DE1243056B - Method and device for the automatic shutdown of stranding machines, in particular high-speed stranding machines, when the wire breaks or the spool is idle - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

D 07b

German KL: 73-1 / 08

Number: 1243 056

File number: K 43410 VII a / 73

Filing date: April 7, 1961

Open date: June 22, 1967

The invention relates to a method and a device for automatically switching off Stranding machines, in particular high-speed stranding machines, in the event of a wire breakage or reel idling, whereby the already laid rope or cable is scanned.

There are devices known through which a
Stranding machine at Drahtfiß or Spuienleerlauf
is switched off automatically. These known shutdown devices are located near the io
Supply spools or somewhere between supply spools
and stranding nipples and then come into action when
the tension of the wire between supply reel and
Stranding nipple is no longer given as a result of a wire break or the supply reel idling. 15th

But it turned out that this knows- ~

th cut-off devices do not take effect, 2

if a wire breaks within the stranding nipple, so

that the supply reel in question stops, but within one lay length or basket rotation the wire between the supply reel and stranding 20 averages and then the number of wires determined in this way with the nipple remains taut, as the wire end is compared in the prescribed number of wires and if there is less

the latter disconnects the stranding machine

Method and device for automatic
Shutdown of stranding machines, especially high-speed stranding machines, when the wire breaks
or reel idle

Applicant:

J. A. Kraft, machine factory, Olpe (Westphalia)

Named as inventor:
Herbert Neu, Olpe (Westphalia)

Stranding nipples usually clamped and thus the machine through the conventional shut-off devices is not switched off. In this way there can be a significant loss through scrap. In a known device of the type mentioned, the continuous monitoring of the Dimensioning of strands in high-speed stranding machines the finished strand is passed through a nipple,

is switched. Thus, if the absence of one or more wires per basket rotation is found, so the basket stranding machine is stopped.

This can be done according to the invention in such a way that the number of wires of the upper cover layer of the cable or rope within one lay length with the number of wires within the following

the latter below the former
machine is switched off.

A device according to the invention for carrying out the method, in which a scanning device

is provided, is characterized in that a scanning device is provided per wire the upper cover layer an impulse to one on the

which is compared with one of the maximum strand dimension 30 lay length and that if corresponding hole slidingly sits on the strand. the latter is below the former, the stranding

This sliding nipple used as a scanning device is only effective when the maximum Dimension of the strand is exceeded. But there with

a wire break in the interior of the stranding nipple the 35 between two the completely twisted round or secondary exterior Dimension of the strand hardly changed and the round nipple leading to the gate cable or wire rope or the like.

is certainly not enlarged, a wire break can not be detected by this known device will.

The object of the invention is to create a prescribed number of wires for the top layer and a device for automatic Ab- repetition counter in the form of an electromagnetically switching a stranding machine in the event of a wire break or see pulse counter with preselection and automatic reel idling, which the stranding machine immediately stops repetition or one relay or a elektronischaltet when the round or sector manufactured see received counter, not having the number of wires in cable its straight stranded topsheet 45 of the upper cover layer per beat length or basket required number of wires. Revolution counts and in the absence of one or more

The method according to the invention for disconnecting wires via a disconnection device which brings the stranding of a stranding machine, in particular a high-speed machine, to a standstill,
running stranding machine, either in the event of a broken wire

or in the case of wire unwinding or spool idling, there is a certain number (of the required wires) in 50 Line in that the number of can be set when scanning, has the advantage that this Wires of the upper pelvic layer of the cable or rope counter at the one lay length up to the set

709 607/319

3 4

Number counts, then switches over and again when a torsion spring 21 follows, so that the scanning surface 17 first lay length counts down to zero. On this is constantly pressed against the sector rope 1. Of the Way, the number of top layer wires on the lever 19 is determined by a resilient pad one stroke length or during the one basket 22 made of foam rubber or the like. Against the lever 15 a turn with the one on the next beat 5, so that it is relative to this when cutting to length or during the next basket rotation feel the individual wires 2 moved and thereby over be compared. a contact pin 23, which is connected to a contact spring 24

The scanning device expediently consists of interacting, each time via the wires 25 and 26

a spring pressed against the cable or rope closes a circuit. The contact spring 24 can

The stylus tip and an even stronger pressing keypad can be adjusted by means of a screw 27,

area, where each time a wire is scanned, each time the contacts 23 and 24 close

Contact can be closed. As a result, the inner BE has an impulse to a repetition counter Z (Fig. 4)

quality of the cable or rope has no influence on transmitted, which continues a number with each impulse.

the scanning device. In addition, the switch-off enables. For example, if there are six wires in the upper one

tactile surface a steady adaptation to the surface 15 top layer, the counter is set so that it is at the

of the cable or rope, even if it reverses, as in the case of number 6.

of a sector cable, is not round, so that the con- So one rotation of the basket counts from 1 to 6,

Cycle path of the probe tip relative to the probe surface with each next rotation of the basket from 5 to 0 back

any rounding or circumferential shape of the cable and again with the following basket rotation

or rope is essentially constant. ^: 20 from 1 to 6. If a wire is missing, the

Instead of this mechanical scanning device, scanning device 3 only five pulses per basket rotation

which give hung on the repetition counter each time a wire of the top layer is scanned. Instead of the

a contact closes, can also be a capacitive number

or inductive scanning device, 123456 543210 12345 6 etc.

by which when passing a wire gap 25 the counter then registers per basket rotation

or a wire of the cable or rope different 1 ο ο λ c, · (, „; 1 η 1 ο ο

Strong current impulses are generated, which 12 J 4 5 654321 1U123 etc.

the meter can be used. Every time the repetition counter is at

The invention will now be based on the addition of the set number, which of the number

For example, the drawing corresponds in more detail to 30 of the wires of the top layer, has reached ,

described, namely shows it closes a normally open contact ζ (F i g. 4). While

F i g. 1 is a top view of the contact ζ according to the invention is closed, briefly a par-

Scanning device, allel to this switched normally closed contact k open.

F i g. 2 in section on the line II-II of FIG. 1 Contacts ζ and k are operated normally

a side view of the same, 35 times at the completion of each basket rotation

F i g. 3 part of FIG. 2 at a different or inclined position at the same time, so that always one of the

Position of the sector cable, which contacts are closed. At the next basket

F i g. 4 a simplified circuit diagram of the invented revolution, the counter subtracts to 0, where he

proper disconnection device, while when the number 0 is reached, the contact ζ

F i g. 5 diagrammatically shows the closing and opening 40 closes.

periods of the Kon used for the shutdown but if one or more wires of the

reproduces bars. The top layer is missing or missing, then the rest

In Fi g. 1 a pre-twisted sector cable or clock k is opened before the meter makes contact ζ

- rope 1 shown, which has been closed from a large number of, so that both contacts are open,

Wires 2 composed. The rope 1 is through 45 whereby, for example, the holding circuit for the

two in front of and behind a scanning device 3 connected contactors S of the machine interrupted and the

brought round nipple 4 out, which is brought to a standstill in nipple holders 5 stranding machine,

are stored. The nipple holders 5 are on one The contact sequence of the contacts ζ and k of one

common rail 6 attached. The preformed basket rotation to the other is shown in FIG. 5 cause

Sector rope 1 shows a clear light due to the strongly drawn out 50. As can be seen from this diagram,

Line 7 indicated preform twist. Several sol- is the working contact ζ for safety reasons

rather, sector ropes 1 are known to be closed over a longer period of time.

In the second step, stranded to form a round cable. hold when the normally closed contact k is opened.

The scanning device 3 is, as is clearer from It is understood that the contacts ζ and k Fi g. 2, can also work the other way round by means of a holder 8, preferably 55, that is to say that the Kotiweise attaches a break contact to a rail 6 by means of a screw bolt and the contact k a working pin 9 and nuts 10. A shaft 11 can be in contact. It should be noted, however, that bearings 12 and 13 are mounted, which are firmly closed on the holding contact 8 for a somewhat longer period of time. The hub 14 of a lever 15 is when the normally closed contact is opened.
by a pin 16 rigidly connected to the shaft 11 60 It should also be mentioned that the contact k, which is the. At the outer end of the lever 15 there is a suitable place on the stranding machine legs 17, which can be pivoted on the lever 15, regardless of the counter Z , is arranged for each of the out-of-round shape of the sec-basket rotation, whereby it is in the way torseiles 1 can be adjusted in any position of the same to adapt that its actuation with the- (Fig. 3). The scanning surface 17 surrounds a probe tip 65 those of the contact ζ of the counter Z in überia-18, which can be brought to mood at the outer end of a lever 19,
det, which is rotatably mounted in bearings 20 attached to the lever 15 instead of by the mechanical repetitive counting. The lever 15 is below the tensioner Z, the wire difference or the lack

Claims (5)

a wire can also be determined by transmitting the button impulses to a relay or a counter with a co-determined, controllable basic comparison value (e.g. 6) or an electronic counter or the like, and the machine can be brought to a standstill if the respective count value does not reach the basic value. In addition, instead of the mechanical scanning device 3, a capacitively or inductively acting scanning device can be used. IO patent claims: 1. Procedure for switching off stranding machines, especially high-speed stranding machines, in the event of a broken wire or wire run-off or spool idle, in which the already beaten Rope or cable is scanned, characterized in that the number of wires (2) of the upper cover layer of the scanning Cable or rope (1) determined within one lay length or one basket rotation and then the The number of wires determined in this way is compared with the prescribed number of wires and if the value falls below the the latter the stranding machine is switched off. 2. The method according to claim 1, characterized in that the number of wires (2) of the upper cover layer of the cable or rope (1) within the one lay length with the number of wires is compared electrically within the following lay length and that if the latter is below the former, the stranding machine is switched off. 3. Device for performing the method according to claims 1 and 2, in which a scanning device between two fully twisted round or sector cables or wire ropes Round nipples or the like. Is provided, characterized in that a scanning device (3) is provided is, the per wire (2) of the upper cover layer an impulse to one on the prescribed Number of wires of the top layer set repetition counter (Z) in the form of an electromagnetic Pulse counter with preselection and automatic repetition or a relay or one electronic counter that shows the number of wires (2) of the top cover layer per Lay length or cage rotation counts and, if one or more wires (2) are missing, over one Switch-off device brings the stranding machine to a standstill. 4. Apparatus according to claim 3, characterized in that the scanning device (3) from one against the cable (1) resiliently pressed probe tip (18) and an even stronger pressing Touch surface (17), a contact can be closed each time a wire is scanned. 5. Apparatus according to claim 3, characterized in that a capacitive or inductive Scanning device is provided. Considered publications:
German Patent No. 533 569;
German interpretative document No. 1021760. 1 sheet of drawings 709 607/319 5.67 © Bundesdruckerei Berlin