CN216514444U - Needle selector of circular knitting machine - Google Patents
Needle selector of circular knitting machine Download PDFInfo
- Publication number
- CN216514444U CN216514444U CN201990000981.6U CN201990000981U CN216514444U CN 216514444 U CN216514444 U CN 216514444U CN 201990000981 U CN201990000981 U CN 201990000981U CN 216514444 U CN216514444 U CN 216514444U
- Authority
- CN
- China
- Prior art keywords
- cam
- actuator
- loop
- needle
- rail
- 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 - Fee Related
Links
- 238000009940 knitting Methods 0.000 title claims abstract description 45
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 230000001174 ascending effect Effects 0.000 claims description 10
- 230000000630 rising effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000009963 fulling Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- D04B15/32—Cam systems or assemblies for operating knitting instruments
-
- 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
- D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
- D04B15/82—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the needle cams used
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Abstract
The present invention relates to a needle selector for a circular knitting machine, and more particularly to a needle selector for a circular knitting machine, comprising: the actuators are reduced from three to two, and the structure of the two lugs of the reset cam is changed to represent no loop, tuck, loop and double-head loop, so that the cost is saved, and the needle selection action is performed when the auxiliary push jack descends, so that the space utilization rate is high, more feeders are realized, and the productivity is improved.
Description
Technical Field
The present invention relates to a needle selector for a circular knitting machine, and more particularly to a needle selector for a circular knitting machine, comprising: the number of actuators is reduced, the structure of the reset cam is changed to save cost, the space utilization rate is high, more feeders are realized, and the productivity can be improved.
Background
In general, in a circular knitting machine, a knitting needle which is accommodated in a plurality of needle grooves arranged side by side in a cylinder and is slidably displaceable is selected as a needle selection device mounted on a carriage which reciprocates in the longitudinal direction of the cylinder, and a knitting operation is performed by driving with a cam system for knitting.
Knitting actions of the knitting needles include MISS (MISS), TUCK (TUCK), loop (KNIT), and double-end Loop (LINK).
The non-loop refers to a position of a knitting needle which neither ascends nor forms a new loop, the tuck refers to a condition that the knitting needle does not completely ascend but ascends to receive a new loop yarn in the middle and descends to receive the loop yarn again after not forming the loop to form the loop together with a previous thread, the loop forming refers to a condition that the knitting needle completely descends to form the new loop, and the double-head loop forming refers to a condition that the knitting needle completely ascends and then the knitting needle moves to an upper needle cylinder to form the new loop.
Fig. 1 is a diagram for explaining the operation of a needle selector of a conventional circular knitting machine.
The needle selecting device of the circular knitting machine comprises: an actuator 1 for selecting a jacquard push piece; an auxiliary push piece, which transmits the selected function of the jacquard push piece to the knitting needle of the needle bed arranged on the cylinder; a reset cam 2 arranged on the upper part of the actuator 1 for resetting the jacquard push sheet; a reset cam part 3 which is positioned on the upper part of the reset cam 2 and is provided with a reset cam channel 3a which can perform knitting actions of non-loop, tuck, loop and double-head loop in order to form a loop forming ring; and a push jack 4 which is formed with a butt 4a coupled to the reset cam path 3a, and which ascends and descends and moves the knitting needle by a needle selecting action of the actuator 1.
The actuator 1 includes a first actuator 1a, a second actuator 1b, and a third actuator 1c, and a projection 2a is formed on the reset cam 2.
In the needle selecting device of the conventional circular knitting machine configured as described above, the jacquard push jack (needle) (a) is reset at the projecting portion 2a of the reset cam 2, whether to perform the loop breaking a or the tucking b, the loop forming c, and the double-end loop forming d is determined by the first actuator 1a, and the needle determined as the loop breaking a is the loop breaking a (a-1) until the end.
In the needle not selected as the non-loop a by the first actuator, whether tucking b or looping c or double-end looping d is performed is determined by the second actuator (a-2).
In the needle not selected as tuck b by the second actuator, whether to perform looping c or double-end looping d (a-3) is determined by the third actuator.
That is, in the conventional needle selecting device for a circular knitting machine, 3 actuators 1 are required to show the miss-stitch a, the tuck-stitch b, the stitch c, and the double-end stitch d.
On the other hand, reference numeral 5 is a cam structure of the prior art for aligning the needles located in the cylinder to the needle aligning portion of the lower cylinder, and reference numeral 6 is a cam structure of the prior art for feeding the aligned needles, which are not selected by the third actuator, to the upper cylinder and aligning the slider downward.
Disclosure of Invention
(problem to be solved)
The present invention has been made to solve the above-mentioned problems (the problem of re-screening after aligning the needles of the upper needle cylinder) of the prior art, and an object of the present invention is to provide a needle selecting device for a circular knitting machine, which performs needle alignment and screening in a part to improve space efficiency, realize more feeders, and further improve productivity problems of the conventional double-head circular knitting machine by about 35%, and reduce the number of actuators by changing the structure of a reset cam, thereby saving costs.
(means for solving the problems)
As a technical idea for achieving the present invention, a needle selecting device of a circular knitting machine includes: an actuator for selecting a jacquard jack; an auxiliary push-piece, which transmits the selected function of the jacquard push-piece to the knitting needle arranged on the needle bed of the needle cylinder; the reset cam is arranged at the upper part of the actuator to reset the jacquard push sheet linked with the actuator; a first cam part located at an upper part of the reset cam and formed with a cam path which can realize knitting actions of non-loop, tuck, loop and double-end loop to form a loop ring, the cam path being composed of an upper part and a lower part, the upper part being a line composed of an upper cam front end part, an upper ascending rail, an upper inflection point and an upper descending rail, and the lower part being a line composed of a lower cam front end part, a lower ascending rail, a lower inflection point and a lower descending rail; a slider which is coupled to an upper portion of the auxiliary jack, moves up and down by a needle selection action of the actuator, and moves the knitting needle; a second cam portion having an ascending path and a descending path which move in conjunction with the butt of the slider on the upper side of the first cam portion; wherein the actuator is divided into a first actuator and a second actuator, and a first protrusion and a second protrusion are formed on the reset cam; the auxiliary push plate is a butt of the auxiliary push plate which is protruded out of the needle cylinder by the second bulge of the reset cam of the feeder before and is reset to the state that the first actuator reselects the auxiliary push plate to return to the first cam part, and whether the front end part of the upper cam represents non-loop and tuck or loop formation and double-head loop formation is determined by the first actuator; for the auxiliary push piece selected by the first actuator to indicate the absence and the tuck at the front end portion of the upper cam, it is moved to the front end portion of the lower cam, and since the slider and the auxiliary push piece are connected by the rising rail of the second cam portion, the auxiliary push piece moved to the front end portion of the lower cam by the first protrusion of the reset cam while passing through the lower rising rail is protruded again to the outside of the cylinder, thereby moving along the lower descending rail if it is determined as the absence of the loop by the second actuator at the lower inflection point, and moving to one side if it is determined as the tuck; for the auxiliary push piece not selected by the first actuator to be indicated in the front end portion of the upper cam in the loop formation and the double-headed loop formation, if it is determined to be the loop formation by the second actuator at the upper inflection point along the upper rising rail, since the slider and the auxiliary push piece are connected by the falling rail of the second cam portion, it moves along the upper falling rail, and at the same time, it moves to one side if it is determined to be the double-headed loop formation; by setting the needle selection position at the upper inflection point, the operation of aligning the needle positioned on the upper side of the cylinder to the lower side and the needle selecting operation are performed at one place.
(Effect of the invention)
The needle selecting device for circular knitting machine of the present invention reduces the number of actuators from three to two, forms two protrusions of reset cams to indicate no loop, tuck, loop and double-end loop, and further saves cost, and performs needle selecting operation when the auxiliary push jack descends, thereby achieving high space utilization, realizing more feeders, and further improving productivity (about 35% higher than the conventional one).
Drawings
Fig. 1 is a diagram for explaining the operation of a needle selector of a conventional circular knitting machine.
Fig. 2 is a diagram for explaining the operation of the needle selector of the circular knitting machine of the present invention.
Fig. 3 is a diagram showing the relationship between an actuator and a jacquard push-piece in a needle selector of a circular knitting machine according to the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those having ordinary knowledge in the art to which the present invention pertains can easily carry out the embodiments. However, the present invention is embodied in various shapes and is not limited to the embodiments described herein.
Hereinafter, the structure and operation of the embodiments of the present invention will be described with reference to the drawings.
Fig. 2 is a diagram for explaining the operation of the needle selector of the circular knitting machine of the present invention;
fig. 3 is a diagram showing the relationship between an actuator and a jacquard push-piece in a needle selector of a circular knitting machine according to the present invention.
Referring to fig. 2 and 3, the needle selector of the circular knitting machine of the present invention includes: actuator 10, reset cam 20, first cam portion 30, push plate 40 and second cam portion 50.
The actuator 10 is such as to select a jacquard push-piece 12 and to transmit the selected action of the jacquard push-piece 12 to the needles mounted on the needle bed of the needle cylinder.
The actuator 10 is divided into a first actuator 10a and a second actuator 10 b.
The reset cam 20 is arranged above the actuator 10 to reset the jacquard push-piece 12.
In addition, the reset cam 20 is formed with a first projecting portion 21 and a second projecting portion 22, and arranges (resets) the jacquard push-piece 12.
That is, the first projection 21 is the part that resets the jacquard push-piece 12 of the first actuator 10a, and the second projection 22 is the part that resets the jacquard push-piece 12 of the second actuator 10 b.
The first cam portion 30 is located at an upper portion of the reset cam 20, and is formed with a cam path for forming a loop, and the cam path is capable of performing knitting operation of a MISS (MISS) a, a TUCK (tack) b, a loop (KNIT) c, and a double-end Loop (LINK) d.
The loop formation c is downward weaving, and the double-end loop formation d is upward weaving.
The cam path is composed of an upper portion and a lower portion, the upper portion is a line composed of an upper cam tip 31a, an upper ascending rail 31b, an upper inflection point 31c, and an upper descending rail 31d, and the lower portion is a line composed of a lower cam tip 31e, a lower ascending rail 31f, a lower inflection point 31g, and a lower descending rail 31 h.
The slider 41 is formed with a butt bt coupled to the cam passage 31, and moves the knitting needle while being lifted and lowered by a needle selecting action of the actuator 10.
In addition, the slider 41 is a slider to which an auxiliary push pad 42 is coupled at a lower portion, and the auxiliary push pad 42 is a push pad supporting the slider 41 to move the needle, and is formed with a butt bt coupled to the cam way.
The second cam portion 50 includes an ascending rail 51 and a descending rail 52, and the ascending rail 51 and the descending rail 52 are moved by engaging the butt bt of the slider on the upper side of the first cam portion 30.
In the needle selecting device for a circular knitting machine according to the present invention configured as described above, the auxiliary pusher 42 is a butt bt of the auxiliary pusher 42 which is protruded out of the needle cylinder by the second projecting portion of the previous feeder return cam, and is returned to the first cam portion 30 by returning to the state in which the auxiliary pusher 42 is reselectable by the first actuator 10a, and the auxiliary pusher 42 determines whether the upper cam leading end portion 31a indicates non-stitch a and tuck b or stitch c and double-end stitch d (a-1) by the first actuator 10 a.
The auxiliary push piece 42 selected by the first actuator 10a and the auxiliary push piece 42 not selected are reset again by the first protrusion 21 of the reset cam 20.
In addition, the auxiliary push piece 42 selected by the first actuator 10a and indicating no loop a and no loop B at the upper cam leading end 31a moves to the lower cam leading end 31e, and since the slider 41 and the auxiliary push piece 42 are connected by the rising rail 51 of the second cam portion 50, the auxiliary push piece 42 which moves to the lower cam leading end 31e by the first protrusion 21 of the reset cam 20 while passing through the lower rising rail 31f protrudes outward of the cylinder again, and moves along the lower falling rail 31h when it is determined by the second actuator 10B that no loop a is formed at the lower inflection point 31g, and moves to one side (B-1) when it is determined as a loop B.
In addition, if the auxiliary push piece 42 of the loop c and the double-headed loop d is determined to be the loop c by the second actuator 10B at the upper inflection point 31c along the upper rising rail 31B with respect to the upper cam leading end portion 31a that is not selected by the first actuator 10a, the slider 41 and the auxiliary push piece 42 are connected by the descending rail 52 of the second cam portion 50, and thus move along the upper descending rail 31d, and at the same time, move to one side (B-2) if it is determined to be the double-headed loop d.
For reference, the present invention sets the needle selection position at the upper inflection point 31c (the position where the auxiliary jack starts to descend), thereby performing the action of aligning the needles located at the upper side of the needle cylinder to the lower side and the needle selection action at one place, so that the space utilization can be greatly improved, and the productivity of the double-head knitting machine can be improved by about 35%.
The present invention has been described with reference to one embodiment shown in the drawings, but those having ordinary skill in the art will appreciate that various modifications and other embodiments can be made.
Claims (1)
1. A needle selector of a circular knitting machine is characterized by comprising:
an actuator for selecting a jacquard jack;
an auxiliary push-piece, which transmits the selected function of the jacquard push-piece to the knitting needle arranged on the needle bed of the needle cylinder;
the reset cam is arranged at the upper part of the actuator to reset the jacquard push sheet linked with the actuator;
a first cam part located at an upper part of the reset cam and formed with a cam path capable of realizing knitting operations of non-loop, tuck, loop and double-end loop to form a loop ring, the cam path being composed of an upper part and a lower part, the upper part being a line composed of an upper cam front end part, an upper ascending rail, an upper inflection point and an upper descending rail, and the lower part being a line composed of a lower cam front end part, a lower ascending rail, a lower inflection point and a lower descending rail;
a slider which is coupled to an upper portion of the auxiliary jack, moves up and down by a needle selection action of the actuator, and moves the knitting needle;
a second cam portion having an ascending path and a descending path which move in conjunction with the butt of the slider on the upper side of the first cam portion;
wherein the actuator is divided into a first actuator and a second actuator, and a first protrusion and a second protrusion are formed on the reset cam;
the auxiliary push plate is a butt of the auxiliary push plate which is protruded out of the needle cylinder by the second bulge of the reset cam of the feeder before and is reset to the state that the first actuator reselects the auxiliary push plate to return to the first cam part, and whether the front end part of the upper cam represents non-loop and tuck or loop formation and double-head loop formation is determined by the first actuator;
for the auxiliary push piece selected by the first actuator to indicate the absence and the tuck at the front end portion of the upper cam, it is moved to the front end portion of the lower cam, and since the slider and the auxiliary push piece are connected by the rising rail of the second cam portion, the auxiliary push piece moved to the front end portion of the lower cam by the first protrusion of the reset cam while passing through the lower rising rail is protruded again to the outside of the cylinder, thereby moving along the lower descending rail if it is determined as the absence of the loop by the second actuator at the lower inflection point, and moving to one side if it is determined as the tuck;
for the auxiliary push piece not selected by the first actuator to be indicated in the front end portion of the upper cam in the loop formation and the double-headed loop formation, if it is determined to be the loop formation by the second actuator at the upper inflection point along the upper rising rail, since the slider and the auxiliary push piece are connected by the falling rail of the second cam portion, it moves along the upper falling rail, and at the same time, it moves to one side if it is determined to be the double-headed loop formation;
by setting the needle selection position at the upper inflection point, the operation of aligning the needle positioned on the upper side of the cylinder to the lower side and the needle selecting operation are performed at one place.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2018-0103633 | 2018-08-31 | ||
| KR1020180103633A KR101964231B1 (en) | 2018-08-31 | 2018-08-31 | Needle selecting device for circular knitting machine |
| PCT/KR2019/004354 WO2020045784A1 (en) | 2018-08-31 | 2019-04-11 | Needle selection device of circular knitting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216514444U true CN216514444U (en) | 2022-05-13 |
Family
ID=66167098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201990000981.6U Expired - Fee Related CN216514444U (en) | 2018-08-31 | 2019-04-11 | Needle selector of circular knitting machine |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101964231B1 (en) |
| CN (1) | CN216514444U (en) |
| WO (1) | WO2020045784A1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2816700B2 (en) * | 1989-04-25 | 1998-10-27 | 株式会社福原精機製作所 | Electromagnetic needle selection device for circular knitting machine |
| JP3462226B2 (en) * | 1992-10-09 | 2003-11-05 | 株式会社福原精機製作所 | Needle selection device in double-sided circular knitting machine |
| JP2000328404A (en) * | 1999-05-17 | 2000-11-28 | Precision Fukuhara Works Ltd | Controlling apparatus and method for electronically patterning circular knitting machine |
| KR100347672B1 (en) * | 2000-05-15 | 2002-08-07 | 중앙섬유기계 주식회사 | Links-links jacquard forming circular knitting machine with computer |
| KR100458925B1 (en) * | 2002-05-22 | 2004-12-03 | 쌍용기계공업주식회사 | Electronic stripping running gear for circular knitting machine |
| KR20060112405A (en) * | 2005-04-27 | 2006-11-01 | 주식회사 한국로보트 | Electronic circular knitting machine |
| CN101351587B (en) | 2005-12-27 | 2011-03-02 | 株式会社岛精机制作所 | Needle selecting device for weft knitting machine |
| JP2011149128A (en) * | 2010-01-22 | 2011-08-04 | Gunze Ltd | Jack controller of needle-selecting machine, and circular knitting machine |
| KR200464663Y1 (en) * | 2011-10-12 | 2013-01-15 | 김영수 | A cylinder needle structrue for circular knitting machine |
-
2018
- 2018-08-31 KR KR1020180103633A patent/KR101964231B1/en active IP Right Grant
-
2019
- 2019-04-11 WO PCT/KR2019/004354 patent/WO2020045784A1/en active Application Filing
- 2019-04-11 CN CN201990000981.6U patent/CN216514444U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020045784A1 (en) | 2020-03-05 |
| KR101964231B1 (en) | 2019-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100554554C (en) | Straight-bar machines with movable yarn guide member | |
| EP3960920A1 (en) | Knitting mechanism for knitting jacquard knitted fabric on circular knitting machine, knitting method using the same, and sinker for use in the same | |
| EP2894245B1 (en) | Flatbed knitting machine equipped with sinker device | |
| US6089047A (en) | Inner pile jacquard mechanism for a double-loop towel circular knitting machine | |
| EP2025785B1 (en) | Knitting method of intersia pattern fabric and weft knitting machine | |
| EP3608461B1 (en) | Plating knitting method used in flat knitting machine | |
| JP2023109287A (en) | circular knitting machine structure | |
| CN216514444U (en) | Needle selector of circular knitting machine | |
| JP4015973B2 (en) | Knitting yarn holding and cutting method and apparatus | |
| EP0533414B1 (en) | Flat knitting machine | |
| JP2008280641A (en) | Stripe pattern knitting device of feed yarn changeover apparatus and its knitting method | |
| US11136698B2 (en) | Weft knitting machine knitting structure with changeable yarn positions | |
| CN106521791B (en) | Circular knitting machine, knitting tool control device thereof and knitting method | |
| US4667488A (en) | Device for the selection of the sinker and needle assemblies of an automatic flat knitting machine | |
| CN106995972B (en) | Knitting method and knitting mechanism of circular knitting machine and circular knitting machine | |
| CN111793889B (en) | Flat knitting machine | |
| JPH0345758A (en) | Knitting machine with needle- controlling device for pattern stitch | |
| CN105239264A (en) | Composite triangle system | |
| CN103603129B (en) | Cam device for realizing irregular single-side applique | |
| KR20030023755A (en) | Weft knitting machine with transfer mechanism and transferring method | |
| US3331218A (en) | Knitting machine having laterally deflectable needles | |
| JPS59137550A (en) | Method and knitting machine for producing knitted fabric | |
| EP4306698A1 (en) | Method for knitting punch-lace knitted fabric produced by flat-knitting machine | |
| KR200200976Y1 (en) | Construction for selector working in flat knitting machine | |
| EP3770312A1 (en) | Weft knitting machine capable of changing yarn positions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |