US3589146A - Bobbin structure for circular knitting machines - Google Patents

Bobbin structure for circular knitting machines Download PDF

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Publication number
US3589146A
US3589146A US809786A US3589146DA US3589146A US 3589146 A US3589146 A US 3589146A US 809786 A US809786 A US 809786A US 3589146D A US3589146D A US 3589146DA US 3589146 A US3589146 A US 3589146A
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United States
Prior art keywords
bobbin
knitting machine
supporting structure
secured
carrier
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Expired - Lifetime
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US809786A
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English (en)
Inventor
Richard Schmidt
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.)
Franz Morat GmbH
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Franz Morat GmbH
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Filing date
Publication date
Priority claimed from DE19681760016 external-priority patent/DE1760016C3/de
Application filed by Franz Morat GmbH filed Critical Franz Morat GmbH
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Publication of US3589146A publication Critical patent/US3589146A/en
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
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/40—Holders or supports for thread packages
    • D04B15/42—Frames for assemblies of two or more reels

Definitions

  • Circular knitting machines are generally provided with a bobbin supporting structure mounted on a central pillar projecting upwards from the top of the machine.
  • the bobbins are located at such a height that they are difficult to reach for operators, and particularly for short operators.
  • a bobbin supporting structure is placed on the floor adjacent the knitting machine which has the advantage that the bobbins can be mounted at an accessible level, and that the yarns can be guided from the bobbins over the head of the operator to the feeding devices by which the knitting systems of the machine are supplied with yarns.
  • the disadvantage of this construction is that the yarns which are singly guided to the respective knitting stations form a dense sheet and become entangled with each other. Furthermore, the paths of the several yarns are of different lengths so that the tensions are different in yarns associated with different knitting systems or stations so that the loops formed at each knitting station are different.
  • Another object of the invention is to provide a bobbin supporting structure whose height can be adjusted so that the bobbins are accessible also to short operators.
  • Another object of the invention is to provide a bobbin supporting structure by which the bobbins are supported in a position directly overhead an operator standing adjacent the machine.
  • Another object of the invention is to provide a plurality of carrier means for the bobbins, each of which is mounted on the top of the knitting machine for independent vertical adjustment, and carries a plurality of bobbins.
  • the present invention relates to an improvement of the bobbin supporting structure of a circular knitting machine.
  • One embodiment of the invention comprises supporting means preferably including a plurality of vertical bolts spaced in circumferential direction and mounted on the top portion of the knitting machine; carrier means, preferably including a plurality of carriers mounted on the bolts of the supporting means for up-and-down movement between a plurality of adjusted positions of difierent height; and bobbin supports mounted on the carrier means circumferentially spaced about the knitting machine.
  • Bobbins mounted on the bobbin supports are disposed at different heights in the adjusted position of the carrier means, and can be placed within the reach of operators of different heights.
  • the carrier means may be mounted for vertical movement between adjusted positions on a central vertical pillar.
  • the bobbin supporting structure is to be used with a circular knitting machine having a great number of knitting stations, requiring twice as many bobbins than knitting stations, the weight may become too great for a single-supporting pillar, and a plurality of circumferentially spaced upright supporting bolts is provided, each of which supports a carrier means for independent movement between adjusted positions of different heights, a plurality of bobbins being supported on each carrier means.
  • each carrier with a sleeve mounted on a support bolt for vertical sliding movement, and to secure the sleeve in an adjusted position by a clamping screw.
  • each carrier In order to mount a plurality of bobbins in circumferentially spaced positions at the outer end of each carrier, each carrier .includes a radial arm at the outer end of which a part-circular bar is provided.
  • the bars are arranged in end-to-end relationship and form a circle concentric with the axis of the knitting machine.
  • Each bar has a plurality of bobbin supports, projecting from the same alternately in inward and outward radial directions, and having mounting means for the bobbins at the free ends thereof. It is advantageous to use carrier bars having a circular cross section so that the bobbin supports can be mounted on the same angularly adjustable.
  • each carrier has a downwardly and outwardly extending low arm on which the carrier bars are mounted, and an upwardly and outwardly extending arm.
  • the outer ends of the upper arms are preferably connected by a circular bar, from which supports for yarn guides project radially outward.
  • Each yarn guide, and preferably also a breakage detector, is associated with one of the bobbins so that the yarns are guided from the bobbins up to the yarn guides, respectively, and down from the same to the knitting machine above the level at which the bobbins are located.
  • FIG. 1 is a fragmentary side elevation, partially in section, illustrating a circular knitting machine provided with an embodiment of the bobbin supporting structure of the invention.
  • FIG. 2 is a fragmentary schematic plan view of the embodiment of FIG. 1 with some parts omitted for the sake of clarity.
  • a circular knitting machine 20 is shown whose construction is not an object of the present invention.
  • a stationary cover plate 3 is provided which is fixedly secured to the supporting structure of the knitting machine 20.
  • the knitting machine 20 has 48 knitting stations 15. Each knitting station requires two bobbins 1a and 1b whose yarns are connected with each other, one of the bobbins supplying the yarn to the knitting station, and the other serving as a spare. Consequently, the bobbin supporting structure of the machine has to support 96 bobbins.
  • the illustrated embodiment Due to the high weight of the yarn packages on the 96 bobbins, to which the weight of a bobbin supporting structure having required rigidity has to be added, the illustrated embodiment has a plurality of circumferentially spaced upn'ght supporting bolts 2 secured to the top plate 3 upwardly projecting from the same so that the weight is better distributed as compared with a bobbin supporting structure mounted on a single central pillar.
  • each bolt 2 On each bolt 2, a sleeve 4 is mounted for axial sliding movement, and can be secured in several adjusted positions of different height to the respective bolt 2 by a clamping screw 4a.
  • each bolt 2 has a plurality, for example, four annular recesses 2a into which the clamping screw 4a projects, respectively, in the four adjusted positions of the respective sleeve 4.
  • a greater or smaller number of annular recesses 2a can be provided in each support bolt 2.
  • Each carrier includes a low downwardly and radially outwardly projecting arm 5, and an upwardly and radially outwardly projecting arm 10 at whose inner ends the sleeve 4 is secured.
  • a strut 14 connects arms 5 and 10, and horizontal part-circular bars having a square cross section are secured to the outer and upper ends of all arms 10.
  • a horizontal bar 6 of circular cross section is mounted at the end of each arm 5 projecting from the same in opposite circumferential directions, the several bars 6 and 11a being part-circular and disposed in end-to-end relation to form circles about the knitting machine concentric with the axis X-X of the same as best seen in FIG. 2.
  • bobbin supports 7 and 8 are mounted for angular movement about the respective carrier bar 6 by means of bushings 7a, 8a, secured to the inner ends of the respective bobbin supports 7 and 8.
  • Alternating bobbin supports 7 and 8 are of different lengths so that circumferentially adjacent bobbins la and also circumferentially adjacent bobbins lb are staggered in radial direction, permitting the mounting of bobbin supports 8 and 7 in circumferentially adjacent positions.
  • each low arm S'and bar 6 carries l6 bobbins including eight inner bobbins la and eight outer bobbins lb.
  • the ends of the six part-circular carrier bars 6 abut the ends of the adjacent carrier bars 6 so that all six carrier bars 6 form a circle whose center is located in the axis X-X.
  • the annular bar means 11 is composed of a plurality of part-circular bars 11a respectively secured to the upper and outer ends of the arms 10, in the same manner as the low bars 6 are secured to the low arms 5, respectively, as show in FIG. 2.
  • Yarn guides and yarn breakage detectors 13a and 13b are mounted on each rod 12 for guiding yarn from the bobbins la, lb first upwards to the height of the high bar means 11 and of the projecting rods 12, and then inwardly and downwardly to rollers on the machine by which the yarns are guided to the rollers 16 and farther down to the knitting stations 15.
  • a carrier means including a sleeve 4, arms 5 and 10, a part-circular bar 6, a partcircular bar 11a, bobbin supports 7 and 8, rod 12, yarn guide 13a is mounted on each supporting bolt 2 for independent movement in upward or downward direction.
  • each carrier means can be adjusted by moving the respective sleeves 4 up and down on supporting bolts 2, the bobbins la and lb can be placed at different heights overhead of an operator standing adjacent the machine and observing the knitting stations. Consequently, the operator has only to reach up to perform a service operation on the bobbins while observing the operation of the knitting machine. For short operators, the carriers with the bobbins are lowered on supporting bolts 2, whereupon the carriers are secured by clamping screws 4a and clamping sleeves 4 to bolts 2.
  • the angular position of the bobbin supports 7, 8 can be adjusted by turning the bushings 7a, 80 at the inner ends of the same about the horizontal cylindrical carrier bars 6, and securing bushings 7a, 8a by clamping screws 7b, 8b.
  • each bobbin supporting structure In the lowest position of each bobbin supporting structure, as shown in the drawing, the bobbins are located below the level of the top cover 3 of the knitting machine, and only slightly above the knitting stations 15. Consequently, the very short operators can exchange the bobbins without any impairment of the observation of the knitting stations 15, or of the movement of the yarns over rollers 16 to the knitting stations 15.
  • a bobbin supporting structure comprising a plurality of circumferentially spaced supporting means fixedly mounted on said knitting machine; a plurality of carrier means mounted on said supporting means, respectively, for independent up-and-down movement between a plurality of adjusted positions of different height, each carrier means including arm means projecting radially outward from the respective supporting means, a horizontal bar secured to the outer end of said arm means and surrounding part of said knitting machine, and at least one bobbin support on each bar; said bars being disposed in end-to-end relation to form substantially a horizontal circle surrounding said knitting machine and having a center located in said main axis; and attaching means for securing each carrier means in said adjusted positions to the respective supporting means so that the height of each carrier means can be adjusted to be within the reach of an operator.
  • Bobbin supporting structure as claimed in claim 1 wherein said supporting means include vertical bolt means secured to the top of said knitting machine; wherein said carrier means include sleeve means mounted for sliding up-anddown movement on said bolt means, and wherein said attaching means include clamping screw means passing through said sleeve means and engaging said bolt means for securing said carrier means and sleeve means in said adjusted positions to said bolt means.
  • each said carrier means includes second high horizontal bar means at the radially outer end thereof together surrounding said knitting machine; and comprising yarn guide means mounted on said second high bar means for guiding yarn from bobbins on said bobbin supports radially inward first up and then down to said knitting machine.
  • Bobbin supporting structure as claimed in claim 1 wherein said supporting means comprise upright bolts secured to the top of said knitting machine circumferentially spaced about the same; wherein said radial arm means have inner ends mounted on said bolts, respectively, for up-and-down movement between said adjusted positions, said attaching means securing said radial arm means in said adjusted positions to said bolts; and wherein sets of circumferentially spaced bobbin supports are secured to said bars, respectively.
  • each bobbin support includes a bushing slidingly surrounding the respective bar and located at the inner end of the respective bobbin support, means for attaching each bushing in angularly adjusted positions to the respective bar, and bobbin holders secured to the outer ends of said bobbin supports, respectively.
  • each said horizontal bar has a plurality of bobbin supports alternately projecting in outward and inward radial directions from the respective bar.
  • each supporting means comprises an upright guide means secured to the top of said knitting machine; wherein said carrier means include sleeves mounted on said guide means, respectively, for up-and-down movement between said adjusted positions, and an upper arm radially projecting outward from said sleeve; wherein said arm means includes a low arm with an inner end secured to said sleeve; wherein said carrier means includes high horizontal bars respectively secured to the outer ends of said upper arms in end-to-end relation and forming substantially a circle having its center in said main wherein each carrier means includes a strut connecting said upper arm with said low arm, and a rod radially projecting from said high horizontal bar and supporting at least one of said yarn guides.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
US809786A 1968-03-22 1969-03-24 Bobbin structure for circular knitting machines Expired - Lifetime US3589146A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681760016 DE1760016C3 (de) 1968-03-22 Spulenträgeranordnung für eine vielsystemige Rundstrickmaschine

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US3589146A true US3589146A (en) 1971-06-29

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US809786A Expired - Lifetime US3589146A (en) 1968-03-22 1969-03-24 Bobbin structure for circular knitting machines

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US (1) US3589146A (en))
AT (1) AT309658B (en))
BE (1) BE721186A (en))
CH (1) CH471922A (en))
FR (1) FR1593624A (en))
GB (1) GB1160050A (en))
NL (1) NL6810348A (en))

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678713A (en) * 1969-07-29 1972-07-25 Inst Textile Tech Creel structure for circular knitting machines
US3762185A (en) * 1970-03-17 1973-10-02 Morat Gmbh Franz Bobbin crafting and thread feeding device for circular knitting machines
US3805556A (en) * 1971-09-10 1974-04-23 Fouquet Werk Frauz & Planck Circular knitting machine with height-adjustable spool carrier
US4043154A (en) * 1974-08-07 1977-08-23 Wilh. Bleyle Kg Spool rack
US4261532A (en) * 1979-10-10 1981-04-14 Hanes Corporation Bobbin carrier
US4512373A (en) * 1983-05-09 1985-04-23 Barber-Colman Company Feeding and guiding means for triaxial fabric forming machine
US5513503A (en) * 1993-08-02 1996-05-07 Guilford Mills, Inc. Strand guiding device for circular knitting machines
US7310976B1 (en) * 2006-10-04 2007-12-25 Monarch Knitting Machinery Corp. Circular knitting-machine chassis with cantilever support
CN102733062A (zh) * 2011-04-13 2012-10-17 山德霓股份公司 具有改进的纺织头可接近性的圆型针织机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3049593C2 (de) * 1980-12-31 1982-12-16 Schiesser Ag, 7760 Radolfzell Fadenzuführung für Rundstrickmaschinen
CN104060382B (zh) * 2014-07-09 2015-10-28 陈斌 双面小圆机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US116677A (en) * 1871-07-04 Improvement in stop-motions and creel-stands for knitting-machines
US1260069A (en) * 1917-12-01 1918-03-19 Albert H Sawtell Bobbin-holder.
GB756115A (en) * 1953-12-04 1956-08-29 Vyzk Ustav Tvarecich Stroju Bobbin support in circular knitting machines
GB1006222A (en) * 1962-12-11 1965-09-29 Lebocey & Cie Georges Improved yarn separator for knitting machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US116677A (en) * 1871-07-04 Improvement in stop-motions and creel-stands for knitting-machines
US1260069A (en) * 1917-12-01 1918-03-19 Albert H Sawtell Bobbin-holder.
GB756115A (en) * 1953-12-04 1956-08-29 Vyzk Ustav Tvarecich Stroju Bobbin support in circular knitting machines
GB1006222A (en) * 1962-12-11 1965-09-29 Lebocey & Cie Georges Improved yarn separator for knitting machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678713A (en) * 1969-07-29 1972-07-25 Inst Textile Tech Creel structure for circular knitting machines
US3762185A (en) * 1970-03-17 1973-10-02 Morat Gmbh Franz Bobbin crafting and thread feeding device for circular knitting machines
US3805556A (en) * 1971-09-10 1974-04-23 Fouquet Werk Frauz & Planck Circular knitting machine with height-adjustable spool carrier
US4043154A (en) * 1974-08-07 1977-08-23 Wilh. Bleyle Kg Spool rack
US4261532A (en) * 1979-10-10 1981-04-14 Hanes Corporation Bobbin carrier
US4512373A (en) * 1983-05-09 1985-04-23 Barber-Colman Company Feeding and guiding means for triaxial fabric forming machine
US5513503A (en) * 1993-08-02 1996-05-07 Guilford Mills, Inc. Strand guiding device for circular knitting machines
US7310976B1 (en) * 2006-10-04 2007-12-25 Monarch Knitting Machinery Corp. Circular knitting-machine chassis with cantilever support
CN102733062A (zh) * 2011-04-13 2012-10-17 山德霓股份公司 具有改进的纺织头可接近性的圆型针织机
CN102733062B (zh) * 2011-04-13 2016-02-03 山德霓股份公司 具有改进的纺织头可接近性的圆型针织机

Also Published As

Publication number Publication date
FR1593624A (en)) 1970-06-01
GB1160050A (en) 1969-07-30
BE721186A (en)) 1969-03-03
AT309658B (de) 1973-08-27
DE1760016B2 (de) 1975-11-13
CH471922A (de) 1969-04-30
NL6810348A (en)) 1969-09-24
DE1760016A1 (de) 1971-12-02

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