CZ289128B6 - Circular knitting machine - 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

Circular knitting machine (57)

The machine is equipped with lifting edges (91,94) for lifting the needles (2) to the closing position in both directions (S1, S2), which are located outside the space between the retracting locks (5,6) of the return knitting system. The lifting edges (92,93) for lifting the needles into the catch position are then positioned between the retracting locks (5, 6).

Circular knitting machine

Technical field

The invention relates to a circular knitting machine for the manufacture of sock goods provided 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.

The locking system of these machines is designed symmetrically provided with known triangular retractable locks. This arrangement does not allow the needles to be lifted into the shut-off or shut-off valve. gripping positions other than in the space between the edges of the triangular locks, thereby greatly narrowing the space for threading the needles. In particular, the number of thread guides in the knitting system is thus limited, which limits the color patterning options regardless of whether some retract locks are turned off.

SUMMARY OF THE INVENTION The object of the invention is to provide knitting of the aforementioned heel on machines which are not provided with symmetrical locks.

SUMMARY OF THE INVENTION

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

According to a preferred embodiment, a first selector unit is provided for the rotational direction as in rotary knitting, in front of the lifting edge for lifting the needles to the closing position, and a second selection unit arranged in front of the lifting edge for raising the needles to the catching position.

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

BRIEF DESCRIPTION OF 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. 3 shows a diagram of the rows in the heel showing the stitches and smooth stitches.

-1 CZ 289128 B6

DETAILED DESCRIPTION OF THE INVENTION

The known single-cylinder circular knitting machine for the production of sock goods is provided with a needle cylinder 1 (FIG. 2), in which the longitudinal grooves accommodate needles 2, needle stitches 3, pendulum stitches 4 and known non-displaced selection stitches.

The machine is equipped with a knitting system for reversible knitting, which comprises a left 5 and a right retractable lock 6, which are both radially infeed and a fixed central lock 7. Further, in the needle track path 3, it is a tightening ring 8 and in the swivel track path 4 9.

The lifting ring 9 is provided with a lifting edge 91 for lifting the needles 2 to the closing position located in front of the right retract lock 6. Further, the lifting ring 9 is provided with a lifting edge 92 for lifting the needles 2 into the catch position located between the left 5 and the right retract lock 6. which are both radially infeed. Said lifting edge 91 for raising the needles 2 to the closing position and the lifting edge 92 for raising the needles 2 to the hold position are adapted to function for the direction S1 (FIG. 1) of the rotation of the rotary knitting. In front of the lifting edge 91 for raising the needles 2 to the closing position, a first selector unit (not shown) associated with the selector tracks is arranged at the vertical point A, B.

For the opposite direction of rotation S2, the lifting ring 9 is provided with a lifting edge 93 for lifting the needles 2 into the catching position, mirror-mounted to the lifting edge 92 for lifting the needles 2 into the catching position in the space between the retracting locks 5 and 6. an edge 95 for inserting the pawls of the swinging stoppers 4 into the grooves of the needle cylinder 1 as they are pulled by the needle stoppers 3 operated by the pulling ring 8.

The machine is equipped with a third selector unit arranged in front of the lifting edge 93 for raising the needles 2 to the gripping position at the vertical C. However, at the same time, the third selector unit is arranged in front of the lifting edge 94 arranged mirrored to the vertical C. corresponding to the edge height of the retractable lock 5 of the needles 2. The third selector unit is adapted for selection in both directions S1 and S2.

The locking ring 8 is provided with pulling edges 81, 82, 83 and 84 for pulling the needle stitches 3 from the upper position where they have been lifted by the pivoted pullers 4 to the lower selection level, the pulling edges 81, 83 serving the direction S1 and the pulling edges 82 84 for the direction of rotation S2, so that the needle stoppers 3 also retract the pivoting stoppers 4 located in the grooves of the needle cylinder 1 underneath, the nipples of the pivoting stoppers 4 being inserted into the grooves of the needle cylinder 1 by obliquely chamfering the interference edge 95. they are arranged mirror-like to each other and are formed above the lifting edges 93 and 94 for lifting the needles 2 to the gripping position. The tightening edges 81, 82 are also mirror-like to each other, functionally connected to the lifting edges 92, 93 for raising the needles 2 to the gripping position or to the gripping position. are arranged between them. The ridge edges of the retractable locks 5, 6 then serve to lift the needles 2 into the closing position so that, overall, the edges for raising the needles 2 to the closure position are located outside the retractable edges of the retractable locks 5, 6, The lifting edge 94 lifts the needles 2 to a catching position corresponding to the clearance height of the left retracting lock 5, which lifts the needles 2 in the direction of rotation S2 to the closing position.

The needles 2 are divided into long 22 and short 23, the long butts 22 corresponding to the needle-knitting section 2 of the heel knitting, the short butts 23 to the instep needles 2, which do not participate in the heel knitting respectively. toe knit.

The operation of the device described above is as follows. First, the retracting cams 5 and 6 are moved away from the needle cylinder 1 to a distance in 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 1 is further rotated, the vamp needles 2 with the short butts 23 in the lower retracted position pass through the track 230. The working needle section 2 is outside the locks of the knitting system for reversible knitting. At the first rotation in the direction of rotation S1, the first selector unit selects a second long-knee needle 2 from the work group. Thus, the pendulum stop 4 corresponding to the first needle 2 of the work group is not lifted by the lifting edge 91 to lift the needles 2 into the closing position and the respective needle 2 passes under the retract lock 6 through track 220 to the second selector unit. The stopper 4 is lifted by the lifting edge 92 to lift the needles 2 to the gripping position. The respective first working needle 2 is raised by the lifting edge 92 for lifting the needles 2 into the catching position, i.e. its knee 22. goes along the path 221 in the catching level to the retract lock 5 where the catching eye Ol (Fig. 3) is formed R1, and thereby this line R1 is secured to the previous stitch in the post. The retractable lock 5 further retracts the other needles 2 of the work group whose working knees 22 extend along the track 222 where it was lifted by the lifting edge 91 to lift the needles 2 into the closing position and the ridge edge of the right retractable lock 6. wherein the last needle 2 of the working group is not selected and therefore no loop is formed here, as shown in FIG. 3. This needle 2 passes under the retracting locks 5 and 6 through a path 220.

Downstream of the left retract lock 5, in the direction of rotation S1, the third selection unit is still selected for the second time. lifted by the lifting edge 94 to lift the needles 2 into the catching position those needles 2 with long nodes 22 that will knit smooth stitches O in the second row R2 at the direction of rotation S2. Thus, the first two needles 2 of the sewing group and the last needle 2 of the group of working needles 2 are not selected, since they will be selected as the sewing needle.

When changing the rotation direction S1 to the direction S2, the first needle 2 of the group of working needles 2 is selected by the third selector unit so that it is lifted by the lifting edge 93 to lift the needles 2 into the catching position. where a catch loop Ol of line R2 is formed. The following working needles 2, already raised in the previous rotation in the direction S1 by the lifting edge 94 to lift the needles 2 into the hold position, are lifted by the ridge edge of the left retract lock 5 into the closure position and pass through track 224 to the right retract lock 6 where they are retracted smooth stitches O of the second heel line R2. The last two needles 2 of the working group for the direction of rotation S2 respectively. the first two needles 2 for the direction of rotation S1 are not selected and their nodes 22 extend through the path 220, thereby removing the two smooth stitches O in the row R2.

In this way, the stitches in the next rows of the heel are gradually taken up and the wedge-shaped heel bag is formed. The gripping stitches O1 always knit first in the respective direction S1 or S2 of rotation, together with the stitches to which they follow in the post, cause the knitted fabric to be integral and, in fact, replacing the known thread winding at dead centers around the needles in the instep position.

After the appropriate number of rows of the first half of the wedge heel has been knitted, the stitching phase of the rows of the second half of the wedge heel is transferred. In each row of R7, R8 and others, two needles 2 from the non-work group 2 are drawn at the beginning of the needle working group section 2 and two needles 2 are picked up at the beginning of the needle working group 2. following procedure.

First, the line R7 is confused in the direction S2. Thus, in the direction S1, the third selector unit picks up two needles 2 from the front of the working needles and adds one needle 2 to the end of the working needles section 2. Thus, when the direction of rotation is changed, the situation is reversed. at the end two taken. As the beginning of the group of working needles 2 passes in the direction of rotation S2, one needle 2 out of the non-working needle is initially fed by the third selector and is lifted by the lifting edge 93 to lift the needles 2 into the catching position. The needles 2 of the working group are then retracted by the right retract lock 6 so that the beginning of the line R7 is formed by a false catch loop 02, followed by the first smooth and the next. Therefore, row R7 has the same number of stitches as

The previous row of the first half of the heel, but the needle working group 2 is offset by two needles 2 in the direction S2 from the last row of the first half of the heel.

Next, the line R8 is knitted in the twisting direction S1, 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 knit the grip 02 and the second and third needles 2 smooth eyelets O. In the working section of the needles 2, the first selection 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 R7, i.e. knitting one extra loop.

In this manner operation continues in the selecting units and locks, as described in the foregoing ^one. As a result, one needle 2 is added in each row, with the stitches 02 formed at this stage joining with the stitches 01 knitted in the first stage of the heel, as it is located in the adjacent knitting columns, as shown in Fig. 3 , 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 of the lock parts in particular can be used.

PATENT CLAIMS

Claims (3)

25 1. A circular knitting machine for the manufacture of sock goods fitted with needles and stoppers and equipped with a return knitting system with selectors for selecting the needles in both directions of rotation and lifting locks for lifting the needles into working positions, characterized in that the lifting edges (91) ) for lifting the needles (2) to the closing position in both directions (S1, S2) are located outside the space between the retracting edges of the retracting locks (5, 6) of the system for The return knitting and lifting edges (92, 93) for lifting the needles (2) to the hold position in both directions (S1, S2) are located between the retracting locks (5, 6) of the return knitting system. Circular knitting machine according to claim 1, characterized in that for the rotation direction (S1) as in rotary knitting, a first selector unit is arranged in front of the lifting edge (91) for lifting the needles (2) into the closing position and in front of the lifting edge ( 92) a second selector unit is provided for lifting the needles (2) to the hold position. Circular knitting machine according to claims 1 and 2, characterized in that it is provided in the reversible knitting system with a third selection unit arranged to select the needles (2) in both directions of rotation arranged in the direction of rotation (S2) opposite to the direction ( S1) rotating in rotary knitting in front of the lifting edge (93) for lifting the needles (2) to the catching position, with a second lifting edge (94) for lifting the needles (2) at a height corresponding to the ridge height of the retractable lock (5). ) for lifting the needles (2) to the closing position 45 for a direction (S2) opposite to the direction (S1) during rotary knitting. 2 drawings -4GB 289128 B6 FIG 22 ^ 223 C A 0BR.2 -5GB 289128 B6 S2 SI o _D0 - ^ - ^^ about 00 billion □□□□□□□□□□ οπαοαπ _n / αοαοαααααααοααα ^{U1 <^} ODDDDDDDDDDDDDD □□□□□□□□□□□□□ O OODDODDODOODD □□□□□□□□ □□□ O ODDDaaDDaaaa - * 000000000000 ooooooooooooooo □□□□□□□□□□□□ OD οοπποππππππαπππα □□□□□□□□□□□□□□□□ o OaDDDDODDDDDDDaaaa RI