DE1278059B - Roesschen for flat weft and edge knitting machines - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

D 04b

German class: 25 a - 2/01

Number: 1278 059

File number. P 12 78 059.5-26 (C 21045)

Filing date: March 21, 1960

Opening day: September 19, 1968

The invention relates to a steed for flat weft and edge knitting machines with a through a cam drive adjustable normal or larger angle of inclination for Kulating normal or long thread loops.

Normally a long series is made by switching the main eccentric shaft so that a Another little horse comes into action, which the sinkers in the horizontal direction over a larger Moved distance so that the sinkers form longer loops of thread between the needles can. These loops of thread need to be long enough to be distributed between the needles can. You would be a normal little horse with normal, steadily increasing drive curves both for the normal length as well as for the long thread loops, this has to be done with a corresponding further movement of the needles can be achieved, thereby removing the thread from several at the same time Sinkers are advanced and subjected to undesirable excessive stretching.

In order to avoid this, a steed is already used whose one drive curve is steeper than runs normally, whereby not only the thread to form normal thread loops for only one at a time Needle is advanced in the desired way, but by using the steep drive curve the same conditions for the long loops of thread be created. With this arrangement, the steep drive curve does not only work with the Production of the long thread loops, but also with the normal stitches. Because the steep drive curve works relatively hard, the machine must run relatively slowly, both during manufacture the long thread loops as well as during the rest of the time when forming the normal length Thread loops.

It is also already known a horse that has two drive cams, one of which can be made steeper for the purpose of forming long rows by tilting the horse and springs are provided which allow the horse to yield when in the production of Long rows, the rockers and sinkers are excessively stressed and so there is a risk of breaking or bending the parts. However, this tilting of the steed is only possible to a very limited extent; in any case, the steeper drive curve causes several sinkers to culate at the same time and thus there is a risk of the thread breaking. On the other hand, the position of the straight steeds also changes for flat culverts.
and edge knitting machines

Applicant:

William Cotton Limited,
Loughborough, Leicestershire
(Great Britain)

Representative:

Dipl.-Ing. R. Bibrach, patent attorney,

3400 Göttingen, Pütterweg 6

Named as inventor:

Ernest Start, Wilford, Nottingham;

Dennis Winfield,

Shepshed, Leicestershire (UK)

Tread of the little horse, so that the kule depth is changed unfavorably by their inclination.
The invention is therefore based on the object of designing a steed in such a way that the gripping of several sinkers is avoided even during the production of long thread loops.

This object is achieved according to the invention in that under the steed with a normal angle of inclination its drive curves an additional curve piece with a larger angle of inclination of its Drive cam is arranged to be longitudinally displaceable in its running direction, the additional cam piece lags behind the drive cams with its drive cam in the inoperative position and stands in front of a normal drive curve in its working position in the running direction.

A steed is already known, on which an additional curved piece with the same angle of inclination the drive cam is arranged to be longitudinally displaceable in the running direction; this additional curve piece but solves the problem of the sinkers springing back when working longer stitches to prevent reinforced courses.

In a further embodiment of the invention, the additional curve piece is by means of bolts in the Slots freely slidable into the inoperative position while it is by means of a rear extension piece is held in the operative position, the extension piece having a pivoted finger is assigned, which is adjustable between the effective and ineffective position.

809 617/100

The finger has an end piece, which by means of a rotatably articulated on a short arm seated spring on the finger is coupled to the arm and the end piece with the upper and lower sides to bring a rod into engagement, which is connected via the lever to the shaft, which in turn via the lever, the upright rod with the short arm interacts with the end of a cam lever, which in turn is assigned to an eccentric on the main eccentric shaft.

The idea of the invention allows various possible embodiments. One of them is in the enclosed Drawings shown for example. It shows

F i g. 1 is a schematic plan view of a conventional one Steed for normal large thread loops,

F i g. Fig. 2 is a similar view showing the unsatisfactory work of a conventional steed when producing a long row,

F i g. 3 shows a similar view of the steed according to the invention during the production of a long row,

F i g. 4 shows a cross section through a flat weft knitting machine with the important elements for the invention Share,

F i g. 5 is a plan view of the steed according to the invention and

F i g. 6 is a side view of a detail at the lower part of the FIG. 4 illustrated parts.

F i g. 1 shows a steed 1 of conventional design with the usual, evenly rising drive curves 1 α and 1 b, which actuate the rockers S to move sinkers 3 for forming normal-sized thread loops NL from the thread Y between the needles N forwards.

F i g. 2 shows that when using the steed 1 for the long thread loops LL of a long row due to the additional horizontal movement of the needles N, the thread Y is fed simultaneously from two or three sinkers 3 instead of normally by one sinker 3, whereby the thread F is undesirably stretched is exposed.

Fig. 3 shows a modified steed 2 designed according to the invention, which not only has the normal, steadily rising drive curve 2 a and 2 b , but also a steeper drive curve 2 c. As will be described in detail below, the steeper drive curve 2c, as can be seen in FIG. 3, is effective for long thread loops LL, with the result that the thread Y is only dumped by one sinker 3 at a time, although it is thread loops of a long line , the steeper drive curve 2 c being put out of action in normal thread loops LL , so that for this the normal, steadily increasing drive curves 2a, 2b in the manner of the drive curves la, Ib according to FIG. 1 come into operation.

The modified steed 2 is shown in more detail in FIG. 4 and 5, from which it can be seen that the steeper drive curve 2 c formed on an additional curve piece 4 and that on the underside of the sting 2 is attached in such a way that the steeper drive curve 2 c is normally slightly in front of the adjacent, steadily rising drive cam 26 (Fig. 5).

The additional curved piece 4 can slide under the steed 2 in its direction of movement. to for this purpose, the additional curve piece 4 is attached to the steed by means of bolts 5, 6, which is to has slots 7, 8 running parallel to its direction of movement, through which the bolts 5, 6 extend.

The additional curve piece 4 has a rearwardly directed extension piece 9, which is under the guide rail 10 of the steed is, and with which a rotatably mounted finger 11 cooperates.

The finger 11 is attached to the pin 12 (FIG. 4) on a housing 14 for the steed Console 13 rotatably mounted and provided with an end piece 15 protruding to the rear. This End piece 15 is by a spring 16 with a rotatably mounted on the finger 11 short arm 17 so connected that the arm 17 and the end piece 15 are drawn towards each other, whereby they at the Attack the top and bottom of a rod 18.

The rod 18 is carried by a lever 19 which is seated on a shaft 20 on which a further shorter lever 21 is arranged, which in turn with the upper end of an upright rod 22 connected is.

The lower end of the rod 22 is rotatably supported on the short arm 23 (Fig. 6) of an angle lever, the other arm 24 cooperates with one end of a horizontally arranged cam lever 25, the mounted on a vertical pivot 26 and forms a roller lever with a roller 27, which in turn cooperates with an eccentric disk 28 on the main eccentric shaft 29.

During the operation of the device described above, the steeper drive curve 2c is normally not effective, since the finger 11 is in the lower position and releases the extension piece 9 of the additional curve piece 4, so that for normal sized thread loops NL the swinging the additional curve piece 4 Slidably move towards the steadily increasing drive curve 2 b , whereby only the steadily increasing drive curves 2 a, 2b are effective for the normal-sized thread loops NL. As a result, the machine can skid quickly when normal sized thread loops NL are formed, that is to say most of the time by far.

If a long row is required, the main eccentric shaft 29 is switched in a known manner, whereupon the eccentric disk 28 actuates the mechanism 11 to 27. Now the finger 11 is lifted into a position behind the extension piece 9 of the additional curve piece 4 and thereby holds the steeper drive curve 2c for the long row in the working position, the steed moving in the corresponding direction. During this movement of the steed for the long row, the rockers S are actuated only by the steep drive curve 2c, so that the long row or the long thread loops LL essentially as shown in FIG. 3 is produced.

The working speed of the machine is usually reduced when the main eccentric shaft is switched, and the long row is thus produced at a relatively low speed. As already described above, the machine can run quickly during the rest of the time when producing the normal-sized thread loops NL.

It is clear that when the cam 4 is put out of operation, its sliding movement is at the can protrude on the other side of the steed so that

During the backward movement of the steed, the rockers S slide the cam piece 4 back into its original position, from which it can be put into operation again by the device 11 to 27.

Claims (3)

Patent claims: 1. Rößchen for flat weeding and edge knitting machines with a normal or larger angle of inclination adjustable by a cam drive for culating normal or long thread loops, characterized in that under the sting (2) with a normal angle of inclination of its drive cams (2 a, 2 b) an additional Curve piece (4) with a larger angle of inclination of its drive curve ( 2 c) is arranged to be longitudinally displaceable in its running direction, the additional curve piece (4) with its drive curve (2 c) in the inoperative position behind the drive curves (2 a, 2 b) ao and in its working position in the running direction in front of a normal drive cam (2 a, 2 b) . 2. Rößchen according to claim 1, characterized in that the additional curve piece (4) can be freely moved into the inoperative position by means of bolts (5, 6) in the slots (7, 8), while it is held in the operative position by means of a rear extension piece (9) is, wherein the extension piece (9) is assigned to a rotatably articulated finger (11) which between effective and ineffective position is adjustable. 3. Rößchen according to claim 2, characterized in that the finger (11) has an end piece (15), which by means of a spring seated on a short rotatably articulated arm (17) (16) is coupled to the finger (11) to the arm (17) and the end piece (15) with the To bring the upper and lower sides of a rod (18) into engagement, which via the lever (19) with the Shaft (20) is connected, which in turn via the lever (21), the upright rod (22) with the short arm (23) of an angle lever is connected, the other arm (24) with the end of a Cam lever (25, 26, 27) cooperates, which in turn has an eccentric (28) on the Main eccentric shaft is assigned. Considered publications:
German Patent Nos. 489 961,190 801;
U.S. Patent Nos. 2,473,355, 2,381,376. 1 sheet of drawings 809 617/100 9.68 © Bundesdruckerei Berlin