EP3266919B1 - Filznadel und verfahren zum herstellen zumindest einer filznadel - Google Patents

Filznadel und verfahren zum herstellen zumindest einer filznadel Download PDF

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Publication number
EP3266919B1
EP3266919B1 EP16177989.7A EP16177989A EP3266919B1 EP 3266919 B1 EP3266919 B1 EP 3266919B1 EP 16177989 A EP16177989 A EP 16177989A EP 3266919 B1 EP3266919 B1 EP 3266919B1
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EP
European Patent Office
Prior art keywords
bulge
needle
felting needle
radial direction
felting
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.)
Active
Application number
EP16177989.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3266919A1 (de
EP3266919C0 (de
Inventor
Jörg SCHREYECK
Christian Weber
Gustav Wizemann
Roland Schick
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
Priority to EP16177989.7A priority Critical patent/EP3266919B1/de
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to PL16177989.7T priority patent/PL3266919T3/pl
Priority to ES16177989T priority patent/ES2951533T3/es
Priority to CN201780042275.3A priority patent/CN109415860B/zh
Priority to BR112018069757-5A priority patent/BR112018069757B1/pt
Priority to RU2018139325A priority patent/RU2726795C1/ru
Priority to US16/315,459 priority patent/US10920350B2/en
Priority to JP2018559832A priority patent/JP6982002B2/ja
Priority to KR1020187032271A priority patent/KR102318474B1/ko
Priority to PCT/EP2017/065963 priority patent/WO2018007221A1/de
Publication of EP3266919A1 publication Critical patent/EP3266919A1/de
Application granted granted Critical
Publication of EP3266919C0 publication Critical patent/EP3266919C0/de
Publication of EP3266919B1 publication Critical patent/EP3266919B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles

Definitions

  • Felting needles and their manufacturing processes are known.
  • the density of tangled textile fibers is changed with felting needles.
  • the fibers are compacted into felt fabrics.
  • felting needles are suspended in a needle board by a hanger (often called a "foot"), which is often simply a curved portion of its shaft.
  • a hanger often called a "foot”
  • felting needles are often elongated needles that often end in a point at their working end (the end of the needle that faces the fibers).
  • a part of the aforementioned length of the needle is occupied by the working part, which is often followed by the point of the needle.
  • This working part usually has a specially formed cross-sectional area (polygon shapes such as triangles or squares are very often used). However, round shapes - such as teardrop shapes - are also known for such cross-sectional areas.
  • In the working part there are notches which run from the outer profile of the cross-sectional area of the working part towards the interior thereof. These notches are often made by piercing. The piercing of notches in felting needles is, inter alia, by the publications US 3,224,067B and US 2,495,926B shown.
  • the figures in these publications also show that the puncture process also produces puncture beads, which are important for the mode of operation of the notches outlined below.
  • the aforementioned notches hold the textile fibers during a working cycle of the needle board, which consists in a relative movement of the needle bed with respect to the textile fibers.
  • the notches are therefore of central importance in felt formation.
  • the puncture ridges support the mentioned holding function of the notches.
  • the pamphlet US 2,678,484B proposes to solve this problem, to provide felting needles, which are provided with a plurality of consecutive notches in the longitudinal direction of the needle, with a guide notch closest to the needle point, which is less pronounced and also has a less pronounced puncture bead than that of the Pointed further offending notches.
  • the US3983611A shows a notch of a needle having a puncture bead intended to extend longitudinally to increase the life of the needle.
  • the publication indicates a further development of US3641636A and thus ultimately the US3307238A to be. All of the aforementioned documents disclose--if the manufacture of the needle or the notch is discussed at all--only methods for piercing notches to form them.
  • the US3983611A also shows fiber retention recesses to increase service life. Accordingly, these indentations can also only have been caused by the piercing of the notch.
  • the object of the present invention is to increase the service life of felting needles.
  • the present invention is based on the last-mentioned publication and solves the problem in each case through the combination of features of claims 1 and 9.
  • most felting needles have a working part with a cross-sectional area that extends in the radial direction (r) and the circumferential direction ( ⁇ ) of the felting needle and is delimited in a large part of the longitudinal extent of the working part by a cross-sectional profile.
  • a large part of the longitudinal extent of the working part usually means that the working part deviates only in the border areas to the shank of the needle and/or the end of the needle on the working side (usually the point) and in the area of the notches and notch beads.
  • This is advantageous since the working part of the felting needles should dip into the fibres, with the notches and possibly the notch ridges mainly being intended to take the fibers with them. Accordingly, it is then mainly or exclusively the notches and possibly the notch beads that break through the cross-sectional profile of the working part or deviate from it.
  • At least one notch engages in the cross-sectional profile in the working part.
  • the notch is formed by a puncture which runs from the cross-sectional profile in the direction of the inside of the felting needle—or toward the needle axis.
  • the notches of felting needles generally run from the outer contour of the cross-sectional profile in the radial and axial direction towards the inner and possibly towards the axis of symmetry of the felting needles.
  • the at least one bulge can already be provided during the manufacture of the working part. However, it can advantageously also come about through a subsequent manufacturing process. It cantilevers beyond the cross-sectional profile in the radial direction only in a partial area of the extension of the working part in the longitudinal direction of the felting needle. The bulge is therefore not part of the cross-sectional profile, which is constant over a large part or even the entire working part. The bulge is also not a web or a rib in the sense of the US 3,224,067B , since these parts of the needle also run across the entire working part.
  • the bulge has at least volume components that are not attributable to the puncture bulge, i.e. that did not come about as a result of the volume displacement of the puncture to produce the notch. As a rule, however, the bulge is reinforced by the puncture bulge, which is an advantage.
  • the notch adjoins the outer surface of the bulge in the longitudinal direction of the felting needles.
  • the notch can do this by being before the bulge or after the bulge in the direction of advance of the needle during felting. If the bulge is made in front of the notch, it is advantageous to pierce the notch either immediately before the beginning of the bulge or even to pierce the bulge in such a way that the notch again immediately follows the (possibly new) outer surface of the bulge, but on no remnants of the bulge remain on the other side of the notch.
  • the notch can advantageously reach through the original outer surface of the bulge.
  • a small distance between the notch and the bulge is also possible (Examples: less than one notch length in the longitudinal direction of the needle (z), advantageously less than half a notch length in this direction (z), even greater advantages occur at a distance which is less than a quarter of the length of the notch opening in the longitudinal direction of the needle is).
  • the notch and the bulge have the same position in the circumferential direction and/or they lie on a ridge.
  • the already mentioned radial direction (r) of the needle is often also called "height direction”.
  • the at least one bulge has a height that varies in the direction of elongation of the needle.
  • the bulge has a convex profile (seen from the axis of symmetry of the needle) in the plane spanned by the longitudinal extension and the radial direction of the needle.
  • An angular profile can also bring advantages.
  • the height of the bulge shows local maxima.
  • the maximum height of the bulge is at least 25%, more preferably at least 30% of the total length of the bulge from the inflection point of the notch.
  • the bulge by a non-cutting machining process—such as a pressing process, for example—or to carry out at least part of the production of the bulge with such a process. It is advantageous here if the pressing tools or at least one pressing tool are moved at least predominantly in the circumferential direction and/or the radial direction of the needle. However, the at least one bulge can also already come about as a result of the molding process that produces the cross-sectional profile of the working part, or already during the production of the blank.
  • the first notch is located on that side of a first bulge which faces the needle tip in the longitudinal direction of the needle.
  • inverted notch needles or U needles there are also needles—so-called inverted notch needles or U needles—in which the notches are advantageously located along the longitudinal direction (z) of the needle on the side facing away from the needle tip.
  • the bulge already exists (for example already in the needle blank) or is formed before the notch is made. It is also advantageous to position the notch in such a way that the piercing chisel also displaces partial areas of the bulge when piercing the notch, or in this way increases the strength of the bulge in the radial and/or circumferential direction of the needle (it forms again a puncture bulge in the area of the bulge that reinforces it). This effect can come about when the chisel is applied in the immediate vicinity of the bulge or even on the bulge itself.
  • the at least one bulge is located at a point on the needle surface at which the edge of the cross-sectional profile of the working part is particularly far away from the needle axis. This is the case in the area of the webs or in the area of edges. If this design maxim is heeded, the at least one bulge protrudes beyond the already exposed web or the exposed edge, so that it comes into very strong contact with fibers during the felting process.
  • the bulge is a press bead
  • These two pressing tools act - at least predominantly - in the circumferential direction of the needle.
  • the effective direction will also contain components in the radial direction of the needle.
  • the direction of action of the two pressing tools is opposite, it being possible to move both tools by the same amount or by different amounts. In this case, one tool can only serve as a stop while the other tool or tools are being moved.
  • the bulge is provided with a clearly defined boundary surface in the radial direction of the needle.
  • This shaping of the boundary surface in the radial direction of the needle can go as far as a defined adjustment of the height of the bulge. This measure is therefore advantageous in all embodiments of the needles disclosed and claimed in this publication.
  • the shaping can be carried out with a die that acts at least predominantly in the radial direction of the needle.
  • a stamp that acts at least predominantly in the radial direction again means that the working surface of the stamp acts predominantly in the radial direction.
  • the stamp can be moved mainly in the radial direction. However, it can also serve as a stop that prevents further growth of the bulge in the radial direction.
  • such a stop acting in the radial direction prevents the bulge from growing further as a result of a pressing process in which the pressing tools act predominantly in the circumferential direction and thus displace the material of the bulge in the radial direction.
  • the punch acting in the radial direction serves as a stop for the displaced material of the bulge.
  • the stop or stamp acting in the radial direction can also be structurally connected to at least one of the pressing tools (possibly even in one piece), which act primarily in the radial direction of the needle and can produce the bulge if this is a press bead.
  • figure 1 shows a side view of a felting needle 1 of the prior art with a notch 2 and a notch bulge 3 created by the puncture of the notch.
  • the notch 2 has a notch depth 5.
  • the lower limit of the notch 2 is the notch base 9.
  • the notch breast is of further importance 20, which ends with increasing height (in the radial direction) in the inflection point 18 of the notch face 20.
  • the needle 1 shown has a standard triangular cross-sectional shape 24, as shown in figure 4 will be shown. Also the ones in the figures 2 and 3 The felting needles 1 shown have this cross-sectional shape 24. From the viewing plane 17 (see figure 4 ) the web 6 (such webs are often also called bevels) can therefore also be seen.
  • the bulge 7 with its maximum height 21 should be mentioned. As already mentioned, such a bulge can be produced in various ways.
  • the stamp impression 8 can be seen, which indicates that the bulge 7 shown there came about as a result of an embossing process. In figure 2 no notch 2 is shown.
  • figure 3 a side view of a felting needle 1, which is also provided with a notch 2 in addition to the bulge, so that a notch base 9 and a notch face 20 can also be seen again.
  • the geometry of the notch 2 and the bulge 7 shown can come about by the notch 2 being produced by a puncture which penetrates the surface of the bulge 7 which is already present.
  • FIGS. 4 to 9 show examples of different cross-sectional shapes 24-29 of working parts 15 of felting needles. These cross-sectional shapes or areas extend in the plane spanned by the radial direction (r) and the circumferential direction ( ⁇ ) of the respective felting needle 1 . These working parts 15 are advantageous, but the application of the present invention is extendable to other cross-sectional shapes.
  • figure 4 shows a standard triangular cross-sectional shape 24 of a working part 15, which is provided with three webs 6.
  • the viewing level 17 of Figures 1-3 , 11 and 12 as well as 16 and 17 was already mentioned.
  • the figure 5 shows the cross-sectional shape of a working part 15, which is often sold under the brand name Cross Star 25 and which has four webs 6.
  • the cross-sectional shape is 26 in figure 6 is often called the drop shape in professional circles.
  • the cross-sectional shape 27 shown is often called a pinch blade in professional circles.
  • the Figures 8 and 9 show a cross-sectional shape called Tristar 28 or EcoStar 29.
  • cross-sectional shapes mentioned have in common that they extend in the working part 15 of the needle in the radial (r) and the circumferential direction ( ⁇ ) and form the cross-sectional shape of the same in a large part of the longitudinal extent of the working part. Often only the notches 2 and the notch beads 3 and bulges 7 are exceptions in this respect.
  • the enumeration of the cross-sectional shapes in the present document has an exemplary character.
  • the present invention is suitable for the advantageous development of all known and future cross-sectional shapes. The same statement applies to different shapes of notches.
  • FIG 10 shows a felting needle 1 to clarify some of the terms used in this publication.
  • this 1 has a foot 10 for fastening it in a needle board. After a 90° bend, the shank 11 of the felting needle begins, which merges into a reduced shank 13 after the upper cone 12 .
  • felting needles are also known which only have a shank with a uniform diameter and not a shank 11 and a reduced shank 13 .
  • the lower cone 14 forms the transition to the working part 15, on which notches 2 can be seen.
  • the felting needle 1 ends in a tip 16.
  • structuring needles are also known in which this "tip" 16 or its working-side end has a different contour than in classic needles.
  • the present invention can be advantageously used with any felting needles.
  • figure 12 shows a common excerpt of the Figures 3 and 11 shown needle 1 from the same viewing plane 17. So are in figure 12 two notches 2 and two bulges 7 can be seen. The above items have the same position in the circumferential ( ⁇ ) direction. The length 32 of the notch opening in the longitudinal direction (z) of the needle 1 and the distance 33 from the edge of the notch opening to the start of the next bulge 7 is also shown. As already mentioned, it is advantageous if these two lengths or distances 32, 33 are in a certain relationship or if a certain minimum distance 33 is maintained.
  • a dashed line indicates where the needle axis 34 is within the needle.
  • the Figures 6 and 8 explicitly indicate the position of this needle axis with the reference number 34 .
  • This position is also outlined by a cross in the other figures, which show cross-sectional areas of needles 1 .
  • the needle axis 34 is the center of the part of the needle running in the longitudinal direction of the needle (Fig figure 10 Shank 11, upper cone 12, reduced shank 13, lower cone 14, working part 15 and possibly tip 15).
  • the needle axis 34 is the main axis of symmetry of the needle without the butt 10.
  • the figures 16 and 17 show side views of a portion of two needles 1 with non-inventive embodiments of bulges 7, which are provided with a specially formed boundary surface 36 of the bulge 7 in the radial direction (r).
  • This shaping of the boundary surface 36 can be carried out with a radially acting die 37 .
  • the double arrow 38 indicates the effective direction of this stamp.
  • the effective direction does not necessarily mean that the plunger 37 is also moved in this direction (r). On the contrary, it can also act in this direction if it is stationary in relation to the needle 1 and counteracts further growth of the bulge 7 while it is being formed.
  • the described molding of the boundary surface 36 is advantageous in all embodiments of the needle shown.
  • the height of the bulge or the radial distance between the needle axis 34 and the boundary surface 36 can be set exactly by the molding. It is of course also possible to set the position of the delimiting surface 36 in the other spatial directions. This is due to the difference between the embodiments according to FIG figures 16 and 17 clarifies: in the exemplary embodiment according to FIG figure 16 there is again a distance 31 between the maximum height 21 of the bulge 7 and the turning point 18 of the notch breast. After reaching the maximum height 21, the boundary surface 36 begins.
  • the distance 31 has shrunk to "zero". This result can be achieved by a different relative positioning of the radially acting punch 37 in the longitudinal direction (z) of the needle 1 when forming the boundary surface 36 (see again figure 17 ).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Details Of Garments (AREA)
EP16177989.7A 2016-07-05 2016-07-05 Filznadel und verfahren zum herstellen zumindest einer filznadel Active EP3266919B1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
PL16177989.7T PL3266919T3 (pl) 2016-07-05 2016-07-05 Igła do filcowania i sposób wykonania co najmniej jednej igły do filcowania
ES16177989T ES2951533T3 (es) 2016-07-05 2016-07-05 Aguja para fieltro y procedimiento para la fabricación de al menos una aguja para fieltro
EP16177989.7A EP3266919B1 (de) 2016-07-05 2016-07-05 Filznadel und verfahren zum herstellen zumindest einer filznadel
BR112018069757-5A BR112018069757B1 (pt) 2016-07-05 2017-06-28 Agulha de feltragem e processo para fabricação de pelo menos uma agulha de feltragem
RU2018139325A RU2726795C1 (ru) 2016-07-05 2017-06-28 Фильцевальная игла и способ изготовления по меньшей мере одной фильцевальной иглы
US16/315,459 US10920350B2 (en) 2016-07-05 2017-06-28 Felting needle and method for producing at least one felting needle
CN201780042275.3A CN109415860B (zh) 2016-07-05 2017-06-28 制毡针和用于制造至少一个制毡针的方法
JP2018559832A JP6982002B2 (ja) 2016-07-05 2017-06-28 フェルトニードル及び少なくとも１つのフェルトニードルを製造する方法
KR1020187032271A KR102318474B1 (ko) 2016-07-05 2017-06-28 펠트 바늘 및 적어도 하나의 펠트 바늘을 제조하는 방법
PCT/EP2017/065963 WO2018007221A1 (de) 2016-07-05 2017-06-28 Filznadel und verfahren zum herstellen zumindest einer filznadel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16177989.7A EP3266919B1 (de) 2016-07-05 2016-07-05 Filznadel und verfahren zum herstellen zumindest einer filznadel

Publications (3)

Publication Number Publication Date
EP3266919A1 EP3266919A1 (de) 2018-01-10
EP3266919C0 EP3266919C0 (de) 2023-06-07
EP3266919B1 true EP3266919B1 (de) 2023-06-07

Family

ID=56372774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16177989.7A Active EP3266919B1 (de) 2016-07-05 2016-07-05 Filznadel und verfahren zum herstellen zumindest einer filznadel

Country Status (10)

Country Link
US (1) US10920350B2 (pl)
EP (1) EP3266919B1 (pl)
JP (1) JP6982002B2 (pl)
KR (1) KR102318474B1 (pl)
CN (1) CN109415860B (pl)
BR (1) BR112018069757B1 (pl)
ES (1) ES2951533T3 (pl)
PL (1) PL3266919T3 (pl)
RU (1) RU2726795C1 (pl)
WO (1) WO2018007221A1 (pl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019230449A1 (ja) * 2018-05-29 2019-12-05 オルガン針株式会社 フェルト針
CN114746594A (zh) 2019-12-10 2022-07-12 奥瑞尔解决方案英国第一有限公司 多层针刺无纺布制品及其制造方法
EP4663826B1 (de) * 2024-06-13 2026-03-11 Groz-Beckert KG Filznadel, nadelbrett für eine filzmaschine und verfahren zum einführen einer filznadel in ein nadelbrett

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495926A (en) 1947-01-30 1950-01-31 Edson P Foster Felting needle
US2678484A (en) 1950-09-26 1954-05-18 Foster Edson P Felting needle
US2696035A (en) * 1952-08-26 1954-12-07 Edson P Foster Felting needle
US3224067A (en) 1963-10-11 1965-12-21 Edson P Foster Felting needles
US3307238A (en) * 1965-03-05 1967-03-07 Edson P Foster Felting needle
US3390440A (en) * 1966-02-17 1968-07-02 Edson P. Foster Felting needles
US3464097A (en) * 1967-06-01 1969-09-02 Singer Co Felting needle
US3641636A (en) * 1970-10-14 1972-02-15 Edson P Foster Felting needle
BE793988A (fr) * 1972-01-14 1973-05-02 Torrington Co Aiguille a feutrer
US3913189A (en) * 1975-01-06 1975-10-21 Edson P Foster Felting needle with barb on a single edge and an isosceles blade
DE2518066A1 (de) * 1975-04-23 1976-11-04 Torrington Gmbh Filznadel
US3983611A (en) * 1975-09-24 1976-10-05 The Singer Company Kick-up barb for felting needles
US4065955A (en) * 1976-06-15 1978-01-03 Foster Needle Company, Inc. Method and apparatus for forming a uniform felting needle barb
CN201506901U (zh) * 2009-09-03 2010-06-16 台州宇星制针有限公司 星形抗断无纺刺针
CN202519443U (zh) * 2012-03-15 2012-11-07 东华大学 一种针刺机正刺刺针
CN104790125A (zh) * 2015-04-24 2015-07-22 寿光市发达布业有限公司 一种玻纤聚酯纺粘非织造布用刺针

Also Published As

Publication number Publication date
JP2019519689A (ja) 2019-07-11
EP3266919A1 (de) 2018-01-10
KR20190025543A (ko) 2019-03-11
EP3266919C0 (de) 2023-06-07
PL3266919T3 (pl) 2023-11-27
KR102318474B1 (ko) 2021-11-01
CN109415860B (zh) 2022-04-05
WO2018007221A1 (de) 2018-01-11
JP6982002B2 (ja) 2021-12-17
CN109415860A (zh) 2019-03-01
ES2951533T3 (es) 2023-10-23
US10920350B2 (en) 2021-02-16
BR112018069757A2 (pt) 2019-02-05
US20190301066A1 (en) 2019-10-03
RU2726795C1 (ru) 2020-07-15
BR112018069757B1 (pt) 2022-09-20

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