JPS6158577B2 - - Google Patents

Description

[Detailed description of the invention] When performing plating knitting with a flat knitting machine, a special thread guide hole called a double thread path is usually used, and the conventional double thread paths 1, 1' are For example, as shown in Fig. 1, the outer periphery is formed into a tapered funnel shape, and the cross-sectional shape is in the left-right direction (the direction of movement of the thread guide hole).
In the center of the yarn feeding part 1a, which has a long oval shape, a round hole 2 passing through it in the vertical direction, and an arcuate slot 3 having a semicircular outside thereof, are formed. Alternatively, as shown in FIG. 2, the yarn feeding section 1' whose cross-sectional shape is approximately diamond-shaped.
a, two round holes 2' passing through it in the vertical direction,
It was constructed by drilling 3'.

However, in the double yarn path 1 as shown in FIG.
As a switchable yarn path, not only is there a high risk of collision, but the ground yarn fed through the slot 3 is fed into the slot 3 from a central position above it. If the eyelet 4 for the ground yarn is not set and installed in this way, when the double yarn path 1 changes direction, the ground yarn 5 will not be able to move smoothly from side to side within the arcuate slot 3. In addition, the movement of the ground thread 5 within the arcuate slot 3 is often caused by the resistance of the thread, making it easy to make mistakes. In addition, in the case of the double yarn path 1' shown in FIG. 2, there was a problem in that the ground yarns were not automatically switched between the leftward course and the rightward course.

The purpose of this invention is to improve the drawbacks of the conventional plating knitting device using such a double thread path,
It is an object of the present invention to provide a yarn feeding method and device for plating knitting, in which the ground yarn is automatically, smoothly and reliably changed at the turning point of the carriage.

That is, the gist of the first invention is that each knitting yarn is moved by each yarn guiding lever on a pair of carriers provided separately and slidably on a pair of yarn guide rails. At the same time, when the carriage moves to the right or when the carriage moves to the left, the thread guide hole of the thread guide rod that feeds one knitting thread is used to feed the other knitting thread. A flat knitting machine characterized by the fact that one guiding rod feeds the base yarn and the other guiding rod feeds the surface yarn by slightly following the yarn guiding hole of the guiding rod. The gist of the second invention lies in a yarn feeding method for plating knitting, in which a pair of carriers each having a yarn guide rod are slidably provided on a pair of yarn guide rails, and A plunger for carrying the carrier is placed in the upper plunger box.
A recess is formed in one of the pair of carriers so as to be freely retractable and facing the carrier, and a recess is formed in one of the pair of carriers to provide a constant idle stroke d ₁ with respect to the plunger, and the other is provided with a recess that provides a constant idle stroke d ₂ with respect to the plunger. (d ₂ > d ₁ ) is formed at the tip of each thread guide rod, and when a pair of carriers are carried, one thread guide hole is spaced at a constant interval of 1/2 (d 2 > d 1 ) from the other thread guide hole. A yarn feeding device for plating knitting in a flat knitting machine is characterized in that yarn guide holes are provided at selected positions where d ₂ - _{d 1} ) occur.

The embodiment will be explained with reference to FIG. 3 and below. In FIG. 3, 11 is a needle bed, 12 is a needle groove, 13 is a knitting needle implanted in the needle groove 12, 14 is a carriage,
Reference numerals 15a and 15b denote a pair of thread guide rails. Each thread guide rail 15a and 15b is supported at both ends by machine frames (not shown) at both ends of the needle bed 11, and is placed above the carriage 14. It is installed parallel to the longitudinal direction of the needle bed 1.

In the yarn feeding device for plating knitting according to this invention,
As shown in FIGS. 4 and 5, a pair of carriers 20a and 20b each having one guiding thread rod 16a and 16b are slidably fitted into the thread guide rails 15a and 15b, respectively. In the carrier 20a of the embodiment, since the thread guide rail 15 is a round bar,
The tip of the carrier 20b is slidably supported by a bracket 17 protruding from the carriage 14, as shown in FIG. It is slidably supported by a rail 19,
It is held in a certain position.

A plunger box 18 is provided on the carriage 14 for entraining the carriers 20a, 20b when the carriage 14 runs. Then, the pair of plungers 21a and 21b are connected to the box 1.
The carriers 20a and 20b are provided so as to be freely retractable from inside the carriers 8. 22a, 22b
23a and 23b are holes formed in the plunger box 18 to slidably support the plungers 21a and 21b, respectively; 23a and 23b are pins protruding from the plungers 21a and 21b, respectively;
a and 24b are long holes formed in the plunger box 18, respectively, and the plungers 21a and 21b
The pins 23a and 23b are connected to the elongated hole 24, respectively.
The plungers 21a, 21b are slidable within the holes 22a, 22b within the range in which they can move within the holes 22a, 24b, and each plunger 21a, 21b is supported by a spring 25a, 25b, respectively.
is biased to the protruding position toward the carriers 20a, 20b. 26 is the spring 25
These are the presser plates at the ends of a and 25b.

The two carriers 20a and 20b each include
Recesses 27a, 27b are formed into which the plungers 21a, 21b can enter at their protruding positions, and each recess 27a, 27b has a different constant length d ₁ , respectively, relative to the plunger 21a, 21b inserted into the recess. The width of each recess 27a, 27b is set to give a floating stroke of d ₂ (d ₁ < d ₂ ), and the following positions are selected for the tips of each thread guiding rod 16a, 16b. The thread guiding holes 30a and 30 are respectively
b is provided. That is, the pair of plungers 21a, 21b are connected to the engaging portions 2 on the same side (right side) of the recesses 27a, 27b of the carriers 20a, 20b facing each other, as shown in FIG.
8a and 28b (this state is when the carriage moves to the right), the thread guiding rod 16a
A constant interval 1/2 (d ₂ −d ₁ ) is created between the thread guide hole 30a at the tip of the thread guide hole 30a and the thread guide hole 30b at the tip of the thread guide rod 16b, and the thread guide hole 30a is arranged as shown in FIG. Located on the upper right side,
When the pair of plungers 21a, 21b are respectively engaged with the engaging portions 29a, 29b on the opposite side (left side) of the recesses 27a, 27b of the carriers 20a, 20b (this state is the state when the carriers are moving to the left). ), the positions of the thread guide holes 30a and 30b are swapped left and right, and the thread guide holes 30a are arranged so that the same constant interval 1/2 (d ₂ - d ₁ ) as above is created between both the thread guide holes 30a and 30b. , 30b, and set the positions of each thread guiding rod 16.
a, 16b are attached to carriers 20a, 20b. Note that the pair of thread guide holes 30a and 30b provided as described above pass each other when their positions are switched at the turning point of the carriage, so in this embodiment, the base of the thread guide rod 16b is The end portion of the yarn guiding rod 16b is pivoted to the carrier 20b by a pivot 31, and is biased by a spring 32 to the yarn feeding position in the A direction.
When the thread guide hole 30b passes the thread guide hole 30a, relief in the opposite direction is automatically given.

Note that 33a and 34a are guide cam slopes for the plunger 21a formed on both sides of the carrier 20a, and 33b and 34b are the guide cam slopes for the plunger 21a formed on both sides of the carrier 20a.
These are guide cam slopes formed on both sides of the plunger 21b, and the engaging portions 29a, 29 on the left side of the recesses 27a, 27b in the carriers 20a, 20b of this embodiment in FIGS.
The depth of b is smaller than the depth of the right engaging portions 28a and 28b, respectively.

In addition, in the figure, 40a and 40b have parallel links 41a, 42a, and 4 for each pair at both ends.
1b and 42b, in this embodiment, when each parallel link is displaced, the control rods 40a and/or 40b move in parallel and act on the pins 23a and/or 23b, respectively, and the plunger 21a and/or 21b are controlled to appear and disappear simultaneously or separately.

Next, the yarn feeding method according to the present invention using the yarn feeding device of this embodiment will be explained.As will be easily understood from the above,
Since the plating device of the present invention is configured as described above, when the control rods 40a and 40b are controlled to cause only the plunger 21a to protrude, the plunger 21a is in the recess 27 of the carrier 20a.
a, and the yarn is fed through the yarn guiding hole 30a. Now, move the other carrier 20b, for example, to one of the reciprocating strokes (fourth,
If you stop at the turning point (upper right side of Figure 5),
The ground yarn passed through the yarn guide hole 30b of this carrier 20b is not fed.

However, if the control rods 40a, 40b are controlled to make both the plungers 21a, 21b protrude, when the carrier 20a reaches the turning point of its stroke, the plunger 21b will be inserted into the recess 27b of the carrier 20b. Since the plunge engagement occurs, at a later point in time, both carriers 20
a, 20b will be taken to the plunger box 18, and the ground yarn will be fed from the yarn guide hole 30b.

In the device of the present invention, both plungers 21a and 21b are connected to respective carriers 20a and 20b.
In the state where they are respectively engaged, as mentioned above,
Also when the plunger box moves to the right (Fig. 4),
Even when running to the left (Fig. 5), the yarn guide hole 3 feeds the ground yarn.
0b feeds the surface yarn at a constant interval of 1/2 (d ₂ - _{d 1} ) behind the yarn guiding hole 30a that feeds the surface yarn, so that the thread feeds the yarn at a constant interval of 1/2 (d 2 − d 1 ), so that the thread feeding hole 30a always lags the thread guide hole 30a, which feeds the surface yarn, by a constant interval of 1/2 (d 2 - d 1 ). , it is possible to knit a plating fabric in which the same knitting yarn is used as the front yarn and is displayed on the front side of the knitted fabric, and the same knitting yarn is used as the base yarn and hidden on the back side of the knitted fabric.

In addition, in the above plating stitch, when the carriage reaches the right or left turning point, if the plunger 21b is controlled and plunged into the plunger box 18, the plunger 21b can be moved at the right turning point, for example. If you immerse the carrier 2
The running of the yarn 0b reaches the state shown in FIG. 4, where it is in a standby state and the feeding of the dead yarn is stopped. Therefore, when the plunger 21b is controlled to protrude next time, the carrier 20b is taken to the plunger box 18 again from the time when the carrier 20a reaches the turning point on the right side, and plating knitting is immediately resumed. .

Furthermore, in the method and apparatus of the present invention, each of the thread guiding rods 16a, 16b on a pair of carriers 20a, 20b, which are provided separately and slidably on a pair of thread guide rails 15a, 15b, respectively.
, so that when the carriage is traveling to the right or left, the plunger 21b is moved to the carrier 20b at any position in the stroke. One thread guiding rod 16 is inserted into the recess 27b.
If the supply width of the base yarn by b is made smaller than the supply width of the surface yarn by the other yarn guiding rod 16a, plating can be performed only in a part of one knitting course.

As described above, according to the yarn feeding method and yarn feeding device for plating knitting of the present invention, the objects mentioned at the beginning can be solved, and the ground yarn can be switched between the left course and the right course. This can be done smoothly without any trouble.

[Brief explanation of the drawing]

FIGS. 1 and 2 are perspective views showing a known double yarn path, respectively. FIGS. is a side view thereof, and FIGS. 4 and 5 are plan views thereof, respectively. 15a, 15b... Thread guide rail, 16a, 16
b...Guiding rod, 18...Plunger box,
20a, 20b...Carrier, 21a, 21b
... Plunger, 27a, 27b ... Recess, 3
0a, 30b... Thread guide hole.

Claims (1)

[Scope of Claims] 1. Feeding different knitting yarns to knitting needles by means of yarn guide rods on a pair of carriers provided separately and slidably on a pair of yarn guide rails. At the same time, both when the carriage moves to the right and when the carriage moves to the left, the thread guide hole of the thread guide rod that feeds one knitting yarn is connected to the guide hole of the thread guide rod that feeds the other knitting yarn. Feeding of plating stitches in a flat knitting machine characterized by feeding the ground yarn with one yarn guiding rod and feeding the surface yarn with the other yarn guiding rod by slightly trailing the yarn hole. Yarn method. 2 A pair of carriers each having a thread guide rod are slidably provided on a pair of thread guide rails, and a plunger for carrying the carriers to a plunger box on the carrier is attached to the carrier. One of the pair of carriers is provided with a recess that provides a constant idle stroke d ₁ to the plunger, and the other has a recess that provides a constant idle stroke d ₂ (d ₂ > d ₁ ) is formed at the tip of each thread guide rod, and when a pair of carriers are carried, one thread guide hole is spaced from the other thread guide hole at a constant interval of 1/2 (d _{2 )} . A yarn feeding device for plating knitting in a flat knitting machine, characterized in that yarn guiding holes are provided at selected positions where -d ₁ ) occurs. 3. Plating knitting in a flat knitting machine according to claim 2, wherein the plungers for carrying the pair of carriers are a pair of plungers respectively installed opposite to each other carrier. Yarn feeding device.