SE190896C1

SE190896C1 -

Info

Publication number: SE190896C1
Authority: SE
Publication date: 1964-01-01

Description

Uppfinnare: G S Hellberg mom modern bokforings- och halkortsmaskinteknik är det av vikt att alla perforeringar aro utforda med storsta precision. Detta galler saval vid perforering av runda, ovala, fyrkantiga o. dyl. hal som vid framstallning av s. k. vikningsperforeringar bestaende av ett antal i rad liggartde slitsar tvars Over en pappersbana. PS vikningsperforeringar stallas numera mycket hoga krav vad betraffar ratvinkligheten i forhallande till pappersbanans kanter, enar vid vissa typer av faktureringsmaskiner det ofta fordras att mer an tio bladpartier mellan vikningsperforeringar i en pappersbana skola sammanvikas till en bunt, dar ovriga perf oreringshal skola vara belagna exakt mitt for varanictra och pappersbladens kanier vara noggrant parallella. Alla dessa ovannamnda fordringar ktuma runnera i viss utstrackning tillfredsstallas ph ko.nventionell vag med stansmaskiner utrusta:de med vidlyitiga regleringissystma. Produktionskapaciteten Sr dock forhallandevis lag. Inventor: G S Hellberg with modern bookkeeping and slip card machine technology, it is important that all perforations are challenged with the greatest precision. This applies to saliva when perforating round, oval, square and the like. slippery as in the production of so-called folding perforations consisting of a number of consecutive slits across a paper web. PS folding perforations are now subject to very high requirements as regards the steering angle in relation to the edges of the paper web, in certain types of invoicing machines it is often required that more than ten blade portions between folding perforations in a paper web should be folded into a bundle. for varanictra and the rabbits of the paper sheets be exactly parallel. All these above-mentioned requirements ktuma runnera to some extent are satisfied ph conventional convention with punching equipment: those with wide-ranging regulatory system. However, the production capacity is relatively low.

Foreliggande uppfinning avser att a.stadkomma flerfaldigt storre pro duktionskapacitet an tidigare varit mojligt under uppratthallande av en mycket hog grad av perforeringsprecision. Uppfinningen arbetar enligt en fran stansning helt avvikande princip. Det Sr fora kant att anordna en roterande S. k. patrisvals, pa vilken en mot de blivande perforeringarna svarande reliefmonstring foreligger, varvid i fysisk kontakt med namnda patrisvals arbetar en verktygsvals med motsatt rotationsriktning, och varvid papperet Sr fart mellan patrisvalsen och verktygsvalsen. Sistnamnda vals har givetvis en sadan rotationshastighet I forhallande till .patrisvalsen att en papperet bearbetande relativrorelse foreligger mellan valsarna, varvid papperet Sr anordnat aft folja patrisvalsens periferiyta i dennas rorelseriktning. PS grand av att patrisvalsens arbetsytor arbeta i metallisk kontakt med verktygets arbetsytor fOrorsakas mycket stor forslitning av namnda detaljer. De perforeringshal, som erhallas med en dylik anordning aro langt ifran tillfredsstallande vad betraffar noggrannheten i halkanterna och kan endast anvandas for framstallning av girlanger, hyllremsor o. dyl. Vi-dare ernas en mycket begransad produktionshastighet, emedan verktyg och patris genom friktionen uppvarmas och den mekaniska kontakten ytterligare 8kas med annu mer varmeutveekling och forslitning som MLA. Praktiska experiment ha visat att en pS ovan n'amnt satt beskaffad maskin icke kan producera ens 10 % av vad en modern maskin utrustad med stansar, dynor eller andra perforeringsanordningar av traditionell utformning kan prestera. The present invention aims to achieve many times greater production capacity than has previously been possible while maintaining a very high degree of perforation precision. The invention operates according to a completely different principle from punching. It is advisable to arrange a rotating so-called particle roller, on which there is a relief sample corresponding to the future perforations, wherein in physical contact with said particle roller a tool roller works with opposite direction of rotation, and wherein the paper is speed between the particle roller and the tool roller. The latter roll has, of course, such a rotational speed in relation to the particle roll that a paper-processing relative motion exists between the rollers, the paper Sr being arranged to follow the peripheral surface of the particle roll in its direction of movement. PS due to the fact that the working surfaces of the particle roller work in metallic contact with the working surfaces of the tool, very great wear is caused by the said details. The perforation halls obtained with such a device are far from satisfactory in terms of the accuracy of the slip edges and can only be used for the production of garlands, shelf strips and the like. Furthermore, a very limited production speed is required, because tools and partitions are heated by the friction and the mechanical contact is further increased with even more heat exchange and wear such as MLA. Practical experiments have shown that a pS above-mentioned type can not produce even 10% of what a modern machine equipped with punches, pads or other perforating devices of traditional design can perform.

Emellertid erbjuder den ovan diskuterade maskinens arbetsprincip manga praktiska fordelar. For att anpassa en dylik maskintyp efter moderna produktionskrav forfares enligt foreliggande uppfinning sä, att nagon metallisk kontakt mellan patris och verktyg icke foreligger, dvs. med ett minimalt spel mellan resp. arbetsytor, varigenom forut namnda forslitning elimineras. Genom en dylik atgard kommer dock de salunda bildade halens kanter att vara forsedda med en an kraftigare fiberlugg an med den tidigare installningen. Vidare finnes i ett dylikt fall icke flagon garanti for att verktyget helt bortarbetar alit material vid de avsedda perforeringspartierna, utan oftast kvarbliver en tunn pappershinna. Dylika pappershinnor uppsta. ofta , cla oregelbundna m8nster forekomma ph' patrisvalsen, vilka genom verktygets paverkan orsaka sma vibrationer, som inverka pa perforeringsresultatet. En dylik perforering Sr praktiskt oanvandbar, och kan, om den forekommer vid halkort, Ora dylika helt obrukbara. However, the working principle of the machine discussed above offers many practical advantages. In order to adapt such a type of machine to modern production requirements, it is according to the present invention that no metallic contact between the partition and the tool is present, i.e. with a minimal play between resp. work surfaces, whereby the aforementioned wear is eliminated. By means of such an action, however, the edges of the thus formed tail will be provided with a stronger fiber pile than with the previous installation. Furthermore, in such a case there is no flawed guarantee that the tool completely removes all material at the intended perforation portions, but usually a thin sheet of paper remains. Such paper membranes arise. often, irregular patterns occur on the particle roller, which by the action of the tool cause small vibrations, which affect the perforation result. Such a perforation is practically unusable, and can, if it occurs with slip cards, make such completely unusable.

Det finns Sven anclra faktorer, som be- 2— — gransa en med endast ett bearbetningsverktyg utrustad maskins anvandning, namligen produktionshastigheten. Genom att driva upp produktionshastigheten hos en dylik ma-skin, dvs. att giva patrisvalsen en stor periferihastighet, kommer den relativa hastigheten mellan patrisvalsens arbetsytor och verktygets arbetsytor att bliva mindre, varvid perforeringsresultatet ytterligare forsamras. Genom att efter forstnamnda bearbetning ytterligare bearbeta papperet med ett verktyg i motsatt riktning mot det forstndmnda bortarbetas saval namnda fiberlugg som de tunna pappershinnorna i perforeringarna. Perforeringsarbetet blir shlunda uppdelat i tvh faser. Harigenom blir man i stor utstrackning oberoende av pappersbanans hastighet. Visserligen konuner vid h8g produktionshastighet det forsta bearbetningsverktyget endast att myeket ofullstdndigt utfora perforeringen, men papperet blir anda tillräckligt bearbetat ftir att det andra verktyget skall fullborda perforeringsarbetet och astadkomma en skarpkantad perforering. There are several other factors that limit the use of a machine equipped with only one machining tool, namely the production speed. By driving up the production speed of such a machine, ie. to give the particle roll a large peripheral speed, the relative speed between the working surfaces of the particle roll and the working surfaces of the tool will be smaller, whereby the perforation result is further narrowed. By further processing the paper after the first-mentioned processing with a tool in the opposite direction to the first-mentioned, all the fibrous pile is removed as well as the thin paper sheets in the perforations. The perforation work is shlunda divided into two phases. As a result, you become largely independent of the speed of the paper web. Admittedly, at a high production speed, the first machining tool can only perform the very incomplete perforation, but the paper is still sufficiently machined for the second tool to complete the perforation work and achieve a sharp-edged perforation.

Foreliggande uppfinning skall nfirmare beskrivas med hanvisning till en pa bifogade ritningar schematiskt framstalld utforingsform av en perforeringsmaskin enligt uppfinningen. The present invention will be further described with reference to an embodiment of a perforating machine according to the invention schematically represented in the accompanying drawings.

Fig. 1 visar fran sidan den inbdrdes ordningen av de i perforeringsanordningen ingaende delarna. Fig. 2 och 3 visa i forstorad skala olika steg I perforeringshalframstallningen. Fig. 4 visar ett spanavskiljande verktyg i form av en fras. Fig. 5 Sr en axialseklion genom patrisvalsen och frasen. Fig. 1 shows from the side the internal arrangement of the parts entering the perforating device. Figs. 2 and 3 show on an enlarged scale different steps in the perforation half production. Fig. 4 shows a chip separating tool in the form of a phrase. Fig. 5 Sr an axial clion through the particle roller and the phrase.

Sasom visat i fig. 1 Or en pa en magasinspole 1 upplindad pappersbana 2 anordnad att lopa Over en frilopande vals 3 och runt omkretsen av patrisvalsens 4 eylindriska yta 5. Valsen Or forsedd Tiled sma utstaende nab-bar och/eller still 6, vilka Oro anordnade i ldgen som svara mot perforeringshalens 'igen ph pappersbanan, och vilka ha mot perforeringshalens form svarande 5.ndytor. Nabbarna ha en hojd Over valsens cylindriska yta, som endast är obetydligt, t. ex. 0,1 mm, star-re On papperets tjocklek men ph ritninge,n visas i overdriven skala. I det visade exemplet ha nabbarna en konisk, utat avsmalnande form. Papperet kommer darvid att vila dels ph andarna av namnda nabbar eller stift, dels pa Indian nabbarna beldgna partier av valsens cylindriska yta. Valsen drives och roterar i den av pilen 7 visade riktningen och medtager pappersbanan 2 under sin rotation. As shown in Fig. 1, a paper web 2 wound on a magazine spool 1 is arranged to run over a free-running roller 3 and around the circumference of the cylindrical surface 5 of the patrician roller 4. The roller is provided with small protruding neighbors and / or still 6, which arranged in the ldgen which correspond to the perforation of the perforation tail 'again ph paper web, and which have 5.nd surfaces corresponding to the shape of the perforation tail. The hubs have a height above the cylindrical surface of the roller, which is only insignificant, e.g. 0.1 mm, star-re On the thickness of the paper but ph drawings, n are shown in exaggerated scale. In the example shown, the hubs have a conical, outwardly tapering shape. The paper will then rest partly on the faces of the said knobs or pins, and partly on the Indian knobs exposed parts of the cylindrical surface of the roller. The roller is driven and rotates in the direction shown by the arrow 7 and carries the paper web 2 during its rotation.

Under valsens 4 rotation traffar pappersba,nan forst en cylindrisk frds 8 med suedstallda skar eller knivar 9, vilka Oro avsedda att bearbeta de partier av pappersbanan, som ligga an mot namnda nabbar 6. Frasen 8 roterar i den av pilen 10 visade riktningen och med en mangfaldigt storm periferihastighet On valsen 4, varvid frasens och valsens peri- ferier vid pappersbanan lopa I samma riktning. Avstandet mellan frdsens eggar och nabbamas periferiytor 11 Or sa valt, att knivarna till ungefdr 9/10 av papperets tjocklek intranga i papperet. En anordning for noggrann installning av frasen i forhallande till nabbarnas periferiytor kommer att beskrivas det foljande med hanvisning till fig. 5. During the rotation of the roller 4, the paper web first strikes a cylindrical die 8 with suede-shaped inserts or knives 9, which are intended to machine the portions of the paper web which abut against said hubs 6. The phrase 8 rotates in the direction shown by the arrow 10 and with a multiple storm peripheral speed On the roller 4, the peripheries of the phrase and the roller at the paper web running in the same direction. The distance between the edges of the feed and the peripheral surfaces of the nabbama 11 Or so chosen that the knives to about 9/10 of the thickness of the paper penetrate into the paper. An apparatus for accurately installing the phrase in relation to the peripheral surfaces of the hubs will be described next with reference to Fig. 5.

Sasom framgar av fig. 2 ligger nabbarnas 6 mot frdsen vdnda andyta 11 i en med patrisvalsens axel koaxial cylindrisk yta. Andytan 11 Or forsedd med en skalformig kavitet 12, som begransas av ett ringformigt kantparti 13 av ndmnda yta. Mr en av eggarna 9 forst traffar pappersbanan sker detta vid nab-bens 6 vanstra kant (fig. 2), varvid den sickned i papperet och nar sift storsta nedtrangningsdjup, da den passerar planet genom patrisvalsens och frasens axlar. Under eggens 9 fortsatta rorelse i pilens 10 riktning kommer den att i den salunda uppskurna pappersbanan kvarlomna en uppriven flik 14. Efterfoljande egg salter in strax till hoger em nabbens 6 vanstra kant, eftersom nabben nu hunnit forflytta sig nagot at vanster i pilens 7 riktning. Den utfor nu en likaande skaroperation. Dessa spanavskiljande skarningsoperationer fortlopa dada tills nabben 6 och motsvarande parti av pappersbanan passerat frasens arbetsomrade. Sasom ovan namnts, nedtranga eggarna i papperet till ungefar 9/10 av dettas tjoeklek, varvid papperet forsvagas, sa att de aterstaende fibrerna rivas bort tillsammas med de avskilda spanen, sO att genomgende hal bildas. Kaviteten 12 har till andamal att minska sjalva skErningsarbetet, sh att ej hela det pa nabben befintliga papperspartiet behover uppskaras utan endast papperets mot ytan 13 anliggande tie-hr. As can be seen from Fig. 2, the end surface 11 of the hubs 6 facing the forearm lies in a cylindrical surface coaxial with the axis of the particle roller. The end surface 11 is provided with a shell-shaped cavity 12, which is delimited by an annular edge portion 13 of the said surface. When one of the edges 9 first hits the web of paper, this occurs at the left edge of the hub 6 (Fig. 2), whereupon it sags in the paper and reaches the greatest depth of penetration, as it passes the plane through the axes of the particle roller and the phrase. During the continued movement of the edge 9 in the direction of the arrow 10, it will leave a torn tab 14 in the thus cut paper web. It is now performing a similar cutting operation. These chip-separating cutting operations continue until the hub 6 and the corresponding portion of the paper web have passed the working area of the phrase. As mentioned above, the edges of the paper are pushed down to about 9/10 of its thickness, whereby the paper is weakened, so that the remaining fibers are torn away together with the separated chips, so that a continuous slip is formed. The purpose of the cavity 12 is to reduce the actual cutting work, so that not the entire paper portion present on the hub needs to be cut, but only the tie-hair of the paper abutting the surface 13.

Efter derma genomskarning av papperet me-deist frasen 8 maste halkanterna finputsas genom avldgsnande av vid kanterna kvarsittande fiberrester, vilka bilda en krans av avslitna fibrer, som stracka sig snett framat i papperets rorelseriktning. For detta andamai Or anordnad ytterligare en fras 15 i ett i forhallande till valsen 4 framat vinkelforskjutet lage. Denna fras Or av samma beskaffenhet som frasen 8 men bar en motsatt rotationsriktning och ungefdr samma periferihastighet som denna. I det i fig. 3 visade ldget har nabben 6 och motsvarande pappersparti genom valsens 4 rotation forflyttats fram till frasen 15. Eggarna 16 lopa hdr i den av pilen 17 visade riktningen, dvs. I riktning mot de vid halkanten kvarsittande fiberresterna, vilka harigenom avskaras tillsammans med den forut bildade fliken 14. Halkanterna rensas p0 detta satt fullstandigt Iran vidhangande fibrer. After this cutting of the paper by the phrase 8, the slippery edges must be polished by removing the fiber residues remaining at the edges, which form a ring of worn fibers, which extend obliquely forward in the direction of movement of the paper. For this purpose, a further phrase 15 is arranged in an angularly offset position in relation to the roller 4. This phrase Or is of the same nature as the phrase 8 but had an opposite direction of rotation and about the same peripheral speed as this. In the blank shown in Fig. 3, the hub 6 and the corresponding paper portion have been moved by the rotation of the roller 4 up to the phrase 15. The edges 16 run hdr in the direction shown by the arrow 17, i.e. In the direction of the fiber residues remaining at the slippery edge, which are thereby cut off together with the previously formed flap 14. The slippery edges are cleaned in this way completely Iran-adhering fibers.

Genom frdsningsoperationen bli halkanterna snett avskurna, sa att de bilda nagot forsvagade kantpartier 17a utanfor andytan — —3 11, sasom framgar av fig. 3. For att uppstyva halkanterna samt giva dessa deras slutgiltiga dimensioner pressas papperet med tillhjalp av en matrisvals 18, som har en belaggning av eftergivande material pa den cylindriska ytan 19, in mot valsens 4 cylindriska yta 5. Nabbarnas mantelytor 19a aro svagt koniska och sa dimensionerade, att de vid batten ha en mot de fardiga perforeringshalen svarande vidd. Vid nedpressningen av pappersbanan mot valsens 4 cylindriska yta komma de forsvagade halkanterna 17a att pressas ut mot och in i de omgivande papperspartierna. Tack vare det kraftiga tryck, med vilket matrisvalsen 18 anligger mot valsen 4, bli perforeringshalcns kantpartier fullkomligt slata. Genom den samtidigt astadkomna sammanpressningen av kanterna erhalla dessa en avsevart stone styrka an vid perforering medelst stansning. Valsen 18 liar samma diameter som valsen 4 och ãr lampligen forbunden med denna genom en kuggvaxel, schematiskt antydd med en streckpriekad linje 20. I och med avslutandet av pressningsoperationen lamnar pappersbanan valsen 4 och nabbarna 6 och faljer matrisvalsens yta ungefar ett halvt vary for att darefter pa kant sail upplindas eller vikas. By the feeding operation, the slip edges are cut obliquely, so that they form slightly weakened edge portions 17a outside the face surface, as shown in Fig. 3. In order to stiffen the slip edges and give them their final dimensions, the paper is pressed by means of a matrix roller 18, which has a coating of resilient material on the cylindrical surface 19, towards the cylindrical surface 5 of the roller 4. The mantle surfaces 19a of the hubs are slightly conical and so dimensioned that they have a width corresponding to the finished perforation tail at the bottom. As the paper web is pressed down against the cylindrical surface of the roller 4, the weakened slip edges 17a will be pressed out towards and into the surrounding paper portions. Due to the strong pressure with which the die roll 18 abuts the roll 4, the edge portions of the perforation neck become completely smooth. Due to the simultaneous compression of the edges, these obtain a considerable stone strength when perforated by punching. The roll 18 is the same diameter as the roll 4 and is suitably connected thereto by a gear shaft, schematically indicated by a dashed line 20. At the end of the pressing operation, the paper web leaves the roll 4 and the hubs 6 and folds the surface of the die roll about halfway to vary. on the edge sail is wound or folded.

Vikningsperforeringar kunna pa liknande salt astadkommas genom att pa patrisvalsens cylindriska yta anordna en med rotationsaxeln parallell rad av stiff med samma hojd Over den cylindriska ytan 5 som nabbarna 6. For att dessa vikningsperforeringar verkligen skola bli vinkelrata mot den fardiga pappersbanan, Aro tvenne fasta knivar 21, fig. 1, anordnade pa ett inbardes avstand lika med den fardiga pappersbanans bredd. Dessa knivar skjuta in i spar 22, 23, fig. 5, i valsens 4 yta 5 on renskara salunda den ursprungliga pappersbanan langs tvenne inbordes parallella, mot valsens 4 axe]: vinkelrata plan, varvid banans kanter bli parallella och nog-grant vinkelrata mot halraden. Harigenom uppnas den vasentiga fiirdelen, att eventuella sidoforskjutningar och vridningar av den ursprungliga pappersbanan icke inverka storande pa den fardiga pappersbanans dimensioner och halfordelning. Folding perforations can be achieved on similar salt by arranging on the cylindrical surface of the patrician roller a row of stiffeners parallel to the axis of rotation with the same height above the cylindrical surface 5 as the hubs 6. In order for these folding perforations to be perpendicular to the finished paper web. , Fig. 1, arranged at a distance equal to the width of the finished paper web. These knives project into grooves 22, 23, Fig. 5, in the surface 5 of the roller 4 and thus clean the original paper web along two inboard parallel, towards the axis 4: perpendicular planes of the roller 4, the edges of the web becoming parallel and accurately perpendicular to halraden. This achieves the essential advantage that any lateral displacements and twists of the original paper web do not interfere with the dimensions and half-distribution of the finished paper web.

For att kunna uppratthalla snava toleranser mellan eggarna 9, 16 och nabbarnas 6 andytor 11 ma ste vissa atgarder vidtagas vad betraffar lagringen av frdsarna i forhallande till patrisvalsen. Hur en sadan lagring praktiskt utfores, skall beskrivas med hanvisning till fig. 5. In order to be able to maintain tight tolerances between the edges 9, 16 and the end surfaces 11 of the hubs 6, certain measures must be taken as regards the storage of the furrows in relation to the particle roller. How such a storage is practically carried out will be described with reference to Fig. 5.

I ett stativ 24 aro lager 25 for patrisvalsens axel 26 anordnade. Frasens axel 29 dr pa liknande satt lagrad i lager 28, vilka i sin tar aro lagrade i excentriska hal i ringar 27, som aro lagrade i stativet 24 och stallbara i olika vinkellagen. Genom att vrida de hada ringarna 27 samtidigt kan aystandet mellan eggarna 9 och nabbarnas 6 andytor varieras. In a frame 24 bearings 25 for the shaft 26 of the partition roller are arranged. The shaft 29 of the phrase is similarly mounted in bearings 28, which in turn are mounted in eccentric halls in rings 27, which are mounted in the frame 24 and are adjustable in different angles. By turning the hated rings 27 at the same time, the distance between the edges 9 and the end faces of the hubs 6 can be varied.

Pa grand av ett praktiskt ofrankornligt glapp I lagren 25, 28 kan emellertid ett installt spel mellan eggarna och nabbarna icke upprdttlianas under rotationen, hur val eggar och nabbar an aro inslipade. Mellan valsen och fra.sen aro darfor kul- eller rullager 30 anbragta, vilka aro forsedda med i fbrhallande till frasens axel noggrant inslipade ringformiga stMskoningar 31, anbragta pa kullagrens lopringar. Dessa skoningar aro avsedda att rulla pa lopbanor 32 anordnade vid andarna av valsen 4 och inslipade i forhallande till valsens axel. Lopbanornas 32 hojd Over valsytan 5 samt skoningarnas 31 avstand fran frase.ns cylindriska yta aro sa valda, att det onskade spelet mellan eggarna och nabbarna ernas, nar skoningarna 31 genom excenterringarna 27 justeras till anliggning mot liipbanorna 32. Genom att frasens stalskoningar med tryck ansattas mot valsens 15pbanor elimineras i huvudsak alla sadana riirelser mellan frasen och valsen, som eljest skulle kunna uppstã pa grand av glapp i lagren 25 och 28. However, due to a practically non-granular gap in the bearings 25, 28, an installed clearance between the edges and the hubs cannot be maintained during the rotation, no matter how the edges and hubs are ground. Ball-bearing or roller bearings 30 are therefore arranged between the roller and the roller 30, which are provided with annular ball bearings 31, which are carefully ground in relation to the axis of the mill, and are mounted on the race rings of the ball bearings. These shoes are intended to roll on raceways 32 arranged at the spirits of the roller 4 and ground in relation to the axis of the roller. Height of the raceways 32 Above the roller surface 5 and the distance of the shoes 31 from the cylindrical surface of the phrase are chosen so that the desired clearance between the edges and the hubs is when the shoes 31 through the eccentrics 27 are adjusted to abut against the raceways 32. against the 15p paths of the roller, essentially eliminates all such movements between the phrase and the roller, which could otherwise occur due to play in the bearings 25 and 28.

Liipbanorna 32 aro nagot bredare an skoningarna 31 for att erhalla samma rullyta aven vid axiella fOrskjutningar av frasen. En dylik forstallning av frasen är ibland nodvandig fOr att erhalla en jamnare forslitning av linivarna. Forstallningen kan utforas antingen manuellt eller automatiskt, i senare fallet darigenom att frasen exempelvis gives en axiellt oseillerande mom rameii for uppfinningen kan det konstruktiva utforandet varieras fOr anpassning till olika praktiska behov och onskemal. Exempelvis kan patrisen yam plan i stallet for cylindrisk, t. ex. vid perforering av papper i arkforrn, varvid antingen frasarna aro forskjutbart rorliga relativt den stillastaende patrisen eller patrisen och pappersarket am tillsammans rorliga relativt de stationart anordnade frasarna. The lip tracks 32 are slightly wider than the shoes 31 in order to obtain the same rolling surface even in the case of axial displacements of the phrase. Such a representation of the phrase is sometimes necessary in order to obtain a smoother wear of the lines. The design can be carried out either manually or automatically, in the latter case by giving the phrase, for example, an axially oscillating frame of reference for the invention, the constructive design can be varied to suit different practical needs and desires. For example, the patris yam plan in the stable too cylindrical, e.g. when perforating paper in the sheet form, wherein either the phrases are displaceably movable relative to the stationary patris or the patris and the sheet of paper are together movable relative to the stationary arranged phrases.

Claims

Patent claim:

Procedure for perforating paper and the like, in which the paper (2) is brought into abutment against a partition (4), which has relief-like portions (6), the end faces (11) of which have a shape corresponding to the perforation tail, and on which face surfaces the paper rests, characterized in that the portions of the paper abutting on these surfaces are first machined by a chip separating tool (8) operating in one direction (10) and then by a chip separating tool (15) operating in the opposite direction (17) while simultaneously moving the embossed portions (6) of the paper and the patris relative to the tools, the chip separating tools having edges (9, 16) which penetrate into the paper to a depth approximately corresponding to the thickness of the paper (2) without being brought into contact with the relief surfaces of the relief parts (11).

A method according to claim 1, in which the paper is suitably in the form of a paper web (2) fed around the circumference (5) of a rotating pad (4) and processed by means of rotating tools (8, 15), characterized in that pap During its continuous feeding, the tool is first machined with a tool (8) which rotates in the opposite direction (10) to the direction of rotation (7) of the padris (4), and then Tried a tool (15) which rotates in the same direction (17). ) as the direction of rotation of the patrician.

3. A method according to claim 1 or 2, characterized in that the working surfaces (9, 16) of the tools (8, 15) are given a considerable stone velocity to the surface (11) of the embossed portions (6) of the patris.

4. Device for carrying out the method set according to any one of patent claims 1-3, consisting of a rotatably mounted particle roller (4), which is provided with relief-like parts, for example in the form of hubs (6), pins or the like, which have against the shape of the perforation tail corresponding to the paper-supporting end faces (11), and rotating chip-separating tools (8, 15) which process the paper (2) on the stalls supported by the end faces (11), can be drawn therefrom. tools in the form of rotatable cutters (8, 15) arranged parallel to the particle roller are coated at and along the circumference of the particle roller (4), and that the first machining tool (8) is arranged to rotate in the opposite direction to the particle roller (4) and the the second tool (15) in the same direction as the particle roller.

Device according to claim 4, characterized in that the end faces (13) of the relief-like portions (6) lie in coaxial, cylindrical surfaces coaxial with the particle roller (4) and are suitably annular.

6. Apparatus according to claim 4, characterized in that each of the rotating tools (8, 15) and the particle roller (4) are provided with roller tracks which are exactly coaxial with the tool and the particle roller, respectively, and which are engageable against each other by radial representation of the tool and the particle roller relative to each other.

Device according to claim 6, characterized in that one of the roller tracks is formed by a shoe (31) on the outer running ring in a ball or roller bearing (30) arranged on the outer tool or partition roller.

Device according to claim 6, characterized in that each layer (28) of the tool (8) is radially deformable by means of an eccentric device (27), which suitably consists of rotatable rings, in which said layers are eccentrically mounted.

Device according to any one of patent claims 4-8, characterized by two fixed knives (21) so arranged in relation to the partition roller (4), that they, in cooperation with this clean paper, had edges. Request publications: Patents iron Germany 254 85 3.