JPH0813295A - Yarn guide in weft knitting machine - Google Patents

Abstract

PURPOSE:To provide the subject yarn guide capable of operating a yarn carriage body with relatively weak pushing force. CONSTITUTION:A sliding plate 11 is furnished on a yarn carriage body 3 firmly fitting stopper pins 12 left and right. A swinging plate is axially supported on both ends of the sliding plate 11. This swinging plate has such a cam groove 15 that the action site on one side makes frequent appearances on the entrainment bolt's action region and the stopper pins 12 are engaged therewith on the other side. The cam groove 15 has a 1st engagement part 15b where a 1st groove 15a is engaged with the stopper pin 12 at the inner end and a 2nd engagement part 15d where a 2nd groove 15c is engaged with the stopper pin 12 at the inner end. When the stopper pin 12 is engaged with the 1st engagement part 15a, a yarn guide rod 4 keeps its neutral posture rectangular to a yarn route rail 1, and when the stopper pin 12 is engaged with the 2nd engagement part 15d, the yarn guide rod 4 keeps its swingable posture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn guide device in a horizontal knitting machine.

[0002]

2. Description of the Related Art As shown in FIG. 20, a yarn carriage body b, which is movably provided on a yarn guide rail a, has a yarn guide rod d having a yarn guide hole c at its tip end so as to be tiltably supported and the yarn guide. A sliding plate (e) which is slidable in a direction parallel to the rail (a) is provided so that the thread guide rod (d) is swingably displaced to the left and right from a neutral position orthogonal to the thread guide rail (a) along with the sliding plate (e). In addition, riding cam slopes i of the driving bolt g protruding from the carriage f are formed at both left and right positions of the yarn carriage body b, and both side surfaces j facing each other at the upper middle position are engaged with the driving bolt g. Japanese Patent Publication No. Sho 61 is a device which obtains an intarsia pattern in which a plurality of yarn guiding devices forming the depression k forming the surface are operated to sequentially change the yarns to obtain a pattern.
-51061. Note that in FIG. 20, m
Indicates a spring that repels the entrainment bolt g downward.

[0003]

However, this is equipped with stopper pins n at both ends of the yarn carriage main body b, and at both ends of a sliding plate e slidably provided on the yarn carriage main body b. A rotation stopper p that engages and disengages from the stopper pin n is provided, and a spring q is stretched between both rotation stoppers p, and the operating portion p-1 of the rotation stopper p is engaged with the stopper pin n by the spring q. It is biased to the position. Therefore, it is necessary to increase the tension of the spring q in order to reliably move the operating portion p-1 of the rotation stopper p to the lock action position. When the carriage body b is stopped at a predetermined position, when the rotation stopper p is pushed by the entrainment bolt g to release the engagement between the rotation stopper p and the stopper pin n, the tension of the spring q is resisted. Then, it is necessary to swing the rotation stopper p, which requires a large force. If you try to push the rotation stopper p with this large force,
The yarn carriage body b, which must be stopped, may move. Therefore, in this structure, it is necessary to provide a braking means for stopping the yarn carriage main body b at a predetermined position of the yarn guide rail a or to increase the sliding resistance between the yarn carriage main body b and the yarn guide rail a. ,
There are problems that the structure of the yarn carriage main body b becomes complicated and the movement is not performed smoothly. An object of the present invention is to obtain a yarn guide device in a horizontal knitting machine that does not have such a problem.

[0004]

In order to achieve the above object, the present invention provides a yarn guide device in a horizontal knitting machine according to claim 1, wherein a yarn carriage main body movably provided on a yarn guide rail is provided with a tip end. A thread guide rod having a thread guide hole is tiltably supported, and a slide plate is provided which is slidable in a direction parallel to the thread guide rail. It is configured so that it is swingably displaced from the neutral position orthogonal to the rail to the left and right, and at both left and right positions of the yarn carriage main body.
In a yarn guide device in a horizontal knitting machine, which forms a riding cam slope of a carrying bolt protruding from a carriage, and both side surfaces facing each other at an upper intermediate position form a recess forming an engaging surface for the carrying bolt, A pair of left and right stopper pins are fixed to the yarn carriage main body, positioned on both outer sides of the recess, and a mountain-shaped cam slope having the riding cam slope as an outer cam slope is continuously provided and the sliding An oscillating plate is provided which is pivotally supported at both ends of the plate and whose one-side action part oscillates before and after a mountain-shaped cam slope in the action area of the entrainment bolt, and on the other side of the oscillating plate. A cam groove with which the pair of stopper pins engage is provided, and the cam groove includes a first groove portion extending in the yarn path rail direction and a first engaging portion with which the stopper pin provided at the inner end thereof engages. Tilted downward from the engaging part A second groove portion extending toward one side and a second engaging portion with which the stopper pin provided at the inner end of the second groove portion engages, and a stopper is provided at the first engaging portion of at least one of the cam grooves. When the pin engages, the action portion of the rocking plate is in a position where it overlaps with the top of the mountain-shaped cam slope,
When the stopper pin is engaged with the second engaging portion, the action portion of the swing plate is located in front of and behind the top of the mountain-shaped cam slope.

In a yarn guide device in a horizontal knitting machine according to a second aspect of the present invention, a yarn carriage having a yarn guide hole at its tip is pivotally supported on a yarn carriage body movably provided on a yarn guide rail. In addition, a sliding plate that is slidable in a direction parallel to the yarn guide rail is provided, and the guide rod is accompanied by the sliding plate so as to be oscillated and displaced left and right from a neutral position orthogonal to the yarn guide rail. And at both left and right positions of the yarn carriage main body, the riding cam slopes of the driving bolts protruding from the carriage are formed, and the both side surfaces facing each other at the upper middle position form the engaging surfaces for the driving bolts. In the yarn guiding device of the horizontal knitting machine having the above-mentioned structure, the yarn carriage main body is provided with a pair of left and right stopper pins fixedly positioned on both outer sides of the recess, and the riding cam slope is located on the outer side. The sloped cam slopes, which are the slopes, are connected to each other, and slide pieces are provided on both ends of the slide plate, the slide pieces having an operating portion that moves in the operation area of the entrainment bolt and before and after the sloped cam slopes. An oscillating plate which is movably provided and slides the sliding piece is axially supported by both ends of the sliding plate, and a cam groove with which the pair of stopper pins engages is provided on the oscillating plate. ,
The cam groove extends inward from the first groove portion extending in the direction of the yarn path rail, the first engaging portion with which the stopper pin provided at the inner end of the cam groove engages, and the first engaging portion tilted downward from the first engaging portion. A second groove portion and a second engaging portion with which the stopper pin provided at an inner end of the second groove portion engages are configured, and the stopper pin engages with the first engaging portion of at least one cam groove. When engaged, the action portion of the oscillating plate is in a position where it overlaps with the top of the mountain-shaped cam slope, and when the stopper pin engages the second engaging portion, the action portion of the oscillating plate has the mountain-shaped cam. It is located before and after the top of the slope.

[0006]

In the yarn introducing device for the horizontal knitting machine according to claim 1, which has the above-mentioned structure, when the stopper pin engages with the first engaging portion of the cam groove, at least one of the first of the cam grooves is provided. When the stopper pin engages with the engaging portion, the action portion of the oscillating plate is located at a position where it overlaps with the top of the angled cam slope, and when the stopper pin engages with the second engaging portion, the oscillating movement Since the action part of the plate is located before and after the top of the mountain-shaped cam slope, compared to the conventional example in which the rocking plate is held at the position to engage with the stopper pin against the spring, the movement of the entrainment bolt is reduced. Accordingly, the pushing operation force when swinging the swing plate can be reduced.

Further, in the yarn introducing device of the horizontal knitting machine according to the second aspect, the oscillating piece having the cam groove is provided with an operating portion which moves forward and backward of the angled cam slope. The sliding piece slides in the moving direction of the carrying bolt. When the stopper pin is engaged with the first engaging portion of the cam groove, and when the stopper pin is engaged with the first engaging portion of at least one of the cam grooves, the acting portion is the top of the mountain-shaped cam slope. Since the action portion of the oscillating plate is always located before and after the top of the mountain-shaped cam slope when the stopper pin engages with the second engaging portion, it is against the spring of the conventional example. It is possible to reduce the pushing operation force when the sliding plate is slid in accordance with the movement of the entrainment bolt, as compared with the case where the oscillating plate is held at the position where it engages with the stopper pin.

[0008]

EXAMPLES Next, examples of the present invention will be described based on the examples shown in FIGS. In the figure, 2 indicates a yarn guide device,
The yarn guide device 2 is similar to a conventionally known yarn guide device, and a yarn carriage body 3 that is dovetail-fitted to the yarn guide rail 1 and a yarn guide rod 4 that is pivotally supported by the yarn carriage body 3.
And a guide hole 5 is provided at the tip of the guide rod 4.
At the left and right positions of the yarn carriage main body 3, as shown in FIGS. 3 and 8, a cam slope 7 is formed for riding the carrying bolt 6 provided on the carriage 10 side, and a recess 8 is formed at the left and right intermediate positions. And both side surfaces 8 of the depression 8
a and 8a form an engaging surface with which the entrainment bolt 6 engages, and when the entrainment bolt 6 engages the side surface 8a of the recess 8, the yarn carriage main body 3 is entrained by the carriage 10 and the yarn path. Move on rail 1.

Further, the entrainment bolt 6 can move upward against a spring (not shown) similarly to the conventional example, and the amount of protrusion can be increased depending on an electromagnet or other actuating device (not shown) provided on the carriage 10. Is configured to be changed, and by changing the amount of protrusion, it is configured to enter and exit the recess 8. The configuration so far is not particularly different from the conventionally known one.

According to the present invention, a yarn guide device 2 having such a structure is provided.
In the yarn carriage body 3, the yarn path rail 1
The yarn carriage main body 3 movably provided above is provided with a guide rod 4 at its tip end so that the middle of the guide rod 4 is tiltably supported by a shaft 9 and is slidable in a direction parallel to the yarn guide rail 1. A moving plate 11 is provided. Further, a pair of left and right stopper pins 12 are further fixed to the yarn carriage main body 3 and positioned on both outer sides of the recess 8 so that the upper surface parallel to the yarn guide rail 1 and the riding cam slope 7 are located on the outer cam slope. The oscillating plate 14 is provided so that the ridge-shaped cams 13 are connected to each other and pivotally supported on both ends of the sliding plate 11 so that the acting portion 14a on one side appears and disappears in the acting region of the entrainment bolt 6. A cam groove 15 with which the pair of stopper pins 12 and 12 engage is provided on the other side of the moving plate 14. As shown in FIG. 9, the cam groove 15 has a first engaging portion 15 with which the first groove portion 15a substantially extending along the yarn guide rail 1 and the stopper pin 12 provided at the inner end thereof engage.
b, a second groove portion 15c inclined inward from the first engagement portion 15b and extending inward, and a second engagement portion 15d engaged with the stopper pin 12 provided at the inner end of the second groove portion 15c. As shown in e and f of FIG. 12, when the stopper pin 12 engages with the first engaging portion 15b, the yarn guide rod 4 maintains a neutral posture orthogonal to the yarn guide rail 1, and a in FIG. As shown in FIG. 5, the thread guide rod 4 is kept in the swinging displacement posture when the stopper pin 12 is engaged with the second engaging portion 15d.

To further explain this, as shown in FIGS. 3 to 8, the yarn carriage main body 3 has a groove 16 parallel to the yarn guide rail 1 on which the sliding plate 11 is slidably mounted, as shown in FIGS. A back plate 3a provided and a lid plate 3b provided on the front face thereof are provided, and a top 17 rotatably supported at the central position of a sliding plate 11 mounted in the groove 16 of the thread guide rod 4 is rotatably supported. The guide rod 4 is fitted into the long hole 4a provided at the upper end, and the guide rod 4 is slidable.
It was designed to be oscillatingly displaced as the sliding of.

Reference numeral 18 denotes a positioning pin that is repulsively abutted by the spring (18a) and abuts against the mountain-shaped surface 14b at the other end of the sliding plate 11 in which the cam groove 15 is provided (see FIG. 8). The positioning pin 18 is slidably supported by a guide member 19 attached to the sliding plate 11. Reference numeral 20 denotes a detaching piece for promptly detaching the entrainment bolt 6 provided on the yarn carriage body 3 from the recess 8. The detaching piece 20 has an inclined surface on the upper surface of its inner end 20a and is outwardly moved by a spring 22. Normally, the inner ends 20a are flushed with the respective side faces 8a, 8a, and the outer ends 21b project outward from the respective end faces of the yarn carriage main body 3. Therefore, when the two yarn carriage bodies 3 are provided on the common yarn path rail 1, when the yarn carriage body 3 located at the rear in the traveling direction approaches the front yarn carriage body 3, the outer end 2
0b hits the front end surface of the yarn carriage body 3, and the inner end 20a of the detachable piece 20 projects inward from the side surface 8a of the recess 8, so that the driving bolt 6 is pushed out of the recess 8 according to the slope of the inner end 20a. To leave. Therefore, the yarn carriage body 3 can be stopped early. A dovetail groove 21 is provided on the back surface of the yarn carriage main body 3, and the yarn path rail 1 is configured as an dovetail to fit the yarn carriage body 3 on the yarn path rail 1. As shown in FIG. 3, the dovetail groove forming member 21a on one side is repulsed to the dovetail groove forming member 21c side on the other side by a weak spring 21b as shown in FIG. Sliding resistance between 3 and 3 was given.

Next, the operation of this apparatus will be described with reference to FIGS. 1 and 11 to 1.
I will explain about 3. The yarn guide rod 4 of the yarn carriage body 3 which has moved to the left end by the carriage 10 is shown in FIG.
As shown in No. A and FIG. 11A, the yarn guide rod 4 maintains the swinging displacement posture in which it is displaced rightward with respect to the yarn guide rail 1. From this state, when the carriage 10 moves rightward and reaches the vicinity of the left side of the yarn carriage main body 3, the entrainment bolt 6 of the carriage 10 comes to the entrainment operation position which is moved downward by the actuator (not shown). When the carriage 10 further moves to the right,
The action portion 14a of the left swing plate 14 is touched,
Push a to the right. Therefore, the sliding plate 11 is pushed to the right side through the swing plate 14. Therefore, b, c, and
After the process of d, the thread guide rod 4 assumes the neutral position shown in FIG. 12e. When the action portion 14a substantially overlaps the top of the mountain-shaped cam slope shown in FIG. 12e, the entrainment bolt 6 is guided by the mountain-shaped cam 13 of the yarn carriage main body 3 to swing plate 1.
4, the yarn carriage body 3
Into the recess 8 and then the driving bolt 6 engages the right side surface 8 a of the recess 8. Therefore, the yarn carriage main body 3 is entrained by the carriage 10, and the knitting yarn is supplied to the knitting needle B from the yarn guiding hole 5 at the tip of the yarn guiding rod 4 to knit the section A (state B in FIG. 1). Then, when the yarn feeding to the knitting needle B in the section A is completed, the driving bolt 6 is moved upward by an operating device (not shown), and the driving bolt 6 is separated from the recess 8. Therefore, the carriage of the yarn carriage body 3 is cut off and the yarn carriage body 3 is stopped at the position. And the carriage 10
Goes further rightward and engages with the inside of the action portion 14a of the right oscillating plate 14 (g in FIG. 12). While rotating the oscillating plate 14 clockwise, the sliding plate 11 is moved to the yarn carriage main body. 13 is slid to the right side as shown by i, j, and k in FIG. The sliding of the sliding plate 11 to the right causes the thread guide rod 4 to assume a tilted swing displacement posture (1 in FIG. 13). That is, the yarn guide hole 5 that has finished supplying yarn to the knitting needles of the section A is located above the range of the knitting width of the section A formed by the yarn supply from the yarn guide hole 5, and the next rewind course Until the yarn feeding starts, it waits in a state of being kept in this position (state of D in FIG. 1). The sliding plate 11 is rotated while rotating the swinging plate 14 in the clockwise direction.
When sliding the right side of the yarn carriage main body 3, the stopper pin 12 is disengaged from the first engaging portion 15b of the cam groove 15 provided in the right swing plate 14 and is engaged with the second engaging portion 15d. (State from j to k in FIG. 13). For this reason, the thread guide rod 4 is in a swinging displacement posture, and in addition, the swinging plate 14 is erected from a tilted state so that the acting portion 14a acts on the entraining bolt 6. And the swing plate 14 on the left side
The stopper pin 12 is disengaged from the first engaging portion 15b of the cam groove 15 provided at the outermost position of the first engaging portion 15a.
The yarn carriage main body 3 kept in the standby position described above is again accompanied by the carriage 10 during knitting of the return course. The operation is as follows. That is, when the carriage bolt 10 is moved to the left, when the entrainment bolt 6 is projected to the lower operation position at the right position of the yarn carriage main body 3, the action portion 1 of the rocking plate 14 protruding in the operation region of the engagement bolt 6 is moved.
The entrainment bolt 6 hits the right side of 4a and pushes it to the left. For this reason, the swing plate 14 rotates counterclockwise and moves the sliding plate 11 leftward to return it to the central position.
This returns the thread guide rod 4 to the neutral position. afterwards,
The driving bolt 6 is guided by the riding cam slope 7 and comes out of the action portion 14a of the rocking plate 14 into the recess 8. When the driving bolt 6 comes into contact with the left side surface 8a, the yarn carriage main body 3 is obtained. Is moved to the left along with the carriage 10, and the yarn supply to the knitting needles in the A section is started. That is, the yarn guide hole 5 provided at the tip of the entrainment bolt 6 returns to the upper right position outside the knitting width range of the A section formed by the yarn feeding in the forward course, and subsequently to the knitting needle of the A section. The yarn feeding is started. Then, when the yarn feeding to the knitting needle B of the section A is completed, the entraining bolt 6 is moved upward by the operating device (not shown), and the entraining bolt 6 is disengaged from the recess 8 as in the forward course, and the yarn carriage is moved. The yarn carriage body 3 is stopped at that position by cutting off the carriage of the body 3 and the carriage 1
0 further goes to the left and engages with the inside of the action portion 14a of the left oscillating plate 14, and while rotating the oscillating plate 14 counterclockwise, the sliding plate 11 is moved to the left side with respect to the yarn carriage main body 3. Slide it on. The sliding of the sliding plate 11 to the left causes the thread guide rod 4 to be in an inclined swinging displacement posture. That is, the yarn guide hole 5 that has finished supplying yarn to the knitting needles of the section A is located above the range of the knitting width of the section A formed by the yarn supply from the yarn guide hole 5, and the next forward course It waits in the state kept in this position until the yarn feeding starts.

FIGS. 14 to 19 show another embodiment. To explain this, the above-mentioned one has the action portion 14a acting on the entrainment bolt 6 integrally provided on the sliding plate 14, so that the action will be described. The portion 14a also makes a swinging motion about the axis.
Therefore, the movement of the action portion 14a becomes complicated, and it is difficult to adjust the positional relationship with the chevron cam 13 by that much. Therefore,
In this embodiment, in order to make the operating portion 14a linearly move along the operation direction of the entrainment bolt 6, the operating portion 14a is moved.
a slide piece 23 provided with a and a swing plate 24 for operating the slide piece 23
And are provided separately. Explaining this, the sliding plate 23 is provided with a sliding piece 23 having an operating portion 14a that moves in the operating region of the entrainment bolt 6 and before and after the angled cam slope 13.
Rocking plates 24 slidably provided on both ends of the sliding plate 23 for sliding the sliding pieces 23 are provided on both ends of the sliding plate 11 so as to support the pair of rocking plates. The same cam groove 25 as that of the above-described embodiment, which engages with the stopper pin 12, is provided, and the swing plate 2
The sliding piece 23 was slid by the method described in No. 4. That is,
The cam groove 25 is a first groove portion 25 extending in the yarn path rail direction.
a and a first engaging portion 25b with which the stopper pin 12 provided at the inner end thereof engages, a second groove portion 25c inclined inward from the first engaging portion 25b and extending inward, and a second groove portion 25c. When the stopper pin 12 is engaged with the first engaging portion 25a of at least one of the cam grooves 25, the second engaging portion 25d with which the stopper pin 12 is engaged is provided. , The action portion 14a of the oscillating plate 24 is located at a position where it overlaps with the top of the mountain-shaped cam slope 13, and the second engaging portion 25
When the stopper pin 12 is engaged with c, the operating portion 14a of the sliding piece 23 is positioned before and after the top of the mountain-shaped cam slope 13. To further explain this, the sliding piece 23
Is engaged with the groove 26 provided on the sliding plate 11 by the protruding portion 23a protruding from the back surface thereof, and the protruding piece 23c protruding from the sliding piece 23 is engaged with the recess 24a provided on the swing plate 24. The sliding piece 23 is moved along the groove 26 in conjunction with the swinging motion of the swinging plate 24. The other configurations are the same as those of the previous embodiment. The same reference numerals are given to the structures corresponding to those of the previous embodiment. And the operation is
Since there is no particular difference from the above-described embodiment except that the acting portion 14a is a linear movement, the description thereof will be omitted.

[0015]

As described above, according to the yarn guiding device in the horizontal knitting machine of the first aspect of the present invention, when the stopper pin engages with the first engaging portion of the cam groove, the action of the oscillating plate Since the portion of the rocking plate projects into the working area of the carrying bolt and the working portion of the oscillating plate retracts from the working area of the carrying bolt when the stopper pin engages with the second engaging portion, the spring of the conventional example is resisted. Compared with a device that keeps the rocking plate in a position where it engages with the stopper pin, a large pushing operation force is not required when rocking the rocking plate with the entrainment bolt, and the yarn carriage main body is set to a predetermined position on the thread guide rail 1. In order to stop at the position, it is not necessary to use a brake device or to apply a large sliding resistance between the yarn carriage body and the yarn guide rail, and the yarn carriage body as a whole can be smoothly operated by the carriage. When the yarn guide device in the horizontal knitting machine according to claim 2 is used, the acting portion has a mountain-shaped cam slope 1
Since it moves linearly before and after 3, it is easy to adjust the positional relationship with the chevron cam.

[Brief description of drawings]

FIG. 1 is a front view showing an example of an embodiment of the present invention.

2 is an enlarged cutaway side view of FIG.

FIG. 3 is a rear view of the yarn carriage body.

FIG. 4 is a left side view of the yarn carriage body.

5 is a sectional view taken along the line AA of FIG.

6 is a sectional view taken along the line BB of FIG.

7 is a sectional view taken along the line CC of FIG.

FIG. 8 is a front view with the cover plate removed.

FIG. 9 is a front view of the left swing plate.

FIG. 10 is a front view of a sliding plate.

FIG. 11 is an explanatory diagram explaining the operation.

FIG. 12 is an explanatory diagram explaining the operation.

FIG. 13 is an explanatory diagram explaining the operation.

FIG. 14 is a side view showing another embodiment.

FIG. 15: Exploded slope view

16 is a sectional view taken along the line DD in FIG.

FIG. 17 is an explanatory diagram explaining the operation.

FIG. 18 is an explanatory diagram explaining the operation.

FIG. 19 is an explanatory diagram explaining the operation.

FIG. 20 is a front view showing a conventional example.

[Explanation of symbols]

1 yarn path rail 2 yarn guide device 3 yarn carriage main body 4 yarn guide rod 5 yarn guide hole 6 carrying bolt 7 cam slope 8 recess 10 carriage 11 sliding plate 12 stopper pin 14 rocking plate 15 cam groove

Claims (2)

[Claims] 1. A yarn carriage having a yarn guide hole at its tip is pivotally supported on a yarn carriage main body movably provided on the yarn guide rail and slidable in a direction parallel to the yarn guide rail. A sliding plate is provided, the guiding rod is swingably displaced from the neutral position orthogonal to the yarn guide rail to the left and right along with the sliding plate, and at both left and right positions of the yarn carriage main body. In a yarn introducing device in a horizontal knitting machine, which forms a riding cam slope of a driving bolt protruding from a carriage, and both side surfaces facing each other at an upper intermediate position form a recess forming an engaging surface for the driving bolt, A pair of left and right stopper pins are fixed to the yarn carriage main body, positioned on both outer sides of the recess, and a mountain-shaped cam slope having the riding cam slope as an outer cam slope is continuously provided and the sliding An oscillating plate is provided which is pivotally supported at both ends of the plate and whose one-side action part oscillates before and after a mountain-shaped cam slope in the action area of the entrainment bolt, and on the other side of the oscillating plate. A cam groove with which the pair of stopper pins engage is provided, and the cam groove includes a first groove portion extending in the yarn path rail direction and a first engaging portion with which the stopper pin provided at the inner end thereof engages. A second groove portion that extends inward from the engaging portion and is inclined downward
And a second engaging portion with which the stopper pin provided at the inner end of the groove engages. When the stopper pin engages with the first engaging portion of at least one of the cam grooves, The working portion of the plate is positioned to overlap the top of the chevron-shaped cam slope, and when the stopper pin engages the second engaging portion, the action portion of the rocking plate is positioned before and after the top of the chevron-shaped cam slope. A yarn guide device for a horizontal knitting machine. 2. A yarn carriage main body having a yarn guide hole at its tip is pivotally supported on a yarn carriage main body movably provided on the yarn guide rail and slidable in a direction parallel to the yarn guide rail. A sliding plate is provided, the guiding rod is swingably displaced from the neutral position orthogonal to the yarn guide rail to the left and right along with the sliding plate, and at both left and right positions of the yarn carriage main body. In a yarn guide device in a horizontal knitting machine, which forms a riding cam slope of a carrying bolt protruding from a carriage, and both side surfaces facing each other at an upper intermediate position form a recess forming an engaging surface for the carrying bolt, A pair of left and right stopper pins are fixed to the yarn carriage main body, positioned on both outsides of the recess, and mountain-shaped cam slopes having the riding cam slopes as the outer cam slopes are continuously provided. A slide piece provided with an action portion that moves in the front and rear direction of the mountain-shaped cam slope in the tilting action area, is slidably provided at both ends of the slide plate, and the swing piece that slides the slide piece is provided. A moving plate is provided on both ends of the sliding plate so as to be pivotally supported, and a cam groove with which the pair of stopper pins engage is provided on the swing plate, and the cam groove is a first groove portion extending in the yarn path rail direction. And a first engaging portion with which the stopper pin provided at its inner end engages, a second groove portion extending inwardly inclined downward from the first engaging portion and an inner end of the second groove portion. A second engaging portion with which the stopper pin engages, and when the stopper pin engages with the first engaging portion of at least one of the cam grooves, the action portion of the swing plate has a chevron shape. When the stopper pin is engaged with the second engaging portion, the action portion of the rocking plate is located at a position overlapping with the top of the cam slope, Yarn introduction device in the horizontal hosiery knitting machine comprising so as to be positioned around the section.