EP0359915B2 - Système d'étirage pour un métier à filer, en particulier pour un banc d'étirage - Google Patents

Système d'étirage pour un métier à filer, en particulier pour un banc d'étirage Download PDF

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Publication number
EP0359915B2
EP0359915B2 EP89111509A EP89111509A EP0359915B2 EP 0359915 B2 EP0359915 B2 EP 0359915B2 EP 89111509 A EP89111509 A EP 89111509A EP 89111509 A EP89111509 A EP 89111509A EP 0359915 B2 EP0359915 B2 EP 0359915B2
Authority
EP
European Patent Office
Prior art keywords
rolls
drawing system
roll
holding means
guides
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
EP89111509A
Other languages
German (de)
English (en)
Other versions
EP0359915B1 (fr
EP0359915A1 (fr
Inventor
Bernhard Dipl.-Ing. Zimmermann (Fh)
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.)
Truetzschler GmbH and Co KG
Original Assignee
Truetzschler GmbH and Co 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
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Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP0359915A1 publication Critical patent/EP0359915A1/fr
Publication of EP0359915B1 publication Critical patent/EP0359915B1/fr
Application granted granted Critical
Publication of EP0359915B2 publication Critical patent/EP0359915B2/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/44—Adjusting drafting elements, e.g. altering ratch
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46—Loading arrangements
    • D01H5/52—Loading arrangements using fluid pressure
    • D01H5/525—Loading arrangements using fluid pressure for top roller arms
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/56—Supports for drafting elements
    • D01H5/565—Top roller arms

Definitions

  • the invention relates to a drafting system for a spinning machine, in particular for a draw frame, with lower rollers arranged in mutually stationary manner in punches and with upper rollers assigned to the lower rollers, which are held with pressure arms attached to the punches and which can be moved away from the lower rollers by pivoting the pressure arms away.
  • the invention is based on the idea of simplifying a drafting system of the type mentioned at the outset and yet ensuring with sufficient certainty that the rollers are exactly aligned with one another.
  • punches are provided with guides in which, in the closed state, at least one of the top rollers is guided and aligned with the bottom rollers.
  • the top rollers are held by means of elastically flexible holding means. This ensures that there are no overdeterminations and that only the guides of the punches determine the position of the top rollers. Due to the elastically flexible holding means, differences in the infeed movement can be easily compensated for.
  • axle bodies of the top rollers are each provided with two parallel guide surfaces, to which corresponding guides approximately aligned radially to the associated bottom roller are assigned. In this way, a clearly defined orientation is obtained.
  • the guides for at least one of the upper rollers are part of holding devices which are adjustably attached to the punches in the circumferential direction of the associated lower roller.
  • the top rollers which are adjustable in the circumferential direction of the bottom rollers, can be precisely aligned with the bottom rollers.
  • the top rollers must of course be kept correspondingly adjustable.
  • the drafting system which is shown only very schematically in FIG. 1, has three lower rollers (11, 12, 13) arranged in a stationary manner in punches (10), which are driven in a manner not shown in detail.
  • Upper rollers (15, 16, 17, 18) are assigned to these lower rollers (11, 12, 13), the roller pairs (13, 18) and (12, 17) being a pre-drafting zone and the roller pairs (12, 16) and (11, 15) form a main default area.
  • the upper rollers (15, 16, 17, 18) are held on both sides by pressure arms (14) which are mounted on the punches (10) so as to be pivotable about a pivot axis (23) parallel to the lower rollers (11, 12, 13).
  • the operating position of the pressure arms (14) shown can be locked in a manner not shown.
  • the upper rollers (15, 16, 17, 18) are pivoted away from the lower rollers (11, 12, 13) so that the drafting system is opened generously.
  • the top rollers (15, 16, 17, 18) have axle bodies (21) which are delimited by two lateral, parallel surfaces. With these axle bodies (21) they engage in guides (19) which are aligned essentially radially to the associated lower rollers (11, 12, 13). When the pressure arms (14) are closed, the axle bodies (21) enter the corresponding guides (19). As will be explained later, the axle bodies (21) are held elastically transversely to the guide surfaces, so that they can be easily inserted into the guides (19) when the pressure arms are closed.
  • the guides (19) for the top rollers (15, 17) are attached directly in the punches (10). These top rollers (15, 17) are held in the pressure arms (14) with an unchangeable position.
  • the upper rollers (16, 18) are arranged so as to be adjustable in the circumferential direction of the associated lower rollers (12, 13).
  • a slot guide (50) is shown for the upper roller (16), in which a holder (51) of the upper roller (16) is adjustably guided. When the pressure arms (14) are in the closed position, this slot guide (51) runs concentrically with the associated lower roller (12).
  • a corresponding adjustment possibility can be provided for the pressure roller (18).
  • the guides (19) for the upper rollers (16, 18) are part of holding devices (22) which are mounted concentrically to the lower rollers (12, 13) in the punches and can be rotated.
  • the guides (19) of these holding devices (22) therefore maintain their respective alignment with the lower roller (12, 13) with each adjustment.
  • the upper rollers (15, 17) are provided with loading devices in the form of hydraulic or pneumatic pressure elements (30).
  • the upper rollers (16, 18) can be equipped with load devices in a corresponding manner. However, it is also possible to attach different types of loading devices to these, as will be explained later in the present application.
  • this top roller (18) is fixed by means of holding elements (28) which can be adjusted in guides (29) of the pressure arms (14) and which also carry the pressure elements (27) for the top roller (18) .
  • a preferably motorized adjustment drive (24) is provided for the holding device (22).
  • This consists of a shaft (52), which is preferably adjustable by motor and possibly also manually, which drives a crank (53) to which a push crank (54) is articulated, which in turn is connected to the holding device (22).
  • the shaft (52) expediently extends across the entire drafting system and connects the holding devices (22) arranged on both sides so that they run synchronously.
  • the holding device (22) consists of a plate-shaped base body which is provided with a cylindrical extension (31) in which the lower roller (12) is mounted with bearings (32).
  • the cylindrical extension (31) is in turn rotatably arranged in the punch (10).
  • the base body of the holding device (22) is provided with an attachment (41) which has an essentially rectangular or square cross section and to which a hydraulic or pneumatic pressure element (35) is attached, the piston (36) of which is in the radial direction the lower roller (12) and also to the upper roller (16) can be extended away from the latter.
  • the piston (36) is supported with a piston rod on a cross strut (33) of a bracket which is formed from two tabs (34) and a locking bolt (37).
  • the locking bolt (37) is assigned a hook-shaped end (38) of the axle body (21) of the top roller (16) into which it can be hung.
  • a link guide (40) is provided on the side flanks of the extension (41), which has a section running radially to the lower roller (12) and an inclined portion in which guide pins (39) of the tabs (34) engage. In the retracted position of the piston (36), the bracket is thus pivoted outward so that the locking bolt (37) assumes the position (37 ') in FIG. 3 and thus from the end of the axle body (21) of the upper roller (16) free is.
  • the axle body (21) of the top roller is guided in the guide (19) of the plate-shaped base body of the holding device (22) which protrudes beyond the punches (10). It is held on the pressure arms (14) by means of holders (20) which are shown in detail in FIG. 4. These holders (20) consist of a clamp (55) which receives the axle body (21) between them and which is received by a bracket (57) via a rubber-elastic element (56), which is held in the support guide with a bolt (61) (50) is performed.
  • bracket (57) engages a guide rod (58) which is guided with a sliding guide (59) on a further rod (60) so that when adjusting the slot guide always a radial alignment of the axle body (21) to the Guide (19) of the punch (10) or the holding device (22) is obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (9)

  1. Système d'étirage pour un métier à filer, en particulier pour un banc d'étirage, avec des cylindres inférieurs, logés de façon stationnaire l'un à l'autre dans des supports, et avec des cylindres supérieurs coordonnés aux cylindres inférieurs, maintenus dans des bras de serrage et pouvant être éloignés des cylindres inférieurs par basculement des bras de serrage, caractérisé en ce que les supports (10) sont munis de guidages (19) dans lesquels, à l'état fermé, au moins un des cylindres supérieurs (15, 16, 17, 18) est guidé et aligné par rapport aux cylindres inférieurs (11, 12, 13).
  2. Système d'étirage selon la revendication 1, caractérisé en ce que les cylindres supérieurs (15, 16, 17, 18) sont maintenus moyennant des moyens de retenue (20) élastiques flexibles.
  3. Système d'étirage selon la revendication 1 ou 2, caractérisé en ce que les corps d'essieu (21) du cylindre supérieur (15, 16, 17, 18) sont respectivement munis de deux surfaces de guidage (22) parallèles, auxquelles sont affectés des guidages (19) alignés approximativement radialement par rapport au cylindre inférieur (11, 12, 13) correspondant.
  4. Système d'étirage selon l'une des revendications 1 à 3, caractérisé en ce que les guidages (19) pour au moins un des cylindres supérieur (15, 16, 17, 18) font partie des dispositifs de retenue (22), fixés de façon réglable en direction circonférentielle du cylindre inférieur (12, 13) correspondant sur les supports (10).
  5. Système d'étirage selon l'une des revendications 1 à 4, caractérisé en ce que le cylindre supérieur (16, 18), affecté à des guidages réglables (19) des supports (10), est maintenu de façon réglable et arrêtable dans la position réglée sur les bras de serrage (14).
  6. Système d'étirage selon l'une des revendications 1 à 5, caractérisé en ce que les dispositifs de retenue (22) sont fixés de façon pivotable et concentrique par rapport au cylindre inférieur (12, 13) correspondant sur les supports (10).
  7. Système d'étirage selon la revendication 6, caractérisé en ce que les dispositifs de retenue (22) réglables sont équipés d'une commande d'ajustage (24).
  8. Système d'étirage selon l'une des revendications 1 à 7, caractérisé en ce que les cylindres inférieurs (12, 13) sont logés dans les dispositifs de retenue (22) maintenus de façon rotative et concentrique par rapports au cylindre inférieur (12, 13) correspondant dans les supports.
  9. Système d'étirage selon l'une des revendications 1 à 8, caractérisé en ce que des moyens de charge (25) pour le cylindre supérieur (16) correspondant sont fixés sur les dispositifs de retenue (22) et peuvent être mis en prise avec le cylindre supérieur (16), si les bras de serrage (14) sont fermés.
EP89111509A 1988-09-21 1989-06-24 Système d'étirage pour un métier à filer, en particulier pour un banc d'étirage Expired - Lifetime EP0359915B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3832062A DE3832062A1 (de) 1988-09-21 1988-09-21 Streckwerk fuer eine spinnereimaschine, insbesondere fuer eine strecke
DE3832062 1988-09-21

Publications (3)

Publication Number Publication Date
EP0359915A1 EP0359915A1 (fr) 1990-03-28
EP0359915B1 EP0359915B1 (fr) 1993-10-27
EP0359915B2 true EP0359915B2 (fr) 1996-12-04

Family

ID=6363412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111509A Expired - Lifetime EP0359915B2 (fr) 1988-09-21 1989-06-24 Système d'étirage pour un métier à filer, en particulier pour un banc d'étirage

Country Status (3)

Country Link
EP (1) EP0359915B2 (fr)
JP (1) JP2732907B2 (fr)
DE (2) DE3832062A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018204121A (ja) * 2017-05-30 2018-12-27 村田機械株式会社 ローラユニット、ドラフト装置及び紡績機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB742317A (en) * 1953-02-27 1955-12-21 Tmm Research Ltd Improvements in the drafting apparatus of textile spinning and like machines
DE1107570B (de) * 1958-12-06 1961-05-25 Skf Kugellagerfabriken Gmbh Streckwerk fuer Spinnereimaschinen
DE1103827B (de) * 1959-07-07 1961-03-30 Spinnerei Karl Marx Veb Hochschwenkbarer Oberwalzenbelastungs-arm fuer Spinnmaschinenstreckwerke
ATE18265T1 (de) * 1981-04-06 1986-03-15 Rieter Ag Maschf Streckwerk fuer spinnmaschinen zur bearbeitung eines faserbandes.
JPS5915520A (ja) * 1982-07-15 1984-01-26 Toyoda Autom Loom Works Ltd ドラフト機構のロ−ラ加圧装置
DE3542355A1 (de) * 1985-11-29 1987-06-04 Zinser Textilmaschinen Gmbh Streckwerk einer spinnereimaschine

Also Published As

Publication number Publication date
JPH0299622A (ja) 1990-04-11
JP2732907B2 (ja) 1998-03-30
DE3832062A1 (de) 1990-03-22
EP0359915B1 (fr) 1993-10-27
DE58906013D1 (de) 1993-12-02
EP0359915A1 (fr) 1990-03-28

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