EP3103905B1 - Yarn clipping and cutting structure for a striping apparatus of a circular knitting machine - Google Patents
Yarn clipping and cutting structure for a striping apparatus of a circular knitting machine Download PDFInfo
- Publication number
- EP3103905B1 EP3103905B1 EP15171550.5A EP15171550A EP3103905B1 EP 3103905 B1 EP3103905 B1 EP 3103905B1 EP 15171550 A EP15171550 A EP 15171550A EP 3103905 B1 EP3103905 B1 EP 3103905B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- blade
- clipping
- yarn clipping
- cutting
- 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
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Classifications
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- 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 striping apparatus of knitting machines and particularly to a striping apparatus for a circular knitting machine.
- striping apparatus on a circular knitting machine is a technique known in the art.
- the circular knitting machine that adopts the striping apparatus will have changes on installation.
- the striping apparatus can generally be divided into vertical types and horizontal types.
- U.S. patent No. 6,655,176 entitled “Striping apparatus for a circular knitting machine” and No. 5,070,709 entitled “Striping system for circular knitting machine” disclose respectively a vertical striping apparatus to feed different colored yarns into a knitting machine
- U.S. patent No. 5,218,845 entitled “Circular knitting machine striper control system” and No. 7,036,343 entitled “Striping apparatus of a circular knitting machine” disclose respectively a horizontal striping apparatus and a controller used on a knitting machine.
- EP 2 363 519 A1 and DE 16 35 868 A1 disclose yarn gripping and cutting devices.
- the primary object of the present invention is to solve the disadvantages and problems of the conventional techniques to make sure that colored yarns are securely clipped and cut off at merely one side to prevent yarn dropping or generation of yarn debris, and reduce product defects and enhance knitting operation stability of knitting needles.
- Another object of the invention is to maintain the original thickness of yarn clipping and cutting mechanism of the striping apparatus to facilitate installation of the striping apparatus on the circular knitting machine that have a greater number of yarn feeding ports.
- the present invention provides a yarn clipping and cutting structure for a striping apparatus of a circular knitting machine according to independent claim 1 that is installed on a circular knitting machine and driven by operation thereof.
- the striping apparatus includes a plurality of yarn clipping and cutting structures.
- Each yarn clipping and cutting structure has among others features as follow: it has two yarn clipping and cutting drive blades that abut each other and can be driven synchronously.
- a first yarn clipping and cutting drive blade has one side with a yarn feeding blade located thereon.
- the first yarn clipping and cutting drive blade and the yarn feeding blade are interposed by a yarn clipping blade in contact with the first yarn clipping and cutting drive blade.
- the first yarn clipping and cutting drive blade has a first end edge formed a first yarn picking portion.
- the yarn picking portion has a directing section movable against the yarn clipping blade to perform yarn clipping operation.
- a second yarn clipping and cutting drive blade has another side opposing the yarn clipping blade with a yarn cutting blade located thereon in contact with the second yarn clipping and cutting drive blade.
- the second yarn clipping and cutting drive blade has a second end edge formed a second yarn picking portion.
- the second yarn picking portion forms a yarn clipping movement against the yarn cutting blade and has a spaced section formed an elevation difference against the directing section.
- the directing section has a first directing sloped surface close to the yarn clipping blade.
- the directing section has a second directing sloped surface close to the spaced section.
- the yarn clipping and cutting drive blades are integrally formed.
- the yarn clipping and cutting drive blade of the invention can form a yarn clipping safety buffer section during yarn clipping and cutting process, hence can prevent colored yarns from dropping from the yarn clipping blade while the circular knitting machine is in high speed operation with the colored yarns being stretched.
- the first directing sloped surface formed between the directing section of the yarn picking portion and the yarn clipping blade and side angle cut off With the first directing sloped surface formed between the directing section of the yarn picking portion and the yarn clipping blade and side angle cut off, rupturing of the colored yarn during the yarn clipping operation can be prevented.
- the yarn picking portion and the yarn cutting blade at another side perform yarn cutting operation, therefore the yarn is cut off only at one side, and can prevent generation of yarn debris and improve the quality of knitting fabrics.
- the invention provides a yarn clipping and cutting structure for a striping apparatus 1 (a vertical type in this embodiment) installed on a circular knitting machine (at a position which can be referred to the prior arts mentioned previously), and driven by operation of the circular knitting machine.
- the striping apparatus 1 has two sides each has an outer cover plate 10 located thereon, and a plurality of yarn clipping and cutting structures 2 located between the two outer cover plates 10.
- the yarn clipping and cutting structures 2 can be interposed by an isolation blade 7 between them (also can be omitted in this embodiment).
- Each yarn clipping and cutting structure 2 includes two yarn clipping and cutting drive blades that abut each other and are driven synchronously.
- a first yarn clipping and cutting drive blade 3a has one side with a yarn feeding blade 6 located thereon.
- the first yarn clipping and cutting drive blade 3a and the yarn feeding blade 6 are interposed by a yarn clipping blade 4 in contact with the first yarn clipping and cutting drive blade 3 a.
- the first yarn clipping and cutting drive blade 3a has a first end edge formed a first yarn picking portion 30a which has a directing section 31 movable against the yarn clipping blade 4 to perform yarn clipping operation.
- the directing section 31 has a first directing sloped surface 311 close to the yarn clipping blade 4 to prevent a colored yarn 8 from being ruptured during the yarn clipping operation, and a second directing sloped surface 312 close to a spaced section 32 that also can prevent the colored yarn 8 from being ruptured during the yarn clipping operation.
- a second yarn clipping and cutting drive blade 3b has another side with a yarn cutting blade 5 located thereon in contact with the second yarn clipping and cutting drive blade 3b.
- the second yarn clipping and cutting drive blade 3b has a second end edge formed a second yarn picking portion 30b which has the spaced section 32 formed thereon movable against the yarn cutting blade 5 and formed an elevation difference against the directing section 31.
- FIGS. 5 through 10 Please refer to FIGS. 5 through 10 for operation conditions of the yarn clipping and cutting structure of the invention.
- the first yarn picking portion 30a of the first yarn clipping and cutting drive blade 3a and the yarn clipping blade 4 tightly clip the colored yarn 8, and the colored yarn 8 also forms a yarn clipping safety buffer section 81 at the spaced section 32 to avoid the colored yarn 8 from escaping the yarn clipping blade 4.
- the colored yarn 8 at the directing section 31 first is in contact with the yarn clipping blade 4, and the first yarn picking portion 30a and the yarn clipping blade 4 start yarn clipping operation (referring to FIG.
- the spaced section 32 forms the yarn clipping safety buffer section 81 which can prevent the yarn from escaping the yarn clipping blade 4 and dropping while the striping apparatus 1 is in high speed operation.
- the first directing sloped surface 311 is formed between the directing section 31 and the yarn clipping blade 4, the first directing sloped surface 311 with the side corner cut off can prevent the colored yarn 8 from being ruptured by an acute angle during the yarn clipping operation.
- the technique provided by the invention performs yarn cutting operation via the second yarn picking portion 30b and the yarn cutting blade 5 after the colored yarn 8 has been clipped, hence a fully yarn clipping effect can be accomplished while yarn cutting is performed merely on a single side.
- the striping apparatus 1 of the invention can maintain the original thickness of the yarn clipping and cutting structures 2, therefore the striping apparatus 1 can be installed on an existing circular knitting machine to form a desired match with the circular knitting machine which includes a greater number of yarn feeding ports.
- FIGS. 11 and 12 Please refer to FIGS. 11 and 12 for another embodiment of the yarn clipping and cutting drive blade.
- the yarn clipping and cutting drive blade 3 in this embodiment differs by employing merely a single blade (integrated formed). Hence yarn clipping and cutting operation is performed synchronously by the yarn picking portion 30 of the yarn clipping and cutting drive blade 3.
- the invention also can be implemented as desired.
- the invention further provides a yarn clipping and cutting structure for a striping apparatus of a circular knitting machine.
- the striping apparatus 1 is installed on the circular knitting machine and driven by operation thereof.
- the striping apparatus 1 has two sides each has an outer cover plate 10 located thereon, and a plurality of yarn clipping and cutting structures 2 located between the two outer cover plates 10.
- the yarn clipping and cutting structures 2 can be interposed by an isolation blade 7 between them.
- Each yarn clipping and cutting structure 2 includes a yarn clipping and cutting drive blade 3 which has one side with a yarn feeding blade 6 located thereon, and a yarn clipping blade 4 located between the yarn clipping and cutting drive blades 3 and the yarn feeding blade 6.
- the yarn clipping blade 4 is in contact with the yarn clipping and cutting drive blade 3.
- the yarn clipping and cutting drive blade 3 has another side with a yarn cutting blade 5 located thereon in contact with the yarn clipping and cutting drive blade 3.
- the yarn clipping and cutting drive blade 3 has an end edge formed a yarn picking portion 30 which has a directing section 31 movable against the yarn clipping blade 4 to perform yarn clipping operation.
- the directing section 31 has a first directing sloped surface 311 close to the yarn clipping blade 4 and a second directing sloped surface 312 close to a spaced section 32.
- the spaced section 32 is movable against the yarn cutting blade 5 and formed an elevation difference against the directing section 31.
- FIGS. 13 through 16 Please refer to FIGS. 13 through 16 for operation conditions of the second embodiment of the yarn clipping and cutting structure of the invention.
- the second embodiment is a horizontal type.
- the second embodiment does not have the isolation blade 7 as the first embodiment does, but can be included as desired.
- the structural features and yarn clipping and cutting operation are same as that of the first yarn clipping and cutting drive blade 3 a and the second yarn clipping and cutting drive blade 3b previously discussed in the first embodiment, thus also is implementable as desired.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Description
- The present invention relates to a striping apparatus of knitting machines and particularly to a striping apparatus for a circular knitting machine.
- Using striping apparatus on a circular knitting machine is a technique known in the art. The circular knitting machine that adopts the striping apparatus, depending on their functional and structural differences, will have changes on installation. Based on this perspective, the striping apparatus can generally be divided into vertical types and horizontal types. For instance,
U.S. patent No. 6,655,176 entitled "Striping apparatus for a circular knitting machine" and No.5,070,709 entitled "Striping system for circular knitting machine" disclose respectively a vertical striping apparatus to feed different colored yarns into a knitting machine, whileU.S. patent No. 5,218,845 entitled "Circular knitting machine striper control system" and No.7,036,343 entitled "Striping apparatus of a circular knitting machine" disclose respectively a horizontal striping apparatus and a controller used on a knitting machine.
EP 2 363 519 A1DE 16 35 868 A1 disclose yarn gripping and cutting devices. - However, either the vertical or horizontal striping apparatus in the prior techniques still have flaws on their yarn clipping and cutting structure, notably:
- 1. They have a yarn picking portion on a yarn clipping and cutting drive blade and a yarn clipping blade with respectively an edge angle formed thereon that is prone to rupture colored yarns during yarn clipping operation, and after a yarn cutoff operation is finished by a yarn cutting blade at another side a small section of yarn debris is formed that is subsequently released by the yarn picking portion and drops, and easily being carried to the knitting fabric with knitting operation, and could affect fabric quality.
- 2. Moreover, the conventional yarn clipping structure does not provide colored yarn buffer design. In the event that the colored yarn is ruptured during the yarn clipping operation yarn dropping caused by insecure yarn clipping frequently takes place in the high speed operation of the striping apparatus.
- The primary object of the present invention is to solve the disadvantages and problems of the conventional techniques to make sure that colored yarns are securely clipped and cut off at merely one side to prevent yarn dropping or generation of yarn debris, and reduce product defects and enhance knitting operation stability of knitting needles.
- Another object of the invention is to maintain the original thickness of yarn clipping and cutting mechanism of the striping apparatus to facilitate installation of the striping apparatus on the circular knitting machine that have a greater number of yarn feeding ports.
- To achieve the foregoing objects the present invention provides a yarn clipping and cutting structure for a striping apparatus of a circular knitting machine according to
independent claim 1 that is installed on a circular knitting machine and driven by operation thereof. The striping apparatus includes a plurality of yarn clipping and cutting structures. Each yarn clipping and cutting structure has among others features as follow: it has two yarn clipping and cutting drive blades that abut each other and can be driven synchronously. A first yarn clipping and cutting drive blade has one side with a yarn feeding blade located thereon. The first yarn clipping and cutting drive blade and the yarn feeding blade are interposed by a yarn clipping blade in contact with the first yarn clipping and cutting drive blade. The first yarn clipping and cutting drive blade has a first end edge formed a first yarn picking portion. The yarn picking portion has a directing section movable against the yarn clipping blade to perform yarn clipping operation. A second yarn clipping and cutting drive blade has another side opposing the yarn clipping blade with a yarn cutting blade located thereon in contact with the second yarn clipping and cutting drive blade. The second yarn clipping and cutting drive blade has a second end edge formed a second yarn picking portion. The second yarn picking portion forms a yarn clipping movement against the yarn cutting blade and has a spaced section formed an elevation difference against the directing section. - In one aspect the directing section has a first directing sloped surface close to the yarn clipping blade.
- In another aspect the directing section has a second directing sloped surface close to the spaced section.
- In yet another aspect the yarn clipping and cutting drive blades are integrally formed. Through the techniques set forth above, compared with the convention techniques, the invention can achieve many advantageous effects, notably: 1. The yarn clipping and cutting drive blade of the invention can form a yarn clipping safety buffer section during yarn clipping and cutting process, hence can prevent colored yarns from dropping from the yarn clipping blade while the circular knitting machine is in high speed operation with the colored yarns being stretched. 2. With the first directing sloped surface formed between the directing section of the yarn picking portion and the yarn clipping blade and side angle cut off, rupturing of the colored yarn during the yarn clipping operation can be prevented. Moreover, after the colored yarn is clipped the yarn picking portion and the yarn cutting blade at another side perform yarn cutting operation, therefore the yarn is cut off only at one side, and can prevent generation of yarn debris and improve the quality of knitting fabrics.
- The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings.
-
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FIG. 1 is a perspective view of a first embodiment of the invention. -
FIG. 2 is an explode view according toFIG. 1 . -
FIG. 3 is a fragmentary enlarged view of a yarn clipping and cutting drive blade according toFIG. 1 . -
FIG. 4 is an enlarged top view according toFIG. 3 . -
FIGS. 5 through 10 are fragmentary schematic views showing consecutive operating conditions of the yarn clipping and cutting structure according toFIG. 1 . -
FIG. 11 is a fragmentary enlarged view of another embodiment of the yarn clipping and cutting drive blade of the invention according toFIG. 1 . -
FIG. 12 is a cross sectional view taken on line A-A inFIG. 11 . -
FIG. 13 is a perspective view of a second embodiment of the invention. -
FIG. 14 is an exploded view according toFIG. 13 . -
FIG. 15 is a fragmentary enlarged view of a yarn clipping and cutting drive blade according toFIG. 13 . -
FIG. 16 is an enlarged sectional view taken on line B-B inFIG. 15 . - Please refer to
FIGS. 1 through 5 for a first embodiment of the invention. The invention provides a yarn clipping and cutting structure for a striping apparatus 1 (a vertical type in this embodiment) installed on a circular knitting machine (at a position which can be referred to the prior arts mentioned previously), and driven by operation of the circular knitting machine. Thestriping apparatus 1 has two sides each has anouter cover plate 10 located thereon, and a plurality of yarn clipping andcutting structures 2 located between the twoouter cover plates 10. The yarn clipping andcutting structures 2 can be interposed by an isolation blade 7 between them (also can be omitted in this embodiment). Each yarn clipping andcutting structure 2 includes two yarn clipping and cutting drive blades that abut each other and are driven synchronously. A first yarn clipping and cuttingdrive blade 3a has one side with ayarn feeding blade 6 located thereon. The first yarn clipping and cuttingdrive blade 3a and theyarn feeding blade 6 are interposed by ayarn clipping blade 4 in contact with the first yarn clipping and cuttingdrive blade 3 a. The first yarn clipping and cuttingdrive blade 3a has a first end edge formed a firstyarn picking portion 30a which has adirecting section 31 movable against theyarn clipping blade 4 to perform yarn clipping operation. Thedirecting section 31 has a first directingsloped surface 311 close to theyarn clipping blade 4 to prevent acolored yarn 8 from being ruptured during the yarn clipping operation, and a second directing slopedsurface 312 close to a spacedsection 32 that also can prevent thecolored yarn 8 from being ruptured during the yarn clipping operation. A second yarn clipping and cuttingdrive blade 3b has another side with ayarn cutting blade 5 located thereon in contact with the second yarn clipping and cuttingdrive blade 3b. The second yarn clipping and cuttingdrive blade 3b has a second end edge formed a secondyarn picking portion 30b which has the spacedsection 32 formed thereon movable against theyarn cutting blade 5 and formed an elevation difference against thedirecting section 31. - Please refer to
FIGS. 5 through 10 for operation conditions of the yarn clipping and cutting structure of the invention. When the secondyarn picking portion 30b of the second yarn clipping and cuttingdrive blade 3b has finished yarn cutting operation as shown inFIG. 5 , the firstyarn picking portion 30a of the first yarn clipping and cuttingdrive blade 3a and theyarn clipping blade 4 tightly clip thecolored yarn 8, and thecolored yarn 8 also forms a yarn clippingsafety buffer section 81 at the spacedsection 32 to avoid thecolored yarn 8 from escaping theyarn clipping blade 4. When theyarn feeding blade 6 is moved and thecolored yarn 8 is stretched again, thecolored yarn 8 between the firstyarn picking portion 30a and theyarn clipping blade 4 does not drop before the first yarn clipping and cuttingdrive blade 3a and the second yarn clipping and cuttingdrive blade 3b are extended outwards synchronously (referring toFIG. 6 ). When the first yarn clipping and cuttingdrive blade 3a and the second yarn clipping and cuttingdrive blade 3b are extended outwards synchronously thecolored yarn 8 escapes between the firstyarn picking portion 30a and the yarn clipping blade 4 (referring toFIG. 7 ) until the first yarn clipping and cuttingdrive blade 3a and the second yarn clipping and cuttingdrive blade 3b are fully extended to perform yarn picking operation again to pick the colored yarn 8 (referring toFIG. 8 ); after the first yarn clipping and cuttingdrive blade 3 a and the second yarn clipping and cuttingdrive blade 3b have picked the yarn and retracted and proceed the yarn clipping and cutting operation, thecolored yarn 8 at thedirecting section 31 first is in contact with theyarn clipping blade 4, and the firstyarn picking portion 30a and theyarn clipping blade 4 start yarn clipping operation (referring toFIG. 9 ); while the firstyarn picking portion 30a continues the yarn clipping operation thecolored yarn 8 is interposed between theyarn clipping blade 4 and the firstyarn picking portion 30a on a secure yarn clipping movement; next, yarn cutting operation takes place on thecolored yarn 8 after the secondyarn picking portion 30b is in contact with theyarn cutting blade 5 until thecolored yarn 8 is fully cut off and thecolored yarn 8 is fully clipped by theyarn clipping blade 4 and the firstyarn picking portion 30a (referring toFIG. 10 ). It is to be noted that while the first yarn clipping and cuttingdrive blade 3 a and the second yarn clipping and cuttingdrive blade 3b perform the yarn clipping and cutting process previously discussed, the spacedsection 32 forms the yarn clippingsafety buffer section 81 which can prevent the yarn from escaping theyarn clipping blade 4 and dropping while thestriping apparatus 1 is in high speed operation. In addition, the first directing slopedsurface 311 is formed between the directingsection 31 and theyarn clipping blade 4, the first directing slopedsurface 311 with the side corner cut off can prevent thecolored yarn 8 from being ruptured by an acute angle during the yarn clipping operation. Furthermore, the technique provided by the invention performs yarn cutting operation via the secondyarn picking portion 30b and theyarn cutting blade 5 after thecolored yarn 8 has been clipped, hence a fully yarn clipping effect can be accomplished while yarn cutting is performed merely on a single side. As a result, generation of yarn debris can be avoided and quality of knitting fabrics can be improved. Moreover, thestriping apparatus 1 of the invention can maintain the original thickness of the yarn clipping and cuttingstructures 2, therefore thestriping apparatus 1 can be installed on an existing circular knitting machine to form a desired match with the circular knitting machine which includes a greater number of yarn feeding ports. - Please refer to
FIGS. 11 and 12 for another embodiment of the yarn clipping and cutting drive blade. Compared with the first yarn clipping and cuttingdrive blade 3 a and the second yarn clipping and cuttingdrive blade 3b shown inFIGS. 1 through 10 , the yarn clipping and cuttingdrive blade 3 in this embodiment differs by employing merely a single blade (integrated formed). Hence yarn clipping and cutting operation is performed synchronously by theyarn picking portion 30 of the yarn clipping and cuttingdrive blade 3. The invention also can be implemented as desired. Thus, the invention further provides a yarn clipping and cutting structure for a striping apparatus of a circular knitting machine. Thestriping apparatus 1 is installed on the circular knitting machine and driven by operation thereof. Thestriping apparatus 1 has two sides each has anouter cover plate 10 located thereon, and a plurality of yarn clipping and cuttingstructures 2 located between the twoouter cover plates 10. The yarn clipping and cuttingstructures 2 can be interposed by an isolation blade 7 between them. Each yarn clipping and cuttingstructure 2 includes a yarn clipping and cuttingdrive blade 3 which has one side with ayarn feeding blade 6 located thereon, and ayarn clipping blade 4 located between the yarn clipping and cuttingdrive blades 3 and theyarn feeding blade 6. Moreover, theyarn clipping blade 4 is in contact with the yarn clipping and cuttingdrive blade 3. The yarn clipping and cuttingdrive blade 3 has another side with ayarn cutting blade 5 located thereon in contact with the yarn clipping and cuttingdrive blade 3. The yarn clipping and cuttingdrive blade 3 has an end edge formed ayarn picking portion 30 which has a directingsection 31 movable against theyarn clipping blade 4 to perform yarn clipping operation. The directingsection 31 has a first directing slopedsurface 311 close to theyarn clipping blade 4 and a second directing slopedsurface 312 close to a spacedsection 32. The spacedsection 32 is movable against theyarn cutting blade 5 and formed an elevation difference against the directingsection 31. - Please refer to
FIGS. 13 through 16 for operation conditions of the second embodiment of the yarn clipping and cutting structure of the invention. Compared with the first embodiment the second embodiment is a horizontal type. In addition, the second embodiment does not have the isolation blade 7 as the first embodiment does, but can be included as desired. It is to be noted that, as shown inFIGS. 15 and 16 , the structural features and yarn clipping and cutting operation are same as that of the first yarn clipping and cuttingdrive blade 3 a and the second yarn clipping and cuttingdrive blade 3b previously discussed in the first embodiment, thus also is implementable as desired.
Claims (4)
- A yarn clipping and cutting structure for a striping apparatus (1) installed on a circular knitting machine, the striping apparatus (1) being driven by operation of the circular knitting machine and including a plurality of yarn clipping and cutting structures (2), each yarn clipping and cutting structure (2) comprising:a first yarn clipping and cutting drive blade (3 a) and a second yarn clipping and cutting drive blade (3b) that abut each other and are driven synchronously, the first yarn clipping and cutting drive blade (3a) being bordered by a yarn feeding blade (6) configured to lead a colored yarn (8) at one side, the first yarn clipping and cutting drive blade (3a) and the yarn feeding blade (6) being interposed by a yarn clipping blade (4) in contact with the first yarn clipping and cutting drive blade (3a), the first yarn clipping and cutting drive blade (3 a) including a first end edge formed a first yarn picking portion (30a) moving against the yarn clipping blade (4) to perform a yarn clipping operation, the second yarn clipping and cutting drive blade (3b) being in contact with a yarn cutting blade (5) at another side opposing the yarn clipping blade (4), the second yarn clipping and cutting drive blade (3b) including a second end edge formed a second yarn picking portion (30b) moving against the yarn cutting blade (5) to perform the yarn cutting operation, the first yarn picking portion (30a) including a directing section (31) configured to carry the colored yarn (8) and configured to curve the colored yarn (8) to form a turning point on the colored yarn (8) during performing the yarn clipping operation; wherein the yarn clipping and cutting structure is characterized by;the second yarn clipping and cutting drive blade (3b) including a spaced section (32) forming an elevation difference against the directing section (31) between the second yarn picking portion (30b) and the first yarn picking portion (30a) being configured to form a yarn clipping safety buffer section (81) beyond the turning point.
- The yarn clipping and cutting structure of claim 1, wherein the directing section (31) includes a first directing sloped surface (311) proximate the yarn clipping blade (4).
- The yarn clipping and cutting structure of claim 2, wherein the directing section (31) includes a second directing sloped surface (312) proximate the spaced section (32).
- The yarn clipping and cutting structure of claim 2, wherein the a first yarn clipping and cutting drive blade 3a and a second yarn clipping and cutting drive blade 3b are integrally formed.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15171550.5A EP3103905B1 (en) | 2015-06-11 | 2015-06-11 | Yarn clipping and cutting structure for a striping apparatus of a circular knitting machine |
TR2018/02784T TR201802784T4 (en) | 2015-06-11 | 2015-06-11 | Yarn trimming and cutting structure for a strip drawing device of a circular knitting machine. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15171550.5A EP3103905B1 (en) | 2015-06-11 | 2015-06-11 | Yarn clipping and cutting structure for a striping apparatus of a circular knitting machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3103905A1 EP3103905A1 (en) | 2016-12-14 |
EP3103905B1 true EP3103905B1 (en) | 2017-12-06 |
Family
ID=53373353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15171550.5A Not-in-force EP3103905B1 (en) | 2015-06-11 | 2015-06-11 | Yarn clipping and cutting structure for a striping apparatus of a circular knitting machine |
Country Status (2)
Country | Link |
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EP (1) | EP3103905B1 (en) |
TR (1) | TR201802784T4 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2618951A (en) * | 1952-11-25 | Cutting means | ||
US1951842A (en) * | 1934-03-20 | Knitting machine | ||
DE1635868C3 (en) * | 1967-09-18 | 1975-02-20 | Mayer & Cie Maschinenfabrik, 7477 Tailfingen | Thread changing device for knitting machines |
ES2006232A6 (en) | 1987-12-04 | 1989-04-16 | Jumberca Sa | Striping system for a circular knitting machine. |
US5218845A (en) | 1992-12-07 | 1993-06-15 | Wang Ping S | Circular knitting machine striper control system |
IT1312329B1 (en) * | 1999-05-26 | 2002-04-15 | Mecmor Spa | DEVICE FOR SELECTIVE FEEDING OF WIRES IN BINDING MACHINES OR SIMILAR. |
US6655176B1 (en) | 2002-06-27 | 2003-12-02 | Pai Lung Machinery Mill Co., Ltd. | Striping apparatus for circular knitting machines |
US7036343B1 (en) | 2005-11-07 | 2006-05-02 | Pai Lung Machinery Co., Ltd. | Striping apparatus of a circular knitting machine |
IT1398548B1 (en) * | 2010-03-05 | 2013-03-01 | Santoni & C Spa | DEVICE FOR STAPPING AND CUTTING OF THE WIRE, PARTICULARLY FOR RIMATILE GUIDES FOR KNITTING MACHINES OR SIMILAR. |
-
2015
- 2015-06-11 EP EP15171550.5A patent/EP3103905B1/en not_active Not-in-force
- 2015-06-11 TR TR2018/02784T patent/TR201802784T4/en unknown
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP3103905A1 (en) | 2016-12-14 |
TR201802784T4 (en) | 2018-03-21 |
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