US3802224A - Circular knitting machine with multiple knitting systems - Google Patents

Circular knitting machine with multiple knitting systems Download PDF

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Publication number
US3802224A
US3802224A US00149479A US14947971A US3802224A US 3802224 A US3802224 A US 3802224A US 00149479 A US00149479 A US 00149479A US 14947971 A US14947971 A US 14947971A US 3802224 A US3802224 A US 3802224A
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United States
Prior art keywords
needle
cam
jack
butt
knitting
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Expired - Lifetime
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US00149479A
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English (en)
Inventor
E Plath
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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
    • 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

  • Cl D04b 15/68 lecting structure is provided for controlling the pattern Field of Search /50 R, 50 B, 25, 36 A, jacks so as to actuate the latter to tilt the needle jacks 66/36 B, 42 between their operative and inoperative positions, and those needle jacks which are in an inoperative position
  • References Cited are automatically displaced to an operative position UNITED STATES PATENTS prior to each selection in a collecting region in axial 1,873,502 8/1932 Steinmuller 66/36 A aligflmem with a f knitting System; the acnfal 3'063269 11/1962 Losenetalw 66/5ORX lection for one knIttIng system beIng made In the 3,283,540 11/1966 Levin 66/36 A Spaee Oeeupied y the immediately Preceding knitting 3,499,300 3/1970 Zahradkam.
  • the present invention relates to multiplesystem circular knitting machines provided with a Jacquard type of pattern selection device where for each knitting system there is a pattern selecting pin drum which through swingable selecting members during the rotation of the needle cylinder brings about tilting of pattern jacks which coact with tiltable needle jacks for tilting the latter between operative and inoperative positions.
  • a pattern selecting pin drum which through swingable selecting members during the rotation of the needle cylinder brings about tilting of pattern jacks which coact with tiltable needle jacks for tilting the latter between operative and inoperative positions.
  • a further object of the present invention is to provide a circular knitting machine in which those needle jacks which are in their operative positions remain in the latter positions to return to a collecting station prior to each selection while those needle jacks which are in inoperative positions are automatically returned to their operative positions when arriving at the collecting station just prior to the next selection.
  • a further object of the present invention is to provide a selecting arrangement which enables the selections for one knitting system to be carried out in such a way that at least the collection of the needle jacks and pattern jacks at the collecting station just prior to a given selection takes place at a knitting system which immediately precedes the knitting system where the actual knitting takes place according to the selection which is made.
  • each knitting system it is an object of the present invention to limit the circumferential length of each knitting system to the angular distance required only for raising a needle to the yarn-taking position and lowering it to the loopsinking position, with the pattern-selecting structure overlapping the knitting system which immediately precedes the system where the knitting takes place.
  • each needle jack is provided with three butts, namely a raising butt, a pulldown butt, and a tilting butt, and the needle jack cams provide three distinct cam paths for these three butts of each needle jack.
  • the coaction between the tilting butt and raising butt of each needle jack is controlled by way of the pattern jack.
  • the cam path for the tilting butts of the needle jacks extends circumferentially around the common axis of the cylinders in a plane normal thereto, and at each knitting system there is in this latter cam path a spring-pressed return cam which engages the tilting butt of each needle jack which is in an inoperative position for tilting the latter back to an operative position at the collecting station just prior to a selection which is made for the next-following knitting system.
  • the needle jack cams include raising cams for coacting with the raising butts to raise the needle jacks, and each raising cam is formed in axial alignment with each return cam with an elongated cutout for receiving the raising butt of a needle jack which is tilted back to its operative position by a return cam.
  • FIG. 1 is a highly schematic fragmentary developed view of a cam cylinder where some of the knitting systems are illustrated.
  • FIGS. 2-6 are respectively schematic fragmentary longitudinal sectional elevations taken along line II-II to VI-VI of FIG. 1 in the direction of the arrows.
  • cam cylinder 23 carries a needle cam means 10 and a needle jack cam means 11. These cam means are circumferentially distributed about the common axis of the cam cylinder 23 and needle cylinder 25 so as to form the several knitting systems A, B, C, D, etc.
  • the I several components of the various knitting systems are designated by the same reference characters followed by the letters which indicate the different knitting systems.
  • Each knitting system is provided with a selecting means located at a selecting station, and for this purpose there is for each knittingsystem a pattern selecting pin roller which in a known way actuates swingable pattern-selecting members 12 of each system, these selecting members 12 forming a selecting means.
  • a selecting means located at a selecting station, and for this purpose there is for each knittingsystem a pattern selecting pin roller which in a known way actuates swingable pattern-selecting members 12 of each system, these selecting members 12 forming a selecting means.
  • the selecting means 128 for the system B overlaps in part the immediately preceding knitting system A
  • the selecting means 12C for the knitting system C overlaps in part the immediately preceding system B, and so on.
  • the needles 13 are respectively provided with needle butts 131, and the system A includes a cam 14A co-acting with the butt 131 of each needle 13 during raising of the latter to the yarn-taking position aswell as a loop-sinking cam 15A for coacting with the butt 131 of each needle 13 for returning the latter down to the loop-sinking position.
  • This needle cam means includes an additional cam 17A situated in axial alignment with the loop-sinking cam 15A.
  • the cam cylinder 23 also carries a needle jack cam means 11 which provides three cam paths for the three butts of each needle jack 18.
  • each needle jack 18 has a pull-down butt 182, a tilting butt 183, and a raising butt 181.
  • the cam means 11 includes at each knitting system a raising cam 19A, 198, etc.
  • the cam 19A is formed with an elongated circumferentially extending cutout 20A.
  • the guiding of the pull-down butt 182 is brought about by a cam 21A and a cam path 28 extends circumferentially about the common axis of the needle and cam cylinders in.
  • This cam path 28 is defined on one side by the cam 16A and on the other side by the cam 21A.
  • a spring-pressed return cam 22A, 2213, etc. which coacts with the tilting butt 183 in a manner described in greater detail below.
  • the needle cam means and the needle jack cam means are all made up of identical components at the several knitting systems.
  • each needle jack with its three butts 181-183 is apparent from FIG. 2 which illustrates the cam cylinder 23 at the region of the system A as well as the needle cylinder 24 with its lower cylinder portion 25 and the cylinder carrier ring 26.
  • the needles 13 together with the needle jacks 18 and the pattern jacks 27 are situated in a known way'in vertically extending grooves 252 which are formed on the needle cylinder 24 as well as its lower portion 25.
  • the needle jacks 18 are each formed at an edge opposed to the jack butts with a tilting point 184 situated between the pull-down butt 182 and the raising butt 181, and the several jacks and needles are situated with a light friction in the several grooves 252.
  • Each needle jack 18 coacts with a pattern jack 27 which has an upper head end 271 overlapping the front edge at the lower end region of each needle jack 18.
  • Each pattern jack 27 has a lower substantially circular end 272 engaging a flange 251 of the lower cylinder portion 25 so as to rest on this flange.
  • each pattern jack has a pattern butt 273 which at the selecting station can be engaged by a swingable selecting rod of a selecting means such as the selecting means 12A.
  • the several pattern butts 273 of adjoining pattern jacks 27 are axially displaced so that the several pattern butts of a series of pattern jacks 27 are arranged along a spiral in the manner indicated schematically in FIG. 1 at the lower needle cylinder portion 25.
  • the section of FIG. 2 is-taken at the system A at the starting region thereof close to the location of the selecting station for this particular system A. It is assumed that at the immediately preceding knitting system the pattern butts 273 of the pattern jacks 27 have not been displaced by the selecting means 12A, so that the result is that the several needle jacks 18 which coact with the pattern jacks remain in their operative positions where the raising butts 181 are in the range of action of the raising cam 19A. Thus, during rotation of the needle cylinder with respect to the stationary cam cylinder the raising butts 181 of the needle jacks 18 will engage the upper edge of the cam 19A to be raised thereby, so that the needle jacks are raised and at their upper ends engage the lower ends of the needles 13.
  • each needle jack moves along the outer surface of the cam 16A, which is to say the surface thereof which is directed toward the needle cylinder 24, so that it is not possible for the needle jack 18 to be tilted at this time inasmuch as such tilting is blocked by the right surface of the cam 16A, as viewed in FIG. 2, engaging the tilting butt 183 when the latter moves along the path indicated schematically at the knitting system A in FIG. 1.
  • the return of the needle jack 18 to the position shown in FIG. 2 takes place by way of the pull-down butt 182 which engages the lower camming edge of the cam 21A, forming a pull-down cam for the needle jack cam means of the system A.
  • FIG. 3 illustrates the situation where the selecting means 128 has been operated to act on the pattern butts 273 of the pattern jacks 27 for preventing operation of needles at the system B.
  • the displacement of the selecting means 12B to a position for coacting with the pattern butts 273 results in tilting of the pattern jacks 27 in a clockwise direction from the position of FIG. 2 into the position of FIG. 3, about their circular bottom ends 272, into the corresponding vertical grooves 252.
  • the upper head end 271 of each pattern jack 27 engages the coacting needle jack 18 at its lower end and brings about a tilting of this needle jack 18 about its tilting point 184 in a counterclockwise direction from the position of FIG. 2 into the position of FIG. 3.
  • FIG. 4 illustrated in section the return cam 22B and the spring 221 which urges it to the right, as viewed in FIG. 4.
  • each pattern jack 27 will reach the selecting station for the next-following system C.
  • the return of each needle jack 18 to its operative position by the return cam 228 has placed the pattern butt 273 into the operating range of the selecting means 12C.
  • the pattern jacks 27 are not influenced by the selecting elements of the selecting means 12C. Therefore the pattern jacks remain in the positions shown in FIG. 5, and the needle jacks 18 remain in their operating positions, so that the raising butts 181 thereof will be acted upon by the raising cam 19C which raises the needles jacks 18 which thus raise the needles 13 to the position indicated in FIG. 6.
  • the circumferential length of each knitting system has a magnitude a which is precisely equal to the circumferential length of each knitting system.
  • the selecting region required for pattern selection of the needle jacks for each knitting system includes the collecting station I) where all of the previously selected needle jacks 18 are returned by the cam 22 into their operating positions.
  • This collecting region b is defined between the circumferential distances 0 required by a pair of successive selecting means such as the selecting means 12C and 12D shown in FIG. 1.
  • a selection region is made up first of the preliminary collecting region b and then the region c where actual selection is made.
  • the collecting region or station b for each knitting system is entirely located in circumferential alignment with the immediately preceding knitting system.
  • the selecting region c where the selection actually takes place also overlaps to a large extent the immediately preceding knitting system.
  • each knitting system of the machine of the invention an operating region whose circumferential length is equal only to that required for displacing a needle out of a yarn-taking position and returning it to the loop-sinking position.
  • the collection of the various nee dle jacks in preparation for a new selection takes place at a system which immediately precedes the system where the operations are made in accordance with the selections.
  • non-selected jacks will provide for operation ofthe needles in a given knitting system while the selected jacks will prevent selected needles from operating.
  • the number of knitting systems which can be distributed about the common axis of the needle and cam cylinders of a given machine can be very sharply increased. For example, where a machine normally would have 39 knitting systems it is possible with the present invention to provide it with 64 knitting systems.
  • said needle jack cam means includes at each knitting system a needle jack raising cam for coacting with the raising butt of each needle jack to raise each needle jack which is in an operative position, and each raising cam being formed in axial alignment with the collecting station for the next-following knitting system, with an elongated cutout for receiving the raising butt of each needle jack which is tilted from its inoperative to its operative position at the collecting station.
  • each knitting system includes in the cam path of each tilting butt a return cam and a spring urging the return cam toward the tilting butt, said return cam being vertically aligned with said cutout of said raising cam of the corresponding system and engaging the tilting butt of each needle jack which is in an inoperative position for tilting the jack back to an operative position while the raising butt thereof enters into said cutout.
  • each needle jack has its raising butt and tilting butt respectively situated at opposed end regions of each needle jack and each pattern jack coacting with each needle jack at that end region thereof where said raising butt is located, and each needle jack having at an edge opposed to that where said butts thereof are located a tilting point situated between the pull-down butt and the raising butt of each needle jack.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US00149479A 1970-06-09 1971-06-03 Circular knitting machine with multiple knitting systems Expired - Lifetime US3802224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702028188 DE2028188A1 (de) 1970-06-09 1970-06-09 Vielsystemige Rundstrickmaschine mit Jacquardmustereinrichtung

Publications (1)

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US3802224A true US3802224A (en) 1974-04-09

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US (1) US3802224A (enExample)
JP (1) JPS5214784B1 (enExample)
CH (1) CH522766A (enExample)
DE (1) DE2028188A1 (enExample)
ES (1) ES392034A1 (enExample)
FR (1) FR2097827A5 (enExample)
GB (1) GB1329171A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110093711A (zh) * 2019-05-30 2019-08-06 浙江罗速设备制造有限公司 针织机械用两个双向选针器为一路的行针系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1070396B (it) * 1976-07-21 1985-03-29 Matec Spa Perfezionamento nei mezzi di comando dei selettori o jacks oscillanti nelle macchine da maglieria da calze e simili
ES8407532A1 (es) * 1983-10-10 1984-10-01 Jumberca Sa Perfeccionamientos en las disposiciones de seleccion de agujas en telares circulares de genero de punto

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873502A (en) * 1929-12-18 1932-08-23 Steinmuller Max Circular knitting machine
US3063269A (en) * 1959-08-01 1962-11-13 Sdruzeni Podniku Textilniho St Circular knitting machine having a patterning device
GB996291A (en) * 1961-09-29 1965-06-23 Alfred Planck Improvements in or relating to circular knitting machines including pattern mechanisms
US3283540A (en) * 1963-03-14 1966-11-08 Levin Nathan Needle selecting devices
US3499300A (en) * 1966-07-01 1970-03-10 Elitex Zavody Textilniho Pattern device for circular knitting machines
US3577749A (en) * 1967-07-22 1971-05-04 Bentley Mach Dev Co Circular knitting machines
US3616654A (en) * 1969-06-16 1971-11-02 Juan Bibolas Llinas Needle selecting mechanism for multifeed circular knitting machines
US3623341A (en) * 1968-08-16 1971-11-30 Gottlieb Eppinger Fa Needle control arrangement for a circular knitting machine
US3638456A (en) * 1968-10-24 1972-02-01 Jumberca Sa Device for circular knitting machines
US3641787A (en) * 1968-10-23 1972-02-15 Stibbe Machinery Ltd Patterning devices for circular knitting machines

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873502A (en) * 1929-12-18 1932-08-23 Steinmuller Max Circular knitting machine
US3063269A (en) * 1959-08-01 1962-11-13 Sdruzeni Podniku Textilniho St Circular knitting machine having a patterning device
GB996291A (en) * 1961-09-29 1965-06-23 Alfred Planck Improvements in or relating to circular knitting machines including pattern mechanisms
US3283540A (en) * 1963-03-14 1966-11-08 Levin Nathan Needle selecting devices
US3499300A (en) * 1966-07-01 1970-03-10 Elitex Zavody Textilniho Pattern device for circular knitting machines
US3577749A (en) * 1967-07-22 1971-05-04 Bentley Mach Dev Co Circular knitting machines
US3623341A (en) * 1968-08-16 1971-11-30 Gottlieb Eppinger Fa Needle control arrangement for a circular knitting machine
US3641787A (en) * 1968-10-23 1972-02-15 Stibbe Machinery Ltd Patterning devices for circular knitting machines
US3638456A (en) * 1968-10-24 1972-02-01 Jumberca Sa Device for circular knitting machines
US3616654A (en) * 1969-06-16 1971-11-02 Juan Bibolas Llinas Needle selecting mechanism for multifeed circular knitting machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110093711A (zh) * 2019-05-30 2019-08-06 浙江罗速设备制造有限公司 针织机械用两个双向选针器为一路的行针系统
CN110093711B (zh) * 2019-05-30 2024-03-19 浙江罗速设备制造有限公司 针织机械用两个双向选针器为一路的行针系统

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Publication number Publication date
DE2028188A1 (de) 1971-12-23
ES392034A1 (es) 1974-08-01
CH522766A (de) 1972-06-30
FR2097827A5 (enExample) 1972-03-03
GB1329171A (en) 1973-09-05
JPS5214784B1 (enExample) 1977-04-23

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