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EP0322694B1 - Dispositif d'entraînement du cylindre d'alimentation d'une machine peigneuse - Google Patents

Dispositif d'entraînement du cylindre d'alimentation d'une machine peigneuse Download PDF

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Publication number
EP0322694B1
EP0322694B1 EP88121196A EP88121196A EP0322694B1 EP 0322694 B1 EP0322694 B1 EP 0322694B1 EP 88121196 A EP88121196 A EP 88121196A EP 88121196 A EP88121196 A EP 88121196A EP 0322694 B1 EP0322694 B1 EP 0322694B1
Authority
EP
European Patent Office
Prior art keywords
feed
coupling means
nippers
arm
feed roller
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
EP88121196A
Other languages
German (de)
English (en)
Other versions
EP0322694A1 (fr
Inventor
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 EP0322694A1 publication Critical patent/EP0322694A1/fr
Application granted granted Critical
Publication of EP0322694B1 publication Critical patent/EP0322694B1/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
    • D01G19/26—Driving 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
    • D01G19/08—Feeding apparatus

Definitions

  • the present invention relates to a drive device for the feed cylinder of a combing machine according to the preamble of claim 1 and to a method for carrying out a mixed feed.
  • Such a device is already known from DE-AS 1139414, wherein a switching wheel is rotated via a pawl by the reciprocating movement of the pliers.
  • the ratchet wheel is rotatably connected to a feed roller, which also rotates the same.
  • the back and forth movement of the pliers takes place via a swivel arm articulated in the rear area of the lower pliers, which is firmly connected to a drive shaft at its end opposite the articulation point.
  • the drive of this drive shaft is designed so that it generates reverse directions of rotation at predetermined time intervals and thus causes the pliers to move back and forth.
  • another articulated arm is rotatably articulated, the other free end of which is rotatably mounted on the axis of rotation of the circular comb. It is a four-bar drive.
  • the upper tongs are rotatably mounted on the lower tongs about an axis of rotation and can be rotated in their rear region with a spring-loaded swivel arm connected, which is rotatably mounted on the drive axis.
  • the corresponding arrangement of the articulation points of the upper and lower pliers results in a displacement of the rear articulation point of the upper pliers with respect to the axis of rotation of the upper pliers on the lower pliers.
  • the tongs close during their backward movement and, via the switching pawl indirectly connected to the top tongs, generate a rotary movement of the switching wheel and thus also a rotary movement of the feed roller, whereby the cotton wool is shifted forward by a certain amount of food.
  • the supply can take place in the feed or in the return of the pliers.
  • a feed roller drive is known from the GDR patent specification 218782 A3, in which the change from forward to return drive is easier.
  • the movement of the feed roller takes place using gearwheels actuated by ratchets and the change between forward and reverse drive by moving the pawls into their working or rest position.
  • this arrangement has the disadvantages of an increase in the noise level due to the interaction of the pawls and the ratchet wheels.
  • the latter has the features listed in the characterizing part of claim 1. It thus has the advantage that the feeds of the feed cylinder are practically always of the same size and thus there is an improvement in the sliver produced.
  • the feeds, which are always of the same size are based on the fact that, in the case of a freewheel based on clamping bodies, the free travel which occurs when changing from the idling position to the clamping position, ie the play which occurs, can be kept very small. This means that the feeds of the feed cylinder are always of practically the same size.
  • This device favors the implementation of a method, wherein the portion of the food amount can be made proportionately with the forward and return movement of the tongs unit.
  • Fig. 1 shows a side wall of a carrier 11. This carries a shaft perpendicular to the image plane, on which an arm 12 which is pivotable about the axis 13 is attached.
  • the upper pliers 14 of a combing pliers are attached to the arm 12.
  • a freewheel 15 comprises an inner part 16, an outer part 17, and clamping bodies 18 arranged between them.
  • a holder 19 is fixedly connected to the outer part 17.
  • the inner part 16 is firmly connected to a feed cylinder 20 of the combing machine. This can be done, for example, in such a way that it is attached coaxially to the feed cylinder 20. The latter is covered by the freewheel 15 in FIG. 1.
  • the feed cylinder 20 is coupled to the arm 12 by a coupling which, in addition to the freewheel 15 and the holder 19, also comprises a push rod 21. This is attached in a crank-like manner to the holder 19 and the arm 12. In two openings in the carrier 11 there are holding rods 24 arranged perpendicular to the plane of the drawing, which serve to move the carrier 11 back and forth and thus to pivot the upper tongs 14.
  • the known freewheel 15 is shown only schematically in Fig. 1. However, an example of a practical embodiment of such is shown in FIG. 2.
  • the inner part 16 is of circular cylindrical shape.
  • its inner lateral surface has a sawtooth shape in cross section with rising and falling parts 22 and 23, respectively.
  • the clamping bodies 18 are provided between the inner part 16 and the outer part 17. These can be designed, for example, as cylinders or balls. These rolling elements 18 have when in are close to the edges 44, some play. In the position shown, however, they are in a pinched position.
  • FIG. 3 shows a view of the side wall of the carrier 11, which is opposite the side wall shown in FIG. 1, each of the walls being at one end of the feed cylinder 20. It should be noted that in FIG. 3 the right and left are reversed with respect to FIG. 1. While the front of the drive device according to FIG. 1 is on the right, it is on the left in FIG. 3.
  • FIG. 3 in turn shows the upper tongs 14, the feed cylinder 20 and the two holding rods 24.
  • the end of the upper tongs 14 visible in FIG. 3 is fastened to a further arm 25 which can also be pivoted about the axis 13.
  • a second freewheel 27 is located on the side of the drive device shown in FIG. 3. This can also be designed as shown in FIG. 2. Its inner part 28 is in turn fixed to the feed cylinder 20 covered by the freewheel 27 in FIG. 3, and its outer part 29 is fixedly connected to a holder 30. A push rod 31 is in turn connected to the parts 25 and 30 in a crank-like manner.
  • the pliers are opened by the arm 12 being pivoted upward about the pivot axis 13 into the position 12 '.
  • the push rod 21 is carried and moved into the position 21 shown in broken lines'.
  • the bracket 19 is rotated in its dashed position 19 '.
  • the outer part 17 of the freewheel 15 which is fixed with the holder 19 is also rotated, i.e. rotates counterclockwise.
  • FIG. 2 there is a jamming of the clamping bodies 18, so that the inner part 16 of the freewheel 15 and thus the feed cylinder 20 fixed with it are also taken along. The latter thus causes the fiber template (not shown) to be fed in the forward direction (i.e. to the right in FIG. 1).
  • the pliers are closed at the same time, the arm 12 being pivoted downward about the axis 13.
  • the push rod 21 presses the holder 19 down into its starting position.
  • the outer part 17 is rotated clockwise, as a result of which the clamping bodies 18 are moved towards the falling parts 23 shown in FIG. 2.
  • the push rod 31 is in the position shown in dashed lines 31 'moves.
  • the bracket 30 is taken along and rotates the outer part 29 of the freewheel against the direction of the same, i.e. in empty gear. Therefore, the feed cylinder 20 is not moved.
  • the arm 25 is rotated about the pivot axis 13 from its position 25 'back to its starting position and the upper tongs 14 are brought back into their closed position.
  • the push rod 31 and the bracket 30 again from their positions 31 'and 30' back to their starting position.
  • the outer part is rotated in the driving direction of the freewheel 27, ie clockwise according to FIG. 3, and the feed cylinder 20 is rotated clockwise by the inner part 28 which is carried along, so that the fiber template is pushed forward, ie according to FIG. 3 to the left .
  • the upper pliers 14 are fully returned, the fibers are clamped by the combing pliers and the combing movement then takes place. 3, a feed movement takes place step by step with each backward movement of the drive device, which corresponds to a return feed.
  • the push rod 21 is inserted in the drive device according to FIGS. 1 and 3 and the push rod 31 is out of operation, then this operates with feed. Reverse feed is available for reverse use. If both rods 21 and 31 are inserted at the same time, the combing forceps will find between two successive closing movements, i.e. between two successive combing movements two movements of the feed roller 20 and thus two thrusts of the fiber template take place. In this way, the amount of fiber material presented per combing movement can be varied.
  • a method can be carried out in which the predetermined and necessary feed amount during a comb play can be divided proportionally between the forward and the return movement of the tongs.
  • the supply is thus quasi continuous and reduced by the lower one Transport speed the load on the drives or the feed roller.
  • the share of the meal can be pre-selected as required.
  • FIG. 3 Another example of the procedure for achieving such a variation in the amount of fiber material supplied per combing process is explained with reference to FIG. 3.
  • three different fixing points 32, 33, 34 are provided on the arm 25, at which the upper end of the push rod 31 in FIG. 3 can be fastened. These fixing points are at different distances from the pivot axis 13, so that when the arm 25 pivots, they move by differently large distances and thus cause pushes of different sizes.
  • the angular positioning of the holder 30 and the radial distance from the fastening of the push rod 31 to the holder 30 from the axis of rotation of the freewheel can also be used to vary the strokes.
  • a freewheel 15, 27 is provided at each end of the feed cylinder 20.
  • a feed cylinder not shown, is in turn firmly assembled with the inner part 35 of a freewheel 36.
  • Two brackets 37, 38 which are opposite each other with respect to the axis of rotation 48 of the freewheel 36, are fixedly connected to the outer part 39 of the freewheel 36.
  • the holder 37 is coupled to an arm 42 by means of a push rod 40 and the holder 38 by means of a push rod 41.
  • This carries, together with a second arm, upper tongs 14 and is pivotable about a pivot axis 13.
  • the swiveled positions are again drawn with dashed lines. The forward movement of the drive device or the carrier 11 takes place to the right.
  • the freewheel 36 is also of the type shown in FIG. 2 and that one of the rods 40, 41 is mounted alternately and the other is disassembled or otherwise rendered ineffective. It can thus be seen that when the upper tongs 14 are moved upwards, i.e. when the carrier 11 moves to the right, by pulling on the rod 40 the feed cylinder is rotated, and when the upper tong 14 is subsequently lowered, i.e. of the arm 42, the freewheel 36 is not rotated the feed cylinder. Thus, when the rod 40 is installed, there is a feed supply.
  • brackets 19 and 30 are also possible, for example is to fix the brackets 19 and 30 to the inner parts 16, 28 and the feed cylinder 20 to the outer parts 17, 29 in an arrangement corresponding to FIGS. 1 and 3.
  • the space available for the sprags 18 in idle i.e. the game for the clamping body 18, dimensioned tighter than that shown in FIG. 2.
  • the space conditions are such that there is only a small amount of play around the clamping bodies 18 only in the position in which they are located in the immediate vicinity of the edge 44. This ensures that the idle travel mentioned in the introduction, when changing from the idle position to the clamping position and vice versa, is very small.
  • FIG. 5 Another, commercially available freewheel, which is advantageous because of the small amount of food and also inexpensive, is shown in Fig. 5. It in turn comprises an inner part 45, an outer part 46 and clamping bodies 47 attached between them.
  • FIG. 6 A further embodiment variant is shown in FIG. 6, wherein instead of the lever 31 and the holder 30 (FIG. 3), two tooth segments 49 and 50 establish the mechanical connection between the freewheel, or the clutch 27 and the arm 25.
  • the toothed segment 49 is fastened on the outer part 29 and is in engagement with a toothed segment 50, which is fixed coaxially to the axis 13 by means of screws 51 in the circumferential direction.
  • This shifting option allows an engagement time to be set, from which the engagement in the toothed segment 49 is to take place. This in turn gives a measure of the food amount.
  • the pliers are in the rear position, i.e. the movement of tooth segment 50 or 49 up to this position has been fed via the feed cylinder in the return.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Transmission Devices (AREA)

Claims (10)

1. Dispositif d'entraînement du cylindre d'alimentation (20) d'une peigneuse, dans lequel la pince de peigneuse effectue un mouvement de va-et-vient pendant un cycle de peignage, et est ouverte dans une position avancée et fermée dans une position reculée, et l'ouverture et la fermeture de la pince de peigneuse sont réalisées par des mouvements pivotants d'une pince supérieure (14) fixée sur l'une des extrémités des bras pivotants (12, 25, 42), et l'un des bras pivotants (12, 25, 42) est accouplé avec une extrémité du cylindre d'alimentation (20) par un accouplement (15, 21; 27, 31; 36, 40, 41), afin de produire un mouvement d'alimentation pas à pas du cylindre d'alimentation (20), et l'accouplement (15, 21; 27, 31; 36, 40, 41) n'est agissant que pour les mouvements pivotants s'effectuant dans l'une des direction, caractérisé par le fait que l'accouplement (15, 21; 27, 31; 36, 40, 41) comprend une roue libre (15, 27, 36) avec une partie intérieure (16, 28, 35, 45), une partie extérieure (17, 29, 39, 46) et avec des corps de serrage (18, 43, 47) situés entre ces parties, et où l'une de ces parties est fixée avec l'une des extrémités du cylindre d'alimentation (20) et l'autre de ces parties est fixée avec une attache (19, 30, 37, 38), et que l'accouplement comprend en outre une tige de course (21, 31, 40, 41) qui est fixée comme un vilebrequin avec l'un des bras (12, 25, 42) et avec l'attache (19, 30, 37, 38).
2. Dispositif selon revendication 1, caractérisé par le fait que le cylindre d'alimentation (20) est accouplé à chacune de ses extrémités avec un bras (12, 25), et où, en plus du premier accouplement (15, 21), un deuxième accouplement (27, 31) est prévu accouplé avec la deuxième extrémité du cylindre d'alimentation (20), que le premier accouplement (15, 21) agit lors des mouvements d'ouverture et le deuxième accouplement (27, 31) lors des mouvements de fermeture de la pince de peigneuse, et que, au choix, un des accouplements (15, 21; 30, 31) ou les deux accouplements (15, 21; 30, 31) est respectivement sont mis en action.
3. Dispositif selon revendication 1, caractérisé par le fait que la partie extérieure (39) de la roue libre (36) est pourvue de deux attaches (37, 38) qui sont disposées face à face par rapport à l'axe de rotation (48) de la roue libre (36), que la tige de course (40), citée dans la revendication 1, respectivement une deuxième tige de course (41) sont accouplées à la manière d'un vilebrequin avec les attaches (37, 38) et le bras (42), que, lors des mouvements d'ouverture de la pince (14), il se produit une force de traction qui agit sur l'une des attaches (37), et, lors des mouvements de fermeture de la pince (14), il se produit une force de poussée sur la deuxième attache (38), et que, au choix, l'une des tiges de course (40) ou l'autre tige de course (41) est mise en action.
4. Dispositif selon revendication 1, caractérisé par le fait que l'importance de la course du cylindre d'alimentation (20) peut être variée par un choix approprié de la position de l'attache (30) et/ou du lieu de fixation (32, 33, 34) de la tige de course (31) sur le bras (25).
5. Dispositif selon revendication 1, caractérisé par le fait que la partie intérieure (16, 28, 35) de la roue libre (15, 27, 36) est disposée d'une manière coaxiale par rapport au cylindre d'alimentation (20).
6. Dispositif d'entraînement du cylindre d'alimentation (20) d'une peigneuse, dans lequel la pince de peigneuse effectue un mouvement de va-et-vient pendant un cycle de peignage, et est ouverte dans une position avancée et fermée dans une position reculée, et l'ouverture et la fermeture de la pince de peigneuse sont réalisées par des mouvements pivotants d'une pince supérieure (14) fixée sur l'une des extrémités des bras pivotants (25), et l'un des bras pivotants (25) est accouplé avec une extrémité du cylindre d'alimentation (20) par un accouplement (27, 49, 50), afin de produire un mouvement d'alimentation pas à pas du cylindre d'alimentation (20), et l'accouplement (27, 49, 50) n'est agissant que pour les mouvements pivotants s'effectuant dans l'une des direction, caractérisé par le fait que l'accouplement (27, 49, 50) comprend une roue libre (27) avec une partie intérieure (28), une partie extérieure (29) et avec des corps de serrage (18, 43, 47) situés entre ces parties, et où l'une de ces parties est fixée avec l'une des extrémités du cylindre d'alimentation (20) et l'autre de ces parties est pourvue d'un segment denté (48), et que l'accouplement comprend en outre un segment denté supplémentaire (50) qui est relié avec l'un des bras (25) et qui engrène le premier segment denté (49) ou peut être mis en engrènement avec celui-ci.
7. Dispositif selon revendication 6, caractérisé par le fait que le segment denté (50) relié avec l'un des bras (25) est fixé d'une manière coaxiale par rapport à l'axe de pivotement (13) du bras (25).
8. Dispositif selon revendication 7, caractérisé par le fait que le segment denté (50) est fixé d'une manière détachable et pivotante autour de l'axe de pivotement (13).
9. Procédé pour réaliser une alimentation pas à pas d'une longueur prédéterminée d'une nappe de fibres pendant un cycle de peignage d'une peigneuse à l'aide d'un cylindre d'alimentation qui est maintenu dans une pince de peigneuse effectuant un mouvement d'avance et de recul, et, par l'ouverture ou la fermeture de la pince de peigneuse réalisant des mouvements d'alimentation pas à pas, caractérisé par le fait que la longueur prédéterminée de la quantité d'alimentation pendant un cycle de peignage se fait en partie par l'ouverture et la fermeture de la pince de peigneuse pendant l'avance et le recul.
10. Procédé selon revendication 9, caractérisé par le fait que la portion de la quantité d'alimentation du mouvement d'avance et de recul peut être choisie au préalable.
EP88121196A 1987-12-24 1988-12-17 Dispositif d'entraînement du cylindre d'alimentation d'une machine peigneuse Expired - Lifetime EP0322694B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5059/87 1987-12-24
CH505987 1987-12-24

Publications (2)

Publication Number Publication Date
EP0322694A1 EP0322694A1 (fr) 1989-07-05
EP0322694B1 true EP0322694B1 (fr) 1992-01-29

Family

ID=4287253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121196A Expired - Lifetime EP0322694B1 (fr) 1987-12-24 1988-12-17 Dispositif d'entraînement du cylindre d'alimentation d'une machine peigneuse

Country Status (9)

Country Link
US (1) US4958413A (fr)
EP (1) EP0322694B1 (fr)
JP (1) JPH01192830A (fr)
KR (1) KR910006255B1 (fr)
CN (1) CN1016974B (fr)
BR (1) BR8806869A (fr)
DD (1) DD283427A5 (fr)
DE (1) DE3868257D1 (fr)
IN (1) IN172069B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641979B4 (de) * 1996-10-11 2007-01-04 Maschinenfabrik Rieter Ag Verfahren und Vorrichtung zum Steuern der Antriebsbewegungen einer Kämmaschine, insbesondere einer Baumwollkämmaschine
CN100334266C (zh) * 2005-12-20 2007-08-29 东华大学 环保型生物－化学法纺织用纤维的制取
CH701420A2 (de) * 2009-07-10 2011-01-14 Rieter Ag Maschf Vorrichtung zur Bildung eines Faserbandes.
ITBS20120123A1 (it) 2012-07-27 2014-01-28 Marzoli Spa Metodo di registrazione dell'avanzamento di un velo di fibre ai cilindri strappatori di una pettinatrice e relativo kit
CH709308A2 (de) * 2014-02-26 2015-08-28 Rieter Ag Maschf Elektromotorisch angetriebener Speisezylinder für ein Zangenaggregat einer Kämmmaschine.
CN106894117B (zh) * 2017-05-06 2021-04-23 青岛源泉机械有限公司 能够自动送料的平梳机
CN114983512B (zh) * 2022-08-05 2022-10-25 中国人民解放军联勤保障部队第九〇一医院 一种用于急诊内科的紧急止血设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US512538A (en) * 1894-01-09 Bicycle
US289110A (en) * 1883-11-27 Daniel b
CH92086A (de) * 1920-09-10 1921-12-01 August Helmbold Paul Antriebsvorrichtung für die Abreisswalze an Kämmaschinen.
US1446750A (en) * 1920-12-31 1923-02-27 Whitin Machine Works Combing machine
FR962520A (fr) * 1945-01-04 1950-06-14
DE1139414B (de) * 1957-06-01 1962-11-08 Rieter Joh Jacob & Cie Ag Speisewalzenantrieb fuer Kaemmaschinen
US3004300A (en) * 1957-06-01 1961-10-17 Joh Jacob Rieter & Co Ltd Feed roller arrangement in a combing machine
US3400431A (en) * 1967-01-27 1968-09-10 Whitin Machine Works Comber nipper feed system
US3604063A (en) * 1969-05-02 1971-09-14 Maremont Corp Textile comber detaching roll drive
JPS5966033U (ja) * 1982-10-26 1984-05-02 光洋精工株式会社 一方クラツチ
DD218782A3 (de) * 1982-12-16 1985-02-13 Spinnereimaschinenbau Kmst Veb Speisewalzenantrieb fuer kaemmaschinen
JPH0615727B2 (ja) * 1984-04-16 1994-03-02 株式会社豊田自動織機製作所 コ−マにおけるラツプ送り出し方法

Also Published As

Publication number Publication date
DD283427A5 (de) 1990-10-10
CN1034230A (zh) 1989-07-26
DE3868257D1 (de) 1992-03-12
IN172069B (fr) 1993-03-27
EP0322694A1 (fr) 1989-07-05
BR8806869A (pt) 1989-08-29
KR890010311A (ko) 1989-08-08
JPH01192830A (ja) 1989-08-02
KR910006255B1 (ko) 1991-08-19
US4958413A (en) 1990-09-25
CN1016974B (zh) 1992-06-10

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