Yarn feeder and method for producing double-sided knitted fabric

Abstract

The yarn feeder is provided with a one-side yarn feeding port which is opened on the surface of the radial inner side of the dial in the main body. The one-side yarn supply port guides a knitting yarn knitted as a one-side bottom knitting structure toward a knitting region of a needle cylinder needle provided on a needle bed of a needle cylinder. The yarn feeder has a guide groove that guides the knitting yarn knitted as the other-side plaiting structure or one-side plaiting structure toward the knitting region of the dial needle or the knitting region of the needle cylinder needle. The yarn feeder is provided with a protruding piece protruding from the main body to the radial outer side. The yarn feeder is provided with an other-side yarn feeding port which is arranged on the protruding piece and guides a knitting yarn to the knitting area of the dial needle when the knitting yarn knitted as the other-side bottom knitting structure passes through the other-side yarn feeding port.

Description

Technical Field

[0001] The present disclosure relates to a yarn feeder applicable to a dial-cylinder type circular loom, which is an apparatus for producing double-knitted fabrics, and a method for producing double-knitted fabrics by using the circular loom. Background Art

[0002] In the present disclosure, "double-sided knitted fabric" refers to a knitted fabric formed by connecting a knitted fabric on one side constituting a surface of one side and a knitted fabric on the other side constituting a surface of the other side by connecting yarns. In the double-sided knitted fabric, there is a structure in which the knitted fabric on one side and the knitted fabric on the other side are knitted fabrics in which a plating structure consisting of elastic yarn of polyester fiber is combined with a base knitting structure consisting of textile yarn spun from short fibers, i.e., cotton, so that the structure as a whole becomes a five-layer structure (for example, refer to Japanese Patent Publication No. 2022-023308 described below). Here, the double-sided knitted fabric with a five-layer structure described in Japanese Patent Publication No. 2022-023308 is produced by using a dial-cylinder circular loom and knitting the knitted fabric on one side and the knitted fabric on the other side respectively by using its dial needles and cylinder needles.

[0003] However, when knitting a knitted fabric having a structure in which a plating structure is combined with a base knitting structure using a circular loom, it is necessary to supply the knitting yarn knitted as the base knitting structure and the knitting yarn knitted as the plating structure to one knitting area from different yarn supply paths. At this time, if the direction of the yarn path extension of the knitting yarn is changed due to entanglement of so-called "cotton dust" (a collection of fibers falling off the textile yarn) or the like, a defective knitted fabric will be woven in which the plating structure appears where the base knitting structure should appear and the base knitting structure appears where the plating structure should appear.

[0004] As a technology capable of reducing the possibility of knitting defective knitted fabrics as described above, there is known a technology of a yarn supply guide (generally also referred to as a "yarn supply") described in Japanese Patent Application Laid-Open No. 11-269744. In this technology, a yarn supply port for inserting cotton yarn and an arc-shaped cutout portion are provided at the lower part of the yarn supply guide of a circular loom, and a concave guide piece for guiding the yarn of the elastic fiber is provided near the cutout portion.

[0005] The yarn feed guide described in Japanese Patent Application Laid-Open No. 11-269744 can only guide the knitting yarn fed to the cylinder needles when it is applied to a dial-needle cylinder circular knitting machine. Therefore, when producing the double-knitted fabric with a five-layer structure described in Patent Document 1, defective products may still be knitted in which a plating structure appears where a base knitting structure should appear, or a base knitting structure appears where a plating structure should appear.

[0006] The present disclosure can reduce the possibility of knitting defective products when producing a double-sided knitted fabric in which one side knitted fabric and the other side knitted fabric are respectively made into a structure in which a plating yarn structure is combined with a base knitted structure. Summary of the invention

[0007] According to a feature of the present disclosure, a yarn feeder for a needle-disc-cylinder circular loom is provided as a device for producing a double-sided knitted fabric. Here, the double-sided knitted fabric has a structure in which a knitted fabric on one side constituting a surface of one side and a knitted fabric on the other side constituting a surface of the other side are connected to form a knitted fabric by connecting yarns. In addition, the knitted fabric on one side has a bottom knitting structure on one side exposed on one side and a plating structure on one side which is paralleled along the surface of the other side of the bottom knitting structure on the one side. In addition, the knitted fabric on the other side has a bottom knitting structure on the other side exposed on the other side and a plating structure on the other side which is paralleled along the surface of the one side of the bottom knitting structure on the other side. In addition, the yarn feeder has a main body arranged at a position radially outside the needle disk than the needle bed of the needle cylinder in the circular loom. In addition, the yarn feeder has a yarn supply port on one side which opens on the surface radially inside the needle disk in the main body. When the knitting yarn knitted as the bottom knitting structure on one side passes from the radial outside, the yarn supply port on one side guides the knitting yarn toward the knitting area of ​​the cylinder needle arranged on the needle bed of the needle cylinder. In addition, the yarn feeder has a guide groove that guides the knitting yarn knitted as the other side plating structure or the one side plating structure toward the knitting area of ​​the dial needle or the knitting area of ​​the cylinder needle arranged on the needle bed of the needle dial. In addition, the yarn feeder has a protruding piece that protrudes radially outward from the main body and constitutes at least a part of the wall of the guide groove. In addition, the yarn feeder has an other side yarn supply port, which is arranged on the protruding piece, and when the knitting yarn knitted as the other side bottom knitting structure passes, the knitting yarn is guided toward the knitting area of ​​the dial needle.

[0008] The yarn feeder described above can be used as a component for feeding the knitting yarn for knitting a fabric on one side or the knitting yarn for knitting a fabric on the other side in a needle-dial cylinder type circular loom. In the case where the yarn feeder feeds the knitting yarn for knitting a fabric on the other side, the yarn feeder guides the knitting yarn for knitting a bottom knitting structure on the other side toward the knitting area of ​​the needle-dial needle through the yarn feed port on the other side, and guides the knitting yarn for knitting a plating structure on the other side toward the knitting area of ​​the needle-dial needle through the guide groove. Thus, the yarn feeder reduces the possibility of knitting a defective product in which the plating structure on the other side appears where the bottom knitting structure on the other side should appear, and the bottom knitting structure on the other side appears where the plating structure on the other side should appear. In addition, in the case where the yarn feeder feeds the knitting yarn for knitting a fabric on one side, the yarn feeder guides the knitting yarn for knitting a bottom knitting structure on one side toward the knitting area of ​​the cylinder needle through the yarn feed port on the one side, and guides the knitting yarn for knitting a plating structure on one side toward the knitting area of ​​the cylinder needle through the guide groove. Thus, the yarn feeder can reduce the possibility of knitting defective products in which one side plating structure appears where one side base knitting structure should appear, and one side base knitting structure appears where one side plating structure should appear. According to these functions, the yarn feeder can reduce the possibility of knitting defective products when producing a double-sided knitted fabric in which one side knitted fabric and the other side knitted fabric are respectively made into a structure in which a plating structure is combined with a base knitting structure.

[0009] According to another aspect, a method for producing the double-sided knitted fabric described later by a needle-dial-cylinder circular loom is provided. Here, the double-sided knitted fabric has a structure in which a one-side knitted fabric constituting a surface on one side and a another-side knitted fabric constituting a surface on the other side are connected into a knitted fabric by connecting yarns. In addition, the one-side knitted fabric has a one-side bottom knitting tissue exposed on one side and a one-side plating tissue that is paralleled along the other-side surface of the one-side bottom knitting tissue. In addition, the other-side knitted fabric has the other-side bottom knitting tissue exposed on the other side and the other-side plating tissue that is paralleled along the one-side surface of the other-side bottom knitting tissue. In addition, in the method for producing the double-sided knitted fabric, the above-mentioned yarn feeders, i.e., the first yarn feeder and the second yarn feeder, are respectively applied to the circular loom. In addition, in a method for producing a double-sided knitted fabric, the double-sided knitted fabric is produced by a weaving process in which a circular loom weaves these knitting yarns in a state in which the knitting yarn woven as the bottom knitting structure on one side passes through a yarn supply port on one side in a first yarn feeder from the radially outer side, the knitting yarn woven as the added yarn structure on one side is hung on a guide groove in the first yarn feeder, the knitting yarn woven as the added yarn structure on the other side is hung on a guide groove in a second yarn feeder, and the knitting yarn woven as the bottom knitting structure on the other side passes through a yarn supply port on the other side in a second yarn feeder.

[0010] According to the above method, the second yarn feeder guides the knitting yarn knitted as the other side bottom knitting tissue toward the knitting area of ​​the dial needle through the other side yarn feed port, and guides the knitting yarn knitted as the other side plating tissue toward the knitting area of ​​the dial needle through the guide groove. Thus, the second yarn feeder reduces the possibility of knitting out defective products in which the other side plating tissue appears where the other side bottom knitting tissue should appear, and the other side bottom knitting tissue appears where the other side plating tissue should appear. In addition, the first yarn feeder guides the knitting yarn knitted as the one side bottom knitting tissue toward the knitting area of ​​the cylinder needle through the one side yarn feed port, and guides the knitting yarn knitted as the one side plating tissue toward the knitting area of ​​the cylinder needle through the guide groove. Thus, the first yarn feeder reduces the possibility of knitting out defective products in which the one side plating tissue appears where the one side bottom knitting tissue should appear, and the other side bottom knitting tissue appears where the one side plating tissue should appear. According to these effects, the above method for producing double-sided knitted fabrics can reduce the possibility of knitting out defective double-sided knitted fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an enlarged cross-sectional view of a main part showing a schematic structure of a double knit fabric 10 produced by the method for producing a double knit fabric according to the first embodiment.

[0012] Figure 2 It is a filming production Figure 1 The photograph is obtained by showing the main part of the device for making the double-knitted fabric 10, namely, the circular loom 40.

[0013] Figure 3 Is a separate expression Figure 2 A front view of the second yarn supply 30 is shown.

[0014] Figure 4 Is a separate expression Figure 2 A rear view of the second yarn supply 30 is shown.

[0015] Figure 5 Is a separate expression Figure 2 A left side view of the second yarn supply 30 is shown.

[0016] Figure 6 Is a separate expression Figure 2 A right side view of the second yarn supply 30 is shown.

[0017] Figure 7 Is a separate expression Figure 2 A top view of the second yarn supply 30 is shown.

[0018] Figure 8 Is a separate expression Figure 2 A bottom view of the second yarn supply 30 is shown.

[0019] Fig. 9 This is a knitting diagram for explaining the method for producing a double knitted fabric according to the first embodiment.

[0020] Fig.10 This is a knitting diagram for explaining the method of producing a double knitted fabric according to the second embodiment. DETAILED DESCRIPTION

[0021] Hereinafter, specific embodiments of the present disclosure will be described using the drawings.

[0022] <First Embodiment>

[0023] First, use Figure 1 The structure of the double-sided knitted fabric 10 produced by the method for producing a double-sided knitted fabric of the first embodiment is described. The double-sided knitted fabric 10 has a structure in which a one-side knitted fabric 11 constituting a surface of one side and a second-side knitted fabric 12 constituting a surface of the other side are connected to form a five-layer structure of a knitted fabric by a connecting yarn 10A.

[0024] The one-side knitted fabric 11 has a one-side bottom knitted structure 11A constituting a weft knitted structure, and the one-side bottom knitted structure 11A is in a state of being exposed on one side. In the present embodiment, the one-side bottom knitted structure 11A is a circular knitted plain stitch structure with the surface 11B facing one side and the back surface 11C facing the other side. The plain stitch structure is composed of a textile yarn 10C.

[0025] The textile yarn 10C has the property of being a fancy yarn having a thick part and a thin part locally. Therefore, the size of the holes in the loop portion 11D in the plain stitch of the one-side bottom knitting structure 11A may vary. In the present embodiment, the textile yarn 10C is a yarn obtained by spinning natural short fibers, namely cotton, and has yarn knots (not shown) derived from the raw material of the cotton as the thick part. In addition, the textile yarn 10C also has yarn knots caused by uneven spinning of the fibers.

[0026] Furthermore, the one side knitted fabric 11 has a one side plating structure 11E which is paralleled along the other side surface (i.e., the back side surface 11C) of the one side base knitted structure 11A. The one side plating structure 11E is composed of an elastic yarn 10D which is more easily elastically deformed than the spun yarn 10C constituting the one side base knitted structure 11A. In the present embodiment, the elastic yarn 10D is a filament yarn having polyurethane filaments.

[0027] The other side knitted fabric 12 has the other side bottom knitted structure 12A constituting the weft knitted structure, and the other side bottom knitted structure 12A is in a state of being exposed on the other side. In the present embodiment, the other side bottom knitted structure 12A is a circular knitted plain stitch structure with the surface 12B on the front side facing the other side and the back side 12C facing one side. The plain stitch structure is composed of the same type of textile yarn 10E as the textile yarn 10C constituting the one side bottom knitted structure 11A. Therefore, in the loop portion 12D in the plain stitch structure of the other side bottom knitted structure 12A, the size of the hole thereof will be biased.

[0028] Furthermore, the other side knitted fabric 12 has the other side plating structure 12E which is paralleled along one side surface (i.e., the back side surface 12C) of the other side base knitted structure 12A. In the present embodiment, the other side plating structure 12E is composed of the same type of elastic yarn 10F as the elastic yarn 10D constituting the one side plating structure 11E. That is, the elastic yarn 10F constituting the other side plating structure 12E is more easily elastically deformed than the spun yarn 10E constituting the other side base knitted structure 12A.

[0029] The connecting yarn 10A is a false twisted yarn having filaments in a crimped state. The filaments are long enough to form a yarn without spinning a plurality of them together. In the present embodiment, the connecting yarn 10A is a false twisted yarn in a state where a plurality of nylon filaments are bundled.

[0030] The double-knitted fabric 10 can be knitted by a dial-cylinder circular loom 40 adjusted to an interlocking needle arrangement (see Figure 2 ) for production. In other words, the circular loom 40 is a device for producing the double-sided knitted fabric 10. Figure 2 As shown, the circular loom 40 is respectively applied with the first embodiment of the yarn feeder, i.e., the first yarn feeder 20 and the second yarn feeder 30, and the conventionally known yarn feeders, i.e., the yarn feeders 40A and 40B. In this embodiment, the above-mentioned yarn feeders are arranged in the needle cylinder rotation direction ( Figure 2 When viewed from the left side toward the right side in the figure, the yarn feeder 40B, the yarn feeder 40A, the second yarn feeder 30, the first yarn feeder 20, the yarn feeder 40B, ... are periodically arranged in the order.

[0031] Here, the second yarn feeder 30 has the same structure as the first yarn feeder 20. Therefore, hereinafter, for each structure in the first yarn feeder 20 and the second yarn feeder 30, the description of each structure in the second yarn feeder 30 is used as a representative for detailed description. In addition, for each structure in the first yarn feeder 20, according to the figure mark marked on each structure of the second yarn feeder 30, the figure is replaced with the figure of the tens place "2" and the detailed description is omitted.

[0032] The yarn feeder 40A is a conventionally known type that can set the yarn path of only one knitting yarn. The yarn feeder 40A uses the connecting yarn 10A as the knitting yarn and feeds the connecting yarn 10A to the knitting area 41E located downstream of the yarn feeder 40A in the cylinder rotation direction.

[0033] The yarn feeder 40B has the same structure as the yarn feeder 40A. The yarn feeder 40B uses the connecting yarn 10A as the knitting yarn and feeds the connecting yarn 10A to the knitting region 42E located downstream of the yarn feeder 40B in the needle cylinder rotation direction.

[0034] like Figure 3 to Figure 8 As shown, the second yarn supply device 30 includes a main body 31, a handle 33, and a guide member 33A.

[0035] like Figure 2 As shown, the main body 31 is a plate-like member that is screwed and arranged above the needle bed 42A of the needle dial 42 having the needle dial needles 42B in the circular knitting machine 40. Figure 6 As shown, the main body 31 is arranged radially outside the needle disc 42 ( Figure 6 Hereinafter, the state in which the main body 31 is set in the circular loom 40 is referred to as the "set state". In addition, in the following, the up, down, left, right, front, and back directions of each structure of the second yarn feeder 30 are explained according to the direction when the main body 31 is in the set state.

[0036] like Figure 3 to Figure 7 As shown, a long hole 31B is provided at the upper portion of the main body 31 for threading the main body 31 to the circular loom 40. In addition, a portion of the main body 31 located below the long hole 31B is provided with a thread for allowing an external thread (e.g. Figure 5 The handle 33 shown in the figure is screwed to the nut portion 31C of the main body 31. In addition, a yarn supply port 31A is provided at the portion of the main body 31 below the nut portion 31C, which passes through the main body 31 from the upper left front side to the lower right rear side. In addition, a yarn supply port 31A is provided at the lower edge of the main body 31, which extends radially outward from the lower edge toward the needle disk 42 (see FIG. Figure 6 ) protruding protrusion piece 32.

[0037] One side yarn supply port 31A is provided on the rear surface of the main body 31 (at Figure 4 The opening is the one between the paper surface and the front side. Figure 6 As shown, the rear surface is the surface on the radial inner side of the needle plate 42 in the set state.

[0038] The guide member 33A is a conventionally known ring guide that is fixed to other members by screwing. In the present embodiment, the guide member 33A is configured so that its eyelet (hole for passing a linear member such as yarn) is located on the extended line of the axis of one side yarn supply port 31A.

[0039] The handle 33 is a conventionally known circular pillar (with a head formed into an elongated cylindrical external thread). The handle 33 is fixed to the main body 31 by threading the guide member 33A with the nut portion 31C of the main body 31. In addition, the head of the handle 33 is used as a knob for operating the second yarn feeder 30 and for turning other components (such as Figure 2 The guide member 33B shown in the figure functions by being mounted to the support member of the second yarn supply device 30. In the present embodiment, the guide member 33B is a conventionally known roller guide with a fixing member.

[0040] like Figure 6 As shown, the protruding piece 32 is a plate-like structure that protrudes vertically from the lower edge of the main body 31 relative to the lower edge. The protruding piece 32 receives the knitting yarn from the needle 42B of the needle dial when it is set. Figure 6 The needle plate needle outlet area 42D is covered by the needle plate needle 42B in the circular loom 40 for receiving the knitting yarn (refer to Figure 2 The area extending radially outwardly is the textile yarn 10E).

[0041] A guide groove 30A is provided at the root of the protruding piece 32 protruding from the main body 31. The guide groove 30A is provided at the front surface of the main body 31 below the position where the yarn supply port 31A on one side is opened (see Figure 3 ) extends toward the lower right rear side. In this embodiment, one side of the guide groove 30A ( Figure 6 The wall on the upper right side of the center) is composed of the main body 31. Similarly, the wall on the opposite side ( Figure 6 The wall on the lower left side of the middle portion is formed by a protruding piece 32.

[0042] like Figure 3 , Figure 6 and Figure 8 As shown, in the protruding piece 32, a portion closer to the front than the guide groove 30A is provided with a yarn supply port 32A on the other side that penetrates the protruding piece 32 from the front upper side to the rear lower side. Figure 8 As shown, the yarn supply port 32A on the other side is on the lower side of the protruding piece 32 ( Figure 8 The end opening is the paper surface and the front side. Figure 6 As shown, this end face is the face which becomes the needle dial needle exit area 42D side in the setting state. In addition, the other side yarn supply port 32A is arranged to be inclined radially inwardly toward the needle dial needle exit area 42D in the setting state.

[0043] Next, a method for producing the double-sided knitted fabric 10 (hereinafter, also referred to as "method" in the description of the first embodiment) is described. In this method, a circular loom 40 (see FIG. 1 ) to which the first yarn feeder 20 and the second yarn feeder 30 and the interlocking needle pairs of the yarn feeders 40A and 40B are applied respectively is used. Figure 2 ) performs a setting process for setting the knitting yarn. In addition, in this method, a double-sided knitted fabric 10 is produced by a knitting process of knitting the knitting yarn set in the setting process using a circular loom 40.

[0044] In the setting process, the knitting yarn 10C knitted as the one-side base knitting structure 11A is sequentially passed through the eyelet of the guide member 23A and the one-side yarn supply port 21A of the first yarn supply device 20. At this time, the spun yarn 10C passes from the radially outer side of the needle plate 42, and the one-side yarn supply port 21A guides the spun yarn 10C toward the knitting area 41C. Here, the knitting area 41C is a knitting area in which the spun yarn 10C and the elastic yarn 10D are knitted in a paralleled state in the knitting area of ​​the cylinder needle 41B on the needle bed 41A of the needle cylinder 41 provided in the circular loom 40.

[0045] In the setting process, the elastic yarn 10D, which is the knitting yarn knitted as the one-side plating structure 11E, is sequentially hooked on the roller of the guide member 23B and the guide groove 20A of the first yarn feeder 20. At this time, the guide groove 20A guides the hooked elastic yarn 10D toward the knitting area 41C.

[0046] In addition, in the setting process, the knitting yarn, that is, the textile yarn 10E knitted as the other side bottom knitting structure 12A is passed from the upper side through the other side yarn supply port 32A of the second yarn supply device 30. At this time, the other side yarn supply port 32A guides the passed textile yarn 10E toward the knitting area 42C. Here, the knitting area 42C is a knitting area in which the textile yarn 10E and the elastic yarn 10F are knitted in a paralleled state in the knitting area of ​​the dial needles 42B on the needle bed 42A of the dial 42 provided in the circular loom 40.

[0047] In the setting process, the elastic yarn 10F, which is the knitting yarn knitted as the other side plating structure 12E, is sequentially hooked on the roller of the guide member 33B and the guide groove 30A of the second yarn feeder 30. At this time, the guide groove 30A guides the hooked elastic yarn 10F toward the knitting area 42C.

[0048] Moreover, in the setting process, the connecting yarn 10A as a knitting yarn is passed through the yarn feeder 40A. At this time, the yarn feeder 40A guides the passing connecting yarn 10A toward the knitting area 41E.

[0049] In the setting step, a connecting yarn 10A different from the connecting yarn 10A passing through the yarn feeder 40A is passed through the yarn feeder 40B as a knitting yarn. At this time, the yarn feeder 40B guides the passing connecting yarn 10A toward the knitting region 42E.

[0050] The knitting process is performed in the state where the above setting process is completed. Fig. 9 As shown in the knitting diagrams shown as F1 to F6 in FIG. 4 . Here, F1 is a knitting diagram showing the setting of knitting in the connecting yarn 10A passing through the yarn feeder 40A. In addition, F4 is a knitting diagram showing the setting of knitting in the connecting yarn 10A passing through the yarn feeder 40B. In addition, F2 is a knitting diagram showing the setting of knitting in the spun yarn 10C knitted as the one-side bottom knitting structure 11A. In addition, F5 is a knitting diagram showing the setting of knitting in the elastic yarn 10D knitted as the one-side plating structure 11E. In addition, F3 is a knitting diagram showing the setting of knitting in the spun yarn 10E knitted as the other-side bottom knitting structure 12A. In addition, F6 is a knitting diagram showing the setting of knitting in the elastic yarn 10F knitted as the other-side plating structure 12E.

[0051] The yarn feeder of the present disclosure can be used as a first yarn feeder 20 for feeding the knitting yarn for knitting the knitted fabric 11 on one side in a dial-needle-cylinder circular loom 40. Alternatively, the yarn feeder of the present disclosure can be used as a second yarn feeder 30 for feeding the knitting yarn for knitting the knitted fabric 12 on the other side in a circular loom 40. In the case where the yarn feeder of the present disclosure is the second yarn feeder 30, the second yarn feeder 30 guides the knitting yarn, i.e., the textile yarn 10E, knitted as the bottom knitting structure 12A on the other side, toward the knitting area 42C of the dial needle 42B through the yarn feed port 32A on the other side, and guides the knitting yarn, i.e., the elastic yarn 10F, knitted as the plating structure 12E on the other side, toward the knitting area 42C through the guide groove 30A. Thus, the second yarn feeder 30 can reduce the possibility of knitting out defective products in which the other side plating structure 12E appears where the other side bottom knitting structure 12A should appear, and the other side bottom knitting structure 12A appears where the other side plating structure 12E should appear. In addition, when the yarn feeder of the present disclosure is the first yarn feeder 20, the first yarn feeder 20 guides the knitting yarn 10C knitted as the one side bottom knitting structure 11A toward the knitting area 41C of the cylinder needle 41B through the one side yarn feed port 21A, and guides the knitting yarn 10D knitted as the one side plating structure 11E toward the knitting area 41C through the guide groove 20A. Thus, the first yarn feeder 20 can reduce the possibility of knitting out defective products in which the one side plating structure 11E appears where the one side bottom knitting structure 11A should appear, and the one side bottom knitting structure 11A appears where the one side plating structure 11E should appear. Through these functions, the yarn feeder of the present disclosure can reduce the possibility of knitting defective products when producing a double-sided knitted fabric 10 in which the one side knitted fabric 11 and the other side knitted fabric 12 are respectively made into a structure in which a plating yarn structure is combined with a base knitted structure.

[0052] In the circular loom 40 described above, the knitting yarn, i.e., the textile yarn 10E knitted as the other side bottom knitting structure 12A, is received by the dial needle 42B in the dial needle outlet area 42D and is pulled toward the knitting area 42C of the dial needle 42B. Here, according to the second yarn feeder 30, since the knitting yarn, i.e., the textile yarn 10E, is fed to the dial needle outlet area 42D through the other side yarn feeder 32A, the dial needle 42B of the circular loom 40 can directly receive the textile yarn 10E and pull it into the knitting area 42C. Thus, it is possible to provide a yarn feeder that shortens the length of the portion of the textile yarn 10E that is not guided by other components in the yarn path of the textile yarn 10E from the other side yarn feeder 32A to the knitting area 42C of the dial needle 42B, and further reduces the possibility of the direction in which the yarn path of the textile yarn 10E extends being changed.

[0053] In the circular loom 40, the textile yarn 10E is pulled into the knitting area 42C of the dial needle 42B in the direction from the radial outer side to the radial inner side of the dial 42. Here, according to the second yarn feeder 30, the knitting yarn, i.e., the textile yarn 10E, which passes through the other side yarn feed port 32A, extends in a state of being inclined radially inward toward the dial needle outlet area 42D. Thus, a yarn feeder can be provided that can more smoothly pull in the textile yarn 10E through the dial needle 42B.

[0054] In addition, according to the above method, the second yarn feeder 30 guides the knitting yarn, that is, the textile yarn 10E knitted as the other side base knitting structure 12A toward the knitting area 42C of the dial needle 42B through the other side yarn feed port 32A, and guides the knitting yarn, that is, the elastic yarn 10F knitted as the other side plating structure 12E toward the knitting area 42C through the guide groove 30A. As a result, the second yarn feeder 30 reduces the possibility of knitting defective products in which the other side plating structure 12E appears where the other side base knitting structure 12A should appear, and the other side base knitting structure 12A appears where the other side plating structure 12E should appear. In addition, the first yarn feeder 20 guides the knitting yarn, that is, the textile yarn 10C knitted as the one side base knitting structure 11A toward the knitting area 41C of the cylinder needle 41B through the one side yarn feed port 21A, and guides the knitting yarn, that is, the elastic yarn 10D knitted as the one side plating structure 11E toward the knitting area 41C through the guide groove 20A. Thus, the first yarn feeder 20 reduces the possibility of knitting defective products such as one side plating structure 11E where one side bottom knitting structure 11A should be, and one side bottom knitting structure 11A where one side plating structure 11E should be. According to these effects, the method can reduce the possibility of knitting defective double-sided knitted fabrics.

[0055] In addition, according to this method, by using the guide member (guide member 23A, guide member 23B or guide member 33B) installed on the yarn feeder to guide the knitting yarn guided by one of the yarn feed ports, guide grooves or the other yarn feed ports of the yarn feeder (first yarn feeder 20 or second yarn feeder 30), the yarn path arrangement space of the knitting yarn guided by the yarn feeder can be expanded. As a result, the possibility of the direction of the knitting yarn path guided by the yarn feeder being changed can be further reduced.

[0056] In addition, according to this method, the yarn path arrangement space of the knitting yarn guided by the yarn feeder (the first yarn feeder 20 or the second yarn feeder 30) is expanded toward the upstream side when viewed in the rotation direction of the needle cylinder in the circular loom 40. As a result, the direction in which the yarn path of the knitting yarn from the above-mentioned guide member (the guide member 23A, the guide member 23B or the guide member 33B) to the yarn feeder extends is along the direction in which the yarn path of the knitting yarn from the yarn feeder to the knitting area extends, thereby reducing the damage to the knitting yarn caused by friction with the yarn feeder.

[0057] <Second Embodiment>

[0058] Next, a method for producing a double-sided knitted fabric according to a second embodiment (hereinafter, also referred to as a "method" in the description of the second embodiment) is described. The method is an embodiment in which the circular loom 40 used in the method for producing a double-sided knitted fabric according to the first embodiment is used, and the application of a yarn feeder to the circular loom 40 and the manner of knitting the knitting yarn are changed.

[0059] In this method, the first yarn feeder 20 and the second yarn feeder 30 and the yarn feeders 40A and 40B used in the method for producing a double-sided knitted fabric of the first embodiment are taken as a group, and an appropriate number of these groups are applied to the circular loom 40. When these yarn feeders are viewed in the rotation direction of the needle cylinder in the circular loom 40, they are periodically arranged in the order of the yarn feeder 40B, the second yarn feeder 30, the first yarn feeder 20, the yarn feeder 40A, the yarn feeder 40B, ...

[0060] In this method, the circular loom 40 using the interlocking needles of the above-mentioned yarn feeders is subjected to the following steps: Fig.10 The double knitted fabric is produced by knitting the knitting steps of the knitting diagrams shown as F1 to F4 in FIG. These knitting diagrams show the same knitting steps as the knitting steps of the double knitted fabric of the type called "Ponte de Roma".

[0061] exist Fig.10 Among them, F1 is a knitting diagram showing the setting of knitting in the knitting yarn passing through the yarn feeder 40A (rib knitting with one skipped stitch). In addition, F2 is a knitting diagram showing the setting of knitting in the knitting yarn passing through the yarn feeder 40B (rib knitting with one skipped stitch set in the part of the rib knitting of F1 with a skipped stitch). These knitting yarns constitute the organization of the connecting yarn in the produced double-sided knitted fabric. In addition, as the knitting yarn passing through the yarn feeder 40A and the yarn feeder 40B, appropriately selected textile yarns or filament yarns can be used. In the present embodiment, as the knitting yarn passing through the yarn feeder 40A and the yarn feeder 40B, yarns of the same type are used.

[0062] In addition, F3 is a knitting diagram showing the knitting setting (based on the (bare yarn) plain needle knitting of the dial needle 42B) in the knitting yarn guided by the second yarn feeder 30. Here, the "knitting yarn guided by the second yarn feeder 30" refers to two yarns, namely, the knitting yarn guided through the yarn supply port 32A on the other side of the second yarn feeder 30 and the knitting yarn guided by being hung on the guide groove 30A. These knitting yarns are guided in a two-ply state to the knitting area of ​​the dial needle 42B located directly below the downstream side of the needle cylinder rotation direction of the circular loom 40 relative to the second yarn feeder 30. In this knitting area, the knitting yarn guided from the yarn supply port 32A on the other side constitutes the other side bottom knitting structure in the produced double-sided knitted fabric. In addition, in the above-mentioned knitting area, the knitting yarn guided from the guide groove 30A constitutes the other side added yarn structure in the produced double-sided knitted fabric. In this embodiment, as the knitting yarn for constituting the other side bottom knitting structure, the same type of yarn as the knitting yarn passing through the yarn feeder 40A and the yarn feeder 40B is used. In addition, as the knitting yarn for constituting the other side plating structure, a filament yarn having polyurethane filaments is used.

[0063] In addition, F4 is a knitting diagram showing the knitting setting (based on (bare yarn) plain needle knitting of the cylinder needle 41B) in the knitting yarn guided by the first yarn feeder 20. Here, the "knitting yarn guided by the first yarn feeder 20" refers to two yarns, namely, the knitting yarn guided through the yarn feed port 21A on one side of the first yarn feeder 20 and the knitting yarn guided by being hung on the guide groove 20A. These knitting yarns are guided in a two-ply state to the knitting area of ​​the cylinder needle 41B located directly below the downstream side of the needle cylinder rotation direction of the circular loom 40 relative to the first yarn feeder 20. In this knitting area, the knitting yarn guided from the yarn feed port 21A on one side constitutes one side bottom knitting structure in the produced double-sided knitted fabric. In addition, in the above-mentioned knitting area, the knitting yarn guided from the guide groove 20A constitutes one side added yarn structure in the produced double-sided knitted fabric. In this embodiment, the same type of yarn as the knitting yarn passing through the yarn feeder 40A and the yarn feeder 40B is used as the knitting yarn for constituting the bottom knitting structure on one side. In addition, the same type of filament yarn as the knitting yarn for constituting the knitting yarn for constituting the above-mentioned other side plating structure is used as the knitting yarn for constituting the plating structure on one side.

[0064] According to the above method, the same effects as those brought about by the above method of producing a double knitted fabric according to the first embodiment can be obtained.

[0065] In addition, according to the above method, the circular loom 40 can weave a double-sided knitted fabric with a five-layer structure as a whole by the same weaving process as the weaving process of the Roman cloth. Therefore, this method can produce a double-sided knitted fabric with a five-layer structure as a whole and having the advantages of the Roman cloth (it is less likely to "stretch" or "sag" as a knitted fabric).

[0066] (1) In the method for producing a double-sided knitted fabric of the first embodiment or the second embodiment, two types of yarn feeders, namely the yarn feeder of the present invention and the yarn feeder of the type capable of setting the yarn path of only one knitting yarn, are applied to a circular loom. Furthermore, in the yarn feeder of the type capable of setting the yarn path of only one knitting yarn, a knitting yarn having a structure for constituting a connecting yarn in the double-sided knitted fabric is passed through. However, the method for producing a double-sided knitted fabric of the present invention may also be performed by applying only the yarn feeder of the present invention to a circular loom. In this case, the knitting yarn for constituting the structure of the connecting yarn can be guided to the knitting area of ​​the knitting yarn by passing through either one of the yarn feed ports on one side or the yarn feed port on the other side of the yarn feeder.

[0067] (2) The yarn feeder of the first embodiment is equipped with a guide member for further guiding the braided yarn guided by any one of the yarn supply port on one side, the guide groove or the yarn supply port on the other side of the yarn feeder. However, the yarn feeder of the present disclosure may not be equipped with the above-mentioned guide member. In addition, the yarn feeder of the present disclosure may also be equipped with a guide member for further guiding the braided yarn guided by other yarn feeders applied to the same circular loom. In this case, the yarn path arrangement space of the braided yarn guided by the above-mentioned other yarn feeders is expanded beyond the arrangement space allocated to the other yarn feeders, which can further reduce the possibility of the direction in which the yarn path extension of the braided yarn is replaced.

[0068] (3) In the yarn feeder disclosed herein, the guide groove is not limited to being provided at the root of the protruding piece from the body, but may be provided at a position close to the protruding front end of the protruding piece from the root. In this case, the protruding piece constitutes at least a part of the wall of the guide groove.

[0069] The above specific embodiments of the present disclosure are described through the first embodiment and the second embodiment. However, it is obvious that those skilled in the art can make various substitutions, modifications, and changes without departing from the purpose of the present disclosure. That is, the specific embodiments of the present disclosure can include all substitutions, modifications, and changes that do not depart from the spirit and purpose of the claims attached to this specification. For example, as specific embodiments of the present disclosure, the following various methods can be implemented.

Claims

1. A yarn feeder for use in a needle-dial cylinder type circular loom as a device for producing double-sided knitted fabrics, The double-sided knitted fabric has a structure in which a knitted fabric on one side constituting a surface of one side and a knitted fabric on the other side constituting a surface of the other side are connected to form a knitted fabric by a connecting yarn. The one side knitted fabric has a one side base knitted structure exposed on the one side and a one side plating structure paralleled along the other side surface of the one side base knitted structure. The other side knitted fabric comprises the other side base knitted structure exposed on the other side and the other side plating structure paralleled along the one side surface of the other side base knitted structure, The yarn feeder is characterized in that it has: A main body, arranged at a position radially outside the needle disc than the needle bed of the needle cylinder in the circular loom; A yarn supply port on one side is opened in the main body on the radial inner side of the needle disk, and when the knitting yarn knitted as the one side bottom knitting structure passes from the radial outer side, the knitting yarn is guided toward the knitting area of ​​the cylinder needles arranged on the needle bed of the needle cylinder; A guide groove for guiding the knitting yarn knitted as the other-side plating tissue or the one-side plating tissue toward a knitting area of ​​a dial needle disposed on a needle bed of the dial or a knitting area of ​​the cylinder needle; a protruding piece that protrudes from the main body toward the radially outer side and constitutes at least a portion of a wall of the guide groove; and The other side yarn supply port is arranged on the protruding piece, and when the knitting yarn knitted as the other side bottom knitting structure passes through, the knitting yarn is guided toward the knitting area of ​​the needle dial needle.

2. The yarn feeder according to claim 1, characterized in that: The protruding piece covers the needle dial needle exit area from the side where the needle dial needle receives the knitting yarn, and the needle dial needle exit area is the area where the needle dial needle in the circular loom extends to the radial outside in order to receive the knitting yarn. The other-side yarn supply port is opened at an end surface of the protruding piece on a side that becomes a needle exit area of ​​the needle dial.

3. The yarn feeder according to claim 2, characterized in that: The yarn supply port on the other side is inclined toward the radial inner side toward the needle outlet area of ​​the needle disk.

4. A method for producing a double-sided knitted fabric by a needle-dial cylinder type circular loom, The double-sided knitted fabric has a structure in which a knitted fabric on one side constituting a surface of one side and a knitted fabric on the other side constituting a surface of the other side are connected to form a knitted fabric by a connecting yarn. The one side knitted fabric has a one side base knitted structure exposed on the one side and a one side plating structure paralleled along the other side surface of the one side base knitted structure. The other side knitted fabric comprises the other side base knitted structure exposed on the other side and the other side plating structure paralleled along the one side surface of the other side base knitted structure, The method for producing a double-sided knitted fabric is characterized in that The first yarn feeder and the second yarn feeder as any one of claims 1 to 3 are applied to the circular loom, respectively, and in the following state, that is, The knitting yarn for knitting the bottom knitting structure on one side passes through the yarn supply port on one side of the first yarn feeder from the radially outer side. The knitting yarn knitted as the one-side plating structure is hung on the guide groove in the first yarn feeder, The knitting yarn knitted as the other side plating structure is hung on the guide groove in the second yarn feeder, and In a state where the knitting yarn knitted as the other side bottom knitting structure passes through the other side yarn supply port of the second yarn feeder, The double knitted fabric is produced through a knitting process of knitting these knitting yarns by the circular loom.

5. The method for producing a double-sided knitted fabric according to claim 4, characterized in that: A guide member for guiding the knitting yarn is installed in the yarn feeder, and the knitting process is performed in a state where the knitting yarn guided by the guide member is further guided by any one of the one side yarn supply port, the guide groove or the other side yarn supply port in the yarn feeder.

6. The method for producing a double-sided knitted fabric according to claim 5, characterized in that: The knitting step is performed in a state where the guide member is arranged on the upstream side of the yarn supplier when viewed in the rotation direction of the needle cylinder in the circular loom.

Images