EP1780321A1 - Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen - Google Patents

Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen Download PDF

Info

Publication number: EP1780321A1
Authority: EP; European Patent Office
Prior art keywords: yarn; plate; clipping; high speed; yarn feeding
Prior art date: 2005-11-01
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.): Granted

Application number

EP05110234A

Other languages

English (en)

French (fr)

Other versions

EP1780321B1 (de

Inventor

Chih-Liang Wei

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.)

Pai Lung Machinery Mill Co Ltd

Original Assignee

Pai Lung Machinery Mill Co Ltd

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.)

2005-11-01

Filing date

2005-11-01

Publication date

2007-05-02

2005-11-01 Application filed by Pai Lung Machinery Mill Co Ltd filed Critical Pai Lung Machinery Mill Co Ltd

2005-11-01 Priority to DE602005016267T priority Critical patent/DE602005016267D1/de

2005-11-01 Priority to EP05110234A priority patent/EP1780321B1/de

2005-11-01 Priority to AT05110234T priority patent/ATE440985T1/de

2007-05-02 Publication of EP1780321A1 publication Critical patent/EP1780321A1/de

2009-08-26 Application granted granted Critical

2009-08-26 Publication of EP1780321B1 publication Critical patent/EP1780321B1/de

Status Not-in-force legal-status Critical Current

2025-11-01 Anticipated expiration legal-status Critical

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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
- D04B15/54—Thread guides
- D04B15/58—Thread guides for circular knitting machines; Thread-changing devices
- D04B15/60—Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices

Definitions

the present invention relates to a color altering head for circular knitting machines and particularly to a high speed color altering head for single-face circular knitting machines to feed colored yarns.
a color altering head is installed on a yarn feeding bore of the circular knitting machine.
the color altering head can move a color yarn to the yarn feeding bore to be picked up by a knitting needle so that the colored yarn is knitted into the fabric to achieve jacquard knitting effect that contains different colors.
the single-face color altering head mechanism 1 includes a yarn feeding plate 11, a yarn clipping plate 12 and a spacer 13.
the yarn feeding plate 11 has a butt 112 driven by a cam (not shown in the drawings) of the circular knitting machine to push the yarn feeding plate 11 forwards (referring to FIG. 1A).
a colored yarn threading through a yarn feeding eye 116 is picked up by the yarn clipping plate 12 and clipped between the yarn clipping plate 12 and the spacer 13, and can be drawn (not shown in the drawings).
the yarn feeding plate 11 is immediately driven by the cam (not shown in the drawings) to retract the yarn feeding plate 11 through a drawing portion 113 formed thereon (referring to FIG. 1C), and the colored yarn threading through the yarn feeding eye 116 is picked up by the yarn feeding plate 11, and the yarn is moved along the path of an action slot 111 to be transversely saddled on a yarn clipping portion 121 (not shown in the drawings) of the yarn clipping plate 12.
the yarn clipping plate 12 is retracted by a reward driven force of the yarn feeding plate 11 (referring to FIG. 1D).
the yarn clipping plate 12 is moved rewards to the spacer 13 by the yarn feeding plate 11, and a shearing force is generated to sever the colored yarn and clip the colored yarn between the yarn clipping plate 12 and the spacer 13. Thereby different colored yarns can be changed in the knitting operation, and the resulting knitted fabric has colorful jacquard effect.
the conventional color altering head previously discussed mainly aims to be used in the circular knitting machine operating at a regular speed to place the altered yarn transversely on the clipping portion 121, and generate a shearing force with the spacer 13 to sever the yarn, and clip the yarn between the yarn clipping plate 12 and the spacer 13.
high speed about 25 RPM
two serious problems occur: 1. During operation of the yarn feeding plate 11, an extra action of driving the yarn clipping plate 12 is needed. Hence operation cycle is longer, and high speed knitting operation is hindered. Moreover, the constant driving of the yarn clipping plate 12 and the associated hitting generate metal impact and bouncing. This also impairs high speed operation. 2.
the color altering head As the yarn clipping plate 12 is driven by the yarn feeding plate 11 at a selected operation speed, the color altering head also has to be designed and function at the selected operation speed. In the event that the circular knitting machine runs at an operation speed higher than the designed level, the yarn cannot be straddled on the clipping portion 121 or the clipping portion 121 cannot clip the severed yarn, yarn dropping occurs.
the primary object of the present invention is to solve the aforesaid shortcomings.
the present invention provides an improved color altering head that separately controls the yarn feeding plate and the yarn clipping plate. Each has its own operation. There is no extra driving operation. Hence operation speed can increase. There is also no metal bouncing force. This can facilitate high speed operation.
Another object of the invention is to provide an improved color altering head which is adaptable to circular knitting machines of varying operation speeds. By changing the control sequence of the cams, the color altering head can function as desired at different operation speeds of the circular knitting machines. The yarn can be severed smoothly, and yarn dropping can be prevented.
the high speed color altering head for single-face knitting machines includes: two outer plates on two outer sides of the color altering head; a plurality of yarn feeding mechanisms located between the two outer plates to provide colored yarn feeding operation; a plurality of yarn clipping mechanisms located between the two outer plates alternately among the yarn feeding mechanisms to clip and sever colored yarns; a plurality of spacers located on the plates and yarn feeding mechanisms; and a plurality of color selection pressing plates located between the two outer plates.
Each color selection pressing plate corresponds to one yarn feeding mechanism and one yarn clipping mechanism.
the color selection pressing plate is driven by a needle selection device to release the corresponding yarn feeding mechanism and yarn clipping mechanism to enable the upper and lower cams of the circular knitting machine to separately control yarn feeding operation of the yarn feeding mechanism and yarn clipping operation of the yarn clipping mechanism. Thereby high speed operation can be achieved without dropping the yarns.
the high speed color altering head 2 for single-face circular knitting machines is installed on a circular knitting machine and controlled by a return cam, a needle selection device and upper and lower cams (not shown in the drawings) of the circular knitting machine to feed colored yarns to a knitting needle and perform colored and jacquard knitting operation.
the color altering head 2 includes two outer plates 60 located on two outer sides, a plurality of yarn feeding mechanism 20 located between the two outer plates 60 to perform colored yarn feeding operation, a plurality of yarn clipping mechanism 30 located between the two outer plates 60 among the yarn feeding mechanisms 20 in an alternate fashion to clip and sever colored yarns, a plurality of spacers 50 located between the outer plates 60, yarn feeding mechanisms 20 and yarn clipping mechanisms 30 and a plurality of color selection pressing plates 40 located between the two outer plates 60.
Each of the color selection pressing plates 40 corresponds to one yarn feeding mechanism 20 and one yarn clipping mechanism 30.
a floss detent plate 80 also is provided on a upper side of the yarn feeding plate 21 that is exposed outside the spacer 50 to prevent floss from entering.
the needle selection device (not shown in the drawings) can drive the color selection pressing plate 40 to release the corresponding yarn feeding mechanism 20 and the yarn clipping mechanism 30 so that the upper and lower cams of the circular knitting machines can separately control yarn feeding operation of the yarn feeding mechanism 20 and yarn clipping operation of the yarn clipping mechanism 30 to achieve high speed operation without dropping the yarns.
each yarn clipping mechanism 30 includes a first action plate 33, a clipping yarn pushing plate 32, a clipping yarn plate 31 and an elastic element 34.
the clipping yarn plate 31 is driven by the clipping yarn pushing plate 32.
the first action plate 33 has one end pivotally coupled with the spacer 50 and another free end harnessed and pressed by the color selection pressing plate 40 and the clipping yarn pushing plate 32.
each yarn feeding mechanism 20 includes a second action plate 26, a feeding yarn pushing plate 23, a linkage bar 22, a yarn feeding plate 21 and two elastic elements 24 and 25.
the yarn feeding plate 21 is driven by the feeding yarn pushing plate 23 through the linkage bar 22.
the yarn feeding plate 21 has an action slot 211 run through by an anchor lug 54 of the spacer 50.
the second action plate 26 has one end pivotally coupled with the spacer 50 and another free end harnessed and pressed by the color selection pressing plate 40 and the feeding yarn pushing plate 23.
FIGS. 5A through 5H for the high speed color altering head 2 of the invention in operating conditions.
the yarn feeding and severing operations are controlled by the upper and lower cams (not shown in the drawings).
the color selection pressing plate 40 pushes the second action plate 26 and the first action plate 33 through a thrust end 42, and the feeding yarn pushing plate 23 has a first detent portion 231 and the clipping yarn pushing plate 32 has a second detent portion 321 retained respectively by the second action plate 26 and the first action plate 33 without moving.
the thrust end 42 of the color selection pressing plate 40 enables the second action plate 26 of the yarn feeding mechanism 20 to be pushed and moved by the feeding yarn pushing plate 23 about a first axis 261 while another end of the second action plate is the free end, and the first action plate 33 of the yarn clipping mechanism 30 to be pushed and moved by the clipping yarn pushing plate 32 about a second axis 331 while another end of the first action plate is the free end (with the pushing force generated by the elastic elements 24 and 34).
first drawing portion 232 of the feeding yarn pushing plate 23 and a first thrust portio n 322 of the clipping yarn pushing plate 32 are exposed outside the spacer 50 on a upper side.
the first drawing portion 232 exposed outside the spacer 50 is driven by the upper cam (not shown in the drawings) of the circular knitting machine to move the linkage bar 22 rearwards.
the linkage bar 22 moves about an axial hole 221 to sway the pivotal juncture of a pivot head 223 and a coupling portion 212 to move the yarn feeding plate 21 forwards along the action slot 211 to move the yarn outside (referring to FIG. 5E).
the first thrust portion 322 of the clipping yarn pushing plate 32 exposed outside the spacer 50 is driven forwards by another upper cam (not shown in the drawings) to move the clipping yarn plate 31.
the clipping yarn plate 31 is moved forwards along a path defined by a first anchor point 51 and a first slot 313 and a second anchor point 52 and a second slot 314 to release the yarn at the front side (referring to FIG. 5F) to be used by the knitting needle (not shown in the drawings) of the circular knitting machine to perform knitting operation.
the color selection pressing plate 40 When the a return cam (not shown in the drawings) of the circular knitting machine is in contact with the color selection pressing plate 40 in the next rotation cycle, the color selection pressing plate 40 is returned and reset. While the color selection pressing plate 40 depresses the first drawing portion 232 of the feeding yarn pushing plate 23 into the spacer 50 to expose a second thrust portion 233 outside the spacer 50 on a lower side, and the first thrust portion 322 of the clipping yarn pushing plate 32 is pushed into the spacer 50 to expose a second drawing portion 323 outside the spacer 50 on the lower side, the yarn feeding plate 21 and the clipping yarn plate 31 are not moving (referring to FIGS. 5G and 5H).
Another set of the yarn feeding mechanism (not shown in the drawings) and another set of the yarn clipping mechanism (not shown in the drawings) resume the aforesaid operations only when the needle selection device (not shown in the drawings) is changed to another colored yarn. Then another colored yarn is picked up and released for knitting operation. Meanwhile, the second thrust portion 233 of the feeding yarn pushing plate 23 exposed outside the spacer 50 is driven by the lower cam (not shown in the drawings) to drive the linkage bar 22 forwards, and the linkage bar 22 moves about an axial hole 221 to sway the pivotal juncture of the pivot head 223 and the coupling portion 212 to move the yarn feeding plate 21 along the moving path of the action slot 211 to move the yarn rewards (referring to FIG.
the outer plate 60 has two notches 61 to fasten the floss removing device 70 through a fastening element 90 (such as a screw). It is located on the position where yarn severing and clipping take place on the clipping portion 311 of the yarn clipping mechanism 30, and the floss is accumulated easily.
the floss removing device adopts a detachable design and enables the floss to be cleared easily and quickly.

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Engineering & Computer Science (AREA)
Textile Engineering (AREA)
Knitting Machines (AREA)

EP05110234A 2005-11-01 2005-11-01 Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen Not-in-force EP1780321B1 (de)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
DE602005016267T DE602005016267D1 (de)	2005-11-01	2005-11-01	Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen
EP05110234A EP1780321B1 (de)	2005-11-01	2005-11-01	Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen
AT05110234T ATE440985T1 (de)	2005-11-01	2005-11-01	Hochgeschwindigkeits-ringelvorrichtung für einzylinder-rundstrickmaschinen

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP05110234A EP1780321B1 (de)	2005-11-01	2005-11-01	Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen

Publications (2)

Publication Number	Publication Date
EP1780321A1 true EP1780321A1 (de)	2007-05-02
EP1780321B1 EP1780321B1 (de)	2009-08-26

Family

ID=36809024

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP05110234A Not-in-force EP1780321B1 (de)	2005-11-01	2005-11-01	Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen

Country Status (3)

Country	Link
EP (1)	EP1780321B1 (de)
AT (1)	ATE440985T1 (de)
DE (1)	DE602005016267D1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN101481847B (zh) *	2008-01-09	2011-06-01	洪荣豪	变换纱线装置的选色控制部机构
CN104233612A (zh) *	2013-06-21	2014-12-24	山德霓股份公司	用于向针织机的针提供线的装置
CN105386225A (zh) *	2015-12-10	2016-03-09	张家港润山针织机械有限公司	调线器
CN110644127A (zh) *	2019-10-22	2020-01-03	泉州全能智控机械研究所有限公司	调线头

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2300002A (en) *	1995-03-31	1996-10-23	Sipra Patent Beteiligung	Yarn changer for knitting machines
WO2000073564A1 (en) *	1999-05-26	2000-12-07	Mec-Mor S.R.L.	Device for selectively feeding threads in knitting machines or the like
GB2390614A (en) *	2002-06-27	2004-01-14	Pai Lung Machinery Mill Co Ltd	Yarn changing mechanism for a circular knitting machine

2005
- 2005-11-01 AT AT05110234T patent/ATE440985T1/de not_active IP Right Cessation
- 2005-11-01 DE DE602005016267T patent/DE602005016267D1/de active Active
- 2005-11-01 EP EP05110234A patent/EP1780321B1/de not_active Not-in-force

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2300002A (en) *	1995-03-31	1996-10-23	Sipra Patent Beteiligung	Yarn changer for knitting machines
WO2000073564A1 (en) *	1999-05-26	2000-12-07	Mec-Mor S.R.L.	Device for selectively feeding threads in knitting machines or the like
GB2390614A (en) *	2002-06-27	2004-01-14	Pai Lung Machinery Mill Co Ltd	Yarn changing mechanism for a circular knitting machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN101481847B (zh) *	2008-01-09	2011-06-01	洪荣豪	变换纱线装置的选色控制部机构
CN104233612A (zh) *	2013-06-21	2014-12-24	山德霓股份公司	用于向针织机的针提供线的装置
CN104233612B (zh) *	2013-06-21	2017-04-12	山德霓股份公司	用于向针织机的针提供线的装置
CN105386225A (zh) *	2015-12-10	2016-03-09	张家港润山针织机械有限公司	调线器
CN105386225B (zh) *	2015-12-10	2017-09-05	江苏润山精密机械科技有限公司	调线器
CN110644127A (zh) *	2019-10-22	2020-01-03	泉州全能智控机械研究所有限公司	调线头
CN110644127B (zh) *	2019-10-22	2024-03-15	泉州全能智控机械研究所有限公司	调线头

Also Published As

Publication number	Publication date
ATE440985T1 (de)	2009-09-15
EP1780321B1 (de)	2009-08-26
DE602005016267D1 (de)	2009-10-08

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Publication	Publication Date	Title
US7055348B1 (en)	2006-06-06	High speed color altering head for single-face circular knitting machines
US6655176B1 (en)	2003-12-02	Striping apparatus for circular knitting machines
EP1780321A1 (de)	2007-05-02	Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen
US7036343B1 (en)	2006-05-02	Striping apparatus of a circular knitting machine
US6988385B2 (en)	2006-01-24	Yarn feeder of weft knitting machine and method of feeding yarn for weft knitting machine
JPH0372740B2 (de)	1991-11-19
CN100532672C (zh)	2009-08-26	在圆型针织机中用于变换纱线的装置和方法
GB2046803A (en)	1980-11-19	Thread control device for sewing machines
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