CZ288632B6 - Circular knitting machine needle selection device - 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, which is equipped with needles with short and long knees, swiveling shoe shanks for engaging locks and selector tracks to which selector units are assigned, and which has retracting and closing locks radially infeed in two working positions in the needle path; The needle locks are lifted by locks for raising the needles to the closing position, which are radially retractable 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 chosen 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 then 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 cam heel, since the individual knitting systems are specialized. The disadvantage of this solution is, therefore, that in the change in the process of knitting the heel of the heel, a fundamental change of the program and the physical design of the locks is necessary.

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 section of the article.

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

SUMMARY OF THE INVENTION

The device according to the invention is characterized in that the group of long knuckles of needles extends beyond the group of long knuckles of needle stoppers, 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 in the track of the swinging stoppers, they are provided with lifting edges for lifting the needles into the catching position.

According to a preferred embodiment, the lifting cams for actuating the needle tracks are radially infeedable and disposed beneath the lock cams in the needle path.

Overview of the drawings

The device 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;

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AND

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 stems 2, pendulum stems 3 and underscored selector tracks (not shown) are attached. patterning systems.

The needles 1 are provided with short butts 100 (FIG. 2), middle butts 101 and long butts 102, the long butts 102 being in one group and the mid butts 101 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 longitudinally symmetrical to the group of 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 cam ring 4 for lifting the needles 1 into the catching position for each system in their path.

In the path of the needle track 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 a locking ring 6 for stitching the needle tracks 2 back from the position where they are lifted by the lifting lock 5.

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

In addition, radially infeed closing locks 8 are provided in front of the retracting locks 7. The closing locks 8 are movable to either 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 bag 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 through the track 10, so that they also lift the needle stoppers 2 and the needles 1 together to the catch level. The closing lock 8 is pushed to all the pins of the needles 1 and brings all the needles 1 under the path 11 into 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, with the closure lock 8 turned off and the lift lock 5 being slid over the short nodes 200. The selector selects only the group A of the pivoted traces 3 corresponding to the number row R4. Thus, they are the swinging stoppers 3 corresponding to the group of long butts 201 of the needle tracks 2 and two short butts 200 on each side of the group. The corresponding swinging tracks 3 are lifted by the lifting edge 41 at the same time. the needles 1 corresponding to the short butts 200, but only to the catching position, are also raised, the butts of these catching needles 1 passing through the path 13. All the selected needles 1 are then retracted by retracting The needles 1 corresponding to the group of long knees 201 form a partial short row R4 and the side needles 1 then catch eyes to secure the yarn ends of that row. Similarly, the remaining short lines R2 and R6 in the second, respectively, are confused. in the sixth system.

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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 J 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 1 corresponding to the four mentioned central knees 101 are lifted directly to the catch height by the track 13. The remaining needles 1 with long knees 201 are lifted from the swinging tracks 3 and then lock 8 to the closing position. All of 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 lock arrangement 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 (2)

PATENT CLAIMS 1. 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 (1) with short, medium and long knees (100, 101, 102), needle stoppers (2) with short and long knees (200, 201), swinging stoppers (3) with knees ( 300) for engaging locks and guide tracks to which selector units are associated, and which is provided in the needle path with retracting and closing locks (7, 8) radially sliding into two working positions, in the needle track path (2) by lifting locks (2) 5) for raising the needles (1) into a closing position, which are radially infeed to two working positions, characterized in that the group of long nodes (102) of the needles (1) exceeds the group of long nodes (201) of the needle pusher (2), the retractable lock (7) of the needles (1) is in one position inflatable to the central nodes (101) and the long nodes (102) and the lock lock (8) in the needle path (1) is in one position infeed to the long nodes (102) and that lock y in the path of the swinging track (3) are provided with lifting edges (41) for raising the needles (1) to the catching position. 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).