EP1847639A1 - Platine coupe fil d'une machine à tricoter à fontures rectilignes - Google Patents

Platine coupe fil d'une machine à tricoter à fontures rectilignes Download PDF

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Publication number
EP1847639A1
EP1847639A1 EP06008245A EP06008245A EP1847639A1 EP 1847639 A1 EP1847639 A1 EP 1847639A1 EP 06008245 A EP06008245 A EP 06008245A EP 06008245 A EP06008245 A EP 06008245A EP 1847639 A1 EP1847639 A1 EP 1847639A1
Authority
EP
European Patent Office
Prior art keywords
thread
cutting board
control
thread cutting
catching element
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
EP06008245A
Other languages
German (de)
English (en)
Other versions
EP1847639B1 (fr
Inventor
Jürgen Dipl.-Ing. Mohr
Christian Dipl.-Ing. Haap (FH)
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.)
H Stoll GmbH and Co KG
Original Assignee
H Stoll GmbH and Co 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 H Stoll GmbH and Co KG filed Critical H Stoll GmbH and Co KG
Priority to EP06008245A priority Critical patent/EP1847639B1/fr
Priority to DE502006004125T priority patent/DE502006004125D1/de
Priority to CN2007100966905A priority patent/CN101058919B/zh
Publication of EP1847639A1 publication Critical patent/EP1847639A1/fr
Application granted granted Critical
Publication of EP1847639B1 publication Critical patent/EP1847639B1/fr
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
    • 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
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/56—Thread guides for flat-bed knitting machines
    • D04B15/565—Associated thread-clamping or thread-severing devices

Definitions

  • the invention relates to a thread cutting board of a cutting device of a flat knitting machine with a thread catching element and a drive element, a cutting device of a flat knitting machine and a flat knitting machine.
  • the threads are preferably clamped between the thread guide and a separation point.
  • devices which can be mounted on both sides of a needle bed. They consist of a cutting bed, in which a plurality of equally spaced grooves are introduced. In these grooves, one-piece thread cutting boards are arranged, which are displaceable in the same directions as the knitting needles. The movement of the thread cutting boards is initiated via the same knitting lock, which also controls the knitting needles. The thread cutting boards thus carry out the same movements as the knitting needles. Thus, the position of the thread insert is the same.
  • Object of the present invention is to provide a thread cutting board, with which the above-mentioned disadvantages can be avoided.
  • this object is achieved in a particularly simple and surprising manner in that in a thread cutting board of the type mentioned, the thread catching element and the drive element are movable relative to each other at least within limits.
  • the thread cutting board in comparison to the prior art now consists of several parts, in particular two parts, the front part of the thread cutting board, namely the thread catching element, perform a deviating from the purely linear movement of the drive element movement and thus moved out of the range of a yarn guide become. As a result, collisions can be reliably prevented.
  • the thread catching element is pivotable relative to the drive element. As a result, it can be pivoted out of the area of the thread guide.
  • the thread catching element and the drive element are coupled to one another via a coupling with play.
  • the thread catcher element is retracted with a delay from its position of maximum deflection.
  • the thread guide is at a safe distance from the thread catching element.
  • propulsion means for propelling the thread catching element and different retraction means are provided in a coupling area. Due to the different propulsion means and retraction means, the time delay can be realized.
  • the thread catching element and the drive element can be in direct contact with each other during the propulsion. On the other hand, they can have a certain distance from each other during a return movement.
  • couplings for example a tab coupling or the like with a time delay element.
  • a playful coupling can be implemented particularly simply if the coupling has a rear grip for a head piece (for example, a thickening) of a coupling portion of one of the elements, in particular of the thread catching element.
  • the drive element may have a slot for receiving the head piece of the coupling portion.
  • the coupling portion may have a shaft which passes through a slot opening into the slot.
  • the boundaries of the slot can limit the vertical displacement of the coupling portion and thus the thread catching element.
  • the boundaries of the slot may define a pivot axis. Due to the interaction of the elongated hole with the head piece, a relative movement in the direction of displacement of the drive element is possible. At the same time, however, a pivoting movement is made possible.
  • the coupling section can also be located in the drive element, and the slot for receiving the head piece of the coupling region in the thread catching element.
  • the thread catching element has a control cam or a control for cooperation with a control or a control cam of a cutting device. This can ensure that the thread catching element performs a predetermined, defined movement.
  • control cam has at least two control levels or control sections.
  • control level or the control section preferably causes a control level or the control section, a movement of the thread catching element in the same plane as the drive element and the other control level or the control section, the pivotal movement of the thread catching element.
  • the control cam may be formed as a control groove or control contour, wherein the control groove is preferably formed in the thread catching element and the control contour is preferably formed on one side of the thread catching element.
  • two control contours - one at the top and one at the bottom - can be provided on the thread catching element.
  • the drive element comprises a guide, in particular a guide groove. This can ensure that the drive element performs a purely linear movement.
  • the guide of the drive element is straight and slides the drive element along a sliding plane. Through the guide, the drive element receives its height fixation.
  • the thread catching element in the region of its free end clamping means, in particular a toothing has.
  • the clamping means can cooperate with a corresponding device of the cutting device and pinch the thread before cutting off the thread.
  • the thread cutting board is thus formed as a clamping cutting board.
  • the scope of the invention also includes a cutting device of a flat knitting machine with at least one thread cutting board, as described above.
  • the thread cutting board is guided in a groove of a cutting bed, wherein the groove has a lowering groove bottom at one end.
  • the groove base defines a sliding plane for the thread cutting board.
  • the lowering groove base represents a cutout, so that the (pivoting) movement of the thread catching element is not hindered.
  • the cutting device controls, in particular wires, for cooperation with cams and the leadership of the thread cutting board.
  • the controls are preferably arranged stationary and round in order to minimize frictional forces.
  • the scope of the invention also includes a flat knitting machine with a previously described cutting device.
  • Fig. 1 shows a plan view of a section of a cutting device 10.
  • Several thread cutting boards 1, 100 for clamping and cutting threads are arranged in the longitudinal direction of the cutting bed 5 in each case in a groove 51 side by side.
  • a clamping device 8 and a blade 9 At the end of each groove 51 to the comb gap 40 out there are a clamping device 8 and a blade 9, wherein a thread between a trained as a toothed clamping means at the free end of the thread cutting boards 1, 100 and a pinion formed as a clamping device 8 can be clamped.
  • Fig. 2 shows a schematic representation of a plan view of a knitting lock 200, by which the movement of the knitting needles and the thread cutting boards 1, 100 is effected.
  • the lock passage 205 is formed by the knock-out part 201 and the delimiting part 210, which are flanked by the needle knives 220 and 220 '.
  • a likewise schematically illustrated yarn guide 300 is located in the direction of movement of the knitting cam represented by the arrow X at a distance a behind the center Y of the knitting cam 200.
  • the letters A - E designate the advancing and retreating positions of the thread cutting board 1, 100 at significant positions, which correspond to FIGS. 3a to 3e and 4a to 4e, respectively.
  • the foot 24 of the thread cutting board 1, 100 is located on the ejection part 201.
  • the thread cutting board 1, 100 is in its advancing movement in the direction of the arrow K1, shown in Figs. 3a and 4a.
  • the position B corresponds to the last propulsion position in which the thread cutting board 1, 100 as a whole moves exclusively linearly, shown in Figs. 3b and 4b.
  • a drive element 2, 102 of the thread cutting board 1, 100 performs a return movement in the direction of the arrow K2, which acts only delayed on the thread catching element 3, 103, shown in Figs. 3d and 4d.
  • the thread cutting board 1 is divided into a drive element 2 and a thread catching element 3 having a catch hook, which are successively arranged in the same sliding plane 4 of the cutting bed 5 and coupled together.
  • the sliding plane 4 represents the straight (horizontal) portion of the groove bottom of the groove 51.
  • the sliding movement of the thread cutting board 1 is introduced via not shown knitting cam parts in the direction of the arrows K1 and K2, which are in communication with the foot 24 of the drive element 2.
  • the elements 2 and 3 can be moved simultaneously with each other linearly in the direction of comb gap 40, wherein the thread catching element 3 at least with its free end at a certain time in addition to its linear movement can perform a pivoting movement to a position which is lower than the slip plane 4th Das Drive element 2 always performs only a linear movement.
  • the drive element 2 has at its end facing the thread catching element 3 a slot 22 into which a head piece 32 of a coupling section projects, which is connected via a shaft 31 of the coupling portion with the thread catching element 3.
  • the end face 25 of the drive element 2 touches the end face 37 of the thread catching element 3 and thereby initiates the advancing movement into the thread catching element 3.
  • the end faces 25, 37 thus form driving means.
  • the formed as a nose Schlitzberandung 21 of the drive element 2 abuts against the upper side of the shaft 31 and causes its height fixation and thus a limitation for the vertical displacement of the thread catching element.
  • the rear side of the oblong hole 22 is spaced from the head piece 32 when the end face 25 abuts against the end face 37.
  • the boundaries 26, 27 therefore form withdrawal means.
  • the head piece 32 simultaneously forms the pivot point for the pivoting movement of the thread catching element 3.
  • the length of the guide 23 corresponds to the maximum linear movement that the drive element 2 can perform in the direction of the comb gap 40 and back.
  • the control cam 33 is formed with different height levels 33 ', 33 "If the thread catching element 3 is displaced in the direction of the comb gap 40, it is initially held by the control element 7 at a level corresponding to the drive element 2. Upon further displacement of the element 3 in the direction Comb gap 40 passes the cam 33 with its level 33 ", which is above the level 33 ', the control 7. The thread catching element 3 thus performs a pivoting movement in a position in which the underside of the thread catching element 3 is below the level of the sliding plane 4 ,
  • the drive element 2 and the thread catching element 3 of the thread cutting board 1 are moved together by applying the foot 24 by not shown lock parts in the direction of the arrow K1 from its basic position toward the comb gap 40.
  • the thread catching element 3 is thereby pushed by the drive element 2.
  • the end face 25 of the drive element 2 and the end face 37 of the thread catching element 3 lie flat against each other.
  • the thread catching element 3 is supported in this movement on the level 33 'of the control cam 33 on the control element 7 and is thus kept at the level of the sliding plane 4.
  • the drive element 2 and the thread catching element 3 of the thread cutting board 1 are moved further in the direction of the arrow K1 toward the comb gap 40. This is the position in which the end of the pure linear movement of the thread catching element 3 is reached.
  • the thread catching element 3 is held in this movement further by the control element 7 on the level 33 'of the control cam 33, which corresponds to the level of the sliding plane 4, and is located at the transition to the level 33 "of the cam 33rd
  • the drive element 2 and the thread catching element 3 of the thread cutting board 1 are further displaced in the direction of the arrow K1 and are in their furthest advanced position to the comb gap 40 out.
  • the yarn catching element 3 Due to the interaction of the control element 7 with the level 33 "of the control cam 33, the yarn catching element 3 has performed a pivoting movement in the direction of the arrow D for its linear movement in the direction of the comb gap 40 and opposite the drive element 2 has assumed a position in which the underside of the thread catching element 3 below the level of glide level 4 ..
  • the head piece 32 is in contact with the boundaries 26 and 27 of the slot 22 of the drive element 2. This results in a distance Z (FIG. 3e) between the drive element 2 and the thread catching element 3.
  • the yarn catching element 3 Due to the interaction of the control element 7 with the level 33 'of the control cam 33, the yarn catching element 3 has performed a pivoting movement in the direction of the arrow U for its linear movement in the direction away from the comb gap 40. The thread catching element 3 has thus assumed a position which is equal to the position of the sliding plane 4.
  • FIGS. 4a to 4e show an alternative embodiment of a thread cutting board 100. Corresponding functional elements are designated by the same reference numerals as in FIGS. 3a to 3e.
  • the height fixing and movement control of the thread catching element 103 during its linear movement takes place via a control element 108 designed as a wire, which is fastened in the cutting bed 5 and on which the control cam 140 moves along the upper side of the thread catching element 103.
  • the cam 140 is formed as a control contour and has a horizontally extending portion 140 'and an obliquely rising to this extending portion 140 "as control sections.
  • the thread catching element 103 On its underside, the thread catching element 103 has a control cam 141. This is also formed as a control contour and has a horizontally extending portion 141 'and an obliquely extending to this area 141 "as control sections The area 141 'carries out its sliding movement in the direction of the comb gap 40 and back on the sliding plane 4.
  • the region 141 "carries out its displacement movement in the direction of the comb gap 40 and back on the inclined plane 4 ', wherein the plane 4' represents a sinking groove bottom If the thread catching element 3 is displaced in the direction of the comb gap 40, then it is deflected by the control element 108 initially held at the level of the drive element 102. As the element 103 moves further in the direction of the comb gap 40, the upper control cam 140 passes the control element 108 with its region 140 ", which lies above the level of the region 140 '.
  • FIG. 4a corresponds to that of FIG. 3a.
  • the thread catching element 103 moves with the region 141 'of its underside on the sliding plane 4.
  • the height level is maintained by abutment of the area 140' of the top of the element 103 on the control element 108.
  • FIG. 4b corresponds to that of FIG. 3b.
  • the thread catching element 3 is held in this movement further through the region 140 'of the upper side 140, which slides along the control element 108, at the level of the sliding plane 4 and is located at the transition to the area 140 "of the upper cam 140th
  • Fig. 4c corresponds to that of Fig. 3c. Due to the interaction of the control element 108 with the area 140 "of the upper control cam 140 of the thread catching element 103, this has, in addition to its linear movement in the direction of the comb gap 40, performed a pivoting movement in the direction of the arrow D and assumed a position which is at least in the lower region below the sliding plane 4 lies.
  • the lower control cam 141 of the element 103 has moved with the region 141 'over the edge 4 "and is now located with its region 141" on the sliding plane 4'.
  • Fig. 4d corresponds to Fig. 3d.
  • the introduction of the movement into the drive element 102 results in a distance Z (FIG. 4 e) between the drive element 102 and the thread catching element 103.
  • FIG. 4e corresponds to that of FIG. 3e.
  • edge 4 " which acts as a control here
  • this has a pivoting movement in the direction of the arrow U in addition to its linear movement in the direction of the comb gap 40 103 has thus taken a position which is equal to the position of the sliding plane 4.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP06008245A 2006-04-21 2006-04-21 Platine coupe fil d'une machine à tricoter à fontures rectilignes Active EP1847639B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06008245A EP1847639B1 (fr) 2006-04-21 2006-04-21 Platine coupe fil d'une machine à tricoter à fontures rectilignes
DE502006004125T DE502006004125D1 (de) 2006-04-21 2006-04-21 Fadenschneidplatine einer Flachstrickmaschine
CN2007100966905A CN101058919B (zh) 2006-04-21 2007-04-23 平针织机的切纱片、切裁装置和平针织机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06008245A EP1847639B1 (fr) 2006-04-21 2006-04-21 Platine coupe fil d'une machine à tricoter à fontures rectilignes

Publications (2)

Publication Number Publication Date
EP1847639A1 true EP1847639A1 (fr) 2007-10-24
EP1847639B1 EP1847639B1 (fr) 2009-07-01

Family

ID=36811507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06008245A Active EP1847639B1 (fr) 2006-04-21 2006-04-21 Platine coupe fil d'une machine à tricoter à fontures rectilignes

Country Status (3)

Country Link
EP (1) EP1847639B1 (fr)
CN (1) CN101058919B (fr)
DE (1) DE502006004125D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2354285A1 (fr) * 2010-02-09 2011-08-10 Shima Seiki Mfg., Ltd Dispositif de manipulation de fil à tricoter pour machine à tricoter à plat
EP2824227A1 (fr) * 2013-07-10 2015-01-14 Steiger Participations SA Dispositif de pincement et de coupe pour une machine à tricoter rectiligne
JP2015132026A (ja) * 2014-01-10 2015-07-23 株式会社島精機製作所 シンカー装置を備えた横編機

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640094A (en) * 1968-05-06 1972-02-08 Mecmor Spa Device for cutting and gripping threads in circular knitting machines and the like
US4099392A (en) * 1976-06-21 1978-07-11 Francesco Lonati Yarn cutting and gripping device for a circular knitting machine
EP0615560A1 (fr) * 1991-12-02 1994-09-21 Schieber Universal Maschf Procede et dispositif de serrage de fils.
EP0990724A2 (fr) * 1998-09-30 2000-04-05 H. Stoll GmbH & Co. Dispositif pour pincer et sectionner des fils dans un métier à tricoter
EP1666653A1 (fr) * 2003-09-19 2006-06-07 Shima Seiki Manufacturing Limited Dispositif et procede destines a traiter un fil d'extremite d'une machine de tricotage trame

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640094A (en) * 1968-05-06 1972-02-08 Mecmor Spa Device for cutting and gripping threads in circular knitting machines and the like
US4099392A (en) * 1976-06-21 1978-07-11 Francesco Lonati Yarn cutting and gripping device for a circular knitting machine
EP0615560A1 (fr) * 1991-12-02 1994-09-21 Schieber Universal Maschf Procede et dispositif de serrage de fils.
EP0990724A2 (fr) * 1998-09-30 2000-04-05 H. Stoll GmbH & Co. Dispositif pour pincer et sectionner des fils dans un métier à tricoter
EP1666653A1 (fr) * 2003-09-19 2006-06-07 Shima Seiki Manufacturing Limited Dispositif et procede destines a traiter un fil d'extremite d'une machine de tricotage trame

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2354285A1 (fr) * 2010-02-09 2011-08-10 Shima Seiki Mfg., Ltd Dispositif de manipulation de fil à tricoter pour machine à tricoter à plat
EP2824227A1 (fr) * 2013-07-10 2015-01-14 Steiger Participations SA Dispositif de pincement et de coupe pour une machine à tricoter rectiligne
CN104278424A (zh) * 2013-07-10 2015-01-14 斯泰格尔合作公司 用于横编织机器的夹持和切割设备
US20150013393A1 (en) * 2013-07-10 2015-01-15 Steiger Participations Sa Pinching and Cutting Device for a Flat Knitting Machine
FR3008432A1 (fr) * 2013-07-10 2015-01-16 Steiger Participations Sa Dispositif de pincement et de coupe pour une machine a tricoter rectiligne
CN104278424B (zh) * 2013-07-10 2018-02-02 斯泰格尔合作公司 用于横编织机器的夹持和切割设备
TWI631255B (zh) * 2013-07-10 2018-08-01 斯泰格控股公司 橫編機之夾持及切斷裝置
JP2015132026A (ja) * 2014-01-10 2015-07-23 株式会社島精機製作所 シンカー装置を備えた横編機

Also Published As

Publication number Publication date
EP1847639B1 (fr) 2009-07-01
CN101058919A (zh) 2007-10-24
DE502006004125D1 (de) 2009-08-13
CN101058919B (zh) 2011-12-21

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