DE3401336A1 - DEVICE FOR FASTENING A FLEXIBLE PRINT PLATE - Google Patents

Description

VED Kombinot Polygraph Iß,

"VVornor Lambors ' ⁴ Leipzig.' _{Tj = s Fr} > _r

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Device for attaching oinor biogsamon pressure plate application of the invention!

The invention relates to oino device for Bofootigon einor flexible printing plate on the plate cylinder © inor Rotations printing machine «

Characteristics of the known technical solutions:

It ioi oino arrangement for the oofostigung of flexible printing plates known (DiH-PS 1 960 63ß) , the at least one gap in the platon cylinder * axially vorlaufondon, with an opening inclined in the threatening direction of the platon cylinder and penetrated by a positioning pin for the printing plates fastened in the platron cylinder body Width dor thickness scwoior printing plates foositzt _ff in dom the two depending on the inclination dos Spalto3 vorgobogenon, with Schlitzon for the positioniorstifto equipped account dor on the circumference of the plate cylinder onliogondon printing plate without additional technical means.

The problem with the door arrangement is that to prevent the two edges from slipping out of the door during the printing process from the gap, this must be made very narrow. Dies® Fordsrung has oinon great effort for Herotellung Saino to ^ row. Later on in the printing process,

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utohondo Voroohmutxungon only rolntiv oohwiorig auo him ontfornt wordon. Extra ordom ootzon dio in dom gap relatively free bowoglichon account of the printing plate an increase of the printing speed gowiooo Gronzon.

Aim of the invention:

The aim of the invention is 03; the manufacture of the device simplify, to reduce the effort for your maintenance and to increase your functional sichorhoit.

Essence of the invention:

The invention is based on the task, a device for mounting oinor biogoomon printing plate on the plate cylinder oinor rotary printing moschino with at least oinom in the plot tone cylinder axially leadingon, with its opening in Threatening direction dos Plattonzylindoro gonoierter and from in lotztorom bofostigton Positioniorstifton for the an Ihrom fronton and hintoron Endo with oinor gobogonon and to the Pooitionierstifte suitably slotted account vofsehono pressure plate puked through To make the gap in such a way that the gap can be mechanically manufactured rationally and later cleaned without problems in him insbo8ondore the vorlaufondo edge of the printing plate in for don Druckvorgong will keep the required level and for puffing Rotary printing machines also have the option to add Fixation of the trailing edge of the printing plate bo-, stands.

Dio3 is orroicht, in accordance with the invention in the gap gogenüber diooom by at least twice the thickness of the print plot schmoloro bar is arranged, which has holes with a Spiolpaoeung for the positioning pins.

Due to the arrangement of an easy-to-manufacture performance in the This gap can vary depending on the thickness of the loioto broadly stated that or through oinon simple milling

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gong in dom Plottonaylindor horzuotollen ict. Since with ctoi <ion- the speed of rotation doo Plsttonzylindorc, inobooondore the fixation of the leading London account of the printing plate on dom Plattonzylindor is goföhrdot. Does the dioobcplus'dio "oio due to the opozlellon inclination doo Spalroo gorichtoto, auo the centrifugal force dor Loiete rooultiorondo Kroftomponto positive auc."

Doo Elnochiobon dor curved Konton dor pressure plate in don Gap is favored if, according to the invention, the Leioto on the circumference dos Plotton cylinder © on one or both lengthways Qooiton olne Faso or Rundüng wears. .

In order to avoid excessive loading of the positioning area holding the loisto for the printing plate in the printing process lot OO, it is advantageous if the bar is set back from the circumference of the platoon cylinder according to the invention.

The cleaning doo Spoltos is automatically activated if ^: the Loioto can be ontfornt beforehand or the gap. The gloicho procedure is possible with the Wochcol dor printing plates, in that the dio is previously printed out of the gap ontnommone bar jowoils after hanging the boldon account dor printing plate in the gap. For this purpose, the Qohrungon for. The positioning pins in the bar in the same longitudinal direction as an elongated hole orwoitort, the Leisto mounted outside the cladding dor Positioniorstifto boi in a gorichtoton slot in the interior of the gap, the elongated hole and the slot being at least the width of the diameter & oro dor bores.

In diooom case it is twocks to avoid a loss of hearing the Leioto ous dom gap of the plotter cylinder according to the invention on the forehead soito of the bar on the side of the plate cylinder releasably attached stop arranged.

To relieve "the Positionxeretifte and additional Sicho-

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tion dor Loloto can orfindunaoriar.u> ß ooitlich on the flat cylinder oino oinon Aboatz dor Loicto überorgrolfondo odor in oino borehole or otirnooitigo recess dor Loioto oingroifondo Haltorung be detachable.

Should dio Loioto often, e.g. B. on the occasion of jodom Druckplattonwochaols, ouo dom split ontnommon been, eo ict oo favorable, According to the invention, the holes for the positioniorotifto in the Loioto to jo oinon in the Innore dos Spaltoo gorichtoton Slot mindostons gloichor Broito are there to go dio Loioto jowoils directly led into the gap or from it ontnommon wordon can. Daboi must in the gap dio Loieto an boidon forehead coiton in boroits boochriobonor Weiso with the help of oinor Haltorung gogon oin falling out gosichert wordon. Dioeo variant biotot itself bosondors for oin woitostgohend spiolfroio's impressions on Loisto in don boroitö vorhor with don boiden canton the printing plate bostückton gap on what oi on oinon secure seat the printing plate on the flat cylinder boi high pressure goochwindigkoit has a positive effect.

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Both the impression of Loisto in the gap after Dom Einlogon dor account dor pressure plate is orloichtart as well as dio on dio canton auogoübto Klomm effect is vor3tärkt, wonn © I orfindungsgomäß the Quorechnitt dor Loi3to in Direction soinor dom Bodon dos Spaltes Zugowandton Soito tapered in a wedge shape. Boi oohr hohor Druckgoschwindigkoit is due to the preconditioning centrifugal force of the pressure plate also oino spiolfroi trailing edge of the printing plate lying in the gap for the printing process of Vortoil, for which the wedge-shaped bar is particularly suitable.

At least the impression oinor Lois te with vorzugwoiso rochteckigom cross-section in the gap can be orleichtort, if according to the invention, the Loisto on the floor of the Spaltes on oinor or, on both long sides a Faso or · rounding In this case, the groin is around the circumference of the

Plotton cylinders koino Fooon or, Rundungon orfordorlich.

For hoho Oruckgoöchvlndigkoiton ict cc cheap, wonn orfindungsgomüß dio Loioto jowoilo an dor in the direction of the ear doo Plottonzyllndoro Vorlaufondon Kanto dor printing plate choicewoio © kraftochlüoaig onliogt. As a woitoror Vortoil, there is also a boi diooor variant that after dom insertion dor in direction of rotation vorloufondon Kanto dor pressure plate in don gap dio gogon diooo account pressed bar on hersor an doron Soito good © Bodigibleon for dos Einochiobon dor nachloufondon Kanto dor pressure plate offers.

This is also advantageous in terms of technology, indomal or indigenous dia don Plattonzyllndor eoitlich üorrogondo Loieto with ihror in threatening direction dos Plattonzylindors vorlaufondon Soito gogon one in oinom on the frontal ooito dos flat cylinder attached Haitor guided screw supported,

In a preliminary connection with oinom Auewochsoln dor ledge, in diosom case the last © simply falling out of the gap eichorn ^ wonn, orf indungogomäß the screw in if oinom paragraph smaller diameter compared to its diameter outside of the ledge engages in a hole of the ledge with play «,
160

Execution boiepieli ·.

The invention is described below in an exemplary embodiment werdon explained in more detail. In the accompanying drawing zoigen i

Fig. Ii a cross section of the platoon cylinder with a Device for fastening dor pressure plate in the form of an arranged in oinom gap on the , 70 Positioning atifton sliding bar

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Flg # 2 j oino dao Horauonahmon dor Laioto quo dom gap or » possibleondo Gogtaltungsvorionto dor Loisto

Fig «3: oinon dio Loioto gomöß Fig. 2 oich'orndon stop 175

Fig. 4: oino additional holder for dio otirnooitig with oinom paragraph vorcohono loioto

Fig. 5; dio Holtorung gomäß section AA of Fig. 4 with additional dash-dot portor representation oinor
woitoron GootaltungomÖglichkoit dor Leioto

Fig, 6: oine additional holder for the forehead base with

a recess spared bar
185

Fig. 7: Oino from the dome gap removable bar with a wedge-shaped cross-section

Fig. 8 »oino gogon the leading edge of the printing plate
pressed Loioto

According to Fig. 1 is in dom PlattonzylinÜar 1 oin axially forward • fonder, with soiner opening in dor with a pillar markiorton Drohrichtüng doo flat cylinder 1 inclined gap 2 arranged. Dioser can vary depending on doc number and arrangement of the printing plates 3 in the width of the plate cylinder 1 ontwodor over dio gosamto or only oinon part of the width dos Plattonzylindors 1 extend.

The gap 2 becomes soinon soiton surfaces 4; 5
penetrated by Positioniorstifton G, which are pressed into a corresponding bore 7 dos Plattonzylindors 1
and finish this flush on the circumference.

In the gap 2, oino is at least twice the thickness
the pressure plate 3 narrower bar 3 arranged, dio for

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dio Pooltioniorotifto β jowoilo oino Oöhruno Φ «nit oinor Spiolpoooung booitzt, eo that pich dio not on dom Dodon doo Spaltoo 2 oufsitzondo LoiGto O * depending on don rüumlichon Gogobonhoiton in the gap in axiolor direction dor Pooltioniorotifto 6 vorochiobon can.

Dio vorhor in oinor booondoron device gobogonon both Account dor print plot 3. oind jowoile in don von dor bar

0 and the Soitonfläche dos Spaltoo 4 or 5 bogronzton intermediate space 10; 11 Qin £ joochobon, woboi sio in the area of the printing plotter 3 on dom Plattonzylindor 1 juetiorondon Pooitioniorotifto G jowoils an oonkrochton slot 12; 13 Oo oitzon. Daboi becomes the one in the threatening direction dos Plottonzylindoro

1 boim printing process booondoro boonopruchto vorlaufondo account 14 dor pressure plate 3 due to dor'Noigung dos Spaltoc 2 untor oinom cpitzon angle and the less loaded nachloufondo Kanto 15 untor oinom blunt Winkol to the circumference dos Plottonzylindoro 1 gohalton.

If two printing plates 3 are to be attached to it in the circumferential direction of the platoon cylinder 1, two devices according to the invention are to be arranged on its circumference, two 180 ° in relation to one another. In the diosom case, the trailing edge 15 of the printing plotter 3 in FIG. 1 would belong to the two-tone printing plotter.

To facilitate the Einstockon dor Canton 14; 15 dor printing plate 3 let dio Leioto 8 on the circumference dos plate cylinder 1 boidorcoitig with each oinor bevel 16; 17 provide.

When the printing plate 3 rests on the plate cylinder 1, the printing plate 3 is introduced into the intermediate area 10 at a red dio vorlaufondo canto 14. The bar lies against the opposite Soitenflacho 5 dos Spaltes 2. Flxiorung dor printing plate 3 in the axial direction of the plate cylinder 1 takes place through the dome slot 12 of the printing

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plotto 3 oitzondon Pooitionioratift * G. 250

Untor Abrollung doo Plottonzylindaro 1 vvircl dio biogcomo Printing plate 3 around the circumference doo Plattonzylindoro 1 horumgo guided and with ihror trailing London account 15 to oinoni Vorochiobon dor Loioto 8 ouf don Pooitioniorotifton 6 gogon di Vorlaufondo account 14 in don Zwiochonraum.il oingoochobon.

To oino to hoho Boloatung dor Positionierstifto 6 to vormoidon, iot dio Loioto 8 gogonübor dom circumference of the flat cylinder otwoa backgoootzt.

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With ctoigondor Orohzohl doo Plattonzylindors 1 wächot dio on dio vorloufondo Kanto 14 dor Druckplatto 3 gorichtoto Kroftkomponto dor centrifugal force dor Loisto 8, whereby dio Fixation of the printing plate 3 on the dome plate cylinder 1 curved will.

Fig. 2 shows the variant oinor auowochsolbaron Loisto 3 in montiortor position. In diooom case, dio are drilling on 9 for dio Positioniorstifto 6 in dor Loisto 8 in doron gloichon Longitudinal direction to jo oinom elongated hole 18 erwoitort, the outside of the position of the positioning pin o 6 box assembly

_r -y tor Loisto in oinon in the Innoro of the gap 2 gorierteron ^v 'slot 19 merges.

With this design, the Loisto 8 can be used for cleaning purposes doo Spoltos 2 without difficulty from lotztorom ontnommon wordon. It is also possible to change the printing plates, first in both Canton 14; 15 in the gap 2 oinzuhangon, and orot subsequently dio Loisto 8 in don gap 2 to be pressed in and by oino corresponding longitudinal presetting to lock on the positioning pin 6.

In order to prevent the bar 8 from falling out during the printing process, this is done by goeignote

tochniocho Mittol Qogon oino Lanaovoroohiobung to oichorn.

Fig * 3 zoigt to this oinon on dor StiVnooito dor Loiato 8 nnlic · gondon, to the side of the plotter cylinder 1 by means of a two-way screw 20; 21 Dbor Longlöchor 22; 23 bofootissten Anochlog 24. Qioeer can also onteprochondor constructive change Can be tilted or tilted without taking into account the possibility of oinor Arrotioration in dor dio Loiato Q securing position on the flat cylinder 1 bofostigt coin.

Fig «, 4 zoigt for the additional security dor Loisto 8 oino mittolo Schroubon 25; 26 over long hole 27; 28 ooitlich on the platon cylinder 1 bofootigto Haltorung 29, dio oino recess 30 booitzt, in dio oin Qtirncoitig angoordnotor Abcatz 31 dor Loioto Q so oingroift that lotztoro only Bowogungcossiblekoiton in the axial direction dor Positionieretifto S bocitzt. VVio Fig. 5, the sectional view to Fig. 4, to ontnohmon 1Ot ₄ filled daboi dio Haltorung 20 also the task of the stop 24 according to Fig. 3 in the sense of securing the Loioto 8 gogon oino lengthwise advance.

The Haltorung .29 can also be tilted and tilted to make it easier to spend the week at Loicto 8.

In Fig. 6, the reverse of Fig. 4 applies, even though I 2 screws 32; 33 on the flat cylinder 1 post-mounted bracket 34 with oinom pin 35 analogous to the positioning pins ß in oino bore 36 dor don flat cylinder 1 coitlich üorrogondon Loiote 8 a. Boi frequent changes of the groin . 8 should be beneficial to bore 36 as otirnooitig offono Recess or dio holder 34 with oinom single-sided gold-plated pin 35 or in accordance with FIG. 4 with a shoulder in the axial direction of the bore 36 be designed to be displaceable.

Fig. 5 shows in dash-point representation the oi-

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nom in doo Innoro doo Gpoltoo 2 gorichtoton, raindocvono gloichbroiten slot 37 erwoitorton hole 9 dor Leioto 8 for dio Pooitioniorotifto G. Dio Loioto 8 must be in this one Foil on boidon endon has been secured by jo oino bracket 29 gogon a Horouofollon quo dom gap 2. Dioso solution 3varianto biotot don Vortoil, that for example dio Loisto 8 relatively oinfoch boi iodorn change dor pressure plato 3 from dom gap 2 ontnommon and also woitootgohend opiolfroi in don beroito before with don boidon edges 14; 15 dor pressure plate 3 populated gap 2 can be imprinted. In addition, it should be to dio Loisto 8 at a cheaper place at dom Bodon doo Spaltos 2 Zugowandton Soite on both sides one Faso 38; 39 bositzon (Fig. 4).

Dio pluses gcnannto variant biotot advantages for oinon gichoron Seat on the pressure platform 3 with high pressure goochwindigkoit.

Fig. 7 zoigt oino Loisto 8 ,, doron cross section is in the direction ooinor dom Bodon doo Spoltos 2 zugowandton Soito wedge-shaped pre-young. Dio fully pressed into gap 2 Leisto 8 creates oino spiolfroio Anlago boidor Canton 14; dor printing platform 3 to don jowoiligon Soitonflachen 4; 5 doc Split 2, so that dio gobogonon. Do not loosen edges from gap 2, even with high pressure speeds.

One possibility oinor additional securing of the boi hohon Druckgoschwindigkoiton booonders debited advance London account 14 dor Druckplatto 3 zoigt Fig. 8. A at the front soito doo Plottonzylindoro 1 with two screw 40; 41 bofostigtor holder 42 has a Gowindo hole in which a screw 43 is guided, which rests on the soite dor lotzterom soitlichüberragondon strip 8 leading in the threatening direction of the plate cylinder 1. To insert the leading edge in the direction of rotation of the flat cylinder 1

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14 dor Druokplotto 3 iot dio screw 43, dio ungohindorco Dowogllchkolt dor Loictc 8 in gap 2 garantiorond, threatened back in Maltor 4.2. After completing the process, dio Loioto 8 is pushed through notification dor screw 43 gogon the pre-3CÖ lnufondo account 14 dor printing plot 3, whereby oich gloichzoitig dor Zwiochonroum 11 for dao Einotackon dor
trailing edge 15 of the printing plate 3 vorlarge place.

'In the case of oinor eccentric colbaron Loloto 8, for lotztoro dio screw 43 additionally takes on oino stop function, indom she with oinom Aboatz 44 goringoron Durchmooooro gogonübor herom Durchmoosor outside dor Loloto 8 in oino hole 45 dor
Loioto with play oingroift and thus all sowing possibilities dor Löiato 8 except in the longitudinal direction dor Positionioretifto 6 undorbindot.

Aufotollung dor vorwondoton Dozuoozoichon:

1 Plartön cylinder 34 bracket 2 Spolt 35 'Pen 3 printing plate '36 drilling 4th Seltonfläche dos Spaltes 2 37 slot 5 38 Faso 6th Pooitionior pen. 39 7th drilling 40 Screw 8th Loioto 41 H 9 drilling 42 Haltor IO Space 43 Screw 11th 44 unit volume 12th slot 45 drilling 13th 14th vorloufondo account 15th trailing Ksnto 16 Faso 17th 10 Long hole 19th slot 20th Schroubo 21 22nd Long hole 23 24 attack 25th screw 26th M. 27 Long hole 28 H 29 Haltorung 30th Recess 31 unit volume 32 screw 33

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Claims (13)

- 42 ~ P 166 Invention onopruch: l.j device for Bofootigon oinor biogcamon Druckplatto on dome plotter cylinder pinor Rototionodruckmaochino with mindoctono oinom axially leading in the plot cylinder, with coinor opening in threatening direction dos Ρίοΐ-tonzylindoro gonoigton and from in lotztorom bofootigton Pooitioniorstifton for dio on Ihrom Vordoron and Hintoron Cndo with jo oinor gobogonon and to don Positioniorctifton pocsond goschlitzton edge vorsohono printing plate durchaotzton gap, gokonnzoichnot due to the fact that in dor,) Gap (2) oino gogonübor diooom to mindootons double Thickness of the printing plate (3) or loioto (8) ■ ongoordnot i3t, dio Dohrungon (9) with oinor Spiolpaesung for dio Pooitioniorstifto (6) booitzt. 2. Device still point 1, gokonnzoichnot in that dio LoiGto (8) on the circumference of dos Plattonzylindors (1) on oinor or boidon Längoeoiton oino Faeo (16; 17) or Rounding. 3. Device according to item 1, gokonnzeichnot in that the Loioto (8) gogonübor dom circumference dos Plattonzylindors (1) is reticent. 4. Device according to item 1, gokonnzoichnot in that the hole (9) for the positionior pin (6) in dor Loieto (8) in the same longitudinal direction as jo oinom Long hole (10) are orwoitort, dos outside of the stumble 400. lung dor Positioniorctifto (6) boi montiortor Loisto (0) in oinon in dos Innoro dor »Spaltes (2) directed The slot (19) is made, with the elongated hole (10) and the slot (19) mindoctona the width of the diameter dor holes (9) bositzon. P 156 5. Device according to point 1 and A, gokonnzoichnot in that on dor Stirnooito dor Loioto (8) oin soitlich on the plotter cylinder (1) releasably bofo'otierter stop (24) is angoordnot. 6. Device still point 1, gokonnzoichnot in that Also on the plotter cylinder (1) or a subscription (31) dor Loiste (8) attached via orgreifondo bracket (29) löcbcr is" 7. Device according to item "1, gokonnzoichnot in that to the side of the plotter cylinder (1) cino in oino hole (36) or, forehead coitigo recess dor Loisto, (C) engaging © Retainer (34) removably attached iGt. 8. Device according to points 1 and 6 or 7, characterized in that dio ßohrungon (9) for dio Positioniorstifto (6) in dor Loicto (8) to jo one in the Innoro dos Spaltes (2) gorichtoton slot (37) mindostons equal Width are expanded. 9, Device according to pt. 1 and 4 "odor 8, characterized gekennzoichnot ,, that dor cross section dor Loisto (8) in the direction dos soinor dom Bodon gap (2) facing Seito tapered wedge-shaped. 10. Device according to points 1 and 4 or 8, konzzoichnot by the fact that the bar (.8) at the Bodon doe gap (2) on oinor or boidon Längosoiton a bevel (38; 39) or rounding, 11. Device according to item 1, gokonnzeichnot in that dio Loiste (8) Jowoils an dor in threatening direction dos Plattonzylinders (1) Vorlaufonden Kanto (14) dor Pressure plate (3) anliogt force-fit. 12. Device according to points 1 and 11, Qokonnzaiohnot thereby, that olch dio don Plattonayllndor (1) coitllcii Uborragondo Loicto (0) with her or in the direction of the dos Plottonzylindoro (1) Vorlaufondon · Soito gogon oino in oinon on dor Stirnoolta doo Plattonzyllndorc (1) bofostigton Holtor (42) goführo screw that supports (43). 13. Device still item 1, 4 or S, 11 and 12, characterized in that the screw (43) with oinom paragraph (44) gorlngoron Durchraoooers gogonübor their Durchmosoor outside the Loioto (8) in a bore (45) of the bar (8) embedded with play. For this purpose 3 sheets of drawings