EP2145990A1 - Dispositif de sélection d'aiguilles - Google Patents

Dispositif de sélection d'aiguilles Download PDF

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Publication number
EP2145990A1
EP2145990A1 EP08012752A EP08012752A EP2145990A1 EP 2145990 A1 EP2145990 A1 EP 2145990A1 EP 08012752 A EP08012752 A EP 08012752A EP 08012752 A EP08012752 A EP 08012752A EP 2145990 A1 EP2145990 A1 EP 2145990A1
Authority
EP
European Patent Office
Prior art keywords
needle
selection
selection element
guide
leg
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
EP08012752A
Other languages
German (de)
English (en)
Other versions
EP2145990B1 (fr
Inventor
Armin Diebold
Stefan Mayer
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 DE200850002304 priority Critical patent/DE502008002304D1/de
Priority to EP20080012752 priority patent/EP2145990B1/fr
Priority to CN200910159386XA priority patent/CN101629356B/zh
Publication of EP2145990A1 publication Critical patent/EP2145990A1/fr
Application granted granted Critical
Publication of EP2145990B1 publication Critical patent/EP2145990B1/fr
Not-in-force 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
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D04B15/78—Electrical devices

Definitions

  • the invention relates to a needle selection device of a knitting machine for selecting knitting needles, with a selection element and a magnet system by which the selection element can be influenced.
  • Such a needle selector is, for example, from EP 0 748 887 B1 known.
  • Needle selection elements are provided which select needles according to the knitting data and bring the needles into action to participate in the knitting process. This makes it possible to knit different patterns with the knitting machine.
  • a selection element 27 is arranged between the lock plate 61 and a selection magnet system 80.
  • the selection element 27 lies with its elastic leg 29 on the back of a slider 20. Furthermore, the slider 20 is partially on the needle board 14.
  • the selection elements When the selection elements are dropped from the selection magnet system into an operating position, the selection elements have no horizontal guidance. They are only pressed by the elastic leg 29 to the wedges 6, 7, which represents a certain uncertainty factor for the needle selection.
  • the object of the present invention is to provide a needle selection device which has fewer tolerances and in which the selection element is guided in a safer manner.
  • a needle selector of the type mentioned wherein the selection element has a cooperating with at least one guide element guide, wherein the guide is expandable against a restoring force.
  • the selection element is height-fixed by the at least one guide element.
  • the selection element is arranged in a defined horizontal position.
  • the guide can be formed by two legs, wherein an upper leg engages over at least one guide element. In an idle state, so if the selector is not affected by the Magnet system is tightened, the two legs have a defined distance from each other. If the selection element is brought into contact with the magnet system, then the upper leg, which is supported by the at least one guide element, remains substantially in its horizontal position, while by widening the guide, the second leg can pivot in the direction of the magnet system. This movement takes place against a restoring force, so that the selection element, when it is no longer tightened by the magnet system, automatically resumes its rest position.
  • the legs are connected together in such a way that they form the shape of a horizontal U.
  • the upper leg or a connecting region of the legs is designed to be flexible in bending.
  • the force which is necessary to pull the selector element from the position in which it adheres to the magnet system back to its starting position from the bending stress of the flexurally elastic leg, which may be formed as a bending spring, or by bending zones, for example in Connecting region of the two legs to be generated.
  • the guide elements represent a limitation of the displacement path of the selection element in the retracted and needle-near position.
  • the projection may in principle be provided on both legs, but is preferably provided on the lower leg.
  • the distance between the lower and the upper leg is preferably designed so that the guide elements are included. In particular, the distance between the legs is matched to the guide elements.
  • the guide elements may for example be formed in each case as wires, which extend through needle bed webs transversely to the direction of movement of the selection element through the needle bed.
  • the selection element is designed to be yielding in an area at its remote end. As a result, tolerances of the selection element or tolerances of lock parts, which act on the selection element in this area, be compensated.
  • the end remote from the needle comprises a leg which can be deflected against a restoring force and which cooperates with a lock part.
  • the deflectable leg can be formed flexurally elastic and represent a bending spring.
  • the selection element and the slider are arranged in the direction of movement of the slider only one behind the other. This means that they do not overlap and are not stacked in the vertical direction. This also allows tolerances can be avoided.
  • the needle selector can be made flatter thereby.
  • the scope of the invention also includes a knitting machine having a needle selection device according to the invention.
  • the Fig. 1a to 1d show the course of the selection of a knitting needle, which is to participate in the knitting process for the purpose of stitching or for hanging stitches, etc.
  • the selection is made by means of a selection element 1, which cooperates with a selection magnet system 2.
  • the selection element 1 and the selection magnet system 2 are part of a needle selector 100, in which the selection element 1 a Slider 3 acted upon, which in turn acts on a needle plate 4 shown only in sections, whereby the unillustrated foot according to the selection state of the selection element 1 with its corresponding lock parts is engaged or not.
  • the selection element 1 is mounted with its upper leg 11 on the formed as wires 6 and 7 guide elements which extend transversely to the direction of movement of the selection element 1 through the needle bed webs 9 of the needle bed 5.
  • the selection element 1 For storage of the selection element 1, other cross-sectional shapes of the guide elements can be used.
  • the selection element 1 further comprises a lower leg 12, which is connected via a region 13 with the upper leg 11.
  • the distance between the two legs 11 and 12 to each other corresponds approximately to the diameter of the wires 6 and 7, resulting in an exact height fixation of the selection element 1 in the needle bed.
  • the space between the legs 11, 12 forms a guide.
  • the upper leg 11 is resilient (bending elastic) executed and the lower leg 12 rigid. This is achieved in that the upper leg has a cross section which allows a bend, and the lower leg 12 has a cross section which prevents bending, so that the lower leg 12 is rigid.
  • the lower leg 12 has approximately on half of its length on a projection 14 which is, in the installed state of the selection element 1 in the needle bed 5, between the two wires 6 and 7 and extending in the direction of the upper leg 11.
  • the wires 6 and 7 have in addition to the storage of the selection element 1, the second task of limiting the displacement of the selection element 1, wherein the wire 6 forms the boundary point for the retracted position of the selection element 1 and the wire 7, the boundary point for its foremost (needle) position , They act together with the projection 14 of the selection element 1 in each case, which comes in the rear and front end position of the selection element 1 in the immediate vicinity of one of the wires 6 and 7.
  • the leg 12 widens at its rear end to the functional area 15.
  • the system is carried out on the selection magnet system 2.
  • the supply movement is introduced to the selection magnet system 2 on the surface 152. Due to the elastic leg 151, the needle-distal region of the selection element is made yielding.
  • control foot 16 In front of the functional area 15, directed upwards, is the control foot 16, which, when the selection element 1 is not pivoted downwards, interacts with the lock part 83.
  • the lock parts 83 and 84 for movement initiation in the selection element 1 via its control foot 16 are attached to the lock plate 8.
  • the foot 17 is directed upward, with which the exact position of the selection element 1 to the selection point of the selection magnet system 2 is determined by comprising of the lock parts 85 and 86 becomes. These lock parts also move the Selection element 1 on foot 17 from its advanced position to its selection position.
  • the lock plate 8 has at its rear end the angle bar 81. In the opening 82, the selection magnet system 2 is fixed. By this arrangement, the selection element 1 is located between the lock plate 8 and the selection magnet system. 2
  • Fig. 1a shows in detail a situation in which the selection element 1 is in its selection position, in which it was brought by the detection of the foot 17 through the lock parts 85, 86.
  • the projection 14 of the selection element 1 is located close to the wire 6.
  • FIG. 1b is pressed by the application of the leg 151 through the lock member 84, the selection element 1 with its surface 150 on the permanent magnet, not shown, of the selection magnet system 2.
  • leg 151 is formed as a bending spring, the predetermined by the lock part 84 Andschreibweg be increased so that any tolerances in the components 1, 2, 84 are compensated and thus always secure pressing the surface 150 of the selection element 1 secured to the selection magnet system 2 is.
  • the selection element 1 is located in the Fig. 1c with its surface 150, which is formed on the leg 12, on the selection magnet system 2 at. In this case, the selection element 1 is supported by its legs 11 on the wires 6 and 7.
  • the permanent magnet must at least apply the force that is generated by the deformation of the leg 11 (bending spring).
  • Fig. 2a shows the in the Fig. 1a to 1d shown and described, preferred embodiment of the selection element 1 in an enlarged view.
  • the upper leg 11 is resilient by a suitably selected cross-section.
  • the lower leg 12 for the purpose of positioning and positioning accuracy of the selection element 1 when pressing the selection magnet system 2 towards executed by a suitably selected cross section dimensionally stable.
  • Fig. 2b shows a further embodiment of a selection element 1 '.
  • Selection element 1 Unlike in Fig. 2a Selection element 1 'has a defined bending region 18 between the upper and lower dimensionally stable legs 11, 12. In this bending region 18, the cross-section is reduced so that the pivotal movement of the leg 12 takes place in it and the corresponding force is generated which the leg 12 is retracted to its original position.
  • Fig. 2c also shows a further embodiment of a selection element 1 ".
  • selection element 1 is in this selection element 1 "of the bending region 18 'in the region of the articulation of the dimensionally stable leg 11 to the dimensionally stable legs 12th

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP20080012752 2008-07-15 2008-07-15 Dispositif de sélection d'aiguilles Not-in-force EP2145990B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE200850002304 DE502008002304D1 (de) 2008-07-15 2008-07-15 Nadelauswahleinrichtung
EP20080012752 EP2145990B1 (fr) 2008-07-15 2008-07-15 Dispositif de sélection d'aiguilles
CN200910159386XA CN101629356B (zh) 2008-07-15 2009-07-15 选针装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080012752 EP2145990B1 (fr) 2008-07-15 2008-07-15 Dispositif de sélection d'aiguilles

Publications (2)

Publication Number Publication Date
EP2145990A1 true EP2145990A1 (fr) 2010-01-20
EP2145990B1 EP2145990B1 (fr) 2011-01-12

Family

ID=39713946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080012752 Not-in-force EP2145990B1 (fr) 2008-07-15 2008-07-15 Dispositif de sélection d'aiguilles

Country Status (3)

Country Link
EP (1) EP2145990B1 (fr)
CN (1) CN101629356B (fr)
DE (1) DE502008002304D1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0748887A1 (fr) * 1995-06-15 1996-12-18 Shima Seiki Manufacturing, Ltd. Dispositif de sélection d'aiguilles pour un métier à tricoter rectiligne
EP1541734A1 (fr) * 2002-06-26 2005-06-15 Shima Seiki Manufacturing, Ltd. Dispositif de selection d'aiguilles d'une machine de tricotage trame

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0748887A1 (fr) * 1995-06-15 1996-12-18 Shima Seiki Manufacturing, Ltd. Dispositif de sélection d'aiguilles pour un métier à tricoter rectiligne
EP0748887B1 (fr) 1995-06-15 2001-04-04 Shima Seiki Manufacturing, Ltd. Dispositif de sélection d'aiguilles pour un métier à tricoter rectiligne
EP1541734A1 (fr) * 2002-06-26 2005-06-15 Shima Seiki Manufacturing, Ltd. Dispositif de selection d'aiguilles d'une machine de tricotage trame

Also Published As

Publication number Publication date
CN101629356A (zh) 2010-01-20
DE502008002304D1 (de) 2011-02-24
CN101629356B (zh) 2011-11-16
EP2145990B1 (fr) 2011-01-12

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