US2123535A - Spring needle knitting machine - Google Patents

Spring needle knitting machine Download PDF

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Publication number
US2123535A
US2123535A US83322A US8332236A US2123535A US 2123535 A US2123535 A US 2123535A US 83322 A US83322 A US 83322A US 8332236 A US8332236 A US 8332236A US 2123535 A US2123535 A US 2123535A
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United States
Prior art keywords
pressers
presser
selecting
needle
butts
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Expired - Lifetime
Application number
US83322A
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English (en)
Inventor
Robert H Lawson
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Hemphill Co
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Hemphill Co
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Publication date
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Publication of US2123535A publication Critical patent/US2123535A/en
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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
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/38—Circular knitting machines with independently-movable needles for producing patterned fabrics with stitch patterns
    • 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
    • D04B15/28—Needle pressers
    • 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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • 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
    • D04B9/04—Circular knitting machines with independently-movable needles with one set of needles with spring or bearded needles

Definitions

  • the invention herein disclosed is concerned with means for selectively forming pattern work in circular, independent needle knitting machines of the spring beard type, the pattern means acting upon pressers which control the knitting function of the needles.
  • the invention has for one of its purposes the application to spring needle pressers of manually controlled selecting mechanism such as has been disclosed in United States Patent Number 2,067,877. While selecting mechanism of that type is especially advantageous when used with multi-feed knitting machines, it is within the scope of the invention to employ other selecting devices which may function to control pressers in performing their usual beard pressing motions or in so controlling them that they fail to press beards of needles whereby ornamental stitches may be produced in a fabric.
  • Fig. 1 is a sectional view showing the invention as it is applied to pressers of the rocking type
  • Fig. 2 is a development illustrating several cams in a multi-feed knitting machine and selecting devices mounted for operation upon pressers;
  • Fig. 3 is a section illustrating a needle in lowermost position, the presser being shown after having performed its pressing function and prior to being returned for another selection;
  • Fig. 4 is a section corresponding to Fig. 3 but showing the needle in uppermost position for taking yarn and the cooperating presser being illustrated in a position wherein it is about to be selected for pressing the beard of its needle as that needle draws a stitch;
  • Fig. 5 is a, fragmentary view showing in section part of a needle and presser just after the presser has returned to a non-selected position
  • Fig. 6 is a View corresponding to Fig. 5 but showing the presser actually performing its function of pressing a needle beard;
  • Fig. 7 is an elevation showing two adjacent selecting devices in position on a multi-feed knitting machine
  • Fig. 8 is a plan view of the multi-feed knitting machine illustrated, certain parts being broken away and shown in section for better illustrating selecting plungers and presser cams;
  • Fig. 9 is a sectional view corresponding to Fig. 1 but showing a modified form of the invention wherein the same selecting means is employed to control beard pressers of the sliding yp Fig. 10 shows in a development the path of needle butts, needle cams, the path of presser butts and the cams for selecting their controlling pressers according to this form of the invention;
  • Fig. 11 shows in a sectional View a needle in lowermost position and a presser which has been returned to its non-selected position ready to be selected for performing its function at the next knitting station, there being no interference between needle beard and pressers at this position;
  • Fig. 12 is a corresponding View illustrating a needle in its upper yarn taking position and the cooperating presser after being selected, but just prior to being moved by its raising cam to perform its usual function.
  • each of the feeds of a multi-feed knitting machine with individual selecting means for controlling pressers at that feed, a plurality of removable butts being formed on each presser which will make possible any pattern desired.
  • Each of these selecting devices is of a type wherein selecting elements or plungers are manually set in butt engaging position or are withdrawn and locked out of that position, it being possible to reset all of these plungers about a multifeed machine in a very few minutes thereby completely changing the pattern without replacing any of the parts of the machine or of the pattern devices associated therewith.
  • Figs. 1-8 the first form of the invention will be disclosed.
  • the invention has been illustrated as applied to a multi-feed knitting machine and is especially advantageous when employed in that manner, but it is to be understood that I am by no means limited to such an application of the invention but may employ it on hosiery machines or other machines of a single feed type.
  • a needle cylinder I herein to be considered as rotating within a machine tricks a series of spring beard needles 3 having 1 butts 4 thereon which are guided by stitch drawing cam 5 and other cams 6, land 8.
  • the cooperating pressers 9 are controlled to press the beards ID of the needles at the proper time.
  • the cams 58 are fixed to a cam ring ll formed in sections about said machine and are attached to the base of the machine by means of suitable connecting elements.
  • a ring l2 also formed in sections is supported upon a series of columns l3 fixed to the base of the machine'havinga recess therein.
  • the usual sinker support l2 having slots therein within which sinkers are slidable.
  • This ring is driven in a known manner by interconnection with the needle slots of the cylinder.
  • These sinkers cooperate with the needles in the formation of stitches in a manner well known in the art.
  • Sinker cams are formed in a cap l5 attached to the top surface of the ring [2. This cap is also slotted for the reception of stems l6of presser cams l1.
  • the pressers 9 are formed in such a manner that they are retained within the needle slots and pivot against their respective needles so that cams I! may rock them inwardly whenever relative movement causes the upper ends of said pressers to sweep past said cams. This pressing movement is dependent upon selecting of each individual presser sothat it will be raised to the position shown in Figs. 1 and 6. If a presser is not selected it will travel .at a low elevation as indicated in Fig. 5 wherein cam I? does not engage the upper end of the said presser, and in such case, the cooperating needle will not cast off its stitch at that knitting station.
  • Each of the pressers will preferably have its surface which bears against the needle within the slot flattened for a slight extent so that when moved lengthwiseof the slot, the pressure will not be rocked to cause interference between the upper end of the same and the beard of the needle.
  • the lower portion of each presser is cut out as indicated by numeral 23 so that springs 24 may engage within this cut out portion and resiliently maintain the pressers within the needle slots, also maintaining the upper ends outwardly. These springs 24 are maintained in a definite position upon the cylinder since they are held within a narrow annular groove out in the outer surface thereof.
  • each presser is of such a length that the pressers may be moved lengthwise of and within their'slots for the necessary extent but will not move beyond definite limits.
  • Each of the pressers is originally provided with a number of butts of saw-tooth shape indicated at 25, these butts bein removable by any convenient means or method such as by breaking or cutting. While I have shown I 0 butts on each presser thus giving stages or steps of selection, it is to be understood that I may employ any number of steps depending upon the pattern which is desired and upon the length of pressers and/or number of selecting plungers employed. The principles of the invention are all it is intended to illustrate in the mechanism shown and described in this case.
  • a butt 26 is provided above the frangible selecting butts 25, this butt engaging a cam 21 for the purpose of returning each presser to a nonselected position after passing each separate feeding station in case the machine is of multi-feed type, or after the feeding station if the machine is to knit at only one station.
  • any presser If any presser is not selected it will pass along at a low level and will fail to be engaged by its presser cam and will thus have no effect on its cooperating needle.
  • the two movements, that of selection and that of pressing, are entirely separate and individual movements thus making the device more positive in its action and also allowing more simple selecting means to be employed since the selecting means does not enter into the function of pressing.
  • Each selecting unit has been mounted upon a support 28 suit ably attached to cam supporting segments I I, and, as shown herein, comprises upright elements 29 and 29' adjustably mounted on support 28, a series of spacing and guiding strips 30'between which suitable plungers 3
  • Each of these plungers is preferably held inwardly by means of springs (not shown) but may be engaged by a suitable hooked instrument or the like and pulled outwardly to be locked in an outer or inactive position by means of notches in each plunger which engage other means (not shown).
  • plungers are to be set for any given pattern, and in the event the pattern is to be changed, it is only necessary for the machine operator to reset the plungers at each station about the machine so that the desired' pressers will be lifted by means of active plungers at those courses and wales wherein the corresponding needles are to knit, and at courses the wales wherein beards of needles are not to be pressed, no plungers will be in active position in alignment with a butt left on the corresponding pressers to raise the same.
  • the selecting means which I have illustrated is that which I choose to employ with the preferred form of the invention, but it is to be understood that many other selecting means might be used in conjunction with the pressers herein shown to carry out the method of selecting and thereafter pressing without departing from the original spirit of the invention. It is within the scope of the invention to use plungers or'other selecting instrumentalities which may be controlled by trick wheels, jacquard mechanisms or other automatic means for varying the pattern which is to be formed.
  • Figs. 2, 3 and 4 wherein is shown the pathway which needle butts and presser butts follow.
  • one of the earns 21 will lower all pressers to a level in which their upper ends would pass beneath presser cams I1 and at which level the butts 25 will be in alignment with the selecting plungers 3
  • the presser passes the series of plungers 3
  • That plunger will then elevate the presser throughout a suflicient extent to bring the upper end of thepresser to a level at which the presser cam at that next station will force that selected presser inwardly against the beard of its needle at the proper time to cast off the old loop as the new stitch is drawn.
  • This pressing is accomplished at such a time relative to needle movement and in a manner well known to those skilled in the art.
  • another cam 21 will return all selected pressers to non-selected position whereupon the operation will again be repeated.
  • FIGs. 53-12 an alternate form of the invention will be described wherein sliding pressers are used and in which the possibilities of selection are the same as in the modification first described, the only difference being that of adapting the selecting principles I employ to sliding pressers rather than to pressers of the first described type.
  • Fig. 9 I have shown a needle cylinder 32, base 33, cam supporting segment 34 and cams 35, 36, 31 and 38 being retained thereon all for the purpose of controlling the action of spring beard needles 39 in a manner corresponding to that in which these same parts were controlled in the first form of the in vention described.
  • Pressers 40 are so constructed that they seat in the same slots in which the needles are guided, these pressers being adapted to slide in the slots and upon the needles.
  • Each presser has a butt 4
  • Another butt 43 is provided for engagement with cams 44 for purposes of returning the pressers to a lower non-selected position whenever they have been selected and raised to press beards on their respective needles.
  • Sinkers 45 are retained within a movable sinker ring 46' driven by the cylinder and bearing in sinker head 46 and are controlled by means of suitable cams in the cap 41. This sinker head and cap are maintained in proper position by supporting columns 48. Brackets 49 are secured to. the segments 34 at each of the knitting stations and carry selecting units herein designated by numeral 50, these selecting units being similar in form and function to those which have been described relative to control of the rocking pressers.
  • These units 50 have a series of plungers which are preferably of the same construction as plungers 3
  • Cams 52 are provided, one for each selecting unit, and are of such a construction that they will raise selected plungers by means of butts 4
  • Each cam 52 is mounted for swinging movement so that in the event of any butt 4
  • These cams 52 are preferably of the same type as have been described and claimed in applicant's c0- pending application 56,991 but of proper contour to control beard pressing. Of course, slight modifications of the structure shown may be resorted to without departing from the spirit of the invention.
  • both forms of the invention herein disclosed provide means for selecting pressers for knitting or failing to select certain pressers to form tuck stitches in a fabric, which selecting means performs its function entirely independent of other separate, positively acting means which causes the pressers to go through the necessary movements incidental to pressing of beards. While stages of selection have been indicated, I am not to be limited to any particular number of butts or steps since the number might be greatly increased without detracting from the efficiency of the construction herein shown'either regarding selection or the pressing function both of which are performed entirely independent of one another.
  • a presser for pressing beards of spring beard needles including an upper portion for engagement with needle beards and a shank portion about which the entire presser is to be rocked, said shank portion also being provided With a series of removable selecting butts for raising the same and a butt for engagement with a fixed cam to return the presser to a non-selected position after being raised by said selecting butts.
  • a presser adapted to function with spring beard needles including an upper portion provided for engagement with needle beards and a shank portion flattened at one side for sliding vertically upon the shank of a cooperating needle but capable of being rocked about one extent of said flattened portion, a series of removable selecting butts and a butt for engagement with a fixed cam by means of which the presser is to be returned to initial position after being engaged by selecting means functioning upon said selecting butts.
  • spring beard needles and pressers cooperating therewith, said pressers being provided with a series of selecting butts, a single butt for returning said pressers to lowermost position, and an upper portion one side of which is adapted to engage needle beards and the other side of which is adapted to contact a presser cam, a presser cam located above the normal pathway through which the upper portion of said pressers travel, a series of selecting instrumentalities for engagement with said selecting butts for raising pressers so that the upper ends thereof will engage said presser cam and a fixed cam for engagement with said single butt for returning raised pressers to their lowermost position.
  • the combination of spring beard needles and cooperating pressers said pressers being provided with removable butts determining a plurality of selections for causing them to engage or not to engage and presstheir respective needle beards, a series of selecting instrumentalities capable of functioning upon said presser butts and moving pressers longitudinally, said instrumentalities being manually movable from one position to another and being held in either position.
  • each presser has another butt positioned above said selecting butts and cams are provided at each feeding station about the machine, said cams functioning upon selected pressers through said butts to return each selected presser to its non-selected position.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US83322A 1935-07-15 1936-06-03 Spring needle knitting machine Expired - Lifetime US2123535A (en)

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Application Number Priority Date Filing Date Title
CA2123535X 1935-07-15

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US2123535A true US2123535A (en) 1938-07-12

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US83322A Expired - Lifetime US2123535A (en) 1935-07-15 1936-06-03 Spring needle knitting machine

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US (1) US2123535A (de)
DE (1) DE678697C (de)
FR (1) FR809387A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008860B (de) * 1953-04-14 1957-05-23 Rund Und Flachstrickmaschb Veb Rundstrickmaschine
DE1158201B (de) * 1958-06-14 1963-11-28 Marcella Sessa Moretta Strumpfrundstrickmaschine mit Spitzennadeln, Pressen und Abschlagplatinen

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FR809387A (fr) 1937-03-02
DE678697C (de) 1939-07-20

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