CZ133796A3 - Method of knitting eye courses and a circular knitting machine for making the same - Google Patents

Abstract

The invented circular knitting machine is provided with lifting edges (91, 94) for lifting needles (2) into a closing position in both directions (S1, S2) of rotation that are placed outside the space between loop-forming locks (5, 6) of a reversible knitting system. Lifting edges (92, 93) for lifting needles into gripping positions are then placed between the loop-forming locks (5, 6).

Description

(57)

The eyelet lines of the wedge-knitted heel are knitted so that the initial eyelets in both directions (S1, S2) of the knitting are knitted as catch eyelets (O1, 02). The locks (92, 93) for raising the needles to the catching position are located in the space between the retractable locks (5, 6) of the knitting system for reversible knitting.

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BACKGROUND OF THE INVENTION The present invention relates to a method of knitting a loop Chad wedge-knitted heel resp. spike by taking and adding stitches on a circular knitting machine.

Further, the invention relates to a circular knitting machine for the manufacture of sock goods with needles and stoppers and equipped with a knitting system for return knitting with selector units for selecting needles in both directions of rotation and lifting locks for lifting the needles into working positions »

BACKGROUND OF THE INVENTION.

Small diameter circular knitting machines for the manufacture of sock goods are known where wedge-shaped heel or toes are formed by selecting needles without the use of conventional ejectors and needle pickups. In this type of knitting, the instep needles, which are not involved in the knitting, but also the removed needles pass in the lower retracted position during the first phase of knitting. As a result, when the needle cylinder rotates in the direction of rotation, the stretched thread does not wrap around the stems of raised non-working needles, and the stitches of the knitted fabric are not well-knit. In the heel resp. the toe leads to gaps between the eyelets and thus to the undesirable appearance of the knitted fabric, as well as to the reduced quality of the heel respectively. the spike itself.

The object of the invention is to overcome this disadvantage.

SUMMARY OF THE INVENTION

The method of knitting is characterized in that the initial stitches of the individual stitch lines in both directions of knitting are knitted as catch stitches.

The circular knitting machine is characterized by locks for lifting the needles in both directions of rotation to the closing position located outside the space between the retracting edges of the retractable knitting system locks and the needles for lifting the needles in both directions of rotation.

According to a preferred embodiment, a first selector unit is provided for the direction of rotation as in rotary knitting in front of a needle for lifting the needles into the closing position and a second selector unit is arranged before the locks for lifting the needles to the catching position.

According to a preferred embodiment, the machine is provided in a knitting system for reversible knitting with a third selection unit arranged for dialing in the Dbou directions of rotation arranged in a rotational direction opposite to the rotational direction of the rotary knitting in front of the lock for lifting the needles into the catching position. a second lock for raising the needles to a height corresponding to the height of the needle lock to the closing position for the direction opposite to that of the rotary knitting.

Overlook Jahcázkft in the drawings

The invention is illustrated in the drawings, in which: Figure 1 shows the arrangement of locks for controlling needles and stoppers in a knitting system for reversible knitting showing the course of working and non-working needles of the needles in the direction of rotary knitting; Fig. 3 is a diagram of the rows in the heel showing the stitch and smooth stitches.

DETAILED DESCRIPTION OF THE INVENTION

The known single-cylinder circular knitting machine for the production of sock goods is provided with a needle cylinder X (FIG. 2), in which longitudinal grooves accommodate needles 2, needle stitches 2, swivel stitches 4 and known selection stakes not shown.

The machine is equipped with a knitting system for reversible knitting, which includes left 5 and right retractable lock i, which are both radially infeed and fixed center lock Z- Further in the track of needle tracks 2 is a tightening ring S and in the track of swinging tracks 4 lifting ring 2 ·

The lifting ring 2 is provided with a lifting edge 91 for lifting the needles 2 to the closing position located in front of the right retracting lock. Still, the lifting ring 2 is provided with a lifting edge 92 for lifting the needles 2 to the gripping position located between the left 5 and the right retracting lock 1. both radially infeed.

Said lifting edges 91 and 92 are adapted to function for the Si direction (FIG. 1) of rotary knitting. In front of the lifting edge 91, a first selector unit (not shown) associated with the selector stoprflm and a second selector unit also associated with the selector pawls located at the location of the vertical line 2 (not shown) are arranged at the vertical flange fi.

For the opposite direction of knitting S2 to the rotational direction, the lifting ring 2 is provided with a lifting edge 93 for lifting the needles 2 into a hold position, located mirror-image to the lifting edge 92 in the space between the retracting locks 5 and S. for insertion of the pawls of the swinging stopper fi into the grooves of the needle cylinder even during their pulling by the needle stoppers 3 controlled by the pulling ring g.

The machine is equipped with a third selector unit arranged in front of the lifting edge 93 at the location of the vertical θ. At the same time, however, the third selector unit is arranged in front of the lifting edge 94 arranged in a mirror-image to the 5plate and serving to raise the needles 2 to the catch level. The third selection unit is adapted to be selected in both the rotation directions S1 and S2.

The locking ring g is provided with pulling edges S1, 82, 95 and Sfi for pulling the needle tracks 5 from the upper position where they have been raised by the swinging paws fi to the lower selection level, the pulling edges 31, 83 serving the direction of rotation S1 and pulling edges 32 Sfi for the direction of rotation 32, so that the needle pusher 5 also retracts the swinging paws fi located in the grooves of the needle cylinder 1 below them, the nipples of the swinging paws fi being inserted into the grooves of the needle cylinder 1 by obliquely chamfering the disturbing edge 25. they are mirror-like to each other and are formed above the lifting edges 93 and 2fi. The tightening edges 31, 32 are also mirrored to each other and functionally adjoin the lifting edges 22, 25 or are arranged therebetween. The backs of the retracting locks 5, 3 then serve to lift the needles 2 into the closing position, so that overall, the locks prD for lifting into the closing position are located outside the space between the retracting edges of the retracting locks 5, 3, respectively. the lifting edges 22, 25 are located inside between the retracting locks 5 and g. The lifting edge 26 lifts the needles 2 to a height that corresponds to the clearance height of the left retracting lock 5 that lifts the needles 2 in the pivoting direction 32 to the closing position.

The pins of the needles 2 are divided into long 22 and short 25, wherein the long knees 22 correspond to the needles for the heel-knitting heel, the short butts 23 then the _instep needles _6, which do not participate in heel knitting or knitting. toe knit.

The operation of the device described above is as follows. First, the retracting cams 5 and jsou are moved away from the needle cylinder X by a distance at which only the long needle nodes 22 ' cooperate with them and all needles 2 are retracted to the retracted position. Thus, when the needle cylinder X is further rotated, the vamp needles 2 with the short butts 25 in the lower retracted position pass through the track 250. The section of the working needles 2 is outside the locks of the knitting system for reversible knitting. At the first revolution in the direction S1, the first selector unit selects a second long-knee needle 2 from the work group. Thus, the swiveling sinker 4 corresponding to the first needle 2 of the work group is not lifted by the lifting edge 91, and the respective needle 2 passes under the retract lock 3 along the path 220 to the second selector unit which selects the respective selector. The respective first working group needle 2 raised by the needle lock 3, i.e. its knee 22, goes along the path 221 in the catch level to the retract lock 5, where the catch loop QX (FIG. 3) of the first row SX is formed, this line is secured to the previous eye in the column. The retractable lock 5 further retracts the other needles 2 of the workgroup whose working nodes 22 extend along the path 222. where it was lifted by the lifting edge 91 and the back of the right retractable lock 6. Thus, smooth eyelets f1 are formed. This needle is passed under the retracting locks 5 and 6 through the path 220.

Behind the left retract lock 5, in the direction SX, the second selection unit is selected for the second time. raised by the lifting edge 24 to the catching level those needles 2 with long knees 22 that will knit the smooth stitches Q in the second row R2 at the direction of rotation S2. Thus, the first two needles 2 of the seeding group are not selected and the last needle 2 of the working needles group is selected, as it will be selected as an error.

When changing the direction of rotation to the direction of direction 2, the first needle 2 of the group of working needles 2 is selected by the third selector unit so that it is raised by the lifting edge 93 to the catch level, its knee 22 passing through the path 223 to the right retract lock. loop Q1 of line R2. Subsequent working needles already raised in the previous rotation in direction 51 are lifted by the back of the left retract lock 5 to the closing position and pass through the track 224 to the right retract lock 6 where they are retracted to form smooth stitches □ of the second heel line R2. The last two needles of the 2 working groups for the direction S2 resp. the first two needles 2 for the direction 51 are not selected and their nodes 22 pass through the path 220. As a result, the two smooth stitches Q in the row E2 are removed. In this way the stitches in the next rows of the heel are gradually taken up. The gripping loops Q1 always knit first in the respective rotation direction 51 or £ 2, together with the loops they follow in the post, cause the knitted fabric to be integral and thereby replacing the known yarn twist at the dead center position of the needles. .

After knitting the appropriate. the number of rows of the first half of the wedge heel proceeds to the stitch adding phase in the rows of the second half of the wedge heel. In each row of EZ, RS and others, two needles 2 from the non-working group 2 are drawn at the beginning of the needle working group section 2 and two needles 2 are taken from the end of the needle working group 2. using the following procedure.

First, the line EZ is knit in the direction of 2-2. Thus, in the direction of 11, the third selector unit retrieves two needles 2 from the front of the working needles and adds one needle 2 to the end of the working needles section. In the working needles 2, one needle 2 is added and at the end two are removed. Upon passing the beginning of the group of working needles 2 towards 52, at the beginning a third needle 2 of the non-working needle 2 is brought to the beginning, which is lifted by the lifting edge 95 into the catching position. The needles 2 of the working group are then retracted by the right retract lock £ so that the beginning of the line R7 forms a false b

catch loop 02 and behind it first smooth and next. Line. Thus, R7 has the same number of stitches as the previous row of the first half of the heel, but the needle working group is offset by two needles in the direction 32 relative to the last row of the first half of the heel.

Next, the line SS is knitted in the direction 31, where the first and second selector units bring three needles 2 at the beginning of the needle working group 2, the first one on the retract lock 5 knits the grip 02 and the second and third needles 2 smooth stitches 0. In the working section of the needles 2, the first selector unit takes up two needles 2, thus not picking them up, so that the result is the addition of one needle 2 over the row BZ, thus knitting one extra loop.

In this way, the operation of the selector units and locks is continued as described above. As a result, one needle 2 is added in each row, with the stitches Q2 formed at this stage joining with the stitches Q1 knitted in the first phase of the heel, as it is located in the subsequent columns of the knit, as shown in FIG. respectively. on the same needles 2, thereby providing a quality connection of the two heel parts.

Of course, the product tip is also confused with this procedure. Technical equivalents, in particular locks, may be used in the technical design.

Claims (4)

PATENT O V * CH (?) 2 G - cc -i 2 Z V> O. '' C o • U CM - ro o CCK 1 OS 7 'm to <O l R <A of Y 00 1. A method of knitting loops of wedge-shaped heel or » Spike by picking and adding stitches on a circular knitting machine, characterized in that the initial stitches of the individual stitch series (R1, R2, ... R7, R0) in both knitting directions (SI, 32) are knitted as catch stitches (01, 02). Circular knitting machine for the manufacture of sock goods equipped with needles and stoppers and equipped with a knitting system for return knitting with 5 needle selection units in both directions of rotation and lift locks for lifting the needles into working positions for the knitting method according to claim 1, characterized by locks for lifting the needles (2) in both directions (S1, .32) by rotating to a closing position located outside the space between the retracting game of the retractable locks (5, 6) of the return knitting system and the locks (92, 93) both directions of rotation to the catching position located between the retractable locks (5, 6) of the return knitting system. Circular knitting machine according to claim 2, characterized in that for the rotation direction (S1) as in rotary knitting, a first selector unit is arranged in front of the locks (91) for raising the needles (2) into the closing position and in front of the locks (92). lifting the needles (2) to the catching position is provided by a second selector unit. Circular knitting machine according to Claims 2 and 3, characterized in that in the knitting system for reversible knitting, a third selection unit arranged for selection in both directions of rotation arranged in the direction of rotation (32) opposite to the direction of rotation (S1) during rotation knitting in front of the lock (93) to lift the needles into the catching position, and a second lock (94) for lifting the needles (2) to a height corresponding to the height of the lock (5) of the needles (2) positions for the direction (S2) opposite to the direction (S1) in rotary knitting.