JPS5927415B2 - Warp supply device in circular stockinette knitting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an apparatus for knitting a tubular weft stockinette with a circular stockinette knitting machine, by supplying and adding warp threads to the weft stockinette, and thereby creating a sewing pattern on the weft stockinette. The method of supplying warp threads has been improved so that warp threads can be supplied to a larger number of knitting needles more accurately than the conventional method.

The structure and operation of this invention will be explained based on examples.

In FIGS. 1 to 4, 1 is a cylinder of a circular stockinette knitting machine, 2 is a knitting needle, and 3 is a bat.

Reference numeral 4 denotes a warp guide support, which is located above the cylinder 1 and rotates concentrically with the cylinder 1 and at the same speed and in the same direction.

6 is a circular rail fixed to the support 4; 7 is a short arc-shaped rail component; 8 is a stepped connection end thereof; 9 is a joint; 1
Reference numeral 0 indicates a connecting screw, and every other joint 9 is fixed to the support with screws 10.

Reference numeral 11 denotes a slider, which is slidably fitted onto the rail 6 between the joints 9 and 9.

12 is a spring that urges the slider 11 in the direction of rotation of the support 40; 13 is a warp thread path with an L-shaped upper surface that is attached to the upper surface of the slider 11 so as to be able to freely swing around a shaft 14; Its tip passes through the head of the knitting needle 3 and projects outward.

15 is a warp guide hole, and 16 is a spring that pulls the thread path 13 toward the rear of the knitting needle 3, and is connected to the slider 11.

Numerals 17 and 18 are stop pins provided on the thread guide 13 and the slider 11, which prevent the thread guide 13 from swinging inward due to the spring 16. The warp guide holes 15 are located behind the knitting needles 2.

Reference numeral 19 indicates a stop pin provided on the slider 11 facing the outside of the base of the thread guide 13 in order to regulate the outward swing angle of the knitting needles 2 in the thread guide 13; Warp guide hole 1
The warp threads are guided to the knitting needles 2 through 5.

21 is a support member extending to the plywood of the knitting machine on the outside of the cylinder 1, 22 is a lifting cam fixed to the inner surface of the support member, and 23 is a V mounted horizontally with a shaft 24 directly above the cam 22. The swinging arm 25 on the lower surface of the shape is a warp thread path operating rod fixedly fixed to the swinging arm 23 in a vertical manner, and swings in a direction perpendicular to the radial direction of the cylinder 1 to operate the thread path. It is designed so that it can protrude into the locus that No. 13 passes and can be dislocated under the same locus.

26 is a spring that pulls the swinging arm 23 downward, and 27 is a stop pin that prevents the swinging arm 23 from descending at a position where the lower end of the swinging arm 23 contacts the upper surface of the raising cam 22.

To create vertical stripes on a stockinette fabric by supplying two types of warp yarns of different colors and qualities to the knitting needles 2 with the highest possible efficiency without reducing the number of original stitches of the knitting machine. For this purpose, first and second yarn guide mechanisms A, B and corresponding first and second yarn guide operating mechanisms C, D are installed, and a distance between the first and second knitting needles E, F is installed. is in place.

The thread guide mechanisms A and B are arranged in parallel on the inside and outside of the thread guide support 4 at approximately the same position, and are arranged in two stages, upper and lower, so that they can move along the rails 7.7 without colliding with each other. is set up.

The thread guide operating mechanisms C and D are arranged in two stages, upper and lower, at positions corresponding to the thread guide mechanisms A and B.

Further, the knitting needle gap E has a butt 3 on the upper side corresponding to the position of the upper yarn guide operating mechanism, and the knitting needle gap P has the butt 3 on the lower side corresponding to the position of the lower yarn guide operating mechanism.

The knitting needle gaps E and F are each composed of several knitting needles 2 and are appropriately arranged with respect to each other.

The above device functions as follows.

The cylinder and the thread guide support 4 are subjected to rotation in the direction of the arrow in FIGS. 1 and 3.

All or a few of the knitting needles 2 in the knitting needle interval E are selected by an appropriate needle selection mechanism, and their butts 3 are guided to the raising cam 22 of the first yarn path operating mechanism C and advance on the upper surface thereof.

In the process of this movement, it collides with the swinging arm 23 of the mechanism C and pushes it up, and as shown in FIG. It is swung from the low position shown by the solid line to the vertical high position shown by the solid line, and its upper end is projected into the locus along which the thread path 15 of the first thread guide mechanism A passes.

Therefore, the thread guide 15 is prevented from advancing by the thread guide operating rod 25, and swings from the position indicated by the phantom lines in FIG. The knitting needle 20, which is moving upward, is pulled out from behind to the front and fed to the needle hook in a manner that runs in the opposite direction to the direction in which the knitting needle 2 moves.

During this time, the slider 11 of the first thread guide mechanism A slides on the rail 7 in the opposite direction in a relative sense.

The butt 3 of the knitting needles 2 of the first knitting needle group E is the first yarn guide operating mechanism C.
After passing through the position of the swinging arm 23, the swinging arm 23 and the thread guide operating rod 25 swing down from the solid line device in FIG. It deviates downward from the thread path 130 passing trajectory.

Thereupon, the yarn path 15 is released from the stopped state and swings from the solid line position in FIG. 1 to the phantom line position by the force of the spring 16, thereby drawing the warp threads 20 from the front side of the head of the knitting needle 2 to the rear side.

At the same time, the slider 11 moves the rail 7 by the force of the push spring 12.
is pushed in the direction of its movement and returns to its original position.

In the second knitting needle group F, the butt 3 of which the knitting needles 2 are held in a lower position is guided to the raising cam 22 of the second yarn guide actuating mechanism at the lower stage.

Thereafter, this mechanism D and the second yarn guide mechanism B operate in the same manner as the first mechanism C2A to supply the warp yarns 20 to the knitting needles 2 of the second knitting needle group F.

Between the first and second knitting needles E and F, the supplied warp threads are used to knit the loops interposed between the courses of the ground stockinette, or to knit the loops merged with the loops of the ground stockinette course while knitting the loops of the ground stockinette course. Continuing in the meridional direction, the meridian stalk is composed.

Figures 5 and 6 show the first and second thread guide mechanisms A and B described above.
An example of a modification of the structure is shown below.

A groove 35 in the easy direction of the cylinder 1 is provided on the upper surface of the slider 34, into which a straight rod-shaped sliding thread path 36 is inserted and covered by a cover plate 37.

The tip of the yarn path 36 projects outside the slider 34 and has a warp guide hole 38 there.

An inverted swinging arm 39 and a short arm 40 attached thereto are attached to the outer end of the upper surface of the slider 34 by a shaft 28.

Then, the protrusion 29 of the thread guide 36 engages in the gap 28 formed between the arms 39 and 40 at the parts perpendicular to the thread guide 36, and the thread guide 36 moves forward and backward by the swinging of the swinging arm 39 through this. It is supposed to be done.

30 is a thread guide pull-in spring connected to the short arm 40, 31 is a thread guide movement size regulating hole provided in the cover plate 37, and 32 is a thread guide 3.
6, which protrudes into the regulation hole 31 described above.

33 is a rail fitting hole for the slider 34.

The action of this structure is that the swing arm 39 is prevented from advancing by the thread guide actuating rod 25 in FIGS. 1 to 3, and at the same time is caused to swing outward. is pulled outward, and the warp threads 20 guided by it are fed to the knitting needles 2.

As is clear from the operation of this embodiment, in this invention, the warp yarns are fed by moving them in parallel along the front surface of the knitting needle row.

Therefore, regardless of the number of rising knitting needles to which the warp threads are simultaneously supplied, the warp threads are supplied equally close to the total number of needles, resulting in the effect of knitting a seamless warp knitting pattern.

In this invention, the warp thread path operating rod itself swings to prevent the warp thread from progressing, pull it outward, release the blocking, etc. It is simple and has the effect of being able to reliably achieve the desired results without causing any malfunctions.

[Brief explanation of drawings]

The drawings show embodiments of the invention. Fig. 1 is a plan view, Fig. 2 is a vertical sectional view, Fig. 3 is a front view, Fig. 4 is a side view of the knitting needle, and Figs. 5 and 6 are plan views showing modified examples of the thread guide mechanism. It is a sectional view taken along the a-a line. 1...Cylinder, 2...-m needle, 3...
... Bat, 7... Annular rail, 11.
...Slide, 12...Spring, 13...
... Warp thread path, 15 ... Warp guide section, 20
...Warp, 25...Warp thread guide operating rod, 26...Spring.

Claims (1)

[Claims] 1 Equipped with a warp thread path and a warp thread path operating rod, the warp thread path is freely movable on an annular rail that rotates concentrically and at a constant speed above the cylinder, and is controlled by a spring in the rotational direction of the rail. The warp guide section is supported in a biased state and is configured to be able to move inward or outward of the cylinder; freely swing in a direction crossing the radial direction of the cylinder on the outside of the cylinder, and
It is installed vertically and is biased by a spring to take a lower position below the path of the warp yarn path, and the butt of the knitting needle in the cylinder comes into contact with the lower end of the cylinder and passes through it, causing the warp yarn to pass through. It is configured to be pushed up to the locus along which the thread path passes to prevent the warp threads from progressing along the thread path, and to displace the warp thread guide portion from the inside to the outside of the knitting needle row to supply the warp threads to the knitting needles. The warp feeding device in a circular stockinette knitting machine.