DE1704798A1 - Process for the production of a conveyor belt with a foam layer - Google Patents

Description

Leuförder Kunststoff Gu: .b, H. & Co ILG.

und Beteili ^ un ^ s- und latentvervraltun.ys./jbollsehaft _; J-, it be s chi "linkt or Haftuno; in Essen

Process ^ ur production of a F or de rba.nd.es uit a

8 chauaist off layer; ^:

Pie He find us _; .. refers to a method for producing a; = I'V-rderbanaas uiit a foam layer, which on the Tr a _; . s ei te a weapon like Huster with close to one another lie, end Vertiefuii's and Erheouri -; s has and a "ναι _Vertiefunr" in! fen iiixiein-; ezo '* enes _J ^ thin abrasion resistant ■ ochic.rfc üuerao , e ?: iatj, while on the run it is marked with a ku;: feston j-iittei verDunaen. ·

This kind of conveyor belts are mainly used for steep conveyor systems; in other words, the material to be conveyed up is wiped between the layers of two materials at the same speed according to Ό ^ ϋ ije: ie ter belts are embedded, with the abrasion-resistant η ^ ix die ^ ciiaufflstoffschicl-iten protect from wear and tear.

iVioxifix; vial '· vor.'jesehen uerarti ,, _/:; e PorderDänder in the V / else ^ hor ustvillGn as "a running side at the non-Gu a Jichaumstoffschicht applied .L.Üjand and these on the Ti-a- oeite e.g. using f ^j profile rollers with the ^T ,; ai.T ^ laj.'ti;-; en iiucter v-.vrGehen and daf3 on the patterned surface; the abrasion-resistant .'-layer is sprayed on.

D ^ r- jiirfindan ,; lie;, t die; Object of the -Hersteilung of ■ i'jC; iauiiiötoff-l ^{| 1} '/ irtuchaftlich to shape and doing a --i ürclerbändern the einca-n ^ s i-type enannteri f.eSürK ^ RSS.. .li-ilo.i .-. iajJL ^ e (vualitat aea i · 'or the gang ε zu, ^ n / äii

Jm :; '..' irο orfin ^ uiiK &r.eraa; primarily achieved thereby., ', a _w üiiiäou ^ t ei / ie diu-'uiiine, ubriöufoste layer bilduiicUj j <' olie, '» a fJntf; ria; .o with 'recess un; en that denote the Jirhejjun,, en ύοΛ './affel-

BAßOftiGiNAL

109822/1520

. Pattern -corresponding, on ^ eleyt and after Kr./arniunc Into these depressions, which are owed to a sub-printer ^ eu.er; -eüc; .ilossen, in ^ esau ^ t ./ird, and then between before η c "ie so -eforcite foil and one at a distance from this';: ■ * = finO-lichon Hüllkür ^ er the off, an., s; .iciteria, l is introduced for the foam layer, which when foaming with ο er Bolle and connects the shell ...

This can happen, for example, that ·; as Unterla, υ a work table is used, which contains c.le indentations on its upper side, in each of which a section of a foil is sucked. The individual sections of the film can then be seen one after the other with the waffle pattern, whereupon a finished section of film and the enveloping body of the cut-out of the film to be foamed can be seen. As the enveloping body, for. B. serve a Gumuiuand, which has the running side of the finished Hinder country and - :, ie to j-forces when operating the conveyor belt.

Instead of such a Guran.lcando u.an, ./Ie Lti-uitK before esclila ^ en x; orden is, Zurolle der from Cfe./eoe use, eic. In the formation of the foam layer it foams "-, -..- rren. These tension members made of fabric are, for example, arranged in two or weir ia ^ s in the cut of the running side of the conveyor belt, but can also be spread over The entire width of the conveyor belt as a conveyor belt on the running side. F or de r bande s ve rvre ride η.

Purpose \>i>; is at the \ mv fixed means forming Geweoe bile in a solcnen case the HüUkcrper, ei-de Folie applied the w ^ iderstandsfähi ;;:? ^ e .en a Vci'scnleiii during rotation of the conveyor belt around the Uralenkti oihiueln- is.

To a continuous production of a Fi.rderbanden the EINP; _t ^r -; s type mentioned viird the ancestors NaBH rec _Erfindun; designed so that .. the film, which turns out to be an abrasion-resistant layer

109822/1520 ■ original bathroom

is located on the route side of the conveyor belt, via a circumferential Roller 'is moved, which the Unterla ^ e / for' generation of the waffle pattern, and that the one running off the lialze Foil. And the enveloping body moved at the same speed be, with between. inside that at an on; stop Introduced from an ^ suaterial i'dr the 3 ohasily off layer foams. Zvjeclü.-iä .-. I; _:. ^ It is in the V / eise, because "the H'J.llicorper as an endless 'tape' circulates over two turns and those on the Tra *. Side with your waffle pattern Then slide when'ei η them together after one. ; uit dem Envelope reaches the loading point su is closed in an endless ribbon.

The method according to the invention can also be carried out in this way that the film located on the carrying side is wider than it corresponds to the finished conveyor belt, and that during their movement between the roller and the task put their side parts in the direction of the shell pivoted towards four so that they close to the side of the space receiving the foam layer or at least contribute. Also the film applied to the fabric on the barrel side can be made wider than it finished conveyor belt corresponds to 'Then be'during-the continuation-we., uii £ .this dinghy, before it reaches the task, their üeitentelic in the direction of the one on the route side lichoii-'Foil Iain so verEchvienict, there,', she to the side Λ us ei il ie, .en du g cie foam layer receiving space serve oclex-weni Buens, jeitra ;; en. SvüCK.;: Iä ^ i ^ be the ^ citon last (. er.aiiiitc :. iia ,, nahaien ,, leichi; eiti, - applied, wouei die Overlap both foils oeini pivoting and welded together will.

An example of the execution of the procedure after the creation, findunp; is explained on the basis of the drawing. This ^, eij_t in Fi; . 1 eirrm perpendicular Lan, .ssehnitt cui'cn c-in ^ i-ula; e-:; u:.;

BATH

10982 2/1520

continuous production of a foam conveyor belt , of the type mentioned at the beginning.

Figs. 2, J and 4 are Shnitte according to the lines II-II, III-II1 and IV-IV in Fi ₁ -. 1.

On its running side, the conveyor belt should be a film made of a wear-resistant plastic as an enveloping body obtain. This film, denoted by 1, is as an endless .Band led around two tail pulleys 2, J5 / his upper run is supported by rollers 4. Under certain circumstances, the upper side of the subject may rest against other ribs. One of the two drums 2, 5 is driven so that the film 1 in the sense of marked arrow moves.

An endless fabric band 5, which is firmly connected to the film, is wrapped around the film 1. It has the width that corresponds to the finished conveyor belt. The film 1 is executed _o en ureiter, and their side parts 6 are provided on both sides in front with respect to the cloth tape 5 so long as the film is spread 1, as shown in FIGS. 2 and J.

The film 7 to be applied to the carrying side of the conveyor belt is also wider than the width of the finished conveyor belt. It is unwound from a supply drum B. and for the production of the waffle pattern over a circumferential Roller 9 out. The jacket of this roller is provided with depressions 10, between which elevations 11 are located are located. The arrangement is made so that the elevations against each other both in the axial direction and in the circumferential direction are offset. The roller 9 sits on a hollow shaft 12, • the ends of which protrude on both sides lie in bearings Ij5. In the hollow shaft 12 is an insert body 14 of semicircular Profile inserted, which rests against half the inner surface of the hollow shaft 12 in the area of the roller 9. He sits down in a cylinder 15 continues, which closes the hollow shaft 12 at / left end / through one and this cylinder 1 [> seated Ann Iu, who at the goat

, 109822/1520 bath

of the one layer IJ, is attached, the insert body 14. c'aran, eainöert, part of the Utulauf movement of the Ual & 'e 9- " ifeiK.ien. The inside of the honing shaft 12 is on the cylinder ■! [> Opposite end in connection with a pipe 17, which is tightly inserted into a bore in the hollow shaft 12 and connected to the intake port of a fan Io. A set on the hollow shaft 12 is used to drive the cylinder 9 V-belt pulley Iy.

From the bottom of each depression 10, a channel 20 leads in the radial direction through the roller 9 and through the hollow shaft 12, the number of these channels opening freely into the interior of the hollow shaft 12, while the openings of the other channels through the insert body 14 Are completed. The arrangement is so correct that ... in each case at least in that area of the circumference of the roller 9 in which the film ( the roller 9 Uiüschlin ;; t, the relevant depressions 10 in the interior of the hollow shaft 12 are freely connected and therefore in them the negative pressure generated by the fan Io prevails "As a result, the film ¹ J in the respective recesses» »-. uerein _f esaugt so that they do hereby anücn.uiei.t the wells viird the ti'olie 7 by heating the v / alae 9 in elneii made certain Ausmais plastically ·. This heating ... arm electrically or 'done with steam. If during rotation of the, ^ Alze j i>' motion olle ^r f over the apex of the circulating hini ^"T e If it changes, it is moved further in a somewhat horizontal direction so that it lifts out of the depressions 10. In order for this to take place freely, the connection between the depressions 10 and the interior of the hollow shaft 12 is interrupted there. ., each the Openings of the channels 20 are closed by the insert body Vl . As a result, the suction ceases, which was previously in the depressions 10. Foil 7 was exposed so that it could easily be lifted out of the recesses.

The film 7 has the desired after leaving the roller 9 Waffol-Iiuater, which it maintains as it cools down after dent resists & ndsfäiilf ·: against deformation Is. BADORfGINAL

109622/1520 - G -

The thus formed film 7 is moved at the same speed as the film 1 and the fabric tape 5 parallel to this with a distance which corresponds to the foam layer to be produced. In the region below the sub truras the foil 1 and the fabric tape 5, the film '(is supported by rollers 21, which one te If läclien ctei .; :: afi'el pattern of the film are adapted γ.

In some of the .Entfernung VJalze viird y in the ilaiu-i between the film '' (and the tissue "band 5, the AusgangSE-aterial --I = I- door Schaumstoffscuicat The _{introduced;.;} <Schieht by means of e-ii The nozzle 2 ~ j, 2s is, for example, a polyester or a polyether, i.e. a material that foams cold.

While the film 7 moves from the roller 9 to the outlet end 24 of the nozzle 2 ^, four de η its side parts 25, as Fig. J shows, gradually pivoted upwards. This can be done with the help of in ^ eei ^ neter w'eise c ^e nei [, t an ^ eofinetei. btütsrolle 2o take place. At the feed point for the outflow material 22 at the outlet end 2k of the nozzle, the side parts 25 are directed vertically upwards. They too have a vJaJTel-I-5uster, which is generated when rotating around the roller 9. The elevations and depressions in the side parts 25 will preferably have a smaller size than the elevations and depressions in the central part of the film 7. They can also be produced instead of the V / aIze 9 by the correspondingly profiled support rollers 2ό with appropriate heating.

"While the sheet 1 located on the running side of the conveyor belt with the fabric ribbon 5 is moved from the tail pulley 2 to the application site 24, v / grounding their side parts υ a.lluählich pivoted downward. Finally overlap the upward simultaneously _c eschwenkten side parts 125 ^ ei * ^ olie '"{, ^: .'I«! •' ig. 4 shows, on both rare o.et. hey; raus te lie nc en conveyor belt, the overlapping side parts i>, 25 are welded to one another. This is done by means of heated rollers

- ■■ ·. BATH ORIGINAL

2'jf, which in arrangement ■ with perpendicular axes of rotation against the Side panels-ö are pressed. For this purpose, the Rolls 27 in stands 2o ^ stored transversely to the movement ■ direction of the foils 1, 7 in guides 29 e.g. with the help of hydraulic strength equipment> q moved four the. The heating devices are denoted by 5I. The welding the- "· these side panels are preferably made with a high frequency device.

By the side parts 6 and 25 connected to one another in this way of foils 1 or 7 is the one to be filled with the foam layer Space, as Fig. 4 shows, on both sides down ^ closed. The foam layer that is formed connects firmly to the fabric tape 5, the film 7 and the side parts 25 as well as with the Seüaiateeile 6 of slide 1.

The part of the foam tape completed in this way 'wanders around the tail drum 3 up and from there over the pulley 2 down. When the end of the so educated, filled with the foam layer 52 tube reaches the feed point 24, the film 7 is closed at this point to form an endless belt, the one from the roller 9 next strand of this film is separated. The nozzle 2> is removed after introducing so much starting material 2j5 has been how. it to completely fill in the information provided by the Ji Foil formed tube is required.

It is then an end conveyor belt with a foam layer completed. .

It is also possible that when producing such a Foam conveyor belt with the waffle pattern Foil 7 with the distance corresponding to the foam layer 22 above the fabric tape 5 and the film 1 is moved.

' Patent claims:

109822/1520

SAD OfIIGfNAL

Claims (1)

P ate η ta η s ρ r ü ehe . Process for the production of a conveyor belt with a 'ßchaurustoffschicht, which has a weapon 1-like sexton on the carrying side with closely spaced depressions and elevations and is covered by a thin, abrasion-resistant, drawn into the depressions, while it is covered on the running side with Ainet, tensile means is connected. characterized in that first a film (7) forming the thin, abrasion-resistant layer is provided with the waffle pattern, int <cm it is placed on a base (y) with depressions (lo) which correspond to the elevations of the waffle pattern, hung up and after heating in these depressions, which are connected to a vacuum generator (lö) are connected, is sucked in, and since κ- then between the thus formed film (7) and an enveloping body (5, 1) located at a distance therefrom, the starting material (22) for the foam layer (;, 2) is introduced, which is when foaming with the Foil and the enveloping body connects. Method according to claim 1, characterized in that],: a foil (1) forming the reverberant element is applied to a fabric (5) forming the tensile strength agent on the running side will. Method according to claim 1 or 2, characterized in that daυ for the continuous production of the conveyor belt which the wear-resistant layer on the tra, side jlldenc't; Foil (7) is moved over a rotating roller (9), ».clclie forms the original layer for the production of the wafer holder, and dal., the running from the roller film (7) and the Hüllkör by (1, ^) forwards at the same speed between them the Au3 (, -2) aufachäuiiit. 10 9822/1520 4. The method according to claim 5, characterized in that dai = i the envelope as an endless J3and (1, 5) over two Umlktr ornme In (2, ^) revolves and those on the carrying side is located, hit the waffle pattern provided foil (7) then, hunt them down with you for one, Hullkürper fully circulated to the assembly point (24), closed into an endless ribbon. 5. The method according to claim> or 4, characterized by, -, e, approx ... the foil (7) on the side of the route is wider is than it corresponds to the finished conveyor belt, and there during their movement between the roller (9) and the Issue point (27) their side parts (25) in the direction of eng Hül! Körper (1, 5) .- .. are swiveled so that they To finish off the foaming layer on the side (J2 absorbing η Rau ^ ey serve or at least oeitra ^ en. ■ 0 .. Vex'fanren according to claim 2 and> or 4, characterized in, ΟΆ,. , Which on the fabric (5) on _t jebraclite film (1) is wider than it corresponds to the finished conveyor belt, and ao,.; Choosing their! locomotion, before it reaches the feed parts (24), its side parts (υϋ) are pivoted in the direction of the film (7) on the tra ^ side so that it lasts for the lateral closure of the Schauriistoffschicht (32) receiving space serve oöör. v / enip'stens beltrasv.en. 7. 'Before moving en "according to claim 5 and 6, characterized denotes ge. As., The two sheets (7, 1) to be at Verschvienken Uberen and zusammenücsclivieilöt. ■ ';. Roller for implementation; of the method according to one of claims 2 to 7, characterized in that the depressions (10) located on the shell of the folds (y) through channels (20) with a sub-pressure ßi 'located in the roller > -, eu, -; er (IL) ani'.schlossenen .Hohlraum connected alnti una in dom cavity a non-circumferential insert body (14) f, o ar-i, ool ^: o "ivjt is, Oua or each the MUndun; en oor- 109822/1520 bath jerii ;; en canals blocked, ν. ei ehe fc-olone.-Ί Yirtieiur., οι. (lO) are assigned, from c.etiex! die VoIiG (() ocL .; expire von der V / alzo he raus ^ eIiO be η ι; ir ά. BAD ORtGtNAL 109822/1520. ί /