DE2347131A1 - WRAPPING MACHINE - Google Patents

Description

PATENTANWÄLTE · D 59 Siegen

DIPL-ING. ERICH SCHUBERT Marburger Tor 2 - P.O. Box 462

DIPL-ING. ROLF PÜRCKHAUER ™ * ^fon: ' ⁰²⁷¹ > ⁵⁴⁰⁷⁰

Telegram address: Patschub, Siegen

73 0 ^ 5 Kü / A / Schm

1 8th SEP. 1973

B & P Carter & Co. Limited, Albion Works, Bolton, Lancashire BLl 8HW, England

Priority is claimed for this application from British Patent Application No. 43562/72 of September 20, 1972.

Spinning machine

Dij3 invention relates to "tubular" wrapping machines, which are mainly used to apply a wrapping or braiding or a braid made of wire or textile thread can be used on electrical cable cores and on tubing, although these can also be used to be flat tubular To produce braids or webs, which are used as such, for example, as a flexible electrical conductor when they are formed from wires of high conductivity. In particular, the invention relates to tubular wrapping machines of the kind known as "high-speed" spinning machines in which spools of the one set (hereafter called "outer sentence") in one or possibly more rotate as a circular path, which determines the axis of the machine, and spool another set (hereinafter "inner Sentence "denotes) are either arranged in a stationary manner or what

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is more common to rotate in opposite directions in one or possibly more than one circular path around the same axis, with the filaments diverted from the inner set of bobbins to run inside some and outside of others of the coils of the outer set. (The term "thread" is intended to where the context of the text allows, include wires, and either of a round or a different cross-section). Since only relative movements are essential, the following Description assumes that the coils of the inner and outer sets are facing in opposite directions rotate at the same angular velocity; it goes without saying that this premise is only a frame of reference for the rotational movements should form and should not be viewed as a restriction of the actual absolute rotary movements.

In accordance with the present invention, a high speed spinning machine includes an inner lobed disc and a surrounding lobed ring, both of which are stationary with respect to the frame of reference. The lobes or leaf-like extensions on the ring are located on its inner circumference and are nested with the lobes or leaf-like extensions of the disc in such a way that the disc and the ring between them form an endless, continuous, sinusoidal gap, preferably of uniform width. It should be noted that the "disk" has a central recess which may be large enough ^{to warrant naming it "ring 11. However,} for simplicity and convenience it will be referred to as the disk support for the coils of the inner Set are mounted on one side of the disc and the ring and rotate around the machine axis, which passes through the central area of the disc, and threads from these bobbins run through the sinusoidal gap to a winding position that runs from the disc onto it

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opposite side and is usually arranged on the machine axis. Means will normally be provided for forcibly guiding the filaments through the sinusoidal gap as the bobbins rotate, but there may be exceptional cases where these guiding means could be dispensed with and the filament is guided solely by contact with the interfaces of the gap. On the side of the disc and ring facing the spinning point ₍ and partially supported by the lobes of the same, a circular track running concentrically to the machine axis is arranged, the path of which repeatedly crosses the sinusoidal gap, but is interrupted at the crossing points, whereby the rotation of the threads, if these pass through the gaps, it is not obstructed by coil carriers attached to this track, these are carriers for the coils of the outer set and they are of sufficient length in the direction of the track to run freely over the gaps therein and peripheral actuating heads are provided on the same side of the lobed disc and ring as a track for the supports for the coils of the outer set and are mounted for common rotation in the opposite direction to the supports for the coils of the inner set has an outer radius that is is less than the minimum radius of the lobed disc, and the outer actuating head accordingly has an inner radius that is greater than the maximum inner radius of the lobed ring, so that the actuating heads are not obstructed by the gap between the disc and threads running through the ring. Each actuating head carries a series of actuating fingers, one for each carrier of the outer set, which fingers can be extended into the annular gap between the two heads to come into operative connection with the associated carrier and withdrawn can be used to close the sinusoidal gap between the lobed disc and the

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Lobed ring and allow the passage of thread from a spool of the inner set, and there are means for extending and retracting the fingers while the machine is running, such that each carrier of the The outer set is always in operative connection with at least one actuating finger, but the thread runs from the inner Set of coils not hindered.

The preferred arrangement is such that each actuator finger of the inner actuator head is engaged or operatively engaged when its spool carrier is on a portion of the track held by the lobed disc and the corresponding finger of the outer actuator head is indented or brought into operative connection and the first mentioned finger then disengaged or disengaged as soon as the wearer walks over an interruption in the track to a part held by the lobed ring, this procedure in reverse at the next intersection Way is repeated, etc.

The required movement of the fingers can be generated by drivers that are coupled to or attached to the fingers are attached and are in operative connection with cam tracks that are located on the lobed disc or ring or are arranged stationary with reference to this. In a preferred arrangement, each finger has a curved lever on, which is pivotably mounted on the respective actuating head and preferably a cam follower at a point between aer / i Pivot point and the lever that engages the carrier, carries. However, other modes of actuation can be used if preferred the finger, e.g. an electromagnetic actuation activated by switches, magnetic proximity detectors, photodetectors or the like, which respond to the rotation of the machine, can be used, and the fingers can also be straight and slidable, instead of being curved and pivotable.

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Guides for the threads from the bobbins of the inner set can also be moved by a follower "or driver", which is in operative connection with another cam track. In a "preferred arrangement, such a cam track is on the side of the inner girders remote from the spinning station, and each driver is attached to the end of a hollow lever, which is pivotably mounted on the corresponding carrier. The other end of the lever protrudes through the sinusoidal gap before, and the thread is passed through it, entering the tubular lever along its pivot axis. With this arrangement, the cam track naturally corresponds to the reversal of the sinusoidal gap.

It will be understood that if a tubular guide, which runs through the sinusoidal gap between the lobes of the disc and the ring, is provided and the radial reciprocation of the guide is controlled, it is therefore not necessary that the boundary surfaces of the gap are gently curved. In other words: the tabs or sheet-like extensions do not need protrusions with curved interfaces to be, and the word "rag" or "sheet" as used in this specification should be interpreted in this way will.

The required rotary movements are preferably carried out by a common main drive shaft via a corresponding gear derived for the machine.

Usually the shaft of the machine is hollow to allow the passage of a cable core, hose or other to allow the body to be covered by the wrapping, braiding or braiding formed.

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The spinning machine according to the invention is particular useful in connection with spinning, braiding or braiding of relatively heavy metal wires; she has compared to known high-speed wrapping machines the advantage that the deflection of the threads from the inner set of Coils, which are essentially determined by the sinusoidal gap can be designed in any shape desired or required, and especially as gentle or smoothly as desired or required.

The invention will now be described with reference to the drawing of a preferred construction of a wrapping machine which shows it for example described, which is shown with the axis lying vertically, although they are equally suitable for operation with a horizontal axis is suitable, namely shows

Fig. 1 is a schematic plan view of the one

Half of the machine (the other half being identical as far as it is shown in this figure Features shown concerns), with an attached schematic sectional view for easier identification of the various components; the

Pign. 2 and 3 each show cross sections along the lines II-II and III-III in FIG. 1, however the rotatable parts are shown in different relative positions,

Fig. 4- is a partial plan view, partly in section the line IV-IV in Fig. 3, while

FIG. 5 shows a partial view from below along the line VV in FIG.

After Pig. 1, the basic non-rotating parts of the machine are the disc 1, which have outwardly protruding lobes or Leaves 2, 3, 4 (a total of six) carries, and the ring 5, which complementary, inwardly protruding lobes or leaves 6,7,8,9 (also a total of six) wears. The lobes cooperate to form a sinusoidal gap 10 along which one Guide 11 is forced to run the thread from each bobbin of the inner set. There is usually at least one coil in the inner set is provided for each lobe of either the disc or the ring, but only one is shown for simplicity.

Each tab carries a portion of a circular track 12 for the spool carriers of the outer set, the track is interrupted where it crosses the sinusoidal gap 10.

Figure 1 also shows central and peripheral actuation cam tracks 13 or 14 and a thread guide cam track 15, the functions of which will now be briefly described.

With reference to FIGS. 2 and 3 should first be pointed out that the disc 1 with a first holder 16 and the ring 5 are integrally formed with a second holder .17 which is screwed to a third holder 18, wherein all of these four brackets are rigidly connected to the stationary central column 19 of the machine.

The carriers 20 for the coils 21 of the inner set are mounted around the periphery of a ring 22 which is concentric is attached to the machine axis 23 (Fig. 2) in bearings 24 on the stationary bracket 16. This ring is turned clockwise, As seen in Fig. 1, rotated by an internal ring gear 25 which meshes with a first spur gear 26 on the main drive shaft 27 (see also Fig. 5).

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j COOKING AREA j

Each of the coil carriers 20 comprises a holder 28 on which a guide 11 sits, has a tubular shape and so on is mounted so that it can perform a pivoting movement in the plane of the drawing of FIG. 2 or FIG. The thread 29 runs from the spool via a conventional tension mechanism, including steering pulleys 30,31, and then enters the Guide 11 over an inlet trumpet 32 on the pivot axis. From the upper end of the guide 11 the thread runs to a spinning station, which is on axis 23 and a certain distance above the top of the drawing. The machine preferably comprises a tree (hollow shaft), a piece of which is shown at 33 in Pig. 2 can be seen and conventional tours to Control of the transport of the threads in the direction of the spinning station carries.

The lower end of the tubular thread guide 11 carries a thread guide cam follower 34, the working surface of which is spherical is and on the side surfaces 35, 36 of the thread guide cam track 15 (see also Fig. 1) is applied, which in a reverse Way to the sinusoidal gap 10 is formed to cause the tubular thread guide 11, the sinusoidal Gap to follow once the inner set of coils rotates. As an alternative, a cam track for actuating the tubular Thread guides 11 on the underside of the lobed disc and of the lobed ring and the cam followers can accordingly be attached to the thread guides above the pivot points.

The coils 37 of the outer set sit in carriers 38 (FIGS. 2, 3 and 4), which run on the track 12 and are laid out in this way are that they run freely over the interruptions therein; these are accordingly on around the track Spaced and are driven along this, namely clockwise according to Fig. 2 by a mechanism that

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for the clearance necessary for the tubular guides to run 11 and shop 29 in the other direction. Every thread 39 from a spool 37 of the outer set runs through a tension mechanism, including deflection pulleys 40, 4-1 after a guide eye 42 and from there up to the convergence guides and to the umspinnsteile.

The movement of the coil carriers 38 is derived from an inner actuating head 43 (Fig. 2) and an outer actuating head 44, which are rotated synchronously about the machine axis 23. The inner actuating head 43 sits in bearings 45 on the central column 19 and is driven by a spur gear 46 which engages in a further spur gear 47 on the main drive shaft 27 (see also FIG. 5); while the outer actuator head sits on a rotor 48 which encloses a predominant part of the mechanism but is recessed to allow the loading of reels 21. This rotor 48 sits in bearings 49 on the stationary bracket 18, and an internally toothed spur gear 50 is attached to it, which drives it from the main shaft 27 via a spur gear 51 seated on this and a freely rotating "intermediate gear ¹¹ 52 (only in Fig. 5 visible), which serves to get the correct direction of rotation.

A corresponding pair is provided for transmitting the movement from the actuating heads 43, 44 to each of the coil carriers 38 of operating levers 53, 54 provided (Fig. 2 and 4). These sit on pivot pins 55, 56, which are in stationary positions, respectively on the central and peripheral actuating head 43 or 4 · ι sit. On each operating lever ari is one of its pivot pins a cam follower 57 at a spaced location,: »c ·" attached, and these engage in the cam tracks 13 and 14, respectively a, to the hook-shaped ends 59, 60 of the actuating lever with associated recesses 61, 62 in the coil carrier 37 in operative

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to bring bond or to bring one of these out of contact, as the operation requires.

The mode of operation of the operating levers will now be described with reference to FIGS. 1 and 4 are described, the description begins with the fact that a bobbin carrier of the outer set, which runs clockwise on track 12, is shown in FIG. 1 entry. In this position, the central operating lever 53 is disengaged and the peripheral operating lever 54 is full engaged (as indicated in dash-dotted lines in Fig. 4), and this state is maintained until the cam follower 57 the Bend 63 reached in its track, which causes the lever 57 to perform a pivoting movement and its end 59 in the To let recess 61 engage. When this engaging movement is almost finished, the cam follower 58 reaches the turn 64 in its track 14, and the peripheral operating lever 54 tangled thereby retracted, the mechanism now in the is in the position shown in full lines in Fig. 4, and the segment 65 of the gap 10 is for the passage of a thread guide 11 free in the opposite direction. At the right time, the follower 58 reaches the turn 66 and moves the peripheral actuation lever 54, and when this movement is almost complete, the follower will reach 5V the bend 67 and moves the central operating lever 53 out to the segment 68 of the gap 10 for the passage of another Leave thread guide 11 free. This sequence is repeated five times if the rotation continues from this position, one revolution to complete. The engagement of one operating lever always precedes the disengagement of the other, so that the Coil carriers are constant and inevitably driven: sometimes by the central actuating head, sometimes by the peripheral actuating head and sometimes from both actuating heads at the same time.

Claims

Claims (4)

73 045 Kü / Schm -11- ie. SEP. 1973 Claims 1, high-speed spinning machine with one inner set of coils that are rotated in one direction, and an outer set of coils that are broken on one circular lane and sit in opposite directions Direction can be rotated by actuating fingers that alternate operated to provide a continuous drive for the respective Coil to deliver while a free passage for pades after the spinning station is made possible by the bobbins of the inner set, the threads being deflected to over and under to run different coils of the outer set, characterized in that the machine has a central disc and a surrounding ring, which are arranged between the two sets of coils and both are stationary, with lobes or Leaves on the inner periphery of the ring and lobes or leaves on the periphery of the disc are provided and these lobes or leaves are interleaved in such a way that they form an endless continuous sinusoidal gap between them, that said track is partially carried by the lobes or leaves of both the disc and the ring, so that the Track repeatedly crosses the sinusoidal gap, but is interrupted at the crossing point, and that the said actuating fingers on concentric central and peripheral actuating heads are mounted on the same side of the disc and ring as the track, with the actuator heads common are rotationally driven with respect to the frame of reference in the opposite direction to the first direction. 2. High-speed wrapping machine according to claim 1, characterized by means for continuously guiding the filaments through the sinusoidal gap Λ 0 9 8 1 U / QUUL 3. High-speed wrapping machine according to claim 2, characterized in that it also has a cam track, which is arranged stationary to the frame of reference, that it also has drivers that are operatively connected to the cam track as well as guides which are moved by corresponding ones of these drivers to guide the threads through the sinusoidal gap to lead through. 4. Wrapping machine according to one or more of claims 1 to 3f, characterized in that each actuating finger consists of a curved lever with first and second ends exists, which is pivotably mounted at its first end on the respective actuating head and on its associated carrier engages at its second end, and that the actuating fingers are actuated by stationary cam tracks and cam followers, each of which is connected to the corresponding one of the curved levers between the the first and second ends of the same and engage in one of the cam tracks. 4098 Blank page