EP0282647B1 - Gestanztes Strickwerkzeug für Textilmaschinen, insbesondere Strick- oder Wirkmaschinen - Google Patents

Gestanztes Strickwerkzeug für Textilmaschinen, insbesondere Strick- oder Wirkmaschinen Download PDF

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Publication number
EP0282647B1
EP0282647B1 EP87118670A EP87118670A EP0282647B1 EP 0282647 B1 EP0282647 B1 EP 0282647B1 EP 87118670 A EP87118670 A EP 87118670A EP 87118670 A EP87118670 A EP 87118670A EP 0282647 B1 EP0282647 B1 EP 0282647B1
Authority
EP
European Patent Office
Prior art keywords
knitting tool
tool according
knitting
shank
zones
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
EP87118670A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0282647A1 (de
Inventor
Sigmund Sos
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
Theodor Groz and Soehne and Ernst Beckert Nadelfabrik 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 Theodor Groz and Soehne and Ernst Beckert Nadelfabrik KG filed Critical Theodor Groz and Soehne and Ernst Beckert Nadelfabrik KG
Publication of EP0282647A1 publication Critical patent/EP0282647A1/de
Application granted granted Critical
Publication of EP0282647B1 publication Critical patent/EP0282647B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D04B35/04—Latch needles
    • 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 punched knitting tool for textile machines, in particular knitting and knitting machines, according to the preamble of patent claim 1 or patent claim 2.
  • Knitting tools are to be understood here as tongue needles, point needles, pusher needles, needles without tongue, for example plush hooks for the manufacture of plush goods, and sinkers.
  • a punched knitting tool for knitting or warp knitting machines is known, the shaft of which has at least one foot and at least two guide parts continuous from the upper edge of the shaft to the lower edge of the shaft, one of which is arranged below the foot. Both guide parts are connected by at least one narrow web with a maximum height of 1.1 mm, through which a free space is limited together with the guide parts. This space is filled with a vibration-damping material that is firmly attached to the Needle shaft is connected.
  • the vibration-damping material is usually an elastic plastic material with high damping properties, but the use of other materials is not excluded.
  • the arrangement can be such that the space delimited by a narrow web together with the guide parts opens to the lower edge or upper edge of the shaft or that two adjacent guide parts are connected to one another by two such narrow webs of a maximum height of 1.1 mm, so that the Free space is completely enclosed by the webs and the guide parts.
  • Embodiments with one or more free spaces are described.
  • the vibration-damping material filling the free space can only develop its effect if it is firmly attached along the edge of the free space the shaft material is connected.
  • very fine knitting tools ie knitting tools whose shaft thickness is very small
  • the area of the edge of the space delimiting the free space and available for the bond between the shaft material and the vibration-damping material is also very narrow.
  • the needle shaft in the area of the free space can be considerable Be exposed to side forces.
  • the object of the invention is therefore to remedy this situation and a knitting tool of the type mentioned to create, in which an inadvertent loosening of the binding of the material to the web or guide partial surfaces surrounding the free space is prevented even in the case of very high loads in the area of at least one free space filled with vibratable material.
  • the knitting tool according to the invention is characterized in that the web and / or guide sections that line the free space have a profiling by means of which the vibration-damping material is anchored in a form-fitting manner.
  • the profiling results on the one hand in an enlargement of the surface areas available for binding between the filling of the free space and the surrounding needle parts, on the other hand the positive anchoring of the material filling the free space by the profiling results in a much better introduction of any bending stresses that may occur into the free space filling and a relief of the Binding surfaces between the filling and the surrounding needle parts.
  • This ensures that even with very fine knitting tools of the aforementioned highly elastic design, in which two guide parts are connected to one another by at least one narrow web of at most 1.1 mm in height, over long operating periods and at high working speed, the vibration-damping properties of the filling of the free space are ensured (or the free space) is perfectly preserved.
  • the invention is preferred for such highly elastic needles, but their application is not limited to this narrow area.
  • JP-GM 57-9433 it is known to provide normal latch needles in the solid openings adjacent to the needle foot, which are closed to the back of the shaft, or an opening which opens towards the back of the needle and which is provided with a vibration-absorbing material, for example felt or a synthetic resin, are filled.
  • the purpose of this measure is preferably to prevent roll movements of the needle in the needle channel, which can be triggered by the control impacts exerted on the needle foot.
  • the aforementioned object can be achieved according to the invention in that the free space seaming shaft areas have a profile by means of which the heterogeneous material is anchored in a form-fitting manner.
  • the profiling has cutouts open to the edge towards the free space.
  • the cutouts are part-circular, in which case they can advantageously be arranged next to one another in an overlapping or tangential manner (at one point).
  • the cutouts may alternatively also be preferable for the cutouts to be arranged next to one another at a distance, a distance of approximately 0.1 mm _ measured along the edge of the free space _ having often proven to be sufficient .
  • the profiling can have areas of reduced wall thickness which protrude into the material filling the free space and form their own “anchors" there, which are embedded in the material filling the free space and thus provide additional security against premature loosening.
  • These areas of reduced wall thickness can extend like strips around the free space _ or a part of the same _, but it is particularly advantageous if they are localized and projecting into the free space.
  • the regions of reduced wall thickness comprise the gusset-shaped parts formed at the transitions between adjacent cutouts.
  • the areas of reduced wall thickness can be formed by depressions which, starting from opposite sides, extend symmetrically to the longitudinal center plane of the shaft, so that the parts of reduced wall thickness which act as “anchors" are completely enclosed on both sides by the material filling the free space to the same extent.
  • the areas of reduced wall thickness contain openings which are filled with the vibratable material and thus still effect rivet-like cross connections between the material and the surrounding shaft parts.
  • the binding of the vibration-damping material to the shaft of the knitting tool is further improved if the profiling extends over the entire length of the shaft regions delimiting the free space.
  • the profiling extends over the entire length of the web and additionally includes the sides of the guide parts facing the respective free space.
  • the latch needles shown in FIGS. 1 to 3 each have a head or hook 1, which is followed by a neck 2, which merges into the needle face 3, in the area of which a longitudinal slot is arranged in the usual manner, in which a needle tongue 4 is pivotally mounted.
  • the tongue bearing is indicated at 5.
  • the shaft 7 Connected to the throat designated 6 is the shaft 7, which carries a needle foot 8 and which can additionally (FIG. 3) be provided with a pattern foot 9.
  • a second such guide part 10 which is, however, much narrower, adjoins the throat 6.
  • the free space 11 in the shaft 7 between the two guide parts 10, with its longitudinal axis oriented parallel to the needle shaft symmetry line.
  • the free space 11 is narrow at the top (needle top) and bottom (needle back) Bridge 12 limited, the height of which is at most 1.1 mm.
  • an elastic, vibration-damping material 13 is arranged, which is firmly connected to the shaft material surrounding it.
  • This vibration-damping material is in particular a plastic material; however, other elastic materials, including metals, for example aluminum, can also be used for this purpose.
  • FIGS. 2, 3 differ from those according to FIG. 1 in that several elongated free spaces 11 are formed in the shaft 7. Each of the free spaces 11 is filled with the vibration-damping material 13, which is firmly connected to the edge of the shaft material.
  • each of the two free spaces 11 provided in the needle shaft 7 is not closed, but is open at the edge and arranged such that it faces the back of the shaft (needle back) or opens to the top of the shaft (top of needle).
  • Each of the two free spaces 11 is in turn delimited on one side by a narrow web 12 of a maximum height of 1.1 mm and on the other two sides by a guide part 10, the guide part 10 adjacent to the throat 6, as in the drawing illustrates, in its width dimension preferably corresponds approximately to the height of the subsequent web 12, which, incidentally, also applies to the embodiments according to FIGS. 1, 3.
  • the guide parts 10, which can be of different widths, are arranged between them in the presence of a plurality of free spaces 11 (FIG. 3).
  • FIGS. 4 to 8 The details of the design of the edges of the free spaces 11 and that of the connection between the vibration-damping material 13 and the surrounding shaft material can be seen in particular from FIGS. 4 to 8:
  • the areas of the webs 12 and / or the guide parts 10 that line the free space 11 have a profiling 15 by means of which the vibration-damping material 13 is anchored in a form-fitting manner on the shaft material surrounding it.
  • the profiling 15 has, in the exemplary embodiments shown, recesses 16 which are open towards the edge and which are formed in the form of a part circle.
  • the recesses 16 which are arranged next to one another in a sequence are overlapping one another in FIGS. 4, 5 and 7, such that two adjacent recesses 16 at the transition point 17 enclose an essentially helical or triangular region 18, which ends in an edge 190.
  • the arrangement is such that the part-circular recesses 16 are arranged at such a distance from one another that straight edge parts 180 remain between them, the length of which — measured along the edge of the free space 11 — generally does not needs to be larger than approx. 0.1 mm.
  • the part-circular design of the recesses 16 shown has proven to be particularly advantageous in particular with regard to the manufacturing possibilities. In principle, however, other configurations of the cutouts 16 are also conceivable;
  • the cutouts 16 could, for example, be polygonal or undulating, or dovetail-shaped.
  • the profiling 15 can have areas of reduced wall thickness which protrude into the material 13 filling the free space 11. A preferred embodiment of this type is shown in FIGS. 7, 8:
  • the areas of reduced wall thickness designated by 19 are localized and projecting into the free space 11. They lie at the transitions 17 between adjacent cutouts 16 and encompass the gusset or triangular regions 18. They form thus approximately cone-shaped “anchors", which are embedded in the vibration-damping material 13 and additionally support it.
  • these areas 19 are of reduced wall thickness, i.e. the “anchors” mentioned, starting from opposite sides, are formed by depressions 20 embossed into the webs 12, which extend symmetrically to the longitudinal median plane of the shaft 7 indicated at 21 in FIG. 8, such that the regions 19 of reduced wall thickness also symmetrically the longitudinal center plane 21.
  • the remaining wall thickness 22 in these areas 19 of reduced wall thickness is approximately equal to half the thickness of the shaft 7 in the embodiment shown.
  • the "anchors" formed by the areas 19 are therefore covered on both sides by layers of the same vibration-damping material 13.
  • the profiling 15 extends over the entire length of the web 12 and includes the sides of the guide parts 10 facing the free space 11.
  • the profiling 15 is only provided over part of the outline of an open space 11 which is open or closed.
  • regions 19 of reduced wall thickness need not be locally limited, as shown in FIG. 7. Embodiments are also possible in which such an area extends like a strip over the entire outline - or a part thereof - of a free space 11. This is illustrated in dashed lines at 19a in FIG. 6.
  • the exemplary embodiments described above with reference to FIGS. 1 to 8 relate to needles, the free spaces 11 of which are delimited by narrow webs 12 with a height of at most 1.1 mm and guide parts 10.
  • the material filling the free spaces 11 has a vibration-damping effect for the highly elastic structures thus created.
  • such a profile 15 can also be used quite generally in the case of knitting tools, the shank of which has free-forming, open-edged or closed openings or recesses, the free spaces then being filled with a heterogeneous material, for example plastic material, which is firmly attached to the edge of freedom is connected.
  • a heterogeneous material for example plastic material, which is firmly attached to the edge of freedom is connected.
  • This material can be a plastic material which has been provided, for example, with a view to improving the bearing properties of the needle shafts in the needle guide grooves of the needle bed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP87118670A 1987-03-04 1987-12-16 Gestanztes Strickwerkzeug für Textilmaschinen, insbesondere Strick- oder Wirkmaschinen Expired - Lifetime EP0282647B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3706856 1987-03-04
DE3706856A DE3706856C1 (de) 1987-03-04 1987-03-04 Gestanztes Strickwerkzeug fuer Textilmaschinen,insbesondere Strick- und Wirkmaschinen

Publications (2)

Publication Number Publication Date
EP0282647A1 EP0282647A1 (de) 1988-09-21
EP0282647B1 true EP0282647B1 (de) 1991-06-05

Family

ID=6322205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118670A Expired - Lifetime EP0282647B1 (de) 1987-03-04 1987-12-16 Gestanztes Strickwerkzeug für Textilmaschinen, insbesondere Strick- oder Wirkmaschinen

Country Status (8)

Country Link
US (1) US4783976A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0282647B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (2) JPS63227848A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR910001803B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CN (1) CN1006311B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1286120C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE3706856C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES2022283B3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843420C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1988-12-23 1989-11-30 Theodor Groz & Soehne & Ernst Beckert Nadelfabrik Kg, 7470 Albstadt, De
DE8913293U1 (de) * 1989-11-10 1989-12-28 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Gestanztes Strickwerkzeug für Textilmaschinen
DE4442943C1 (de) * 1994-12-02 1996-05-15 Groz & Soehne Theodor Gestanztes Strickwerkzeug für Textilmaschinen, insbesondere Wirk- oder Strickmaschinen
DE19729145C1 (de) 1997-07-08 1999-01-07 Groz Beckert Kg Gestanztes Strickwerkzeug für Textilmaschinen, insbesondere für Strick- und Wirkmaschinen
DE10152856C1 (de) * 2001-03-14 2003-04-24 Ulrich Hofmann Vorrichtung zum maschinellen Maschenbilden
DE10333172B4 (de) * 2003-07-22 2006-01-19 Groz-Beckert Kg Strickmaschinennadel
CN100402225C (zh) * 2005-12-05 2008-07-16 秦策 钢丝横机针后缺免铣加工方法
EP2045384B1 (de) * 2007-10-02 2012-08-22 Groz-Beckert KG Wirknadel
EP3081681B1 (de) * 2015-04-15 2017-03-22 Karl Mayer Textilmaschinenfabrik GmbH Wirkwerkzeugbarre
EP3088580A1 (de) * 2015-04-27 2016-11-02 Karl Mayer Textilmaschinenfabrik GmbH Musterfadenführer einer kettenwirkmaschine und verfahren zum herstellen eines musterfadenführers einer kettenwirkmaschine
PT3418434T (pt) * 2017-06-19 2019-06-11 Groz Beckert Kg Ferramenta de tricotar à máquina, em particular, agulha de tricotar à máquina

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578637A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-12-03 1976-08-13 Dubied & Cie Sa E
JPS579433Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1975-07-14 1982-02-23
DE2610078C3 (de) * 1976-03-11 1981-02-12 Mayer & Cie Gmbh & Co, 7470 Albstadt Zungennadel für Strickmaschinen
US4036036A (en) * 1976-03-22 1977-07-19 The Torrington Company Latch needle for knitting machines
JPS579433A (en) * 1980-06-17 1982-01-18 Pola Kasei Kogyo Kk Apparatus for measuring light passing degree of skin
DE3314809C2 (de) * 1983-04-23 1985-09-12 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Gestanztes Strickwerkzeug für Strick- oder Wirkmaschinen
DE3336212C1 (de) * 1983-10-05 1985-01-03 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Gestanztes Strickwerkzeug fuer maschenbildende Textilmaschinen
DE8706530U1 (de) * 1987-05-07 1987-06-25 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Gestanztes Strickwerkzeug für Textilmaschinen, insbesondere Strick- und Wirkmaschinen

Also Published As

Publication number Publication date
DE3706856C1 (de) 1988-03-03
CA1286120C (en) 1991-07-16
EP0282647A1 (de) 1988-09-21
CN88100798A (zh) 1988-09-14
ES2022283B3 (es) 1991-12-01
KR910001803B1 (ko) 1991-03-26
KR880011390A (ko) 1988-10-28
CN1006311B (zh) 1990-01-03
JPH0489583U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-08-05
US4783976A (en) 1988-11-15
JPS63227848A (ja) 1988-09-22
DE3770622D1 (de) 1991-07-11
JP2559776Y2 (ja) 1998-01-19

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