US3500662A - Pattern controlling selector arrangement - Google Patents

Pattern controlling selector arrangement Download PDF

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Publication number
US3500662A
US3500662A US616228A US3500662DA US3500662A US 3500662 A US3500662 A US 3500662A US 616228 A US616228 A US 616228A US 3500662D A US3500662D A US 3500662DA US 3500662 A US3500662 A US 3500662A
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United States
Prior art keywords
needle
elements
control elements
selector
cam
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Expired - Lifetime
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US616228A
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English (en)
Inventor
Erich Ribler
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Franz Morat GmbH
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Franz Morat GmbH
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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
    • D04B15/78—Electrical devices

Definitions

  • the jacks are pivotally mounted and are angularly displaced by resilient control elements selectively operated by the electromagnetic selector.
  • control elements and correlated jacks and needles are arranged in a circumferentially extending row.
  • control elements must be closely spaced from each other and consequently have to be constructed as thin resilient wires which do not always accomplish the desired control function with the accuracy required for the knitting of a perfect pattern.
  • Another object of the invention is to provide more circumferential space for each control element so that the use of thicker and stronger control elements is possible.
  • Another object of the invention is to stagger adjacent control elements.
  • one embodiment of the invention is applied to a circular knitting machine and comprises carrier means, for example the needle cylinder or dial of the knitting machine; a set of needle iniluencing elements mounted on the carrier means; a number of selector means located at a selecting station spaced from each other the same distance as the selector means and and Vselectively actuated in accordance with a program representing a knitting pattern; and the same number of circumferential rows of control elements spaced from each other the same distance as the selector means and respectively passing the selector means during rotation of the carrier means.
  • control elements are respectively aligned with the needle influencing elements and are selectively actuated by the selector mns to cause movement of the respective correlated needle influencing elements.
  • the displaced needle inuencing elements operate the needles.
  • control elements are disposed in the circumferential rows so that adjacent control elements are staggered in a direction transverse to the circumferential direction of the carrier means.
  • control elements mounted on a needle cylinder are arranged in a number of circumferential circular rows which are axially spaced, while the control elements which are mounted on the dial are arranged in a number of circular rows spaced in radial direction.
  • two circular rows of control elements cooperate with one circular row of needle iniluencing elements and are respectively selected -by two electromagnetic selector means which are program-controlled to be energized or deenergized during passage of control elements in accordance with a knitting pattern.
  • control elements a-re used for locking spring biased needle inuencing elements
  • the use of two or more electromagnetic selector means instead of one, permits the use of smaller electromagnetic selector means and the magnetizable iron cores can be dimensioned in view of the greater available space. Due to the provision of several rows of control elements, the time period available for the selection by each electromagnetic selector means is lengthened, as compared with prior constructions, and is greater than the time of energization required for the selection. The dimensioning of all parts in circumferential direction is facilitated, which is particularly advantageous if the pitch of the control elements and needle influencing elements is small.
  • FIG. 1 comprises a plurality of fragmentary axial sche.- matic sectional views FIG. 1A to FIG. 1E illustrating the 3 :lector arrangement of the invention and being respecvely taken in the regions A, B, C, D and E in FIG. 2; 1d
  • FIG.v 2 is a yfragmentary developed view taken in the lrection of the arrow 2 in FIG. 1A.
  • FIG. 3 is a fragmentary schematic front view illustratlg the selector arrangement according to a modied emadiment.
  • FIG. 4 is a fragmentary axial sectional view taken on ne IV-IV in FIG. 3.
  • FIGS. l and 2 which ilrstrate an arrangement according to theinvention as aplied to a circular knitting machine constructed in acardance with my U.S. Patent 3,292,393, the carrier leans for needle influencing elements 1i forms part of a eedle cylinder 3 which has axially extending peripheral- I spaced grooves 3a' in which cylinder needles 2 are lounted for axial movement.
  • Grooves 3a are formed etween thin plates 3a set into the body of the needle ylinder.
  • a cam cylinder 230 carries inner stationary ams 130 and 122 cooperating with butts 2 of needles 2 nd located at a higher level, and cams 122 and 120 coperating with butts 1i of needle influencing elements or tcks 1i and located at a lower level.
  • FIG. 1A shows one element 1i in an inoperave position urged by a biasing spring 111 to move toyard the footend 2" of the correlated needle 2 whose utt 2' rests on cam 130, as also shown in FIG. 2.
  • Each eedle influencing element 1i cooperates with a control lement 109.
  • Two circumferential rows of control elenents 109 are provided, the upper and lower rows re- Dectively vconsisting of control elements 6o and 6u.
  • Conrol elements 6u are shown in FIG. l substantially covred by control elements 6o.
  • Circumferentially extending iolding means 131 are schematically shown and include n upper holding means 1310 and a lower holding means 31o and a lower holding means 13114 for respectively tolding the lower ends of the control elements 60 and 6u.
  • Each control element 109 has a hook portion 109b, the look portions of the upper control elements 6o cooperatng with slanted cutouts lo of the respective aligned alterlate needle inuencing elements 1i, and the hook portions f the lower control elements 6u cooperating with lower vutouts liu of thel respective correlated needle influencing lements.
  • FIGS. 1A to 1E show
  • Control elementsv 6u lan assume corresponding positions while cooperating Vith the alternate series of elements 1i, having cutouts iu. In this locked position, the upper end of element 1i s spaced from the foot 2" of needle 2 whose butt 2 rides n cam 130.
  • Region B of FIG. 2, and FIG. 1B of FIG. 1 show a electing station where two electromagnetic selector neans 8o 'and 8u are provided for cooperation with the ontrol elements 60 and 6u, respectively.
  • Selector means lo and 8u are only schematically shown in FIGS. 1 and l, and are illustrated in greater detail in FIG. 4 to have vindings 8w and pole shoes 8p.
  • Electromagnetic selector neans 8o and 8u are alternately used for making seleclons 'of control elements.
  • electromagnetic selector neans 8o When electromagnetic selector neans 8o is energized in accordance with a program on a rogram tape, for example, it attracts the control element 6o passing by, and when electromagnetic selector meansl 8o is not energized, the locking portion 109b of the respective control element is permitted to enter cutout lio of the respective needle influencing elements 1i and to lock the same in position shown in FIG. 1B, preventing upward movement of the needle influencing element by springlll.
  • selector means 8u with control elements 6u in accordance with a program, and since control elements 6o and 6u alternately pass the selecting station, selector means 8o and 8u are alternately controlled in accordance with the program.
  • Several selecting stations may be provided around the needle cylinder.
  • spring 111 has moved a selected needle influencing element 1i, which is not locked, to a higher position in which its upper end abuts the foot 2 of a needle 2.
  • cam 120 has moved element 1i to an even higher operative position while the upper end of,Y the completely expanded spring 111 cannot follow element 1i, and since element 1i engages needle 2, the same is shifted to the knit position, while its butt 2' engages the lower face of stitch cam 121 which, as best seen in FIG. 2, lowers the needle until the same slides again on cam 130 in a lower cast off position.
  • a return cam portion 122a of cam 122 engages projection 1i and moves element 1i downward to an inoperative position, and since cam 122a merges into cam 122 which extends around the circumference of the cam cylinder, all elements 1i will arrive in the region A of FIG. 2 in the position shown in FIG. la.
  • Cam 122 extends around the inner surface of the cam cylinder in a plane perpendicular to the axis of the needle cylinder 3, but in the region of the selecting station 115, cam 122 has an upwardly slanted cam portion 122', followed by a gap 132 between cam portion 122' and a raising cam 120 which has a rising portion between points C and D in FIG. 2. Cam 120 terminates after point D and is followed by the return cam 122a at point E.
  • Cam 130 extends also in a planeperpendicular to the axis of the needle cylinder to point C and has between points C and D a rising cam portion 130a which is designed to raise a needle whose butt 2 slides thereon to the tuck position. Needles passing over the end of cam portion 130a will be engaged iby the lower face of stitchcam 121 and guided to a position in whichV the butts thereof slidingly rest on the horizontal cam 130.
  • All needle influencing elements 11' arrive in the region of the selecting station at point B in the position shown in section A, and since the biasing springs 111 are tensioned in this lower inoperative position of elements 1i, projections 1i press against the lower cam face of cam 122, and all elements 1i move upward to an intermediate position while the projections 1i slide along the short upwardly slanting cam portion 122.
  • Each electromagnetic selector located on selecting station 115 includes a permanent magnet 115a which acts on all control elements 109 to hold the same in the position shown in FIG. 1A or to bend the same away from element 11' to a position slidingly abutting magnet' 115a. Thereafter, the control element moves with the needle cylinder 3 to a position located opposite electromagnetic selector means 11Sb, and the selection is now made depending on whether selector means 115b ofthe upper selector 8o or the lower selector 8u is energized, or not energized from the program control device of the machine. Assuming that selector 115b of one of the two selector means is energized, it will hold control element 109 sliding thereon, releasing the respective element 11' to move upward in gap 132. Non-selected control elements 60 or 6u snap into the respective recess 11'0 or 1in and lock the needle influencing element.
  • FIGS. 1C to 1E illustrate a selected element 1i, so that for a non-selected element 1i, the position shown in FIG. 1A follows the position shown in FIG. 1B.
  • the needle In the region D of FIG. 2, the needle is in the knit position and is lowered by stitch cam 121 until butt -2' rests on cam portion 130. Locking portion 109b momentarily snaps into cutout 11'0 or liu during the downward movement of the-respective selected element 11', but is pushed out again bythe slanted shoulders of the cutout to assume the position shown in FIG. 1A.
  • control element 109 is held by permanent magnet 115C of the upper electromagnetic selector means 8o or lower electromagnetic selector means 8u, whereupon control element 109 passes beyond the permanent magnets 115e ⁇ and drops with its locking portion 109b onto the edge of the selected element 1i, as shown in FIG. l0.
  • control elements 209 comprise a circular row of upper control elements 6o and a circular row of lower control elements 6u staggered in axial direction having hook portions 209b.
  • the control elements have projections 6o and 6u cooperating with short circumferential cams 20o and 20u rising in circumferential and radial directions which guide selected control elements in radial direction toward the selector magnets, and away from the cutouts 11'0 and 1in in the needle influencing elements 1i. Control elements which are not attracted snap back at the end of cam 20o and 20u.
  • the U-shaped holding means 70 and 7u are shown to be mounted in circular dovetail recesses 3o and 3u of the needle cylinder 3 secured by wedge members 7o' and 7u', respectively which spread the legs of holding means 7o and 7u.
  • the holding means 7o and 7u are made of flat plates, as best seen in FIG. 3 and carry wire parts 6 of the control elements.
  • Each holding means 70 and 7u has two legs 50, 51 connected by a curved yoke 52, and having abutment portions 50a, 51a and dovetail portions 50b and 51b matching the outline of the circular dovetail recesses 3o and 3u which surround the needle cylinder.
  • a portion 50c of leg 50 has a tubular part in which a straight wire 6 is mounted.
  • control elements 209 (6o or 6u) are to be mounted on the needle cylinder
  • legs S0 and 51 are pressed together so that dovetail portions 50b, 51b can be inserted into circumferentially extending dovetail recess 3o or 3u.
  • the dovetails resiliently hold the respective control elements.
  • wedge portion 60 of a wedge member 7o or 7u is inserted between legs 50, 51 and rigidly blocks inward movement of the same.
  • a handle portion 61 is laterally staggered in relation to wedge portion 60 so that handle portion 61 is located laterally of yoke 52, as best seen in FIG. 3.
  • the sides of holding means 7o and 7u may labut divider plates 3a not shown in FIG.
  • Pattern controlling selector arrangement for a circular knitting machine comprising, in combination, carr1er means mounted for rotation about an axis; a set of needle inuencing elements mounted on said carrier means for rotation therewith past at least one selectmg station and for movement thereon between an inoperatlve position and an operative position for displacing a correlated needle; a plurality of electromagnetic selector means located at said selecting station spaced from each other a predetermined distance in a direction transverse to the circumferential direction of said carrier means, said selector means being successively and selectively actuated in accordance with a program representlng a knitting pattern; and a plurality of circumferential rows of control elements, each control element including a resilient part and an anchoring part secured to said resilient part and being wider in circumferential direction than said resilient part, said anchoring parts forming a lurality of circumferential rows respectively correlated vith said selector means, said rows being spaced from each )ther said distance in said transverse direction, and respecively passing
  • each control element is a resilient wire
  • said anchoring part is wider in circumfer- :ntial direction than said wire part and has a hook portion cooperating with a correlated needle influencing means.
  • said carrier is a needle cylinder rotatable about an axis and having axially extending peripheral channels in which said needle inuencing elements are mounted for axial movement; and wherein said transverse direction is the axial direction of said needle cylinder so that said electromagnetic selector means and said rows of anchoring parts are spaced in said axial direction.
  • said carrier is a needle cylinder having axially extending channels in which said needle inuencing elements are mounted for axial movement; and wherein said control elements resiliently tend to assume a normal position, and ⁇ are actuated by said selector means to move to an actuated position causing movement of said needle inuencing means to said operative position.
  • An arrangement as claimed in claim 5, comprising biasing means biasing said needle inliuencing means to move to said operative position; wherein said control means in said normal position lock said needle inlluencing means to prevent movement of the same to said operative position, and release said'needle influencing means in said actuated position; and wherein said electromagnetic selector means attract, when energized, said anchoring parts of said control elements of said rows, respectively, to move the same to said actuated position.
  • Pattern controlling selector arrangement for a circular knitting machine comprising, in combination, carrier means mounted for rotation about an axis; a set of needle influencing velements mounted on said carrier means for 'rotation therewith past at least one selecting station and for movement thereon between an inoperative position and an operative position for displacing a correlated needle; a plurality of selector means located at said selecting station spaced from each other 'a predetermined distance in a direction transverse to the circumferential direction of said carrier means, said selector means being successively and selectively actuated in accordance with a program representing a knitting pattern; a plurality of circumferential rows of control elements respectively correlated with said selector means, said rows being spaced from each other said distance in said transverse direction, and respectively passing said selector means during rotation of said carrier means, said control elements being respectively aligned with said needle influencing elements and being selectively actuated by said selector means to cause movement of the respective correlated needle inliuencing element to said operative position, the number of all

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US616228A 1966-02-16 1967-02-15 Pattern controlling selector arrangement Expired - Lifetime US3500662A (en)

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DEM0068419 1966-02-16

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US (1) US3500662A (fi)
AT (1) AT296486B (fi)
BE (1) BE693806A (fi)
BR (1) BR6786644D0 (fi)
CH (1) CH454339A (fi)
DE (1) DE1585228A1 (fi)
ES (1) ES337496A1 (fi)
FR (1) FR1511416A (fi)
GB (1) GB1165955A (fi)
IL (1) IL27413A (fi)
NL (1) NL6702241A (fi)
SE (1) SE328662B (fi)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653229A (en) * 1968-09-07 1972-04-04 Mayer & Cie Maschinenfabrik Pattern installation for circular knitting machines
US3742732A (en) * 1969-11-24 1973-07-03 Mayer & Cie Maschinenfabrik Jacquard pattern control arrangement for circular knitting machines
US3877255A (en) * 1972-03-25 1975-04-15 Semitex Ag Needle-control mechanism for circular knitting machine
US3919863A (en) * 1973-05-08 1975-11-18 Precision Fukuhara Works Ltd Electronic needle selecting means for circular knitting machines
US3971233A (en) * 1973-11-22 1976-07-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Circular knitting machine with pattern producing devices
US4054042A (en) * 1975-01-31 1977-10-18 Battelle Memorial Institute Apparatus for accelerating a knitting needle during its stitch drawing stroke
CN108532112A (zh) * 2018-06-13 2018-09-14 福建泉州凹凸精密机械有限公司 一种具有改进提花片复位机构的针织圆机及针筒

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275464B (de) * 1962-08-09 1968-08-14 Morgan Construction Comp Vorrichtung zum Sammeln von Drahtschleifen und zum Foerdern von den aus den Drahtschleifen hergestellten Drahtbunden
DE3689487T2 (de) * 1985-06-25 1994-05-19 Mitsubishi Heavy Ind Ltd Horizontale Streckmaschine.
ES2082920T3 (es) * 1990-10-05 1996-04-01 Matec Srl Dispositivo de seleccion de agujas en una maquina tricotosa circular con empujadores elasticos.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536946A (en) * 1922-12-13 1925-05-05 Charles J Sutphen Tucking means for knitting machines
GB272307A (en) * 1926-03-15 1927-06-15 John Henry Milward Hobley Improvements in or relating to patterning means for circular knitting machines
US2081637A (en) * 1936-07-29 1937-05-25 Jacquard Knitting Machine Co Inc Pattern mechanism
US3365916A (en) * 1965-03-02 1968-01-30 Morat Kg Franz Selector magnetic arrangement for knitting machines
US3365917A (en) * 1964-03-28 1968-01-30 Morat Gmbh Franz Needle control apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536946A (en) * 1922-12-13 1925-05-05 Charles J Sutphen Tucking means for knitting machines
GB272307A (en) * 1926-03-15 1927-06-15 John Henry Milward Hobley Improvements in or relating to patterning means for circular knitting machines
US2081637A (en) * 1936-07-29 1937-05-25 Jacquard Knitting Machine Co Inc Pattern mechanism
US3365917A (en) * 1964-03-28 1968-01-30 Morat Gmbh Franz Needle control apparatus
US3365916A (en) * 1965-03-02 1968-01-30 Morat Kg Franz Selector magnetic arrangement for knitting machines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653229A (en) * 1968-09-07 1972-04-04 Mayer & Cie Maschinenfabrik Pattern installation for circular knitting machines
US3742732A (en) * 1969-11-24 1973-07-03 Mayer & Cie Maschinenfabrik Jacquard pattern control arrangement for circular knitting machines
US3877255A (en) * 1972-03-25 1975-04-15 Semitex Ag Needle-control mechanism for circular knitting machine
US3919863A (en) * 1973-05-08 1975-11-18 Precision Fukuhara Works Ltd Electronic needle selecting means for circular knitting machines
US3971233A (en) * 1973-11-22 1976-07-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Circular knitting machine with pattern producing devices
US4054042A (en) * 1975-01-31 1977-10-18 Battelle Memorial Institute Apparatus for accelerating a knitting needle during its stitch drawing stroke
CN108532112A (zh) * 2018-06-13 2018-09-14 福建泉州凹凸精密机械有限公司 一种具有改进提花片复位机构的针织圆机及针筒
CN108532112B (zh) * 2018-06-13 2024-04-12 福建泉州凹凸纺织科技有限公司 一种具有改进提花片复位机构的针织圆机及针筒

Also Published As

Publication number Publication date
DE1585228A1 (de) 1970-08-06
BR6786644D0 (pt) 1973-06-14
AT296486B (de) 1972-02-10
BE693806A (fi) 1967-08-08
ES337496A1 (es) 1968-03-01
IL27413A (en) 1970-06-17
SE328662B (fi) 1970-09-21
CH454339A (de) 1968-04-15
FR1511416A (fr) 1968-01-26
GB1165955A (en) 1969-10-01
NL6702241A (fi) 1967-08-17

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