CZ119896A3 - Lock system - Google Patents

Abstract

The proposed cam system of a double-cylinder circular knitting machine serves for control of needle jacks (P) and patterning stoppers (V). In the patterning stopper (V) path there are arranged a first lifting cam (7), being placed in front of a closing cam (3) of the needle jacks (P), and a second lifting cam (8), being placed in front of a catching cam (4). Both the lifting cams (7, 8) are arranged in radially slidable manner.

Description

(57)

The lock system of the two-cylinder circular knitting machine is used to control the needle sinkers (P) and the pattern trackers (V). In the pattern track (V), a first lift lock (7) upstream of the lock lock (3) of the needle sinkers (P) and a second lift lock (8) upstream of the catch lock (4) are arranged. The two lifting locks (7, 8) are arranged radially infeed.

CZ 1198-96 A3

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Technical field

BACKGROUND OF THE INVENTION The present invention relates to a lock system of a knitting machine, in which, prior to the retractable lock of the needles of the at least one knitting system, a shutter is located in the rotational direction and followed by a catch lock. .

BACKGROUND OF THE INVENTION

It is known that on double-cylinder knitting machines for the production of sock goods, in particular coarse, large knitting strokes are required to form stitches from pulling to closing and the subsequent switching of needles between the needle cylinders. These conditions limit the number of knitting systems on the machine. Furthermore, this is affected by the diameter and division of the needle cylinder. The machines may also be provided with color yarn insertion systems where each conductor lays a corresponding color yarn. This means that a needle with the same number of colors as these systems is knit for each revolution of the needle cylinders, ie one line of knitted fabric. Thus, there is a need for a selector which selects the needles, i.e., the pattern paws for picking up the different colored yarns, preferably without installing additional selector units.

SUMMARY OF THE INVENTION

The device according to the invention is characterized in that a first lift lock upstream of the shutter lock and a second lift lock upstream of the catch lock are arranged downstream of the selection unit, at least the first lift lock being arranged radially infeed.

BRIEF DESCRIPTION OF THE DRAWINGS

The device according to the invention is shown in the drawing in Fig. 1.

DETAILED DESCRIPTION OF THE INVENTION

The known double-cylinder circular knitting machine for the production of sock goods is provided with known (not shown) double-needle needles controlled by needle sinkers P. Below the needle sinkers P are placed pattern traces V. For explanation of the invention They are a retractable lock 1 and a retractable lock 2, in front of which a closing lock 3 and then a catch lock 4 are arranged in the direction of rotation S between these locks 2 and 1 a channel k is formed for the upper knees P1 of the sinkers P raised to the catch level. . There is also a lift lock

5. A selection unit 6 is provided in the path of the patterning tracks V, provided with selection levers acting on the pattern wheels VI. A first lift lock 7, which is radially infeed, and a second lift lock 8, which is also configured as radially infeed, are arranged in the path of the lower guide elbows V2. A sliding lock 9 is arranged in the path of the upper guide elbows V3.

The operation of the device described above is as follows. In conventional knitting, the selector unit 6 presses the patterning tracks v into the grooves of the needle cylinder J according to the program. The first lift lock 7 is switched on and lifts the patterning tracks V which have not been pressed and which lift the corresponding needle sinkers P onto the lock Thus, the needles are raised to the closing position, the yarn is then loaded into them and retracted by the pulling lock 2 and the pulling lock 1, and new stitches are formed on them. The pressed patterning tracks V are then not raised and the respective needles do not form stitches.

In knitting of stitch patterns or stitch patterns, i.e. patterns, wherein sections of stitch stitches and normal stitches or normal stitches of one color and normal stitches of another color are adjacent in one row, the function of the device is as follows. The first lift lock 7 is off and the second lift lock 8 is on. The unlocked patterning tracks V are lifted by track B after the second lift lock 8, so that the corresponding upper knees P1 of the needle sinkers P are lifted by track B1 and the second catch lock 4. The needles are lifted to the catch position and then the stitches 1 form. When knitting cut patterns, the knitting system knits loops of a different color than the previous ones, with the underlying yarns of the previous system and the yarns of this system being trimmed in the yarn guide function. The knitting needles in the previous system do not knit here.

In the context of the invention, the second lift lock can also be configured as a fixed lock. An advantage of the invention is that one selection unit can solve the choice for both cut and conventional patterns.

Claims (1)

PATENTOVf NÁROKf A lock assembly of a two-cylinder circular knitting machine, in which the closing lock and the catch lock are located in the direction of rotation before the retracting lock of the needles of the at least one knitting system, between which there is a channel for characterized in that a first lift lock (7) upstream of the lock lock (3) and a second lift lock (8) upstream of the catch lock (4) are arranged downstream of the selector unit (6) in the pattern track (V), wherein at least the first lift lock the lock (7) is arranged radially infeed.