KR20210104580A - Knitted fabric knitting method - Google Patents

Abstract

The present invention provides a knitted fabric knitting method to switch between the standard plating knitting and the reverse plating knitting without using a dedicated mechanism for switching the plating knitting. According to the knitted fabric knitting method to switch between the standard plating knitting and the reverse plating knitting, a switching operation is performed at least once, in which a carriage (7) is moved only in one direction, and the standard plating knitting and the reverse plating knitting are switched while knitting a stitch row (40) arranged in a knitting width direction by one cam system (6) provided in the carriage (7). When performing the above switching operation, a yarn feeding port (1) in an injection supply position (P1) is moved toward a supplementary yarn supply position (P2), and a yarn feeding port (2) in the supplementary yarn supply position (P2) is moved toward the injection supply position (P1).

Description

Knitting method of knitted fabric {KNITTED FABRIC KNITTING METHOD}

The present invention relates to a knitting method of a knitted fabric including plating knitting.

Conventionally, knitting a knitted fabric using a flat knitting machine having a needle bed having a plurality of knitting needles has been made. Fig. 6 is a schematic view of the needle bed 30 of the flat knitting machine as seen from its upper surface. As shown in Fig. 6, at the tip of the needle bed 30 on the side of the needle bed gap, sinkers 5A to 5C parallel to each knitting needle 3A to 3C are provided. has been The sinkers 5A to 5C are formed when the knitting yarn 1Y (2Y) fed into the hook 3F of the knitting needles 3A to 3B is drawn into the needle bed 30 . , a member for suppressing the entire knitting yarn 1Y (2Y) from being drawn into the needle bed 30 side. By suppressing the knitting yarn 1Y(2Y) by the sinkers 5A to 5C, a sinker loop 4S connecting the stitches 4 and 4 is formed.

Fig. 6 is also a schematic diagram showing a state of plating knitting in which two different knitting yarns are knitted in parallel. In plating knitting, a main yarn disposed on the front side of the knitted fabric and a supplemental yarn disposed on the back side of the knitted fabric are drawn into one knitting needle 3A ( 3B). In Fig. 6, the first knitting yarn 1Y fed from the first feeding yarn opening 1 of the first carrier 11 is injected, and the second knitting yarn feeding fed from the second feeding yarn opening 2 of the second carrier 12. (2Y) is an appendix. The first sand feeding port 1 is disposed at the injection supply position, which is a predetermined position seen from the carriage. The second yarn feeding port 2 is disposed at a supplementary yarn feeding position, which is a predetermined position viewed from the carriage. Since the second yarn feeder 2 is located closer to the first yarn feeder 1 than the first yarn feeder 1 with respect to the knitting needle 3B through which both knitting yarns 1Y and 2Y are drawn, the sinker 5C from the second yarn feeder 2 is ), the angle between the second knitting yarn 2Y and the horizontal line is greater than the angle at the first knitting yarn 1Y. That is, in the hook 3F of the knitting needle 3B, the second knitting yarn 2Y is disposed at a higher position than the first knitting yarn 1Y. Due to the vertical relationship between the first knitting yarn 1Y and the second knitting yarn 2Y in knitting the knitted fabric, the first knitting yarn 1Y is disposed on the surface side of the knitted fabric, and the second knitting yarn 2Y is ) is arranged on the back side of the knitted fabric.

Patent Documents 1 to 3 disclose a technique for performing reverse plating knitting in which a second knitting yarn is arranged on the surface side of the knitted fabric in addition to the standard plating knitting in which the first knitting yarn is arranged on the surface side of the knitted fabric. have. In the technique of Patent Document 1, when the first knitting yarn and the second knitting yarn are drawn in by the knitting needle in the reverse plating knitting, the sinker is oscillated to exchange the upper and lower positions of the first knitting yarn and the second knitting yarn on the sinker. In Patent Documents 2 and 3, the timing of vertical movement of the knitting needle is changed in reverse plating knitting, and the vertical position of the first knitting yarn and the second knitting yarn is exchanged. These operations are performed in a state in which the sand feeder is held at a predetermined position.

Japanese Patent Laid-Open No. 2016-176159 Japanese Patent Laid-Open No. 2018-178292 Japanese Patent Laid-Open No. 2018-178293

At the place where the standard plating knitting and the reverse plating knitting are switched, "mixed colors" may occur in which a part of the lead yarn is exposed on the surface side of the knitted fabric due to the timing of switching, etc. A method of organizing is requested.

The present invention has been made in consideration of the above circumstances, and it is an object of the present invention to provide a knitting method for a knitted fabric capable of stably knitting a knitted fabric because color mixing is unlikely to occur when switching between a standard plating knitting and a reverse plated knitting knitting. to be one of

<1> The method for knitting a knitted fabric of the present invention comprises:

A flat knitting machine having a carriage on which at least one cam system for operating a knitting needle is mounted, a first yarn feeder for feeding a first knitting yarn to the knitting needle, and a second yarn feeder for feeding a second knitting yarn to the knitting needle is used. So,

Viewed from the carriage, when defining the injection supply position to which the injection is supplied and the additive supply position to which the additive is supplied,

a standard plating knitting in which the first sand feeding hole is disposed at the injection supply position and the second sand feeding hole is disposed at the supplementary yarn feeding position;

Inverted plating knitting in which the second sand feeding hole is disposed at the injection supply position, and the first sand feeding hole is disposed at the additive feeding position

A method for knitting a knitted fabric to be switched, the method comprising:

At least one switching operation of moving the carriage in one direction and switching the standard plating knitting and the inverting plating knitting while knitting the stitch row arranged in the knitting width direction by one of the at least one cam system conducted once,

During the switching operation, among the first and second sand feeding openings, the injection feeding port located at the injection supply position is moved toward the supplementary yarn supply position, and the feeding opening located at the supplementary yarn supply position is moved to the above-mentioned Move toward the injection supply position.

In the knitting method of the knitted fabric, the position of the first yarn feeding yarn and the position of the second yarn feeding yarn are exchanged during the switching operation. The knitting yarn that was scanned before the switching operation becomes the added yarn after the switching operation, and the knitting yarn that was the added yarn before the switching operation is scanned after the switching operation. That is, the knitting yarn fed from the yarn feeding port disposed at the injection supply position is a staple yarn, and the knitting yarn fed from the yarn feeding port disposed at the injection and addition yarn feeding position is the knitting yarn.

Here, in the case of switching between the standard plating knitting and the reverse plated knitting, the knitting needle immediately before the switch hooks the first knitting yarn and the second knitting yarn, and then the knitting needle immediately after switching to the needle bed gap is the first knitting yarn and the second knitting yarn. It is necessary to complete the replacement of the positions of both feeding holes in the time until it is hung. For example, when switching from the standard plating knitting to the reverse plated knitting, the knitting needle immediately before switching is the knitting needle for knitting the last stitch of the standard plating knitting, and the knitting needle immediately after the switching is the first stitch of the reverse plating knitting It is a guide to organizing the

<2> As an aspect of the method for knitting a knitted fabric of the present invention,

In the switching operation, after passing at least one of the first and second sand feeding openings through the final position where the at least one feeding opening is finally arranged, inverting and placing it in the final position form can be given.

The final position refers to the normal position of the yarn feeder which is separated by a predetermined length in the traveling direction of the carriage from the specific position of the carriage after the standard plating knitting and the reverse plating knitting are switched.

<3> As an aspect of the knitting method of the knitted fabric according to the aspect <2>,

A form in which the yarn feeding port, which moves from the injection supply position to the additive supply position, is moved to a position beyond the additive supply position, is disposed at the additive supply position.

The additive supply position in this aspect <3> corresponds to the final position in the said aspect <2>.

<4> As an aspect of the knitting method of the knitted fabric according to aspect <2> or aspect <3>,

The form of arrange|positioning at the said injection supply position after moving the thread feeding opening which moves from the said addition supply position to the said injection supply position to a position beyond the said injection supply position is mentioned.

The injection supply position in this aspect <4> corresponds to the last position in the said aspect <2>.

<5> As an aspect of the method for knitting a knitted fabric of the present invention,

In the switching operation, a position where the sand feeding port moving from the injection supply position to the additive supply position and the sand supply opening moving from the additive supply position to the injection supply position intersect intersect is defined as the injection supply position and the additive supply position. A form in which the position is closer to the additive supply position than the intermediate position of the position is exemplified.

<6> As an aspect of the method for knitting a knitted fabric of the present invention,

Between the start to the end of the switching operation, the operation of the knitting needle for knitting the first stitch after the end of the switching operation is temporarily stopped.

<7> As an aspect of the method for knitting a knitted fabric of the present invention,

The flat knitting machine includes a self-propelled first carrier and a second carrier moving independently of the carriage along a moving direction of the carriage,

The first carrier is provided with the first feeding port,

The second carrier is provided with the second feeding port,

In the switching operation, the first carrier and the second carrier may be individually moved.

In the knitting method of a knitted fabric of the present invention, when viewed from the carriage, the first and second feeder yarns are moved in opposite directions to exchange the positions of the first and second yarn feeders, so that the The upper and lower positions of the first knitting yarn and the second knitting yarn are smoothly replaced. When viewed from the carriage, by moving the first and second feeder dunes in opposite directions, standard plating knitting and reverse plating knitting can be performed by one cam system while moving the carriage in only one direction. In addition, even if one cam system is moved in one direction to perform standard plating knitting and reverse plating knitting, it is difficult to cause color mixing in the knitted fabric. Further, in the knitting method of a knitted fabric of the present invention, since the carriage is not reversed when knitting a row of stitches, the knitted fabric is efficiently knitted.

The first knitting yarn and the second knitting yarn fixed by the hook of the knitting needle and extending to each feeder opening are overlapped and entangled when the positions of the two yarn feeders are exchanged. In the knitting method of the knitted fabric of the aspect <2>, at least one of the first and second yarn feeding holes is passed through the final position where the yarn feeding holes are finally arranged. By performing such an operation, the position where the first knitting yarn and the second knitting yarn are intertwined approaches the side opposite to the traveling direction of the carriage and the side on which the last stitch of the plating knitting before switching is arranged. As a result, the upper and lower positions of the first knitting yarn and the second knitting yarn are easily exchanged.

In the knitting method of the knitted fabric of the above aspect <3>, by moving the yarn feeding port moving from the injection supply position to the supplementary yarn supply position to a position beyond the supplementary yarn supply position, angle increases. As a result, the angle between the stitching and the scanning becomes large, and the position where the scanning and the stitching are intertwined tends to be closer to the side where the last stitch of the plating knitting before switching is arranged.

In the knitting method of the knitted fabric of the above aspect <4>, by moving the yarn feeding port moving from the additive feeding position to the scanning feeding position to a position beyond the scanning feeding position, the scan extending from the yarn feeding port to the sinker and the horizontal line angle becomes smaller. As a result, the angle between the scan and the appending becomes large, and the position where the scan and the appending are intertwined tends to be closer to the side where the last stitch of the plating knitting before switching is arranged.

In the knitting method of the knitted fabric of the above aspect <5>, the position where the yarn feeding mouth facing the additive supply position and the yarn feeding mouth facing the scanning supply position intersect, that is, the position where the two yarn feeding openings intersect, is defined as the position of the injection supply position and the additive supply position. It is positioned closer to the additive supply position than the intermediate position. By doing in this way, the angle between the knitting yarn and the horizontal line extending from each yarn feeding hole is increased at the position where both yarn feeding holes intersect. As a result, the upper and lower positions of the first knitting yarn and the second knitting yarn are easily interchanged. The knitting method of the knitted fabric of the aspect <5> is particularly effective when the moving speed of the carriage is high.

In the knitting method of the knitted fabric of the aspect <6>, the knitting needle is temporarily stopped during the switching operation. By doing so, time for replacing the upper and lower positions of the first knitting yarn and the second knitting yarn can be made, so that the upper and lower positions of both knitting yarns are exchanged more reliably.

As shown in the knitting method of the knitted fabric of aspect <7>, if the first carrier and the second carrier are a self-propelled type that moves independently of the movement of the carriage, the upper and lower positions of the first knitting yarn and the second knitting yarn during the switching operation can be replaced with agility. Therefore, it is possible to switch between the standard plating knitting and the inverted plating knitting in a short span. In addition, if the first carrier and the second carrier are individually movable, the knitting method of the knitted fabric of the above aspect <2> is easy to implement.

1A and 1B are explanatory views for explaining a knitting method of a knitted fabric according to the first embodiment.
Fig. 2 is a view showing a photograph of a knitted fabric obtained by the method for knitting a knitted fabric according to the first embodiment.
3 is a view showing a photograph of a knitted fabric obtained by a knitting method of a knitted fabric according to another example according to the first embodiment.
4 is an explanatory diagram for explaining a method of knitting a knitted fabric according to the second embodiment.
5 is an explanatory diagram for explaining a method of knitting a knitted fabric according to the third embodiment.
Fig. 6 is a schematic diagram showing a state of knitting yarn on a needle bed in plating knitting.

<Embodiment 1>

1, in standard plating knitting in which the first knitting yarn 1Y is disposed on the surface side of the knitted fabric, and the second knitting yarn 2Y is disposed on the surface side of the knitted fabric. A knitting method of a knitted fabric that appropriately switches the reverse plating knitting arranged in the . In Fig. 1, only the front needle bed 30 involved in knitting is shown, and the rear needle bed opposing the front needle bed is omitted. The flat knitting machine used in the knitting method of this example may be a two-bed flat knitting machine or a four-bed flat knitting machine. The knitting needle provided in the flat knitting machine may be a latch needle provided with a latch for opening and closing a hook, or a compound needle provided with a slider for opening and closing the hook.

The flat knitting machine has a carriage 7 on which at least one cam system 6 is mounted. When knitting the knitted fabric, the carriage 7 moves along the longitudinal direction of the needle bed 30 , and the cam system 6 operates each knitting needle 3A to 3C of the needle bed 30 . The cam system 6 and the carriage 7 shown in Fig. 1 are simplified, and the actual cam system 6 and the carriage 7 are different in shape and size.

Further, the flat knitting machine of this example includes a first carrier 11 for feeding the first knitting yarn 1Y and a second carrier 12 for feeding the second knitting yarn 2Y. Each of the first carrier 11 and the second carrier 12 is provided with a traveling roller in contact with the rail, and travels along the rail. In this example, when viewed from the front needle bed 30 in the opposite direction of the front needle bed 30 and the rear needle bed (not shown), the first carrier 11 is outward, and the second carrier 12 is ) is placed inside. That is, the first carrier 11 and the second carrier 12 are installed on different travel routes, and are independently autonomous. In order to make the carriers 11 and 12 independent, the structure provided with the belt to which the carriers 11 and 12 are fixed, and the motor which moves the belt is mentioned, for example. In this configuration, the positions of the carriers 11 and 12 change according to the movement of the belt.

In this example, referring to Fig. 1, the carriage 7 is moved only in one direction, and while knitting the stitch string 40 by one cam system 6 provided in the carriage 7, the standard A transition operation for switching from the plating knitting to the reverse plating knitting will be described. The white arrow below the carriage 7 indicates the traveling direction of the carriage 7 and the knitting direction of the stitch row 40 . In Fig. 1(A), a portion constituting a stitch row 40 by standard plating knitting in which the first knitting yarn 1Y is the main yarn and the second knitting yarn 2Y is the additive yarn. The state in which the stitches 4 of are knitted is shown. In the standard plating knitting, knitting is performed in a state where the first yarn feeding mouth 1 is disposed at the injection supply position P1 and the second yarn feeding mouth 2 is disposed at the additive yarn feeding position P2.

The scanning supply position P1 and the additive supply position P2 are normal positions separated by a predetermined length in the traveling direction of the carriage 7 from the specific position of the carriage 7 . The distance L1 between the specific position of the carriage 7 and the scanning supply position P1 is longer than the distance L2 between the specific position of the carriage 7 and the additive supply position P2. Since the carriage 7 moves when knitting the row of stitches 40 , the scanning and feeding positions P1 and P2 as seen from the outside of the flat knitting machine also move together with the carriage 7 . Here, the scanning supply position P1 and the supplementary yarn supply position P2 change to appropriate positions according to the knitting conditions such as the material of the knitting yarn and the knitting speed.

The second yarn feeder 2 is positioned closer than the first yarn feeder 1 in the longitudinal direction of the needle bed 30 to the knitting needle 3B to which the last stitch 4 of the standard plating knitting is bonded. is in Therefore, the angle β between the second knitting yarn 2Y extending from the second feeding yarn opening 2 to the sinker 5C and the horizontal line is the first knitting yarn extending from the first knitting yarn 1Y to the sinker 5C. It becomes larger than the angle (α) between (1Y) and the horizontal line. The sinker 5C is positioned adjacent to the knitting needle 3B in the traveling direction of the carriage 7 . That is, in the hook 3F, the second knitting yarn 2Y is disposed at a higher position than the first knitting yarn 1Y. Due to the vertical relationship between the first knitting yarn 1Y and the second knitting yarn 2Y in knitting the knitted fabric, the first knitting yarn 1Y is disposed on the surface side of the knitted fabric as a scan, and the second knitting yarn 1Y (2Y) is arranged on the back side of the knitted fabric as an attached yarn. The first knitting yarn 1Y and the second knitting yarn 2Y are caught by the hook 3F of the knitting needle 3B, and their positional relationship is fixed.

When switching from the state of Fig. 1(A) to the reverse plating knitting, as shown in Fig. 1(B), the speed of the carriage 7 (for example, 0.8 m/s to 1.0 m/s) is not slowed down. Instead of replacing the position of the 1st feeding sand dunes (1) and the 2nd feeding sand dunes (2). More specifically, while moving the first sand feeding hole 1 in the injection supply position P1 to the supplementary yarn supply position P2, the second sand feeding hole 2 in the supplementary yarn supply position P2 is injected Move to the supply position (P1). The first knitting yarn 1Y fed from the first yarn feeding hole 1 moving toward the supplementary yarn supply position P2 becomes a staple yarn, and fed from the second yarn feeding hole 2 moving toward the injection feeding position P1. The second knitting yarn 2Y to be used becomes a scan. In this example, the 1st carrier 11 provided with the 1st sand feed opening 1 is moved slower than the moving speed of the carriage 7 in the same direction as the carriage 7 . Further, the second carrier 12 provided with the second sand feeder 2 is moved faster than the moving speed of the carriage 7 in the same direction as the carriage 7 . By doing so, when viewed from a specific position of the carriage 7 , the first carrier 11 moves in a direction opposite to the moving direction of the carriage 7 , and the second carrier 12 moves in the moving direction of the carriage 7 . Move. When viewed from the carriage 7 moving here, if the first carrier 11 and the second carrier 12 are moved at the same speed at the same time, the scanning supply position P1 and the additive supply position P2 are At the intermediate position (CP) of That is, the first rapid sand dunes 1 and the second rapid sand dunes 2 intersect at the intermediate position CP. Unlike this example, by stopping the first carrier 11 , the first carrier 11 may be moved in a direction opposite to the moving direction of the carriage 7 when viewed from the carriage 7 . Alternatively, when the moving speed of the carriage 7 is slow, the motor for moving the first carrier 11 may be reversely rotated to move the first carrier 11 in the opposite direction to the moving direction of the carriage 7 .

Repositioning of the first rapid sand dunes 1 and the second rapid sand dunes 2 needs to be completed while the following conditions I and II are satisfied.

·Condition I … A state in which the last stitch of the standard plating knitting is caught and fixed by the hook 3F of the knitting needle 3B in the process of being lowered.

・Condition II … A state before the first knitting yarn 1Y and the second knitting yarn 2Y are caught and fixed by a hook 3F provided in the knitting needle 3C for forming the first stitch of the reverse plating knitting.

In Fig. 1B, although the first knitting yarn 1Y and the second knitting yarn 2Y are arranged in the hook 3F of the knitting needle 3C, they are not caught on the hook 3F of the knitting needle 3C.

In Fig. 1(A), when viewed from the front needle bed 30 side in the arrangement direction of the front needle bed 30 and the rear needle bed not shown in the drawing, the first sand feeding hole 1 is the second sand feeding hole ( 2), in the case where the first knitting yarn 1Y and the second knitting yarn 2Y are in contact with the sinker 5C, in the case of being outside the first knitting yarn 1Y, the first knitting yarn 1Y is the sinker 5C and the second knitting yarn 2Y ) is easy to get caught between. Therefore, as shown in Fig. 1B, even when the first yarn feeder 1 is moved to the additive feeding position P2, the first knitting yarn in the vicinity of the tip side of the sinker 5C ( The position where 1Y) and the second knitting yarn 2Y are intertwined hardly deviate from the position close to the last stitch 4 of the standard plating knitting that is joined to the knitting needle 3B. That is, when viewed from the front needle bed 30 side, it is difficult to perform the switching operation in a state in which the sand feeding hole at the injection supply position P1 is outward than the sand feeding hole at the supplementary yarn supply position P2. Therefore, in this example, the auxiliary operation A and the auxiliary operation B are performed so that the position where the first knitting yarn 1Y and the second knitting yarn 2Y are intertwined is deviated from the position close to the last stitch 4 of the standard plating knitting. is being carried out The details of the auxiliary operation A and the auxiliary operation B will be described later.

Unlike this example, when the first yarn feeder 1 is inside the second yarn feeder 2 when viewed from the front needle bed 30, the first knitting yarn 1Y is the sinker 5C. and the second knitting yarn 2Y. Therefore, the position where the first knitting yarn 1Y and the second knitting yarn 2Y are intertwined when the first yarn feeder 1 is moved to the added yarn feeding position P2 is the last stitch 4 of the standard plating knitting. It is easy to get out of a location close to That is, when viewed from the front needle bed 30 side, it is easy to perform the switching operation in a state where the sand feeding hole at the injection supply position P1 is inward than the sand feeding hole at the supplementary yarn supply position P2.

≪Auxiliary action A≫

Auxiliary operation A, as shown by the U-shaped arrow on the left side of FIG. 1(B), the first sand feeder 1 moves to a position beyond the additive supply position P2 (hereinafter, the excess position P20). say action. The excess position P20 is a position on the opposite side to the scanning supply position P1 with the additive supply position P2 interposed therebetween. After moving to the excess position P20, the first sand feeding hole 1 moves to the additive supply position P2. When the first yarn feeder 1 is disposed at the excess position P20, the angle α between the first knitting yarn 1Y (super yarn) and the horizontal line extending from the first yarn feeder 1 to the sinker 5C is get bigger Therefore, the angle γ formed between the first knitting yarn 1Y and the second knitting yarn 2Y (scan) is increased, and the place where the first knitting yarn 1Y and the second knitting yarn 2Y come into contact with the sinker 5C In the vicinity of , the position where the first knitting yarn 1Y and the second knitting yarn 2Y are entangled tends to deviate toward the knitting needle 3B side. Accordingly, the upper and lower positions of the first knitting yarn 1Y and the second knitting yarn 2Y are easily exchanged at a position close to the last stitch of the standard plating knitting.

In the auxiliary operation A, it is preferable that the first sand feeding hole 1 moves upward. More specifically, it is preferable that the first feeding hole 1 gradually rises in a direction away from the needle bed gap as it goes toward the excess position P20. As the first yarn feeder 1 rises, the angle α becomes larger, so that the exchange of the upper and lower positions of the first knitting yarn 1Y and the second knitting yarn 2Y is closer to the last stitch of the standard plating knitting easier to do in When the first sand feeding hole 1 moves from the excess position P20 to the supplementary yarn feeding position P2, the first sand feeding hole 1 gradually moves toward the needle bed gap as it goes toward the supplementary yarn feeding position P2. It is preferable to descend. In order to make the 1st sand feeder 1 move up and down, it is good to use the structure in which the 1st carrier 11 can rock|fluctuate in an up-down direction. For example, the configuration of Japanese Patent No. 4125319 (Patent 1) in which a guide cam for changing the height of the carrier is provided above the carrier, or around an axis parallel to a yarn guide rail and the configuration of Japanese Patent Application Laid-Open No. 2012-524842 (Patent No. 2), which allows the vertical position of the carrier to be adjusted by a control element capable of rotationally driving the . Although the structure of these publications is a structure which adjusts the height of a carrier in two steps, the structure which can adjust the height of a carrier continuously may be sufficient. For example, it is mentioned that the cam surface (symbol 39 of Publication 1) in the guide cam of Publication 1 is an inclined surface that becomes higher toward the outside. In this case, the height of the carrier can be changed by changing the position at which the carrier stops on the inclined surface of the guide cam. Also, for example, in the configuration of Publication 2, the height of the carrier can be changed by adjusting the rotation angle of the control element. In the configuration in which the first sand feeding hole 1 rises toward the excess position P20, the distance from the supplementary yarn supply position P2 to the excess position P20 can be shorter than in the non-rising configuration.

≪Auxiliary motion B≫

In the auxiliary operation B, as indicated by the U-shaped arrow on the right side of FIG. 1(B), the second sand feeding port 2 moves to a position beyond the injection supply position P1 (hereinafter, the excess position P10). say action. The excess position P10 is a position on the opposite side to the additive supply position P2 with the scanning supply position P1 interposed therebetween. The second sand feeding port 2 moves to the injection supply position P1 after moving to the excess position P10. When the second yarn feeder 2 is disposed at the excess position P10, the angle β between the second knitting yarn 2Y (scan) extending from the second yarn feeder 2 to the sinker 5C and the horizontal line is gets smaller Therefore, the angle γ formed between the first knitting yarn 1Y (super yarn) and the second knitting yarn 2Y is increased, so that the first knitting yarn 1Y and the second knitting yarn 2Y contact the sinker 5C. In the vicinity of , the position where the first knitting yarn 1Y and the second knitting yarn 2Y are entangled tends to deviate toward the knitting needle 3B side. Accordingly, the upper and lower positions of the first knitting yarn 1Y and the second knitting yarn 2Y are easily exchanged at a position close to the last stitch of the standard plating knitting.

In Fig. 1(B), both the auxiliary operation A and the auxiliary operation B are implemented. Unlike this example, only the auxiliary operation A may be performed, and only the auxiliary operation B may be performed. In the case where only the auxiliary operation A is performed, the angle γ formed between the first knitting yarn 1Y and the second knitting yarn 2Y tends to be larger than when only the auxiliary operation B is performed. Here, the excess positions P10 and P20 change to appropriate positions according to the knitting conditions such as the material of the knitting yarn and the knitting speed.

In the knitting method of the knitted fabric according to the first embodiment, the position of the first yarn feeder 1 and the position of the first yarn feeder 1 and the second yarn feeder 1 are moved in opposite directions by moving the first and second yarn feeders 1 and 2, which are configured to be movable. By exchanging the position of the secondary yarn feeder 2, the upper and lower positions of the first knitting yarn 1Y and the second knitting yarn 2Y are exchanged. That is, in the knitting method of the knitted fabric of this example, the upper and lower positions of both knitting yarns 1Y and 2Y are exchanged by means different from those in Patent Documents 1 to 3.

By moving the first feeding sand dunes 1 and the second feeding sand dunes 2 in opposite directions to each other, standard plating knitting and reverse plating knitting can be continuously performed by one cam system 6 . Also, even when the standard plating knitting and the reverse plating knitting are knitted by one cam system 6, the first knitting yarn 1Y and the second knitting yarn 2Y can be easily exchanged at a desired position in the stitch row 40. , it is difficult to cause color mixing in the knitted fabric. As a specific example, a photograph of a knitted fabric obtained by the knitting method of a knitted fabric according to the first embodiment is shown in FIG. The dark gray part on the left from the center in Fig. 2 is a part obtained by standard plating knitting in which the first knitting yarn 1Y is scanned. The light gray part on the right from the center is a part obtained by inversion plating knitting in which the second knitting yarn 2Y is scanned. As shown in Fig. 2, the first knitting yarn 1Y and the second knitting yarn 2Y are neatly replaced at the central position in the knitting width direction of the knitted fabric. In addition, there is no color mixing in the portion obtained by the reverse plating knitting, and the appearance of the knitted fabric is good.

In contrast to this, a photograph of the knitted fabric without the auxiliary operations A and B shown in FIG. 1 is shown in FIG. The method of viewing FIG. 3 is the same as that of FIG. 2 . As shown in Fig. 3, the first knitting yarn 1Y and the second knitting yarn 2Y are generally replaced at the central position in the knitting width direction of the knitted fabric. However, color mixing occurs in a part of the portion obtained by the reverse plating knitting. The occurrence of color mixing is related to that the first yarn feeder 1 for feeding the first knitting yarn 1Y is located outside the second yarn feeder 2 when viewed from the front needle bed 30 . When switching from the reverse plating knitting to the standard plating knitting, the second feeding yarn opening 2 that feeds the second knitting yarn 2Y, which is the injection, is larger than the first feeding yarn opening 1 when viewed from the front needle bed 30. Because it is inside, color mixing is difficult to occur.

<Embodiment 2>

In Embodiment 2, the switching between the standard plating knitting and the reverse plating knitting using a flat knitting machine having a first yarn feeding hole 1 and a second yarn feeding hole 2 configured to be able to swing in the vertical direction is shown in Fig. 4 will be explained based on In Fig. 4, the needle bed is omitted.

Fig. 4(A) shows a standard plating knitting in which the first yarn feeder 1 is disposed at the injection supply position P1 and the second yarn feeder hole 2 is disposed at the additive feed position P2. In the configuration in which the first sand feeder 1 and the second sand feeder 2 swing in the vertical direction, the position separated by the height H1 in the height direction from the specific position of the carriage 7 is the injection supply position P1, The position separated by the height H2 is the additive supply position P2. The height H2 is higher than the height H1. Since the second feeding yarn opening 2 is disposed at a higher position than the first feeding yarn opening 1, the angle β of the second knitting yarn 2Y fed from the second feeding yarn opening 2 is It is larger than the angle α of the first knitting yarn 1Y fed from (1). Accordingly, the first knitting yarn 1Y is the scanning and the second knitting yarn 2Y is the additive yarn.

In the case of switching from the state of Fig. 4(A) to the reverse plating knitting, as shown in Fig. 4(B), the first yarn feeding hole 1 is moved to the supplementary yarn feeding position P2, and the second yarn feeding hole is moved. (2) is moved to the injection supply position (P1). It is preferable that the first yarn feeding hole 1 is moved to the supplementary yarn feeding position P2 after performing the auxiliary operation A of moving it to the excessive position P20 higher than the supplementary yarn feeding position P2. In addition, it is preferable that the second sand feeding port 2 is moved to the injection supply position P1 after the auxiliary operation B of moving it to the excess position P10 lower than the injection supply position P1.

In order to configure the first sand feeding opening 1 (second feeding opening 2) to be able to swing in the vertical direction, a swinging mechanism may be mounted on the first carrier 11 (second carrier 12). The rocking mechanism is a mechanism for rocking the first carrier 11 (the second carrier 12) in the height direction.

<Embodiment 3>

In Embodiment 3, the switching between the standard plating knitting machine and the reverse plating knitting machine using a flat knitting machine having a rotary carrier 13 having a first yarn feeder 1 and a second yarn feeder 2 is performed based on FIG. 5 . to explain

Fig. 5(A) shows a standard plating knitting in which the first yarn feeding mouth 1 is disposed at the injection supply position P1 and the second yarn feeding mouth 2 is disposed at the additive yarn feeding position P2. In the case of switching from the state of Fig. 5(A) to the reverse plating knitting, the rotary carrier 13 is rotated by 180 DEG as shown in Fig. 5(B). As a result, the first sand feeding hole 1 is moved to the additive feeding position P2, and the second sand feeding opening 2 is moved to the injection feeding position P1.

In order to configure the rotary carrier 13 so that it can be rotated, a rotary mechanism may be mounted on the carrier to which the rotary carrier 13 is attached. The rotating mechanism is a mechanism for rotating the rotary carrier 13 with respect to the carrier.

When the rotary carrier 13 is configured to be self-propelled, it is preferable to rotate the rotary carrier 13 and instantaneously move the rotary carrier 13 in the opposite direction to the traveling direction of the carriage 7 . . The first knitting yarn 1 is moved to the excess position P20 and the angle α of the first knitting yarn 1Y is increased, so that the first knitting yarn 1Y and the second knitting yarn 2Y are easily separated. .

<Embodiment 4>

In the fourth embodiment, a method for knitting a knitted fabric in which the upper and lower positions of the first knitting yarn 1Y and the second knitting yarn 2Y can be easily exchanged by means different from those of the first to third embodiments will be described. Of course, the knitting method of the knitted fabric of this example can be implemented in combination with the first to third embodiments. In the description of this example, reference is made to Fig. 1(A).

According to the study of the present inventors, when the moving speed of the carriage 7 becomes high (for example, 1.0 m/s or more), the first feeding hole 1 as viewed from the front needle bed 30 and It was found that the degree of difficulty with respect to the replacement of the upper and lower positions of both knitting yarns 1Y and 2Y due to the front-back relationship of the second feed yarn dune 2 was different. In Fig. 1(A), when viewed from the front needle bed 30 side, the first sand feeding hole 1 at the injection supply position P1 is inside the second sand feeding hole 2 at the additive feeding position P2. In the case where the switching operation is performed in the state of , a phenomenon occurs that the upper and lower positions of the first knitting yarn 1Y and the second knitting yarn 2Y are difficult to be replaced. As a countermeasure, in this embodiment, the position where the 1st sand feeding opening 1 and the 2nd sand feeding opening 2 intersect is made into the position on the side of the additive feeding position P2 rather than the intermediate position CP. By doing so, the angle α of the first knitting yarn 1Y and the angle β of the second knitting yarn 2Y at the intersection of the first knitting yarn 1 and the second feeding yarn 2 are intermediate. In the position CP, it becomes larger than the case where both the sand feeding openings 1 and 2 intersect. As a result, even if the moving speed of the carriage 7 is high, the upper and lower positions of the first knitting yarn 1Y and the second knitting yarn 2Y are easily interchanged.

As a specific configuration in which the position where both feeders 1 and 2 intersect is set to the position on the side of the supplementary yarn supply position P2, the yarn feeder at the injection supply position P1 is higher than the yarn feeder at the supplementary yarn feed position P2. An example is to operate it with a fast timing. In Fig. 1(A), the first sand feeding hole 1 is moved at a timing earlier than that of the second sand feeding hole 2. In addition, when viewed from the moving carriage 7, the moving speed of the yarn feeder moving from the injection supply position P1 to the additive supply position P2 is changed from the additive supply position P2 to the injection supply position P1. An example is to make it faster than the moving speed of the moving rapids. In Fig. 1(A), the moving speed of the first sand feeding hole 1 is made faster than that of the second feeding sand opening 2. As shown in Figs.

<Embodiment 5>

In the fifth embodiment, a method for knitting a knitted fabric in which the upper and lower positions of the first knitting yarn 1Y and the second knitting yarn 2Y can be easily exchanged by means different from those of the first to fourth embodiments will be described. Of course, the knitting method of the knitted fabric of this example can be implemented in combination with the first to fourth embodiments. In the description of this example, reference is made to Fig. 1(A).

In the switching operation, it is preferable to save time for the replacement so that the upper and lower positions of the first knitting yarn 1Y and the second knitting yarn 2Y can be replaced more reliably. As a means for this, in the present embodiment, the operation of the knitting needle 3C for knitting the first stitch after the end of the switching operation is temporarily stopped in at least a part of the period from the start to the end of the switching operation. That is, the time period during which the knitting needle 3C of Fig. 1A does not move below the ground is set. Since the operation of the knitting needle 3C is stopped, the certainty of replacement of the upper and lower positions of both knitting yarns 1Y and 2Y is increased.

As a configuration for temporarily stopping the operation of the knitting needle 3C, it is possible to change the shape of some cams provided in the cam system 6 . Specifically, in a cam having an inclined surface for retracting the knitting needle 3C from the needle bed gap, the carriage 7 moves in the middle of the inclined surface acting on a butt that controls the movement of the knitting needle when knitting. and forming a flat portion parallel to the direction. As the cam provided with the above-mentioned inclined surface, for example, a guide cam (reference numeral 37 in the publication), a rising cam (reference numeral 12 in the publication) and a knitting cam as shown in Fig. 1 of Japanese Patent Application Publication No. 2-10262 publication. symbols 13 and 14) of According to this configuration, the operation of the knitting needle 3C can be stopped without stopping the carriage 7 .

<Reference example>

As a knitting method of a knitted fabric related to the method of knitting a knitted fabric of the present invention, the following structures are mentioned.

A flat knitting machine having a carriage mounted with at least one cam system for operating a knitting needle, a first feeding yarn for feeding a first knitting yarn to the knitting needle, and a second feeding yarn for feeding a second knitting yarn to the knitting needle is used. So,

Viewed from the carriage, when defining the injection supply position to which the injection is supplied and the additive supply position to which the additive is supplied,

a standard plating knitting in which the first sand feeding hole is disposed at the injection supply position, and the second sand feeding hole is disposed at the supplementary yarn supply position;

Inverted plating knitting in which the second sand feeding hole is disposed at the injection supply position, and the first sand feeding hole is disposed at the additive feeding position

A method for knitting a knitted fabric to be switched, the method comprising:

performing a switching operation of switching the standard plated knitting and the reverse plated knitting knitting at least once while knitting the stitch rows arranged in the knitting width direction by one of the at least one cam system;

When the switching operation is performed, among the first and second sand feeding openings, the sand feeding port at the injection supply position is moved toward the supplementary yarn supply position, and the sand feeding port at the supplementary yarn supply position is moved to the above-mentioned A method of knitting a knitted fabric in which it is moved toward an injection supply position.

In the configuration according to the reference example, the moving direction of the carriage may be changed when knitting stitch rows arranged in the knitting width direction. For example, when the standard plating knitting and the reverse plating knitting are switched every single stitch, there is a fear that the positions of the first and second feed yarns may not be replaced in time. In such a case, it is sufficient to move the carriage to the opposite side to the advancing direction to increase the replacement time of the first knitting yarn and the second knitting yarn. Also in this case, it is preferable to perform at least one of the auxiliary operation A and the auxiliary operation B.

1 : 1st grade yarn 1Y : 1st knitting yarn
2 : 2nd grade yarn 2Y : 2nd knitting yarn
3A, 3B, 3C: knitting needle 3F: hook 30: needle bed
4: stitch 4S: sinker loop 40: stitch row
5A, 5B, 5C: sinker
6: cam system
7: carriage
11: first carrier 12: second carrier 13: rotary carrier
P1 : Injection supply position P2 : Supplementary injection supply position
P10, P20 : Excess position
CP : middle position

Claims (7)

A carriage for mounting at least one cam system for operating a knitting needle, a first knitting yarn feeder for feeding a first knitting yarn to the knitting needle, and a second knitting yarn for feeding the second knitting yarn to the knitting needle Using a flat knitting machine equipped with a second-grade sand dune,
Viewed from the carriage, when defining a scanning supply position where injection is supplied and a supplementary yarn supply position where supplemental yarn is supplied,
A standard plating knitting in which the first feeding sand hole is disposed at the injection supply position, and the second feeding sand hole is disposed at the supplementary yarn feeding position;
Reverse plating knitting, in which the second feeding hole is disposed at the injection supply position, and the first feeding sand hole is disposed at the supplementary yarn supply position
A method for knitting a knitted fabric to be switched, the method comprising:
The standard plating knitting and the reverse plating knitting are moved while the carriage is moved only in one direction, and stitch rows arranged in the knitting width direction are knitted by one of the at least one cam system. performing at least one switching operation to switch
When the switching operation is performed, among the first and second sand feeding openings, the sand feeding port at the injection supply position is moved toward the supplementary yarn supply position, and the sand feeding port at the supplementary yarn supply position is moved to the above-mentioned A method of knitting a knitted fabric in which it is moved toward an injection supply position.
According to claim 1,
In the switching operation, after passing at least one of the first and second sand feeders through the final position where the at least one feeder is finally arranged, inverted to make the final A method of knitting a knitted fabric arranged at a position.
3. The method of claim 2,
A method for knitting a knitted fabric, wherein the yarn feeding port, which moves from the scanning supply position to the added yarn supply position, is moved to a position beyond the added yarn supply position, and then placed in the added yarn supply position.
4. The method of claim 2 or 3,
A method for knitting a knitted fabric, wherein the yarn feeding port, which moves from the added yarn supply position to the scanning supply position, is moved to a position beyond the scanning supply position and then placed in the scanning supply position.
5. The method according to any one of claims 1 to 4,
In the switching operation, a position where the sand feeding port moving from the injection supply position to the additive supply position and the sand supply opening moving from the additive supply position to the injection supply position intersect is defined as the position where the injection supply position and the additive supply position intersect. A method of knitting a knitted fabric in which the position is closer to the thread feeding position than the intermediate position of the position.
6. The method according to any one of claims 1 to 5,
A method of knitting a knitted fabric for temporarily stopping an operation of a knitting needle for knitting a first stitch after the end of the switching operation during a period from the start to the end of the switching operation.
7. The method according to any one of claims 1 to 6,
The flat knitting machine is provided with a self-propelled first carrier and a second carrier moving independently of the carriage along the moving direction of the carriage,
The first carrier is provided with the first feeding port,
The second carrier is provided with the second feeding port,
In the switching operation, the method of knitting a knitted fabric in which the first carrier and the second carrier are individually moved.

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