JPS5853097B2 - Knitting machine yarn feeding conversion device - Google Patents

Description

Detailed Description of the Invention The present invention provides a knitting machine that converts a plurality of knitting yarns involved in the knitting by respectively displacing a plurality of yarn feeders to a yarn feeding position and a non-yarn feeding position. The present invention relates to a yarn feeding conversion device.

The conventionally known yarn feeding and converting devices can be roughly divided into the following two types.

First, only the main knitting machine is used, and the knitting yarn is changed depending on whether the yarn feeder grips or releases the knitting yarn.

The second is whether to use both the main knitting machine and the fine knitting machine, and whether to capture the knitting yarn that is always stopped by the yarn feeder from converting the knitting yarn and insert it into the yarn feeder, or to let it escape from the yarn feeder. This is done by

However, the former uses only the main knitting machine to perform yarn feed conversion, so when knitting multicolored patterns such as knitting, the yarn may float across the knitting width direction on the back side of the knitted fabric. When handling or wearing the knitted fabric, these so-called crossover threads can get caught on fingers or buttons, causing the knitted fabric to become taut, or the crossover threads may be cut and the stitches may fall off around that point. There is a drawback that it does.

In addition, this device only has a guide piece for leading out and taking out the knitting yarns coming up from the yarn feeder, so it is important to know which knitting yarns should be inserted into the yarn feeder among the knitting yarns gathered near the yarn feeder during yarn feed conversion. There is also a drawback that it is not possible to reliably separate the knitting yarns that escape, and that both knitting yarns get entangled with each other and escape from the yarn feeder or are inserted together, making it impossible to knit by changing the yarn feed.

In addition, the latter uses the main and sub-knitting machines to knit the knitting needles on the fine knitting machine side and also knits the back side of the knitted fabric, so the problem of the crossing yarn like the former is solved, but the yarn feeding by this device Conversion is always carried out by capturing the knitting yarn held in the yarn supplying body (Q), and due to carriage sliding etc. Sub + h I.

Knitting work is performed while dragging the loose knitting yarn.

Therefore, this knitting yarn is rubbed against the carriage edge cap and cut.
The yarn may become tangled in the rotating brush etc., which may interfere with the knitting work, or the yarn take-up action by the knitting yarn take-up spring may not function sufficiently, making it impossible to always obtain uniform stitches. There are drawbacks.

Therefore, in order to solve all the drawbacks that seem to be two in a row,
Yarn feed conversion is carried out by using the main knitting machine and the sub-knitting machine, and by whether the yarn feeder grips or releases the knitting yarn, and the yarn feeder 1-1 is provided with a member for sorting the knitting yarn. That's fine, but a new problem arises in this case.

In other words, with the conventional latter device, the problem was:
When the main and sub-knitting machines are used to change the yarn supply depending on whether the yarn feeder grips or releases the cotton yarn (1, this main, sub-knitting machine Lj l!”t< 1 乘Since the '+j; The yarn feeding angle jf of the knitting yarn up to one yarn becomes a -. steep angle, and the yarn feeding position is located closer to the knitting yarn operator side.

Therefore, even if the mounting frame body to which the yarn feeder is attached is simply installed at the i'#J position of the main and sub-knitting machines, it will not be possible to knit reliably unless the shape and displacement of the yarn feeder are made thicker by 50%. The yarn cannot be held, and the desired yarn feeding change cannot be carried out one by one.

One aspect of the present invention is to eliminate the numerous problems mentioned above and to smoothly and reliably perform the yarn feeding change.''11
The object of the present invention is to provide a yarn feeding and converting device with a simplified configuration.

The fruit *y+j in figure E will be explained below.

1.2 is the main and secondary wheel machine bodies, which are connected with appropriate connecting fittings (Fig.
3' and sinker needles 4, 4' are arranged facing each other at a substantially vertical angle so as to intersect with each other. The auxiliary carriages 5, 6 are slidably connected to the body by an arm 11 provided with a yarn feeder 117.

Reference numeral 8 denotes a knitting yarn sorting piece extending in the direction opposite to the direction in which the knitting yarn is taken out and taken out of the yarn feeding lower \, and 9 is a knitting yarn lead-in/out piece that extends in the lead-in/out direction.

Then, both ends of the knitting yarn sorting piece 8 and the knitting yarn leading-in/out piece 9 are turned in opposite directions to each other, and once the knitting yarn is led out/taken in and out, they are crossed and extended upward L2. can be,
Moreover, the yarn feeder I is formed on the f side edge.

10 is knitting yarn sorting J! , -8 and the knitting yarn entry/exit month 9, there is a large knitting yarn 4 output groove formed in communication with the yarn supply 17 (Figs. It is.

Reference numeral 13 denotes a mounting frame, which is in the form of an elongated plate with an oblique side 13' on the - side, and is detachably attached to one side of the main knitting machine main body 1 using a support fitting (not shown). It is set to be supported at a predetermined position that allows sliding of the main and sub carriages 5 and 6 above one side of the sub-wheel machine bodies 1 and 2, and the seventh side is covered. 14 (Figures 1 and 2).

Reference numeral 15 is a knitting yarn displacement guiding member formed into a substantially U-shape by cutting, which includes one long side 1521 and short side 15I).
is mounted on the upper surface of the mounting frame 13, and the guiding portion 15c, which is the long side of the external force, protrudes outward from the oblique side 13' and is fixed to the mounting frame 13. 1
The distal end of 5c extends downward at a substantially right angle to form a transition portion 15d.

Reference numeral 16.17 denotes the first and second yarn feeders which are provided with gears -16a and 17a at the base end and hooks 16b and 17b, which are the gripping parts, at the tip end, respectively.
a are engaged with each other on the upper surface of the mounting frame 13, and their proximal ends are rotatably supported on the mounting frame 13, and the hooks 16b and 17b are vertically attached to the bottom of the frame 13. However, the knitting yarn displacement guiding portion 15 is set in a relationship in which it is alternately placed in a yarn feeding position and a non-yarn feeding position which are opposite to the guiding portion 15c of the knitting yarn displacement guiding portion 15.

In other words, the first yarn supplying body 16 is a hook 16t which is a gripping part)
As shown in FIG. 4, the center is located at the position formed by the extension of the knitting yarn sorting piece 8, on the side of the main knitting machine main body 1 in front of this position, and facing below the parallel part of the gushing part 15c. When the second yarn feeding body 17 is in the yarn feeding position (FIG. 3), the second yarn feeding body 17 holds the hook 17b, which is the gripping portion, from the position formed by extending the knitting yarn sorting piece 8, as shown in FIG. It is located at a non-yam feeding position (FIG. 3) facing below the mounting frame 13 on the rear side of the fine knitting machine main body 1.

In this state, when the gear 17b is rotated approximately 900 degrees counterclockwise (FIG. 2), the second yarn supplying body 17 moves the hook 17b to the guide portion 15c in front of the extending position of the knitting yarn sorting piece 8. The first yarn feeding body 16 is displaced to the yarn feeding position facing downward (dashed line in Figure 3), and the first yarn feeding body 16 is moved clockwise (
the same figure), and the hook 16b is placed behind the knitting yarn sorting piece 8 and facing the lower side of the attachment frame 13 (
(dashed line in the figure).

18 has a cam part 18a on the lower surface of one side and a passive piece 18b on the other side.
It is a rocking cam having a substantially central portion rotatably supported on the mounting frame 13, and a passive piece 18b is rotatably supported on the mounting frame 1.
The rear side of the sliding plate 20 (on the right side in FIG. 2) is slidably mounted on the supporting pieces 19, 19, which are set on one side on the upper surface of the mounting frame 13. face upwards,
In addition, the cam part 18a is brought into contact with the rear end of the sliding plate 20, and the tension spring 21 is always stretched between it and the mounting frame 13.
As a result, the cam portion 18a is urged to stand by at the original position (solid line in the figure) where it abuts the rear end of the sliding plate 20.

The sliding plate 20 has a front end (the left end in FIG. 2) bent downward at right angles to form an engagement piece 20a, and a substantially U-shaped recessed part 20b on one side of the front end. It is normally biased by a tension spring 22 stretched between the rear end and the mounting frame 13, and the engagement piece 20a is engaged with a stopper 19' integrally provided on the support piece 19. , is waiting at the original position (solid line in FIG. 2) where the rear end is in contact with the cam portion 18a.

23 is a rotating body having pins 23 a + 23 b on both the left and right sides, and the central part is installed with the central part being pivotally supported between the sliding plate 20 of the mounting frame 13 and the second yarn supplying body 17. .

24 is a substantially cross-shaped engagement claw member, which is attached to the rotating body 23.
One of the engagement claws 24a is supported coaxially and rotatably in a superimposed manner and faces each other.

24b is brought into contact with the pins 23a and 23b, and the other engaging claws 24c and 24d are brought into contact with the pin 23a.

It protrudes outward from between 23b.

The engaging claw member 24 is always engaged with the engaging claws 24c, 2.
4d is opposed to the engagement piece 20a of the sliding plate 20.

Reference numeral 25 denotes a rod that connects the rotating body 23 and the second yarn supplying body 17, one end of which is pivoted to the upper end of the pin 23a of the rotating body 23, and the other end connected to the upper end of the second yarn supplying body 17. It is pivotally supported on a fixed connecting piece 26.

Now, as the main and sub-carriages 5 and 6 (hereinafter collectively referred to as carriage C) slide, the activation piece 12 standing up on the arm 11 engages the driven piece 18b from the left side in FIG. As the carriage C continues to slide, the movable cam 18 rotates counterclockwise (as shown in the figure) against the tension spring 21, and the cam portion 18a pulls the sliding plate 20 against the tension spring 2.
2 to the left in the figure.

When the sliding plate 20 slides in the above direction, the engaging piece 20a first engages with the engaging claw 24c, and the engaging claw member 24 rotates counterclockwise (FIG. 2). Rotating body 23
As the slide plate 20 rotates and the sliding plate 20 continues to slide, the pin 23a engages with the recessed notch 20b at least before the engagement between the engagement piece 20a and the engagement claw 24c is released. The rotating body 23 and the engaging claw member 24 continue to rotate.

Then, the passive piece 18b and the sliding plate 20 are in the operating position (second
When the rotating body 23 and the engaging claw member 24 are displaced in the direction shown in FIG. 90
It rotates zero and is displaced from the non-yarn feeding position to the yarn feeding position, and in conjunction with this, the first yarn feeding body 16 is displaced from the yarn feeding position to the non-yarn feeding position.

As the carriage C continues to slide, the activation piece 12
When the engagement with the driven piece 18b is released, the swing cam 18
The sliding plate 20 is returned to its original position by the tension springs 21 and 22, and the engaging claw 24d faces the engaging piece 20a.

Then, the carriage C reaches the required position and reverses, and the activation piece 1
2 engages with the driven piece 18b from the opposite direction, the swing cam 18 rotates the cam part 18a in a direction that separates it from the sliding plate 20, and the sliding plate 20 returns to its original position without sliding. Since it remains in position, the first and second yarn feeders 16 and 17 do not operate.

When the carriage C is further reversed and the actuating piece 12 again engages the driven piece 18b from the left direction in FIG. 24d
are engaged, and the rotating body 23 makes a half-rotation following the above-mentioned half-rotation, and the connecting piece 26 is pulled by the rod 25 to rotate the second
The yarn feeder 17 rotates clockwise (as shown in the figure) and is displaced from the yarn feeding position to the non-yarn feeding position 7, and in conjunction with this, the first yarn feeder 16 moves from the non-yarn feeding position to the yarn feeding position. Displace to position.

Thus, in relation to the sliding movement of the carriage C, the first and second yarn feeders 16 and 1γ are automatically and alternately controlled to be displaced into the yarn feeding position and the non-yarn feeding position.

Next, the effect of this embodiment with the above configuration will be explained. As shown in FIG. A case where the knitting yarn M12M2 set on the yarn take-up spring 27 and located in the yarn feeding path is automatically alternated in relation to the sliding movement of the carriage C will be described with reference to FIGS. 4 to 7.

Now, the first yarn feeder 16 is at the yarn feeding position, and the second yarn feeding body 16 is at the yarn feeding position.
7 is in the non-feeding position, the knitting yarn M1 is released from the first yarn feeder 16 and is in the yarn feeder γ and in the yarn feeding state, and the knitting yarn M2 is in the hook 17b of the second yarn feeder 17. The thread is held in the non-feeding state, and knitting is being carried out using the knitting thread M1 (
Figures 4 and 5).

Now, as the carriage C is moved forward (in the direction of the arrow in FIG. 5) from the operating knitting needle section side to the mounting frame side, the knitting yarn M1 first comes into contact with the displacement portion 15d of the knitting yarn displacement guide member 15, As the carriage C continues to slide, this knitting yarn M1 moves inward toward the first and second yarn supplying bodies 16 and 17 while slidingly contacting the transition section 15d, and continues to move toward the guide section 1.
5c and is guided to the hook 16b of the first yarn supplying body 16.

Moreover, as the carriage C slides, the actuating piece 12 engages with the driven piece 18b in the direction of the arrow in FIG.
is rotated in a predetermined direction by approximately half the set amount, the first and second yarn feeders 16 and 17 are accordingly rotated in the predetermined direction by approximately half the set amount, and the first yarn feeder 16 is rotated by approximately half the set amount. During the rotation, the knitting yarn M guided by the guide section 15c
1 is held by this hook 16b, and the knitting yarn M2 is guided by the large knitting yarn lead-out piece 9, and is located in the communication portion between the knitting yarn lead-in/out groove 10 and the yarn feeding lower (FIG. 6).

Then, when the swing cam 18 rotates by a set amount as the carriage C continues to slide, the first yarn supplying body 16 moves to the hook 1.
6b with the knitting yarn M1 held in the non-yarn feeding position, and the knitting yarn M2
The second yarn feeder 17, which had been held by the hook 17b, is displaced to the yarn feeding position, and the knitting yarns M1 and M2 cross each other, and the knitting yarns that had been inserted into the yarn feeding lower M1 is also concentrated in the communicating portion where knitting yarn M2 is located.

Next, when the carriage C is turned back and moved back from the mounting frame side toward the working knitting needle side (in the direction of the arrow in Fig. 7), the tip of the knitting yarn sorting piece 8 intervenes between the knitting yarns M1 and M2. Both knitting yarns M12M2 are sorted, and as the carriage C continues to move back, the knitting yarn M1 is guided from the aggregated communicating part to the knitting yarn leading-in/out groove 10, and escapes from this knitting yarn leading-in/out groove 10 to be knitted. The thread is led out from the large piece 9, and
Knitting yarn M2 released from the hook 17b of the second yarn supplying body 17
is introduced into the yarn feeding lower by the knitting yarn sorting piece 8, and knitting is performed using this knitting yarn M2 (FIG. 7).

Also, with the return movement of the carriage C, the activation piece 12
engages with the driven piece 18b from the opposite direction to the forward movement;
The swing cam 18 rotates, but in this case, the sliding plate 20 remains at its original position without sliding, so that the first and second yarn feeders 16 and 17 do not operate.

Thus, as the carriage C reciprocates, the knitting yarn M12M2 force related to the knitting is converted into a phase-dynamic force.

In the above embodiment, the knitting yarn displacement guide member is made of cotton material and formed into a substantially U-shape, but the present invention is not limited to this. It is sufficient if they are formed continuously.

Further, in this embodiment, the two yarn supplying bodies are automatically and alternately displaced, but other methods, for example, a plurality of yarn supplying bodies may be operated manually.

As is clear from the above description, according to the yarn feeding conversion device of the knitting machine of the present invention, by using the main and sub-knitting machines, yarn feeding is performed depending on whether the yarn feeding body bites or releases the knitting yarn. In addition to the conversion, a knitting yarn sorting piece for sorting the knitting yarns is provided at the yarn feeder, and a knitting yarn displacement guide member is provided on the mounting frame, which solves the problem of crossing yarns seen in conventional devices. In addition, the yarn feeding conversion operation can be carried out without any trouble because the knitting yarn does not need to be pulled, unlike the yarn feeding conversion which is carried out by always catching the knitting yarn held in the yarn feeding body.

Furthermore, by providing the knitting yarn sorting piece of the present invention, it is possible to reliably sort the knitting yarn introduced into the yarn feeder from the knitting yarn introduced into the yarn feeder out of the collected knitting yarn. This eliminates the possibility that the knitting yarns are introduced into the yarn feeder or taken out together while being tangled with each other, unlike the yarn feeding conversion device that is simply provided with a guide piece. It can be done smoothly and reliably.

Furthermore, since the present invention is provided with the knitting yarn displacement guide member, the knitting yarn in the yarn feeding state is reliably guided to the gripping part of the yarn feeding body, and therefore, the yarn feeding can be changed more reliably.
In particular, the yarn feeding position of the yarn feeding body is set in front of the extended position of the knitting yarn sorting piece, and also in a position where the guiding part faces the gripping part, so that the yarn feeding and non-yam feeding positions of each yarn feeding body are set. This has excellent effects such as the amount of movement to the yarn feeder, the length and shape of each yarn feeding body can be set as small as possible, and the configuration of the yarn feeding conversion device can thereby be extremely simplified.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a perspective view showing the state set on a knitting machine, Fig. 2 is a plan view with a part of the cover cut away, and Fig. 3 is a main part. Fig. 4 is a side view of the main parts showing the state set in the knitting machine, and Figs. 5 to 7 are plan views of the main parts showing the operating state. 1.2... Main, secondary wheel machine body, 5, 6...
・Main, sub-carriage, 7... Yarn feeder, 16, 17
...Yam feeder, 13...Mounting frame, 15
...Knitting yarn guiding section g15c... Guide section,
15d...Transition part, 8...Knitting yarn sorting piece.

Claims (1)

[Claims] 1 Main and sub-carriages are slidably mounted on the main and fine knitting machine bodies, which are arranged facing each other in a predetermined relationship, and the yarn feeder is provided on an arm connected to the main and sub-carriages so as to slide together. In the yarn feeding path leading to the yarn take-up spring, there are a non-yarn feeding position and a yarn feeding position where the knitting yarn is placed in a non-feeding state or a yarn feeding state depending on whether the knitting yarn is held or released. A plurality of yarn supplying bodies are detachably provided at required positions of the main knitting machine main body, and the plurality of yarn supplying bodies are disposed in the above-mentioned,
A mounting frame supported by the upper force of the opposing part of the fine knitting machine main body, and a mounting frame mounted on the mounting frame to face each yarn feeding body, and connected to the knitting frame in the yarn feeding path in relation to the sliding of both carriages. A knitting yarn displacement guide member that continuously forms a transition part that contacts the yarn and shifts the knitting yarn toward the inner yarn supplying body and a guide part that guides the knitting yarn while continuing to make sliding contact with the yarn, and both carriages are attached as described above. When the frame body side is folded back and slid toward the working knitting needle side again, among the knitting yarns once gathered near the yarn feeder, the knitting yarn introduced into the yarn feeder and involved in knitting, and the knitting yarn led out and involved in knitting. In order to separate the knitting yarns from unrelated knitting yarns, the arm near the yarn feeder is provided with a knitting yarn sorting piece extending in a direction opposite to the direction in which the knitting yarns are introduced into and out of the yarn feeder. The non-yam feeding position is a position on the secondary line machine main body side behind the position where the knitting yarn sorting piece extends and is formed, and the yarn feeding position is:
A position on the main knitting machine main body side, which is forward of the position where the knitting yarn sorting piece is extended and formed, and a position where the gripping part provided on the yarn feeder faces the guiding part of the knitting yarn displacement guiding member. A yarn feed conversion device for a knitting machine, characterized in that it is set as follows.