US3811296A - Circular knitting machine with jack removal slots - Google Patents

Circular knitting machine with jack removal slots Download PDF

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Publication number
US3811296A
US3811296A US00179789A US17978971A US3811296A US 3811296 A US3811296 A US 3811296A US 00179789 A US00179789 A US 00179789A US 17978971 A US17978971 A US 17978971A US 3811296 A US3811296 A US 3811296A
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US
United States
Prior art keywords
jacks
opening
jack
cam
needle cylinder
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.)
Expired - Lifetime
Application number
US00179789A
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English (en)
Inventor
M Bianchi
G Conti
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.)
G Billi and C SpA
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G Billi and C SpA
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 G Billi and C SpA filed Critical G Billi and C SpA
Application granted granted Critical
Publication of US3811296A publication Critical patent/US3811296A/en
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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
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • 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

  • ABSTRACT At'least one through recess extends through the cam shell surrounding the rotary needle cylinder of a circular knitting machine at a predetermined position in line with the cam track therein to allow for withdrawal of the needles jacks therethrough.
  • the upperrand lower edges of the recess are chamfered to permit inv clination of the jacks with respect to the needle zcylinder to facilitate said withdrawal operation,
  • the present invention relates to an annular shell for the aforesaid purposes, which is provided with an arrangement which is designed to make the withdrawal ofajack, simple and quick without removal of portions of said shell.
  • the annular shell according to the invention substantially includes, in an angular position arranged to allow the replacement operations of the jacks, chamfered openings through .the cam shell to allow an averting withdrawal ofthe jacks, the latter being chamfered also at least at one of the ends, to allow their inclination with respect to the associated sliding channel bottom.
  • the openings are so dimensioned'that the FIG. 3 illustrates a vertical section in another inter mediate position of the needle cylinder.
  • the annular shell surrounding the needle cylinder at least in the illustrated zone includes three cam profiles I, 3 and 5.
  • a plurality of grooves 711 surround needle cylinder 7 and accomodate both the needles 9, and respective jacks 11, and additional jacks 13, whose butts are outwardly directed and conventionally controlled by cam profiles l, 3, carried by the cam shell.
  • the portions 1 and 3 present verti- Cally elongated openings or recesses 21, 23A, 23B-extending entirely through the thickness of the cam shell at a point intersecting the cam tracks.
  • the openings are LII defined'by an upper edge and a lower edge and the distance between the upper edge and the lower edgeis at least as great as the distance between the upper edge of the uppermost jack butt and the lower end of the jack.
  • the jack ll has the upper end chamfered in llA,-
  • the jack 13 also has an upper chamfer 13A and a pivot point 138.
  • the jacks such as those denoted by 11 and l3 are passed in the zone of therecesses and of the chamfers of the shell in the positions shown in FIGS.. 2 and 3, whereby they are guided by the internal surfaces of the profiles l,- 3, 5 of the shell.
  • the cylinder is stopped with the jack to be disassembled, aligned with the recesses.
  • the jack 11 is withdrawn, sliding it upwardly, which is allowed'because the butt 11X thereof may move in the recess 21; by means of the chamfer 11A, the chamfer 31 and the recess 23A, the jack 11 may be inclined around'the pivot point B and thus withdrawn along the chamfer 33A.
  • the jack 13 may be withdrawn raising it, making it turn around the pivot point 13B and withdrawing it in the inclined arrangement, using the chamfers 33B and 35 and the recess 238.
  • the jacks therein which form a cam track for-receiving I the jack butts and operating .the jacks according to a prescribed pattern-as said cam shell rotates relative to said needle cylinder, the improvement comprising a vertically elongated opening extending entirely through I the thickness of said cam shell at a point intersecting said cam track, said opening being aligned with and providing access to the butts of said jack at the point where the jacks pass said opening, said opening being defined by an upper edge and a lower edge, the distance between said upper edge and said lower edge being at least as great as the distance between the upper edge of the uppermost jack butt and the lower end of said jack, an outwardly facing chamfer beginning at the lower edge of said opening tapering downwardly through the thickness of said cam shell and an inwardly facing chamter beginning at the upper edge of said opening tapering inwardly through the thickness of 7 said cam shell, whereby selected jacks may he tilted for removal and insertion through the vertically elong

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US00179789A 1970-09-14 1971-09-13 Circular knitting machine with jack removal slots Expired - Lifetime US3811296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1177570 1970-09-14

Publications (1)

Publication Number Publication Date
US3811296A true US3811296A (en) 1974-05-21

Family

ID=11137755

Family Applications (1)

Application Number Title Priority Date Filing Date
US00179789A Expired - Lifetime US3811296A (en) 1970-09-14 1971-09-13 Circular knitting machine with jack removal slots

Country Status (5)

Country Link
US (1) US3811296A (ref)
CS (1) CS157729B2 (ref)
ES (1) ES172333Y (ref)
FR (1) FR2107664A7 (ref)
GB (1) GB1353676A (ref)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952548A (en) * 1973-01-31 1976-04-27 Costruzioni Meccaniche Lonati Di Lonati Francesco & Figli (Ettore, Fausto, Tiberio) S.N.C. Cam ring
US4932226A (en) * 1987-08-20 1990-06-12 Lonati S.P.A. Device for locking selectors on the bottom of needle cylinder grooves in circular knitting machines
CN101812768A (zh) * 2010-04-23 2010-08-25 浙江汇力达精密机械有限公司 圆纬机编织三角走针跑道及加工方法
US20220235501A1 (en) * 2019-06-11 2022-07-28 Santoni S.P.A. A circular knitting machine and a method for moving the needles of a circular knitting machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US150965A (en) * 1874-05-19 Improvement in cylinders for knitting-ivtachines
US1000460A (en) * 1910-08-18 1911-08-15 Mishawaka Woolen Mfg Co Knitting-machine.
DE465582C (de) * 1928-09-20 Reutlinger Strickmaschinenfabr Nadelbett fuer Flachstrickmaschinen
US2032324A (en) * 1931-05-28 1936-02-25 Hemphill Co Knitting machine and method of knitting
US2800005A (en) * 1953-08-11 1957-07-23 Willy Werner Lenkeit Needle bed for knitting machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US150965A (en) * 1874-05-19 Improvement in cylinders for knitting-ivtachines
DE465582C (de) * 1928-09-20 Reutlinger Strickmaschinenfabr Nadelbett fuer Flachstrickmaschinen
US1000460A (en) * 1910-08-18 1911-08-15 Mishawaka Woolen Mfg Co Knitting-machine.
US2032324A (en) * 1931-05-28 1936-02-25 Hemphill Co Knitting machine and method of knitting
US2800005A (en) * 1953-08-11 1957-07-23 Willy Werner Lenkeit Needle bed for knitting machines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952548A (en) * 1973-01-31 1976-04-27 Costruzioni Meccaniche Lonati Di Lonati Francesco & Figli (Ettore, Fausto, Tiberio) S.N.C. Cam ring
US4932226A (en) * 1987-08-20 1990-06-12 Lonati S.P.A. Device for locking selectors on the bottom of needle cylinder grooves in circular knitting machines
CN101812768A (zh) * 2010-04-23 2010-08-25 浙江汇力达精密机械有限公司 圆纬机编织三角走针跑道及加工方法
CN101812768B (zh) * 2010-04-23 2012-05-23 浙江汇力达精密机械有限公司 圆纬机编织三角走针跑道及加工方法
US20220235501A1 (en) * 2019-06-11 2022-07-28 Santoni S.P.A. A circular knitting machine and a method for moving the needles of a circular knitting machine
US12110620B2 (en) * 2019-06-11 2024-10-08 Santoni S.P.A. Circular knitting machine and a method for moving the needles of a circular knitting machine

Also Published As

Publication number Publication date
ES172333U (es) 1972-03-16
GB1353676A (en) 1974-05-22
ES172333Y (es) 1973-01-16
FR2107664A7 (ref) 1972-05-05
CS157729B2 (ref) 1974-09-16

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