CS222735B1 - Locking system of the double-cylinder circular knitting machine - Google Patents

Abstract

A cam system for circular double- cylinder knitting machines is provided for controlling sliders (3), swingable intermediate selector jacks (2) and selector jacks (1). When knitting only ground loops the upper ends (21) of the jacks (2) are swung out of their tricks so that they are controlled by a raising cam edge (91) to lift the jacks (2), the sliders (3) and the needles into the clearing position. When knitting both ground loops and tuck loops the selector jacks (1) are either lifted by a raising cam (131) or not according to a pattern. Lifting of the jacks (1) by the raising cam (131) results in the jacks (2) being lifted by a raising cam (10) so as to lift the sliders (3) already raised by a cam (9), and the needles into the clearing position. Otherwise the jacks (1) and (2) are not lifted and the sliders (3) lifted by cam (9) pass onto a tuck cam (4) into the tuck position. <IMAGE>

Description

BACKGROUND OF THE INVENTION The present invention relates to a lock assembly of a two-cylinder circular knitting machine for the production of sock or the like, which controls the stitches, intermediate tracks and guide pins of the needles and allows knitting of the weave in the crotch portion of tights. The invention then provides embodiments of locks for higher knitting speeds. SUMMARY OF THE INVENTION The invention is based on the fact that the pulling lock of at least one knitting system in the path of the swiveling upper gripping ends of the intermesters is a lifting cam edge for raising the needles to the closing position. closing position.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cam system of a double, cylindrical circular knitting machine for the manufacture of sock goods and the like for controlling the guide rails of needles, intermediate tracks and stoppers.

A two-cylinder circular knitting machine known for hosiery is known, where the crotch is knitted with ties, which makes the fabric more stretchable. A lock system is also adapted to this requirement, where before the retractable locks of the knitting systems, where the grip handles are formed, grip locks and lifting locks are arranged in the upper knee path of the guide sinkers for lifting to the closing position. A radially extending catch lock is arranged below the lift lock to the fixed position and is followed by a fixed catch lock, which is so arranged, after the fixed lift lock to the lock position.

This lock arrangement has the disadvantage that it occupies quite a lot of space on the needle cylinder arc in the path of the upper knees of the guide sinkers, thereby reducing further locks and thus adversely affecting the course or inclination of their working edges and hence the knitting speed.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned drawbacks, which is essentially achieved by providing the cam assembly with a lifting cam edge for raising the needles to and below the path in advance of the knitting system. cradles of the interstices lift lock also for raising the needles to the closing position.

The arrangement according to the invention is shown in an exemplary embodiment on a part of the lock assembly in the drawing.

The known double-cylinder circular knitting machine for the manufacture of sock goods is provided with a needle cylinder (not shown) in which the longitudinal grooves accommodate the tracks 1, the intermediate tracks 2 and the guide sinkers 3 for receiving the needles (not shown). To control them, there is provided a knitting lock system in two knitting systems: To illustrate the invention, only a portion thereof is shown, in front of a retractable lock of one knitting system (not shown).

In the path of the upper knees 31 of the guide sinkers 3, a fixed catch lock 4, a pulling lock 5 and the alignment locks 6, 7 for the return knitting function and the guide ring 8 are arranged. In the path of the lower knees 32 of the sinkers 3 9. Further, there is a lifting cam 91 formed on the locking ring 90, which serves to lift the hooked upper catch ends 21 of the intermediate trays 2. Furthermore, there is a recess 92 in which the upper catch ends 21 of the intermediate trays 2 engage and follow. The lifting cam 91 and the lifting lock 10, respectively, cause the intermediate cams 2 and the needles to be raised to the closing position. Underneath the recess 92 is a radially infeed button 11 for crimping the lower ends of the intermediate tracks 23 into the grooves of the needle cylinder. An upper lock ring 12 and a lower lock ring 13 with a lifting ramp 131 are provided for controlling the track 1.

The function of the lock arrangement described above is as follows.

When knitting in which only the stitches are knitted, the needles are selected by means of a push-button 11 which is pushed onto the needle cylinder and crimps the lower ends 23 of the intermediate tracks 2. The upper gripping ends 21 of the intermediate tracks 2 hook behind the lifting cam edge 91 The jacks 3 and the needles, respectively, are raised to the closing position. The lift lock 9 lifts the guide pins 3 by the lower butts 32 so that their upper butts pass into the channel between the catch lock 4 and the alignment lock

7.

When knitting, where the stitches and loops are formed, the selection of needles from the notch patterning device 1 (not shown) is made. Button 11 is out of operation and lift lock 9 is in operation. The stops 1, which are selected from the patterning device, are lifted by the lifting ramp 131 of the lock ring 13. By their action, the associated intermediate tracks 2 are lifted, which are further lifted via their knees 22 by the lifting lock 10. the sinkers 3 are lifted by their lower knees 32 by the lifting lock 9. Behind the lifting lock 9 the raised intermediate tracks 2 act on the guide sinkers 3 and lift them together with the needles into the closing position. The selected needles are then knitted in the eyelet knitting system.

Stoppers 1 which are not selected from the patterning device do not lift the intermediate tracks. 2 to the lift lock 10. The respective guide sinkers 3 are then lifted by the lift lock 9 into the channel between the catch lock 4 and the alignment lock 7 and, via the upper knees 31, the guide sinkers 3 or needles are lifted by the catch lock 4 of the catch position. The needles then knit in the knitting system of the loop.

In the second knitting system, only the stitches are knit. If the strii is provided with three knitting systems, the above-mentioned locks are provided with two knitting systems. The main advantage of the invention is that the present arrangement shortens the circumferential length on which the locks are selected for knitting the loop handles, or

Claims (3)

A two-cylinder interlocking system for sock knitting or the like for controlling needles, intermediate tracks and stoppers, comprising, prior to the retracting lock, at least one * knitting system in the path of the upper inter-track interlocking pivots (21). (2) a lifting cam edge (91) for raising the needles to the closing position and below this cam edge (91) in the path of the knees (22) of the intermediate supports (2) a lifting lock (10) also for raising the needles to the closing position. 2. The interlock system of item 1, you INVENTION characterized in that in front of the lifting locking edge (91) for. bringing the needles into the closing position is provided with a radially infeed button (11) for crimping the bottom ends (23) of the intermediate trays, wherein a recess (92) is formed above the button (11) in the locking ring (90) adjoining said lifting cam edge (91). Lock system according to one of Claims 1 and 2, characterized in that above the lifting lock (10) of the intermediate trays (2) there are guide sinkers in the path of the upper nodes (31). (3) a fixed catch lock (4) is provided.