DEP0002202BA - Method and devices on cable jacketing presses for pressing electrical cable cores with a gas- and moisture-tight jacket. - Google Patents

Description

Process and equipment on cable jacketing presses for pressing electrical JUbslseelen with one another gas- and moisture-tight jacket.

When crimping electrical cables and cables similar to cables with a gas- and moisture-tight jacket By means of a K-.belmantelpressa there is in many cases the danger that the cable insulation is mostly made of "Flammable η St» ffsn, - such as from layered paper ribbons «, made from textile materials in JOrm v®n threads, sheaves ♦ the B an dg sweben bastsht «, under the influence of the high press temperature existing in the press, the burns charred. This risk is particularly great when hard-to-compress, high-melting aluminum or the like "Requires particularly high press temperatures to be pressed onto cable sheaths, and in doing so ... especially during the H ^ ltz:; iten the Presb-a, while the pick-up is refilled with liquid or with a solid, heated bolt insert. The risk of burns in some places, especially if the cables are very heat-sensitive, It is so large that it is almost impossible to encase it successfully with the protective measures known up to now will"

Eur V.rhütun-gä »i described tibalatänds igt-ready ai ^ iii ^» rd-n »an Et ^ ls-iel ·? while ö.üq Prvsszu lüihl n, SoB. through ^ in the Zabels- Io cUr gih- is;, n Sors umschli iss -ndss, deppslwandig'-s cladding tube, in the Λπο 'I] XhIt lüsßi ^ " ¹ - rit - circulates» After Hin.:.m, jid ..rsn Ve ^ sclil. ·. ": shall d ± ;. Kcfo; 2s, -öle mit cinir ν .xbx ^ nnuncsi.Bst-n ^ sbLst-ScbatzlicViicltliui ^ Vörssh & n war-0.3Γ-. ßirsi Bchutsmassiid.b.ai, - _; n are ab sr, wia di ^ experience teaches, cntvvidjr niciit ginüg.nd v / iräsam, "dc.y they are" wis di3 'Asbosfb ^ .vviclQung,, zu lc® st Bp i el ig _β da si. das EaI) rl w ·: s ■ ntISAh v -, rt .u.rn.

With dwX invention s «ll" -n die g '-; scbildsxtsn ITbulstands v-rmiscLsn w: -rdrn. D .-. & Sisciiisht däc.vurcii _f das ·' - da Isölicrstjiffun dr-.:r zu unimant.-Lnd : -: n j.Iat> cls ?, 1ώ inn-iTÜalii Oe ^ "g ^c .h-.izten Zon-j dr K-.bulpxagsa d ^ r eins Vf-xbrsnnüng -; rmögli eil slide Sau '/ r stiff intzog''n will, ind ^ a dio air from d;:. r f? ■: ■ lay i ζ tan zone drr pre & aa, e.g. durcla evaluation is removed.

is facility for this b-.st lit b.-ii ö.sn fe # gonannto.n prsss & nl!: öpf 3JL, through dia das ' S. "b ^ l is passed through at right angles to the pressing direction, äkarin that the hf hl 3 presses and the C zn. Dorn tr in the evening hehl 3 Dornh.-ilt --- r sO'alcuiirt w -rd: n, 'v / · through der dar V-rbr jnnun ^ sg-j.-fc.hr aus..s ·. tzt? n ΐ-: · .ΐ) Iscil ^ o inn..rhal "b dsr 3 rh ^ izt: η Zen.3 d..ir Io-Td: ·.! press di ·; Vr "br-nnuncsluxt is withdrawn"

With a .-. R so-called-: n G-radsauopXcSSs, \> h ± d .-. R thus the ummant ilnds'Ka "b .-- lSo-: l = through isn hollow Prasst o.iipel and. C Through the .-: h hehlsn Auf η ^ hm ; X through the die in the g er ..id-.sr direction is pulled, l: ann that of the incoming

.la & als-bcl · '-. as a guide a - and protective tube di ^ n-indc, laiö over the moved ^ n component of the press 3 beyond. Β & Ϊ1Τ. auö .., - rhalb djB Prasst-mpsls in gl iichsr Weis ^, - as v@rstahi.nd to ^ sdhriebcn, 9Valnii3rt -w

The withdrawal of the combustion may not be necessary for a long time during the entire pressing process Cable upright he has to get tsn! in some cases it may be sufficient to encase the evacuation Cable hall only during the periodically recurring holding times of the rail during which the sensor freshly coated with liquid tdsr firmly on the heated material to be pressed

The withdrawal of the oxygen or the air according to the invention can also be brought about by the fact that during the pressing, for example, a cable core soaked with insulating mass of the Xab el se -.1: n feed channel to the pressing tip within the heated zone the Prasse is filled with the same insulating compound, i.e. the cable core is wrapped with insulating compound

Finally, the cable core feed channel of the cable press can also be used within the heated zone of the press a neutral (inert ^ "gas such as e.g. nitrogen, whereby the combustion air in the same isise how through. IsoÜeroiasse is displaced »

The invention reliably prevents the cable insulation from burning. But also without oxygen access, heat alone can cause a harmful preliminary change in the insulating material w "-rdsn, but with the temperature prevailing in K ^ bslm-ante! the downtimes of the presses to send the pick-up again '' such noise damage is not to be feared is «In addition, the rate of such heat damage is reduced by the invention itself. So will by withdrawing air from the heated 2 «ne. by Evalruisrun ^ the heat transfer to the cable core

greatly reduced. If the cable duct is filled with impregnating compound ®der oil, wash around the cable core, a cooling of the soul is achieved by this measure at the same time. Disses. cooling effect can be increased by the fact that the IsolisrmassG is set in college and cooled what is outside the press can be done via a circulation pipe system in conjunction with a cooling system. The same can also be carried out with a protective gas used to fill the cable feed duct. This can also be put into circulation and be cooled outside the press in a circuit "

By removing the air by evacuating or rewinding the cable core with a gas atmosphere, the cable insulation is at least more or less dried out under the effect of the increased temperatures in the press. eg during Nachfül-, lens new pressing product _s can go as WSIT this dehydration, the smoothness of the insulating materials and their hot strength considerably lowered w £ a $ M, • so that the risk of damage when the cable bends occur. From diesem'Grunde it may be advisable u.Ue, is iLabclssele the Wiedsranfahren the press after Halteziitsn a metered quantity of Irish air supply of certain moisture content to the isolation a Wiedc-up eyes a necessary to maintain the necessary suppleness amount of moisture to allow.

In the accompanying drawing, examples of devices on cable jacketing presses are shown in two figures Exercise 4 of the described method according to the invention recorded,

Fig * 1 shows ainen longitudinal section in elevation through sinon press head, in dsn the pressed material, deflected z _f B .. aluminum of obenfecr, from (T-ilwiiss drawn) pickup coming j by rinsn Zulbitungskanal occurs and in the right--3R Wlnkol is, so oinen sogsnaimtan Winlccilpressenlcopf,

Fig. 2 shows a longitudinal section in elevation through a sine pick-up head, bsi that the Zabslsssle to be sheathed through the hollow press punch and further through the hollow, in only partially drawn pick-up -Pr ^ sssnlcopf beiastigtan thorn holder through tha Prcsawcrkzeugin aug \ -, loitat is, u ^ lso ¹ one so-called G-called to Garadsauspr 0 ssen. ¹ : opf.

In the jig * 1 is arranged with 10 d-sr steel body of the Wlnkalprasssnkopfes and with 11 dar izb ^ r the Prcssanicopf, only tsilw-jis's dargsstbllti; Sensor "bsz-.ich-ηεΐ · 12 is the hollow mandrel shoulder and 13 is the hollow press mandrel» Opposite it, the die 14, Ci3, is supported by the die, which is designed as a pressure screw will. The die holder is equipped in ■ b.jk.anntor ϊι / -ise with Ksilkopf ~ ScJirL \ ub3nbolzsn 16, through the dia Matriz.9 radially introduces wi.rdsn can. The mandrel holder 12 and thus the press mandrel 13 is secured by a pressure screw 17 axially determined on its own; / Em ^. And strong of the cable jacket.

G of the invention is the hollow 3 thin holder

a tube attachment, in the illustrated example by a tube 18 screwed into the mandrel holder Pressure screw 17 is also extended, at its end outside the press head with its stuffing tube 19 and-a soft to the Sabälsesle

20 is varsciilassen. Dia packing gland 20, which encloses the Kafcslssele 21, vsr to bin _eic-rn that evacuating the cable duct atmospheric 3iu £ t vtn

r penetrates "or da.:S di3 protective agent mass # of gases - to escape, iohir. -: not to escape. 3-i, G i <ier other cables with longitudinal channels inn: rh ^ lü der seele sin <J the ends of these channels on gö-ignetö fe-iS3 air · tJzw ». masse- oc'.sr öldiGht to close * Bia zu elndvi Kabalsesls is with 21 and the tnxsits with Jacket-umpresste.-ΚΛ-el part with 22 inscribed

The drill 13, together with the hollow mandrel 12 and the next press mandrel 13, form the ILJo 3lse, len-feed channel 23 within which, approximately in the area of the press at the head, the Kafcolseule is dangerous liagt. ₉ in the diö heat of the heated press head s © wis also the v «m hüis & en press material in the press head jragGne Hit ζ ·? through radiation and noise reduction, _{to the part} through direct contact with the Prasswerl-czeugjan, is transmitted to the cable »

The two pipe stubs a: -η 24 and 25 attached to the master clock .18 serve to facilitate the evacuation - "or the filling of the cable duct 23 with insulating material or protective gas according to the 'ffirf itneheii?" 2ti l »ewexft -> ^ 3 ^}: is-« L, - Ao _ .. i.3daia Ä ^ sf-% ®iÄ © tt "R" ftrstutaen 'drainage cocks 26 and 27 are provided, using the "biii corresponding position 'You Hahnlcegf-il any air to be removed from the UlQuX cable duct, protective gases etc. can be ordered outside.

To the effect bsi the displacement of the combustion air from the cable duct 23 or the direct cooling To increase oil, a further Rt & r 28 is built in concentrically in the main rotary 18, which is from the pipe socket 24 up to the vicinity of the press mandrel 13: istj se * djiss carries the combustion protection agent / like insulating mass% of the GiS.se., Outgoing from the pipe socket 25; and inside the

pipe 2 £> until close to the die 14 in a row «. The backflow of the circulating protective and coolant takes place between the inner roller 28 and the solid outer roller 18 and goes over the tube _. 24:; in ;;: the cycle;. Out; arhalb the press about sir.

In manchsn! Cases when such "B" hochsrhitztes, such as liquid eingebrachtfis aluminum vez should werdsn pressed and possibly one warms sensitive cable core must be covered, it may be necessary / the evacuation of Kabelseel ^ or the & Λ.3Ι supply channel during the ump to maintain the entire length of the cable «. The entire length of the cable, including the cable that is already sheathed, is evacuated ^. Otherwise there is a risk of combustion air flowing back from the sheathed cable part into the dynamically evacuated cable duct. This can be prevented by sealing the cable end of the sheathed cable part airtight. This cable drum can also be constantly connected to a vacuum system when it is being wound onto the cable drum, for example via the pivot pin of the cable drum , in order to keep it constantly evacuated from "disser" Seit-2.

In other cases it may be sufficient to maintain the evacuation only during the holding times of the press, while the receiver is being refilled with material to be pressed. »The same applies accordingly ^; with regard to the use of other varnish protective agents like masse-baw. Gas filling,? of the Kabslkanal.

In. The jig. 'At 40, 2 is the. zoiehn.-fisch only partially presented receptacle-press head b-saclehnet _} in which the mandrel holder 4-1 *, with its outer jacket 42 connected by bridging, is permanently installed. The hollow press mandrel 43 is gas-filled into the mandrel holder tube 41

from the only partially shown matrix holds sr 45 is carried «Bc ·; χ M ^ trizr-mhaltor 45 is screwed as a print'.es or tea in the contents of the sr stile and sits in the usual Vi / eise facilities, ινίε di- Keilkopf-Schr.vubenbwlzsn 46 and -j in--; inner Jiliinsra pressure screw 47> with which the adjustment of the wall thickness as cable jacket and the radial adjustment aax matrix ■ = Id = W. is cracked. The hc ^ ii-3 Irrsisringformigs Presstainp21 4-9 üin reaches into the krsisririgformigsn dispatch room 4 & of the receiver, who is reciprocated by the ^ ngüdautatsn ^ assardruck- ■ ikol "bsri 5 @ of the press." In then Dornh ^ lter _4.1 / 3in centric through the press .throughout "to over -. for the" bowsworthy parts of the press go out " : n. nd; s extension tube 51 screwed in, which at its outer end, wi3 in the case 3 dss ob ^ n sssclirieTssnen Winlcslprsssen'iopf: ε ₅ 3 into the dis -Xab el seele umsthli'iSSriide stuffing box .52 and two pipe sockets 53 and 54. TIm the stuffing box spawns and quickly "with psriodically recurring pauses": n der Prasse "beÄiensn, an am'Rokr 51 eefestigtss lever linkage 55 is provided, which by a locking ^{device for the St. u} llh? .be2a - -a certain sn pressure of the.

The KaTD ^ lseel3 5 & is inside the cable guide tube 51 through the hollow pressing tube 49 and then through the hollow mandrel holder 41 through the pressing element 4'5 saw. the die 44 is fed in a straight direction ο Sa d = r Aufnahmr-r-PrBSöenliOpf 40 is electrically heated (56) from the outside and is continuously fed to the receptacle by means of the hot-shaped HalDzylindsrn introduced to the insert plate. r / S. _s is the .Kabelisolierung -this starktn tJberhitzung and therefore dsr cjtz.t danger of combustion or Verknhlung excluding ^. Up to the danger zone hler reaches from the "Pr:; sstempel 4 $." To stwa to the die 44. Bi ^: evacuation of the cable -.- n-supply cone 57 or. the filling of this flange with insulating material or gas takes place via the pipe sockets 54 and 53. An inner pipe 58 built concentrically in the main pipe 51 forces the above-mentioned protection means to flow right up to the press eye. in the

Otherwise, the irrxindungsgsinasson protective measures in the voxl ^: -icg3nd '-. n case, as in the case of the Fig. 1 b-ischri v: "bsn _? angaw

jjie invention is not tied to diü darg_-st, silt -; -. n and bisrisb3n = n examples5 si <3, on the contrary, is also "with different The details of the facility required for its implementation can be used . after 3:> may be modified wrdsn.

Figursn

Claims (13)

Claims »Legal claims. 1, V = rfahr :: n zum Umpross & n jlektrischer Sabclsoelsn with iinsm gas- and f euhtigkeitsdicht211 Mantslj especially 3 € ii-3m Alxirainiujamantslj characterized by the fact that the Kabelseüla within the Kabclmant:; lpri; sse vein a made possible when oxygen is opened. 1. The method according to claim 1, characterized in that 'within d.?rg^hr-izten Zoni dsr EabelmäntGlpresse the Käb-Λ supply channel (23 Fig. 1 bsw = 57 Fig. 2) evaltuic-rt we <3 · i " Verialir'-rn according to'Anspruch 1, daiui'ch gGrlrann draws that X: <r. ± d'-jr coating of ¹ Kabclsis soaked with 'I'so'li-irau-Sss ^ ün the .latiarzuführun'gölcanal (25 '"or» 57)' within 'the g_ _: h ^: .iztcn' Zqn.2 dsr 'Pressb in it ein lic Kübalseel :,' lclihleii- d (2il 'Tränkmasoe b'zw «- with ol'g ^ filled cabaln with ...-. in which Xabviisecls coolAcn insulating oil is filled. 4 · »V ^! "= rfahran according to claim 1, characterized gokennzsichnet that (IiG to uiTimant bliiAz .Xab-disaele ίϊεχ within Dür heated Zona Prcssi- under immersion, neutral (, ifiartc) Gasatmosphär:. · ■ ,. IZoBe untü.1 '· sin ·. Nitrogen atmosphere is set. 5 »Method according to claim 3? through this. g _o ? r.-. nnz -sichiis that the combustion air ν: rdräng: .nd3 Isjüiraicss; baw. the Isolisröl within the gshGizton zone of the press; xa TJmI .uf and, if necessary, golniblt outside the Pr-- ss ia Zi ιεΐ .uf * 6. The method of claim 4, d 'durca -; - ::; -_ ζ i. ':., t,' ϊ. & ώ άι;. the combustion air v _; rc.xan ^.-τ '.. G - :.' ■ .. .tra-iopha:. · ■ ·. i; -; v.i'h. Vq der gjheiztsn 2οηε d ^ r Pi as ■ in IJaI ^ l :; ; -_; ^ tst and notirv .: - if except 3 he half c. r Pi S6 '. i ^ ϊϊι: .sl .u £ .- ■ '... ύηΐυ - ..: ·. ic .. 7 .. V? _; r drive on according to claim 1 _,? you ··, through 3:. ;; nna: ichr .. -Λ , c. .so ci. a dilution of the ICa "bslisolisrstoff3 värhmdcrnden Maas * - took only during" the Hai ta times dsr KaTsslpr ^ ss? retention of title to werdsn * 8. The method according to claim 1 _? d: \ by gsisnnz? lehnet, cä-ss TDeiii :. 'iü / iederanfahrsn dsr Prasse, after a long period of time the Zabel se zle sine Zugsmss-senc dose of fresh air from certain Zeucht Iglceit sg shalt ■ is supplied. 9 «Facility to ..ICcId-ilmantelpr asssn for AusülDung d.-ir Varfahren according to claims 1" to S ₅ thereby gslcennzGlehnet that cUr hollow mandrel holder he (12 tsw. 41) "or * -.- in'ihn tinged longitudinal pipe. (18 "bzvv'a 51) out of the way" b dor presses ait auxiliary of pipe attachment in (24 and .25> between. 53 and 54) valued od:, r with G ;. ώ Dsw- iait Is - ': li (jrm. "soc odsr insulating oil is filled. 10. Establishment at K j. Im. Xt "Ipr & ε.η. Η λοΙί claim 9, d..by i :. :: .. nnE" lehn 3 t _? d .... ss. , ff. He α f. D; -s V ilän ^ :. lur.-jsr ^ lirss (18 or 51). in the-; _di:. E .-. 1DJlSj:! -. (21 or. 56) umscrui iss, ndo poetry • 3 Β »ιλ ϊ-irni sinfi St-pfbuchs- (19 bsw. -57) with 5ij: -rv / tich ^ a, G.13 K .-. Tjilsri - ^ l ^ already, r.den Έ cmnv (20) vo-r, rj - .. s - ii; -. r is. .11. Equipment at Kabüljnant ^ lprfessen according to Ajaspru. # H · 5, ■ characterized by 3in in the Vvrlängerungsrokr (18 \ zw _A 51) concentric singjeaut ^ s Irmen pipe (28 or 58), through the di: i cable insulation compound or the " -isolieröl baw. The neutral gas ^ is in the. Near- the pressing mandrel or the die. 12 * means of cable jacket presses according to claim 9, characterized in that the _Rokrstutzen} (24 and 25 "or * 53 and 54) are provided Aiit Dreiwegehähiitin (26 and .27)» 13. Device at Kab .-. Luiaritslpi-v.Gsin according to claim 10, characterized in that the stuffing box through a adjustable lever linkage (55) is operated.