US3916646A - Electronic patterning process for a knitting machine - Google Patents

Electronic patterning process for a knitting machine Download PDF

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Publication number
US3916646A
US3916646A US321861A US32186173A US3916646A US 3916646 A US3916646 A US 3916646A US 321861 A US321861 A US 321861A US 32186173 A US32186173 A US 32186173A US 3916646 A US3916646 A US 3916646A
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US
United States
Prior art keywords
selector
cylinder
knitting
patterning
selector jacks
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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
US321861A
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English (en)
Inventor
Kazue Takigawa
Toshio Ueno
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MECHANICAL SOCIAL SYSTEMS FOUNDATION A CORP OF JAPAN
Daito Seiki KK
Original Assignee
Daito Seiki KK
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Publication date
Application filed by Daito Seiki KK filed Critical Daito Seiki KK
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Assigned to MECHANICAL SOCIAL SYSTEMS FOUNDATION, A CORP. OF JAPAN reassignment MECHANICAL SOCIAL SYSTEMS FOUNDATION, A CORP. OF JAPAN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JAPAN SOCIETY FOR THE PROMOTION OF MACHINE INDUSTRY
Anticipated expiration legal-status Critical
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

Definitions

  • a knitting machine provided with electronic patteming processing.
  • Information for different patterns is memorised by a memory storage means in binary digit or other form.
  • the pattern information is distributed for each pattern knitted for selective needle actuation.
  • a stepping motor is used for such actuation as an electro-mechanical transducer in the patterning units of the knitting machine.
  • the mechanical patterning unit may be used for the knitting of simple patterns and the electronic patterning unit for the knitting of more complex patterns or both units may be used simultaniously.
  • This invention relates to a knitting machine provided with electronic patterning processes in which pattern information is signaled and distributed electronically to each patterning unit.
  • Pattern signals represented by binary digits or other representations and patterning performed electronically by such pattern signals is also known.
  • each patterning unit may require 600 responses per second for the needle selecting of pattern knitting. If the conventional fulcrumed selector method is employed in such an electrically controlled circular knitting machine, a selector which is accomodated in a groove of the cylinder, has to be pushed into the groove with a pressure of 120 grams and has a stroke of 3 millimeters, so that to utilize this method is extremery difficult without employing a special electromechanical transducer.
  • the invention is aimed to resolve such aforementioned difficulty by providing a patterning unit including a stepping motor for the electrically controlled knitting machine which performes reliable needle selection with patterning mechanism similar to that of the ordinary mechanical knitting machine.
  • FIG. 1 is a vertical sectional view of an embodiment of the invention.
  • FIG. 2 is a fragmentary plain view of FIG. 1.
  • FIG. 3 is a fragmentary plain view of another embodiment of the invention.
  • 1 is a revolving cylinder formed with axially extending grooves on the peripheral surface. Individually slidable latch needles 2 are shown sliding in the axial direction of the cylinder in the grooves.
  • 3 is a revolving dial formed with radial extending grooves and individually slidable latch needles 4 in the grooves.
  • 5 is a selector jack. A jack raising cam 7 in a cam box elevates the selector jack by its knitting butt 6 so that the cylinder needle 2 which is accomodated above the selector jack in the same groove is raised into the knitting position.
  • the aforementioned patterning mechanism comprising needles and selector jack in a cylinder is completely the same as known mechanical circular knitting machines.
  • a patterning butt of the selector jack 5 is a patterning butt of the selector jack 5.
  • the several kinds of stepped patterning butt of the selector jack are operated by manually patterned selector levers 9 for the known mechanical needle selection.
  • 10 is a stepping motor (a pulse motor).
  • the selector lever extends substantially perpendicularly to the crank arm and spindle.
  • a salient pole of stator 11 in the stepping motor is magnetized by an electronic pulse being input from a computer memory bank such as the patterning information memorizing storage means 18 or other memory storages having preprogramed pattern information
  • a rotor 12 of the stepping motor rotates either in a clockwise or counterclockwise direction with a certain fixed angle which is decided by the number of the salient motor poles.
  • crank arm 13 is a spindle of the rotor perpendicularly 12 to which a crank arm 14 is fixed.
  • the crank arm moves a selector lever 15 which has a beveled outer edge and is pivoted on the crank arm, in the direction of the arrow as shown in the drawing.
  • selector lever 15 protrudes, an operating butt 16 of the selector jack is pushed into the groove so that the knitting butt of the selector jack will miss the 20 jack raising cam 7, and the cylinder needle will remain in the nonknitting position.
  • FIG. 3 is an embodiment of a linear stepping motor 17 being used for the patterning unit.
  • a slider 15a of the linear stepping motor 17 being used for the patterning unit.
  • a slider 15a of the linear stepping motor is used instead of the selector lever directly for the needle selection.
  • the slider 15a is operated in the direction of the arrow illustrated on FIG. 3 by means of the magnetization of the salient pole of stator 11a which is magnetized by pulsed pattern signals from the computer memory bank or other memory storage.
  • the slider 15a pushes the operating butt 16 of the selector jack 5 to prevent the cylinder needle from being raised into the knitting position.
  • the linear stepping motor can control directly the patterning of the knitting machine.
  • the electronic patterning units having the selector lever 15 of the stepping motor and a mechanical patterning unit having the ordinary selector levers 9 are set on the same machine.
  • both of two units can be operated simultaneously but also the electronic patterning unit can be operated and the mechanical unit can be canceled, and vice versa when a small pattern is required.
  • the invention is based on the using of the stepping motor as an electromechanical transducer so that the special selector which is being used in the conventional electro-magnetic controled circular knitting machine is not required.
  • the patterning mechanism including the stepping motor can be set on the conventional mechanical knitting machine. Therefore special high expense is not demanded on the cost of the machine.
  • the stepping motor can control at extremely high speed and can provide high response so that the knitting machine can run at comparatively high speed.
  • the invention is based on the combination of the electronic patterning unit including the stepping motor and the ordinary mechanical patterning unit, in order to save complex works which are made as all kind of patterning can be carried out by the electronic patterning unit.
  • the mechanical patterning unit is employed when small or simple patterns are be required. For big and complex patterns the electronic patterning unit is employed.
  • the pattern preparation for the mechanical patterning unit requires less time and complexity than the ordinary mechanical machines, and moreover the patterning unit of the invention is able to be the merits of both electronic and mechanical patterning units.
  • a circular knitting machine comprising a rotatable cylinder having a plurality of longitudinally extending circumferential grooves therein, latch needles positioned in said grooves adjacent the top of the cylinder, selector jacks positioned in the grooves at the bottom of said cylinder each having patterning butts, an operating butt and a knitting butt thereon with the knitting butt being in engagement with the latch needles whereby on raising each of the'individual selector jacks the individual latch needle associated therewith will be raised into a knitting position, cam means positioned adjacent the selector jacks engageable with the knitting butts of the selector jacks for moving the selector jacks up on rotation of the cylinder in accordance with the configuration of the cam means, and structure for electronic patterning processing including storage means for memorizing pattern information, a rotary stepping motor responsive to the storage means in accordance with the pattern memorized for bi-directional rotation in two angular directions a predetermined amount, a spindle secured to the rotary stepping motor for rotation

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US321861A 1972-01-21 1973-01-08 Electronic patterning process for a knitting machine Expired - Lifetime US3916646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47008093A JPS5228912B2 (enrdf_load_stackoverflow) 1972-01-21 1972-01-21

Publications (1)

Publication Number Publication Date
US3916646A true US3916646A (en) 1975-11-04

Family

ID=11683691

Family Applications (1)

Application Number Title Priority Date Filing Date
US321861A Expired - Lifetime US3916646A (en) 1972-01-21 1973-01-08 Electronic patterning process for a knitting machine

Country Status (9)

Country Link
US (1) US3916646A (enrdf_load_stackoverflow)
JP (1) JPS5228912B2 (enrdf_load_stackoverflow)
CH (1) CH560267A5 (enrdf_load_stackoverflow)
DD (1) DD102742A5 (enrdf_load_stackoverflow)
DE (1) DE2302416C3 (enrdf_load_stackoverflow)
ES (1) ES410763A1 (enrdf_load_stackoverflow)
FR (1) FR2168521B1 (enrdf_load_stackoverflow)
GB (1) GB1411031A (enrdf_load_stackoverflow)
IT (1) IT988100B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068497A (en) * 1976-10-19 1978-01-17 Milliken Research Corporation Circular knitting machine
US4708002A (en) * 1984-12-10 1987-11-24 Lonati S.P.A. Circular knitting machine incorporating a device for setting to work knitting cams, in particular for hose knitting
US4860557A (en) * 1987-03-17 1989-08-29 Jumberca, S.A. Needle selection system for a circular knitting machine
US5018369A (en) * 1988-12-30 1991-05-28 Lonati S.P.A. Device for activating knitting cams in circular knitting machines
CN103485058A (zh) * 2013-10-11 2014-01-01 王坤锋 一种应用于纬编针织小圆机中的新型下盘提花编织机构

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546952A (en) * 1977-06-10 1979-01-19 Omron Tateisi Electronics Co Pattern needle selector of v bed knitting machine
JPS546951A (en) * 1977-06-10 1979-01-19 Omron Tateisi Electronics Co Pattern needle selector of v bed knitting machine
JPS546953A (en) * 1977-06-10 1979-01-19 Omron Tateisi Electronics Co Pattern needle selector of v bed knitting machine
JPS55160402U (enrdf_load_stackoverflow) * 1979-05-08 1980-11-18
JPS6433589U (enrdf_load_stackoverflow) * 1987-08-25 1989-03-01

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402309A (en) * 1966-06-20 1968-09-17 Gen Electronic Lab Inc Bidirectional limited motion mechanism
US3442097A (en) * 1964-11-21 1969-05-06 Francesco Lonati Device for displacing needles for circular knitting machines
US3577749A (en) * 1967-07-22 1971-05-04 Bentley Mach Dev Co Circular knitting machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442097A (en) * 1964-11-21 1969-05-06 Francesco Lonati Device for displacing needles for circular knitting machines
US3402309A (en) * 1966-06-20 1968-09-17 Gen Electronic Lab Inc Bidirectional limited motion mechanism
US3577749A (en) * 1967-07-22 1971-05-04 Bentley Mach Dev Co Circular knitting machines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068497A (en) * 1976-10-19 1978-01-17 Milliken Research Corporation Circular knitting machine
US4708002A (en) * 1984-12-10 1987-11-24 Lonati S.P.A. Circular knitting machine incorporating a device for setting to work knitting cams, in particular for hose knitting
US4860557A (en) * 1987-03-17 1989-08-29 Jumberca, S.A. Needle selection system for a circular knitting machine
US5018369A (en) * 1988-12-30 1991-05-28 Lonati S.P.A. Device for activating knitting cams in circular knitting machines
CN103485058A (zh) * 2013-10-11 2014-01-01 王坤锋 一种应用于纬编针织小圆机中的新型下盘提花编织机构

Also Published As

Publication number Publication date
ES410763A1 (es) 1975-12-16
JPS4875854A (enrdf_load_stackoverflow) 1973-10-12
DE2302416C3 (de) 1978-09-14
FR2168521B1 (enrdf_load_stackoverflow) 1974-11-08
DE2302416A1 (de) 1973-12-06
IT988100B (it) 1975-04-10
DE2302416B2 (de) 1978-01-19
DD102742A5 (enrdf_load_stackoverflow) 1973-12-20
JPS5228912B2 (enrdf_load_stackoverflow) 1977-07-29
FR2168521A1 (enrdf_load_stackoverflow) 1973-08-31
CH560267A5 (enrdf_load_stackoverflow) 1975-03-27
GB1411031A (en) 1975-10-22

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MECHANICAL SOCIAL SYSTEMS FOUNDATION, 4-28, MITA 1

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JAPAN SOCIETY FOR THE PROMOTION OF MACHINE INDUSTRY;REEL/FRAME:003838/0050

Effective date: 19801221