EP1826307A1 - Boucleur pour machine à tufter - Google Patents

Boucleur pour machine à tufter Download PDF

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Publication number
EP1826307A1
EP1826307A1 EP06003769A EP06003769A EP1826307A1 EP 1826307 A1 EP1826307 A1 EP 1826307A1 EP 06003769 A EP06003769 A EP 06003769A EP 06003769 A EP06003769 A EP 06003769A EP 1826307 A1 EP1826307 A1 EP 1826307A1
Authority
EP
European Patent Office
Prior art keywords
gripper
pile
edge
gripper device
tufting
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.)
Granted
Application number
EP06003769A
Other languages
German (de)
English (en)
Other versions
EP1826307B1 (fr
Inventor
Hillenbrand Bernd
Werner Moser Hans
Maute Andrea
Wäschle Roland
Kaas Timo
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
Priority to EP06003769.4A priority Critical patent/EP1826307B1/fr
Priority to CN2007100053935A priority patent/CN101024912B/zh
Priority to JP2007040964A priority patent/JP4393524B2/ja
Priority to KR1020070017928A priority patent/KR101345570B1/ko
Priority to US11/709,803 priority patent/US7707953B2/en
Publication of EP1826307A1 publication Critical patent/EP1826307A1/fr
Application granted granted Critical
Publication of EP1826307B1 publication Critical patent/EP1826307B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/26—Tufting machines with provision for producing patterns
    • D05C15/36—Tufting machines with provision for producing patterns by selective cutting of loops
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/16—Arrangements or devices for manipulating threads
    • D05C15/22—Loop-catching arrangements, e.g. loopers; Driving mechanisms therefor
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/16—Arrangements or devices for manipulating threads
    • D05C15/24—Loop cutters; Driving mechanisms therefor

Definitions

  • the invention relates to a gripper device for tufting machines, as they are in particular for carpet production in use.
  • Tufting methods consist in providing a sheet-like carrier material (a so-called "backing") with a pile.
  • the pile consists of a large number of individual threads, which are stabbed in rows by tufting needles through the backing.
  • the backing stitch by stitch is gradually moved under a row of needles.
  • the resulting loops are temporarily held by grippers to remain on the return stroke of the needles. If the slings remain unharmed, a loop pile is created. If the slings are cut open, a cutting pile is created.
  • the gripper has in its interior a straight cutting edge, can be cut on the recorded loops by means of a knife for the production of cutting edge.
  • the closure member is provided at its back with a shallow recess which serves as a receptacle for slings that are not cut. With an actuator, the closure member can be controlled so that the entrance is released into the gripper interior or not, so that the loops either run into this interior or (if the input is not released) are temporarily absorbed by the closure member.
  • the loops are cut at the cutting edge of the gripper. It creates cut pile.
  • the loops are held by the gripper and then dropped. It creates loop pile.
  • the gripper device has a gripper which is subdivided into two sections.
  • a first gripper section serves to produce loop pile. He picks up the slings in loop pile mode.
  • a second gripper section is used to produce Schneidflor. He picks up the slings in the cutting pile mode.
  • the loops are thus in the critical size determining working phase, namely during the return stroke of the needles, each held by the gripper, wherein the gripper portion for the loop pile and the gripper portion for the Schneidflor each at such a position in relation can be arranged on the gripper that the desired pile height arises.
  • the height offset is measured at right angles to the gripper edges.
  • the gripper sections can be arranged or formed with or without height offset from each other on the gripper. This pile height differences that result in the production of cutting edge by the slicing of the loops can be compensated. It can be made both carpets, in which the pile height of the loop pile and the pile height of the cutting pile are the same as carpets, where the cutting pile is higher or lower than the loop pile.
  • the gripper edges of the two gripper portions are preferably straight and arranged in a common (vertical) plane. Furthermore, in an advantageous embodiment, they are parallel to one another and offset relative to one another both in the gripper edge longitudinal direction and in the pile height direction.
  • the gripper edges are further preferably arranged parallel to an adjustment direction of the gripper relative to the module block on which the gripper is mounted or held.
  • the gripper sections are preferably arranged at a distance, in particular at a distance measured in gripper edge longitudinal direction to each other. They can be separated by a step.
  • a projection which is also referred to as a gripper hook, may be provided on the step. This projection serves to prevent the pile yarn from unintentionally sliding from one gripper section to the other.
  • the gripper edges are preferably rounded transversely to their longitudinal direction and accordingly blunt as far as a sliding along the gripper edge Florfaden not injured becomes.
  • the so far gentle treatment of the pile yarn leads to a high quality of the produced Schlingenflors.
  • the gripper is preferably mounted adjustably on a guide part, wherein it is connected to an actuating unit. With the actuator, it can be transferred to a retracted position in which its first gripper portion is activated to produce the loop pile. With the actuator, he can also be positioned in an advanced position, which is spaced from its free end, and is behind its step or its hook, so that loops are no longer dropped but a cutting edge fed.
  • the cutting edge may be formed on the guide part, which is associated with a knife. The formation of the cutting edge on the guide member has the advantage that the gripper comes into frictional contact only with the tufting needle, but not with the knife. It can thus be matched to the interaction with the tufting needle with regard to its wear properties.
  • the guide part can be matched to the knife with regard to its material and wear properties.
  • the gripper and the guide member can each be integrally and seamlessly formed from the respective optimum material, for example, softer steel for the gripper and harder steel for the guide member.
  • guide parts can be put together in one module. It is possible interchangeable to arrange the guide parts or to keep in the module with a material connection. This can be done for example by gluing, casting with metallic materials or non-metallic materials, soldering, etc. It is also possible to attach the guide parts directly to the bar of a tufting machine.
  • FIG. 1 illustrates a module block 1 belonging to a tufting machine, as it is present in a larger number in a tufting machine.
  • Such module blocks are mounted side by side on a bar which extends transversely to the direction of movement of the carpet to be produced, preferably below it.
  • the tufting machine includes a bar with tufting needles, of which a tufting needle 2 is illustrated in FIG. They serve to sting pile threads through the backing.
  • the module blocks are used to hold the loops so generated and release unharmed or cut as needed.
  • the module block 1 has a base body 3 with mutually angled bearing surfaces 4, 5, which are associated with the bar.
  • a bore 6 serves to attach the module block 1 to the bar.
  • Each gripper device 10 On its side facing the backing (in Figure 1 above) of the module block is provided with mutually parallel grooves 7, 8, 9, in each of which a gripper device 10 is seated.
  • Each gripper device 10 consists of a gripper 11 and a guide member 12. While the guide member 12 is immovably connected to the module body 3, the gripper 11 against the guide member 12 and thus against the module block 1 is movable. In the preferred embodiment, the gripper 11 is mounted linearly displaceable against the guide member 12.
  • FIG. 1 and FIG. 1 a illustrate a knife 47 which has a cutting edge 48 and cooperates with the guide part 12, as explained later, to produce a cutting edge.
  • the guide member 12 and the knife 47 form a cutter.
  • the illustrated in Figure 1a tufting needle is an L-tufting needle, that is, it has its chamfer with down-facing thread groove on the left side, ie in Figure 1a right.
  • the gripper 11 and the guide part 12 are illustrated in a perspective opposite to the viewing direction of FIG.
  • the guide member 12 is based on a flat body, substantially uniform thickness, wherein the thickness is approximately equal to the width of one of the grooves 7 to 9.
  • a flat, wide, over the entire length of the guide member 12 extending groove 13 is formed, which preferably has a flat groove bottom 14 and two mutually parallel, mutually facing flanks 15, 16.
  • the groove 13 is a guide for the gripper 11, whose cross section substantially coincides with the cross section of the groove 13 so that it is held with slight play in Nutlnature parallel to the groove bottom 14 and the flanks 15, 16 slightly slidable.
  • the guide member 12 has below the groove 13 a holding portion 17 which is provided with two bores 18, 19.
  • the holes 18, 19 are aligned with corresponding holes 20, 21 which are provided in the module body 3 and the grooves 7, 8, 9 prevail.
  • a section 22 Adjoining the holding section 17 below the groove 13 is a section 22 which may be wedge-shaped to the extent that it has an edge 23 oriented parallel to the groove 13.
  • the edge 23 is preferably inclined at an acute angle to the groove 13.
  • the resulting by the acute-angled arrangement of the portion 22 space is necessary so that the knife 47 of the adjacent gripper device 10, which is arranged obliquely to the guide member 12, can perform its feed movement without collision.
  • the oblique arrangement of the knife 47 is helpful, so that enough force for the cutting process.
  • the section 22 is substantially rectangular bounded. At its front, remote from the holding portion 17 end, it may have an edge 24 which is oriented at right angles to the groove 13. Alternatively, the edge 24 may be oriented obliquely to the groove 13.
  • the guide part 12 is cut out, so that only one upper part and the flank 15 are present of the groove bottom 14. In this area, the flank 16 is missing.
  • the perpendicular thereto border or edge 28 of the groove bottom 14 forms the cutting edge 28.
  • the cutting edge 28 is made of the groove bottom 14 and an edge 50th formed (Figure 6a), which is arranged at this angle ⁇ of 90 degrees and oriented parallel to the edge 16. As can be seen from FIGS.
  • the rear side of the guide part 12 forms the contact surface for the knife 47 in the region of the cutting edge 28.
  • the cutting angle ⁇ can be changed by the arrangement of the edge 50.
  • An arrangement of the edge 50 at a 90-degree angle to the cutting edge 28 leads to a cutting angle of 0 degrees.
  • An arrangement of the edge 50 at an angle of less than 90 degrees leads to an acute-angled cutting edge 28.
  • the gripper 11 is designed as a slide, which at its end 29 for loop receiving a first gripper portion 30 and at a distance to a second gripper portion 31 has.
  • the gripper portions 30, 31 are preferably arranged at a distance with respect to an indicated in Figure 3 by an arrow 32 and predetermined by the Nutlteilscardi the groove 13 direction of movement.
  • a step 33 is further preferably provided between the gripper portions 30, 31, .
  • this can pass into an extension 34, which is also referred to as a hook.
  • the step 33 and the extension 34 prevent undesired passage of a loop from one gripper section 30, 31 to the other.
  • the gripper portions 30, 31 each have on one and the same side of the gripper 11, in Figure 1 on the lower side, a gripper edge 35, 36, which are adapted to hold Florfadenschlingen.
  • the gripper edges 35, 36 are in the direction of movement (arrow 32) straight and parallel to this. However, they are curved in the lateral direction or rounded so as not to violate the pile thread of the recorded loop.
  • the gripper edges 35, 36 are also rounded at the end 29, at the hook 34, at the step 33 and at the edge end 37 of the gripper edge 36.
  • the gripper 11 which is to be inserted like a slider in the groove 13, bounded by straight narrow sides 38, 39, between which it has substantially flat flat sides.
  • a recess 41 which serves to connect a schematically indicated in Figure 4 actuator 42. This can sit on a schematically indicated bar 43, which also carries the module block 1.
  • the gripper device 10 described so far operates as follows:
  • the module block 1 and gripper assembly 10 are used to make a loop pile carpet.
  • a pile yarn 44 is pierced by the backing 45 of each tufting needle 2 of the needle bar, the tufting needles 2 in Figure 4 are congruent one behind the other.
  • staggered module There are also applications known to use the so-called staggered module.
  • the actuator 42 is used to select the gripper 11 to make loop pile. This means that within a module 1 each gripper 11 can be controlled individually by the setting unit 42.
  • both sling and velor goods can be produced.
  • the actuator 42 adjusts the gripper 11 to its retracted position as shown in FIG. 4. This position maintains the gripper 11 with respect to the module block 1 during the entire tufting process to produce loop pile. Illustrated in FIG. 4 is an example of a tufting machine, in which the gripper 11 is set against the direction of movement of the backing 45, which is identified by an arrow 46. If the tufting needle 2 has pierced the pile thread 44 through the backing 45, the bar 43 is moved so that the gripper 11 with its gripper portion 30 pierces between the tufting needle 2 and the pile thread 44. As long as the tufting needle 2 is withdrawn, the bar 43 remains in the position illustrated in FIG. 4, so that the forming loop is held fast.
  • the bar 43 is moved in Figure 4 to the right, so that the gripper portion 30 just still detained snare 49, as Figure 5 illustrates.
  • the bar 43 can be moved linearly or, as shown, perform a pivoting movement.
  • the backing 45 is further advanced by one stitch width in the direction of the arrow 46, and the tufting needle 2 begins again, as shown, to pierce the pile yarn 44 through the backing 45.
  • FIGS. 4 and 5 illustrate the operation of the above-described apparatus for the production of Schneidflor.
  • the actuator 42 has moved the gripper 11 to its advanced position. He therefore projects much further out of the guide member 12 than before.
  • the gripper section 31 is now approximately at the location, relative to the bar 43 or the module block 1, at which the gripper section 30 has previously stood according to FIGS. 4 and 5. Therefore, as shown in FIG. 6, when the loop is caught, when the hook 11 is inserted between the tufting needle 2 and the pile thread 44, the hook portion 31 comes into close proximity to the tufting needle 2.
  • the forming stitch is therefore held behind the step 33.
  • the needle 2 is retracted, it can not slide back onto the first gripper portion 30. This also applies if the bar 43, as shown in Figure 7, performs a return stroke.
  • the step 33 and the extension 34 secure the loops on the gripper section 31.
  • the loops gradually move towards the guide part 12, wherein they reach the cutting edge 28 of the guide part 12 from the gripper edge 36.
  • This cutting edge 28 forms a cutting gap with the knife 47 and its cutting edge 48.
  • the knife 47 can move on the loops or stitches so that the cutting gap is closed and the loop is cut open. This results in a cutting pile consisting of stitch loops of cut loops. The result is a so-called velours fabric.
  • the desired also referred to as pole height
  • pile height for the loop pile and for the cutting pile are each set separately.
  • desired changes of the pile height and the pile height difference can be effected by exchanging the grippers 11.
  • the gripper 11 and the guide member 12 can be replaced separately as wearing parts.
  • the gripping device according to the invention for a tufting machine has a gripping device 10.
  • the gripping device 10 includes a gripper 11 and a guide member 12 on which a cutting edge 23 is formed.
  • the gripper 11 has two spaced apart in the direction of movement and from each other preferably by a step 33 and / or an extension 34 separate gripper sections 30, 31 in the form of mutually parallel, but spaced from one another and offset from each other in Flor Harrisonnraum gripper edges 35, 36.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Knitting Machines (AREA)
EP06003769.4A 2006-02-24 2006-02-24 Boucleur pour machine à tufter Not-in-force EP1826307B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP06003769.4A EP1826307B1 (fr) 2006-02-24 2006-02-24 Boucleur pour machine à tufter
CN2007100053935A CN101024912B (zh) 2006-02-24 2007-02-16 用于簇绒机的夹持装置
JP2007040964A JP4393524B2 (ja) 2006-02-24 2007-02-21 タフティング機用のグリッパ装置
KR1020070017928A KR101345570B1 (ko) 2006-02-24 2007-02-22 터프팅 기계용 그리퍼 도구
US11/709,803 US7707953B2 (en) 2006-02-24 2007-02-23 Gripper device for tufting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06003769.4A EP1826307B1 (fr) 2006-02-24 2006-02-24 Boucleur pour machine à tufter

Publications (2)

Publication Number Publication Date
EP1826307A1 true EP1826307A1 (fr) 2007-08-29
EP1826307B1 EP1826307B1 (fr) 2016-12-14

Family

ID=36649087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06003769.4A Not-in-force EP1826307B1 (fr) 2006-02-24 2006-02-24 Boucleur pour machine à tufter

Country Status (5)

Country Link
US (1) US7707953B2 (fr)
EP (1) EP1826307B1 (fr)
JP (1) JP4393524B2 (fr)
KR (1) KR101345570B1 (fr)
CN (1) CN101024912B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2182103A1 (fr) * 2008-10-29 2010-05-05 Groz-Beckert KG Outil destiné à la fabrication de surfaces textiles
EP2412860A1 (fr) 2010-07-28 2012-02-01 Groz-Beckert KG Crochet avec un corps à double insert
WO2015132211A1 (fr) * 2014-03-03 2015-09-11 Groz-Beckert Kg Boucleur profilé
EP3540110A1 (fr) 2018-03-15 2019-09-18 Groz-Beckert KG Dispositif de manipulation de boucleur, unité et procédé de manipulation de modules de boucleur

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8141505B2 (en) 2008-02-15 2012-03-27 Card-Monroe Corp. Yarn color placement system
US8359989B2 (en) 2008-02-15 2013-01-29 Card-Monroe Corp. Stitch distribution control system for tufting machines
US9016217B2 (en) 2011-08-09 2015-04-28 Columbia Insurance Company Methods and devices for controlling a tufting machine for forming carpet with enhanced seams
DE102015101495B4 (de) * 2015-02-03 2016-08-25 Groz-Beckert Kg Schlingengreifer mit Rückhalteelement
US11193225B2 (en) 2016-03-17 2021-12-07 Card-Monroe Corp. Tufting machine and method of tufting
US10233578B2 (en) * 2016-03-17 2019-03-19 Card-Monroe Corp. Tufting machine and method of tufting
US11585029B2 (en) 2021-02-16 2023-02-21 Card-Monroe Corp. Tufting maching and method of tufting
CN113215739B (zh) * 2021-05-08 2022-06-10 多利隆人造草坪集团有限公司 一种地弹坪生产用簇绒机
CN116856127A (zh) * 2023-07-13 2023-10-10 河北亚奥纺织有限公司 一种能够增加纱线强度的圈绒地毯生产装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155318A (en) * 1977-06-02 1979-05-22 Yoshio Yamamoto Looper for tufting machines
US4185569A (en) 1979-01-29 1980-01-29 Spencer Wright Industries, Inc. Method and apparatus for tufting even level cut pile and loop pile in the same row of stitching
JPS58144162A (ja) * 1982-02-12 1983-08-27 ハニ−スチ−ル株式会社 タフテイング方法、ル−パ−の取付構造、及びル−パ−
US4466366A (en) * 1982-02-12 1984-08-21 Haniisuchiiru Co., Ltd. Method of tufting cut pile and loop pile in the same row of stitching
JPS6228457A (ja) * 1985-07-24 1987-02-06 廣津　俊昭 タフテイング方法
WO2001020069A1 (fr) * 1999-09-16 2001-03-22 Spencer Wright Industries, Inc. Machine a tufter

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US2990792A (en) * 1958-03-12 1961-07-04 Lees & Sons Co James Industrial apparatus
US4029029A (en) * 1974-07-22 1977-06-14 Patrick F. Henry, Sr. Method and apparatus for tufting high and low cut pile in the same row
US4435778C1 (en) * 1981-05-18 2002-09-03 Ibm Method for editing spatially related data in an interactive text processing system
US4397249A (en) * 1982-04-01 1983-08-09 Spencer Wright Industries, Inc. Tufting machine hook for forming low pile fabric
US4522132A (en) * 1984-02-27 1985-06-11 Spencer Wright Industries, Inc. Cut/loop hook for tufting machines
US4557209A (en) * 1984-07-13 1985-12-10 Tuftco Corporation Sculptured high-low cut pile tufting method and apparatus
JPS6135303A (ja) 1984-07-27 1986-02-19 Hitachi Ltd パタ−ン欠陥検査装置
JPH0635703A (ja) * 1992-07-20 1994-02-10 Fujitsu Ltd 仮説推論処理方法
DE4435723C2 (de) * 1994-10-06 1996-08-08 Zimmermann Jos Gmbh & Co Kg Tuftingverfahren sowie zur Ausführung dieses Verfahrens geeignete Tuftingvorrichtung
US7007617B2 (en) * 2003-11-26 2006-03-07 Card-Monroe Corp. Gate assembly for tufting machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155318A (en) * 1977-06-02 1979-05-22 Yoshio Yamamoto Looper for tufting machines
US4185569A (en) 1979-01-29 1980-01-29 Spencer Wright Industries, Inc. Method and apparatus for tufting even level cut pile and loop pile in the same row of stitching
JPS58144162A (ja) * 1982-02-12 1983-08-27 ハニ−スチ−ル株式会社 タフテイング方法、ル−パ−の取付構造、及びル−パ−
US4466366A (en) * 1982-02-12 1984-08-21 Haniisuchiiru Co., Ltd. Method of tufting cut pile and loop pile in the same row of stitching
JPS6228457A (ja) * 1985-07-24 1987-02-06 廣津　俊昭 タフテイング方法
WO2001020069A1 (fr) * 1999-09-16 2001-03-22 Spencer Wright Industries, Inc. Machine a tufter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2182103A1 (fr) * 2008-10-29 2010-05-05 Groz-Beckert KG Outil destiné à la fabrication de surfaces textiles
EP2412860A1 (fr) 2010-07-28 2012-02-01 Groz-Beckert KG Crochet avec un corps à double insert
WO2015132211A1 (fr) * 2014-03-03 2015-09-11 Groz-Beckert Kg Boucleur profilé
EP3540110A1 (fr) 2018-03-15 2019-09-18 Groz-Beckert KG Dispositif de manipulation de boucleur, unité et procédé de manipulation de modules de boucleur
US11028513B2 (en) 2018-03-15 2021-06-08 Groz-Beckert Kg Loop gripper handling device and handling unit and process for handling loop gripper modules

Also Published As

Publication number Publication date
US20070200286A1 (en) 2007-08-30
KR20070088366A (ko) 2007-08-29
KR101345570B1 (ko) 2013-12-30
JP2007224490A (ja) 2007-09-06
US7707953B2 (en) 2010-05-04
CN101024912B (zh) 2012-07-18
EP1826307B1 (fr) 2016-12-14
CN101024912A (zh) 2007-08-29
JP4393524B2 (ja) 2010-01-06

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