US2129148A - Independent needle knitting machine - Google Patents

Independent needle knitting machine Download PDF

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Publication number
US2129148A
US2129148A US168645A US16864537A US2129148A US 2129148 A US2129148 A US 2129148A US 168645 A US168645 A US 168645A US 16864537 A US16864537 A US 16864537A US 2129148 A US2129148 A US 2129148A
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US
United States
Prior art keywords
needles
needle
butt
cam
butts
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
US168645A
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English (en)
Inventor
Albert E Page
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.)
Scott and Williams Inc
Original Assignee
Scott and Williams Inc
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
Priority to BE430601D priority Critical patent/BE430601A/xx
Application filed by Scott and Williams Inc filed Critical Scott and Williams Inc
Priority to US168645A priority patent/US2129148A/en
Priority to US202559A priority patent/US2192098A/en
Application granted granted Critical
Publication of US2129148A publication Critical patent/US2129148A/en
Priority to GB29322/38A priority patent/GB505000A/en
Priority to CH210188D priority patent/CH210188A/fr
Priority to FR844590D priority patent/FR844590A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/06—Circular knitting machines with independently-movable needles with needle cylinder and dial for ribbed goods

Definitions

  • This invention lelates to independent needle knitting machines, and more specifically to a machine adapted to make patterned fabric by stitch variation.
  • One of the objects of the invention is to produce a simplified mechanism for knitting patterned fabric such as underwear or outerwear.
  • Another object is to produce a simplified "memory device for a multi-feed circular knitting machine. It is characteristic of the invention that the needles have sliding butts which are used to give selectivity.
  • Fig. '1 is a simplified front elevation of a multifeed, independent needle, rib knitting machine, in which the present invention has been embodied in the dial;
  • FIG. 4 is a plan view of a section of the sliding control ring for moving the dial needle cams of Figs. 2 and 12;
  • Fig. 5 is a view in side elevation of an electromechanical hammer suitable for selecting the sliding butts of the needles
  • Fig. 12 is a plan view of the dial cams and needles for some of the feeds of the machine of Fig. 1 when that machine is adjusted to make 'tuck and float stitch patterns; the illustrative Fig. 15 is a plan view similar to Figs. 12 and.
  • Fig. 16 is a view in radial vertical section through a modified form of means of selecting needle butts, the selecting being done by a trick wheel; a
  • Fig. 17 is a view in elevation looking radially inward, with the edge of the dial cut oil, showing a detail of the operation of the trick wheel of the modification of Fig. 16, the arrows representing the direction of movement of the dial and. the trick wheel and gear; while Fig. 18 is a perspective view of the sliding butt needle.
  • One of the problems in the modern knitting machine, and particularly the multi-feed circular knitting machine, is to find room for all the patterning mechanism which is necessary to produce the desired fabric.
  • One general type of mechanismfor accomplishing this end is the socalled memory device, in which selecting means are not required at a following feed in order to change the stitch there.
  • the present invention is shown embodied in a memory device, but it should be understood that, broadly speakingand particularly with reference to the needle itself--the invention is not limited. to this particular class of device.
  • the present invention has the great advantage of simplicity in that the selecting means are enabled to act directly on the needle without the intervention .of jacks or other elements.
  • the invention is shown embodied in the dial and dial needles of a revolving needle cylinder, multi-feed, underwear machine. chine with the variations in the rib stitches at the first, second, third, fifth, sixth andseventh feeds. While the manipulation of the dial needle hook from one feed to another is varied by having two butts on each needle, it should be understood that a. certain amount of patterning is obtainable in accordance with this invention with only one butt on each needle.
  • the needle l9 which is shown in Fig. 18 has the usual hook 20 with a pivoted latch 2
  • the dial 24 has slots 25 to receive the needles. ;
  • the low fixed butts 23 project above the slots 25 of the dial, as shown in Fig. 17.
  • this fixed or low butt on the needle is so associated with operating cam paths as to manipulate the needle for the making of plain stitches. It can, of course, be located at any desired point along the length of the shank.
  • the length of the butt is such that it may project below the shank of the needle or above the low butt of the needle. When it is projected above the low butt, it is adapted, in cooperation with certain cams to be described, to cause special manipulation of the needle It has been found possible to cause all the necessary movements of the sliding butt without rocking the needle or otherwise disturbing its longitudinal or knitting operation. While the sliding butt is moved downwardly by the selecting means, it is moved upwardly automatically by the particular shape and form of the dial taken in connection with the longitudinal movement of the needle. To achieve this, a groove or depression 29 is cut in the dial 24, as shown for instance in Figs. 6 to 10, this depression or groove 29 being adapted to underlie the butts 26 except when the needle is in extreme clearing position.
  • immediately succeeding the two clearing cams 32 in a counterclockwise. direction therefore are the knitting points for the plain feeds.
  • these plain feeds will be designated as 4
  • the feeds immediately following them in a counterclockwise or knitting direction will be, designated as 5 and 6, respectively.
  • cam 31 is undercut and does not push-out the butt-depressed needles. They make float stitches. All the needles are then drawn down at the knitting point by cam 3
  • the same sequence of operation occurs at feeds 3 and 3. Entering feed 4, as the needles leave the stitch cam 3
  • cam 35 there is a cam 38 which has no overhanging portion to push needles radially inward, so that all the needles take yarn, are cleared by the cam 33 and knit at the knitting cam 3i of the fourth feed.
  • the entire series of operations is repeated at feeds 5, t, l and 8.
  • the cam arrangement is that shown in Fig. 13.
  • the knitting cams 3i and the pushout cam 33 are unchanged, but there is a new push-in or guard cam 39 and a new clearing cam 40 to take the. place of the clearing cam 31 at feeds 5, 2 and 3, and a clearing cam M of a different shape at feed d.
  • the only undercut cams are the clearing cams 40 at feeds l, 2 and 3, all needles being treated alike by all the other cams. With this construction all the needles are pushed out by the regular push-out cam 33 to a tuck position andv are held in approximately this position by the guard cam 39. All take yarn.
  • the push-in cam 35' has a point adapted to push needles inward after they ride oil the push-out cam 33, this point being undercut at 36 so that only those needles whose sliding butts are up will be pushed in.
  • the needles whose butts are depressed will pass through the undercut to take the yarn but they tuck rather than knit when they reach the next hitting cam 3
  • the needles with elevated butts that are pushed in, as above-mentioned, do not take yarn and therefore make float stitch ateach of feeds I, 2 and 3.
  • the clearing cams 33 at feeds 8, 2 and 3 are each pivoted at a point t5 and when swung in a clockwise direction about this pivot they move out to clearing position though not far enough to cause any depressed sliding butts to be cammed upwardly, as shown in Fig. 10 but rather to the extent shown by the dotted needle in Fig. M.
  • This movement of the clearing cams 43 is obtained from an oscillating control .ring ll lying on the dial cap just inside the needles, each of the clearing cams 4'53 at feeds 5, Hand 3 being pivotally connected to the ring so that its oscillation moves them from one position to the other. Movement in the direction of the clockwise arrow on the ring in Fig.
  • the operation of the control ring M is caused by a pattern chain as racked ahead by a pawl 33 operated from a lug on a ring (not shown) revolving with the needle cylinder.
  • a bell crank lever 50 mounted on the frame 5! of the machine and given a rocking movement periodically by the lug on the revolving ring.
  • the pawl 49 On the upper end of this bell crank lever 50 is the pawl 49 having (Fig. 2).
  • the rack wheel is coaxial and revolv- To bring ing with a sprocket wheel 53 carrying the pat- .tuck stitches on all needles.
  • any suitable form of selecting the sliding butt 26 can be employed.
  • I have shown two forms.
  • Figs..1 and 5 is shown a form of electro-mechanical selection of the general type shown in the Albert E. Page application Serial No. 137,106, filed April 15, 1937.
  • Figs. 16 and 17 is shown a trick wheel construction for selecting the butts.
  • Another type of device which would be suitable for this work is an endless paper or metal sheet with holes punched therein which could be passed over the butts and thus push down those where there were no perforations.
  • I will describe in general terms the electro-mechanical mechanism shown diagrammatically in Figs. 1 and 5. As shown in Fig.
  • the selecting element which acts directly on the high butt 26 of the needles is a pivoted hammer 34 carried by a frame which is mounted non-revolubly on the collar carrying the dial cap 60.
  • This frame 62 can be of metal and one part of it can be used as a core for an electro-magnet 63. of the pivoted hammer 34 and when energized this coil will attract the back end of the hammer and cause the high butt below the other end of the hammer to be depressed.
  • a tension spring 64 tends to keep the hammer in its upper position where the butts of the needles are not acted on.
  • This drum bears on its periphery a pattern 66 which can, if desired, be colored so as to create selective impulses in photo-electric cells as beams of light reflected from the pattern surface enter such cells.
  • These cells are indicated in Fig. 1 by the numeral 61. They are circumferentially stationary but move vertically on posts 18 to read the pattern in a spiral corresponding to the individual needles and the stitches in the resulting fabric.
  • Mechanism can be provided to cause each of these cells to reverse its direction at the end of travel,thus reading the pattern first in one direction and then in the other.
  • Inthe drawings I have shown .two photo-electric cells, one to act on the high butts of the needles just prior to the first feed,
  • Fig. 1 I have indicated a This electro-magnet is close to the back endv suitable driving and reversing mechanism for the vertical movements of the cells.
  • This is operated from a large gear ring 68 mounted on and revolving with the shaft carrying the needle cylinder but located above the bracket supporting the cylinder and the dial cam ring.
  • a train of gears 69, 10, H and 12 transmits its movements to reversible bevelled driving gears 13, 14, I5, the clutch element 16 of such reversible gearing being initially actuated in a vertical direction to start the reversing operation by the arrival of the cell at the end of its travel.
  • the vertical travel of the cells is caused by screw threads 1'! on the vertical rods 78 carrying these cells.
  • the trick Wheel construction for selecting the needle butts is shown in Figs. 16 and 17. As shown in these two figures, both the low butts 23 and the sliding high butts 26 of the needles project above the dial 24. Advantage of this fact is taken by using a trick wheel 19 mounted on a horizontal axle 80 revolving just above the high butts. There are fiat teeth 8
  • gear wheel 82 mounted beside the trick wheel and having teeth 83 around its periphery which are slightly longer than those on the trick wheel.
  • the teeth on the gear wheel are offset with relation to the trick wheel teeth so that they will overlap and intermesh with the low butts 23 of the needles and the passing of the needles will cause the gear wheel to turn.
  • the trick wheel is turned with its teeth in register with'the high butts rather than the spaces between the needles.
  • this pushout cam in causing this movement, is in contact with the low fixed butt 23 and that therefore all the needles are brought out to this tuck position.
  • the continued revolution of the dial brings the needles opposite the guard cam 35 which is undercut at 36, at such a level as to permit the needles whose high butts have been depressed to pass under the cut 36, but the needles whose butts are still raised are forced radially inward to the dotted position shown in Fig. 8 and the line 88 of Fig. 12.
  • the dial needles reached the position of Fig. 7 the cylinder needles rose up their clearing cam 85 and the dial needles acted to hold the fabric down to assist in clearing the latches of the cylinder needles.
  • the outer cam 39 does not push the nondepressed butt needles radially inward after they reach the tucking position and all .the needles take yarn.
  • the clearing cam 40 which is undercut as shown at Fig. 14, leaves the depressed butt needles at tuck position but pushes out to clear position the needles whose butts have not been depressed. Thereafter the knitting cam 31 operates on all the needles and the needles which have not been cleared make tuck stitches while the needles whose butts have not been depressed knit plain stitches. At feeds 2 and 3 the operation is the same as at feed i. At feed 4, instead of the clearing cam 4
  • a knitting machine having a needle bed and a plurality of independent needles therein having hooks and shanks, one or more of said needles having a butt slidable with relation to the sha of the needle in the plane of the hook of its needle and of sufficient size to project above or below the rest of the needle for selecting purposes, there being a groove in the bed whereby the butt can project below the shank in certain longitudinal positions of the needle but is cammed upwardly when moved to certain other positions and thereby caused to project above the rest of the needle,. in combination with selecting means associated with the bed adapted to push selectively on said butts in the planes of the hooks of the needles.
  • a knitting machine having a needle bed and a plurality of independent needles therein having hooksand shanks, a plurality or said needles each having a butt on the shank slidable with relation to the shank in the plane of the hook and adapted to project ei her above or below the rest of its.
  • needle for selec ing purposes there being a groove in the bed whereby a butt that projects below the shank will be cammed up and project above the rest of the needle when the latter is moved to extreme clearing position.
  • a knitting machine having a needle bed, a plurality of independent needles therein having hooks, shanks and fixed operating butts, and cams above said needles. for giving them longitudinal operating movements' in combination with a butt on each of a plurality of said needles slidable with relation to the shank of the needle in the plane of the hook of the needle and of sufficient size to project above or below the rest of the needle for selecting purposes, there being a groove in the bed whereby the butt can project below the shank in certain longitudinal positions of the needle but is cammed upwardly when moved to certain other positions and thereby caused to project above the rest of the needle.
  • a knitting machine having a needle bed, a plurality of independent needles therein having hooks, shanks and fixed operating butts, and cams above said needles for giving them longitudinal operating movements, in combination with a frictioned butt on each of said needles slidable with relation to the shank in the plane of the hook and adapted to project either above or below the rest of the needle for selecting purposes, there being a depression in the bed whereby a butt that projects below the shank will be cammed up and project above the rest of the needle when the latter is moved to clearing position.
  • a knitting machine having a needle bed, a plurality of independent needles therein having hooks, shanks and fixed operating butts, in combination with a butt inside said fixed butt on each of a plurality of needles adapted to slide with relation'to the shank and to project beyond the fixed butt in the plane of the hook or to be buried therein, means above the needle bed to select sliding butts by depressing those not wanted to the level of the fixed butts, and cam paths to give the needles diiferent manipulations according to whether they present a high or a low butt.
  • a knitting machine having a needle support, a plurality of independent needles therein having hooks, shanks and fixed operating butts, and a frictioned member passing through the shank of each of a plurality of needles in the planes of the hooks of the needles and adapted to project above or below the rest of the needle as a selecting butt, there being a groove in the needle support whereby the butt can be left flush with the fixed butt on one side of the shank while the needle is in certain longitudinal positions but will be cammed up when the needle moves out to extreme clear position, in combination with a cam path adapted to act on the fixed butts and additional cam surfaces adapted to give special movements .to needles whosesliding butts project above the fixed butts, and means to select the sliding butts.
  • a knitting machine having a dial, a plurality of independent needles therein having hooks, shanks and fixed operating butts, and a frictioned member passing through the fixed butt 01' each of a plurality of needles in the planes of the hooks of the needles and adapted to project above the fixed butt or below the shank as a selecting butt, in combination with means to select from among the sliding butts by depression till approximately flush with the fixed butts and projecting below the shanks, a cam path to act on the low butts and supplemental cams to act on sliding butts projecting thereabove, the dial having a groove therein to permit said sliding butts to project below the shanks in certain needle positions but to cam them up upon moving to certain other positions,

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US168645A 1937-10-12 1937-10-12 Independent needle knitting machine Expired - Lifetime US2129148A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE430601D BE430601A (fr) 1937-10-12
US168645A US2129148A (en) 1937-10-12 1937-10-12 Independent needle knitting machine
US202559A US2192098A (en) 1937-10-12 1938-04-16 Independent needle for knitting machines
GB29322/38A GB505000A (fr) 1937-10-12 1938-10-10
CH210188D CH210188A (fr) 1937-10-12 1938-10-10 Machine à tricoter.
FR844590D FR844590A (fr) 1937-10-12 1938-10-11 Machine à tricoter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US168645A US2129148A (en) 1937-10-12 1937-10-12 Independent needle knitting machine

Publications (1)

Publication Number Publication Date
US2129148A true US2129148A (en) 1938-09-06

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Application Number Title Priority Date Filing Date
US168645A Expired - Lifetime US2129148A (en) 1937-10-12 1937-10-12 Independent needle knitting machine

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US (1) US2129148A (fr)
BE (1) BE430601A (fr)
CH (1) CH210188A (fr)
FR (1) FR844590A (fr)
GB (1) GB505000A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365915A (en) * 1964-08-06 1968-01-30 Morat Gmbh Franz Dial needle control arrangement
US3805555A (en) * 1970-07-02 1974-04-23 Fouquet Werk Frauz & Planck Multi-system circular knitting machine with needle selection device, and method for needle selection
US3990270A (en) * 1972-11-03 1976-11-09 Hayes-Albion Corporation Knitting machine
US20220325450A1 (en) * 2019-06-17 2022-10-13 Santoni S.P.A. A circular knitting machine with an offset system for the stitch cam of the needle plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365915A (en) * 1964-08-06 1968-01-30 Morat Gmbh Franz Dial needle control arrangement
US3805555A (en) * 1970-07-02 1974-04-23 Fouquet Werk Frauz & Planck Multi-system circular knitting machine with needle selection device, and method for needle selection
US3990270A (en) * 1972-11-03 1976-11-09 Hayes-Albion Corporation Knitting machine
US20220325450A1 (en) * 2019-06-17 2022-10-13 Santoni S.P.A. A circular knitting machine with an offset system for the stitch cam of the needle plate

Also Published As

Publication number Publication date
BE430601A (fr)
FR844590A (fr) 1939-07-27
CH210188A (fr) 1940-06-30
GB505000A (fr) 1939-05-03

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