CZ9601794A3 - Circular knitting machine needle selection apparatus - Google Patents

Abstract

The invented machine needles (1) are represented by short-butt needles (100), medium-butt needles (101) and long-butt needles (102). Further short-butt stoppers (200) long-butt stoppers (201) and swing stoppers (3) with heels (300) represent its stoppers (2). In the needle (1) path there are arranged kinking locks (7) and closing locks (8) that can be radially shifted in two working positions. Locks being in path of the swing stoppers (3) are provided with lifting edges (41) for lifting needles (1) into a catching position.

Description

Technical field

The invention relates to a circular knitting machine device for selecting needles for knitting partial rows of cam heel resp. the toe of the sock goods, which is equipped with needles with short, medium and long knees, needle sticks with short and long knees, swinging sticks with knee nodes for locks with locks and dials to which selector units are assigned and which is provided in the needle path retracting and closing cams radially infeed to two operating positions, in the needle track path by lifting cams for lifting the needles to the closing position, which are radially infeed to two working positions.

BACKGROUND OF THE INVENTION

There is known a small diameter circular knitting machine for the production of sock goods equipped with six knitting systems, which is adapted for knitting socks with a cam heel consisting of partial and complete rows. The needles selected by needle stoppers and other underlying needles are used for knitting the heel, and the locks for controlling them are different in each knitting system, also because of their operation by means of system drums and saucers. The greatest limitation of this system is the course of the sprays for their control, which must suit the withdrawal of needles and stoppers and control of the locks. These weaves severely limit the variability of the entire system and allow essentially only one basic design of the heel of the heel, since the individual knitting systems are specialized. The disadvantage of this solution is therefore that a fundamental change in the program and the physical design of the locks is necessary when changing the process of knitting the heel.

A further disadvantage is that the partial-row non-knitting needles are pulled under all retracting locks that are not infeed in systems in which they do not knit during the rotation of the cylinder. This results in a deterioration in the quality of the knitted fabric in the instep of the article.

It is an object of the present invention to overcome these disadvantages.

The essence of the invention

The beam according to the invention is characterized in that the group of long needle knuckles exceeds the group of long needle knuckles, wherein the retractable needle lock is in one position infeed to the middle and long knuckles and the lock in the needle path is in one position infeed to the long knuckles and that the locks in the track of the swinging stoppers are provided with lifting edges for raising the needles to the catching position.

According to a preferred embodiment, the lifting cams for actuating the needle trackers are radially infeed and located beneath the lock cams in the needle path.

BRIEF DESCRIPTION OF THE DRAWINGS

The radiation according to the invention is shown in the drawings, in which FIG. 1 shows the arrangement of the locks for controlling the needles and the underlying stoppers; FIG. 2 shows the distribution of the needle nodes, needle stoppers and swinging stoppers;

DETAILED DESCRIPTION OF THE INVENTION

The known single-cylinder circular knitting machine for the production of sock goods is provided with a known needle cylinder (not shown) in which the needles 1, needle stoppers 2, swivel stoppers 3 and underselection stoppers (not shown) are arranged. patterning systems.

The needles 1 are provided with short butts 100 (FIG. 2), middle butts 101 and long butts 102. wherein the long butts 102 are in one group and the mid butts 101 are in two groups adjacent to the group of long butts 102. the short nodes 200 and the group of long nodes 201 extending below and centrally symmetrical to the long nodes 102, wherein the group of long nodes 102 of the needles 1 is larger. The knees 300 of the swiveling tracks 3 are of one height, with the lifting edges 41 of the lock ring 4 arranged for each system in their path for lifting the needles 1 into the catching position. In the path of the needle tracks 2, in addition to the lifting of the edge 41, radially infeed lifting locks 5 for lifting the needles into the closing position are also provided for each system. Furthermore, there is provided a locking ring 6 for pulling the needle stoppers 2 back from the position where they are lifted by the lifting lock 5.

In the path of the needles 1, the machine is provided with retractable cams 7, which are arranged in a direction either to all the butts 100, 101, 102, or only to the middle 101 and the long butts 102 of the needles 1.

Furthermore, radially infeed closing locks 8 are provided in front of the retracting locks 7. The closing locks 8 are infeed to all or only the long nodes 102 of the needles 1. The described locks are arranged identically in all six knitting systems in which the cam heel is knit.

The function of the device described above for knitting a partial heel cam heel is as follows. The choice of needles 1 is made in each knitting system starting at the fifth such that the fifth knitting system knits the complete row R5 (Fig. 3), the fourth knitting system knits the short partial row R4, the third system knits the long partial row R3. the second system a short partial line R2, the first system a long partial line R1, the sixth system a short partial line R6 and again the fifth knitting system then the second complete line R5.

In the fifth knitting system, all of the swinging stoppers 3 are selected and locked with their knees 300 and are lifted by the lifting edge 41 by the track 10, so that they raise the needle stoppers 2 and the needles X together to the catching level. The closure lock 8 is pushed to all the pins of the needles 1 and takes all the needles 1 along the path 11 to the closing position. The needles 1 are then retracted by the retracting lock 7 to form a row R5.

In the fourth knitting system, the retracting lock 7 is moved over the short nodes 100, wherein the closing lock 8 is turned off and the lift lock 5 is slid over the short nodes 200. The selection unit selects only the group A of the pendulous trackers 3 corresponding to the number of needles 1 for short row R4. They are therefore swinging stoppers 3 corresponding to a group of long knees 201 of the needle tracks 2 and from each side of this group two short butts 200. The corresponding swinging tracks 3 are, after selection, lifted by the lifting edge 41. At the same time. by the lifting lock 5 and thus the corresponding needles 1 into the closing position by way

Also, the needles 1 corresponding to the short butts 200 are also raised, but only to the catching position, the butts of these catch needles 1 passing through the path 13. All the selected needles 1 are then retracted by the retract lock 7. R4 and the lateral needles 1 then catch loops to secure the yarn ends of this row. Similarly, the remaining short lines R2 and R6 in the second, respectively, are confused. in the sixth system.

In the third knitting system, the retract lock 7 is also above the short butts 100 of the needles 1, the closure lock 8 is pushed over the central butts 101 of the needles and the lift lock 5 is turned off. The selector unit selects, via the select track, a group B of the swing track 3 corresponding to the number of needles 1 for the long partial row R3. They are therefore pendulum stoppers 3 corresponding to a group of long nodes 102 of needles 1 and two central nodes 101 on each side of the group. The corresponding swinging stoppers 3 are, after selection, lifted by the lifting edge 41 by the track 10. The needles 7 corresponding to the four mentioned central knees 101 are lifted directly to the holding height by the track 13. The remaining needles and long knees 201 are lifted from the swinging tracks 3 8 to the closing position. All the selected needles 1 are then retracted by the retract lock 7, the needles 1 corresponding to the long knees 102 knit a long partial row R3 and the remaining four needles 1 then the stitch eyes to secure the thread ends of that row.

The remaining long row R1 of the cam heel in the first system is then knit as described above.

The advantage of the arrangement of the locks according to the invention is that it is possible to alternate the execution of partial rows for knitting the heel of the heel only by changing the program and further significantly improving the quality of the instep part of the goods. 7 in systems where they are not mistaken.

Claims (1)

Circular knitting machine device for selecting needles for knitting partial rows of cam heel resp. the sock's toe cap is equipped with needles ^ which are short, medium and long (1), Οΰο, ίΰ *, knee (s), 'needle stopper (s) ^ / with short and long knee (s) < These are provided with retractable and shut-off locks in the needle path, radially infeed into the working positions, and in the path of the needle stop jacks for picking up the needles. to a closing position which are radially infeed to two operating positions, characterized in that the group of long knuckles (102) of the needles (1) exceeds the group of long knuckles (201) of the needle pusher (2), wherein the retracted «needle lock (7)» ) is in one position infeedable to the central nipples (101) and the long nodes (102) and the closing lock (8) in the needle path (1) is in one position infeed to the long nodes (102) and that the locks in the pivot track ( 3) are provided with lifting edges (41) for raising the needles (1) to the gripping position. and which is e? Device according to claim 1, characterized in that the lifting cams (5) for actuating the needle pusher (2) are radially infeedable and located below the lock cams (8) in the path of the needles (1).