US3683644A - Control device for a textile machine - Google Patents

Control device for a textile machine Download PDF

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Publication number
US3683644A
US3683644A US17785A US3683644DA US3683644A US 3683644 A US3683644 A US 3683644A US 17785 A US17785 A US 17785A US 3683644D A US3683644D A US 3683644DA US 3683644 A US3683644 A US 3683644A
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US
United States
Prior art keywords
actuators
machine element
extending
actuator
movement
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
US17785A
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English (en)
Inventor
Bretislav Chvala
Jaroslav Janostik
Jindrich Mares
Jan Jerabek
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.)
Elitex Zavody Textilniho
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Elitex Zavody Textilniho
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Publication date
Application filed by Elitex Zavody Textilniho filed Critical Elitex Zavody Textilniho
Application granted granted Critical
Publication of US3683644A publication Critical patent/US3683644A/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
    • D04B15/66—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
    • 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
    • D04B15/82—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the needle cams used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/02—Circular knitting machines with independently-movable needles with one set of needles

Definitions

  • apparatus for the operation of such elements as the needle or jacks, comprising a movable cam member adapted to be urged into and out of operative engagement with the butts of the elements, the member cam being moved by a pneumatic activator selectively fed by a predetermined pneumatic pulse.
  • the pneumatic activator comprises a body having a diaphragm mounted therein adapted to be flexed against the member on application of the pulse. The distance of movement of the member being determined by the flexing of the diaphragm.
  • FIG. 1 is an elevational view, partially sectioned, of a needle cylinder showing the needles and jacks of a circular knitting to which the present invention is applied;
  • FIG. 2 is an enlarged view of the apparatus of the present invention
  • FIG. 3 is an enlarged view of a modified form of the present invention.
  • FIG. 4 is an enlarged sectional view taken along lines 4-4 of FIG. 2 showing additional details.
  • FIG. 1 the present invention is shown as applied to a circular knitting machine having a cylinder 1 in which a plurality of longitudinal needles grooves 2 are formed.
  • a control element such as jacks 3, each having a butt 4 extending radically outward to ride within a track 5 a of an annular cam housing 5.
  • a needle 6 is arranged in each longitudinal groove 2 above the jack 3 and is also provided with a butt 7 at its lower end engaging within a track 5b of the annular cam 5.
  • the aforementioned structure is conventional in circular knitting machines and operates in well known manner so that as the needle cylinder 1 and the cam 5 are rotated relative to each other, the jacks and needles 6 cause axial movement of the needles effecting the looping of the yarn into a knit pattern.
  • the needle butts 7 are divided into groups having differing radial length or extension so that they may be selectively engaged and operated. Separate control mechanisms such as those mentioned in the introduction hereto are employed to operate the needle butts.
  • the predetermined programing of the relative cylinder and cam rotation, and the operation of the needle butts provides the required cyclic and repetitive operation to form a knit fabric or product of predetermined design.
  • the present invention is concerned with a novel needle or jack butt control mechanism and as seen in FIG. 1 comprises a cam 8 arranged to move under pneumatic impulse radially into and out of engagement with the butt 7.
  • the cam 8 is secured at the end of a pin member 15 extending from a pneumatic actuator 9.
  • the actuator as will be described in detail later, is adapted, under the flow of pneumatic pressure to move the member 15 and the connected cam 8, axially with respect to the cylinder 1, a fixed distance along the direction indicated by the arrow S.
  • two actuators, 9 and 10 are arranged back to back or serially on a bracket 11 secured to the cam housing 5 by a suitable screw fastener 12.
  • the second actuator is designed to reinforce the pulse applied to the pin either separately or jointly with the pulse of actuator 9 so that the cam 8 may be moved in the direction of arrow S, in two fixed increments or steps, thus enabling it to selectively engage a short or a long needle butt 7.
  • the piston pin 16 of the second actuator 10 extends to the rear and is fixed against bracket 11.
  • Each actuator 9 and 10 is fed by a conduit 13 and 14 respectively into which air under pressure is supplied.
  • Suitable valve or supply mechanisms as well as programing means such as a digital computer is provided to furnish a pressure P and a pressure P to the conduits 13 and 14 respectively.
  • the source of pressured air, or even an inert gas, is shown in FIG. 4 schematically, it being obvious that it, too, as well as valves, regulators, etc., are conventional and well known.
  • the supply of pneumatic pressure, ie either or both of P and P is pre-programed and predetermined relative to the rotation of the needle cylinder by any of the conventional techniques, thereby establishing a predetermined knitting pattern.
  • the cam 8 is moved in stepwise fashion either in a single or double increment to engage with the selected needle butt 7.
  • a third pneumatic actuator 18 is to be placed in tandem with actuators 9 and 10 as is seen clearly in FIG. 3.
  • the piston pin 16 of the second actuator 10 is placed in tandem with the third actuator whose own piston pin extends rearwardly into a guide groove 17 formed in the bracket 11.
  • the third actuator is provided with its own intake conduit 19 which feeds a third pressure pulse P
  • the arrangement of the actuators 9, l0 and 18 and their respective piston pins 15, 16 and 20 is dictated by the form of the actuators, themselves, which are shown in detail in FIG. 4. This latter figure depicts the preferred form of actuator since it has been found to be simple, reliable and completely effective at low pressure inputs.
  • the actuators can be built in very small units and to very small tolerances so as to be ganged in series about the needle cylinder.
  • the actuator body 9 (which is similar in structure to actuators l0 and 18) comprises a front lid 23 and back cover 26, each having a peripheral lip and a central recess which cooperate to form a hollow interior chamber 30.
  • the piston pin extends through the front face of the lid 23 through an adjustable bushing 32 and has secured at its inner end a flat plate 21 which bears against a flexible diaphragm 22 which divides the chamber into front and rear sections.
  • the diaphragm 22 is stretched and mounted between the peripheral lips of the front lid 23 and the back cover 26 and is held by suitable screw fasteners 27 and 28 which also hold the two halves of the actuator 9 together.
  • the pressure pulse P enters from a source of regulated gaseous pressure 33 through conduit 13, into a channel 29 communicating with the chamber 30 to the rear of the diaphragm 22 where it expands and bends the diaphragm outwardly against the plate 21.
  • the delivery of the pulse P is regulated as to time and duration by suitable programing means such as an electronic or pneumatic computer 34.
  • the front lid 23 is provided with holes 24 and 25 opening to the atmosphere.
  • the pin 15 is normally biased against the diaphragm 22 by a spring 31 held within the adjustable bushing 32.
  • the bushing 32 may be placed so as to limit the outward movement of the pin 15, on actuation by the diaphragm 22.
  • the construction of the actuator 9 permits their easy arrangement in tandem or series. Two units may be placed back to back as shown in FIG. 1. In this case, the two pistons pins 15 and 16 face each other and by setting the second piston 16 against the fixed portion of the bracket, the double pulses P and P actuate the piston 15 to move a double increment.
  • the third actuator its diaphragm can act directly on the piston 16 of the second actuator as if it were the primary piston. Consequently, the simultaneous movement creates a triple movement.
  • the number of actuators may be multiplied as required to effect the exact stroke distance of the cam 8. It will be also obvious that the cam 8 may thus be employed to operate more than one or even two sets or groups of jack butts making the present invention quite versatile.
  • a knitting machine apparatus for operating a machine element such as a needle or jack having a control butt
  • said apparatus comprising a bracket mounted adjacent to said machine element and a plurality of pneumatic actuators serially arranged within said bracket and axially of said machine element, each of said actuators comprising a hollow body, a flexible diaphragm secured within and dividing said body into a front and rear chamber, and a movable member extending outwardly of said chamber, means for effecting movement of said extending member over a predetermined distance on application of a pneumatic pulse thereto, means retaining the outermost actuator from movement away from said machine element, a cam mounted on the extending member adjacent said machine element adapted to be moved into and out of operative engagement with the butt of said element, said cam mounting member having a rear end bearing on said diaphragm, and resilient means for maintaining said cam normally out of engagement with the butt of said machine element, and means for selectively feeding pneumatic pulses to one or simultaneously more of said actuators to cause one or
  • the apparatus according to claim 2 including a third pneumatic actuator arranged in series with said previously mentioned pair of actuators, the extending member of the second of said paired actuators being fixed against the back of said third actuator and the extending member of said third actuator fixed against outward movement whereby the simultaneous actuation of said third and pair of actuators causes movement of the movable member of the first of said paired actuators over a distance three times the predetermined distance.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US17785A 1969-03-12 1970-03-09 Control device for a textile machine Expired - Lifetime US3683644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS1777A CS164985B1 (enrdf_load_stackoverflow) 1969-03-12 1969-03-12

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US3683644A true US3683644A (en) 1972-08-15

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US17785A Expired - Lifetime US3683644A (en) 1969-03-12 1970-03-09 Control device for a textile machine

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US (1) US3683644A (enrdf_load_stackoverflow)
BE (1) BE747181A (enrdf_load_stackoverflow)
CS (1) CS164985B1 (enrdf_load_stackoverflow)
DE (1) DE2010315A1 (enrdf_load_stackoverflow)
FR (1) FR2034863A1 (enrdf_load_stackoverflow)
GB (1) GB1293631A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793850A (en) * 1970-07-16 1974-02-26 Camber Int Ltd Patterning system for a multi-feed circular knitting machine
US4492097A (en) * 1981-05-19 1985-01-08 Santoni & Co. Spa Circular knitting machine for hosiery articles
US5222380A (en) * 1991-05-31 1993-06-29 Lonati S.R.L. Pneumatic service circuit for circular knitting machine service devices
US20070208226A1 (en) * 2006-01-18 2007-09-06 Spotlight Surgical, Inc. Retractor illumination system
US20070293729A1 (en) * 2006-05-26 2007-12-20 Spotlight Surgical, Inc. Blade insert illuminator
AU2003205103B2 (en) * 2002-01-23 2008-10-16 Teleflex Medical Incorporated Illuminated retractor for use in connection with harvesting a blood vessel from the arm
US20090112068A1 (en) * 2007-10-24 2009-04-30 Spotlight Surgical, Inc. Blade Insert Illuminator
US20160090671A1 (en) * 2013-05-20 2016-03-31 Santoni S.P.A. Mobile cam device for commanding needles of a needle bed of a knitting machine
US20160102423A1 (en) * 2013-05-20 2016-04-14 Santoni S.P.A. Mobile cam device for commanding needles of a needle bed of a knitting machine
US20160215419A1 (en) * 2013-10-02 2016-07-28 Santoni S.P.A. Circular knitting machine
US20160265149A1 (en) * 2013-11-21 2016-09-15 Santoni S.P.A. Command device for a knitting machine
US11382711B2 (en) 2008-08-13 2022-07-12 Invuity, Inc. Cyclo olefin polymer and copolymer medical devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6433589U (enrdf_load_stackoverflow) * 1987-08-25 1989-03-01

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US691692A (en) * 1901-07-08 1902-01-21 Thorsten Von Zweigbergk Controlling system.
US1549072A (en) * 1924-03-31 1925-08-11 Sr Arthur C Dole Vacuum and pressure controlling mechanism
US1925571A (en) * 1926-11-29 1933-09-05 Combastion Fuel Oil Burner Com Oil burner apparatus
DE623170C (de) * 1932-06-22 1935-12-14 Franz Meiwald Rundwirk- bzw. Strickmaschine mit Exzenterantrieb fuer den Nadelhubring
US2416933A (en) * 1945-03-14 1947-03-04 Cotton Ltd W Patterning mechanism
DE800085C (de) * 1949-08-23 1950-09-01 Hagenuk Hanseatische Appbau Ge Mustereinrichtung an Rundstrickmaschinen
US2646781A (en) * 1951-02-08 1953-07-28 Juan A Doyen Vacuum spark control
US2738808A (en) * 1950-10-14 1956-03-20 Gen Motors Corp Spring biased diaphragm device
FR1287447A (fr) * 1961-01-30 1962-03-16 Cantab Métier à tisser les bas sans couture
US3043338A (en) * 1961-06-08 1962-07-10 Crowell Designs Inc Double action hydraulic cylinder
US3072146A (en) * 1959-09-24 1963-01-08 Gizeski Terrence Digital regulator valve
US3177686A (en) * 1961-08-18 1965-04-13 Wildt Mellor Bromley Ltd Knitting machines
US3183793A (en) * 1962-06-01 1965-05-18 Delman Co Differential fluid pressure motors
US3223001A (en) * 1963-11-04 1965-12-14 Robertshaw Controls Co Power element assembly
US3254509A (en) * 1960-05-21 1966-06-07 Marcella Sessa Moretta Circular knitting machines for the production of hosiery with double, outwardly turned-over welts
US3266377A (en) * 1964-11-13 1966-08-16 Ibm Piston adder apparatus
US3334545A (en) * 1965-03-10 1967-08-08 Robertshaw Controls Co Multiple position vacuum actuator
GB1140839A (en) * 1966-05-18 1969-01-22 John Carr Doughty Improvements in weft knitting machines
US3587251A (en) * 1969-03-11 1971-06-28 Santoni & C Spa Device for the operation of members in circular machines for stockings,socks and the like

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US691692A (en) * 1901-07-08 1902-01-21 Thorsten Von Zweigbergk Controlling system.
US1549072A (en) * 1924-03-31 1925-08-11 Sr Arthur C Dole Vacuum and pressure controlling mechanism
US1925571A (en) * 1926-11-29 1933-09-05 Combastion Fuel Oil Burner Com Oil burner apparatus
DE623170C (de) * 1932-06-22 1935-12-14 Franz Meiwald Rundwirk- bzw. Strickmaschine mit Exzenterantrieb fuer den Nadelhubring
US2416933A (en) * 1945-03-14 1947-03-04 Cotton Ltd W Patterning mechanism
DE800085C (de) * 1949-08-23 1950-09-01 Hagenuk Hanseatische Appbau Ge Mustereinrichtung an Rundstrickmaschinen
US2738808A (en) * 1950-10-14 1956-03-20 Gen Motors Corp Spring biased diaphragm device
US2646781A (en) * 1951-02-08 1953-07-28 Juan A Doyen Vacuum spark control
US3072146A (en) * 1959-09-24 1963-01-08 Gizeski Terrence Digital regulator valve
US3254509A (en) * 1960-05-21 1966-06-07 Marcella Sessa Moretta Circular knitting machines for the production of hosiery with double, outwardly turned-over welts
FR1287447A (fr) * 1961-01-30 1962-03-16 Cantab Métier à tisser les bas sans couture
US3043338A (en) * 1961-06-08 1962-07-10 Crowell Designs Inc Double action hydraulic cylinder
US3177686A (en) * 1961-08-18 1965-04-13 Wildt Mellor Bromley Ltd Knitting machines
US3183793A (en) * 1962-06-01 1965-05-18 Delman Co Differential fluid pressure motors
US3223001A (en) * 1963-11-04 1965-12-14 Robertshaw Controls Co Power element assembly
US3266377A (en) * 1964-11-13 1966-08-16 Ibm Piston adder apparatus
US3334545A (en) * 1965-03-10 1967-08-08 Robertshaw Controls Co Multiple position vacuum actuator
GB1140839A (en) * 1966-05-18 1969-01-22 John Carr Doughty Improvements in weft knitting machines
US3587251A (en) * 1969-03-11 1971-06-28 Santoni & C Spa Device for the operation of members in circular machines for stockings,socks and the like

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793850A (en) * 1970-07-16 1974-02-26 Camber Int Ltd Patterning system for a multi-feed circular knitting machine
US4492097A (en) * 1981-05-19 1985-01-08 Santoni & Co. Spa Circular knitting machine for hosiery articles
US5222380A (en) * 1991-05-31 1993-06-29 Lonati S.R.L. Pneumatic service circuit for circular knitting machine service devices
AU2003205103B2 (en) * 2002-01-23 2008-10-16 Teleflex Medical Incorporated Illuminated retractor for use in connection with harvesting a blood vessel from the arm
US9055935B2 (en) 2006-01-18 2015-06-16 Invuity, Inc. Retractor illumination system
US20070208226A1 (en) * 2006-01-18 2007-09-06 Spotlight Surgical, Inc. Retractor illumination system
US9271709B2 (en) 2006-01-18 2016-03-01 Invuity, Inc. Retractor illumination system
US9844364B2 (en) 2006-01-18 2017-12-19 Invuity, Inc. Retractor illumination system
US9271710B2 (en) 2006-01-18 2016-03-01 Invuity, Inc. Retractor illumination system
US20070293729A1 (en) * 2006-05-26 2007-12-20 Spotlight Surgical, Inc. Blade insert illuminator
US9877639B2 (en) 2006-05-26 2018-01-30 Invuity, Inc. Blade insert illuminator
US8920316B2 (en) 2006-05-26 2014-12-30 Invuity, Inc. Blade insert illuminator
US9241617B2 (en) 2006-05-26 2016-01-26 Invuity, Inc. Blade insert illuminator
US9060707B2 (en) 2007-10-24 2015-06-23 Invuity, Inc. Blade insert illuminator
US8088066B2 (en) 2007-10-24 2012-01-03 Invuity, Inc. Blade insert illuminator
US12161301B2 (en) 2007-10-24 2024-12-10 Invuity, Inc. Blade insert illuminator
US11583175B2 (en) 2007-10-24 2023-02-21 Invuity, Inc. Blade insert illuminator
US9468366B2 (en) 2007-10-24 2016-10-18 Invuity, Inc. Blade insert illuminator
US10582844B2 (en) 2007-10-24 2020-03-10 Invuity, Inc. Blade insert illuminator
US9986901B2 (en) 2007-10-24 2018-06-05 Invuity, Inc. Blade insert illuminator
US20090112068A1 (en) * 2007-10-24 2009-04-30 Spotlight Surgical, Inc. Blade Insert Illuminator
US11382711B2 (en) 2008-08-13 2022-07-12 Invuity, Inc. Cyclo olefin polymer and copolymer medical devices
US20160090671A1 (en) * 2013-05-20 2016-03-31 Santoni S.P.A. Mobile cam device for commanding needles of a needle bed of a knitting machine
US9689094B2 (en) * 2013-05-20 2017-06-27 Santoni S.P.A. Mobile cam device for commanding needles of a needle bed of a knitting machine
US9689095B2 (en) * 2013-05-20 2017-06-27 Santoni S.P.A. Mobile cam device for commanding needles of a needle bed of a knitting machine
US20160102423A1 (en) * 2013-05-20 2016-04-14 Santoni S.P.A. Mobile cam device for commanding needles of a needle bed of a knitting machine
US9683321B2 (en) * 2013-10-02 2017-06-20 Santoni S.P.A. Circular knitting machine
US20160215419A1 (en) * 2013-10-02 2016-07-28 Santoni S.P.A. Circular knitting machine
US9702068B2 (en) * 2013-11-21 2017-07-11 Santoni S.P.A. Command device for a knitting machine
US20160265149A1 (en) * 2013-11-21 2016-09-15 Santoni S.P.A. Command device for a knitting machine

Also Published As

Publication number Publication date
FR2034863A1 (enrdf_load_stackoverflow) 1970-12-18
CS164985B1 (enrdf_load_stackoverflow) 1975-11-28
GB1293631A (en) 1972-10-18
BE747181A (fr) 1970-08-17
DE2010315A1 (de) 1970-10-01

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