CN100547138C - The color-changing device of circular knitter - Google Patents
The color-changing device of circular knitter Download PDFInfo
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- CN100547138C CN100547138C CNB2005101172398A CN200510117239A CN100547138C CN 100547138 C CN100547138 C CN 100547138C CN B2005101172398 A CNB2005101172398 A CN B2005101172398A CN 200510117239 A CN200510117239 A CN 200510117239A CN 100547138 C CN100547138 C CN 100547138C
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Abstract
The invention discloses a kind of color-changing device of circular knitter, include a selector, a controller, for a yarn unit and a driver element, this confession yarn unit comprises two parts, first part includes a yarn change board, in order to yarn is fed to the position of eating yarn, second part includes a movable knife plate, in order to clamping the end of this yarn under the situation of awaiting orders, and cuts off old yarn make it break away from fabric and be returned to the situation of awaiting orders when changing yarn; Preferred embodiment of the present invention is to utilize different cams to drive yarn change board and movable knife plate respectively, even the position of new and old yarn is separated by far away when changing yarn, also can be by adjusting and the action sequence of controlling different cams, just its tail end is discharged from movable knife plate before allowing new yarn be torn, prevent to pull apart yarn avoiding the generation of yarn tail, and then improve the quality of fabric.
Description
Technical field
The present invention relates to a kind of color-changing device of knitting machine, particularly a kind of color-changing device that is used in circular knitter.
Background technology
In circular knitter, use the technology of color-changing device to be known by people already, for example, checked and approved among " the STRIPINGAPPARATUS FOR CIRCULAR KNITTING MACHINES " of No. the 6655176th, laid-open U.S. Patents, and all disclosed a kind of in " the STRIPING SYSTEM FOR CIIRCULARKNITTING MACHINE " of No. the 5070709th, United States Patent (USP) respectively in order to color-changing device with the knitting needle of different yarn feeding knitting machines.In " the CIRCULAR KNITTING MACHINE STRIPER CONTROLSYSTEM " of No. the 5218845th, approved United States Patent (USP), then disclosed a kind of controller that is used in the color-changing device in addition.
Color-changing device disclosed in No. the 5218845th, the aforesaid U.S. Patent, its structure, comprising to shown in Fig. 1-4 as Fig. 1-1: yarn change board 10 and movable knife plate 11, and driving element (not shown), in order to drive yarn change board 10 and movable knife plate 11; Yarn change board 10 is positioned at the position that does not act on during normality, the main body 12 and movable knife plate 11 is also withdrawn, and utilize its hook portion 110 yarn to be clipped in the leading edge 120 of main body 12; When beginning for yarn, yarn change board 10 driven elements promote, the front end of yarn change board 10 is stretched out (seeing Fig. 1-2) outwardly, the tail end 101 of yarn change board 10 will be run into first latch 111 of movable knife plate 11 simultaneously, move towards the left of Fig. 1-3 in order to drive movable knife plate 11, when yarn change board 10 moves to outside confession yarn position, the hook portion 110 of movable knife plate 11 will discharge yarns Y (seeing Fig. 1-3), certainly before yarns Y is decontroled by hook portion 110, yarns Y has just been delivered to the position of yarn feeding by yarn change board 10, and is hooked by knitting needle (needle) 13 and to carry out knitting operation.
At last, when changing another yarns, before extend out to for the yarn change board 10 of yarn position and can driven elements have taken back position (as the position of Fig. 1-1) to normality, in yarn change board 10 process that right direction moves in Fig. 1-4, the nose 102 of yarn change board 10 will be run into second latch 112 of movable knife plate 11, then drive activity knife plate 11 to the right direction move and get back to the normality position, the hook portion 110 of movable then knife plate 11 will be clipped in the tail end of yarns Y the leading edge 120 of main body 12 again at leading edge 120 places of main body 12 when yarns Y is cut off.
Generally speaking, this color-changing device can provide the yarn of several different colours, for example four look color-changing devices just have four groups of side by side yarn change board 10 and movable knife plates 11 each other, respectively in order to carry out the replacing of four kinds of yarns, six look color-changing devices are as the same, the number of yarn the more, the width of color-changing device is also wideer; And the color-changing device disclosed in No. the 5218845th, the aforesaid U.S. Patent, because the action of movable knife plate 11 is to be driven by yarn change board 10, therefore at yarn change board 10 driven elements when move the normality position, can just can run into second latch 112 of movable knife plate 11 some time of delayed slightly, this design that drives by same driving element, the time that can make movable knife plate 11 cut off yarns Y is delayed slightly; If the position of new and old two yarns is separated by far away when changing yarn, for example No. 1 yarn and No. 6 yarns, the then this design that utilizes single driving element to drive different yarn change boards 10, can be because the distance of being separated by be far away, and the time difference of its action is increased, make the time of decontroling yarns Y slow excessively easily, making the tail end of yarns Y still be clipped under the situation of movable knife plate 11 is torn and residual one section yarn tail Y1 (seeing Fig. 1-2) earlier, and the yarn tail Y1 that this section is torn is released subsequently and when falling, be easy to along with knitting motion is brought among the fabric, and influence the quality of fabric.
Summary of the invention
Main purpose of the present invention is to provide a kind of color-changing device that is used in circular knitter, by color-changing device of the present invention, can avoid the generation of yarn tail, improves the quality of fabric.
According to the color-changing device of circular knitter of the present invention, comprise a controller, for a yarn unit and a driver element, its middle controller is driven by a kind of selector that moves around the department of knitting of circular knitter; Wherein: comprise two parts for the yarn unit, first part comprises a yarn change board, a first connecting rod and a second connecting rod, in order to yarn is fed to the position of eating yarn, second part comprises a movable knife plate and a drive link, in order under the situation of awaiting orders, clamping the end of yarn, and when changing yarn, cut off old yarn and make it break away from fabric and be returned to the situation of awaiting orders; Driver element and selector move around the department of knitting of circular knitter synchronously, driver element comprises one first group of cam and second group of cam, yarn change board and movable knife plate are independently of one another respectively by first group of cam and second group of cam institute interlock, wherein first group of cam and second group of cam include one and remove journey cam and return cam, the journey cam that goes in first group of cam is responsible for yarn change board is pushed into outside active position, and the journey cam that goes in second group of cam is responsible for movable knife plate is pushed into the outside yarn position of releasing; Return cam in first group of cam is responsible for yarn change board is returned to the not active position of normality, and the yarn clipping position that the return cam in second group of cam is responsible for movable knife plate is returned to normality.
Color-changing device according to circular knitter of the present invention utilizes different cams to drive yarn change board and movable knife plate respectively, even the position of two yarns is separated by far away when changing yarn, also can be by adjusting and the action sequence of controlling different cams, make old yarn regain apace and cut off, before being torn, new yarn just its tail end is discharged from movable knife plate then, thereby can prevent to pull apart yarn avoiding the generation of yarn tail, thereby can improve the quality of fabric.
Description of drawings
Fig. 1-1 shows the action of structure and the yarn change board and the movable knife plate of existing color-changing device to Fig. 1-4.
Fig. 2 is according to one of preferred embodiment of color-changing device of the present invention.
Fig. 3 is according to one of preferred embodiment of driver element of the present invention.
Fig. 4-1 shows the situation at the not active position of normality for the first in the yarn unit.
Fig. 4-2 shows for the situation of the second portion in the yarn unit in the yarn clipping position of normality.
Fig. 5-1,5-3,5-5,5-7 are the action series of color-changing device, show the continuous action of yarn change board.
Fig. 5-2,5-4,5-6,5-8 are the action series of color-changing device, show the continuous action of movable knife plate.
The relative position relation of eating yarn point of new and old yarn and knitting needle when Fig. 6 shows colour changing.
Fig. 7 shows the preferred embodiment structure that removes the journey cam of second group of cam.
The specific embodiment
Relevant detailed technology content of the present invention and preferred embodiment thereof, existing accompanying drawings is as follows.
As shown in Figure 2, the preferred embodiment of color-changing device disclosed in this invention structure comprises: controller 20, for yarn unit and driver element; Controller 20 wherein is to be promoted by a kind of selector 30 that moves around the department of knitting of circular knitter, selector 30 is a kind of electronic installations, have several normalities and be in the moving element 31 (its function is equivalent to cam) of inoperative position, by control circuit or central computer control, can allow moving element 31 move to a trigger position, in the time of near selector 30 passes through controller 20, utilize corresponding trigger 21 on moving element 31 sequential controllers 20 that arrive trigger position, and make trigger 21 move to enable position (enable position).
For the yarn unit, be fixedly mounted on the periphery of circular knitter, it comprises two parts, first part comprises yarn change board 40, first connecting rod 41 and second connecting rod 42, function is that yarns Y is fed to the position of eating yarn, second part comprises a movable knife plate 50 and a drive link 51, function is to clamp the end of yarns Y under the situation of awaiting orders, and when changing yarn, cut off old yarn so that break away from fabric and be returned to the situation of awaiting orders, and aforesaid controller 20 is exactly to be fixedly mounted on this top for the yarn unit; The preferred embodiment of these two parts is respectively described below.
They join end to end the yarn change board 40 of first, first connecting rod 41 and second connecting rod 42 each other and form a kind of three-link mechanism, and the yarns Y of several different colours is passed different yarn guiding ring 25 respectively, again the perforation 401 by yarn change board 40 front ends.First connecting rod 41 is just as a sledge sledge plate during normality, the head end of the tail end of first connecting rod 41 and second connecting rod 42 is of coupled connections, the middle upper part of first connecting rod 41 has a jut 412, often keep in touch the bottom of this jut 412 and first safety lever 22, and have respectively in the head end both sides of first connecting rod 41 one project upwards go journey projection 410 and outstanding backhaul projection 411 downwards; The tail end of second connecting rod 42 links to each other with the tail end coupling of yarn change board 40, the function of second connecting rod 42 is that the pulling force of first connecting rod 41 is transferred to yarn change board 40, and the pulling direction of first connecting rod 41 is done a conversion, move back and forth between the not active position (normal position) (seeing Fig. 4-1) of normality and the active position (external position) (seeing Fig. 5-3) that protrudes into the outside in order to interlock yarn change board 40; First also has one first flexible member 43 and one second flexible member 44, one end of first flexible member 43 is fixed on side plate 24, the other end supports first connecting rod 41 from the position of close its head end in below of first connecting rod 41, therefore, when deflecting to enable position, trigger 21 (sees Fig. 5-1), because the strength that first flexible member 43 is upwards pushed, the head end of first connecting rod 41 upwards will be promoted, simultaneously also first safety lever 22 is moved to unlocked position, cause the journey projection 410 emersion side plates 24 that go of first connecting rod 41 to arrive the standby position that preparation is pushed out; In addition, second flexible member 44, its effect is also the same with first flexible member 43, by the mode from yarn change board 40 supported underneath, assists first flexible member 43 to supply the required elastic force in yarn unit.
Coupling links to each other the tail end of the movable knife plate 50 of second portion with the tail end of drive link 51, the middle upper part of drive link 51 has a jut 512, often keep in touch the bottom of this jut 512 and second safety lever 23, and also have respectively in the head end both sides of drive link 51 one project upwards go journey projection 510 and outstanding backhaul projection 511 downwards; In order to the movable knife plate 50 of interlock the yarn clipping position of normality (holding position) (seeing Fig. 4-2) with protrude into releasing between the yarn position (release position) (seeing Fig. 5-4) of outside and move back and forth; Second portion also has one the 3rd flexible member 52, one end of the 3rd flexible member 52 is fixed on side plate 24, the other end supports drive link 51 from the position of close its head end in below of drive link 51, therefore, when deflecting to enable position, trigger 21 (sees Fig. 5-2), because the strength that the 3rd flexible member 52 is upwards pushed, the head end of drive link 51 upwards will be promoted, simultaneously also second safety lever 23 is moved to unlocked position, cause the journey projection 510 emersion side plates 24 that go of drive link 51 to arrive the standby position that preparation is pushed out.
Driver element comprises 60, the second groups of cams 70 of first group of cam, and playback cam 80, and they are installed in a loading plate 90 (see figure 3)s with selector 30, and moves around the department of knitting of circular knitter synchronously with selector 30; Arbitrary group of cam 60 wherein, 70 have included one removes journey cam 61,71 (forward cam) and return cam 62,72 (backward cam), the journey cam 61 that goes in first group of cam 60 is responsible for yarn change board 40 is pushed into outside active position, and the journey cam 71 that goes in second group of cam 70 is responsible for movable knife plate 50 is pushed into the outside yarn position of releasing; Return cam 62 in first group of cam 60 is responsible for yarn change board 40 is returned to the not active positions of normality, and the yarn clipping positions that the return cam 72 in second group of cam 70 is responsible for yarn clipping/yarn cutting plate 50 is returned to normality, when the yarn clipping position, the hook portion 502 of movable knife plate 50 front ends can be clipped in the tail end of yarns Y between hook portion 502 and the side plate 24.
And its actual manner of execution is done one with Fig. 5-1 to Fig. 5-8 now and is described as follows.
At first, shown in Fig. 5-1, the moving element 31 of selector 30, move to a trigger position by the control of control circuit or central computer, and selector by controller 20 near the time, the moving element 31 that arrives trigger position will touch second nose 214 of corresponding trigger 21, because the height and position of second nose 214 of each trigger 21 is also inequality, so can utilize moving element different in the selector 30 31 to touch second nose 214 of corresponding trigger 21, and then make trigger 21 move to enable position; And this moment, first safety lever 22 moves to unlocked position, cause the journey projection 410 emersion side plates 24 that go of first connecting rod 41 to arrive the standby position that preparation is pushed out, the same time, the journey projection 510 of going of drive link 51 also can arrive the standby position (seeing Fig. 5-2) that preparation is pushed out by emersion side plate 24.
Then, driver element moves to for the yarn unit, first inclined-plane 610 that removes journey cam 61 in this moment first group of cam 60 can touch with the journey projection 410 of going of first connecting rod 41, in order to drive first connecting rod 41 and second connecting rod 42 yarn change board 40 is pushed into outside active position (seeing Fig. 5-3); In addition, first inclined-plane 710 that removes journey cam 71 in second group of cam 70 also can touch with the journey projection 510 of going of drive link 51, in order to drive drive link 51 and then movable knife plate 50 is pushed into the outside yarn position (seeing Fig. 5-4) of releasing.
When playback cam 80 moves to controller 20 once again, the leading portion inclined-plane 801 of playback cam 80 is the playback nose 212 of close trigger 21 gradually, playback the then back segment plane 802 of cam 80 will push back to trigger 21 locked position of coupler of normality, the below (seeing Fig. 5-5) that causes the backhaul projection 411 of first connecting rod 41 to expose side plate 24, at the same time, the backhaul projection 511 of drive link 51 also can be exposed (seeing Fig. 5-6) from the below of side plate 24.
At last, driver element moves to once again for the yarn unit, first inclined-plane 620 of the return cam 62 in this moment first group of cam 60 can touch with the backhaul projection 411 of first connecting rod 41, yarn change board 40 is returned to the not active position (seeing Fig. 5-7) of normality in order to drive first connecting rod 41 and second connecting rod 42; In addition, first inclined-plane 720 of the return cam 72 in second group of cam 70 also can touch with the backhaul projection 511 of drive link 51, in order to drive drive link 51 and then movable knife plate 50 to be returned to the yarn clipping position (seeing Fig. 5-8) of normality, this moment, the hook portion 502 of yarn clipping/yarn cutting plate 50 front ends was clipped between hook portion 502 and the side plate 24 except the tail end of meeting with yarns Y, also can simultaneously yarns Y be cut off.
Wherein the return cam 72 actuation time to each other poor (time difference when when just first inclined-plane 620 touches backhaul projection 411 and first inclined-plane 720 touches backhaul projection 511) in the return cam 62 in first group of cam 60 and the second group of cam 70 can optionally be adjusted, feasible mode is that adjustment return cam 62 and return cam 72 are installed in cam chair 63 respectively, with 64 on the position, such design can be when variable color (changing yarn), make old yarn regain apace and cut off, before being torn, new yarn just its tail end is discharged from movable knife plate then, prevent to pull apart yarn, avoiding the generation of yarn tail, and then improve the braiding quality of fabric.
In second group of cam 70 shown in Fig. 3, remove journey cam 71, its preferred embodiment is a kind of two-period form cam, include a stationary cam 73, with a movable cam 74, first inclined-plane 710 is positioned at the front end of stationary cam 73, and also have another second inclined-plane 730 at movable cam 74, wherein stationary cam 73 is positioned at different height with movable cam 74, movable cam 74 is fixed on journey cam 71 by a bolt 741, after the release bolt 71, can adjust the position of movable cam 74 with respect to stationary cam 73; And aforementioned several drive link for the yarn unit go the journey projection also to divide into different two kinds of height to remove journey projection 510 and 510a, can be fixed first inclined-plane 710 of cam 73 of journey projection 510 that goes wherein promotes, and goes journey projection 510a then can be promoted by second inclined-plane 730 of movable cam 74.
Seeing also Fig. 6, is example with six look color-changing devices, supposes that old yarn is No. six yarn 6, and new yarn is a number one yarn 1; When knitting needle move to shown in the figure eat yarn point the time, for fear of old yarn because too late by movable knife plate 50 releases, the position of movable cam 74 can be moved forward, make contact time of second inclined-plane 730 and backhaul projection 511, do sth. in advance to t2 by the time point t1 among Fig. 7, so just can change the time that discharges old yarn, prevent that old yarn 6 is torn.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the color-changing device of a circular knitter comprises a controller, for a yarn unit and a driver element, and wherein said controller is driven by a kind of selector that moves around the department of knitting of circular knitter; It is characterized in that:
The described yarn unit that supplies comprises two parts, first part comprises a yarn change board, a first connecting rod and a second connecting rod, in order to yarn is fed to the position of eating yarn, second part comprises a movable knife plate and a drive link, in order under the situation of awaiting orders, clamping the end of described yarn, and when changing yarn, cut off old yarn and make it break away from fabric and be returned to the situation of awaiting orders;
Described driver element and described selector move around the department of knitting of circular knitter synchronously, described driver element comprises one first group of cam and second group of cam, described yarn change board and described movable knife plate are independently of one another respectively by described first group of cam and second group of cam institute interlock, wherein said first group of cam and described second group of cam include one and remove journey cam and return cam, the journey cam that goes in described first group of cam is responsible for described yarn change board is pushed into outside active position, and the journey cam that goes in described second group of cam is responsible for described movable knife plate is pushed into the outside yarn position of releasing; Return cam in described first group of cam is responsible for described yarn change board is returned to the not active position of normality, and the yarn clipping position that the return cam in described second group of cam is responsible for described movable knife plate is returned to normality.
2. the color-changing device of circular knitter according to claim 1, it is characterized in that, the head end both sides of described first connecting rod have respectively one project upwards go the journey projection, and outstanding downwards backhaul projection, the described journey projection of going is driven by the journey cam that goes in described first group of cam, and described backhaul projection is driven by the return cam in described first group of cam; The coupling of the tail end of described second connecting rod and the tail end of described yarn change board links to each other, in order to the described yarn change board of interlock at the not active position of normality and protrude between the active position of outside and move back and forth.
3. the color-changing device of circular knitter according to claim 1, it is characterized in that, coupling links to each other the tail end of the movable knife plate of described second portion with the tail end of described drive link, the head end both sides of described drive link also have respectively one project upwards one go the journey projection, an and outstanding downwards backhaul projection, the described journey projection of going is driven by the journey cam that goes in described second group of cam, and described backhaul projection is driven by the return cam in described second group of cam; In order to the described movable knife plate of interlock in the yarn clipping position of normality and protrude into outside releasing between the yarn position and move back and forth.
4. the color-changing device of circular knitter according to claim 1, it is characterized in that, the described journey cam that goes in described second group of cam comprises a stationary cam and a movable cam, the front end of described stationary cam has first inclined-plane, and described movable cam has another second inclined-plane, and described stationary cam is positioned at different height with described movable cam; And aforementioned several described drive link for the yarn unit go the journey projection to have different two kinds of height to go the journey projection, the wherein higher journey projection of going can be promoted by first inclined-plane of described stationary cam, and the lower described journey projection of going can be promoted by second inclined-plane of described movable cam.
5. the color-changing device of circular knitter according to claim 4, it is characterized in that, described movable cam, loosens after the described bolt in the described journey cam that goes by a bolting, can adjust the position of described movable cam with respect to described stationary cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101172398A CN100547138C (en) | 2005-10-31 | 2005-10-31 | The color-changing device of circular knitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101172398A CN100547138C (en) | 2005-10-31 | 2005-10-31 | The color-changing device of circular knitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1958907A CN1958907A (en) | 2007-05-09 |
| CN100547138C true CN100547138C (en) | 2009-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101172398A Expired - Fee Related CN100547138C (en) | 2005-10-31 | 2005-10-31 | The color-changing device of circular knitter |
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| CN (1) | CN100547138C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010019032A1 (en) * | 2010-05-03 | 2011-11-03 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Thread finger for a thread changing device |
| BE1022320B1 (en) | 2014-12-19 | 2016-03-16 | Lava, Besloten Vennootschap Met Beperkte Aansprakelijkheid | Double jersey knit fabric with yarn selection |
| CN106319745B (en) * | 2015-06-15 | 2018-12-14 | 佰龙机械厂股份有限公司 | The yarn-gripping and yarn-cutting structure of the color-changing device of circular knitter |
| CN109898224A (en) * | 2019-03-08 | 2019-06-18 | 台山市元凯精密机械有限公司 | A kind of automatic yarn-changing color changing head structure and knitting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB511451A (en) * | 1938-02-19 | 1939-08-18 | Saml Davis & Sons Ltd | Improvements in or relating to circular knitting machines |
| GB1556659A (en) * | 1976-12-22 | 1979-11-28 | Wildt Mellor Bromley Ltd | Yarn feeder changing unit |
| EP0319444A2 (en) * | 1987-12-04 | 1989-06-07 | Jumberca, S.A. | Striping system for a circular knitting machine |
| EP0863239A2 (en) * | 1997-02-19 | 1998-09-09 | Precision Fukuhara Works, Ltd | Yarn feeding and changing mechanism for a circular knitting machine |
| CN1464085A (en) * | 2002-06-28 | 2003-12-31 | 佰龙机械厂股份有限公司 | Color bleeding apparatus of tubular knitting machine |
-
2005
- 2005-10-31 CN CNB2005101172398A patent/CN100547138C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB511451A (en) * | 1938-02-19 | 1939-08-18 | Saml Davis & Sons Ltd | Improvements in or relating to circular knitting machines |
| GB1556659A (en) * | 1976-12-22 | 1979-11-28 | Wildt Mellor Bromley Ltd | Yarn feeder changing unit |
| EP0319444A2 (en) * | 1987-12-04 | 1989-06-07 | Jumberca, S.A. | Striping system for a circular knitting machine |
| EP0863239A2 (en) * | 1997-02-19 | 1998-09-09 | Precision Fukuhara Works, Ltd | Yarn feeding and changing mechanism for a circular knitting machine |
| CN1464085A (en) * | 2002-06-28 | 2003-12-31 | 佰龙机械厂股份有限公司 | Color bleeding apparatus of tubular knitting machine |
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| Publication number | Publication date |
|---|---|
| CN1958907A (en) | 2007-05-09 |
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