KR19980087080A - Sliding needles for knitting machines - Google Patents

Abstract

The needle (1) has a hooked end (3) and a slider (2) with a heel (4), a beak (5) and a shoulder to support the stitch. The slider moves relative to the needle to open and close the hook with its beak and move each stitch with its beak and shoulder. The slider has a U-shaped cross-section and a stepped end forming the beak for carrying a stitch. For part of its length from the beak the slider recess is wide enough to permit the passage of a needle with a stitch on it.

Description

Sliding needles for knitting machines

SUMMARY OF THE INVENTION The present invention is directed to a slider-type needle for a knitting machine comprising a needle equipped with a barb and a slider equipped with butts, noses and switch bearing shoulders. The nose of the slider closes and opens the barb of the needle to transmit needle stitching so that it can be displaced with respect to the needle for later stitching by the nose and shoulder.

Shouldered or piston-type needles have long been known.

1924 J.F. The industrial first slider type needle produced by WILCOMB has a needle in the slider. The configuration is made not to transmit the needle stitches by the slider but only to block the barbs of the needles.

Patents US Pat. Nos. 4,043,153 and 5,186,026 and patent applications DE 31 51 150, 32 20 049 and 4 231 015 disclose slider-type needles, in which the actual needles in the form of sliders displace the piston, which closes the barbs of the needle. The use of a piston to close the barbs of a needle makes it possible to eliminate the latch of a conventional needle, thus obtaining a more rigid needle and reducing the stroke of the needle than when needle stitches are formed. The piston also makes it possible to transfer the stitches from one end of the needle to the needle of the opposite end. Configurations with needles in the form of pistons and sliders are adopted by other manufacturers. The needle is always below the piston, except in the configuration according to patent US 4,434,627, in the piston with a U-shaped profile, the needle is below.

In order to effect needle stitch transmission, the slider needle sometimes has a fixed attachment part on the side of the needle (DE 36 24 038).

Also known are composite needles with side springs and needles with double sliders.

In general terms, with the piston needles of the prior art, the needle stitches transmitted are always received by the barbs of the needles. As a result, if needle stitches are already present in the barbs of the needles, it is impossible to distinguish the next transmission or knitting practice for each of these needle stitches.

In other words, for needle stitch transfer from a certain number of needles to adjacent needles laterally, the operation is commonly regarded as punching, and a needle or punch is placed on the needle to transfer another needle. It is required to use auxiliary parts to pick up the needle sweat.

It is an object of the present invention to produce the possibility of punching without slider-type needles, in particular auxiliary parts and auxiliary punches, which provide new knitting prospects.

The slider needle according to the present invention is defined by a slider in a U-shaped profile in which the needle is stacked, split at its end region comprising the nose, so that the opposite needle or slider passes to perform needle stitch transfer or punching. It is possible to do

In a flat knitting machine with two vertically displaceable parts, the slider needle according to the present invention is capable of carrying out a punching function on the needles of opposite parts as well as transmitting the known needle stitches. The displacement of parts can be simplified. Therefore, the auxiliary part and its punch are unnecessary.

Because the slider straddles, one or more needle stitches can later be removed from the slider together, while another needle stitch can remain on the slider fixed to the high piston. Needle stitches present on the slider can be transferred to the slider or into the barb of the same part needle or to the opposite part. Thus, it is possible to take one and the same needle to separate the stitches and to operate them in another way.

Thus, in the latter part, beyond the length of the needle starting from the nose of the needle, the inner width is generally greater than the thickness of the needle so that the needle stitches or needle stitches located inside the slider are not damaged, passing through the needle stitches or needle stitches located on the barb of the needle. It becomes possible.

The displacement required for the various operations of the slider needle according to the invention is very small in size. This makes it possible to reduce the length of the cam holder, reduce the path of the carriage and increase the fabric production.

In summary, the slider needle according to the present invention is:

a) receiving needle stitches on the slider, while having at least one needle stitch in the barb of the needle corresponding to the receiving slider;

b) receiving needle sweat in the barb of the needle;

c) accommodating the needle stitches or needle stitches present in the barbs of the needles that are likely to be transferred or crocheted to the chow, at least one needle stitch in the barbs of the needles corresponding to the transmitting slider ;

d) It is possible to use the slider as the stitching configuration of the same part by means of an alternative member or punching to displace one needle stitch.

1 is a side view at a forming position.

2 is a side view of the slider only.

3 is a slider top view in the direction of the arrow of FIG.

4 is a cross-sectional view taken along line IV-IV of FIG. 2.

Fig. 5 shows the slider-type needle at the position where needle stitches are ready for transmission.

6 shows a slider-type needle at the needle stitch transmission position.

Fig. 7 shows the slider needle in the punching position by the needle slider in the opposite portion.

The slider needle shown is composed of a needle 1 and a slider 2 sliding inward.

At the end of the needle 1, the barbs 3 are mounted. In the present embodiment, since the needle 1 is assumed to be driven as a key, there are no butts. However, one or more butts may be provided to be driven by the cam of the cam holder.

The slider 2 has the needle 1 superimposed and has a U-shaped profile (FIG. 4). At the rear, the slider 2 is equipped with a butt 4 for driving it, with a nose 5 at the front, the upper part being positioned below the horizontal behind the slider, forming a shoulder 6. On the nose 5, the side of the slider narrows again along the seam line 15 to round the sliding surface against the stitches. These side edges are also rounded between the end of the nose 5 and the bottom edge 8 of the slider. Behind the shoulder 6, the U-shaped profile is suspended on a certain length, forming a passage 7 behind the slider. The part beyond the slider length starts from the nose 5 and the average width of the slider's U-shaped profile is generally larger than the thickness of the needle 1. 1, 5, 6 and 7 schematically show the profiles of two opposite parts 9, 10 of a flat knitting machine with two parts.

In FIG. 1, the barb 3 of the needle 1 is closed in such a way that the yarn 11 is caught by the needle's barb by the nose 5 of the slider.

5 shows the slider needle in the position prepared for needle sweat transmission. The needle 1 is in a high position. Slipping on the needle, the yarn 12 rises above the nose 5 of the slider.

In FIG. 6, the position of the needle 1 is inverted. When the slider 2 is raised, the needle stitches 12 come into contact with the slider 6 of the slider. The needle 1 ′ of the opposite part 10 can engage with the slider 2 and pull up the needle sweat retained by the slider 2 so that it can transfer the needle stitch and later pass through its path 7. do. In this position, the barbs 3 of the needle 1 are shown as U-shaped parts of the slider. Needle stitches located on the barbs 3 of the needles allow engagement with the sliders, without damaging the play between the needles 1 and the sliders 2.

FIG. 7 shows a slider-like needle in the same position as in FIG. 6, instead the opposite needle 1 ′ engages the slider and the corresponding slider 2 ′ engages the slider 2. When the slider 2 is turned upside down, needle stitches located on the nose of the slider 2 are located on the slider 2 '. Therefore, here, the slider 2 'functions as a punch. The component 10 is held on the needle 1 of the component 9 or the slider 2 of the component 9 and the needle stitches held by the slider 2 'in view of transferring the component 10 onto the needle. It is displaceable from side to side for the purpose of transmitting. Thus offers all possibilities.

As disclosed in the description of the possibility of the presence of holes and in EP 0 362 126, the comb transmission is likely to have a slider.

The displacement required for the various operations of the slider needle according to the invention is very small in size. Accordingly, the length of the cam holder can be shortened and the carriage path can be shortened to increase the fabric productivity.

Claims (3)

A slider (1) with a barb (3) mounted thereon and a slider (2) with a butt (4), a nose (5) and a needle perspiration bearing shoulder (6), the slider being the barb of the needle by the nose of the slider; A slider type needle for a knitting machine displaceable relative to a needle to close and open the needle and later to deliver the needle sweat by the nose and shoulder, the slider having a U-shaped profile with the needle nested therein, And the end region comprising the nose is divided (7, 15) to allow opposite needles or to pass through a slider to effect needle stitch transfer or punching. 2. Needle according to claim 1, characterized in that the slider (2) is beyond the length starting from the nose and the average inner width is greater than the thickness of the needle, so that it is possible to pass through the needle stitches located on the needle. Needle according to claim 1, characterized in that the back of the slider (2) is provided with a blocking portion (7) behind the shoulder (6).