DE1919474A1 - Device on knitting machines for the alternative feeding of one or more threads of a group of threads belonging to a feeding system to the same feeding position - Google Patents

Description

PATI-NTaMvVALTE

DIPL-CHEM-DR-WERNERKOCh DRYING. RICHARD GLAWE

DIPL.-ING. KLAUS DELFS DIPL-PHYS. DR. WALTER MOLL

HAMBURG MÖNCHEN

3000 Hamburg 52 WaltzilraBe 12 Call 8922 55 8000 Manchen 22 ■ LlebherntraBe 20 · Huf 226548

J ! HUE MESSAGE FROM OUR SIGN HAMBURG

p 5260/69
P / T

G. BILLI & C. S.p.A. , Via Cavour 37, Florence / Italy

Device on knitting machines for the alternative supply of one or more threads to a Group of threads belonging to a feed system to the same feed position.

The invention relates to a device on knitting machines for the alternative supply of an or several threads of a group of to a feed- system belonging threads to the same feed position.

In known devices of this type, a plurality of thread guides with a swinging lever is provided. One group of each to a feed system appropriate thread guides with levers are included with each Feeders grouped and assembled on the same axis, in a number that generally corresponds to the number of threads that are replaced in this feeder

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should be. Any of these traditional thread guides with lever must be controlled individually to enable replacement of the thread. This known arrangement brings complications both in terms of construction and control, in particular, if several Fadenführungeii are controlled at the same time must correspond to each other in several feed systems distributed around the needle cylinder.

The invention aims to avoid these disadvantages. The object of the invention is accordingly to provide a device of the type mentioned at the beginning Kind that is more simply structured and easy to control.

The solution according to the invention consists in the fact that it has an organ which is angularly movable and which has a majority of angularly offset passages in the form of thread guides and that at an angle in both Directions can be controlled in such a way that at least one of these passages can optionally be moved into the lowered feed position, the entire width of the angular displacement is kept within such limits in both directions that entanglement of the threads is avoided will.

The external profile of the rotating organ also acts as a tongue opener and can be circular, polygonal or be profiled in some other way,

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A device of this type for machines with several feed systems can have an angularly movable member for each feed system with several passages in the form of a thread guide * These members are arranged in such a way that they can be controlled simultaneously by a single transmission, if required. In particular, the organs that are movable at an angle for rounds can train machines for stockings or the like. be arranged with radial orientation or last radial orientation or lying in axial planes (to the cylinder) or inclined slightly to an axial plane, and can be controlled by a ring gear coaxial to the cylinder, which is displaced by the Prograraiiivorrichtung.

The device is in the following with reference to the Drawing explained in more detail, which is a practical one, not shows limiting embodiment of the invention. Show in it:

1 is a schematic, axial view of a circular knitting machine for knitted goods, in particular for stockings which, for example, have a single thread feed device according to of the invention owns;

FIG. 2 shows a detail of FIG. 1 in a larger mail s tab;

Fig. 3 shows a view from the line III-II1 of Figs

Fig. A shows a view from the line IV-IV of FIG

Fig. 3.

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In the schematic representation of the drawing , 1 generally denotes the circumference of the path of the needles A in the axial view of the cylinder. 3 denotes a fixed component around the needle cylinder, which is intended to normally also carry the traditional thread guides with a swinging lever, among other things. A plurality of feed systems can be provided, which one has to imagine at the positions X1, X2, X3, X8 in FIG. 1.

According to the invention, instead of a row of thread guides with levers provided in a feed system, a rotating member 5 is provided - for example in the form of a disk - which is mounted next to the needle track A at the position of the thread take-up in the highest part of the track (see Fig. k) . This organ 5 or the like in the form of a disc. is provided on the periphery with several holes 5A, which are parallel to the axis of the organ 5 or inclined accordingly or at least arranged so that the threads F can pass through them, which can be fed in the system in question. The holes can be more or less the same be far from the axis of the rotating organ. The number of holes 5A should be at least equal to the number of replaceable threads to be fed in. The threads to be fed can come from a fixed rake 7, which is provided with appropriate eyelets. The holes 5A can be in suitable, possibly specially shaped projections

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which effectively present the thread to the needles A when each of the holes passes the feed- position reached. Small sockets or tubes made of ceramic are preferably used in the holes, which avoid wear on the side of the yarn.

'The organ 5 is mounted on a shaft 9, which is of a support 11 is carried, advantageously so is designed that they the shaft 9 with an im carries substantially radial direction or inclined slightly with respect to the radial direction. The support Ii can be from the platform 3 be held.

By angular displacement of the organ 9, such a displacement of the organ 5 is brought about that one or the other of the holes 5A can be arbitrarily brought into the feed position with the puncture of a thread guide. This position is in particular the one indicated by 5AX in FIGS. 3 and ¹ t , ie the lower position, while the other holes for thread guides are raised with respect to the web and are therefore in such a state that they allow the thread to be grasped from the sides of needles A.

The angular displacements of the shaft 9 and therefore of the Organ 5 are kept within such limits that the threads F cannot devour themselves. In particular, angular rotations can be imposed on the organ in both directions but with a maximum width of no more than 360 °. In the case of yours, as in the example, four holes 5A for thread guides for a maximum of four replaceable

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The presence of threads can reduce the angular displacement of the organ 5 can be held within 270 ° of the maximum excursion in each of the two directions of rotation of the organ 5.

The tongues are secure when moving along the lower part of the circular profile of the disk 5 lowered.

For the control in particular of rotating multiple pad guides according to the invention, for example in the positions from Xi to X8 and which must be controlled at the same time can be on the platform an angularly displaceable Hing 15 can be provided, which carries a continuous or interrupted toothing, which with each of the pinions 17 provided on the outer end of the shafts 9 can mesh. The shift of the ring 15 can thus simultaneously the whales 9 of all or several Control the thread guide to the devices 5 | 9 same Impose angular shifts. The ring 15 can be used for Example of a means in the form of a Bowden cable 19 or any other suitable control system that applies to all feed positions is only one and the ring 15, a number of positions can impose equal to the number of holes 5A of the organs 5 are. If under certain conditions you have to hold the same type of thread in two positions, the rotating organ can be left fixed or it can possibly the thread guide can be exchanged ^ without one

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changes the thread type because you have two identical feeds. In order to exclude a steering movement on one of the rotating organs, control can be provided by a cam operated by the ring or replacing the ring; In certain cases the teeth of the ring can also be divided.

It is possible to envisage the simultaneous feeding of two or more threads at the same or different levels of the corresponding holes. G

The disc 5 can also have the function of a "small Socket to open the tongues "have or holds during of the thread take-up the tongues of the needles open, which the "Mesh lifted off the tongue. For this reason, it must be completely polished, made of hard material (hardened or tempered steel, stellite or the like.) and shaped, sized and arranged so that when the machine turns without a thread, it does not damage the needle tongues, It goes without saying that the drawing is only an example

for practicing the invention, and that Q shows the practice of the invention in forms and arrangements can vary without therefore going beyond the scope of the idea on which the invention is based. It's clear, that the organs 5 can have any shape that is suitable for the function described, and that they too can be controlled selectively, i.e. independently of one another.

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Claims (1)

- 8 claims ft.)) Device ο, η knitting machines for the alternative feeding of one or more threads of a group of threads belonging to a feeding system to the same feeding position, characterized in that it has an angularly movable member (5) which is offset by a majority of at an angle to one another Has passages (5A) in the form of thread guides and the angle is controllable in both directions such that optionally at least one of these passages can be moved into the lowered feed position (5AX), the entire width of the angular displacement in both directions being kept within such limits is that a tangling of the threads (F) is avoided. 2.) Device according to claim 1, characterized in that the circumference of the rotating member (5) circular, polygonal and / or some other kind of thing is shaped so that it is also an organ that opens the tongues represents » 3o) Device according to claim 1 or 2, characterized marked that in machines with several feed T-en
system for each delivery system an organ that can be moved at an angle and has several passages in the form of 909848/0596 Thread guides is provided, with several or all these organs can be controlled simultaneously by a single transmission. 4.) Device according to one of claims 1-3, characterized in that in circular knitting machines for stockings and the like. The organs movable at an angle are arranged with a substantially radial direction and by a ring gear which is coaxial with the cylinder and controlled by the program device (15) are controlled. 9 09848/0596 AT, Blank page