EP0351443B1
EP0351443B1 EP88111777A EP88111777A EP0351443B1 EP 0351443 B1 EP0351443 B1 EP 0351443B1 EP 88111777 A EP88111777 A EP 88111777A EP 88111777 A EP88111777 A EP 88111777A EP 0351443 B1 EP0351443 B1 EP 0351443B1
Authority
EP
European Patent Office
Prior art keywords
air
needle
needles
cover plate
needle strip
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
EP88111777A
Other languages
German (de)
English (en)
Other versions
EP0351443A1 (fr
Inventor
Josef Egerer
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.)
Staedtler and Uhl KG
Original Assignee
Staedtler and Uhl KG
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 to DE19873722481 priority Critical patent/DE3722481A1/de
Priority to EP88111777A priority patent/EP0351443B1/fr
Priority to DE8888111777T priority patent/DE3871788D1/de
Priority to ES198888111777T priority patent/ES2033381T3/es
Priority to AT88111777T priority patent/ATE76908T1/de
Application filed by Staedtler and Uhl KG filed Critical Staedtler and Uhl KG
Priority to IN690/CAL/88A priority patent/IN168968B/en
Publication of EP0351443A1 publication Critical patent/EP0351443A1/fr
Application granted granted Critical
Publication of EP0351443B1 publication Critical patent/EP0351443B1/fr
Priority to GR920401462T priority patent/GR3005119T3/el
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

Definitions

  • the invention is directed to a pinstripe, in particular a fixed comb for textile preparation machines and the like, comprising at least one row of needles fixed between two cover plates, the needle tips projecting beyond the inner edge of the cover plates by a certain amount, forming free passages between them the pinstrip is associated with a cleaning device for removing deposits that settle in the free passages, and a method for cleaning a corresponding pinstrip.
  • Such pinstripes can be arranged on different types of textile combs.
  • they are used as so-called fixed combs in combing machines for wool or synthetic fibers on the one hand and cotton on the other used.
  • the fixed comb must accomplish the cleaning of the fiber parts which are not detected by a circular comb arranged in front of the fixed comb in the direction of the fiber beard.
  • fixed combs are regularly heavily loaded and impurities in the wool or cotton, which can consist of straw parts or nits, are deposited on them. Short fibers or impurities then settle in the gaps between the flat needles, which extend in the longitudinal direction.
  • the cleaning blades or other cleaning elements must carry out a linear movement or the fixed comb, if it is arranged to be movable, must be guided past the cleaning elements when it is pulled back. Since the needles in the fixed comb strips are hardened and the cleaning elements must also be hardened, there is friction between cleaning elements and needles, which can lead to burrs forming on the needles. In any case, there are inevitable signs of wear.
  • the object of the invention is to create a pinstripe and a cleaning method for the latter, whereby a problem-free, gentle cleaning which makes machine stopping unnecessary, in particular also in cotton combing machines, with high operational reliability and reasonable design effort is achieved.
  • a pinstripe which comprises at least one air duct in order to guide an air stream for cleaning the free passages through it or past it.
  • Such an air flow can be triggered both by applying a negative or positive pressure.
  • the air flow provided in accordance with the invention reliably prevents larger amounts of contaminants from settling without the machine having to be interrupted for manual intervention and without mechanical wear and tear being caused by the cleaning.
  • mechanical cleaning arrangements it is also possible to use such a fixed comb in cotton combing machines in which, due to the restricted space Conditions previously it was generally not possible to clean the combs during operation.
  • At least some of the air channels are formed by an extension of the free passages between the needle tips in the direction of the area between the cover plates. This ensures that, starting from a source of compressed air or negative pressure, the air flow is passed through each free passage, so that it is ensured that the entire comb is cleaned evenly.
  • a first cover plate when viewed in the longitudinal direction of the needle, a first cover plate is shorter than the other, second cover plate, its inner edge running in the region of the beginning of the air ducts, and that an air guide plate extends outside the first cover plate, forming an Discharge closed air chamber extends into the area of the inner edge of the second cover plate.
  • This results in a forced air which is fed through the air chamber formed between the first cover plate and the air baffle to the air channels so that nozzle-like air passage openings are formed between the second cover plate and the air baffle and the different needles, so that the free passages between the needles can be cleaned by targeted air flows.
  • cover plates it should be noted that although covers made of sheet metal are generally used, the invention relates to covers or embeddings made of plastic, if provided.
  • each needle being designed as an embossed part and being additionally embossed on both sides in the area of the needle tips, so that the needle thickness in the area of the tips is reduced compared to the remaining shaft area, it can advantageously be provided that the embossing extends beyond the tip area , so that air channels are formed by the extended embossing area between the tip area and the shaft area.
  • the length of the air channels formed in this way is such that they are approximately 15 to 100%, in particular 60%, of the free needle board, i.e. of the peak area.
  • the free needle board i.e. of the peak area.
  • An extremely advantageous side effect when using a compressed air flow in the arrangement according to the invention is that the fiber beard, which is clamped in the pliers of the combing machines, is pressed against the circular comb segment. As a result, the fiber beard can penetrate the circular comb segment more easily.
  • an additional air outlet opening can be arranged in the region of the needle tips, using the compressed air supply which is provided anyway.
  • an air chamber in particular in the case of double needle strips which comprise at least two rows of needle strips running parallel to one another, it can be expedient for an air chamber to be arranged between the two rows of needles. Such an air chamber then guides an air flow to the free passages of the two rows of needles or away from them.
  • the above-mentioned object is also achieved by a method for cleaning a pinstrip, according to which it is provided that the pinstrips are cleaned by compressed air.
  • compressed air can be tapped in a particularly simple manner.
  • compressed air can be provided by bottles and the like.
  • a particularly good cleaning effect is achieved by impinging air on the pinstrip.
  • Such an impulse-like action acts as a back and forth sweeping of the individual contamination particles and leads to them being reliably released.
  • the air pulses in dependence on the comb play or the movements an optionally assigned pliers or another coordinated driven machine element of the combing machine are triggered.
  • the compressed air pulses are timed in such a way that the blown-out impurities are taken along by the subsequent work cycle of the circular comb, ie a compressed air pulse may no longer be emitted when the take-off rollers are pulling off.
  • a conventional pinstrip shown in FIGS. 1 and 2 comprises a series of needles 1a which are arranged between a first cover plate 2a and a second cover plate 3a.
  • the needles can be connected to one another by gluing or soldering.
  • the cover plates 2a and 3a are provided in particular when the needles are bonded to one another.
  • a tip area 4a is formed by embossing the needles starting from a point 5a, reducing their original thickness. The remaining section is referred to as shaft 6a.
  • the shaft area 7a is largely covered by the cover plates 2a, 3a, at most approx. 1 mm remains uncovered within the shaft area.
  • the length of the protruding needle tips 4a is referred to as the board V.
  • the first cover plate 2 is shorter compared to the second cover plate 3 in the direction of the longitudinal axis 9 of the needle, by an amount larger than an additional embossing section 10 of the needles 1, which has the length X having.
  • This additional embossing section 10 creates air channels 11 between the needles 1, which extend from below the inner edge 12 of the first, shorter cover plate 2 to the inner edge 13 of the second, longer cover plate 3 and open into the free passage F between two adjacent needles 1 .
  • the needles in this area have a reduced width B compared to a width A in the area of the shaft 7.
  • an air baffle 14 is provided, as shown in FIG. 5, which is connected to the first cover plate 2 to form an air chamber 15 all around, only the inner edge 16 of the air baffle 14 extending over the inner edge 12 of the first cover plate 2 extends approximately to the level of the inner edge 13 of the second air baffle 3, so that a free lateral passage 17, for example for a compressed air flow 18, which is introduced via a feed line 19 into the air chamber 15 from a compressed air source and then passes through this passage 17 into the air channels 11 between the needles 1, with the parallel inner edges 13, 16 of the second cover plate 3 or the air baffle 14, a type of nozzle is formed so that the contaminants 8 are entrained by the air flow 18.
  • FIG. 8 shows schematically how a pinstripe 31 or 31a according to the invention is arranged in a combing machine.
  • FIG. 8 shows a section of a circular comb 20 which engages in a fiber beard 21 which is periodically held and released by a pair of opening and closing pliers 22.
  • the fixed comb pinstripe 31a
  • the fixed comb is arranged above the circular comb 2o, the fiber beard 21 being pulled off by two pull-off rollers 23 and thereby being pulled through the spaces between the needles 1 of the fixed comb (pinstripe 31a).
  • a second air guide plate 24 is provided in the embodiment shown in section in FIG. 6, which is connected to the second cover plate 3 to form an air chamber 25 such that the inner edge 26 of the air guide plate 24 in the region of the inner edge 13 of the second cover plate 3 ends with the formation of a nozzle 27, through which a compressed air stream 29 supplied through an inlet opening 28 can emerge in order to increase the pressing action on the fiber beard 21 against the circular ridge 2o.
  • FIG. 7 shows a double-fix comb, which is constructed from two pin strips running parallel to one another, which are designed in principle as described in connection with FIG. 3.
  • the air chamber 15 ' which has an inlet 19', is formed in that the outer cover plates 3 are extended upwards beyond the needles 1 and in this way laterally limit the closed air chamber 15 '.
  • the air chamber 15 ' has an outlet opening 3o through which the air flow entering at 19' can be guided to the tip region 4 of the needles 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Cleaning In General (AREA)

Claims (12)

  1. Barrette à aiguilles (31, 31a), et en particulier peigne droit, pour machines de préparation de textiles et autres machines similaires, comprenant au moins une rangée d'aiguilles (1, 1a, 4) fixée en particulier entre deux tôles de recouvrement (2a, 3a, 2, 3), les pointes (4a) des aiguilles dépassant d'une valeur donnée, en formant des passages libres (F) entre elles, au-delà des bords intérieurs des tôles de recouvrement (2a, 3a, 2, 3) et un dispositif de nettoyage étant adjoint à la barrette à aiguilles (31, 31a) pour éliminer les dépôts se formant dans les passages libres (F), caractérisée en ce que la barrette à aiguilles (31, 31a) comprend au moins un canal d'air (11) afin de guider un courant d'air (17), destiné au nettoyage des passages libres (F), à travers ceux-ci ou le long de ceux-ci.
  2. Barrette à aiguilles selon la revendication 1, caractérisée en ce qu'au moins une partie des canaux d'air (11) est constituée par un prolongement des passages libres (F) entre les pointes d'aiguilles (4) en direction de la zone de la tige (7).
  3. Barrette à aiguilles selon la revendication 1 ou 2, caractérisée en ce qu'une première tôle de recouvrement (2), vue dans le sens de l'axe longitudinal (9) des aiguilles, est plus courte que la seconde tôle de recouvrement (3), et que son bord intérieur (12) s'arrête dans la zone du commencement des canaux d'air (11), et en ce qu'une tôle chicane (14) s'étend au-dehors de la première tôle de recouvrement (2), en formant une chambre d'air (15, 15') fermée à l'exception d'une conduite d'amenée ou de dérivation (19, 19'), et s'étend de préférence jusque dans la zone du bord intérieur (13) de la seconde tôle de recouvrement (3).
  4. Barrette à aiguilles selon l'une des revendications 1 à 3, dans laquelle chaque aiguille est réalisée en tant que pièce frappée et qu'elle est particulièrement estampée des deux côtés dans la zone des pointes d'aiguilles, de telle manière que l'épaisseur des aiguilles soit réduite dans la zone des pointes par rapport à la zone restante de la tige, caractérisée en ce que l'empreinte (10) s'étend au-delà de la zone des pointes (4) de telle manière que des canaux d'air (11) sont formés par la zone d'empreinte prolongée (10) ente la zone de la pointe (4) et la zone de la tige (7).
  5. Barrette à aiguilles selon la revendication 4, caractérisée en ce que la longueur (X) des canaux d'air (11) ainsi formés représente environ 15 à 100 %, et de préférence environ 60 %, de la partie en saillie libre (V) de l'aiguille.
  6. Barrette à aiguilles selon l'une des revendications 1 à 5, caractérisée en ce qu'un orifice supplémentaire de sortie d'air (buse 27) est situé dans la zone des pointes d'aiguilles (4).
  7. Barrette à aiguilles selon la revendication 6, caractérisée en ce que l'orifice supplémentaire de sortie d'air (buse 27) est formé par une tôle chicane (24) placée à l'extérieur de la seconde tôle de recouvrement (3).
  8. Barrette à aiguilles, en particulier barrettes à aiguilles doubles, comprenant aux moins deux rangées d'aiguilles, caractérisée en ce qu'une chambre d'air (15') est située entre les deux rangées d'aiguilles (1).
  9. Procédé pour le nettoyage d'une barrette à aiguilles selon l'une des revendication 1 à 8, caractérisé en ce que la barrette à aiguilles (31, 31a) est nettoyée par de l'air comprimé.
  10. Procédé selon la revendication 9, caractérisé en ce que l'air est appliqué sous forme d'impulsions à la barrette à aiguilles (31, 31a).
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce que les impulsions d'air sont déclenchées en fonction du cycle du peigne ou des mouvements d'une pince associée, le cas échéant, ou d'un autre élément de la peigneuse entraîné de manière coordonnée.
  12. Procédé selon la revendication 10, caractérisé en ce que l'alimentation en air est déclenchée par une horloge.
EP88111777A 1987-07-08 1988-07-21 Plaque à dents, notamment peigne rectiligne pour machines préparant des textiles et procédé pour nettoyer cette plaque Expired - Lifetime EP0351443B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE19873722481 DE3722481A1 (de) 1987-07-08 1987-07-08 Nadelstreifen, insbesondere fixkamm, fuer textilvorbereitungsmaschinen und dgl. und verfahren zum reinigen eines derartigen nadelstreifens
DE8888111777T DE3871788D1 (de) 1988-07-21 1988-07-21 Nadelstreifen, insbesondere fixkamm, fuer textilvorbereitungs-maschinen u. dgl. und verfahren zum reinigen eines derartigen nadelstreifens.
ES198888111777T ES2033381T3 (es) 1988-07-21 1988-07-21 Tira de agujas, en especial peine fijo, para maquinas de preparacion de productos textiles y similares, asi como procedimiento para la limpieza de una tira de agujas de este tipo.
AT88111777T ATE76908T1 (de) 1988-07-21 1988-07-21 Nadelstreifen, insbesondere fixkamm, fuer textilvorbereitungs-maschinen u. dgl. und verfahren zum reinigen eines derartigen nadelstreifens.
EP88111777A EP0351443B1 (fr) 1988-07-21 1988-07-21 Plaque à dents, notamment peigne rectiligne pour machines préparant des textiles et procédé pour nettoyer cette plaque
IN690/CAL/88A IN168968B (fr) 1988-07-21 1988-08-17
GR920401462T GR3005119T3 (fr) 1988-07-21 1992-07-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88111777A EP0351443B1 (fr) 1988-07-21 1988-07-21 Plaque à dents, notamment peigne rectiligne pour machines préparant des textiles et procédé pour nettoyer cette plaque

Publications (2)

Publication Number Publication Date
EP0351443A1 EP0351443A1 (fr) 1990-01-24
EP0351443B1 true EP0351443B1 (fr) 1992-06-03

Family

ID=8199129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111777A Expired - Lifetime EP0351443B1 (fr) 1987-07-08 1988-07-21 Plaque à dents, notamment peigne rectiligne pour machines préparant des textiles et procédé pour nettoyer cette plaque

Country Status (6)

Country Link
EP (1) EP0351443B1 (fr)
AT (1) ATE76908T1 (fr)
DE (2) DE3722481A1 (fr)
ES (1) ES2033381T3 (fr)
GR (1) GR3005119T3 (fr)
IN (1) IN168968B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937899C1 (fr) * 1989-11-15 1991-01-10 Staedtler & Uhl, 8540 Schwabach, De
DE4205006C2 (de) * 1992-02-19 1995-05-04 Staedtler & Uhl Garnitur aus Sägezahnstanzteilen für Textil-Kämm-Maschinen
EP0580549B1 (fr) * 1992-07-22 1995-08-16 Maschinenfabrik Rieter Ag Unité de peigne supérieure pour une machine de peignage
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
CH691480A5 (de) * 1996-09-03 2001-07-31 Rieter Ag Maschf Nadelstreifen einer Textilmaschine.
DE10033169B4 (de) * 1999-07-24 2016-12-22 Maschinenfabrik Rieter Ag Fixkamm einer Kämmaschine
DE20003070U1 (de) * 2000-02-19 2000-04-20 Staedtler & Uhl, 91126 Schwabach Fixkamm für eine Kämm-Maschine
ITMI20040020A1 (it) * 2004-01-12 2004-04-12 Aldo Ceriani Pettinatrice con pettine perfezionato particolarmente per cotone e altre fibre
BRPI0911362A2 (pt) 2008-04-07 2016-07-05 Marzoli Spa dispositivos de controle para sopradores de pentes retilíneos para máquinas penteadeiras, e, máquinas penteadeiras.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB835398A (en) * 1957-10-04 1960-05-18 Alsacienne Constr Meca Cleaning device for the top comb of textile combing machines
DE2846065A1 (de) * 1978-10-23 1980-04-30 Schlafhorst & Co W Walzenstreckwerk
IT7967916A0 (it) * 1979-05-02 1979-05-02 Sant Andrea Novara Officine Dispositivo pulitore per il pettine rettilineo di macchine pettinatrici di fibre tessili
JPS6030763B2 (ja) * 1980-09-19 1985-07-18 株式会社豊田自動織機製作所 コ−マにおけるフリ−ス姿勢制御装置
DE3138350A1 (de) * 1981-09-26 1983-04-14 Alfred 8246 Langwiesen Weber Nadelstab fuer textilmaschinen

Also Published As

Publication number Publication date
EP0351443A1 (fr) 1990-01-24
GR3005119T3 (fr) 1993-05-24
ATE76908T1 (de) 1992-06-15
IN168968B (fr) 1991-07-27
ES2033381T3 (es) 1993-03-16
DE3871788D1 (de) 1992-07-09
DE3722481A1 (de) 1989-01-26

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