EP3608461B1 - Plattierstrickverfahren für flachstrickmaschine - Google Patents

Plattierstrickverfahren für flachstrickmaschine Download PDF

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Publication number
EP3608461B1
EP3608461B1 EP18781123.7A EP18781123A EP3608461B1 EP 3608461 B1 EP3608461 B1 EP 3608461B1 EP 18781123 A EP18781123 A EP 18781123A EP 3608461 B1 EP3608461 B1 EP 3608461B1
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EP
European Patent Office
Prior art keywords
yarn
plating
knitting
inverse
needle
Prior art date
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Application number
EP18781123.7A
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English (en)
French (fr)
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EP3608461A1 (de
EP3608461A4 (de
Inventor
Reiji Arikita
Masao Okuno
Hirotoshi Yamano
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Shima Seiki Mfg Ltd
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Shima Seiki Mfg Ltd
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Publication of EP3608461A1 publication Critical patent/EP3608461A1/de
Publication of EP3608461A4 publication Critical patent/EP3608461A4/de
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/102—Patterned fabrics or articles with stitch pattern
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/24—Flat-bed knitting machines with independently-movable needles for producing patterned fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • 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
    • D04B15/06—Sinkers
    • 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
    • D04B15/56—Thread guides for flat-bed knitting machines
    • 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
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D04B15/70—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used in flat-bed knitting machines
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/01—Surface features
    • D10B2403/011—Dissimilar front and back faces
    • D10B2403/0114—Dissimilar front and back faces with one or more yarns appearing predominantly on one face, e.g. plated or paralleled yarns

Definitions

  • the present invention relates to a method of knitting for plating stitch to use two types of knitting yarns by a flatbed knitting machine, which makes it possible to switch from ordinary plating in which one knitting yarn as a main yarn covers the other knitting yarn as a plating yarn, to inverse plating in which the plating yarn and the main yarn are inverted in the mid-course of the ordinary plating.
  • Knitting needles for knitting a fabric by a flatbed knitting machine are aligned with a constant pitch in the longitudinal direction of needle beds. At least two needle beds are used facing each other. The space between the needle beds facing each other is called needle bed gap.
  • the fabric is knitted with a knitting yarn fed from a yarn feeding port running above the needle bed gap in the longitudinal direction of the needle beds to a hook of a knitting needle.
  • Knitting for plating stitch by a flatbed knitting machine is performed by feeding two types of knitting yarns different in appearance from one or two yarn feeders which run above a needle bed gap in a longitudinal direction of needle beds to each hook of needle.
  • the feeding of the knitting yarns is performed by using two yarn feeders each of which has a single yarn feeding port or by using one yarn feeder dedicated for plating to have a double yarn feeding port.
  • the two types of knitting yarns are respectively placed on the lower side and the upper side on the hook as far as knitting conditions such as tensile force are appropriately kept, and constitute a main yarn exposed to the surface of the knitted fabric and a plating yarn covered with the main yarn.
  • the two types of knitting yarn can form patterns in the knitted fabric by changing the running order to switch upside and downside in the hook between the main yarn and the plating yarn.
  • the change of the running order of the two yarn feeding ports is possible during one course of knitting but cannot be done instantaneously. Changing the running order while continuing to knit, causes the switching between the main yarn and the plating yarn over in a section of a plurality of stitches to make unclear a boundary between patterns. If knitting would be stopped once at a boundary between patterns and resumed after changing the running order of the yarn feeding ports, the boundary between the patterns could be clarified.
  • the change of the running order of the yarn feeding ports would require an operation including an inversion of the running direction of a carriage equipped with a cam for driving the knitting needles, thereby leading to deterioration in knitting efficiency.
  • Patent Citation 1 proposes a method of switching between the ordinary plating and the inverse plating by using a swing-type movable sinker (refer to paragraphs 0016 and 0017, although the ordinary plating and the inverse plating are respectively described as standard plating and yarn-replaced plating).
  • the movable sinker according to this proposition has a convex portion and a concave groove which are formed on the upper side of the part for making a stitch (refer to Patent Citation 1, Fig. 3 and others).
  • the movable sinker is swung such that the main yarn to start to be pulled in by the hook of the knitting needle contacts the convex portion.
  • the main yarn is raised toward the concave groove to exchange the vertical positions of the main yarn and the plating yarn, and then the main yarn and the plating yarn exchanged in vertical position are pulled in by the hook (refer to Patent Citation 1, paragraph 0034).
  • the pull-in operation of the knitting needle is delayed such that, even when the movable sinker is swung, the main yarn and the plating yarn are not pulled in by the hook (refer to Patent Citation 1, paragraphs 0023 and 0024).
  • the switching between the ordinary plating and the inverse plating is performed by switching between two routes prepared for pull-in stitching operation of the knitting needle while the movable sinker operates in an unchanged manner (refer to Patent Citation 1, Figs. 2 and 11).
  • Patent Citation 1 Japanese Patent No. 2016-176159 A
  • the pull-in by the knitting needle for the inverse plating is performed earlier than the pull-in by the knitting needle for the ordinary plating. Therefore, in the vicinity of a boundary between the section of the pull-in by the knitting needle for the ordinary plating and the section of the pull-in by the knitting needle for the inverse plating, the size of the stitch in the following inverse plating is determined earlier during the formation of the stitch of the preceding ordinary plating.
  • the ordinary plating stitch the size of which is determined later, is formed with feeding of the knitting yarn through the inverse plating stich, the size of which has been already determined, and thus excessive tensile force is applied to the knitting yarn that may become broken accordingly.
  • the movable sinker swings even during the pull-in of the knitting yarn by the hook of the knitting needle (refer to Patent Citation 1, Figs. 14 to 17), and it is thus presumed that some adverse effect might be exerted on the stability of the stitches and the quality of the knitted fabric. Further, the need to prepare the two routes for the pull-in stitching operation of the knitting needle may result in complicated needle selection and a wider cam system for driving the knitting needles.
  • Prior art document US 1 977 590 A discloses a method of knitting plating stitch using a special form of sinker which manipulates the yarns in such manner that the needles in the course of their regular movements reverse the plating whenever required for the desired pattern.
  • the needles are permitted to do the reversing, but the yarns have their feeding position varied - though not reversed - not by the positions of the needles relatively to each other but by means of the manipulation of certain novel sinkers.
  • These sinkers can each be specially manipulated in such a manner as to cause the needles on either side of it to reverse the yarns; and this special manipulation can be given or not as desired from course to course.
  • An object of the present invention is to provide a method of knitting for plating stitch by a flatbed knitting machine, in which only a single route of pull-in by the knitting needle is sufficient, and switching is allowed between the ordinary plating and the inverse plating even in the mid-course of knitting.
  • the present invention is a method of knitting plating stitch in a flatbed knitting machine that is switchable between ordinary plating and inverse plating to knit plating stitch, in which by using a flatbed knitting machine which is provided with local members including sinkers and lining up along the needle bed gap side of the needle bed, the ordinary plating is performed such that a main yarn and a plating yarn are fed to the same knitting needle while being kept at vertical lower and upper positions so that the main yarn is on a front side, and the inverse plating is performed such that vertical positions of the main yarn and the plating yarn to be fed to the knitting needle are inverted and the plating yarn is on the front side,
  • said knitting needle (3), said operating member and then said local member are arranged in this order in that knitting direction, and
  • said inverse wall has an upward inclination which is lower on said needle bed gap side and is higher on a side leaving from the needle bed gap, and for knitting said inverse plating, while the yarns are guided from said operating part to the inverse wall side such that said main yarn aligns with said plating yarn and lies nearer than the plating yarn to the inverse wall, pulling the yarns into said hook such that the main yarn is on the upper side and the plating yarn is on the lower side so that the vertical positions are inverted.
  • said operating part of said operating member is provided at the lower portion of the operating member, and operating on said main yarn and said plating yarn from above in the inverse plating to press the plating yarn into a lower side of the main yarn so that the vertical positions are inverted.
  • said main yarn and said plating yarn are fed from a preceding yarn feeding port and a following yarn feeding port respectively, following yarn feeding port is run at a position separated from said preceding yarn feeding port, with respect to said needle bed to which said knitting needle belongs, in a direction of leaving from the needle bed gap.
  • an operating member is provided in correspondence with each of knitting needle so as to be switchable on whether an operating part at the leading end is allowed or disallowed to move forward and backward with respect to the side of the local member including the sinker.
  • the operating member during mid-course of an ordinary plating in which knitting for plating stitch is performed with knitting yarns pulled into a hook of a knitting needle such that a main yarn is on a lower side and a plating yarn is on an upper side, is capable of moving the operating part forward to the side of the local member.
  • the moved operating part inverts vertical positions of the main yarn and the plating yarn to be pulled into the hook of the knitting needle, which makes it possible to switch to inverse plating in which the plating yarn is on the front surface side of the knitted fabric even during the ordinary plating, and only a single route for pull-in by the knitting needle is sufficient.
  • the main yarn fed to the lower side and the plating yarn fed to the upper side are placed on the operating part and are guided to an inverse wall formed by the local member in the vicinity of the knitting needle, and the operating part can invert vertical positions of the main yarn and the plating yarn to be pulled into the hook in cooperation with the wall.
  • the main yarn and the plating yarn are restricted in an aligned state within a region surrounded by the upper portions of the operating part and the hook as well as the inverse wall. Since the plating yarn is pulled from the region into the hook in such a manner as to come around the lower side of the main yarn, the main yarn and the plating yarn to be pulled into the hook can be inverted in vertical position from the state of yarn feeding.
  • the inverse wall has an upward inclination which is lower on the needle bed gap side and becomes higher on the side distant from the needle bed gap.
  • the main yarn precedes and becomes on the upper side and the plating yarn follows and becomes on the lower side.
  • the pulling of the knitting yarns into the hook is performed a state in which the main yarn guided by the inverse wall is on the upper side and the plating yarn guided by the inverse wall is on the lower side, and thus the main yarn and the plating yarn to be pulled into the hook can be inverted in vertical position from the state of yarn feeding.
  • the operating part of the operating member can press the plating yarn fed to the upper side into the lower side of the main yarn so that the main yarn and the plating yarn can be fed in the vertically inverted positions into the hook of the knitting needle.
  • the following yarn feeding port runs at a position separated from the preceding yarn feeding port in the direction of leaving from the needle bed gap. Since the front-back difference between the needle beds is added to the main yarn and the plating yarn, it is possible to stably invert the vertical position of the main yarn and the plating yarn by the operating part of the operating member, and it is also possible to stably cancel the inverse of the vertical position after the operating member stops operation.
  • Fig. 1 describes a basic concept of the present invention.
  • Figs. 2 to 5 describe an example 1 of the present invention.
  • Figs. 6 to 8 describe an example 2 of the present invention.
  • Figs. 9 and 10 describe an example 3 of the present invention.
  • some components not shown in a drawing being described will be mentioned with reference numerals shown in other drawings. Corresponding components will be given the same reference numerals and duplicated descriptions thereof may be omitted. Further, as for knitting stitches, old loops are omitted to be shown in the drawings.
  • Fig. 1 shows operations of knitting for plating stitch by a flatbed knitting machine in a simplified manner as a basic concept of the present invention.
  • Figs. 1(a) and 1(c) show operations of ordinary plating as a basic of knitting for plating stitch by a flatbed knitting machine.
  • a main yarn 11 and a plating yarn 12 are respectively fed from yarn feeding ports 1a, 2a of a preceding yarn feeder 1 and a following yarn feeder 2.
  • the main yarn 11 and the plating yarn 12 are discriminated according to the running order of the yarn feeding ports 1a, 2a.
  • the knitting yarns can be fed by using not only the two yarn feeders 1, 2 each having a single yarn feeding port but also one yarn feeder dedicated for knitting for plating stitch having a double yarn feeding port.
  • the main yarn 11 and the plating yarn 12 are fed to a same hook 3a of a knitting needle 3 while the vertical lower and upper positions are kept by a needle bed gap 4 as shown in Fig. 1(c) .
  • the knitting needle 3 returns backward to a needle bed while moving obliquely downward from a needle bed gap center 4a. After a fabric is knitted, the main yarn 11 pulled into the lower side than the plating yarn 12 by the hook 3a appears on the front surface and the plating yarn 12 is hidden on the back surface.
  • An operating member 5 as shown in Figs. 1(b) and 1(d) is prepared in correspondence with each of the knitting needles 3 to enable switching to the inverse plating according to the present invention.
  • the operating member 5 is made switchable on whether an operating part formed at the leading end is allowed or disallowed to move forward and backward with respect to the needle bed gap 4 as in the example 1, the example 2, and the example 3 of the present invention.
  • the operating member 5 can be operated on the main yarn 11 and the plating yarn 12 before being fed to the corresponding knitting needle 3.
  • the operation of the operating member 5 is to invert vertical positions of the main yarn 11 and the plating yarn 12 to be pulled in by the hook 3a of the knitting needle 3 such that the main yarn 11 is on the upper side and the plating yarn 12 is on the lower side.
  • the plating yarn 12 pulled by the hook 3a to the side below the main yarn 11 appears on the front surface and the main yarn 11 is hidden on the back surface.
  • cross-sections of the main yarn 11 and the plating yarn 12 might be shown in the drawing such as the parts being pulled in by the hook 3a, but the main yarn 11 and the plating yarn 12 are not actually sectioned but are continuous up to the front side of the plane of the drawing.
  • the main yarn 11 and the plating yarn 12 to be pulled in by the knitting needle 3 can be inverted in vertical positions before being fed to the hook 3a, thereby switching to the inverse plating such that the plating yarn 12 is on the front surface side of the knitted fabric.
  • the efficiency of knitting does not decrease even if the main yarn 11 and the plating yarn 12 are switched more frequently, so that it is possible to knit a fabric in a variety of patterns by the knitting for plating stitch.
  • the switching of the main yarn 11 and the plating yarn 12 does not require change of the running order of the two yarn feeding ports 1a, 2a and a single route for pull-in by the knitting needle 3 is sufficient.
  • Fig. 2 and Fig.3 show stepwise an operation of switching from the main yarn 11 to the plating yarn 12 as the knitting yarn to appear on the front surface of the knitted fabric in the inverse plating according to the example 1 of the present invention.
  • the feeding of the main yarn 11 and the plating yarn 12 by the yarn feeders 1, 2 and the forward and backward movement of the knitting needle 3 with respect to the needle bed gap 4 are carried out in the same manner as in the ordinary plating.
  • the switching operation is performed during mid-course of one knitting course, and the main yarn 11 and the plating yarn 12 are connected to a loop, which is held by the hook 3a of the knitting needle 3 after knitted completely.
  • the knitting needle 3 is housed in a needle groove of the needle bed 6, and at least one pair of needle beds 6 are provided so as to be opposed to each other and to interleave the needle bed gap 4, but the knitting needle on the opposed side is omitted to show in the drawings.
  • the knitting needles 3 are provided in parallel with a constant pitch in a direction perpendicular to the plane of the drawing such that the hooks 3a face the needle bed gaps 4.
  • a yarn guide 7 and a movable sinker 8 or the like are provided around each knitting needle 3.
  • a loop presser 15 corresponding to the operating member 5 is arranged above each knitting needle 3.
  • the loop presser 15 is housed in an auxiliary bed as disclosed in Japanese Patent No. 4102430 , for example.
  • the auxiliary bed is provided above a needle bed 6 opposed to a needle bed 6 in which the knitting needle 3 is housed, alternatively the auxiliary bed can be provided above the needle bed 6 in which the knitting needle 3 is housed, as disclosed in Japanese Patent No. 3044373 , for example.
  • the knitting needle 3, the movable sinker 8, and the loop presser 15 operate by receiving actions of a drive control unit mounted on a carriage running along the needle bed in a direction perpendicular to the plane of the drawing.
  • the loop presser 15 is provided with an operating part 15a on the upper side near the leading end so that the loop presser 15 has not only the original function is to press the loop but also has a function of the operating member 5.
  • a dedicated member to operate as the operating member 5 may be provided.
  • a fixed sinker may be used.
  • knitting operation proceeds along a direction from the front side to back side of the drawings.
  • the yarn guide 7 and the movable sinker 8 are arranged adjacent to the knitting needle 3 on the needle bed 6.
  • the operating part 15a of the loop pressor 15 can move forward and backward from the opposed needle bed side between the yarn guide 7 and the knitting needle 3. Therefore, toward the knitting direction, the knitting needle 3, the operating member 5 such as the loop presser 15, the yarn guide 7, the movable sinker 8, and the next knitting needle 3 are arranged in this order.
  • the hook 3a is raised up to a clear position and then is lowered to a position where to wait for yarn feeding. By raising the hook 3a to the clear position, an old loop formed in the hook 3a moves to a needle shank of the kitting needle 3.
  • the operating part 15a of the loop presser 15 moves forward to below the main yarn 11 and the plating yarn 12 as shown at positions 15A, 15B, and 15C.
  • the operating part 15a having moved forward to the position 15C operates the main yarn 11 and the plating yarn 12 from below.
  • the main yarn 11 comes into a state to be aligned at a position nearer the yarn guide 7 than the plating yarn 12, on the operating part 15a.
  • the operating part 15a when the pull-in by the hook 3a is continued, the operating part 15a having moved forward to the position 15D guides the main yarn 11 and the plating yarn 12 placed thereon to a side of the front edge 7a of the yarn guide 7.
  • the front edge 7a constitutes an inverse wall which stops the movement of the main yarn 11 and the plating yarn 12 in the direction toward the needle bed 6 and inverts the vertical positions of the main yarn 11 and the plating yarn 12 as described later
  • the operating part 15a constitutes a downward wall
  • the upper part of the hook 3a constitutes an upward wall.
  • the front edge 7a as a wall to stop movement, by setting an angle with respect to the direction of the forward and backward movement of the knitting needle 3 with in a range close to the vertical angle shown in the drawing or the like, may constitute a part of a wall of a region, which surrounds the main yarn 11 and the plating yarn 12, and stops the movement from within toward the needle bed 6.
  • the main yarn 11 is retained at the front edge 7a, and the plating yarn 12 aligns with the main yarn 11 on the needle bed gap 4 side.
  • the operating part 15a in this region would be too high, it might become hard to feed the yarn to the hook 3a, and the vertical drop from the upper edge of the operating part 15a to the inside of the hook 3a might become large, thereby to increase a load on the knitting yarns.
  • the operating part 15a would be too low, the yarn feeding might be possible but the knitting yarns might likely be caught in the hook 3a such that the main yarn 11 might be on the lower side and the plating yarn 12 might be on the upper side as in the case of the ordinary plating.
  • the height of the operating part 15a is decided to avoid these problems.
  • the upper part of the hook 3a is restricted such that the plating yarn 12 does not run on the main yarn 11 retained at the front edge 7a.
  • the operating part 15a moves forward to the position 15E and crosses the front edge 7a such that the operating part 15a is used as a lower wall.
  • the front edge 7a constitutes the inverse wall when the vertical positions of the main yarn 11 and the plating yarn 12 is inverted by retaining the main yarn 11.
  • the inverse of the main yarn 11 and the plating yarn 12 is established by being caught on the outer edge of the movable sinker 8. Until the establishment, the loop presser 15 needs to be kept in the moved state at least as the lower wall.
  • the loop presser 15 needs to be moved backward to a position such as the position 15F, in a range not interfering with the old loop, which is knocked-over.
  • the pull-in is continued until a needle loop by the hook 3a and a sinker loop by the movable sinker 8 are formed, thereby completing the determination of the stitch size.
  • the series of actions of moving forward and backward the loop presser 15 may be not only the linear movement as in the present example 1 but also the vertical movement by swinging as in the present example 3.
  • Fig. 4 shows a knitting operation near the needle bed gap 4 including a switching operation illustrated in Figs. 2 and 3 .
  • the drive control unit which is mounted on the carriage running in a direction from the lower side to the upper side of the drawing, drives the knitting needle 3 and the loop presser 15.
  • the knitting needle 3, which is selected for knitting is driven such that the leading end of the hook 3a draws a trajectory 3t.
  • the loop presser 15 is driven such that the leading end draws a trajectory 15t. If the loop presser 15 would not be caused to operate, the loop presser 15 would wait at a position similar to the flat portion of the trajectory 15t, whereby the ordinary plating is performed such that the main yarn 11 appears on the front surface.
  • the switching by operation or non-operation of the operating member 5 such as the loop presser 15 is always possible in the sections of the plurality of continuous knitting needles.
  • course knitting can be terminated by switching from the section of the ordinary plating to the section of the inverse plating, or after the switching to the inverse plating further switching can be made to the section of the ordinary plating.
  • Fig. 4 shows positions 3A, 3B, 3C, 3D, 3E, 3F ; 15A, 15B, 15D, 15E, and 15F corresponding to the operations of the knitting needle 3 and the loop presser 15 shown in Fig. 2 and Fig.3 .
  • the loop presser 15 in the present example 1 inverts the vertical position of the main yarn 11 and the plating yarn 12 by cooperation with the front edge 7a of the yarn guide 7. When the main yarn 11 and the plating yarn 12, those vertical position are inverted, are fed to the hook 3a of the knitting needle 3, the loop presser 15 moves backward from the needle bed gap 4 to the positions 15E and 15F as shown in Fig. 3(c) and Fig. 3(d) .
  • the front edge 7a of the yarn guide 7 is used as a part of the wall of the region which cooperates with the loop presser 15 to retain the main yarn 11 and restricts the main yarn 11 and the plating yarn 12.
  • the inverse wall formed with the front edge 7a of the yarn guide 7 might be substituted for another member such as the movable sinker 8, a fixed sinker, or a dedicated member. It may be preferable that the member constitutes the inverse wall is arranged in proximity to the knitting needle 3 in the proceeding direction of knitting, and that the operating part 15a of the loop presser 15 arranged between the knitting needle 3 and the inverse wall so as to move forward and backward.
  • the arrangement order of the knitting needle 3, the loop presser 15, the yarn guide 7, the movable sinker 8, and the next knitting needle 3 shown in Fig. 4 enables stable switching in the knitting for plating stitch in case of knitting proceeds leftward.
  • the inverse wall and the loop presser 15 are arranged in this order toward the proceeding direction of knitting with respect to the knitting needle 3. In this arrangement, there no longer exists the downward wall between the inverse wall and the knitting needle 3, and the operation to invert the vertical positions of the main yarn 11 and the plating yarn 12 may lack of stability.
  • the position of the loop presser 15 with respect to the knitting needle 3 is shifted by racking such that the loop presser 15 is arranged between the knitting needle 3 and the movable sinker 8 adjacent to the knitting needle 3 toward the proceeding direction of knitting.
  • the knitting needle 3, the loop presser 15, the movable sinker 8, the yarn guide 7, and the next knitting needle 3 are arranged in this order.
  • the knitting needle 3 and the operating member 5 such as the loop presser 15 are shifted in position by racking such that the three members, that is, the knitting needle 3, the operating member 5, and the inverse wall formed by the yarn guide 7 or the movable sinker 8 are equally arranged.
  • the loop presser 15 can be provided not only on the needle bed side opposed to the needle bed 6 but also on the needle bed 6 itself side.
  • the loop pressers 15 are used for different purposes such that the loop presser 15 on the opposed needle bed side is used for the leftward knitting, and the loop presser 15 on the needle bed 6 itself side is used for the rightward knitting, thereby eliminating the need for racking to equalize the arrangement.
  • Fig. 5 and Fig.6 show stepwise a switching operation of a main yarn 11 and a plating yarn 12 according to an example 2 of the present invention.
  • a loop presser 25 corresponding to the operating member 5 is provided with an operating part 25a at an upper portion near a leading end.
  • the loop presser 25 is provided with a loop pressing part 25b similar to the loop pressing part 15b of the loop presser 15 shown in Fig. 2 and Fig. 3 .
  • the yarn guide 7, the movable sinker 8, and the loop presser 25 are arranged adjacent to each other in this order toward the proceeding direction of knitting with respect to the knitting needle 3.
  • the operating part 25a of the loop presser 25 moves forward and backward in the proceeding direction of knitting with respect to the yarn guide 7.
  • the arrangement is not limited to this but the loop presser 25 and the yarn guide 7 may be arranged in this order in the proceeding direction of knitting with respect to the knitting needle 3 and the operating part 25a may move forward and backward between the knitting needle 3 and the yarn guide 7.
  • an inclination part 7b formed in the yarn guide 7 to be continuous from the upper end of the front edge 7a is used as a inverse wall.
  • the inclination part 7b has an upward inclination such that the needle bed gap 4 side, which is the right side in the drawing, is lower and the side distant from the needle bed gap 4, which is the left side in the drawing, is higher.
  • the upward inclination of the inclination part 7b guides the knitting yarns to move such that the main yarn 11 is on the upper side and the plating yarn 12 is on the lower side.
  • the upper portion of the operating part 25a preferably has an upward inclination similar to that of the inclination part 7b such that the main yarn 11 and the plating yarn 12 can smoothly move.
  • the operating part 25a may be flat but needs to be shaped to cross at least the inclination part 7b at an obtuse angle in such a manner as not to hinder the movement of the main yarn 11 and the plating yarn 12.
  • the knitting needle 3 is raised to a clear position before the formation of a loop and then is lowered to a position 3A where to wait for yarn feeding.
  • the loop presser 25 is placed in standby at a position 25A.
  • the operating part 25a of the loop presser 25 is moved forward to the lower side of the main yarn 11 and the plating yarn 12 as shown at a position 25B.
  • Fig. 6(c) shows a state in which the pull-in by the hook 3a is continued so that the knitting needle 3 is lowered to a position 3C just before to catch the main yarn 11 and the plating yarn 12.
  • the main yarn 11 and the plating yarn 12 are being lowered with an inclination from the yarn feeding ports 1a, 2a toward the hook 3a of the preceding knitting needle 3 where the main yarn 11 and the plating yarn 12 have been caught, on the front side of the drawing where the knitting is already done.
  • a position 25C of the loop presser 25 is the same as the position 25B, the positions of the main yarn 11 and the plating yarn 12 are lowered relative to the operating part 25a.
  • the operating part 25a operates from the lower side of the main yarn 11 and the plating yarn 12, and aligns the main yarn 11 and the plating yarn 12 thereon such that the main yarn 11 precedes the plating yarn 12 to the inclination part 7b side.
  • Fig. 7 shows a knitting operation near the needle bed gap 4 including the switching operation shown in Fig. 5 and Fig. 6 as like as Fig. 4 .
  • the loop presser 25 is driven such that the leading end draws a trajectory 25t.
  • the positions 3A, 3B, 3C, 3D, 25A, 25B, 25C, and 25D correspond to the operations of the knitting needle 3 and the loop presser 25 shown in Fig. 5 and Fig. 6 .
  • the inclination part 7b of the yarn guide 7 near the knitting needle 3 can be used as an inverse wall that cooperates with the operating part 25a of the loop presser 25 to catch the main yarn 11 and the plating yarn 12 on the hook 3a in such a manner as to be vertically inverted.
  • the front edge 7a continued from the inclination part 7b of the yarn guide 7 is used as a wall that guides the knitting yarns downward to the needle bed gap 4.
  • another member such as the movable sinker 8, a fixed sinker, or a dedicated member may be used.
  • Fig. 8 shows stepwise a switching operation of a main yarn 11 and a plating yarn 12 according to an example 3 of the present invention.
  • a loop presser 35 corresponding to the operating member 5 is provided with an operating part 35a at a lower portion near a leading end.
  • the operating part 35a has an inclination rising toward the leading end side.
  • the loop presser 35 is provided with a loop pressing part 35b similar to the loop pressing parts 15b, 25b of the loop pressers 15, 25 according to the other examples.
  • a yarn guide 7 and a movable sinker 8 are arranged adjacent to each other, toward the proceeding direction of knitting with respect to the knitting needle 3, and the operating part 35a of the loop presser 35 moves forward and backward on the adjacent sides from the movable sinker 8 in the proceeding direction of knitting.
  • the arrangement is not limited to this but the loop presser 35, the yarn guide 7, and the movable sinker 8 may be arranged adjacent to each other in this order toward the proceeding direction of knitting with respect to the knitting needle 3.
  • Fig. 8(a) shows a state in which the vertical positions of the main yarn 11 and the plating yarn 12 are inverted by the operating part 35a of the loop presser 35 when these yarns get caught on the hook 3a.
  • the hook 3a Before the formation of a loop by the hook 3a of the knitting needle 3, the hook 3a is raised to the clear position and then lowered to the position where to wait for yarn feeding.
  • the operating part 35a of the loop presser 35 is moved forward to the upper side of the main yarn 11 and the plating yarn 12 as shown at 35A, 35B, and 35C.
  • the operating part 35a operates to press the main yarn 11 and the plating yarn 12 from above in such a manner that the operating part 35a operates earlier at least on the plating yarn 12 fed to the upper side and presses the plating yarn 12 into the lower side of the main yarn 11 so as to invert vertical positions.
  • the plating yarn 12 pressed into the lower side by the operating part 35a having moved forward to a position 35D is placed also on the inclination part 7b of the yarn guide 7 and pressed into the lower side of the main yarn 11.
  • the plating yarn 12 becomes caught under the main yarn 11 in the hook 3a of the knitting needle 3 having descended to a position 3D, and the vertical positions of the main yarn 11 and the plating yarn 12 are inverted.
  • the main yarn 11 and the plating yarn 12 may not be placed on the inclination part 7b of the yarn guide 7 as far as the main yarn 11 and the plating yarn 12 are caught in the hook 3a in the state where they are pressed by the operating part 35a and inverted in vertical positions.
  • Fig. 9 shows a knitting operation near the needle bed gap 4 including the switching operation shown in Fig. 8 as like as Fig.4 and Fig. 7 .
  • the loop pressor 35 is driven such that the leading end draws a trajectory 35t.
  • the positions 3C, 3D, 35A, 35B, 35C, and 35D indicate the positions corresponding to the operations of the knitting needle 3 and the loop presser 35 shown in Fig. 8 .
  • the loop presser 35 is retained at the position 35A similar to the flat portion on the upper side of the trajectory 35t, thereby performing the ordinary plating in which the main yarn 11 appears on the front surface.
  • Fig. 10 shows a comparison between the case (a), (b) where the yarn feeding port 2a of the plating yarn 12 and the yarn feeding port 1a of the main yarn 11 are run at positions where the distance to the needle bed gap 4 with respect to the needle bed 6 to which the knitting needle 3 belongs are almost the same, and the case (c), (d) where the yarn feeding port 2a of the plating yarn 12 is run at a separated position closer to the opposed needle bed side with the needle bed gap 4 therebetween.
  • the yarn feeding ports 1a, 2a are generally set to be capable of feeding the yarns at near the needle bed gap center 4a to knitting needles 3 equally from the needle beds on the both sides.
  • a plurality of running routes are provided above the needle bed gap 4, and the yarn feeders 1, 2 running in the different running routes are inclined such that the yarn feeding ports 1a, 2a are near the needle bed gap center 4a.
  • the following yarn feeding port 2a is preferably run at a position separated from the preceding yarn feeding port 1a to the opposed needle bed side by a front-back difference ⁇ D of the needle bed gap 4 with respect to the needle bed 6 to which the knitting needle 3 belongs to be fed with the yarn.
  • the front-back difference ⁇ D constitutes the spacing between the needle bed gap center 4a and a center 4b of the yarn feeding port 2a of the plating yarn 12.
  • the inverse plating causes the operating part 35a to operate in the state in which the main yarn 11 and the plating yarn 12 are separated by the front-back difference ⁇ D.
  • the plating yarn 12 becomes easy to press earlier and can be stably caught when the vertical positions are inverted in the hook 3a.
  • the front-back difference ⁇ D also makes it possible to stably return to the ordinary plating by causing the loop presser 35 to stop operation.
  • the front-back difference ⁇ D may be provided such that the preceding yarn feeding port 1a is made closer to the needle bed 6 side than the needle bed gap center 4a. That is, the front-back difference ⁇ D may be provided in the direction of spacing of the needle bed gaps 4.
  • Such front-back difference ⁇ D is preferably provided in both the example 1 and the example 2.
  • the main yarn 11 and the plating yarn 12 placed on the operating part 15a, 25a of the loop presser 15, 25 are easy to stably align in order without exchange.
  • the loop pressor 15, 25, 35 as the operating member 5 when the loop pressor 15, 25, 35 as the operating member 5 is caused to operate as the original yarn guide loop pressor, the loop pressor 15, 25, 35 needs to be driven to draw a trajectory different from the trajectories 15t, 25t, 35t shown in Fig. 4 , Fig. 8 and Fig. 10 .
  • the yarn guidance loop presser to press the loop can also serve as the operating member.
  • the operating member 5 can serve as any knitting member different from the loop presser 15, 25, 35 or can be a dedicated member.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)

Claims (6)

  1. Verfahren zum Stricken einer Plattiermasche in einer Flachstrickmaschine, das zwischen einem gewöhnlichen Plattieren und einem inversen Plattieren für das Stricken einer Plattiermasche geschaltet werden kann, wobei unter Verwendung einer Flachstrickmaschine, die mit lokalen Gliedern (7, 8), die Platinen (8) umfassen und entlang der Nadelbettspalt (4)-Seite des Nadelbetts (6) aufgereiht sind, ausgestattet ist, das gewöhnliche Plattieren derart durchgeführt wird, dass ein Hauptfaden (11) und ein Plattierfaden (12) zu der gleichen Stricknadel (3) zugeführt werden, während sie an vertikal unteren und oberen Positionen gehalten werden, sodass sich der Hauptfaden (11) an einer vorderen Seite befindet, und das inverse Plattieren derart durchgeführt wird, dass vertikale Positionen des Hauptfadens (11) und des Plattierfadens (12), die zu der Stricknadel (3) zuzuführen sind, invertiert sind und sich der Plattierfaden (12) auf der vorderen Seite befindet,
    dadurch gekennzeichnet, dass:
    für jede Stricknadel (3) ein Betätigungsglied (5; 15, 25, 35) vorgesehen ist, das einen Betätigungsteil (15a, 25a, 35a) an einem vorderen Ende für eine inverse Betätigung aufweist, wobei geschaltet werden kann, ob der Betätigungsteil (15a, 25a, 35a) sich nach vorne und nach hinten in Bezug auf den Nadelbettspalt (4) und in Nachbarschaft zu der Stricknadel (3) in der Strickrichtung bewegen darf oder nicht, und
    für das inverse Plattieren der Betätigungsteil (15a, 25a, 35a) des Betätigungsglieds (15, 25, 35) nach vorne zu dem Nadelbettspalt (4) bewegt wird und veranlasst wird, dass eine derartige Betätigung an dem Hauptfaden (11) und dem Plattierfaden (12), die zu der Stricknadel (3) zuzuführen sind, so vorgenommen wird, dass die vertikalen Positionen des Hauptfadens (11) und des Plattierfadens (12), die in einen Haken (3a) der Stricknadel (3) zu ziehen sind, invertiert werden und ein Gestrick derart gestrickt wird, dass sich der Plattierfaden (12) auf der vorderen Seite befindet.
  2. Verfahren zum Stricken einer Plattiermasche in einer Flachstrickmaschine nach Anspruch 1, wobei für das inverse Plattierstricken:
    das an dem Nadelbett (6) in Nachbarschaft zu der Stricknadel (3) in der Strickrichtung angeordnete lokale Glied (7) als eine inverse Wand (7a, 7b) verwendet wird, um die vertikalen Positionen in Zusammenwirkung mit dem Betätigungsglied (5; 15, 25, 35) zu invertieren, und
    veranlasst wird, dass der Betätigungsteil (15a, 25a) des Betätigungsglieds (15, 25), der an einem oberen Teil des Betätigungsglieds (15, 25) vorgesehen ist, an dem Hauptfaden (11) und dem Plattierfaden (12) von unten betätigt wird, um den Hauptfaden (11) und den daran platzierten Plattierfaden (12) zu der inversen Wand (7a, 7b) zu führen, um in Zusammenwirkung mit der inversen Wand (7a, 7b) zu veranlassen, dass die Fäden derart in den Haken (3a) gezogen werden, dass sich der Plattierfaden (12) an der unteren Seite befindet und sich der Hauptfaden (11) auf der oberen Seite befindet, und um die vertikalen Positionen des Hauptfadens (11) und des Plattierfadens (12) zu invertieren.
  3. Verfahren zum Stricken einer Plattiermasche in einer Flachstrickmaschine nach Anspruch 2, wobei die Stricknadel (3), das Betätigungsglied (15) und dann das lokale Glied (7) in dieser Reihenfolge in der Strickrichtung angeordnet sind, und
    wobei für das inverse Plattieren:
    veranlasst wird, dass der Betätigungsteil (15a) den Hauptfaden (11) zu der inversen Wand (7a) führt, um ihn mit dem Plattierfaden (12) an einer Position auszurichten, wo der Hauptfaden (11) näher an der inversen Wand (7) ist als der Plattierfaden (12), um ihn dort zu halten, um eine nach unten gerichtete Wand gegen den Hauptfaden (11) und den Plattierfaden (12) zu bilden und um einen Bereich, der den Hauptfaden (11) und den Plattierfaden (12) umgibt und beschränkt, zusammen mit einem oberen Teil des Hakens (3a) als eine nach oben gerichtete Wand zu bilden, und
    Invertieren der Positionen des Hauptfadens (11) und des Plattierfadens (12) derart, dass der Plattierfaden (12) um eine untere Seite des Hauptfadens (11) herumkommt, indem diese aus einem Zustand, in dem die Fäden durch den Bereich umgeben sind und miteinander ausgerichtet sind, in den Haken (3a) gezogen werden.
  4. Verfahren zum Stricken einer Plattiermasche in einer Flachstrickmaschine nach Anspruch 2, wobei:
    die inverse Wand (7b) eine nach oben gerichtete Neigung aufweist, die auf der Nadelbettspalt (4)-Seite niedriger und auf einer sich von dem Nadelbettspalt (4) weg erstreckenden Seite höher ist, und
    für das Stricken der inversen Plattierung, während die Fäden von dem Betätigungsteil (25a) zu der Seite der inversen Wand (7b) geführt werden, sodass der Haupfaden (11) mit dem Plattierfaden (12) ausgerichtet wird und näher als der Plattierfaden an der inversen Wand (7b) liegt:
    die Fäden derart in den Haken (3a) gezogen werden, dass sich der Hauptfaden (11) auf der oberen Seite befindet und der Plattierfaden (12) auf der unteren Seite befindet, sodass die vertikalen Positionen invertiert sind.
  5. Verfahren zum Stricken einer Plattiermasche in einer Flachbett-Strickmaschine nach Anspruch 1, wobei der Betätigungsteil (35a) des Betätigungsglieds (35) an dem unteren Teil des Betätigungsglieds (35) vorgesehen ist und das Verfahren weiterhin umfasst:
    Vornehmen einer Betätigung an dem Hauptfaden (11) und dem Plattierfaden (12) von oben in dem inversen Plattieren, um den Plattierfaden (12) zu einer unteren Seite des Hauptfadens (11) zu drücken, sodass die vertikalen Positionen invertiert sind.
  6. Verfahren zum Stricken einer Plattiermasche in einer Flachbett-Strickmaschine nach einem der Ansprüche 1 bis 5, wobei:
    der Hauptfaden (11) und der Plattierfaden (12) jeweils von einer vorausgehenden Fadenzuführöffnung (1a) und einer folgenden Fadenzuführöffnung (2a) zugeführt werden, und
    die folgende Fadenzuführöffnung (2a) an einer Position betrieben wird, die von der vorausgehenden Fadenzuführöffnung (1a) in Bezug auf das Nadelbett (6), zu dem die Stricknadel (3) gehört, in einer sich von dem Nadelbettspalt (4) weg erstreckenden Richtung beabstandet ist.
EP18781123.7A 2017-04-07 2018-04-06 Plattierstrickverfahren für flachstrickmaschine Active EP3608461B1 (de)

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JP2017077016 2017-04-07
PCT/JP2018/014814 WO2018186499A1 (ja) 2017-04-07 2018-04-06 横編機でのプレーティング編成方法

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US11136698B2 (en) * 2019-07-19 2021-10-05 Pai Lung Machinery Mill Co., Ltd. Weft knitting machine knitting structure with changeable yarn positions
JP7425006B2 (ja) * 2020-02-17 2024-01-30 株式会社島精機製作所 編地の編成方法
CN114318647B (zh) * 2021-02-23 2023-06-09 连云港杜钟新奥神氨纶有限公司 交换添纱喂纱装置和防脱散纬编交换添纱提花面料的制法

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GB307885A (en) * 1928-03-15 1929-12-19 Standard Trump Bros Machine Co Improvements in or relating to plated knitted fabric and to processes for making thesame
JPS5954590U (ja) * 1982-10-02 1984-04-10 大東製機株式会社 丸編機における添糸給糸装置
JP3044373B2 (ja) 1997-09-12 2000-05-22 株式会社島精機製作所 ループプレッサーを備えた横編機およびループプレッサーを用いた編地編成方法
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JP4977383B2 (ja) * 2006-02-28 2012-07-18 株式会社島精機製作所 横編機の編成用カム装置
JP5010588B2 (ja) * 2006-05-17 2012-08-29 株式会社島精機製作所 インターシャ柄編地の編成方法および横編機
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EP3608461A1 (de) 2020-02-12
CN110678593B (zh) 2021-04-27
KR20190130656A (ko) 2019-11-22
WO2018186499A1 (ja) 2018-10-11
JP6807451B2 (ja) 2021-01-06
KR102291231B1 (ko) 2021-08-18
JPWO2018186499A1 (ja) 2020-02-27
EP3608461A4 (de) 2021-01-13
CN110678593A (zh) 2020-01-10

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