EP0878572A2 - Outil de tricotage, par exemple platine de sélection ou aiguille - Google Patents

Outil de tricotage, par exemple platine de sélection ou aiguille Download PDF

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Publication number
EP0878572A2
EP0878572A2 EP98105454A EP98105454A EP0878572A2 EP 0878572 A2 EP0878572 A2 EP 0878572A2 EP 98105454 A EP98105454 A EP 98105454A EP 98105454 A EP98105454 A EP 98105454A EP 0878572 A2 EP0878572 A2 EP 0878572A2
Authority
EP
European Patent Office
Prior art keywords
shaft
control spring
end part
knitting tool
spring
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.)
Withdrawn
Application number
EP98105454A
Other languages
German (de)
English (en)
Other versions
EP0878572A3 (fr
Inventor
Wolfgang Schmoll
Klaus Ruoff
Thomas Schmid
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.)
Groz Beckert KG
Original Assignee
Groz Beckert 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
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Publication of EP0878572A2 publication Critical patent/EP0878572A2/fr
Publication of EP0878572A3 publication Critical patent/EP0878572A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/06—Sinkers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00

Definitions

  • the invention relates to a knitting tool, for example Selection board or a needle for knitting machines, with a flat shaft and one in the area of a narrow side of the shaft protruding elongated, narrow Control spring attached to an end part with the shaft connected is.
  • DE-OS 15 85 211 is a circular knitting machine described with electronic needle selection, in which the needles are knocked out in the form of Selection boards are controlled, the pattern between an effective and an ineffective position radially and can be swiveled around and then with a Bring stroke curve in and out of engagement.
  • Any of these Selection boards have a narrow side cantilevered control spring in the manner of a spring rod, the one ends on a shaft part of the selection board is anchored. This control spring is based on Areas of their free end against an abutment on the Needle cylinder and acts as a return spring for the Electromagnetically controlled selection board.
  • the shaft part of the selection board is an end part of the control spring bent about like a hairpin and with one leg in an end-widening, slit-like Opening in the shaft part pressed in.
  • DE-OS 23 27 585 is a circular knitting machine known who works with needles which their shaft part each for magnetic needle selection use the control spring anchored on one side.
  • the arrangement is such that the Steel wire of round or slightly flat rolled, so manufactured with flattened cross-sectional shape or punched out of thin spring steel sheet Control spring with its end part in a parallel flank limited slot fitted on the associated needle shaft part and is fixed in it by caulking.
  • a positive connection between the end of the control spring and the needle shaft part generated, yet ensure the individual, at a distance embossing points arranged in relation to one another in the area of the Side walls of the slot no precise, lateral alignment the control spring to the needle shaft.
  • control spring is hard and therefore not deformed when caulking can also not be excluded with certainty be that at the already mentioned high dynamic loading of the control spring, its end part over time somewhat freed up from the caulking, with the whole control spring at its anchor point would be limited rotatable. There is also a risk that the slot is caused by those that occur during caulking Lateral forces widened and thereby the upright dimension of the Shaft is changed in an uncontrollable manner.
  • a significant improvement in the anchoring of the Control spring on the shaft brings one from DE-PS 39 15th 684 (US-PS 5076074) known design of a knitting tool, For example, a selection board or a needle Knitting machine, in which in a corresponding shaft part, then to one of the assigned narrow sides slit-like opening opening towards the shaft, a depression is formed, the width of which measured across the longitudinal extent of the opening, at least in places larger than the width of the opening is.
  • the control spring has one at its end part widened according to the width of the depression Anchoring section whose thickness is smaller or is equal to the depth of the depression.
  • the control spring is guided at least laterally in the opening and with its anchoring section into the recess fitted.
  • All of the aforementioned knitting tools are in two parts trained, i.e. the actual knitting tool with its stem etc. and the control spring are considered separate Parts manufactured and then form-fitting with each other connected and, if necessary, additionally secured.
  • This two-part design of the knitting tool is relatively expensive.
  • the recess or recess is also adjacent to that of the control spring Narrow side of the shaft, transverse to the longitudinal direction of the shaft seen, necessarily spaced to around sufficient recess material in the recess or recess for secure anchoring of the inserted end part of the Tax spring available.
  • the extension is the extension at which the in one Guide channel of the selection board used in the knitting machine rests on the bottom of the guide channel and the die Includes pivot axis around which the selection board is in operation pivoted under the influence of assigned lock parts becomes.
  • This formation of the selection board carries the risk in that on the control spring, especially in the area of their end part molded onto the shaft, for longer persistent, high dynamic load fatigue fractures occur.
  • the object of the invention is therefore a knitting tool of the type mentioned at one end on the Shaped control spring to create that without uneconomically large production effort by long service life and perfect suspension properties distinguishes the control spring.
  • Knitting tool the features of claim 1.
  • the control spring on the new knitting tool is at least with its end part adjoining the shaft immediately the assigned narrow side of the shaft integrally molded on this. This ensures that at given height dimensions of the shaft, the width of the. measured perpendicular to the longitudinal direction of the shaft between the control spring and the remaining web-like
  • the section of the recessed space is comparatively large can be executed without the function of the Knitting tool or the control spring. This large width of the recessed space allows the the remaining shaft section facing the top of the Control spring at least in the areas of its end part after Punching to rework their surface roughness reduce. It was found that a substantial improvement in the lifetime of the molded Control spring can be achieved by making its surface from those normally resulting from the punching process Stamped letters and other manufacturing-related irregularities is liberated. These scores etc. result in a certain notch effect, which is the cause of premature Break of the control spring, especially in the dynamically highly loaded Transition area of its end part to the shaft was recognized.
  • the swivel axis containing contact point of the shaft on the floor the associated guide groove of the knitting machine on the assigned narrow side of the shaft near the end part the control spring, i.e. in the area of the above the control spring, the front edge of the in the Recessed space.
  • FIG. 1 In the drawing is an embodiment of the Subject of the invention shown.
  • the figure shows a knitting tool according to the invention in the form of a Selection board, in a side view.
  • the knitting tool shown is a so-called Selection board for a circular knitting machine with electromagnetic Needle selection, as for example in DE-PS 37 12 673 is described.
  • the selection board has one Shaft 1, on which an extension foot 2 and a control foot 3 sit.
  • a finely machined, usually ground, flat anchor surface 4 formed in the in the aforementioned DE-PS 37 12 673 described manner interacts with a selection magnet.
  • the anchor surface 4 is on the shaft 1 on the output foot 2 and the control foot 3 opposite narrow side 5 is provided.
  • control spring 6 In the area of this narrow side 5 is on the shaft 1 protruding a narrow elongated control spring, which is integrally formed with the shaft 1.
  • the thickness of the control spring measured at right angles to the plane of the drawing therefore corresponds to the thickness of the sheet steel punched shaft 1, the control spring 6 in the Level of the shaft 1 lies.
  • the Thickness of the control spring 6 compared to that of the shaft 1 to reduce. This can be done, for example, by punching out subsequent pressing or grinding process.
  • the control spring 6 has a light on one side spoon-shaped free end part 7 and on the other Page a second end part 8, with which they on the Shaft 1 is molded.
  • the radius 13a of the circularly curved edge 13 is greater than the height of the end part 8 of the control spring 6 in this area. It can also be this height, in any case, there is a fillet at this point available.
  • control spring 6 with its Bottom 14 directly in the region of its end part 8 to the narrow side area opposite the control foot 3 5a of the shaft 1 connects and continues.
  • the control spring 6 is therefore with her on the Shaft 1 adjoining end part 8 directly the narrow side 5a of the shaft integrally formed on this. This stands in contrast to such known embodiments, in which the end part 8 of the control spring relative to the Narrow-side area 5a of the shaft 1 in the direction of the other narrow side 9 is set back.
  • a transverse fold edge on the shaft 1 15 formed approximately below the front Edge 13 of the recess 10 is located.
  • the crease edge 15 forms in a guide groove, not shown the needle cylinder of the knitting machine used selection board, the support for shaft 1 on the Bottom of the guide groove.
  • the shank is in operation around this fold edge 15 pivoted in the sense that the Armature surface 4 on the pole surface of the also not shown Selection magnet is present and magnetic on it can be held or under the influence of Control spring 6 held at a distance from this pole face becomes.
  • the crease edge 15 can in principle also in the area of the end part 8 of the control spring are, as it is dependent of the respective embodiment, it is also conceivable compared to the figure further towards the control foot 3 move.
  • the procedure is that first of all from a sheet steel strip a blank is punched out, which corresponds to the outline of the corresponds to the selection board shown, wherein however, the control spring 6 dashed by a at 16 indicated web is extended, which ends at 17 on the shaft 1 and elsewhere at 18 on the end part 7 the control spring 6 is integrally formed.
  • the recess 10 is hence an all-round closed space in the shaft 1, the outside of the control spring 6 and this continuing web 16 and the adjoining parts of the shaft 1 is surrounded.
  • punching out the Blank hardened, for which he, at least in some areas, one subject to appropriate heat treatment. At this hardening is given to the control spring 6 which later forms Part of its resilient properties.
  • the blank can also be made directly from hard material are punched out so that subsequent hardening not applicable.
  • the perpendicular to the longitudinal extension of the shaft 1 measured width of the recess 10 depends on the constructive Conditions of the knitting tool. She is usually in a ratio of about 2-4: 1 the height of the control spring 6 in its end region 8. Under the "height" of the control spring 6 is approximately rectangular dimension understood to be longitudinal.
  • the control spring 6 is in the illustrated embodiment from the narrow side region 5a of the shaft 1 trained obliquely downwards. It lies with the Lower edge of its free end part 7 on one through the Kink edge 15 going tangent 7a, 7b, with a to the shaft longitudinal axis parallel straight line 1a through the Kink 15 an angle 20, which is approximately at 10 ° lies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP98105454A 1997-05-14 1998-03-26 Outil de tricotage, par exemple platine de sélection ou aiguille Withdrawn EP0878572A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19720169 1997-05-14
DE19720169A DE19720169C2 (de) 1997-05-14 1997-05-14 Auswahlplatine

Publications (2)

Publication Number Publication Date
EP0878572A2 true EP0878572A2 (fr) 1998-11-18
EP0878572A3 EP0878572A3 (fr) 1999-04-21

Family

ID=7829418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98105454A Withdrawn EP0878572A3 (fr) 1997-05-14 1998-03-26 Outil de tricotage, par exemple platine de sélection ou aiguille

Country Status (4)

Country Link
US (1) US6023948A (fr)
EP (1) EP0878572A3 (fr)
JP (1) JPH1112904A (fr)
DE (1) DE19720169C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010790A2 (fr) * 1998-12-09 2000-06-21 Matec S.p.A. Coulisseau pour des machines à tricoter à double cylindre
CN102220671A (zh) * 2010-04-13 2011-10-19 佰龙机械厂股份有限公司 具有复归结构的圆编机提花针
DE10015730B4 (de) * 2000-03-29 2012-09-13 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Platine für eine insbesondere nach der Relativtechnik arbeitende Strickmaschine und mit einer derartigen Platine ausgerüstete Strickmaschine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10111930C2 (de) * 2001-03-13 2003-02-27 Groz Beckert Kg Systemteil
KR20030005610A (ko) * 2001-07-09 2003-01-23 현대자동차주식회사 피어싱 프레스 장치
CN101490324B (zh) 2006-08-11 2011-04-13 株式会社岛精机制作所 可动沉降片和横机
CN101314887B (zh) * 2008-07-16 2011-04-06 冯加林 一种适用于电磁选针的织针组合
EP2374921A1 (fr) * 2010-04-07 2011-10-12 Pai Lung Machinery Mill Co., Ltd. Machine à tricoter circulaire à aiguille Jacquard équipée d'une structure de retour
JP2011219896A (ja) * 2010-04-13 2011-11-04 Pai Lung Machinery Mill Co Ltd 復帰構造を具えた丸編み機のジャガード針
KR101085264B1 (ko) 2010-04-27 2011-11-22 파이룽 머시너리 밀 코., 엘티디. 복원 구조물을 구비하는 원형 편물기 자카드 바늘

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2245842A1 (de) * 1972-09-19 1974-03-28 Mayer & Cie Maschinenfabrik Zungenlose strickmaschinennadel
DE2755471A1 (de) * 1976-12-23 1978-06-29 Dubied & Cie Sa E Strickmaschine
DE2918841A1 (de) * 1979-05-10 1980-11-20 Stoll & Co H Flachstrickmaschine mit umstellbaren nadelstoessern
DE19541407A1 (de) * 1995-11-07 1997-05-15 Hans Ruester Gmbh & Co Platine für die Auswahl und Steuerung maschenbildender Bewegungen von Strickwerkzeugen einer Strickmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US601281A (en) * 1898-03-29 Island
US329906A (en) * 1885-11-10 And thomas s
DE1785125B1 (de) * 1968-08-13 1971-10-14 Harry Apprich Vorrichtung zum Herstellen einer Maschenware
DE2327585A1 (de) * 1973-05-30 1974-12-19 Fouquet Werk Frauz & Planck Rundstrickmaschine
DE3133266C2 (de) * 1981-08-22 1988-12-22 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Gestanztes Strickwerkzeug für Strick- oder Wirkmaschinen
DE3712673C1 (de) * 1987-04-14 1988-08-25 Sipra Patent Beteiligung Mehrsystemige Rundstrickmaschine mit elektromagnetischer Nadelauswahl
DE3915684C1 (fr) * 1989-05-13 1990-05-23 Theodor Groz & Soehne & Ernst Beckert Nadelfabrik Kg, 7470 Albstadt, De
IT1286207B1 (it) * 1996-09-05 1998-07-08 Matec Srl Sottoago modificato con relativi organi di azionamento per macchine circolari per calze e calzini

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2245842A1 (de) * 1972-09-19 1974-03-28 Mayer & Cie Maschinenfabrik Zungenlose strickmaschinennadel
DE2755471A1 (de) * 1976-12-23 1978-06-29 Dubied & Cie Sa E Strickmaschine
DE2918841A1 (de) * 1979-05-10 1980-11-20 Stoll & Co H Flachstrickmaschine mit umstellbaren nadelstoessern
DE19541407A1 (de) * 1995-11-07 1997-05-15 Hans Ruester Gmbh & Co Platine für die Auswahl und Steuerung maschenbildender Bewegungen von Strickwerkzeugen einer Strickmaschine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010790A2 (fr) * 1998-12-09 2000-06-21 Matec S.p.A. Coulisseau pour des machines à tricoter à double cylindre
EP1010790A3 (fr) * 1998-12-09 2001-05-23 Matec S.p.A. Coulisseau pour des machines à tricoter à double cylindre
DE10015730B4 (de) * 2000-03-29 2012-09-13 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Platine für eine insbesondere nach der Relativtechnik arbeitende Strickmaschine und mit einer derartigen Platine ausgerüstete Strickmaschine
CN102220671A (zh) * 2010-04-13 2011-10-19 佰龙机械厂股份有限公司 具有复归结构的圆编机提花针

Also Published As

Publication number Publication date
EP0878572A3 (fr) 1999-04-21
JPH1112904A (ja) 1999-01-19
DE19720169C2 (de) 1999-04-08
US6023948A (en) 2000-02-15
DE19720169A1 (de) 1998-11-19

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