JPS6014782Y2 - Knitting yarn change mechanism in yarn feed converter of knitting machine - Google Patents

Description

[Detailed description of the invention] The present invention is 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 knitting yarn changing mechanism that separates the knitting yarn introduced into the yarn feeder and the knitting yarn led out from the yarn feeder into a position where it is introduced and a position where it is pulled out.

Conventionally, as a yarn feeding conversion device for the above-mentioned knitting machine, for example, the
Devices disclosed in Japanese Patent Publication No. 9-4005 and Japanese Patent Publication No. 42-7667 are already known.

In all of these, after the yarn feeder part moves obliquely toward the back from the knitting yarn introduction/exit part extending toward the front side,
The terminal end of this winding was wound in a counterclockwise direction, forming a required distance from the knitting yarn lead-in/out part, and had a substantially 9-shaped shape when viewed from the top.

However, the end portion of this winding has a flat shape and does not extend upward, so this portion is only used to prevent the inserted knitting yarn from being unintentionally pulled out from the yarn feeder. There wasn't.

The yarn path called the one-name wari yarn path, which is used for yarn exchange in industrial flat knitting machines, has the same terminal part as mentioned above extending upward, but the yarn path itself is switched alternately like this one. Unlike the complicated and costly process of changing the yarn depending on the situation, this method is mainly used in home hand knitting machines as a simple configuration, and it is possible to insert or remove the knitting yarn from the yarn feeder. In machines where yarn is exchanged at the yarn feeder, it is necessary to always sort out the inserted knitting yarn and the escape knitting yarn from this yarn feeder, but conventionally, when changing yarn, between the area below the yarn feeder and the knitted fabric part, A phenomenon occurs in which the insertion knitting yarn and the escape knitting yarn come into contact with each other and get tangled, and as a result, there is a problem that they escape from the yarn feeder together while remaining tangled with each other, or they are inserted. It was done.

The purpose of the present invention is to solve the above-mentioned conventional drawbacks, and to introduce a position where each knitting yarn, which has been converted into a yarn feeding state and a non-yarn feeding state by a yarn feeder into a yarn feeding state and a non-yarn feeding state, into a yarn feeding port, and a device consisting of a yarn feeding port. It is an object of the present invention to provide a knitting yarn changing mechanism that can reliably perform the desired yarn feeding change.

The illustrated embodiment will be described below.

1.2 is the main and auxiliary line machine bodies, which are equipped with appropriate connecting fittings (
(not shown), and each knitting needle 3.3'
are arranged opposite to each other in a predetermined relationship such that they intersect in front of the sinker needle 4.4', and the main and sub line machine main bodies 1 and 2 are slidably mounted on the needle beds of the main and sub line machine bodies 1 and 2, respectively. The sub-carriage 5.6 is connected to an arm 9 having a yarn feeder body 8 having a yarn feeder lower so as to be able to slide together with the arm 9 (the first
figure).

Reference numeral 10 denotes a starting piece installed on the arm 9 so as to be able to rise and fall freely.

Reference numeral 11 denotes a mounting frame body, which has one end of its negative side bottom fixed and the other end of a support arm 12 fixed to one side of the knitting machine main body 1 in a removable manner.
The main carriage 5, 6 is supported at a predetermined position above the facing part of the main carriage 5, 6, and its upper side is covered with a cover 13 (the Figure 1.2).

Reference numeral 14 denotes a knitting yarn guide rod installed on the upper surface of one side of the mounting frame 11 (on the right side in FIG. 2), and the knitting yarn guide portion 14a is in the form of an abbreviation.
protrudes outward from the oblique side 11' of the mounting frame 11.

Reference numerals 15 and 16 denote first and second yarn feeders each having a gear 15a * 16a at the base end and hooks 15b and 16b at the tip end. The gears 15a and 16a are meshed with each other with the proximal ends rotatably supported on the mounting frame 11, and the hooks 15b and 16b are substantially perpendicular to each other.

Then, the first yarn supplying body 15 has a yarn feeding position where the hook 15b faces below the horizontal portion of the knitting yarn guide section 14a (FIG. 2).
, the second yarn feeder 16 is in a non-yarn feeding position (see the same figure) in which the hook 16b faces below the mounting frame 11;
In this state, the gear 16a is rotated approximately 90 degrees by the required operation.
When rotated counterclockwise (as shown in the figure), the second yarn feeder 16 is displaced to a yarn feeding position where the hook 16b faces below the horizontal portion of the knitting yarn guide section 14a, and accordingly, the first yarn feeder Reference numeral 15 is for displacing the hook 15b to a non-yam feeding position in which the hook 15b faces below the mounting frame 11.

Reference numeral 17 denotes a swinging cam having a cam portion 17a formed on the lower surface of one side and a passive piece 17b on the other side.It is rotatably supported approximately at the center on the mounting frame 11, and the passive piece 17b is mounted on the mounting frame. 1
The rear side of the sliding plate 19 (on the left side in FIG. 2) is slidably mounted on a support piece 18. face upwards,
In addition, the cam part 17a is brought into contact with the rear end of the sliding plate 19, and the tension spring 20 is always stretched between the cam part 17a and the mounting frame 11. It is energized to stand by at the position (solid line in the figure).

The sliding plate 19 has a front end (the right end in FIG. 2) bent downward at a right angle to form an engaging piece 19a, and a substantially U-shaped recessed part 19b is formed on one side of the front end. , is normally biased by a tension spring 21 stretched between the rear end and the mounting frame 11, and engages the engaging piece 19a with a stopper 22 provided on the mounting frame 11 to move the rear end above the It is waiting at the original position (solid line in FIG. 2) where it comes into contact with the cam portion 17a.

Reference numeral 23 denotes a rotary body having pins 23a and 23b on both the left and right sides, and the central portion is pivotally supported between the sliding plate 19 of the mounting frame 11 and the second yarn supplying body 16.

24 is a substantially cross-shaped retaining claw member, which is attached to the rotating body 2.
One of the engaging claws 24a is superimposed on and coaxially rotatably supported on the other engaging claws 24a, and faces each other.

24b is brought into contact with the pins 23a and 23b, and
The other engaging claws 24c and 24d protrude outward from between the pins 23a and 23b.

The engaging claw member 24 is always connected to the engaging claws 24c, 24.
Either one of b is attached to the engaging piece 19 of the sliding plate 19.
It is facing a.

A rod 25 connects the rotating body 23 and the second yarn supplying body 16, 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 16. It is pivotally supported on a fixed connecting piece 26.

Now, as the main and sub-carriages 5 and 6 (hereinafter simply referred to as carriages) slide, the actuating piece 10 raised on the arm 9 engages the driven piece 17b from the right side in FIG. rotates counterclockwise (as shown in the figure) against the tension spring 20 as the carriage continues to slide;
The cam portion 17a causes the sliding plate 19 to slide in the right direction in the figure against the tension spring 21.

Then, when the sliding plate 19 slides in the above direction, the square engaging portion 19a engages with the engaging claw 24c, and the retaining claw member 24 rotates counterclockwise (FIG. 2). As the rotating body 23 rotates, as the sliding plate 19 continues to slide, at least the engaging piece 19a and the engaging claw 24c
The pin 23a engages with the recessed notch 19b before the engagement with the pin 23a is released, and the rotating body 23 and the engagement claw member 24 continue to rotate.

Then, the passive piece 17b and the sliding plate 19 are in the operating position (second
When the rotating body 23 and the engaging claw member 24 are displaced in the direction shown by the chain line in the figure, the rotating body 23 and the engaging claw member 24 rotate half a rotation, thereby moving the connecting piece 26 to the rod 25.
, the second yarn feeder 16 moves counterclockwise in the figure 2 by 9.
It rotates by 0° and is displaced from the non-yarn feeding position to the yarn feeding position, and in conjunction with this, the first yarn feeding body 15 is displaced from the yarn feeding position to the non-yarn feeding position.

When the engagement between the activation piece 10 and the driven piece 17b is released as the carriage continues to slide, the swing cam 17 and the sliding plate 19 are returned to their original positions by the flexible springs 20 and 21. At the same time, the engaging claw 24d faces the engaging piece 19a.

Then, the carriage reaches the required position and turns over, and the activation piece 10
When engaged with the passive piece i7b from the direction opposite to the above,
The swing cam 17 rotates the cam portion 17a in a direction that separates it from the sliding plate 19, and the sliding plate 19 remains at its original position without sliding, so the first and second yarn feeders 15.16 do not operate. .

Further, the carriage is reversed and the actuating piece 10 is changed back to the passive piece 17.
b from the right side in FIG. 2, the sliding plate 19 slides in the same way as in the previous case, the engaging piece 19a and the engaging claw 24d engage, and the rotating body 23 continues the half rotation. At the same time, the connecting piece 26 is pulled by the rod 25, and the second yarn feeder 16 is rotated clockwise (as shown in the figure), displaced from the yarn feeding position to the non-yarn feeding position, and interlocked with this. As a result, the first yarn feeder 15 is displaced from the non-yarn feeding position to the yarn feeding position.

Thus, in connection with the sliding movement of the carriage, the first and second
The yarn feeding bodies 15, 16 are automatically and alternately controlled to be displaced into a yarn feeding position and a non-yarn feeding position.

Next, as shown in FIG. 8, the yarn feeder body 8 is rotated at both ends in opposite directions to extend upward in a manner that crosses the knitting yarn at a required interval for introducing and introducing the knitting yarn. The base body 8a becomes
The lower edge forms a yarn feeding lower, and one of the two ends is integrally extended upward in the direction in which the knitting yarn enters and exits the yarn feeding lower, that is, diagonally upward to the right in the figure. A knitting yarn lead-in/out guide part 8b is provided, and the other of the two ends is integrally extended in the opposite direction to the direction in which the knitting yarn is introduced into and out of the yarn feeding lower, that is, in the upward direction of the figure. A knitting yarn change section 8 is composed of a diagonal section 8c' that gradually slopes upward and a substantially horizontal section 80'' extending integrally from this diagonal section 80'.
c.

The yarn feeder body 8 connects the horizontally bent upper end 3b' of the knitting yarn guide section 8b to a generally horizontal U-shaped window hole 9a that is opened on one side on the upper surface of the arm 9. It faces above the front edge (Fig. 10), and the above distinction is made at part 80
'' parallel to the upper opening surface of the window hole 9a, and its tip is slightly deeper than the vertical plane at the right inner edge of the window hole 9a (FIG. 10), that is, on the upper surface of the opening edge of the window hole 9a of the arm 9. They are fixed to the lower surface of the connecting arm 9 with opposing protrusions spaced apart from each other at a required interval.

Next, the effect of this embodiment having the above-mentioned configuration is as follows: The knitting yarn M19M2 involved in the knitting, which is set in a known knitting yarn take-up spring (not shown), is automatically alternately moved in relation to the sliding of the car 1. The case of conversion will be explained with reference to FIGS. 4 to 10.

Now, the first yarn feeder 15 is in the non-yarn feeding position, and the second yarn feeder 16 is in the non-yarn feeding position.
is in the yarn feeding position, the knitting yarn M1 is held by the hook 15b of the first yarn feeding body 15 and is in a non-feeding state, and the knitting yarn M2 is released from the second yarn feeding body 16 and moved to the yarn feeding lower It is in the yarn feeding state, and knitting is currently being carried out by this knitting yarn pigeon (
Figure 4).

Now, as the carriage moves forward (in the direction of the arrow in FIG. 4), the actuating piece 10 engages with the driven piece 17 in the direction of the arrow in FIG. When moving, the first and second yarn supplying bodies 15.
16 are rotated in the same predetermined direction (approximately half of the set amount), and while the second yarn feeder 16 is rotating as described above, the knitting yarn guide section 1
The knitting yarn M2 guided by the hook 16b is held by the hook 16b, and the knitting yarn M□ is guided by the knitting yarn lead-in/out guide part 8b and enters the yarn feeding lower (FIGS. 5 and 6).

When the swing cam rotates by a set amount as the carriage continues to slide, the first yarn feeder 15 is displaced to the yarn feeding position, the second yarn feeder 16 is displaced to the non-yarn feeding position, and the knitting yarn is moved to the non-yarn feeding position. M
19M2 cross, the knitting yarn M1 is inside the yarn feeding lower, and the upper part is behind the diagonal section 80' (Fig. 7), and the knitting yarn M2 is inside the yarn feeding lower. The upper part is on the front side of the diagonal part 80', and the double knitting yarn is M19M.
The lower parts of 2 are twisted together (Figure 7.8.9).

Next, the carriage moves forward to the required position, then reverses and moves backward, and when the swing cam 17 reaches the position where it has rotated by a set amount, it is in the yarn feeding state as shown in FIGS. 8 and 9. Between the knitting yarns M1 and M2, which are divided into a non-feeding state and a non-feeding state, a section 8C'' intervenes to distinguish these two knitting yarns M19M2, and as the carriage continues (backwards), Oblique section 80
'The lower inclined edge of knitting yarn M2 is in sliding contact with the front side (9th
(on the left side of the figure), thereby guiding both knitting yarns M19
M2 is changed by the knitting yarn changing section 8c.

Since the hook 16b of the second yarn supplying body 16 is holding the required part of the knitting yarn M2, the knitting yarn M2 is released from the twisted state with the knitting yarn M□ and is fed. It is derived from the lower (Fig. 10).

At least while the knitting yarn M2 is being led out from the yarn feeding lower, the knitting yarn M1 is located at the rear side of the diagonal portion 8C' (on the right side in FIG. 9), and is thereby regulated from being displaced to the front side. Thread M
The knitting yarn M0 remains at the yarn feeding lower without being guided out following the yarn M0, and knitting is performed using this knitting yarn M0 (FIG. 10).

Further, as the carriage moves backward, the actuating piece 10 engages with the passive piece 17b from the opposite direction to the forward movement,
The swing cam 17 rotates, but in this case the sliding plate 19 remains at its original position without sliding, so the first and second yarn feeders 15, 16 do not operate.

Thus, the above-mentioned knitting yarn M1 ? involved in the knitting as the carriage reciprocates? M2 is automatically converted.

In the above embodiment, a case was explained in which a knitting yarn change part was formed in a yarn feeder provided on an arm connecting the main and sub-carriages in a so-called double-plate knitting machine. However, the knitting yarn change portion may be formed in a yarn feeder provided on an arm of a carriage in a so-called single-plate knitting machine.

As is clear from the above, according to the present invention,
The knitting yarn consists of a diagonal part that gradually slopes upward in the direction opposite to the direction in which the knitting yarn is taken out and in and out of the yarn feeder body that forms the yarn feeder, and a generally horizontal section that extends integrally from the diagonal part. The yarn changing section is in a yarn feeding state in which the arcuate tip of the section is placed above the upper surface of the arm at a required distance through the window hole of the arm, and is introduced into the yarn feeding port. Since it is made to protrude at a position intervening between the knitting yarn of First, the above-mentioned section intervenes to distinguish between the knitting yarn in the feeding state and the knitting yarn in the non-feeding state, and then the diagonal section intervenes to distinguish between the two knitting yarns. Release the twisted state of the knitting yarn,
This knitting yarn changing section allows the knitting yarn in the yarn feeding state and the knitting yarn in the non-feeding state to be changed to the position where it is introduced into the yarn feeder and the device consisting of the yarn feeder. , the above two knitting yarns are not introduced into the yarn feeder or led out from the yarn feeder while being entangled with each other, and the desired yarn feed conversion can be reliably performed, and the structure is also improved. It has the advantage that it is extremely simple and can be easily and inexpensively manufactured by integrally providing the diagonal part and the knitting yarn changing part consisting of the dividing part on the yarn opening body.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a side view showing the arm and yarn feeder set in a knitting machine, with the arm and yarn feeder sectioned vertically at the center, and Fig. 2 is a side view showing the negative side of the cover. FIG. 3 is a front view showing the relationship between the arm and the yarn feeder; FIGS. 4.5 and 7.10 are plan views showing the operating state; FIG. Figures 8 and 9 show the relationship between the yarn feeder body and the knitting yarn, Figures 6 and 8 are front views, and Figure 9 is a side view with a part of the yarn feeder body omitted. 5.6... Main, sub-carriage, 9... Arm, 7... Yarn feeder, 8... Yarn feeder body, 15, 16... ...1st and 2nd yarn feeder, 8c, 8C
', 8c''...Knitting yarn change part, oblique part, distinction is part, 9a...Window hole.

Claims (1)

[Scope of utility model registration request] An arm detachably attached to a carriage that slides on the needle bed is equipped with a yarn feeder body in which a yarn feeder is formed, and by introducing the knitting yarn into the yarn feeder, the yarn feeding position can be adjusted depending on the yarn feeding state. and by displacing the plurality of yarn feeders, which are displaced to the non-yarn feeding position, to the yarn feeding position or the non-yarn feeding position, respectively, by leading out the knitting yarn from the yarn feeder to bring the knitting yarn into a non-yam feeding state. In the yarn feed converting device for a knitting machine that converts a plurality of knitting yarns involved in the knitting, the yarn feeder body rotates both ends in opposite directions to create a required interval for introducing the knitting yarns. The yarn feeder is formed by the lower edge of the base body which is once crossed and extended upward, and one of the two ends is connected opposite to the direction in which the knitting yarn enters and exits the yarn feeder. A knitting yarn change part consisting of a diagonal part that extends in the direction and gradually slopes upward, and a part that extends substantially horizontally from the diagonal part integrally with the diagonal part and has an arcuate tip. The difference is that the arc-shaped tip of the part is located above the upper surface of the arm at a required distance through the window hole of the arm, and that the knitting yarn is introduced into the yarn feeder and the knitting yarn is led out from there. A knitting yarn change mechanism at a yarn feeding change position of a knitting machine, characterized in that the mechanism is protruded to a position intervening between the knitting yarn and the knitting yarn.