US3090215A - Device for guided feeding of yarn to knitting machines - Google Patents
Device for guided feeding of yarn to knitting machines Download PDFInfo
- Publication number
- US3090215A US3090215A US85646A US8564661A US3090215A US 3090215 A US3090215 A US 3090215A US 85646 A US85646 A US 85646A US 8564661 A US8564661 A US 8564661A US 3090215 A US3090215 A US 3090215A
- Authority
- US
- United States
- Prior art keywords
- yarn
- feeding
- tape
- rollers
- knitting machines
- 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
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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
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
-
- 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
- D04B15/48—Thread-feeding devices
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/062—Joints having intermediate beams
Definitions
- Multifeed knitting machines e.g. interlock and rib machines are normally provided with yarn feeding devices of some kind.
- the most common type of such feeding devices comprises radially arranged pairs of conical gear wheels which are rotated at a suitable speed. The yarn is fed between the gear wheeals in the different pairs of wheels in such a way that the yarn length required for the stitch length at the different feeding stations is fed automatically.
- a rather high pressure is required for an effective control of the feed of yarn by means of two wheels of hard material pressed against each other since the contact surface in this case is very small.
- Such a pressure isnot suitable for many kinds of fibers and for this reason the art has hithereto been forced to use an elastic material on the rollers which Wears rather fast.
- the present invention has for its object a device for positively feeding yarn to knitting machines.
- the device comprises a single feeding tape driven by the machine and running over a number of rollers corresponding to the number of yarn packages in the machine, and means situated in the vicinity of each of the rollers for guiding the yarn for the different yarn packages between said tape and the mantle surface of the roller in question.
- the feeding tape which preferably comprises a steel tape having a thickness of is driven at the desired speed by the knitting machine and the yarn is fed between the tape and the roller in question in such a way that it is fed to the machine without sliding over the surface of the rollers.
- a good but yet nondamaging hold of the yarn is obtained which does not abrade or flatten the fibers since the tape fits itself smoothly and elastically to the peripheral surface of the roller. Due to the large contact surface between the roller and the tape the pressure used can be rather small.
- FIG. 1 is a side elevation view of the upper portion of a knitting machine having a feeding device according to the invention
- FIG. 2 is a plan view of the same
- FIG. 3 is a plan view, on an enlarged scale, of a part of the apparatus of FIGS. 1 and 2;
- FIG. 4 is an elevation view of the portion of the apparatus shown in FIG. 3.
- the knitting machine has twelve feeds. From the frame of the machine two rods I extend upwardly and have brackets 1a thereon carrying a holder for the yarn packages comprising twelve arms 3, FIG. 1.
- a tube 5 is arranged in the center of the bracket In, said tube 5 carrying on rods 6 a plate 7 having radially directed arms 7a thereon.
- the arms 7a have upright rods 8 on the ends thereof onwhich a ring 9 is mounted.
- Rollers 11 are rotatably mounted on pivots 10 directed vertically downwards from the ends of arms 7a.
- the rollers 11 are provided with side flanges and are present in a number corresponding to the number of yarn packages 4. Over the rollers 11 and between their side flanges there runs an endless tape 12 which is driven e.g. by a centrally arranged driving pulley 13. The latter is attached to the upper end of a shaft 14 which is journalled in the tube 5. The shaft 14 is driven from the knitting machine by means of sprockets 15 and 16 and a chain 17. The tape is driven in the direction indicated by the arrows 18. On either side of each roller 11, and positioned inwardly of the tape 12 are mounted thread guides 19, 20 (only two guides are shown in FIG.
- a feeding device of this kind costs only about half as much as previously known feeding devices to manufacture. It always feeds exactly the same quantity of yarn to the feeds and it has a practically unlimited durability.
- the driving force required for this kind of a feeding device is less than for the old types. Due to the fact that the tape and the rollers, which preferably are manufactured from plastics, are light in Weight, it is easy to stop the knitting machine when different disturbances occur.
- an endless feeding tape adapted to be driven by the knitting machine, a plurality of rollers over which said feeding tape runs the number of rollers corresponding to the number of yarn packages in the knitting machine, and means situated in the vicinity of each one of said rollers for guiding the yarn from the difierent yarn packages in between the tape and the surface of the roller in question.
- an endless feeding tape adapted to be driven by the knitting machine, a plurality of rollers over which said feeding tape runs the number of rollers corresponding to the number of yarn packages in the knitting machine, and means situated in the vicinity of each one of said rollers for guiding the yarn from the different yarn packages in between the tape and the surface of the roller in question.
- rollers being arranged in a circle around the vertical central axis of the knitting machine.
- an endless feeding tape adapted to be driven by the knitting machine, a plurality of rollers over which said feeding tape runs the number of rollers corresponding to the number of yarn packages in the knitting machine, and means situated in the vicinity of each one of said rollers for guiding the yarn from the different yarn packages in between the tape and the surface of the roller in question, said rollers being arranged in a circle around the vertical central axis of the knitting machine and a central wheel adapted to be driven by the machine around which said endless feeding tape is passed in driving engagement with said central wheel.
Description
DEVICE FOR GUIDED FEEDING OF YARN TO KNITTING MACHINES- Filed Jan. 30, 1961 2 Sheets-Sheet 1 I! l l- |'|1.|\'||., I II Ill I ,I la, 15 21 l 2 1 1| ,r-fi
INVENTOR.
KARL ISAC JOEL ROSE/N ATTOR N EYS K. x. J. RosN DEVICE FOR GUIDED FEEDING OF YARN TD KNITTING MACHINES Filed Jan. 30, 1961 2 Sheets-Sheet 2 Fig. 4
Fig. 3
KARL ISAC JOEL R055 IN V EN TOR. BY Mm, a 4M Arm/wars United States Patent 3 090 215 DEVICE FOR GUBdED FEEDING OF YARN TO KNITTING MACHINES Multifeed knitting machines, e.g. interlock and rib machines are normally provided with yarn feeding devices of some kind. The most common type of such feeding devices comprises radially arranged pairs of conical gear wheels which are rotated at a suitable speed. The yarn is fed between the gear wheeals in the different pairs of wheels in such a way that the yarn length required for the stitch length at the different feeding stations is fed automatically.
There exist of course other kinds of feeding devices but with the exception of the Hatra method of using a capstan on a cylindrical rubber Wheel, they all feed the length of yarn according to the stitch length.
However, it has been recognized that the method of automatically feeding varying amounts of yarn demanded at the different feeding stations has important drawbacks. Instead of providing the feeding stations with the amount of yarn required by their adjustment (the stitch length) it has been attempted to provide the feeding stations with a defined length of yarn per stitch or each revolution of the machine. It has turned out that the stitch length on the different feeds can advantageously be adjusted relative to the feeding of yarn.
One method of obtaining a positive feed is recited e.g. in the U.S. Patents Nos. 1,097,115 and 1,970,242. In practical use, however, such feeding involves certain difliculties. In a surprisingly short time the yarn forms grooves in the rubber cover on the wheels between which the yarn has been clamped or around which the yarn is laid.
A rather high pressure is required for an effective control of the feed of yarn by means of two wheels of hard material pressed against each other since the contact surface in this case is very small. Such a pressure isnot suitable for many kinds of fibers and for this reason the art has hithereto been forced to use an elastic material on the rollers which Wears rather fast.
The present invention has for its object a device for positively feeding yarn to knitting machines. According to the invention, the device comprises a single feeding tape driven by the machine and running over a number of rollers corresponding to the number of yarn packages in the machine, and means situated in the vicinity of each of the rollers for guiding the yarn for the different yarn packages between said tape and the mantle surface of the roller in question. The feeding tape, which preferably comprises a steel tape having a thickness of is driven at the desired speed by the knitting machine and the yarn is fed between the tape and the roller in question in such a way that it is fed to the machine without sliding over the surface of the rollers. A good but yet nondamaging hold of the yarn is obtained which does not abrade or flatten the fibers since the tape fits itself smoothly and elastically to the peripheral surface of the roller. Due to the large contact surface between the roller and the tape the pressure used can be rather small.
An example of a device in accordance with the invention will now be described with reference to the accompanying, partly diagrammatical drawing. In the drawing:
FIG. 1 is a side elevation view of the upper portion of a knitting machine having a feeding device according to the invention,
FIG. 2 is a plan view of the same,
3,69%,215 Patented May 21, 1963 FIG. 3 is a plan view, on an enlarged scale, of a part of the apparatus of FIGS. 1 and 2; and
FIG. 4 is an elevation view of the portion of the apparatus shown in FIG. 3.
The knitting machine has twelve feeds. From the frame of the machine two rods I extend upwardly and have brackets 1a thereon carrying a holder for the yarn packages comprising twelve arms 3, FIG. 1. A tube 5 is arranged in the center of the bracket In, said tube 5 carrying on rods 6 a plate 7 having radially directed arms 7a thereon. The arms 7a have upright rods 8 on the ends thereof onwhich a ring 9 is mounted. Rollers 11 are rotatably mounted on pivots 10 directed vertically downwards from the ends of arms 7a.
The rollers 11 are provided with side flanges and are present in a number corresponding to the number of yarn packages 4. Over the rollers 11 and between their side flanges there runs an endless tape 12 which is driven e.g. by a centrally arranged driving pulley 13. The latter is attached to the upper end of a shaft 14 which is journalled in the tube 5. The shaft 14 is driven from the knitting machine by means of sprockets 15 and 16 and a chain 17. The tape is driven in the direction indicated by the arrows 18. On either side of each roller 11, and positioned inwardly of the tape 12 are mounted thread guides 19, 20 (only two guides are shown in FIG. 1) or similar means for guiding the yarn 21 from the actual packages 4 in such a way that it passes between the tape and the surface of the rollers 11. When the tape 12 is curved along the surface of each roller, the engagement with the yarn will be effective due to the rather long contact surface and yet will be very smooth. The yarn cannot slip between the rollers and the tape and any risk of flattening or deforming the yarn is eliminated. When the yarn 21 is fed by means of the feeding device it is guided over the ring 9 or in a hook attached to the same before it goes to the feeding station.
A feeding device of this kind costs only about half as much as previously known feeding devices to manufacture. It always feeds exactly the same quantity of yarn to the feeds and it has a practically unlimited durability. The driving force required for this kind of a feeding device is less than for the old types. Due to the fact that the tape and the rollers, which preferably are manufactured from plastics, are light in Weight, it is easy to stop the knitting machine when different disturbances occur.
The present invention has been described in detail for purposes of illustration only and is not intended to be limited by this description or otherwise except as defined in the appended claims. Instead of a steel tape it is possible to use a tape of another material. As an example of such a material there may be mentioned brass or plastics. In particular armed plastics could be used.
What I claim is:
1. In a device for a positive feeding of yarn to knitting machines, an endless feeding tape adapted to be driven by the knitting machine, a plurality of rollers over which said feeding tape runs the number of rollers corresponding to the number of yarn packages in the knitting machine, and means situated in the vicinity of each one of said rollers for guiding the yarn from the difierent yarn packages in between the tape and the surface of the roller in question.
2. In a device for a positive feeding of yarn to knitting machines, an endless feeding tape adapted to be driven by the knitting machine, a plurality of rollers over which said feeding tape runs the number of rollers corresponding to the number of yarn packages in the knitting machine, and means situated in the vicinity of each one of said rollers for guiding the yarn from the different yarn packages in between the tape and the surface of the roller in question.
3 said rollers being arranged in a circle around the vertical central axis of the knitting machine.
3. In a device for a positive feeding of yarn to knitting machines, an endless feeding tape adapted to be driven by the knitting machine, a plurality of rollers over which said feeding tape runs the number of rollers corresponding to the number of yarn packages in the knitting machine, and means situated in the vicinity of each one of said rollers for guiding the yarn from the different yarn packages in between the tape and the surface of the roller in question, said rollers being arranged in a circle around the vertical central axis of the knitting machine and a central wheel adapted to be driven by the machine around which said endless feeding tape is passed in driving engagement with said central wheel.
References Cited in the file of this patent UNITED STATES PATENTS Lawson Feb. 10, 1953 Jackson et al Ian. 10, 196 1 FOREIGN PATENTS France Jan. 2, 1958 France Nov. 16, 1959
Claims (1)
1. IN A DEVICE FOR A POSITIVE FEEDING OF YARN OF KNITTING MACHINES, AN ENDLESS FEEDING TAPE ADAPTED TO BE DRIVEN BY THE KNITTING MACHINE, A PLURALITY OF ROLLERS OVER WHICH SAID FEEDING TAPE RUNS THE NUMBER OF ROLLERS CORRESPONDING TO THE NUMBER OF YARN PACKAGES IN THE KNITTING MACHINE,AND MEANS SITUATED IN THE VICINITY OF EACH ONE OF SAID ROLLERS OF GUIDING THE YARN FROM THE DIFFERENT YARN PACKAGES IN BETWEEN THE TAPE AND THE SURFACE OF THE ROLLER IN QUESTION.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE120060 | 1960-02-08 | ||
DER29611A DE1143294B (en) | 1960-02-08 | 1961-02-06 | Yarn feeder for multi-system circular knitting machines |
Publications (1)
Publication Number | Publication Date |
---|---|
US3090215A true US3090215A (en) | 1963-05-21 |
Family
ID=44544149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US85646A Expired - Lifetime US3090215A (en) | 1960-02-08 | 1961-01-30 | Device for guided feeding of yarn to knitting machines |
Country Status (4)
Country | Link |
---|---|
US (1) | US3090215A (en) |
CH (1) | CH382360A (en) |
DE (1) | DE1143294B (en) |
GB (1) | GB920527A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3124947A (en) * | 1964-03-17 | Positive type feeding apparatus | ||
US3216222A (en) * | 1963-08-16 | 1965-11-09 | Morat Gmbh Franz | Thread transporting apparatus |
US3224229A (en) * | 1963-05-06 | 1965-12-21 | Singer Co | Yarn controlling device for knitting machines |
US3225570A (en) * | 1963-06-27 | 1965-12-28 | Singer Co | Automatic stitch control |
US3241339A (en) * | 1963-10-08 | 1966-03-22 | Fried Benjamin | Yarn tensioning device for knitting machines |
US3243091A (en) * | 1962-03-08 | 1966-03-29 | Rosen Karl Isac Joel | Yarn feeding equipment |
US3243974A (en) * | 1964-08-03 | 1966-04-05 | Cooper S Inc | Strand metering means |
US3263454A (en) * | 1966-08-02 | Method and apparatus for knitting | ||
US3264845A (en) * | 1963-11-22 | 1966-08-09 | Rosen Karl Isac Joel | Device for feeding yarn to multifeed circular knitting machines |
US3366451A (en) * | 1967-01-04 | 1968-01-30 | Dow Chemical Co | Production of magnesium hydroxide |
US3418831A (en) * | 1967-10-27 | 1968-12-31 | Ertle Williamson | Feed control for automatic striper |
US3651668A (en) * | 1970-01-09 | 1972-03-28 | David Pernick | Yarn feeding means for knitting machines |
US3854307A (en) * | 1973-04-16 | 1974-12-17 | Wesco Industries Corp | Drive means for positive yarn feeding devices mounted on a circular knitting machine |
US3855821A (en) * | 1973-01-15 | 1974-12-24 | Vyzk A Vyvojory Ustav Z Vseob | Tape-positive yarn feed |
US3922887A (en) * | 1974-09-13 | 1975-12-02 | Singer Co | Positive yarn feeding system for circular knitting machine |
DE3205450A1 (en) * | 1981-02-17 | 1982-09-09 | Precision Fukuhara Works Ltd., Kobe | Automatic positively controlled yarn-feed device for use in a knitting machine |
US10119274B2 (en) * | 2013-11-28 | 2018-11-06 | Maurer Söhne Engineering GmbH & Co. KG | Bridging device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3931997C2 (en) * | 1989-09-26 | 1998-08-27 | Sipra Patent Beteiligung | Drive roller for a thread delivery device |
DE19733263A1 (en) * | 1997-08-01 | 1999-02-04 | Sipra Patent Beteiligung | Thread delivery device on a textile machine and belt tensioning device therefor |
DE19814927A1 (en) | 1998-04-03 | 1999-10-07 | Sipra Patent Beteiligung | Drive roller for drive belt at yarn feed for circular knitter |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2627738A (en) * | 1953-02-10 | Elastic yarn feeding means for | ||
FR1149841A (en) * | 1956-05-22 | 1958-01-02 | Roannais Constr Textiles | Thread delivery device for textile machines |
FR1195159A (en) * | 1958-04-29 | 1959-11-16 | Roannais Constr Textiles | Thread delivery device for textile machines |
US2967413A (en) * | 1957-12-23 | 1961-01-10 | Mellar Bromley & Co Ltd | Yarn feeding and controlling means for knitting machines |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE569670A (en) * | 1957-09-05 |
-
1961
- 1961-01-30 US US85646A patent/US3090215A/en not_active Expired - Lifetime
- 1961-02-06 DE DER29611A patent/DE1143294B/en active Pending
- 1961-02-06 CH CH140661A patent/CH382360A/en unknown
- 1961-02-08 GB GB4762/61A patent/GB920527A/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2627738A (en) * | 1953-02-10 | Elastic yarn feeding means for | ||
FR1149841A (en) * | 1956-05-22 | 1958-01-02 | Roannais Constr Textiles | Thread delivery device for textile machines |
US2967413A (en) * | 1957-12-23 | 1961-01-10 | Mellar Bromley & Co Ltd | Yarn feeding and controlling means for knitting machines |
FR1195159A (en) * | 1958-04-29 | 1959-11-16 | Roannais Constr Textiles | Thread delivery device for textile machines |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3263454A (en) * | 1966-08-02 | Method and apparatus for knitting | ||
US3124947A (en) * | 1964-03-17 | Positive type feeding apparatus | ||
US3243091A (en) * | 1962-03-08 | 1966-03-29 | Rosen Karl Isac Joel | Yarn feeding equipment |
US3224229A (en) * | 1963-05-06 | 1965-12-21 | Singer Co | Yarn controlling device for knitting machines |
US3225570A (en) * | 1963-06-27 | 1965-12-28 | Singer Co | Automatic stitch control |
US3216222A (en) * | 1963-08-16 | 1965-11-09 | Morat Gmbh Franz | Thread transporting apparatus |
US3241339A (en) * | 1963-10-08 | 1966-03-22 | Fried Benjamin | Yarn tensioning device for knitting machines |
US3264845A (en) * | 1963-11-22 | 1966-08-09 | Rosen Karl Isac Joel | Device for feeding yarn to multifeed circular knitting machines |
US3243974A (en) * | 1964-08-03 | 1966-04-05 | Cooper S Inc | Strand metering means |
US3366451A (en) * | 1967-01-04 | 1968-01-30 | Dow Chemical Co | Production of magnesium hydroxide |
US3418831A (en) * | 1967-10-27 | 1968-12-31 | Ertle Williamson | Feed control for automatic striper |
US3651668A (en) * | 1970-01-09 | 1972-03-28 | David Pernick | Yarn feeding means for knitting machines |
US3855821A (en) * | 1973-01-15 | 1974-12-24 | Vyzk A Vyvojory Ustav Z Vseob | Tape-positive yarn feed |
US3854307A (en) * | 1973-04-16 | 1974-12-17 | Wesco Industries Corp | Drive means for positive yarn feeding devices mounted on a circular knitting machine |
US3922887A (en) * | 1974-09-13 | 1975-12-02 | Singer Co | Positive yarn feeding system for circular knitting machine |
DE3205450A1 (en) * | 1981-02-17 | 1982-09-09 | Precision Fukuhara Works Ltd., Kobe | Automatic positively controlled yarn-feed device for use in a knitting machine |
US10119274B2 (en) * | 2013-11-28 | 2018-11-06 | Maurer Söhne Engineering GmbH & Co. KG | Bridging device |
Also Published As
Publication number | Publication date |
---|---|
CH382360A (en) | 1964-09-30 |
GB920527A (en) | 1963-03-06 |
DE1143294B (en) | 1963-02-07 |
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