US3466897A - Multiple system double-cylinder circular knitting machine - Google Patents

Multiple system double-cylinder circular knitting machine Download PDF

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Publication number
US3466897A
US3466897A US574735A US3466897DA US3466897A US 3466897 A US3466897 A US 3466897A US 574735 A US574735 A US 574735A US 3466897D A US3466897D A US 3466897DA US 3466897 A US3466897 A US 3466897A
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United States
Prior art keywords
sliders
cam
cylinder
needles
knitting machine
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Expired - Lifetime
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US574735A
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English (en)
Inventor
Horst Paepke
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Mayer and Cie GmbH and Co
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Mayer and Cie GmbH and Co
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/10—Circular knitting machines with independently-movable needles with two needle cylinders for purl work or for Links-Links loop formation

Definitions

  • a needle transfer selecting means is situated only at each second one of a plurality of cam systems of the lower cylinder of a double cylinder machine, and the plurality of cam systems coact with the sliders which are selected and not selected by the selecting means to return the selected ones of the sliders t0 the non-selected sliders only after the selected ones of the sliders have moved through a cam system to transfer needles to the upper cylinder and another cam system to receive needles back from the upper cylinder, so that return of the selected sliders is brought about only at every other cam system of the plurality of lower cylinder cam systems.
  • This invention relates generally to a multiple-system double cylinder circular knitting machine and in particular to a machine of this type having a large cylinder Width and higher number of systems than similar circular knitting machines of the prior art; the machine of this invention is thereby adapted to manufacture a patterned links-links type of knitted fabric having a Jacquard type knitted pattern.
  • Links-links types of circular knitting machines are known in the art.
  • the cam members of the upper and lower cylinders are, however, in the vertical sense provided throughout with identical tracking patterns so that the needles of each knitting system can selectively work on both cylinders.
  • the needles must be continuously pressed out at common loop sinking position at both cam sides in each system.
  • the selective shifting of the needles from one cylinder to the other is effectuated by means of adjustable cams arranged at the middle of the corresponding cam member which guide the slides for the engaging and disengaging of the needles.
  • This arrangement of the cam members requires, however, relatively broad systems, so that only a relatively small number of systems can be arranged around the perimeter of the machine. Consequently, there can only be knitted a relatively small number of rows of loops with each revolution of this known links-links type of circular knitting machine.
  • the machine of this invention overcomes the afore- "ice described disadvantages of the prior art devices by arranging and shaping the cam members thereof so that they have a shortened width, without detracting from the proper guiding of the needles or their sliders.
  • a Jacquard apparatus is only arranged at each second system of the lower cylinder and all sliders of the machine pass through the selecting mechanism thereof. The latter mechanism selects by means of transfer cam members the needles corresponding to the system of the upper cylinder.
  • a cam member is mounted on the upper cylinder for acting only on the transferred needles corresponding to the system of the upper cylinder.
  • transfer cam members for return guiding all transferred needles to the lower cylinder where a loop sinking mechanism for all needles of the machine is arranged; the latter mechanism pertains to the corresponding system of the lower cylinder.
  • a further feature of this invention consists in having the sliders of the transferred needles, after the disengagement of the needles, guided in a projected position through a guide groove of a transfer cam member, which extends across the loop-sinking cam of the system provided with the Jacquard-apparatus until the following system of the lower cylinder.
  • FIG. 1 is a schematic illustration of the sliders of the lower and upper cylinder in their positions with respect to each other and with respect to the knitting needles and also for the purpose of clarifying the transfer of the needles from the lower to the upper cylinder and viceversa;
  • FIG. 2 is a primarily schematic plan view of the cam members of both cylinders for two adjacent knitting systerns.
  • FIG. 1 the sliders 2 and 3 which are operatively connected to a double-cylinder knitting machine (not illustrated) the construction of which is known and belongs to the prior art.
  • the double-ended latch needle 1 mounted on the slider 2 which is guided by the lower cylinder (not illustrated) of the double-cylinder knitting machine and the slider 3 which is guided by the upper cylinder (not illustrated) of the double-cylinder knitting machine.
  • Both sliders 2 and 3 have respectively in their middle region a projecting butt 4 and at their rear ends a butt 5.
  • the upper and lower sliders 2 and 3 are constructed and shaped so that their interior faces are slightly angled up to a pivot line 6 which is situated close to the butt 4.
  • sliders 2 and 3 Due to this special shape of the sliders 2 and 3, they can be pivoted into the tricks of the needle cylinder of the respective slider so that the forward end of the slider which engages the needle head 1a or 1b can be respectively disengaged therefrom.
  • Both sliders 2 and 3 are illustrated in FIG. 1 in the engaged position, whereby the slider 2 of the lower cyl inder is shown as actually engaging the needle head 1:: of the double-ended latch needle 1, whereas the slider 3 of the upper cylinder is shown as not engaging a needle.
  • the forward ends of the upper and lower sliders are provided with coupling grooves 7 for engaging respectively with little play the needle head 1a and 1b.
  • the sliders are secured in each cam member by means of suitable slider cover members, so that a shifting of the needles out of the coupling grooves 7 is prevented.
  • the silder 2. with the double-ended latch needle 1 is guided upwardly until the needle 1b of the needle 1 is guided behind the forward end 3a of the slider 3.
  • the upper tongue of the double-ended latch needle 1 is thereby opened by the pointed end 3a of the slider 3.
  • the slider 2 is slid upwardly until the needle head automatically engages the coupling groove 7 of the slider.
  • the lower end of the silder 2 is pushed into a trick in the lower cylinder by means of a cover member (not illustrated) via the lower guide leg 5.
  • the slider 2 is thereby pivoted about the pivot point 6 and the upper end 2a moves in a clockwise sense thereby disengaging its coupling groove 7 from the needle head 1a. Subsequently thereto, due to a forward movement of the slider 3, the needle is guided into a catch-thread-position in the upper cylinder.
  • a Jacquard apparatus or selecting means is mounted in the knitting machine of this invention and serves to select those needles which are to be transferredrespectively not transferred-from the lower to the upper cylinder. Jacquard-apparatuses are known in the art. A detailed description of their mode of operation has therefore been omitted.
  • a selection station slit at which area the Jacquard-apparatus acts in a predetermined manner on the sliders of the lower cylinder is illus trated in FIG. 2 by broken lines and is designated by the numeral 11. This selection station slit 11 is constructed, arranged and operated so that the selected plate bar is not acted on by the subsequently arranged cam member 12.
  • the sliders 2 of the lower cylinder which travel in the direction of the arrow 13, reach with their butts 4 (FIG. 1), the collection guide groove 14 of a first cam system for the lower cylinder of the machine.
  • the sliders which had not been selected by means of the Jacquard-apparatus of the machine are not acted on by the cam member 12 and, consequently, remain in the lower guide groove 15, whereas the other selected sliders, the needles of which are to be transferred into the upper cylinder, are guided upwardly until they reach the horizontally extending guide groove 16a.
  • the sliders 3 of the upper cylinder enter with their butts 4 (FIG. 1) into the guide groove 17 of the cam system of the upper cylinder of the knitting machine which is only schematically illustrated in FIG. 2. It will be noted that no Jacquard-apparatus operatively cooperates with the upper cylinder of the knitting machine.
  • the silders 3 positioned in the guide groove portion 17a can then engage the needles of those sliders 2 which are oppositely positioned in the giude groove portion 16a. Subsequently thereto, the transferred sliders are guided upwardly by the guide groove portion 17b.
  • the sliders 2, which carrry the non-transferred needles, are guided along the lower cams and are moved in the guide groove portion 15a to the knitting position and are then positioned in the guide groove 15c of the cam member 19 in the loop forming position.
  • the cam member '18 of the upper cams and the cam member 19 of the lower cams are adjusted with respect to each other.
  • the needles of both cylinders are, in the region of the cam members 18 and 19, serviced by a common thread guide member 20.
  • the preselected sliders 2 of the lower cams instead of being retracted into the lower guide groove 15, are maintained in their projected position in the following cam system while being guided along the guide groove portions 16b, 16c and guide groove portion 16d of the adjacent cam system until they are re-engaged with the transferred back needles in the next guide groove portion 16e of the lower cam system.
  • the pro-selected sliders 2 are retracted into the knitting position 21, where they join again the non-selected, elevated sliders 2, which remained in the lower cam side, and which reach the knitting position 21 via the guide groove portions 15d and 15e. All of the sliders 2 of the lower cylinder, all of which now are coupled with needles, are then moved from the knitting position 21 to the loop-forming position 21a where the selecting of these needles which are to be transferred and those needles which are not to be transferred is effectuated by the next following selecting means or J acquard-apparatus 11.
  • Circular knitting machines of the type discussed herein and which have been improved and modified by this invention are disclosed and illustrated in detail in the German text book Technologie der Rundstrickerei by Albert Diebler, published by Konradin-Verlag, 1948 Edition, Stuttgart, Germany.
  • a double-cylinder circular knitting machine for producing a patterned links-links knitted fabric, the combination of upper and lower cylinder means, first and second pluralities of cam systems respectively mounted on said upper and lower cylinders, first and second pluralities of sliders respectively slidably guided by said first and second pluralities of cam systems of said upper and lower cylinder means, a plurality of knitting needles removably mounted in preselected sliders of said first and second pluralities of sliders, selecting means, arranged at each second one of said second plurality of cam systems of said lower cylinder, for selecting a group of said second plurality of sliders to divide the latter into a selected group and a non-selected group of sliders, each pair of successive cam systems of said second plurality of cam systems coacting with the selected group of sliders of said second plurality of sliders for continuously guiding them through each pair of successive cam systems of said second plurality of cam systems before returning the selected group to the non-selected group of the sliders of said second plurality of sliders at every second one of said
  • said selecting means is adapted to selectively guide predetermined sliders of said second plurality of sliders into said second cam means, said first plurality of sliders being guided by said first cam means so as to pick up the knitting needles carried by said selected group of sliders of said second plurality of sliders and said first cam means thereafter guiding said first plurality of sliders and the knitting needles having been transferred thereon to said first knitting position cam portion and said first cam means thereafter guiding said first plurality of sliders so as to have said knitting needles retransferred to said selected group of sliders of said second plurality of sliders which are guided in said second cam means
  • said second cam means is adapted to guide said selected group of sliders of said second plurality of sliders after the knitting needles have been transferred therefrom in a projected state relative to said lower cylinder means until said knitting needles have been retransferred thereon from said first plurality of sliders, whereafter

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US574735A 1965-08-26 1966-08-24 Multiple system double-cylinder circular knitting machine Expired - Lifetime US3466897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM0066453 1965-08-26

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US3466897A true US3466897A (en) 1969-09-16

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US574735A Expired - Lifetime US3466897A (en) 1965-08-26 1966-08-24 Multiple system double-cylinder circular knitting machine

Country Status (5)

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US (1) US3466897A (fr)
DE (1) DE1585222B1 (fr)
ES (1) ES328288A1 (fr)
FR (1) FR1487558A (fr)
GB (1) GB1153434A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1064557B (it) * 1976-12-01 1985-02-18 Lonati Cost Mecc Procedimento e macchina circolare per maglieria a doppio cilindro per la fabbricazione di tessuti a maglia con disegno,particolarmente di calze con distaccatura automatica di una calza dall'altra
IT1163577B (it) * 1983-06-22 1987-04-08 Lonati Spa Dispositivo per impedire la presa del filo da parte delle platine in una macchina circolare per maglieria a doppio cilindro

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024631A (en) * 1959-09-30 1962-03-13 Wildman Jacquard Co Method and machine for knitting patterned fabrics
US3046760A (en) * 1955-06-27 1962-07-31 Bentley Eng Co Ltd Circular knitting machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE830376C (de) * 1944-10-12 1952-02-04 Scott & Williams Inc Strickmaschine
US2717509A (en) * 1952-03-29 1955-09-13 Scott & Williams Inc Knitting machine
US2979927A (en) * 1956-10-02 1961-04-18 Scott & Williams Inc Knitting machine
FR1399529A (fr) * 1964-06-26 1965-05-14 Mayer & Cie Fa Métier à tricoter circulaire à double cylindre et procédé de fabrication en continu de tricot à maille retournée

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046760A (en) * 1955-06-27 1962-07-31 Bentley Eng Co Ltd Circular knitting machine
US3024631A (en) * 1959-09-30 1962-03-13 Wildman Jacquard Co Method and machine for knitting patterned fabrics

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Publication number Publication date
GB1153434A (en) 1969-05-29
ES328288A1 (es) 1967-04-01
DE1585222B1 (de) 1970-09-03
FR1487558A (fr) 1967-07-07

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