DE2611036A1 - DEVICE OF A MULTI-SYSTEM CIRCULAR KNITTING MACHINE - Google Patents

Description

PATENT ADVOCATE

DiPL.-PHYS. DR. WALTHER JUNIUS 3 Hanover

WOLFSTRASSE 24 TELEPHONE (05 U) 83 45 30

March 11, 1976

Dr. Ö / A

My reference: 2320

Elitex, concerts textilniho strojirenstvi, Liberec, Czechoslovakia

Device of a multi-system circular knitting machine

The present invention relates to a device of a multi-system circular knitting machine for changing the thread guide in the production of a ringed knitted fabric, in which the thread guides are pivotably mounted and cushioned are.

There are circular knitting machines are known which are equipped with a ring or horizontal strip device, which for each knitting system is an independent system of rotatable cam disks contains. These cam disks are rotated with the help of a feed mechanism whose function is a The switching drum of the machine controls, with the individual cam disks corresponding to the individual thread guides of the knitting system assigned.

609850/0216 " ² "

The known Ringeleinricntung described works reliable, but a disadvantage is that the construction is rather complicated and demanding their setting and exact function is. In addition, the Rin ^ e! Facilities for the individual Knitting systems be synchronized with each other.

The object of the invention is to provide a simple as well as easily controllable gate direction.

The invention consists in that the device consists of a rotatably mounted member in the form of a ring, whose fulcrum lies in the longitudinal axis of a needle cylinder, that the ring with segments or working projections at least one knitting system is provided for alternating actuation of thread guides and that this Ring is mechanically connected to a retrograde link of a drive mechanism.

The essence of the invention, further features and further details are explained in more detail below with reference to an exemplary embodiment shown schematically in the drawing. Show it:

Fig. 1 shows a schematic arrangement of thread guides and a ring with segments in a knitting system;

2 shows a schematic plan view of the arrangement of the thread guides in a knitting system and on the ring with segments, which is operated by a pneumatic drive mechanism.

609850/0216 " ⁵ "

2611Q36

The well-known circular knitting machine has a needle cylinder 1 (Fig. 2) and needles, not shown, which in the individual knitting systems; men by a known lock system are operated. To explain the Invention, only thread guides 2 and 3 of a knitting system are illustrated, which aum needle cylinder 1 is arranged tangentially and are pivotably mounted in a stand 4. This stand 4- is on a ring 6 by means of screws 5 of the thread guide frame attached. The thread guides 2 and 3 are cushioned with the help of tension springs 7 and 8 (Fig. 1), the other ends of which are suspended in the stand 4. A ring 9 is rotatably arranged under the thread guides 2 and 3, whose pivot point lies in the longitudinal axis of the needle cylinder 1, the ring 9 on the ring 6 of the thread guide frame is stored. On the ring 9 segments 10 and 11 are arranged (Fig. 1 and 2), the segment 10 den Thread guide 3 and segment 11 actuates the thread guide 2.

The ring 9 is connected to a rod 12 with the working piston 13,14 single-acting pneumatic cylinder 15.16 work together, which on a stand 1? one Not shown machine plate are attached. In this pneumatic cylinder 15 * 16 is compressed air with the help from lines 18 and 19 from a four / two-way valve 20, which is supplied to a compressed air source, not shown is connected and is operated by chain buttons of a counting chain, not shown, of the machine.

In addition to the described device, the thread guide 2 is actuated by the working piston of a known pneumatic device (not shown), the ring 9

- 4 609850/0216

a position geiüäii Fig. 1 assumes when no curling takes place.

The operation of the control device is as follows:

In a bestinr.iten phase of knitting is through the Control drum of the machine the pneumatic gate direction switched off for the immediate actuation of the thread guide 2 and the pneumatic valve 20 is operated by chain buttons of the counting chain, which at desired time intervals in accordance with the production of the knitted fabric, switch the pneumatic valve 20 into two of its positions. As a result, compressed air is alternately admitted into the pneumatic cylinders 15 and 16, whereupon these over the piston 13 »1 ^ and via the rod 12 a return or Pendulum movement of the ring 9 in the direction of the arrow S ^. and Cause sp.

When the ring 9 moves in the direction of the arrow Sp, the segment 10 moves onto a projection 3 'of the thread guide s 3, so that the latter is raised into an inoperative position, the thread guide 2 with its projection 2' descending from the segment 11 and the tension spring 7 brings it back into the working position (Fig. 1). When the ring 9 moves in the direction of the arrow S _x . the reverse mode of operation occurs, in which the segment 11 lifts the thread guide 2 into an inoperative position via the projection 2 * and the projection 3 'of the thread guide 3 descends from the segment 10 and the tension spring 8 brings it into the working position. In this way, the two thread guides 2 and 3 are changed during the curling.

- 5 -609850/0216

The device for the return or pendulum movement dos ring can also consist of a double-acting pneumatic cylinder and "jleicnfalis on the Basis of a mechanical drive ο, .a pneumatic Elements work, the i-iing 9 does not have to work with segments be provided, but can be designed alone and provided with work jumps.

Dec ^{1 The} main advantage of the empirical device is that the curling of all tricks is operated centrally with the aid of a relatively simple device.

609850/0216

Claims (2)

Patent claims: Device of a η or system several round tri-ice machine for the thread guide nerve / ecnsel for the purpose of curling a knitted fabric, "in which the thread guides are pivotably mounted and cushioned,
characterized, that it consists of a rotatably mounted member in the form of a ring (9) whose fulcrum is in the The longitudinal axis of a needle cylinder (1) lies, aaii the ring (9) with segments or projections (10,11) for alternating actuation of thread guides (2,3) at least one .Stricksystems provided is and that this Hing (9) is not reversible Link (13,14) of a drive mechanism (15,16, 20) is mechanically connected. 2. Device according to claim 1,
characterized, that the ring (9) including the segments or working projections (10,11) is provided with a rod (12) which is driven by the pneumatic drive mechanism (15j 16,20) presses v / ird, -.velcher at least one pneumatic cylinder with a rod (12) of the ring (9) actuating the working piston. 609850/0216 3 «device according to claims 1 and 2, characterized, that with the rod (12) dos ring (9) work cages (13 * 14-) from zvrei ■; e ^ 9nverlie: -enden, a x'after pneiuaatisciien cylinders (15 - intervention s iiid. 609850/0216 Le e rs e j te