EP0209486A2 - Strickmaschine mit elektro-magnetischer Auswahl der Nadeln - Google Patents

Strickmaschine mit elektro-magnetischer Auswahl der Nadeln Download PDF

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Publication number
EP0209486A2
EP0209486A2 EP86810265A EP86810265A EP0209486A2 EP 0209486 A2 EP0209486 A2 EP 0209486A2 EP 86810265 A EP86810265 A EP 86810265A EP 86810265 A EP86810265 A EP 86810265A EP 0209486 A2 EP0209486 A2 EP 0209486A2
Authority
EP
European Patent Office
Prior art keywords
selector
rocker
selectors
positions
knitting machine
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
EP86810265A
Other languages
English (en)
French (fr)
Other versions
EP0209486A3 (en
EP0209486B1 (de
Inventor
Fritz Kohler
André Perotti
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.)
Edouard Dubied et Cie SA
Original Assignee
Edouard Dubied et Cie SA
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 Edouard Dubied et Cie SA filed Critical Edouard Dubied et Cie SA
Publication of EP0209486A2 publication Critical patent/EP0209486A2/de
Publication of EP0209486A3 publication Critical patent/EP0209486A3/fr
Application granted granted Critical
Publication of EP0209486B1 publication Critical patent/EP0209486B1/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
    • 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

Definitions

  • the present invention relates to a knitting machine according to the preamble of claim 1.
  • Swiss Patent 648,070 describes such a knitting machine in which each needle can be selected electromagnetically according to the so-called "three-track” technique, in order to execute different designs or shapes of articles. Therefore, the needles can be controlled individually in the working position, in the picking position and in the out of working position.
  • the sliding members each movable in two distinct positions by the electromagnetic selection stations, are arranged juxtaposed in pairs and assigned to a needle by means of a tilting selector.
  • the tilting selectors are arranged so as to obtain three distinct positions corresponding to the three desired needle positions.
  • the purpose of the present invention is to have an additional possibility of selection by means of the appropriate selection members, for example for making a machine allowing knitting of elongated stitches at will so that that the additional length thus obtained favors the transfer of stitches from one bed to another, particularly at the selvedges and twists.
  • Swiss patent 448,358 describes a mechanical device applied to rectilinear knitting machines, which comprises drop cams having two stepped working faces with which the heels of the keys actuate the needles which can be brought into contact at will by a known selection mechanism .
  • the heels engaged with one of the two stepped faces are intended for the formation of ordinary or normal meshes, the heels engaged with the other face, for the formation of elongated meshes.
  • an additional selection possibility can also be used to make a machine which makes it possible to incorporate into the "3-track” positions already known per se, an additional position in the form of a "mesh transfer” position. .
  • Bed 1 in fig. 1 is one of the needle beds of a straight knitting machine which generally comprises two needle beds arranged in pairs, in the form of a roof.
  • This needle bed 1 comprises a plurality of grooves 2 parallel to each other.
  • a needle 3 linked to a key 4, a selector-rocker 5 and a selector-guilloche 6.
  • the key 4 is composed of a flexible strand 7 provided with a heel 8 in the middle as well as a foot 9 located at the far end of the needle3.
  • the groove 2 is deepened towards the rear, on the right in FIG. 1, and thus forms two sliding surfaces 11, 12 on on which slide the needle 3 and the foot 9.
  • the needle. 3 also includes a hook 13 with a pallet 14 in a known manner.
  • the key 4 is provided with a retaining nose 15.
  • a permanent out of work of the needle is obtained manually by embedding the heel 8 of the key 4 in the groove 2, the retaining nose 15 passing under a wire 16, will maintain the key 4 in this position and the needle inactive until a manual move has been made.
  • the selector-rocker 5 is pivotally mounted on an axis 18, integral with the needle bed 1. It comprises an upper strand 19 and a lower strand 20 forming between them a fork in which the selector-guilloche is guided 6.
  • the lower strand 20 takes support on the flexible strand 7 of the key 4, between the retaining nose 15 and the foot 9.
  • the rocker selector 5 also comprises a feeler 21, diametrically opposite the fork with respect to the pivot axis 18.
  • a wire 22, secured to the needle bed 1 defines an extreme position of said rocker selector 5.
  • the guilloché selector 6 can slide longitudinally over a distance defined by the nose 23 acting either on the notch 24 or on the side of the heel 25 of the selector-guilloché 6. This heel 25 may or may not cooperate with cam tracks 26, in a manner described below.
  • An auxiliary bed 27 is mounted on the bed 1, in the extension of the grooves 2. It comprises a plurality of grooves 28, the number of which is twice the grooves 2 of the bed 1.
  • the grooves 28 slide organs in the form of a first lower selector 29a and a second lower selector 29b, placed alternately in juxtaposition and retained vertically by wires 30 and 31, integral with the auxiliary needle bed 27.
  • An upper selector 32 also belonging to the sliding members is mounted on each lower selector 29a resp. 29b.
  • Each lock 1 is assigned a lock 33 shown in FIG. 2. It consists of a first knitting device 34 and a second knitting device 35. Each lock 33 is provided with fixed cams 36, 39, 41.
  • the drop cams 37 are movable in a plane parallel to the lock.
  • the fall cams 37 are stepped allowing heels to travel in ordinary or special fall.
  • Only the ascending cams 40 are movable in a plane perpendicular to the lock. They can be selectively placed in a distant or close position, relative to their needle bed. These positions are only modified for work in transfer of meshes.
  • Fixed vertical cams 42 (Fig. 1) are assigned to each knitting device. These are fixed cams 42a and 42b for the knitting device 34 and cams 42b and 42c for the knitting device 35 (fig. 2). The fixed vertical cam 42b being designed to cooperate with the two knitting devices.
  • a cam path 26a, 26b (fig. 2) is assigned to each knitting device. This path is formed by the upper cams 43a and 43b and the lower cams 44a and 44b. Each cam path 26 comprises at its entry and exit funnels 45, an ascending part 46a and a descending part 46b, seen in the direction of movement of the locks.
  • a fixed vertical cam 47 (fig. 1) is assigned to each knitting device. The vertical cam 47a belongs to the knitting device 34 and the vertical cam 47b to the knitting device 35 (FIG. 2).
  • Each knitting device is directly preceded, seen in the direction of operation of the locks, by a selection station as shown in FIG. 2.
  • the selection station 48 precedes the knitting device 34 and the selection station 49 precedes the knitting device 35.
  • the selection station 50 precedes the knitting device 35 and the selection station 49 precedes the selection device knitting 34.
  • the selection station 49 is designed to cooperate with knitting devices 34 and 35, depending on the direction of operation of the locks.
  • Each of the selection stations 48, 49, 50, as shown in FIG. 3, comprises a base plate 51 on which are mounted two identical selection half-stations 52, 53, to form the selection channel in which the upper selectors 32 pass.
  • This device is designed to work in one direction or in the other.
  • the selection channel comprises a tapering entry, limited by flanks 55 and 56 and by a selection point defined as being the narrowest point of the channel situated between the poles 57 and 58 of the selection electromagnets (not shown) and a widening outlet, limited by the point of selection and flanks 61 and 62.
  • each needle either in the out-of-working position, or in picking, or in the formation of normal stitches, or in the formation of elongated stitches, a selection is made here at two distinct positions of the upper selectors 32, two of which are assigned to each needle 3. The two distinct positions are reached if one or other of the selection electromagnets is energized and pulls the upper selector 32 located in the narrowest part of the channel against its pole 57 , resp. 58. Then, this selector follows the flank 61 resp. 62 and it is pulled by magnetic bonding out of the plane of longitudinal symmetry of the selection station.
  • the upper selector 32 is mounted on the lower selector 29a, resp. 29b (fig. 4, 6 and 8). The latter must, therefore, follow the movements of the first and it thus occupies one or the other of the two distinct positions described above.
  • the left end of the lower selector 29a comprises a bearing face 64a located at the upper level from the bottom of the groove 28, connected by a flexible strand 68 to the central part 70.
  • Juxtaposed and separated by a non-magnetic partition 72 is the lower selector 29b. Its left end comprises a bearing face 64b located at the lower level to be counted from the bottom of the groove 28. In addition, a lateral widening 69 added at this same end, in the direction of the lower selector 29a, makes it possible to influence the level of the bearing face 64a of the lower selector. 29a.
  • the two lower selectors 29a and 29b can act on the same rocker selector 5 thanks to a lateral widening 73 of the nose 67 (fig. 5, 7 and 9) located opposite the left ends of the lower selectors 29a and 29b.
  • each rocker selector 5 rotates about its axis 18 and the nose 67 of said rocker selector 5 is located above the left end of the lower selector 29a rest. 29b.
  • the selection station 48 moves the upper selectors 32 to the two distinct positions.
  • the lower selectors 29a and 29b, the upper selectors 32 of which are selected at 32a, have their left ends advanced so that the noses 67 abut on the bearing faces 64a of the lower selectors 29a which in turn are supported on the lateral widening 69 of the lower selectors 29b, thus preventing their rocker selectors 5 from returning (FIG. 4).
  • the heels 66 of the corresponding wedges will remain embedded in the needle bed 1 and will thus be in position 8a in FIG. 3.
  • the corresponding needles 3 will remain out of work.
  • the lower selectors 29a whose upper selectors 32 are selected at 32b, will have their left ends advanced, the lower selectors 29b, whose upper selectors 32 are selected at 32a, will have their left ends moved back, so that the noses 67 will abut on the bearing faces 64a (fig. 8) lowered due to the flexible strand 68 of the lower selectors 29a.
  • their rocker selectors 5 will return to a second middle position where they still partially press on the flexible strands 7 of the keys 4 so that the respective heels 8 partially leave the bed 1 and will be supported by the cams of the knitting device 34. See position 8b in fig. 3.
  • the corresponding needles 3 will form normal or ordinary stitches.
  • the lower selectors 29a and 29b whose upper selectors 32 are selected at 32b, will have their left ends moved back so that they are out of reach of the noses 67 (FIG. 1). Thus, their rocker selectors 5 will return to the position shown in FIG. 1, this under the pressure of the spring 65. These rocker selectors 5 no longer press on their keys 4 which are therefore supported by the cams of the knitting device.
  • the heels 25 of the corresponding guilloched selectors 6 follow the path of the cams 26a (FIG. 3). They undergo an ascent in the ascending part 46a, such that their lower heels 66 are pushed in the path of action of the fixed vertical cam 47a. According to the same principle as the vertical cam 42a, it presses on the lower heels 66.
  • the heel 8 of the corresponding key 4 is momentarily drowned and takes the position 8d of FIG. 3.
  • the descending part 46b returns the selector-guilloché 6 to its position shown in FIG. 1 and the heel 8 of the key 4 fits into the cam path and it is knocked down by the fall cam 37.
  • the needles thus selected will make thread picking.
  • the same process takes place for the next knitting device, in this case, the knitting device 35, by means of the fixed vertical cam 42b of the selection station 49 and the fixed vertical cam 47b.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP86810265A 1985-07-12 1986-06-13 Strickmaschine mit elektro-magnetischer Auswahl der Nadeln Expired - Lifetime EP0209486B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3027/85 1985-07-12
CH3027/85A CH663231A5 (fr) 1985-07-12 1985-07-12 Machine a tricoter a selection electromagnetique des aiguilles.

Publications (3)

Publication Number Publication Date
EP0209486A2 true EP0209486A2 (de) 1987-01-21
EP0209486A3 EP0209486A3 (en) 1987-11-11
EP0209486B1 EP0209486B1 (de) 1990-08-08

Family

ID=4246995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810265A Expired - Lifetime EP0209486B1 (de) 1985-07-12 1986-06-13 Strickmaschine mit elektro-magnetischer Auswahl der Nadeln

Country Status (6)

Country Link
US (1) US4644763A (de)
EP (1) EP0209486B1 (de)
JP (1) JPS6215364A (de)
CH (1) CH663231A5 (de)
DE (1) DE3673275D1 (de)
ES (1) ES8705537A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100494538C (zh) * 2005-07-13 2009-06-03 冯加林 具有两段压针密度的织针与辅针组合装置
CN100494539C (zh) * 2005-07-29 2009-06-03 冯加林 具有多段压针密度的织针和含有三针踵挺针片的辅针组合装置
JP5952693B2 (ja) * 2012-09-19 2016-07-13 ショーワグローブ株式会社 編機及び手袋の製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512471A1 (fr) * 1981-09-08 1983-03-11 Dubied & Cie Sa E Machine a tricoter a selection electromagnetique des aiguilles
CH641852A5 (en) * 1981-09-08 1984-03-15 Dubied & Cie Sa E Knitting machine with electromagnetic needle selection
CH648070A5 (en) * 1982-07-19 1985-02-28 Dubied & Cie Sa E Knitting machine with electromagnetic needle selection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717014A (en) * 1971-09-13 1973-02-20 Dubied & Cie Sa E Jacquard rectilinear knitting machines
DE2515201A1 (de) * 1975-04-08 1976-10-14 Schieber Universal Maschf Flachstrickmaschine mit ueber druckleisten gesteuerten nadeln
JPS5468440A (en) * 1977-11-08 1979-06-01 Shima Idea Center Co Ltd V bed knitting machine
DE3237732A1 (de) * 1982-10-12 1984-04-12 H. Stoll Gmbh & Co, 7410 Reutlingen Flachstrickmaschine mit nadelauswahleinrichtung
DE3406870C2 (de) * 1984-02-25 1986-06-12 H. Stoll Gmbh & Co, 7410 Reutlingen Flachstrickmaschine mit elektromechanischer Auswahl

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512471A1 (fr) * 1981-09-08 1983-03-11 Dubied & Cie Sa E Machine a tricoter a selection electromagnetique des aiguilles
CH641852A5 (en) * 1981-09-08 1984-03-15 Dubied & Cie Sa E Knitting machine with electromagnetic needle selection
CH648070A5 (en) * 1982-07-19 1985-02-28 Dubied & Cie Sa E Knitting machine with electromagnetic needle selection

Also Published As

Publication number Publication date
ES556630A0 (es) 1987-05-01
CH663231A5 (fr) 1987-11-30
JPS6215364A (ja) 1987-01-23
US4644763A (en) 1987-02-24
DE3673275D1 (de) 1990-09-13
ES8705537A1 (es) 1987-05-01
EP0209486A3 (en) 1987-11-11
EP0209486B1 (de) 1990-08-08

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