DE507670C - Ring device for flat knitting machines - Google Patents

Description

Ringing device for flat knitting machines The ringing devices for flat knitting machines are divided into two groups, i. in those, which one Have a number of levers that alternately range the thread to be processed bring a so-called catcher nut, and 2. in those that have so many thread guides use when ring threads are present. Both groups have disadvantages because the first group can only produce double-row stripes, since the lever changes can only ever take place on the side of the machine on which the ringing device is located is located. The second group is expensive because each ring thread has a thread guide with the associated rail and runners claimed for itself, and in addition, the The number of ring threads should not exceed 6 to 8.

The present invention enables curling on flat knitting machines with an almost unlimited number of threads and this both in two rows and in one row. It does this because the ring threads of hook needles are kept out of action which at any point on the needle bed outside the row of knitting needles in which a needle bed are used and the respective desired thread in their release caused by a jacquard going up, this the open Feed the nut of the thread guide and later again from the knitting lock, in the inoperative position be withdrawn. Fig. I shows a side view of a knitting machine with a device according to the present invention.

Fig 2 is the left side of the knitting machine viewed from above.

Fig. 3 shows the action of the lock on the left side of the \ adelbettes and Fig. 3a the side view of the needle bed with the lock, and Fig. 4. shows the action of the lock on the right side of the needle bed.

In the needle bed b (Fig. I), in which the knitting needles are known to run in their grooves, outside the row of needles, left and right, at intervals of z. B. two grooves (Fig. 2) hook needles hl, hz, h3, etc. used, which move up and down in the grooves just like the knitting needles 1a by being detected by the lock x, y, z on the feet. The hooks of the hooks = needles hl, h @, h3 etc. each hold a thread, namely in the lowest position of their foot (f " Fig. I) so that these threads cannot be caught by the thread guide foot F. Now any Hook needle, e.g. h ;, (Fig. 2), pushed up, the relevant thread (r3, Fig. I and 2) loosens from the hook of the hook needle and thus gets into the area of the thread guide nut F (Fig. I) which is too open on one side (Fig. 2) and grasps the thread r3. The empty hook needle h3 is then withdrawn by the withdrawing lock part x (Fig. 2) and remains in this inoperative position until it is back in the area of the The lock is pushed, pushed up by this and thereby withdraws its thread from the nut F when the thread guide nut is reversed.

The side parts x and z (Fig. 3, 3a) are offset and the feet of the Hook needles protrude further from the needle bed than those of the knitting needles, so that the knitting needles can be pulled off properly while the hook needles are deeper than these are pulled down.

The process of curling with the device according to the invention is as follows. B. from left to right. As described at the beginning, the hook needle h3 (Fig. 3) has let go of its thread, and the same is thus in the area of the thread guide foot F, so that it grips and knits the ring thread r3. At the end of the stroke on the right, the nut F rotates through 180 ° and grasps the ring thread r3 again. Should z. B. on the right (Fig. .4) another ring thread come into action, an empty hook needle, z. B. h,;, so far by a jacquardvor direction j (Fig. 2) brought into working position that the foot f of the lock x, y, z can be moved. The hook of this hooked needle thereby grips the ring thread r3 and pulls it downwards through the lock part x, outside the area of the nut F. Shortly after this, again at the end of the carriage stroke, the nut F turns around Co '(Fl, Fig , q.), and the ring thread rs slides out of the nut F.

The rotation of the open nut can be done, for example, as follows: The cannon h (Fig. 2) on the slide s moves the slide g on which the Gear z. and the nut F which is in engagement with it and which carries the open nut Gear z2 are attached. The small gear z, further engages in the one in the slider g sliding rack z3 a. At the end of each slide stroke, the rack hits z3 to the fixed stop a, thereby shifts and rotates the gears z1 and z. and thus also the open nut F. The way of the rack z3 is like this measured that the nut has rotated by 180 ° as a result of its displacement.

When reversing the slide (from right to left), to to feed a thread on the right side of the thread guide nut F, any thread Hook needle advanced through the jacquard so that it is with her foot can be detected by the lock. She is then pushed up by the lock, loses the thread and thereby leaves it in the area of the nut F. which grips it and processed. The hook needle in question is then deep-drawn from the lock, as described at the beginning.

One can thus either right or left any one of the relevant The side located thread and the same on the other side either let it be recorded again or put another ring thread into action. the The number of colors used in a piece of goods is therefore despite use a single thread guide extremely large, corresponding to the number of used Hook needles, in any case considerably larger than has been achieved so far.

Claims (2)

PATENT CLAIMS: i. Ringing device for flat knitting machines, thereby marked that the ring threads are kept out of action by hook needles, which at any point on the needle bed outside the row of knitting needles into the a needle bed are used and the respective desired thread in their through a jacquard device caused rise to release this the open nut of the thread guide and later again from the cord lock to the inoperative position be withdrawn. 2. Ringing device for flat knitting machines according to claim i, characterized in that the open thread guide nut at the end of the Slide stroke is arranged to be rotatable by i 8o °.