CS236446B1 - Device for bobbine stripper's blocking - Google Patents

Abstract

This invention relates to a device to lock a lowering picker (4) in an inactive position during reciprocatory knitting on a circular knitting machine for the production of socks and the like goods, while simplicity and applicability especially on a double cylinder knitting machine is solved. The device comprises a locking pawl (9) associated with the picker (4) and a mechanical transmission (11, 12, 14, 15, 16), one end member (11) of which co-operates with the pawl (9) and the other one (16) with a wedge (17) arranged on the needle cylinder (1), the mode of operation being that after the picker (4) has lowered three needles into operation by their butts (3) under the action of means (8) the pawl (9) locks the picker in its inoperative position shown until the wedge (17) releases the pawl to enable the picker to operate when the cylinders (1, 2) rotate in the opposite direction. <IMAGE>

Description

In ^some Alez relates to a device for locking the puller in its inoperative position during the reverse knitting on a circular knitting machine for hosiery and the like.. goods.

It is known hosiery round. a knitting machine which is equipped with a device for blocking the puller in the inoperative lowered position in return knitting due to the asymmetric position of the lock and non-working needle puller. The disadvantage of this device is that the cam must be accurately manufactured and adjusted with respect to the transmission clearances so as not to interfere with the knee puller.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the aforementioned disadvantage, which is largely accomplished by the fact that the stripper is adapted for. engagement with the locking pawl, which is mechanically coupled to the ramp · arranged on the needle cylinder. ·

The device according to the invention is illustrated by way of example in the drawings, in which: FIG. 1 schematically shows the arrangement and operation of the puller on the knitting head. wherein the puller is locked in the non-working position, FIG. 2 schematically the position of the non-working knees, the cam for locking the puller and the puller at the end of FIG. 3 is the same as FIG.

-. Fig. 4 is the same as Fig. 2,. but 'position is at the end. Opposite dead centers. .

Well-known two-cylinder round. knitting machine for production. The sock goods are provided with a knitting head with a needle needle cylinder 1 and a cylinder. a lower needle cylinder 2, where the needles (not shown) are stored. and other sinkers for controlling them are. only the upper knees 2 of the needle sinkers are shown. The machine is equipped with known means for reversible knitting, of which only the needle-puller 4, which is assigned, is shown to explain the invention. to the upper knee of the 2 needle sinkers · Further - there are not shown knobs and locks for reversible knitting.

The stripper 6 is mounted on a holder 2 '' which is attached to the bottom plate 6 of the machine. Front, respectively. - the working end of the stripper 8 is adapted to add three needles Z - each side and to the rear end is attached a tension spring 2, the other end of which is attached to the holder 2; the puller 6 to the working and non-working position in the return position. and rotary knitting, which with its lower anchor (not shown) abuts the imaging drum (not shown). ,

Furthermore, a locking pawl 2 'is pivotably mounted on the holder 2-®' suspended by a compression spring 10, the other end of which rests against the pawl. The vertical arm of the locking pawl 2 cooperates with the slots 41- and 42 of the puller. To the horizontal arm of the locking pawl 2 is assigned a ring 11 adjustable in an age-adjustable manner on a vertical shaft 12 of the rod 12 guided in the holder 2 and the upper plate 13. The upper end of the rod 12 is fixed to At the other end of the lever 14, a further lever 12 is mounted on the pin, the swing of which in the left-hand direction is free and blocked in the right-hand direction by a cutout of the lever 12, which is indicated by dashed lines. A roller 16 is arranged on the top of the lever 15. At the upper end of the periphery of the upper needle cylinder 1, a ramp 12 is mounted, which actuates the lever 15 by means of a roller 16 which bears against it. The lever 14 has a compression spring 18, the other end of which is mounted on the upper plate 13, to the arm where the rod 12 is 'arranged'.

-. 3

236 446

The operation of the device described above is as follows. In rotating knitting and at. The needles are in the upper non-working position above the upper knees 2, which are raised to the upper position and not involved in knitting. When knitting lever vratiýfa running when it occurs

The addition of the needles occurs by a command from the command drum to lift the face 8 and the puller 8 is brought into working position. DS is ee so ve

- direction of rotation. and the puller 8 intercepts the first. three nodes 2 and - glow them into. pteobnnosi bays and sam gets into the lower non-working position beneath a row of raised, respectively. As shown in FIG. 1, by dropping the front end of the shifter 6, the locking pawl 2 disengages with the cutout 64 where it has been and will engage in the cut-off portion 1 to secure the puller 6 in this inoperative position. . Needle cylinder 1, respectively. 2 still rotates in the direction. As shown in FIG. 2, when the knees 2 have already been taken off at this turn, they will again reach the puller 6, but since this is blocked in the inoperative position, there will be no re-engagement and the knees 2 ® ^e is in the dead center pusher £, as also in Fig. 2 seen. At this turn, the ramp 17 only freely lifted the roller - 16, because the lever 15 did not engage the lever 16 and the locking latch 2 did not engage.

It moves when rotating in the direction Sg. As the lever 15 is locked by the lever 16, the entire lever mechanism will oscillate due to the force of the spring 13 as shown in Fig. 3. The spring 7 then causes the front working end of the puller 6 to be raised to the working position. When rotating in the direction Sg, the three nodes 2 are captured and transferred from the other end of the non-working group into the field acting on the locks. 2 rotates up to the second dead center, whereby the puller 60 is automatically locked again by the locking pawl 2 in the - lower inoperative position. Before February, the roller 16 moves again onto the ramp 17 and is released again as described above - the locking pawl 2 - and the puller 8 is raised again to the working position. the non-working nodes 2 do not reach •. ·. As shown in Fig. 4.

On further rotation, when the direction of rotation - to - the entire operation is repeated again, this blocking pushers £ -v inoperative position - is going to end ^{- p} flown heel. In the above-mentioned manner, a trumpet is blown at 236 448 by putting needles from one side of the working needles in reversible knitting on machines, where in particular they are knitted by reversing two knitting systems, even on single-cylinder machines. Various modifications can be made within the scope of the invention. For example, the mechanical transmission from the cam to the locking pawl can be made differently, instead of a rod a bowden cable can be used, the lever 15 need not be directly on the lever 14 but can be mounted separately and the lever 14 can operate independently, etc.

Claims (4)

PŽBDMET INVENTION 236 448 Apparatus for blocking a puller in the inoperative position during a reversible knitting on a circular knitting machine for the 'production' of sock items and, characterized in that - the puller (4) is adapted for. engaging the locking pawl (9) which is coupled to the drive (17) arranged by the 'needle cylinder' (1) by means of a mechanical transmission. 2. The device according to claim 1, characterized in that the locking pawl (9) is mounted on the retainer (5) of the puller (4) and its. The vertical arm cooperates with two notches (41, 42) in the. a vertical sliding bar (12) of the mechanical transmission gearing (17) on the needle cylinder (1) is associated with its horizontal arm (4). Device for two-cylinder knitting machine according to Claims 1 and 2, characterized in that the vertically displaceable rod (12) is provided at its end with an interlocking latch (9) provided with a height-adjustable ring (11) for acting on the latch (11). 9) and the other end thereof is connected to a pivot lever (14) mounted on the top plate of the machine, at the other end of which a further lever is mounted. (15) with a roller (16) associated with a ramp (17) arranged on the upper needle cylinder (1). 4. The device according to item 3, characterized by! characterized in that - the lever (15) is provided on one side with a cut-out for engaging the pivoting lever (14) in order to convert its movement into a 'pivoting lever' (14); Device according to the preceding claims, characterized in that the ramp (17) is fixedly arranged at the upper end of the periphery of the upper needle cylinder. (1).