US3667253A - Needle selector for circular knitting machines - Google Patents

Needle selector for circular knitting machines Download PDF

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Publication number
US3667253A
US3667253A US17656A US3667253DA US3667253A US 3667253 A US3667253 A US 3667253A US 17656 A US17656 A US 17656A US 3667253D A US3667253D A US 3667253DA US 3667253 A US3667253 A US 3667253A
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Prior art keywords
bearer
needles
accessories
elements
pattern
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Expired - Lifetime
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US17656A
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English (en)
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Norbert Paul Bourgeois
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Individual
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Individual
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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
    • D04B15/74—Pattern drums

Definitions

  • the invention relates to a selector device for needles or needle accessories of a circular knitting machine adapted to select the needles or accessories by means of a removable rotary put- [58] Field of Search ..66/l4, 25, 50 R, 50 tem drum whose periphery may be equipped with removable projecting elements arranged according to a predetermined References Cited knitting pattern and adapted to operate on the needles or accessorles through an assembly of linking elements arranged in UNITED STATES PATENTS a Stepped P 2,040,946 5/1936 Marshall et al ..66/50 B 9 Claims, 4 Drawing Figures PATENTED N 61912 3.667.253
  • This invention relates to a selector device for needles or needle accessories of circular knitting machines.
  • selection devices for the activation or deactivation of the needles or other knitting instruments of circular knitting machines particularly Jacquard" machines, it is known to employ selection devices referred to as multistage selectors, and comprising one or more pattern or design drums the periphery of which is faced with removable projecting control elements such as pegs or insertable tooth pattern jacks carried by the drum in varying numbers and pattern in accordance with a predetermined selection rule.
  • these drums progress in controlled intermittent rotation, their functional generatrixes being immobilized temporarily in alignment with superposed linking elements such as selector levers arranged in batteries, the projecting elements acting on levers at corresponding levels in such manner as to influence, through the levers, the needles or instruments to be selected.
  • each device namely the pattern drum, battery of selector levers, actuating mechanisms, etc.
  • the majority of the elements constituting each device namely the pattern drum, battery of selector levers, actuating mechanisms, etc., is normally assembled on a common bearer with a principal platform of the machine carrying control elements, such as cams and co-ordinated mechanisms which control the knitting operation.
  • the present invention provides a selector device for needles or needle accessories of a circular knitting machine adapted to select the needles or accessories by means of a removable rotary pattern drum whose periphery may be equipped with removable projecting elements arranged according to a predetermined knitting pattern and adapted to operate on the needles or accessories through an assembly of linking elements arranged in a stepped pattern, wherein mounting means for the drum is displaceable between an active position in which the projecting elements are adapted to co-operate with the stepped linking elements to act on the needles or accessories to be selected, and an inactive position in which the device is removed from the needles or accessories, the assembly of linking elements co-operating with fixed abutment means during displacement of the mounting means from the active to the inactive position, and abutment means being adapted to remove the linking elements from contact with the projecting elements to enable a pattern drum to be removed from the mounting means.
  • FIG. 1 is a partial section through a conventional circular Jacquard knitting machine comprising rotary needle-carrying beds, and showing a selection device according to the invention in its active position;
  • FIG. 2 is a view corresponding to FIG. 1, with the selection device being shown in its inactive position, away from the needles;
  • FIG. 3 is a partial plan view of the machine showing the selector device in its inactive position and
  • FIG. 4 is a fractional end view of the machine showing the I selector device.
  • a cylinder 1 of the circular knitting machine is rotatably carried by an annular bearer 2 together with a driving ring (not illustrated) and the cylinder has on its periphery grooves 3 in which are slidably mounted independent needles 4 each associated with a pivoting needle selector jacks or lifter 5.
  • the needle jacks or lifters are provided in a conventional manner with selection catches 6a to 6: arranged in stepped pattern as illustrated in FIG. 4, and each needle jack is further provided with a an operative butt 7 which, by means of the selector device yet to be described, may either be drawn aside or caused to co-operate with a lifting cam 8 secured to a lower annular cam-box 9, which is itself carried by a stationary principal platform 10.
  • a second annular cam-box 11 carrying needle control cams l2, 13, is attached to the lower cam-box by means of spacing posts 14 and 15 (FIG. 3).
  • the selector device comprises a pattern drum, linking elements, actuating mechanism, etc. assembled on a common supporting tie or bearer 16 adapted to slide between two lateral guides l7, l8 fastened to the lower cam carrier by means of screws 19, and each comprising a stepped part 20 for insertion into grooves 21 of the sliding plate 16, in such manner that the latter can only move in the radial direction.
  • the base of the socket 22 is formed as a ratchet wheel 26, intermittent rotation of which is controlled by a pawl 27 carried by a slider 28, displacement of which is controlled by a cam 29 carried by the rotary bearer 2, and acted upon by a return spring 30.
  • a removable cylindrical sleeve 31 is fitted over the outside of the socket 22 to which it is rotationally locked by means of a key 122; on the periphery, of sleeve 22 are provided a series of axial grooves forming the functional generatrixes of the drum, and intended to receive removable selection elements 32 equipped with prefragmentable projecting teeth 32a to 32i, distributed in varying number and pattern according to the requirements of a knitting pattern.
  • the selection elements 32 are provided with flanges 33 which ensure their longitudinal positioning, the relative heights of the socket and sleeve, being such that the flanges bear on the upper surface of the socket 22.
  • the selection elements are held laterally at their lower and upper extremities, respectively, by engagement behind a retention collar 34, and by a removable cover 35 covering the upper portion of the removable sleeve 31.
  • Each linking element of the battery has an active control part 38 intended to exert a selective influence on the stepped butts of the needle jacks, and a sensor projection 39 permanently kept in contact with the selection elements 32 under the action of a return spring 40 when in the active position.
  • each linking element in the area of its active part comprises a notch whereof one of the edges 41 penetrates into the corresponding groove 42 of a common guide 43.
  • spacing rings or washers 44 ensure a correct stepped distribution of the different linking levers or elements.
  • the bolt 45 further includes a transverse notch 54 intended to receive the step or shoulder 51, to lock the selector device as a whole in an inactive retracted position, separated from the needles, as shown in FIG. 2.
  • the operator may then free the removable sleeve 31 from the assembly of its actuating mechanisms and may proceed either with permutation or insertion of new elements, or with replacement of sleeve 31 with another sleeve equipped with elements arranged according to a different selection pattern.
  • Thedevice is shown in its inactive position in FIG. 2, the removable sleeve carrying selection elements being illustrated dash-dotted, separated from its actuating mechanism.
  • the device described and illustrated relates more specifically to a circular knitting machine having one or more rotary needle-carrying needle beds, the invention is equally applicable to circular machines having stationary needle beds.
  • the selector device of the invention can ensure the selection of the needles or accessories of one or the other of the two needle beds, or of both at the same time.
  • a device comprising several pattern drums, intended to exert a simultaneous or consecutive action on the needles oraccessories to be selected, for example to form fabrics requiring the activation of needles at different levels, the possibility also being available to group the pattern drum or drums allocated to several consecutive knitting stations on a common sliding bearer plate.
  • a selector device for needles or needle accessories of a circular knitting machine comprising:
  • a removable rotary pattern drum having removable selection elements, disposed about its periphery, with projecting teeth arranged according to a predetermined pattern
  • said bearer being displaceable between an active position in which the projecting teeth are adapted to cooperate with the linking elements to act on the needles or accessories to be selected, and an inactive position in which the pattern drum and linking elements are removed away from the needles or accessories;
  • a device as set forth in claim 1 comprising a base plate having a slideway, said bearer including a bearer plate carried in the slideway enabling linear movement of the bearer plate between the active and inactive positions.
  • a device as set forth in claim 1 wherein said locking means may also cooperate with said abutment to secure said bearer in the inactive position.
  • a device as set forth in claim 1 comprising resilient thrust means for axially holding the pattern drum in alignment with the linking elements when the bearer is in its active position.
  • the pattern drum includes a rotary cylindrical socket surrounded by a removable cylindrical sleeve, the periphery of which is provided with a series of axial grooves to receive said removable selection elements with the said selection elements each having a radially inwardly extending flange adapted to rest against the top of the socket.
  • a selector device for needles or needle accessories of a circular knitting machine comprising:
  • a removable rotary pattern drum having removable selection elements, disposed about its periphery, with projecting teeth arranged according to a predetermined pattern
  • an assembly of linking elements arranged in a stepped pattern located intermediate the pattern drum and needles or accessories and adapted to cause operation of the needles or accessories; a bearer movable in relation to the needles or accessories for receiving the pattern drum and assembly of linking provided with a series of axial grooves to receive removable selection elements with the said selection elements each having a radially, inwardly extending flange adapted to rest against the top of the socket.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US17656A 1969-03-10 1970-03-09 Needle selector for circular knitting machines Expired - Lifetime US3667253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6906719A FR2036304A5 (it) 1969-03-10 1969-03-10

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US3667253A true US3667253A (en) 1972-06-06

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FR (1) FR2036304A5 (it)
GB (1) GB1248886A (it)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712084A (en) * 1970-12-04 1973-01-23 Fouquet Werk Frauz & Planck Jacquard pattern controller structure
US3834188A (en) * 1971-06-08 1974-09-10 J Comas Spring loaded pattern drum for ease of pattern jack insertion
US3895504A (en) * 1973-10-05 1975-07-22 Vyzk Vyvojovy Ustav Vseobe Quickly replaced pattern drum
US3908403A (en) * 1973-02-28 1975-09-30 Battelle Memorial Institute Knitting machine
US3981160A (en) * 1973-04-27 1976-09-21 Billi S.P.A. Needle selecting means
CN104499179A (zh) * 2014-12-24 2015-04-08 湖州新创丝织品有限公司 电脑提花窗帘大圆机
CN108677369A (zh) * 2018-07-30 2018-10-19 泉州佰源机械科技股份有限公司 一种针织圆型纬编机提花选针器的快速定位机构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143791U (ja) * 1984-03-02 1985-09-24 株式会社　福原精機製作所 編機における選針装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2040946A (en) * 1933-03-02 1936-05-19 Scott & Williams Inc Knitting machine
US2208698A (en) * 1936-06-29 1940-07-23 Hemphill Co Knitting machine
GB565722A (en) * 1943-01-27 1944-11-24 Mellor Bromley & Co Ltd Improved patterning mechanism for knitting machines
US3310965A (en) * 1964-04-27 1967-03-28 Singer Co Removable patterning assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2040946A (en) * 1933-03-02 1936-05-19 Scott & Williams Inc Knitting machine
US2208698A (en) * 1936-06-29 1940-07-23 Hemphill Co Knitting machine
GB565722A (en) * 1943-01-27 1944-11-24 Mellor Bromley & Co Ltd Improved patterning mechanism for knitting machines
US3310965A (en) * 1964-04-27 1967-03-28 Singer Co Removable patterning assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712084A (en) * 1970-12-04 1973-01-23 Fouquet Werk Frauz & Planck Jacquard pattern controller structure
US3834188A (en) * 1971-06-08 1974-09-10 J Comas Spring loaded pattern drum for ease of pattern jack insertion
US3908403A (en) * 1973-02-28 1975-09-30 Battelle Memorial Institute Knitting machine
US3981160A (en) * 1973-04-27 1976-09-21 Billi S.P.A. Needle selecting means
US3895504A (en) * 1973-10-05 1975-07-22 Vyzk Vyvojovy Ustav Vseobe Quickly replaced pattern drum
CN104499179A (zh) * 2014-12-24 2015-04-08 湖州新创丝织品有限公司 电脑提花窗帘大圆机
CN108677369A (zh) * 2018-07-30 2018-10-19 泉州佰源机械科技股份有限公司 一种针织圆型纬编机提花选针器的快速定位机构
CN108677369B (zh) * 2018-07-30 2024-03-01 福建佰源智能装备股份有限公司 一种针织圆型纬编机提花选针器的快速定位机构

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Publication number Publication date
DE2011226B2 (de) 1976-02-26
DE2011226A1 (de) 1971-01-07
GB1248886A (en) 1971-10-06
FR2036304A5 (it) 1970-12-24

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