EP1780321B1 - Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen - Google Patents

Hochgeschwindigkeits-Ringelvorrichtung für Einzylinder-Rundstrickmaschinen Download PDF

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Publication number
EP1780321B1
EP1780321B1 EP05110234A EP05110234A EP1780321B1 EP 1780321 B1 EP1780321 B1 EP 1780321B1 EP 05110234 A EP05110234 A EP 05110234A EP 05110234 A EP05110234 A EP 05110234A EP 1780321 B1 EP1780321 B1 EP 1780321B1
Authority
EP
European Patent Office
Prior art keywords
yarn
plate
clipping
high speed
feeding
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.)
Not-in-force
Application number
EP05110234A
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English (en)
French (fr)
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EP1780321A1 (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
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Pai Lung Machinery Mill Co Ltd
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Filing date
Publication date
Application filed by Pai Lung Machinery Mill Co Ltd filed Critical Pai Lung Machinery Mill Co Ltd
Priority to DE602005016267T priority Critical patent/DE602005016267D1/de
Priority to EP05110234A priority patent/EP1780321B1/de
Priority to AT05110234T priority patent/ATE440985T1/de
Publication of EP1780321A1 publication Critical patent/EP1780321A1/de
Application granted granted Critical
Publication of EP1780321B1 publication Critical patent/EP1780321B1/de
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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.
  • GB2 390 614 A discloses a color altering head for a circular knitting machine according to the preamble of claim 1. A separate control of the yarn feeding and yarn clipping mechanism is, however, not disclosed.
  • WO 00/73 564 A1 discloses a device for selectively feeding threads in knitting machines. Actuation of stripers or of thread clamping and cutting elements in order to arrange the thread transversely to the needle bed of the machine is performed by means of cams applied to the needle bed, which is usually movable with respect to the stripers. The functions of clamping and cutting are, however, performed by the same device clamping and cutting element. Thus, separate control of the yarn feeding and yarn clipping mechanism by associated cams is not disclosed.
  • 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 plates are driven by a color 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 the yarn feeding operation of the yarn feeding mechanism and the yarn clipping operation of the yarn clipping mechanism.
  • high speed operation can be achieved without dropping the yarns.
  • 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 be increased. There is also no metal bouncing force. This can facilitate high speed operation.
  • an improved color altering head which can be adapted 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 2 for single-face circular knitting machines is installed on a circular knitting machine and controlled by a return cam, a color 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 an upper side of the yarn feeding plate 21 that is exposed outside the spacer 50 to prevent floss from entering.
  • the color 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 show the high speed color altering head 2 of the invention in different 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 portion 322 of the clipping yarn pushing plate 32 are exposed outside the spacer 50 on an 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 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.
  • FIG. 6 shows an embodiment of a floss removing device 70 of the color altering head 2.
  • 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)

Claims (9)

  1. Hochgeschwindigkeits-Farbwechseikopf für Pinseiten-Rundstrickmaschinen, eingebaut in einer Rundstrickmaschine und gesteuert durch einen Rückkehmocken, eine Farbauswahleinrichtung und einen oberen Nocken sowie einen unteren Nocken der Rundstrickmaschine, um einen Farbgarn-Zuführvorgang ausruführen und einen farbigen Jaquard-Strickeffekt zu erzielen, umfassend:
    zwei äußere Platten (60), die sich auf zwei Außenseiten des Farbwechselkopfes (2) befinden;
    eine Mehrzahl von Garnzufühnnechanismen (20), die sich zwischen den beiden äußeren Platten (60) befinden, um für den Farbgarn-Zuführvorgang zu sorgen;
    eine Mehrzahl von Garnabtrennmechanismen (30), die zwischen den beiden äußeren Platten (60) und den Garnzufiihrmechanismen (20) alternierend angeordnet sind, um die harbgarne zu klemmen und abzutrennen bzw. abzuscheiden;
    eine Mehrzahl von Distanzstücken (50), die sich zwischen den äußeren Platten (60), den Gamzuführmechanismen (20) und den Garnabtrennmechanismen (30) befinden; und
    eine Mehrzahl von Farbauswahl-Pressplatten bzw. Farbauswahl-Drüekplatten (40), die sich zwischen den beiden äußeren Platten (60) bcünden, wobei jede Farbauswahl-Drückplatte (40) einem Garnzufühnmechanismus (20) und einem Garnabtrennmechanismus (30) zugeordnet ist;
    wobei die Farbauswahl-Drückplatten (40) von der Farbauswahleinnchtung gesteuert werden, um den entsprechenden Garnzuführmechanismus (20) und Gamabtrennmechanismus (30) zu aktivieren,
    dadurch gekennzeichnet, dass der Gamzuführvorgang der Garnzuführmechanismen (20) und der Garnabtrennvorgang der Garnabtrennmechanismen (30) gesondert mit Hilfe des oberen und unteren Nockens mit hoher Geschwindigkeit gesteuert wird, ohne dass die Garne fallengelassen werden.
  2. Hochgeschwindigkeits-Farbwechselkopf nach Anspruch 1, wobei jeder der Garnzufühnmechanismen (20) eine zweite Betätigungsplatte (26), eine zuführende Garndruckplatte (23), einen Verbindungsarm (22), eine Garnzuführplatte (21) und ein elastisches Element (24) umfasst, wobei die Garnzuführplatte von der zuführenden Garndrückplatte (23) mit Hilfe des Verbindungsarms (22) angetrieben wird.
  3. Hochigeschwindigkeits-Farbwechselkopf nach Anspruch 2, wobei jedes der Distanzstücke (50) ein Befestigungs-Augenstück (54) aufweist, wobei die Garnzufiihrplatte (21) einen ersten Augenstückschlitz (211) aufweist, der mit dem Befestigung-Augenstück (54) gekoppelt ist.
  4. Hochgeschwindigkeits-Farbwcchsellkopf nach Anspruch 2, wobei eine Rohgarn-Sicherungsplatte (80) oberhalb der Garnzuführplatte (21) angeordnet ist, welche außerhalb des Distanzstückes (50) frei zugänglich ist, um einen Eintritt des Rohgarns zu verhindern.
  5. Hochgesehwindigkeits-Farbwcchselkopf nach Anspruch 2, wobei die zweite Betätigungsplatte (26) ein erstes Ende, das schwenkbeweglich mit dem Distanzstück (50) gekoppelt ist, und ein anderes freies Ende aufweist, das eingespannt ist und von der Farbauswahl-Drückplatte (40) und der zuführenden Garndrückplatte (23) mit Druck beaufschlagt wird.
  6. Hochgeschwindigkeits-Farbwcchselkopf nach Anspruch 1, wobei jedes der Distanzstücke (50) ein Befestigungs-Augenstück (54), eine erste Befestigungsstelle (51) und eine zweite Befestigungsstelle (52) aufweist.
  7. Hochgeschwindigkeits-Farbwechselkopf nach Anspruch 1, wobei der Garnabtrennmechanismus (30) eine erste Betätigungsplatte (33), eine klemmende Garndrückplatte (32), eine klemmende Garnplatte (31) und ein elastisches Element (34) aufweist, wobei die klemmende Gamplatte (31) von der klemmenden Garmdrückplatte (32) angetrieben wird.
  8. Hochgeschwindigkeits-Farbwcchselkopf nach Anspruch 7, wobei die erste Betätigungsplatte (33) ein erstes Ende, das schwenkbeweglich mit dem Distanzstück (50) gekoppelt ist, und ein anderes freies Ende aufweist, das von der Farbauswahl-Drückplatte (40) und der klemmenden Garndrückplatte (32) vorgetrieben wird.
  9. Hochgesehwindigkeits-Farbweehselkopf nach Anspruch 7, wobei die äußere Platte (60) eine Kerbe (61) aufweist, um eine abnehmbare Rohgarn-Enifermungseinrichtung (70) mit Hilfe eines Befestigungselements (90) zu befestigen, um das Rohgarn zu beseitigen, wobei die Rohgarn-Entfernungseinrichtung (70) Intervalle für den Klemmvorgang der klemmenden Gamplatte (31) vorsieht, wobei die Anzahl von Intervallen gleich der Anzahl von Distanzstücken (50) ist.
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 EP1780321A1 (de) 2007-05-02
EP1780321B1 true EP1780321B1 (de) 2009-08-26

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

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

Families Citing this family (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
ITBS20130087A1 (it) * 2013-06-21 2014-12-22 Santoni & C Spa Dispositivo per alimentare filo agli aghi di una macchina tessile
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
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511949B4 (de) * 1995-03-31 2009-10-15 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Strickmaschine und Fadenwechselvorrichtung
IT1312329B1 (it) * 1999-05-26 2002-04-15 Mecmor Spa Dispositivo per l'alimentazione selettiva dei fili in macchine permaglieria o simili.
US6655176B1 (en) * 2002-06-27 2003-12-02 Pai Lung Machinery Mill Co., Ltd. Striping apparatus for circular knitting machines

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EP1780321A1 (de) 2007-05-02
DE602005016267D1 (de) 2009-10-08
ATE440985T1 (de) 2009-09-15

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