DE1635863A1 - Switching device for multi-system circular knitting machines - Google Patents

Description

Patent attorney DIpl.-Ing. Rudolf Möbus REUTLINGEN H I N D E N B U R G S T R AS S E 6 5 TELEPHONE CO7121) 34718

P 658

Mayer & Cie

Machine factory

'Tai! Fingen / ViTürtt.

Switching device for multi-system circular knitting machines

The invention relates to a switching device for multi-system Circular knitting machines with at least one preferably arranged on the periphery of the machine so-called sand drum, which is controlled by at least one switching element arranged on the rotating part of the machine can be incremented.

209824/0076

BAD OfcIGiNAL.

P 658 - 2 -

Switching devices of the type mentioned with candy drums are already known and can be used for various switching purposes, for example as switching devices for sample devices to stop the sample drums over one or more machine revolutions to delete certain pattern rows, or to change the Kulation depth on the knitting systems. With the previously known Switching devices of this type are the edge drums of a cam ring, which is attached to the lower support ring of the circumferential E needle cylinder is attached, switched via a linkage, its lever and handlebars in the area below the cylinder lock jacket get lost. The arrangement of the shift linkage in this space has the disadvantage that it is valuable Takes up space and the arrangement of jacquard pattern facilities and other additional devices for the Knitting machine difficult.

The invention was based on the object of creating a switching device with edge drums that takes up little space and the placement of pattern devices and other ancillary devices in the area below or above the lock mantle of the machine is not affected. This object is achieved in that the Switching mechanism for the edge drums of the switching device is mounted in the stationary lock shell and under the influence at least one in the rotating needle carrier of the machine

ORIGINAL BATHROOM 209824/0076 - 3 -

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Ί635863

adjustably arranged rotating cam stent. Per rim drum According to the invention, one can be shifted in each case in the lock casing mounted shift rod is provided, which can be acted upon by the revolving cam and which can also be connected to one known indexing device with a pawl and a ratchet wheel connected to the edge drum a / irkt. The preferably radially displaceable in the lock casing The shift rod that is mounted makes a shift linkage that extends outside and below or above the lock jacket y / ie completely dispensable in the known devices of this type.

The rotating cam is preferably adjustable during its rotation by at least one in the lock jacket of the machine applied control cam. In general, a selected position of the switch cam is over a full one Maintain the rotation of the machine. In this case there is a single fixed trip cam and a single one Switch-on cams which can be brought into an operating or rest position optionally are provided, the switch-off cam denoting the Circulating cams, which are preferably axially displaceable on the needle carrier of the machine, are moved into a rest position, in which he the switching rods for the edge drum cannot influence, while the switch-on cam can move the rotary cam into a working position, in which he acts on the shift rods of the edge drums. One or both positions of the overrun cam are n secured by means of locking mechanisms.

209874/0076 _

BATH ORIGINAL

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But it would also be possible beyond the scope of the machine Provide several switching points, each by one in the direction of rotation of the machine at the end of a knitting system arranged stationary switch-off cams and switch-on cams provided at the beginning of the subsequent knitting system would be characterized. It is also theoretically conceivable and would be possible in practice, several and preferably against each other Circulating cams arranged offset to be provided on the needle cylinder.

According to the invention, the revolving cam is also with a beveled Provided switching edge, the inclination of which runs in such a way that the switching edge fits on when it runs up shaped ends of the shift rods for the edge drums an effective axial force component in the direction of his working position is exerted on him, which prevents the control cam is moved into its rest position in an undesirable manner by the shift rods. The shift pin the edge drum can, for example, directly or indirectly on one or more drop lock parts of the associated Acting knitting system and, for example, the use of cam lock parts or cam lock parts steer.

Details of the invention emerge from the following Description in conjunction with the drawing, on which an embodiment of the subject invention is shown more or less schematically.

209824/0076 BAD ORIGINAL _ s _

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Show in detail:

Fig. 1 is a vertical section through the Badial Needle cylinder and the cylinder lock jacket of a circular knitting machine at the height of the TJmIaufnockens and a rim drum elf

2 shows a plan view in the radial direction of the adjustably mounted rotating cam;

3 shows an inside view of the cylinder lock jacket with the thread door and the knitting systems on both sides

4 shows a section along the line 17 - IV in FIG.

The lock jacket 1, the needle cylinder 2 and a support flange 3 for the cylinder lock jacket 1 are shown in FIG shown in section. In the area behind the cylinder lock jacket 1 there is a switch pin 4 Edge drum 5 arranged. The edge drum is connected in a known manner with a coaxial ratchet wheel 6, which is used for step-by-step advancement of the edge drum 5 with one Switching pawl 7 cooperates. The pawl 7 is against the force of a compression spring 9 in a bearing body 8 Arranged longitudinally displaceable on a shift rod

209824/0076

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is attached, the dee in the widened lower part Lock jacket 1 in the radial direction against the force of a Return spring 11 is displaceably mounted ·! Figure 1 shows the front rounded end 10a of the shift rod acted upon by a revolving cam in the working position 12, which is arranged on the needle cylinder 2 so as to be displaceable in the axial direction. The revolving cam 12 has a beveled switching edge 12a, which, when it hits the convex end 10a of the switching edge HO, that on the circulation cam 12 a force component gexxcürbete upward in the drawing in the axial direction of the needle cylinder is exercised, which is an undesirable adjustment of the revolving cam 12 in the drawing downwards in his Prevents rest position located in a plane below the shift rod 10.

In the present embodiment, the switching pins 4- of the edge drum 5 act on a pivot lever 13 » the one in the radial direction against the force; a return spring 14 in the lock jacket 1 slidably mounted drop lock part 15 controls.

FIG. 2 shows a plan view of the inclined switching edge 12 a of the rotating cam fastened on a slide plate 16 12 · The slide plate 16 is in the direction of the arrow 1? circumferential needle cylinder 2 in the direction of the double arrow 18 loaded axially displaceable

209824/0076 - 7 -

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T635863

Gert and can be moved from the upper working position shown to a lower rest position, not shown. The switching cam 12 is secured in its illustrated working position with the aid of a shift lock which has a locking bolt 25 which is mounted in the slide plate 16 against the force of a spring 2Ά and which can engage in a lateral locking groove 26 in the needle cylinder 2 or the bearing parts for the slide plate 16 .

The displacement of the revolving cam 12 in its lower The rest position takes place by means of a stationary switch-off cam 19, which can be seen in FIG. 3. This switch-off cam 19 is provided with an inclined switching edge, on which the revolving cam 12 drawn in dash-dotted lines in FIG. 3 runs up and thereby in the direction of the entered Bfeiles at the end of a rope lock system A in its lower rest position is moved. In the illustrated embodiment, this is the one on the needle door 20 of the cylinder lock jacket adjacent rope lock system A is selected. That is on the other side of the needle door 20 subsequent knitting lock system B, seen in the direction of rotation, is in its starting area with a switch-on cam 21 is provided on the inclined run-up surface 21a the revolving cam 12, which was previously shifted to its rest position by the switch-off cam I9, hits and is thereby pushed back up into its upper working position, as soon as the switch-on cam is not in its

2G98P4 / 0076

from Figure 4 apparent rest position is withdrawn but in its in Figure 4 by dash-dotted lines Lines indicated working position 21 'is located. Of the Activation cam 21 can be displaced in the radial direction in the lower widened part of the cylinder lock jacket 1 stored. It is normally by means of a compression spring 22 clamped in its guide bore in its Working position 21 'held, and its adjustment in the The rest position shown in FIG. 4 takes place, for example, by means of a Bowden cable 23.

As can be clearly seen from the drawing, the switching mechanism is the switching device for the edge drum 5 completely stored in the cylinder lock jacket 1. A shift linkage extending outside the cylinder lock jacket for the edge drum is completely omitted. When the switch-on cam 21 is in its working position, is reset to its rest position by the switch-off cam 19 after each revolution of the machine Circulating cam 12 in the first knitting lock system B of the machine moved into its upper working position, then acts on the shift rods 10 of the individual rope lock systems and stored in the cylinder lock niantel moves it into its position shown in FIG. 1, with the one with the shift rod 10 in the radial direction moved and with the ratchet 6 engaged pawl 7 the Ιϊ and drum 5 by one switching step

2 0 9 H 7 LI (I Π 7 P BAD ORIGINAL _

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v / pus moved »If the UmI is on cam 12 in its lower rest position, not shown in the drawing, it does not act on any of the general Cable lock system of the machine associated switch rods 10. Aa Instead of separate switch-on cams and switch-off cams 21 and I9 could also be a single one in the lock jacket adjustably arranged cams can be provided, the optional switching on or off of the revolving cam causes. f

209824 / (1076-10 -

Claims (7)

P 658 - - 10 - Ί635863 Pa ten tan s ρ r ü c h e 1 * Switching device for multi-system Kundtriok machines »with at least one so-called hand drum, preferably arranged on the periphery of the machine» that of at least one on the. rotating ateii of the machine arranged switching element can be switched step by step kahh | characterized gekeimzeichnet _t that their switching mechanism is mounted to the edge of the stationary drum Böhlößmäntel (1) and is under the influence of at least one adjustable narrow in umläu "fenden needle carrier (2) of the machine" arranged Ümiäüfnöekens (12) * 2. Switching device according to claim 1 "characterized geiehnet" that they aufweigt- per Rändtrommel (3) a displaceable gölagerte in iehlol "coat (1) Söhaltetange (10), which came to be vcwa Ümlaufnockön beaufsehlagt (12) and aa a © also See the well-known step shut-off device with a switch gear (?) and a switch wheel (g) connected to the sand drum (5). 3 * switching device according to Änspruöh 1 \ md / öd @ r Äüsprueh characterized »that the trmllaufnöeken (12) at BATH ORIGINAL P 658 - 11 - its rotation is under the influence of at least one control cam, preferably adjustably mounted in the lock casing (1) of the machine. 4. Switching device according to one of the claims 1 to 3 » characterized in that the revolving cam (12) on the revolving needle carrier (2) of the machine between axially displaceable in two positions and at least in one position by a locking mechanism (24 to 26) is secured, and that its adjustment by means of at least one in the stationary lock casing (1) radially displaceably mounted control cam (19,21) takes place. 5 switching device according to one of claims 1 to 4, characterized in that a fixed switch-off cam (19) and an optional in an operating or rest position which can be brought into operation switch-on cams (21) are provided. 6. Switching device according to one of claims 1 to 5 » characterized in that the revolving cam (12) has a beveled switching edge (12a) such that that on him when running up the switching edge (12a * on the appropriately shaped ends (10a) of the switching rods (10) an effective axial force component acts in the direction of its working position. 74/0076 - 12 - 6AD ORIGINAL P 658 - 12 - 7. Switching device according to one of claims 1 to 6, each with an edge drum for each knitting system, characterized in that the switching pins (4) of the Belt drum (5) directly or indirectly at least one drop lock part (15) of the associated knitting system steer. 209824/0076