EP0350622B1 - Bras de support et de chargement pour des systèmes d'étirage - Google Patents

Bras de support et de chargement pour des systèmes d'étirage Download PDF

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Publication number
EP0350622B1
EP0350622B1 EP89110442A EP89110442A EP0350622B1 EP 0350622 B1 EP0350622 B1 EP 0350622B1 EP 89110442 A EP89110442 A EP 89110442A EP 89110442 A EP89110442 A EP 89110442A EP 0350622 B1 EP0350622 B1 EP 0350622B1
Authority
EP
European Patent Office
Prior art keywords
support
loading arm
leaf spring
spring
spring retainer
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
EP89110442A
Other languages
German (de)
English (en)
Other versions
EP0350622A1 (fr
Inventor
Hans Stahlecker
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 Altstatten AG
Original Assignee
Maschinenfabrik Altstatten 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 Altstatten AG filed Critical Maschinenfabrik Altstatten AG
Publication of EP0350622A1 publication Critical patent/EP0350622A1/fr
Application granted granted Critical
Publication of EP0350622B1 publication Critical patent/EP0350622B1/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
    • 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
    • D01H5/50—Loading arrangements using springs
    • D01H5/505—Loading arrangements using springs for top roller arms

Definitions

  • the invention relates to a support and load arm for drafting systems with a longitudinally adjustable spring holder for a curved leaf spring, one leg of which is held by the spring holder and guided on the support and load arm and the other leg is provided with a receptacle for an axis of a pressure roller twin is.
  • the adjustable spring holder is designed as a threaded sleeve, which is provided with a washer and a nut, and with which one leg of the curved leaf spring on a mounting rail of the The load-bearing and low-load is firmly tensioned
  • the leg of the leaf spring attached to the mounting rail is provided with circular-shaped guide surfaces, the diameter of which corresponds to the inner distance corresponds to the side cheeks of the mounting rail.
  • the other leg of the leaf spring is provided with a receptacle for an axis of a pressure roller twin.
  • This receptacle is connected to a spacer bolt, the length of which is adapted to the inner spacing of the side cheeks of the mounting rail.
  • the relative arrangement of the receptacle on the spacer bolt can be adjusted in order to align the receptacle exactly with the associated lower roller.
  • this spacer bolt carries out sliding movements with which it slides on the side cheeks of the mounting rail.
  • the spring holder is a sliding piece which is held on the supporting and loading arm by means of a screw and can be locked in the respective working position
  • Leaf spring clamped which has at its other end a receptacle for the axis of a printing roller twin.
  • a support plate Arranged between the spring holder designed as a sliding piece and the leaf spring is a support plate provided with a slot and displaceable in the longitudinal direction of the leaf spring, the displacement of which allows the effective spring length to be set.
  • the axis of the printing roller twin is not set parallel to the associated lower roller.
  • the leaf spring will make rotational movements around the screw with which it is held on the spring holder.
  • the spring holder itself performs movements around the screw connecting it to the carrying and loading arm.
  • the invention has for its object to form a support and load arm of the type mentioned that the Parallelism between the printing roller twin and the associated lower roller is guaranteed without adjustment work.
  • leg of the leaf spring held with the spring holder is provided with a plurality of projecting tabs which are guided at a distance from one another on lateral guide surfaces of the supporting and loading arm and the leaf spring together with the receptacle transversely to the longitudinal direction of the supporting and loading arm align.
  • This configuration ensures that the leaf spring is aligned on its leg held on the spring holder and the teder end connected to the receptacle for the axis of a pressure roller twin can reliably transmit the set spring force to the pressure roller.
  • the receptacle for the axis of the pressure roller twin is at least post-processed after being attached to the leaf spring.
  • the receptacle is first attached to the leaf spring, after which the leaf spring is inserted with the receptacle into a device which corresponds to the holder formed from the spring holder and the carrying and loading arm and which is exactly aligned with a tool processing the receptacle. In this position, the recording is then taken, held and edited.
  • a support and loading arm (1) of a drafting system in particular a drafting system for a ring spinning machine, is only partially shown.
  • the support and load arm (1) has a U-shaped profile (2). It is supported at its end, not shown, on a support rod which runs parallel to the lower rollers of the drafting system, of which a lower roller (9) is shown.
  • the support and load arm (1) is guided on the support rod in such a way and is designed so stiff that it can be pivoted in a plane that runs perpendicular to the lower rollers (9).
  • the carrying and loading arm (1) carries several top rollers, of which only one top roller (6) is shown, and the corresponding ones Number are assigned to the lower rollers.
  • top roller (6) Between the top roller (6) and the bottom roller (9) runs a fuse (10), which is drawn to the desired yarn count in the drafting system.
  • a fuse (10 For an adaptation of the drafting system to the fiber material, it is necessary that at least one top roller delimiting the drawing field can be adjusted in the running direction of the fuse (10), ie in the longitudinal direction of the carrying and loading arm (1). It is also essential that the top rollers (6) run as precisely as possible parallel to the bottom rollers (9).
  • the top rollers (6) are usually designed as so-called pressure roller twins, which consist of two loose rollers, which are mounted on a common axis (7), which is held between the two pressure rollers (6).
  • the axis (7) of the pressure rollers (6) is arranged in a receptacle (8) which has an approximately semi-cylindrical recess.
  • the axis (7) is fixed in this recess by means of a bow spring (11).
  • the receptacle (8) for the axle (7) is attached to a leaf spring (12).
  • the attachment takes place via rivets, the bow spring (11) being riveted to the leaf spring (12) on the receptacle (8) at the same time.
  • the leaf spring (12) has in the area facing away from the receptacle (8) a hairpin-shaped section, to which the part carrying the receptacle (8) is connected via a crank.
  • the leaf spring (12) is fixed with the hairpin-shaped section in a spring holder (15), which in turn is held in the profile (2) of the supporting and loading arm (1).
  • the spring holder (15) also has a U-shaped profile open towards the lower rollers (9).
  • a screw (19) is screwed into its transverse web (16) and penetrates the transverse web (3) of the profile (2) in a longitudinal slot, so that the spring holder (15) can be adjusted and fixed in the longitudinal direction of the carrying and loading arm (1) is.
  • the leaf spring (12) is attached to the spring holder (15) with the free leg (14) of the hairpin-shaped section in the region of the apex in such a way that the leaf spring (12) swivels within certain limits about a transverse to the supporting and loading arm (1) running axis can perform.
  • the leaf spring (12) is provided in the region of this transverse axis with two opposite tabs (22, 23) which are inserted into slot-like receptacles (29) of the legs (17, 18) of the spring holder (15) which are open at the bottom.
  • a clamping piece (30) is arranged, which in corresponding recesses (32) of the legs (17, 18) of the spring holder (15) is pushed in from the side.
  • This clamping piece (30) is provided with a semi-cylindrical rib (31) which extends transversely to the carrying and loading arm (1) and which loads the tabs (22, 23) upwards towards the end of the receptacles (29) .
  • the surfaces (25, 26) delimiting the tabs (22, 23) in the longitudinal direction of the carrying and loading arm (1) are so tolerated to the width of the receptacles (29) that to a certain extent a pivoting movement is possible.
  • a real swivel bearing can also be provided in this area in a modified embodiment, for example by rounding the area of the receptacles (29) in which the tabs (22, 23) are in the operating position.
  • the tabs (22, 23) are dimensioned such that their end faces (24) protrude laterally over the legs (17, 18) of the spring holder (15) and on the inner walls of the legs (4th , 5) of the profile (2) of the supporting and loading arm (1) and are guided thereon.
  • the free end of the leg (14) of the leaf spring (12) is provided with two further tabs (20, 21) which protrude beyond the spring holder (15) in the longitudinal direction of the carrying and loading arm (1) and which correspond to the tabs to the side (22, 23) protrude and also with their end faces on the Inner surfaces of the legs (4, 5) of the profile (2) are guided.
  • the leaf spring (12) is thus guided over the tabs (20, 21, 22, 23) in the transverse direction directly on the inner surfaces of the legs (4, 5) of the profile (2) of the support and loading arm (1), ie independently of the pen holder.
  • This alignment between the leaf spring (12) and the load and load arm is not impaired.
  • the free end of the leg (14) of the hairpin-shaped area of the leaf spring (12) is assigned a loading element in the form of an eccentric bolt (36) which is provided with two flattened eccentric surfaces (37, 38), which are optionally attached to the leg (14) Plant can be brought.
  • the leaf spring (12) is preloaded in accordance with the radius of the eccentric surfaces (37 or 38).
  • a stop is assigned to the leg (13) of the leaf spring (12) and is designed in the form of a bolt (35) arranged between the legs (17, 18). This pin (35) limits the possible path of the leg (13) of the leaf spring (12) when the supporting and loading arm (1) is pivoted away from the lower rollers (9).
  • the leaf springs (12) are first produced during manufacture and into their final shape to be brought.
  • the receptacles (8) are then attached to the leaf springs (12), the receptacles (8) not yet having their final shape in the region of the cylindrical recess for the shafts (7).
  • the leaf springs (12) are then clamped in a device which has receiving and clamping elements which correspond to the receiving and clamping elements of the supporting and loading arm (1) and the spring holder (15).
  • This device is precisely aligned to a tool that is then brings the recess of the receptacle (8) to the final shape, so that the recess of the receptacle (8) regardless of any deformations of the leaf spring (12) caused during manufacture exactly to the tabs (20, 21, 22, 23) and thus is also aligned with the spring holder (15) and the supporting and loading arm (1).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (11)

  1. Bras de support et de chargement (1) pour des systèmes d'étirage avec un porte-ressort (15) déplaçable dans le sens longitudinal pour un ressort à lames (12) coudé, dont une branche (14) est maintenue au moyen du porte-ressort (15) et guidée sur le bras de support et de chargement (1) et dont l'autre branche (13) est munie d'un logement (8) pour un axe (7) de rouleau-presseur jumelé (6), caractérisé en ce que la branche (14), maintenue par le porte-ressort (15), du ressort à lames (12) est munie de plusieurs languettes (20, 21, 22, 23) en saillie guidées avec un certain écart entre elles sur des surfaces de guidage (4, 5) latérales du bras de support et de chargement (1) et alignant le ressort à lames (12) avec le logement (8) en direction transversale du bras de support et de chargement (1).
  2. Bras de support et de chargement selon la revendication 1, caractérisé en ce que le porte-ressort (15) est disposé entre des surfaces de guidage latérales (4, 5) du bras de support et de chargement (1) et que des languettes (20, 21, 22, 23) disposées sur le ressort à lames (12) font saillie du porte-ressort (15) et sont guidées sur les surfaces de guidage (4, 5).
  3. Bras de support et de chargement selon la revendication 1 ou 2, caractérisé en ce que le bras de support et de chargement (1) comprend un profilé (2) en forme d'U ouvert en direction des rouleaux-presseurs jumelés (6, 7), les branches duquel (4, 5) formant les surfaces de guidage latérales pour les languettes (20, 21, 22, 23) du ressort à lames (12) et entre lesquelles est disposé le porte-ressort (15) également en forme d'U.
  4. Bras de support et de chargement selon la revendication 3, caractérisé en ce que le porte-ressort (15) est fixé sur la barrette (3) du bras de support et de chargement (1) au moyen d'une vis (19) dans une fente longitudinale.
  5. Bras de support et de chargement selon l'une des revendications 1 à 4, caractérisé en ce que le ressort à lames (12) présente dans la zone opposée au logement (8) une section en forme d'épingle à cheveux au moyen de laquelle le ressort à lames est disposé dans le porte-ressort (15), le ressort étant pivotable autour d'un axe transversal (22, 23, 29, 30) au voisinage du sommet et dans la zone de la branche libre (14) chargé d'un élément de chargement (36).
  6. Bras de support et de chargement selon la revendication 5, caractérisé en ce que un excentrique (36) réglable est prévu comme élément de chargement.
  7. Bras de support et de chargement selon l'une des revendications 1 à 6, caractérisé en ce que le porte-ressort (15) est muni d'une butée (35) limitant le trajet de la branche (13) du ressort à lames (12) portant le logement (8).
  8. Bras de support et de chargement selon l'une des revendications 1 à 7, caractérisé en ce que une paire de languettes opposées (22, 23) est guidée dans des évidements (29) du porte-ressort (15) transversaux à la direction longitudinale du bras de support et de chargement (1).
  9. Bras de support et de chargement selon la revendication 8, caractérisé en ce que les languettes (22, 23) du ressort à lames (12) sont arrêtées dans les évidements (29) du porte-ressort (15) au moyen d'une pièce de serrage (30).
  10. Bras de support et de chargement selon l'une des revendications 1 à 9, caractérisé en ce que le logement (8) pour l'axe (7) des rouleaux-presseurs jumelés (6) est au moins retouché après le montage sur le ressort à lames (12).
  11. Bras de support et de chargement selon l'une des revendications 1 à 10, caractérisé en ce que un élément de blocage (11) élastique est adjoint au logement (8) pour arrêter la tige (7).
EP89110442A 1988-07-14 1989-06-09 Bras de support et de chargement pour des systèmes d'étirage Expired - Lifetime EP0350622B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3823872 1988-07-14
DE3823872A DE3823872A1 (de) 1988-07-14 1988-07-14 Trag- und belastungsarm fuer streckwerke

Publications (2)

Publication Number Publication Date
EP0350622A1 EP0350622A1 (fr) 1990-01-17
EP0350622B1 true EP0350622B1 (fr) 1994-06-29

Family

ID=6358657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110442A Expired - Lifetime EP0350622B1 (fr) 1988-07-14 1989-06-09 Bras de support et de chargement pour des systèmes d'étirage

Country Status (4)

Country Link
US (1) US5027476A (fr)
EP (1) EP0350622B1 (fr)
JP (1) JPH0226926A (fr)
DE (2) DE3823872A1 (fr)

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DE102005044081A1 (de) * 2005-09-08 2007-03-15 Wilhelm Stahlecker Gmbh Druckwalzenhalter für Streckwerke
DE102010034314A1 (de) 2010-08-13 2012-02-16 Wilhelm Stahlecker Gmbh Streckwerk und Trag- und Belastungsarm dafür
DE102012105898A1 (de) 2012-07-03 2014-05-08 Maschinenfabrik Rieter Ag Anordnung zur Lagerung einer Druckwalze an einem Belastungsträger eines Streckwerks sowie Verfahren zu dessen Herstellung
CN104233533A (zh) * 2014-10-10 2014-12-24 常德市恒天纺织机械有限公司 一种板簧摇架加压机构
CN104475709A (zh) * 2014-11-14 2015-04-01 柳州市中配橡塑配件制造有限公司 一种压辊支架制造工艺
CN104439179A (zh) * 2014-11-14 2015-03-25 柳州兴杜工业贸易有限公司 一种工业用辊式结构件的加工工艺
CN104439176A (zh) * 2014-11-14 2015-03-25 无锡阳工机械制造有限公司 一种压辊支架制造方法
CN104525904A (zh) * 2014-11-14 2015-04-22 柳州兴杜工业贸易有限公司 一种工业用五金结构件的加工工艺
CN104399943A (zh) * 2014-11-14 2015-03-11 无锡阳工机械制造有限公司 一种辊式结构件的制造方法
CN104368798A (zh) * 2014-11-14 2015-02-25 无锡阳工机械制造有限公司 压辊支架制造方法
CN104399948A (zh) * 2014-11-14 2015-03-11 柳州兴杜工业贸易有限公司 一种工业用压辊形结构件的制造工艺
CN104525905A (zh) * 2014-11-14 2015-04-22 柳州市中配橡塑配件制造有限公司 辊式结构件的加工工艺
CN104439183A (zh) * 2014-11-14 2015-03-25 无锡阳工机械制造有限公司 辊形结构件的加工方法
CN104399949A (zh) * 2014-11-14 2015-03-11 无锡阳工机械制造有限公司 一种辊形结构件的制造方法
CN104399950A (zh) * 2014-11-14 2015-03-11 柳州兴杜工业贸易有限公司 一种工业用辊形结构件的加工工艺
CN104525908A (zh) * 2014-11-14 2015-04-22 无锡阳工机械制造有限公司 压辊形结构件的制造方法
CN104368797A (zh) * 2014-11-14 2015-02-25 无锡阳工机械制造有限公司 一种五金结构件的加工方法
CN104525907A (zh) * 2014-11-14 2015-04-22 柳州市中配橡塑配件制造有限公司 压辊支架制造工艺
CN104439174A (zh) * 2014-11-14 2015-03-25 无锡阳工机械制造有限公司 一种压辊形结构件的加工方法
CN104475707A (zh) * 2014-11-14 2015-04-01 柳州市中配橡塑配件制造有限公司 一种压辊支架的加工工艺
CN104399947A (zh) * 2014-11-14 2015-03-11 无锡阳工机械制造有限公司 一种辊式结构件的制造方法
CN104439173A (zh) * 2014-11-14 2015-03-25 柳州兴杜工业贸易有限公司 一种工业用五金结构件的制造工艺
CN104439182A (zh) * 2014-11-14 2015-03-25 无锡阳工机械制造有限公司 辊形结构件的制造方法
CN104475706A (zh) * 2014-11-14 2015-04-01 柳州兴杜工业贸易有限公司 一种工业用辊形结构件的制造工艺
CN104368799A (zh) * 2014-11-14 2015-02-25 无锡阳工机械制造有限公司 压辊支架的加工方法
CN104525903A (zh) * 2014-11-14 2015-04-22 无锡阳工机械制造有限公司 一种辊形结构件的加工方法
CN104399946A (zh) * 2014-11-14 2015-03-11 无锡阳工机械制造有限公司 五金结构件的加工方法
CN104525906A (zh) * 2014-11-14 2015-04-22 柳州市中配橡塑配件制造有限公司 一种辊式结构件的制造工艺
CN104368794A (zh) * 2014-11-14 2015-02-25 无锡阳工机械制造有限公司 一种压辊支架的加工方法
CN104475705A (zh) * 2014-11-14 2015-04-01 柳州兴杜工业贸易有限公司 一种工业用压辊支架制造工艺
CN104439186A (zh) * 2014-11-14 2015-03-25 无锡阳工机械制造有限公司 辊式结构件的加工方法
CN104325115A (zh) * 2014-11-14 2015-02-04 柳州市中配橡塑配件制造有限公司 压辊支架的加工工艺
CN104439172A (zh) * 2014-11-14 2015-03-25 柳州兴杜工业贸易有限公司 一种工业用压辊形结构件的加工工艺
CN104475710A (zh) * 2014-11-14 2015-04-01 柳州兴杜工业贸易有限公司 一种工业用压辊支架的加工工艺
CN104475704A (zh) * 2014-11-14 2015-04-01 无锡阳工机械制造有限公司 一种辊式结构件的加工方法
CN104439178A (zh) * 2014-11-14 2015-03-25 无锡阳工机械制造有限公司 一种压辊形结构件的制造方法
CN104475703A (zh) * 2014-11-14 2015-04-01 无锡阳工机械制造有限公司 一种五金结构件的制造方法
CN104439180A (zh) * 2014-11-14 2015-03-25 柳州市中配橡塑配件制造有限公司 一种辊式结构件的制造工艺

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BE532676A (fr) * 1954-04-07
DE1096809B (de) * 1955-06-30 1961-01-05 Wuerttembergische Spindelfabri Halte- und Belastungseinrichtung fuer die Streckwerksoberwalzen an Feinspinnmaschinen und Spinnereimaschinen
DE1050696B (de) * 1957-03-29 1959-02-12 Skf Kugellagerfabriken Gmbh Oberwalzen-Trag- und -Belastungsarm für Spinnereimaschinen-Streckwerke
DE1099917B (de) * 1960-06-21 1961-02-16 Skf Kugellagerfabriken Gmbh Oberwalzen-Trag- und Belastungsarm fuer Spinnereimaschinen-Streckwerke
DE1164289B (de) * 1961-02-11 1964-02-27 Skf Kugellagerfabriken Gmbh Oberwalzen-Trag- und Belastungsarm fuer Spinnereimaschinen-Streckwerke
US3238570A (en) * 1962-05-11 1966-03-08 Supporting and loading arm for the drawing mechanism op a spinning machine
DE1278305B (de) * 1962-12-29 1968-09-19 Schurr Stahlecker & Grill Trag- und Belastungsarm fuer Streckwerke von Spinnereimaschinen
DE1560279A1 (de) * 1966-07-26 1971-04-15 Skf Kugellagerfabriken Gmbh Oberwalzen-Trag- und Belastungsarm fuer Spinnereimaschinen-Streckwerke
DE1560284A1 (de) * 1966-08-20 1970-10-15 Schurr Stahlecker & Grill Oberwalzen-Tragarm fuer Streckwerke von Spinnereimaschinen mit mittengefuehrten Druckwalzen

Also Published As

Publication number Publication date
DE3823872A1 (de) 1990-01-18
JPH0226926A (ja) 1990-01-29
US5027476A (en) 1991-07-02
DE58907974D1 (de) 1994-08-04
EP0350622A1 (fr) 1990-01-17

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