KR101470668B1 - Stripe pattern knitting device in feed changer, and method therefor - Google Patents

Abstract

SUMMARY OF THE INVENTION The present invention overcomes the drawbacks of the prior art in a technique of manufacturing a stripe pattern letter using a knitting yarn (color yarn) over the number of times of sudden fingers arranged in the yarn feeding conversion device.

The present invention provides a knitting method of a stripe pattern knitting a course with a second feeder having a first feeder having a first yarn switching device and a second yarn switching device. In the first feeder, the weft needle is applied. When a yarn is newly supplied to the knitting needle from the first yarn switching apparatus, the yarn captured by the trapper keeps the angle of incidence on the yarn carrier constant. Further, after the new knitting yarn is fed from the first and second yarn switching devices to the knitting yarn to form a loop, the previous knitting yarn from which the yarn feeding is stopped is held and cut at the same position.

Description

STRIPE PATTERN KNITTING DEVICE IN FEED CHANGER AND METHOD THEREFOR [0002]

The present invention relates to a device for knitting a striped pattern in a circular knitting machine equipped with a yarn feeding switching device capable of knitting a stripe pattern and a method thereof.

In order to knit a stripe pattern by a circular knitting machine, for example, as shown in Patent Document 1 below, a yarn optionally arbitrarily supplied by a yarn feeding device equipped in a circular knitting machine is supplied to a knitting needle, Knitted fabric) is generally knitted. In the following patent document 1, it is not possible to switch a yarn number more than the number of fingers disposed in one yarn switching device, but this is possible in the following Patent Document 2.

Patent Document 1: JP-A 2005-42260

Patent Document 2: JP-A 2006-16747

In the circular knitting machine described in Patent Document 2, the engaging member 81 is assigned to a stripe-shaped accessory mechanism, and the trapper has an elastic fastening hole 81a for automatically tightening the yarn, And is fixedly disposed behind the guide. These members are made of spring wire.

Therefore, when the fabric starts to be squeezed or a hole is formed in the fabric, the ends of the yarn or the fabric are entangled with these members, the fabric is not smoothly squeezed and these members are damaged, There is a possibility of occurrence.

Further, at the time of operating the knitting machine, if a protrusion such as the above-mentioned wire is attached to the tip of the traper that becomes the rotating body, there is a possibility that the operator may be injured to the body during the operation.

An object of the present invention is to produce a letter of stripe pattern using a knitting yarn (colored yarn) having a number of times or more of the number of jumping fingers arranged in the yarn feeding conversion device. In this case, it is an object of the present invention to ensure the safety of the operator by eliminating protrusions while preventing the breakage of the knitting machine during knitting by feeding the knitting yarn reliably to the yarn carrier at the time of switching.

The present invention relates to a circular knitting machine having a yarn feeding switching device for switching at least two yarns, comprising: a first yarn feeding conversion device provided with a plurality of yarn feeding fingers which are selectively moved and provided on a first feeder; A yarn catcher for holding a previous knitting yarn in which a new knitting yarn is fed from the first and second yarn feeding switching devices to a knitting needle to form a loop, And a yarn carrier for cutting the knitting yarn, a yarn carrier provided corresponding to the second feeder and fed to the knitting needle, a yarn carrier moving in the circumferential direction together with the knitting rotation, Wherein the yarn feeding finger of the first yarn feeding conversion device is a striping pattern knitting machine in a yarn breaker including a strapper, And a yarn guide member provided between the first and second yarn-feeding conversion devices and having a holding portion, the yarn guide member having a normal incidence angle with respect to the yarn carrier And the previous knitting yarn, which is a knitting yarn fed from one of the first and second yarn-feeding switching devices, is held by the yarn catcher at almost the same position, And the knitting yarn is cut by the knitting yarn.

Further, the present invention provides a circular knitting machine having a yarn feeding switching device for switching at least two knitting yarns, wherein a course is divided into a first feeder having a first yarn switching device and a second feeder having a second yarn switching device A knitting method of knitting a stripe pattern, comprising: a step of performing a weft needle selection in the first feeder;

When the knitting yarn is newly supplied to the knitting needle from the first yarn switching apparatus, the knitting yarn captured by the trapper is guided to the yarn carrier by a yarn guide member provided between the first and second yarn guide diverters, The first knitting yarn is fed from the first and second yarn feeding switching devices to the knitting needle so that the knitting yarn is looped, And a step of holding and cutting at almost the same position.

Effects of the Invention

According to the present invention, in a circular knitting machine provided with a yarn feeding conversion device, when it is desired to produce a letter using a knitting yarn (color yarn) having a number of yarn fingers or more arranged in the yarn feeding switching device, It is possible to manufacture a letter of stripe pattern. Further, at this time, the knitting yarn can be surely fed to the yarn carrier at the time of switching, thereby preventing breakdown of the knitting machine during knitting, and eliminating protrusions, thereby securing the safety of the operator.

Further, it is possible to perform only the partial change of the yarn feeding conversion device while using the circular knitting machine provided with the conventional yarn feeding switching device, and there is no need to newly install a special device.

BEST MODE FOR CARRYING OUT THE INVENTION

For example, Japanese Unexamined Patent Application Publication No. 2005-42260 can be used as the yarn feeding switching device. This double yarn switching device can use both a double knit circular knitting machine and a single knit circular knitting machine.

In the present invention, one course is knitted by the first feeder and the second feeder. Therefore, for example, by using a yarn feeding switch provided with three yarn fingers, a multicolor stripe pattern can be knitted with six knitting yarns.

In the present invention, the first feeder is subjected to the weft needle touch. Therefore, the yarn carrier at this portion is removed.

In the present invention, a yarn guide member is provided between a first yarn feeding conversion device provided in a first feeder and a second yarn feeding conversion device provided in a second feeder. The yarn guide member is preferably provided with a guide surface and a holding portion. The guide surface helps the yarn picked up by the trapper moving in synchronism with the rotation of the knitting machine to rise when the knitting yarn is newly fed from the first yarn switching device to the knitting needle. Further, the holding section maintains the angle at which the knitting yarn enters the yarn carrier at a constant level. For the same purpose, it is preferable that the trough has a projection at the lower end.

In the present invention, a yarn catcher for holding a previous knitting yarn in which yarn feeding is stopped after forming a loop by feeding a new knitting yarn to the knitting needle from the first and second yarn switching devices, and a yarn cutter for cutting the knitting yarn. The projection positions of the switch cams for opening and closing them are set at different positions in the first yarn feeding conversion device and the second yarn feeding conversion device. In addition, two types of cutter cams, that is, a cutter cam for the first yarn feeding conversion device and a cutter cam for the second yarn feeding switching device are provided corresponding to the respective projection positions of the switch cam.

The first cutter cam for the first yarn feeding conversion device and the second yarn feeding switching device for cutting and holding the previous knitting yarn in which the yarn feeding is stopped after the new knitting yarn is fed to the knitting needle from the first and second yarn- The position of the second cutter cam for the second yarn double conversion device is set.

For this purpose, it is preferable that the distance between the first cutter cam and the second cutter cam be an interval of each feeder, and the lower surface of the cutter cam be an inclination angle corresponding to the inclination of the switch cam.

In the present invention, the knitting yarn is not squeezed in the first feeder at the time of precise weaving. Therefore, the yarn fed from the first yarn feeding switching device of the first feeder is fed to the knitting needle which is knitted or tucked on the second feeder. Therefore, after the new knitting yarn passes the stitch point of the second feeder and the new knitting yarn is overlapped with the previous knitting yarn at the switching portion of the letter, the previous knitting yarn supplied from the first yarn feeding switching device, It is preferable that the position of the first cutter cam is set to be delayed so as to be held by the catcher and cut by the moving blade.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a sectional view showing a knitting section of a double knit circular knitting machine used in the present invention.

Fig. 2 is a top enlarged view of the yarn feeding conversion device used in the present invention. Fig.

3 is a sectional view of the yarn feeding switching device used in the present invention.

4 is a sectional view showing a knitting section of a single knit circular knitting machine used in the present invention.

5 is a view showing a switching state of a knitting yarn in a knitting section in which yarn guide members and a yarn guide member used in the present invention are arranged.

6 is a view showing a knitting section (a) of the present invention and a conventional knitting section (b).

Example 1

<Outline of knitting section>

1 is a cross-sectional view showing a main part of a knitting section of a double knitting machine, and a knitting section 31 is provided above a bed 30 supported by a plurality of legs (not shown). In the figure, reference numeral 33 denotes a needle cylinder. A cylinder needle (not shown) slidable in the vertical direction is accommodated in an upper portion of a needle groove (not shown) formed on the outer periphery of the needle cylinder 33. The cylinder needle reciprocates vertically by a cam (not shown) accommodated in the cam holder 34.

1 is a double knit circular knitting machine, it further comprises a needle dial 35 and a dial cam holder 36. As shown in Fig. A dial needle (not shown) is slidably received in the horizontal direction along the needle groove formed on the upper surface of the needle dial 35. The dial needles are horizontally reciprocated by a cam (not shown) accommodated in the dial cam holder 36. A yarn carrier 37 is provided on the dial cam holder 36, and the yarn carrier 37 is fed to the knitting needle.

At the lower side of the needle cylinder 33, there is a drive gear 38 mounted integrally therewith, and rotates at the same speed together with the needle cylinder 33 when driven by a drive source arranged on the knitting machine.

Above the dial cam holder 36, a yarn feeding switching device 40 is provided.

In the yarn feeding switching device (40), a plurality of yarn feeding fingers for guiding a plurality of respective knitting yarns are arranged. A two-step operation is performed in which the yarn fingers are moved downward and then backwardly upwardly, and the yarn is selectively moved between a lower position, i.e., a &quot; switching position &quot; and an upper position, do.

<Configuration of the stripper device>

As the yarn feeding switching device 40, an apparatus described in Japanese Patent Application Laid-Open No. 2005-42260 is basically used except for the improved portion of the present invention. 3, this stripper apparatus will be schematically described. A detailed operation description is omitted here, but is described in [0031] to [0059] of the above publication.

An actuator 1 is provided at the top of the stripper and rotates at a constant speed with a knitting machine. The actuator 1 is a piezoelectric element having a number of stages corresponding to the number of yarns used in one feeding opening and a total number of stages of a special stage for setting all yarns in a non- (1-1) using a peg (peg).

The selector unit 21 operates in response to the movement of the peg 1-1. The selector unit 21 includes a select lever 21-1, a rocking bar 21-2, a slider 21-3, a switch plate 21-4, a switch cam 21 -5).

The select lever 21-1 is pushed in when the peg 1-1 is moved according to a signal to which the peg 1-1 is suddenly delivered or not.

The locking bar 21-2 is located in the same space as the select lever 21-1 and is pushed by the select lever 21-1 and rocks around the engaging portion 21-2b.

The slider 21-3 is located in the same space as the locking bar 21-2 and fitted into the locking bar 21-2 at the engaging portion 21-2b so as to be engaged with the locking bar 21-2 Move. Since the slider 21-3 has the long hole 21-3a and the pin 21-3b is fixed to the long hole, it is possible to horizontally move by the length of the long hole.

The switch plate 21-4 is located in the same space as the slider 21-3 and is engaged with the slider 21-3 at the engaging portion 21-4a and moves together with the slider 21-3.

The switch cam 21-5 is lifted by the switch plate 21-4 when one of the switch plates 21-4 is moved to the delivery position.

Four cams acting on the selector unit 21 are provided on the rotary ring 23 and all rotate at the constant speed with the knitting machine. The first cam 2 and the second cam 3 are engaged with the butt 21-2a at the left end of the locking bar 21-2 and the butt 21-2b at the right end, 21-2) to the yarn feeding position or the non-feeding position. The third cam 4 (hereinafter referred to as "cutter cam 4") pushes the lifted switch cam 21-5. A fourth cam (not shown) pushes the butt 21-2a at the left end of the locking bar 21-2 downward.

The switch lever cam 5, the first link plate 6 connected to the switch lever cam 5 and the second link plate 7 connected to the first link plate 6 are connected to the cutter cam The third cam 4 is pushed down through the switch cam 21-5 and the switch plate 21-4.

The switch lever 8 is connected to the first link plate 6 and the second link plate 7. And a third link plate 9 is connected to the switch lever 8. The third link plate 9 moves in the direction opposite to the second link plate 7 because the switch lever 8 is rotatable about the fulcrum 8-1. The long hole 24-1 formed in the housing plate 24 serves as a guide for rotation.

Reference numeral 10 denotes a spring for returning the part moved by the cutter cam (third cam) 4 to its original position.

On the other hand, in the space other than the select lever 21-1 corresponding to the special one-stage peg 1-1 that puts all the yarns in the non-feeding state, And is engaged with the slider 21-3 at the engaging portion 11-1 so as to rotate and reciprocate together with the slider 21-3. The fourth link plate 11 is rotatable around the point 11-2.

A fifth link plate 12 which is engaged with the fourth link plate 11 at the engaging portion 11-3 and reciprocates in the rotational direction and a fifth link plate 12 fitted at the engaging portion 12-2 with the fifth link plate 12 And a sixth link plate 13 that reciprocates in the rotational direction. The fifth link plate 12 is rotatable about the point 12-1.

And the finger unit 14 is joined to the sixth link plate 13. The finger unit 14 includes a fixed blade 14-1 for cutting the yarn fed, a yarn catcher 14-3 for holding the end of the yarn, and a yarn held in contact with the fixed blade 14-1 A moving blade 14-2 for cutting and a case 14-4 for holding the yarn catcher 14-3 and the moving blade 14-2 for reciprocating opening and closing movement.

The first pin 19 is joined to the tip end of the second link plate 7 and the protrusion 14-4a of the case 14-4 is pushed down so that the yarn catcher 14 -3), and the moving blade 14-2 is closed to hold and cut the yarn. The second pin 20 is joined to the tip end of the third link plate 9 so that the protruding portion 14-4b of the case 14-4 is pulled up and the yarn catcher 14 -3), and the moving blade 14-2 is opened to place the yarn held.

As other components, there are the trapper 15 and the yarn guide member 16 shown in Fig. In the present invention, it is preferable to provide the projecting portion 15-1 at the tip of the trapper.

The trapper 15 moves in the circumferential direction together with the rotation of the knitting machine, captures the yarn at the yarn feeding position, and reliably feeds the yarn to the knitting needle.

The yarn guide member (16) divides the plurality of yarns and stabilizes the position of the yarn. The yarn guide member 16 used in the present embodiment is in the form of an elongated plate, and has irregularities toward the outside of the knitting machine. As shown in Fig. 5, the concavity and convexity has a guide surface 16-1 made up of an ascending slope part and a vertical rising part, and a holding part 16-2 which is a concave part formed thereon.

&Lt; Switching Apparatus and Method of the Present Invention &

6 (b) shows the sudden stop state in the conventional switching method. In this drawing, a yarn feeding switching device having three yarn feeding fingers 14 is provided on the first and second feeders F1 and F2. On the other hand, FIG. 6 (a) shows a sudden change in the switching method according to the present invention. The yarn feeding switching device is provided in the first and second feeders F1 and F2 as in the conventional case. However, a yarn guide member 16 is provided between the first yarn switching apparatus 40-1 and the second yarn switching apparatus 40-2, and the yarn carrier of the first feeder is removed, Which is different from the conventional method.

6 (a), the knitting yarn is not squeezed in the first feeder F1 at the time of preconditioning the welt, and the yarn fed from the first yarn feeding switching device 40-1 is fed to the second feeder F2 . Therefore, when the newly supplied knitting yarn reaches the position A, the switching timing is too fast at the normal position where the cutter operates, and satisfactory switching is not performed. When the newly supplied knitting yarn reaches the B position, the conversion should be performed.

The opening and closing movements of the yarn cutters 14-1 and 14-2 and the yarn catcher 14-3 are caused by the action of the switch cam 21-5 and the cutter cam 4. [ In the present invention, the positions of the projections of the switch cam 21-5 for opening and closing them are set at different positions in the first yarn double conversion device 40-1 and the second double yarn switching over device 40-2. Two kinds of cutter cams 4, that is, the cutter cams 4-1 for the first yarn double conversion device 40-1 and the second double yarn switching 4-1 corresponding to the respective projection positions of the switch cams 21-5, And a cutter cam 4-2 for the apparatus 40-2 is provided. In the present invention, the arrangement of the two kinds of switch cams 21-5a and 21-5b and the two kinds of cutter cams 4-1 and 4-2 is important.

As shown in Figs. 2A and 2B, the first switch cam 21-5a and the second switch cam 21-5b are connected to the first and second yarn switching diodes 40-1 and 40 -2).

2 (d) and 2 (e) are views seen from the direction of the arrows in FIGS. 2 (a) and 2 (c), respectively, and the cutter cams 4-1 and 4-2 and the standard cutter cam 4 Respectively. The arrows (d) and (e) in FIG. 2 represent the rotational direction of the circular knitting machine. The interval between the first cutter cam 4-1 and the second cutter cam 4-2 in Fig. 2 (a) is the interval between the respective feeders, and between the AB of Fig. 6 (a) ), And is mounted on the knitting machine so as to be adjustable. The lower surfaces of the cutter cams 4-1 and 4-2 have inclined angles corresponding to the inclination of the switch cams 21-5a and 21-5b.

Thus, after the new knitting yarn is formed in the loop on the second feeder F2 (after the new yarn and the previous yarn are overlapped in the switching portion), the yarn is fed into the first and second yarn double conversion devices 40-1 and 40-2 The knitting yarn fed from either one, that is, the previous knitting yarn, is also held and cut at the position B in Fig. 6 (a).

At this time, the yarn must be conveyed by the trapper 15 to the deepest portion of the yarn carrier groove, but the yarn of the first feeder F1 is shallower than the yarn carrier 37 of the second feeder F2 , It is difficult to reach the deepest place. In the present invention, this is solved by changing the shape of the trapper 15 and the yarn guide member 16 as described below.

Fig. 5A shows the switching state of the knitting yarn fed to the yarn carrier 37 from the first yarn double conversion device 40-1. When the yarn feeding finger 14 of the yarn feeding switching device which is selectively moved is moved to the yarn feeding position where yarn feeding is performed with respect to the knitting needle (that is, after the yarn feeding fingers 14 are moved from the "normal position" One end of the traper 15 rotating at the same speed as the yarn catcher 14-3 catches the knitting yarn held by the yarn catcher 14-3. The yarn yarn NY newly picked up by the trapper 15 is disposed between the first yarn switching diverter 40-1 and the second yarn switching diverter 40-2 and is wound around the yarn guide member 16, As shown in FIG.

5 (b), as the traper 15 moves, the knitting yarn is fed to the yarn guide member 16 at an intermediate point between the yarn feeding switching device and the yarn carrier 37, And reaches the holding portion 16-2 having a concave shape. At this time, the end of the knitting yarn NY captured by the leading end projecting portion 15-1 of the trailer 15 is guided to the yarn carrier 37, and is then captured by the hook portion of the knitting needle.

Thereafter, the end of the yarn held by the yarn catcher 14-3 is released by opening the yarn catcher 14-3. At the same time, since the knitting yarn OY thus knitted up to now is held and cut, the knitting yarn enters the opening of the yarn catcher 14-3 and moves at the constant velocity in the circumferential direction together with the knitting yarn, as shown in Fig. 2 The cutter cams 4-1 and 4-2 with the cutter cams 21-5a and 21-5b push the switch cams 21-5a and 21-5b to move to the yarn catcher 14-3 through the link members 6,7 and 8,9 The blade 14-2 is closed.

The present invention can be carried out only by partially modifying the conventional circular knitting machine, and can be returned to the conventional machine in the machine of the present invention.

6 (b), when the knitting yarn reaches the X position shown in Fig. 6 (b), the cutter cam 4 is moved to the first switch cam 21 The standard cutter cam 4 (see Fig. 2 (c)) which acts at the same timing with respect to the first switch cam 5a and the second switch cam 21-5b is arranged. It is preferable that the standard cutter cam 4 has a wide width so as to act on the projection positions of both the first switch cam 21-5a and the second switch cam 21-5b. 2 (c), the first switch cam 21-5a and the second switch cam 21-5b are shown for the sake of convenience. However, actually, the first switch device 40-1 is provided with the first switch cam (21-5a) are connected to the second switching device (40-2), and the second switch cam (21-5b) is connected to the second switching device (40-2).

Example 2

<Single knitting machine>

The stripe pattern knitting apparatus of the present invention can be mounted on a single knit machine.

Fig. 4 is a cross-sectional view showing a main part of the knitting section of the single knitting machine, and a knitting section 32A is provided above the bed 31A supported by a plurality of legs (not shown). Reference numeral 33A denotes a needle cylinder. A cylinder needle (not shown) slidable in a vertical direction is accommodated in a needle groove (not shown) formed on the outer periphery of the needle cylinder 33A.

4 is a single knitting machine, it has a sinker dial 41 and a sinker cap 42. Fig. The sinker 43 cooperating with a cylinder needle (not shown) at the time of knitting is slidable in the radial direction in the sinker dial 41 arranged in the horizontal direction. The sinker 43 is controlled by the sinker cam 44 mounted on the sinker cap 42.

The sinker cap 42 is supported by the annular sinker cap ring 45 and the sinker cap ring is supported by the intermediate ring 47 through the support 46.

On the sinker cap ring 45, a yarn carrier holder 48 for mounting a yarn carrier 37A that feeds the knitting yarn to the knitting needle is provided on the yarn carrier ring.

On the lower side of the needle cylinder 33A, there is a drive gear 38A integrally mounted with the needle cylinder. When the drive gear is driven by a drive source arranged on the knitting machine, the needle cylinder 33A and the needle cylinder 33A are rotated at the same speed .

On the upper side of the sinker cap 42, a yarn feeding switching device 40A is provided.

In the yarn feeding switching device 40A, a plurality of yarn feeding fingers 14A for guiding a plurality of knitting yarns are arranged. A double-step operation is performed in which the yarn fingers are moved downward and then moved back upward, and the yarn fingers are selectively moved between a lower position, i.e., a &quot; switching position &quot; and an upper position, To the knitting needle.

The configuration and operation of the turn signal switching apparatus 40A itself of the second embodiment are substantially the same as those of the first turn switching apparatus 40 (40-1, 40-2) of the first embodiment, and a description thereof will be omitted.

Claims (9)

A yarn knitting machine having a yarn switching device (40, 40A) for switching two or more knitting yarns, A first yarn feeding conversion device (40-1) provided with a plurality of yarn feeding fingers (14) selectively moving and provided on a first feeder (F1); A second yarn feeding conversion device (40-2) provided with a plurality of yarn feeding fingers (14) selectively moving and provided on a second feeder (F2); A yarn catcher 14-3 for holding a previous knitting yarn in which yarn feeding is stopped after forming a loop by feeding a new knitting yarn from the first and second yarn switching devices 40-1 and 40-2 to the knitting needle, Yarn cutters 14-1 and 14-2 for cutting the knitting yarn; A yarn carrier 37 provided corresponding to the second feeder F2 and fed to the knitting needle; A trapper (15) which moves in the circumferential direction together with the knitting rotation, captures the yarn at the yarn feeding position and supplies the yarn to the knitting needle, And a knitting machine for knitting a knit fabric, When the yarn fingers 14 of the first yarn double conversion device 40-1 are moved to the yarn feeding position where yarn feeding is newly performed on the knitting needle, the yarn newly fed yarn is caught by the trapper 15, And the yarn guide member 16 provided between the second yarn switching apparatuses 40-1 and 40-2 is pushed up to the normal incidence angle of the yarn carrier 37, The knitting yarn fed from any one of the first and second yarn-feeding switching devices 40-1 and 40-2 is held at the same position by the yarn catcher 14-3, 14-1, 14-2, respectively, so as to cut the knitting yarn. The yarn guide member (16) according to claim 1, characterized in that when the knitting yarn is newly fed from the first yarn feeding conversion device (40-1) to the knitting needle, the yarn guide member (16) And a guide surface (16-1) for helping the knitting yarn captured by the knitting yarn (15) to rise upward. The yarn guide member according to claim 1 or 2, wherein when yarn is newly fed from the first yarn guide switching device (40-1) to the knitting needle, the yarn guide member (16) And a holding portion (16-2) for keeping the angle of incidence of the knitting yarn captured by the yarn carrier (15) on the yarn carrier (37) constant. The yarn cutter according to claim 1 or 2, wherein the projection positions of the switch cams (21-5a, 21-5b) for opening and closing the moving blade (14-2) and the yarn catcher (14-3) The switching devices 40-1 and 40-2 are set at different positions and two kinds of cutter cams 4-1 to 4-5 are provided corresponding to the projection positions of the switch cams 21-5a and 21-5b, ) And the second cutter cam (4-2) for the second yarn feeding / switching device are provided on the second cutter cam (4-1). 5. The knitting machine according to claim 4, wherein new knitting yarns from the first and second yarn switching devices (40-1, 40-2) are fed to the knitting needle and formed in a loop, , The positions of the first cutter cam (4-1) for the first yarn double conversion device and the second cutter cam (4-2) for the second yarn feeding conversion device are set. The cutter motor according to claim 4, wherein a distance between the first cutter cam (4-1) and the second cutter cam (4-2) is an interval between the feeders, (21-5a, 21-5b) are inclined at an angle corresponding to the inclination of the stripe pattern knitting machine (21-5a, 21-5b). 3. The apparatus according to claim 1 or 2, wherein the trapper (15) has a protrusion (15-1) at the lower end thereof. A circular knitting machine having a yarn feeding switching device for switching two or more knitting yarns, comprising: a first feeder (F1) having a first yarn switching device (40-1) and a second feeder A knitting method of a stripe pattern for knitting a course with a knitting machine (F2) A step of performing a weft selection needle in the first feeder F1, When the knitting yarn is newly supplied to the knitting needle from the first yarn switching device 40-1, the knitting yarn captured by the trapper 15 is fed to the first and second yarn feeding conversion devices 40-1 and 40-2 The yarn guide member 16 being provided between the yarn carrier 37 and the yarn carrier 37 so that the yarn carrier 37 is pushed up to the normal incident angle and the incident angle to the yarn carrier 37 is kept constant, A step of holding and cutting the previous knitting yarn in which the new knitting yarn is fed from the first and second yarn switching diverters 40-1 and 40-2 to the knitting yarn and formed in a loop, The method of any one of claims 1 to 5, The knitting machine according to claim 8, wherein the knitting yarn fed from the first yarn-feeding switching device (40-1) is a knitting yarn, the new knitting yarn passes through the stitch point of the second feeder (F2) Is held by the yarn catcher (14-3) of the yarn feeding finger of the yarn feeding switching device and cut by the cutters (14-1, 14-2) after the overlapping of the knitting yarns Way.

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