US3762185A - Bobbin crafting and thread feeding device for circular knitting machines - Google Patents

Bobbin crafting and thread feeding device for circular knitting machines Download PDF

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Publication number
US3762185A
US3762185A US00123658A US3762185DA US3762185A US 3762185 A US3762185 A US 3762185A US 00123658 A US00123658 A US 00123658A US 3762185D A US3762185D A US 3762185DA US 3762185 A US3762185 A US 3762185A
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US
United States
Prior art keywords
thread
bobbin
knitting machine
grating
feeder
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
US00123658A
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English (en)
Inventor
W Jansch
G 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.)
Framo Morat GmbH and Co KG
Original Assignee
Franz Morat GmbH
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Filing date
Publication date
Application filed by Franz Morat GmbH filed Critical Franz Morat GmbH
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Publication of US3762185A publication Critical patent/US3762185A/en
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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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B3/00—Hand tools or implements

Definitions

  • ABSTRACT For use in a knitting machine having at least one thread brake for every thread pulled off a bobbin means and non-positive thread feeder means, a bobbin grating having housed therein a thread feeder device associated with every non-positive thread, said thread feeder device transporting the thread with at least the same speed as the associated thread feeder means on said knitting machine.
  • This invention relates to knitting machines. More particularly, this invention relates to spool or bobbin gratings or frames for knitting machines having thread feeder means and at least one thread brake for eachof the threads pulled off a bobbin or a pair of bobbins.
  • an additional thread feeder means housed in the bobbin grating that is associated with every thread and this means transports the thread with at least the same speed as the corresponding thread feeder device on the knitting machine.
  • the invention offers the considerable advantage that the thread tension on the way between the bobbin grating and the knitting machine is almost reduced to zero tension or there is attained a situation in which the thread will sag in this area so that a thread reserve is formed.
  • the thread tension is essentially the same at all inlet or feed-in points leading to the knitting machinewhen the threads have to cover different long distances so that one can adjust the thread tensions at all knitting points by means of the thread brakes and feeder means arranged on the knitting machine.
  • the threads are transported from the thread feeder devices of the bobbin grating frame and the knitting machine with slippage.
  • the feeder devices are used as shown in US. Pat. No. 3,093,330, according to which the feeder element is a cylinder that comes in the form of a rotor of an electric motor.
  • the feeder devices in the bobbin grating will preferably transport faster than the feeder devices on the knitting machine so that the threads can be drawn off out of a tensionfree or quiet zone by the feeder devices of the knitting machine.
  • the thread reserve which is formed in the area between the bobbin grating and the knitting machine is best made so large that any desired pattern and/or binding can be made.
  • the invention When the invention is used on a circular knitting machine it is preferable to provide two bobbin grating segments arranged diametrally with respect to the circular knitting machine. These segments, in each case, carry half of the bobbins or bobbin pairs required for all feeder devices, although one can also provide more than two bobbin grating segments. In every case, however, it is advantageous to arrange the bobbin gratings at such a distance from the circumference of the knitting machine and at such a height that the operator can work unhindered among the thread-screen formed between the bobbin grating and the knitting machine.
  • FIG. 1 is a side view of a bobbin grating for a circular knitting machine illustrated up to the center axis in accordance with this invention.
  • FIG. 2 is a schematic top view upon two bobbin grating segments which are arranged to the right and to the left of a 24-system circular knitting machine in accordance with this invention.
  • FIG. 1 four rows of bobbins I, la, 2, 20 arranged under each other in a bobbin frame or grating 15.
  • the end of the thread 3 which constitutes the wound body of bobbin 1 or 2 is tiedtogether with the beginning of the wound body of bobbin 1a or 2a so that, after bobbin 1 or 2 has run out, a new bobbin can be put on and the beginning of the thread of that bobbin is tied together with the end of the thread of bobbin la or 2a, etc. This guarantees uninterrupted thread supply to the knitting points.
  • Threads 3 run through eyes 4, 4a; thread brakes 5,
  • thread guards 6, 6a thread eyes 7, 711; via thread feeder devices 8, 8a; through thread eyes 9, 9a; and thread guide or diversion points 10.
  • the threads are guided through thread eyes 11, which are attached to the circular knitting machine 20, and from these eyes they are guided to the thread feeder devices 12 of the circular knitting machine 20 and via thread brakes 13 to the knitting points 14.
  • the thread brakes 13 can also be arranged in front of the thread feeder device 12.
  • FIG. 2 is a schematic top view of two bobbin frame segments 15 and which are arranged to the left and to the right at the proper distance from the circular knitting machine 20. It is, for example, assumed .that
  • the circular knitting machine 20 has 24 systems and 24 thread feeder devices 12.
  • the bobbin gratings l5 and 15a each have 12 bobbins I and 2, respectively, bobbin pairs 1, la and 2, 20, whereby, according to FIG. 2, each grating consists of six bobbin pairs.
  • All thread feeder devides 8, 8a, and 12 may be non-positive thread feeders as feeder rollers in the example described and the thread is laid around them fully or partially and these rollers rotate at a considerably higher rpm than the thread speed, that is, they make sure that the thread will be transported with slippage.
  • a thread reserve is created by virtue of the fact that the circumferential speed of the feeder rollers 8, 8a in the bobbin grating is selected greater than thatof the feeder rollers of the circular knitting machine 20.
  • a bobbin grating spaced from said knitting machine comprising a seond non-positive thread feeder device associated with every thread, said second feeder device trasnporting the thread with at least the same speed as the associated first thread feeder means on said knitting machine; a thread brake for every thread in said bobbin grating the thread brakes in said bobbin being disposed in front of said second feeder devices; said bobbin grating having two segments arranged on two sides diametrically opposite said circular knitting machine, and with each of said segments carrying half of all bobbins; whereby the thread tension on the way between the bobbin grating and the knitting machine is substantially reduced and the thread tension is essentially the same at all feed-in points leading to the knitting machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US00123658A 1970-03-17 1971-03-12 Bobbin crafting and thread feeding device for circular knitting machines Expired - Lifetime US3762185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702012617 DE2012617A1 (de) 1970-03-17 1970-03-17 Spulengatter in Verbindung mit einer Rundstrickmaschine, die fur jede Faden zuführung eine Fadenliefervorrichtung hat

Publications (1)

Publication Number Publication Date
US3762185A true US3762185A (en) 1973-10-02

Family

ID=5765325

Family Applications (1)

Application Number Title Priority Date Filing Date
US00123658A Expired - Lifetime US3762185A (en) 1970-03-17 1971-03-12 Bobbin crafting and thread feeding device for circular knitting machines

Country Status (10)

Country Link
US (1) US3762185A (cs)
AT (1) AT332517B (cs)
BE (1) BE764413A (cs)
CH (1) CH523999A (cs)
CS (1) CS173578B2 (cs)
DE (1) DE2012617A1 (cs)
ES (1) ES389662A1 (cs)
FR (1) FR2084736A5 (cs)
GB (1) GB1343914A (cs)
NL (1) NL7103029A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905210A (en) * 1973-10-03 1975-09-16 Deering Milliken Res Corp Slidably mounted yarn support member for a knitting machine
US8371145B1 (en) * 2011-12-20 2013-02-12 Pai Lung Machinery Mill Co., Ltd. Yarn conveying system for circular knitting machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625755B1 (fr) * 1988-01-11 1990-08-17 Inst Textile De France Cantre perfectionne pour metier a tricoter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB789822A (en) * 1955-04-14 1958-01-29 Mellor Bromley & Co Ltd Improvements in yarn feeding devices for knitting machines
GB872158A (en) * 1957-09-05 1961-07-05 Morat Franz Improvements relating to thread-delivery arrangements
US3093330A (en) * 1960-04-11 1963-06-11 Morat Gmbh Franz Feeding mechanism for yarn winding and processing machines
US3461691A (en) * 1965-06-04 1969-08-19 Stibbe G & Co Ltd Multifeed circular knitting machines
US3490710A (en) * 1967-07-31 1970-01-20 Fouquet Werk Frauz & Planck Automatic thread delivery device for textile machines
US3542309A (en) * 1969-01-30 1970-11-24 Logan Inc Jonathan Textile yarn storage and advancing apparatus and method
US3589146A (en) * 1968-03-22 1971-06-29 Morat Gmbh Franz Bobbin structure for circular knitting machines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB789822A (en) * 1955-04-14 1958-01-29 Mellor Bromley & Co Ltd Improvements in yarn feeding devices for knitting machines
GB872158A (en) * 1957-09-05 1961-07-05 Morat Franz Improvements relating to thread-delivery arrangements
US3093330A (en) * 1960-04-11 1963-06-11 Morat Gmbh Franz Feeding mechanism for yarn winding and processing machines
US3461691A (en) * 1965-06-04 1969-08-19 Stibbe G & Co Ltd Multifeed circular knitting machines
US3490710A (en) * 1967-07-31 1970-01-20 Fouquet Werk Frauz & Planck Automatic thread delivery device for textile machines
US3589146A (en) * 1968-03-22 1971-06-29 Morat Gmbh Franz Bobbin structure for circular knitting machines
US3542309A (en) * 1969-01-30 1970-11-24 Logan Inc Jonathan Textile yarn storage and advancing apparatus and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Knitted Outerwear Times, March 31, 1969, Vol. 38, No. 13, pps. 43, 44, 45. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905210A (en) * 1973-10-03 1975-09-16 Deering Milliken Res Corp Slidably mounted yarn support member for a knitting machine
US8371145B1 (en) * 2011-12-20 2013-02-12 Pai Lung Machinery Mill Co., Ltd. Yarn conveying system for circular knitting machines

Also Published As

Publication number Publication date
NL7103029A (cs) 1971-09-21
AT332517B (de) 1976-10-11
DE2012617A1 (de) 1971-10-07
CS173578B2 (cs) 1977-02-28
ATA182771A (de) 1976-01-15
BE764413A (fr) 1971-09-17
ES389662A1 (es) 1974-08-16
GB1343914A (en) 1974-01-16
CH523999A (de) 1972-06-15
FR2084736A5 (cs) 1971-12-17

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