DE1786423A1 - Paper machine - Google Patents

Description

The invention relates to a paper machine with two horizontal mounted breast rolls forming a gap, two couch rolls mounted below the breast rolls and a pair around the looped Bruat and Gttut rollers assigned to one another and through the gap between the breast rolls down into Hori zontal spacing from one another to form a sheet formation zone passing through endless sieve belts, furthermore with one above the breast rolls arranged headbox, which the Paper stock feeds down between the screen belts and with scrapers on opposite sides of the sheet-forming zone are arranged and bear against the inside of the associated screen belt and extend transversely to the sheet formation zone.

A vertically extending sheet formation zone is used in the known Paper machine formed by being attached to the upper end

109882/0102

sw «tor vertical parts opposite each other Bruetwalaen« and near «de * ttnt« r * n end of the stand parts in the same way Gautschwalaen horizontally arranged • ind _/ and around each * Valaenaaar »in a stand an endless sieve belt runs u», there · tttber Aueätaliehe roles are guided on the StAndertcll. The "I at the bottom of the Stlnderteile that are available Gauteehvalsen have a lower Heriaentalabstand sueinander on al · the Bruatwalsen, ae da · svieehen the revolving endleeen SiebbMndern a Blattbildungesene created t * i · ent aufveiet a epreehend decreasing Horisentalabatand. Via a headbox, paper stock flows into the sheet formation area, and along the sheet formation the sheet formation is expelled through the decreasing Heriaontalabetand the sheet formation area. In order to provide the endlee sieve belts and for a virkeaaen Vaaeerenteug, the respective Bruatwalaen and Gautaehwalsen suction valves are arranged, against whose outer surface the sieve belts run off. The Gauteebvalaen are formed in the well-known Papiernaeebine ala äaugwalaen and from one of the Oautaobwalaen the paper web formed in the sheet formation aaone is transferred to a file, which is about an orphan uaOAuft, who is also near the Oauteohwalae

Aue de »Striving, the ole of a newly formed papiafcabn au Tarbeeeanx, who were pictured in a paper hall of the yeretehend Bawrrt is formed, eieh the invention has the The task is divided, a decision is made, by the dt · die Deflection of the paper web from one of the others running files bb and er

109882/0102 ORIGINAL BATHROOM

verbaeeert vird. According to the invention, the task is valid because underneath the subordinate Abatreiferpaaree "Ina transfer provision is missing ₍ because the" bow adheres to a form wire IMt and similarly from the "Form wire from 111 t ·

The design of the invention is characterized by daO Bviaahen deai aioh nftebat dar Oawtaahvalaa Ablanker "nd the Oautaehvalae a suction building close" assigns iat.

The invention has a wide variety of features, since β is in the Gnutachvalsa a feathers holding the bow at dar Qautaehvalme Saußkaaten and a waaaerabfttbrendar Saugkaaten vargeaehen

For the invention it is important that the endless sieve

bKnder Ton den aich nHahat the Oautaahvalaen

Distractors in attention to the Oauteahvalsen am diverge · ™

The invention is described in the following nMber explained

G «aie the loan boatobt dio Paplerawoobino aue a framework 10 _t to doaoeai upper lade Bruetwalaen 11 and arranged aind. Near the lower bathing deo Rabatenworkea 10 aind two Qautaabwalsen 13 and 1% before

109882/0102

⁶ AD ORIG - k

An endless Jiebbend 17 IKuJTt over dl · Brustwalao 11, Gautechwal se 13 «Gleitwaise 15 and Hegulierwalae 16 um. An eitdloaea Si «band 18 runs over the corresponding tndtrtn walls, • so that" between the breast whales 11, 12 and then the couch roll "13t 1 *" a leafy dune zone 19 is formed. Paper material is introduced at the upper end of the sheet formation zone 19, and the water is expelled from the paper material along the path of the breasts H, 12 and Gautschwalsen 13, Ik . Between the breasts 11 and 12 and Gautaohwalaen 13 and Ik • ind Ab · t reif er 20, "with the help of which the por" 4 <mr Blattbildttngaon can be changed "because theeae * a" part of the Hahmetiwerkea 10 Yerateilbar aind. The scrapers 20 aind «o a; sorted, ^H S 'fl of berisontale Abatand sviaohen the einaeinen deflectors in Bevegunnariehtung the Fonsdrätite progreaeiv smaller "DAO konvergieret the form of wires and lnfolgedeaaen those fibers d1" in the Bl * ttbildung · »one after derivation de" ttaaaera in the toff by Incorporate belts in hindu, hlneindrtteken into the paper web.

The drawing man learned that the lower strippers 20 in horizontal reddening are much closer to one another than the outer surfaces of the two Gautsebvals 13 and 13 , ao that the sieve belts 17 and 18 diverge in their movement from the lower strippers and the Gautehwalsen Separate the web from the sieve belt 16 and on the "belt iy au hold" is like the Zelahnunc selgt, within the side elf of the Slebbandea 17 "and just above the couch roll 13" in a feature-standing suction box 21 at the "Hahneηwerk 10, so that the web is weighed against the surface of the sieve belt 17.

109882/0102 ^ original

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In addition, the Cautecliwalse 13 is designed with an inner suction box 22, so that the newly formed web A is formed when the sieve belt 17 moves around the orphan 13 in a similar manner ebb system with the Si and 17 is held · in addition to the suction box 22 iet a suction box 23 is provided _t the Ainet having "htfheren suppressing, so daft susätsliche liquid from de" paper sheet is herauagesogen, with the Folt; e that the area of contact "wipe the Web S and the cover belt 17 is moistened in order to facilitate the separation of the web by means of the transmission- wise Zk au.

The transfer takes place through the internal suction box of the transfer valve 2k, which removes the paper web S from the wire belt and "brings it into contact with the transfer device" which then sends the information directly to the first press (which is not shown ) transported. Eye-catchingly, the run of the flute 26 emanating from the whale 2k is guided exactly tangential to the gap of the valle 13 and 2%, in order to facilitate the transfer of the track from the bend 17 to the flis 26 as a matter of courtesy.

The mode of operation of the device according to the invention is as follows. After a paper web S has been formed along the sheet formation area along the Bruetwalaen 1I ₁ 12 and the wipers 20 located next to the Gautech orphans 13 " ¹ ", the paper * The Abstrelform 20 located in the Oautechwalsen 13, Ik diverge in the direction a »f, the Gautsehwaiaen, and because there the suction box 21 the paper web S on the

109882/0102

äiebband 17feethftlt, from which Si ebbend 18 gradually golfed, When the paper belt is ready, the paper belt is running from the sieve belt 18 an di · Üautaehwala «13 at end will be transmitted to dta 26 transferred. During the partial rotation of the paper web 8 around the couch roll 13, the paper web S becomes dl » Uautaehwalae 13 over the inner suction box 22, while, as described, the suction box 23 is all vaaaer anyway step off the web IMOt to separate the paper web S of the sieve belt 17 su facilitate. Through a suction effect, Applied to the paper web S through the PiIa 26, the paper web is deposited on the transfer file and the nlLchaten station dor paper * · el * ine derived.

By the device according to & 0 of the invention is a verb ·· - aerung the surface of the paper web produced, the mn oinem the Siebbander is abgelttat, before the paper web is placed on a übertragungafils · In the prior art device calibration separated the newly formed paper web on a rotating Slabband In the valsenapalt aweier Gautaobwalaen, which is also formed as Saugwalaan, with the result that during the separation on the lifted surface a So "auageub" v * d. Due to this, paper parts are mitgeriaeen and the structure of the paper web is loosened, which is a disadvantage for the processing of the newly formed paper web. The disadvantage of the device according to the invention is avoided by the fact that during the separation a suction effect is exerted on the surface lifted off a sieve belt, so that no paper debris is formed on the surface . Also finds

10 9882/0 1 0 2 BAD ORONAL

The loosening of the paper web structure did not take place, eo that the «paper deposited on the t'bertragungefila bali η MMi has absolutely identical surfaces, whereby ei» improved · End product is assured

109882/0102 ^ΒΑύ O ₁

Claims (2)

(i) Papl ^ rmacehin * "it sv" lh "ri * antal g" lae "rt" n, "in" n gap picture "nd" u Bruatwalsen, iwr ·! stored below the BnMtVaIMn · η Gautaahval «« n and «in ·« Pear u »41 · each other * ug« t «n Br« «t-« md Gamt «somewhat« n β, · β «Ιι1« »§ · Η · & «nd d« r «b the gap swiaeheti dan Bruetvalsen naeh» nt · η lsi B «ria« ntalabatand «« each other under Blldutg a «r sheet1> ildwii« «aon · throughl1Uir« nd «a · ηά1ο · · Η Si «bbttnd« rn »f« rn «r« it «ine« • »• around the Bruatvalaaii ang * ardii * t * n staff casserole button« n, d * r then Papi «ret« ff naeti below sviaahen di «Siefefc & ndar« in «ftthrt, aavl ·» it Abatreifern, di · an c «« anm% * rll «c« & d «n strings d« r Blattblldungaaane «t alnd and an dar Ιηη · π ~ •• ite a * m suf «h9rig« i> Siebband ·· rest and al ah across the leaf formation aratraekan * daduzeh g * kenna «lehn« t, so that below d ·· untar ^ n / batr «if« rpaar «a ( 10) «in · transportungaTarriehtung Varcaaahan lat dl · den B« gan an aln · »the Siabbinder (17) is attached and anaafaliaftantf is detached from dl · ··» Porwdraht (I7). 2. Yarrlahtung according to Anapruah 1, dadurah g «k« nna · rejects, since · Bviaelien d · «ai« b nMehat der Gautaehval * · (13) located Deflector (lO) and dar Gautaeh «ala · (I3) a suction box (ll) iat. 3 · Varrlahtung naah Aaa »rest« h 2, dadurah gakenna ^ iahtMt »da · in dar Gautaahvalae (13) «in the Baa * n (g) on the G * ute * k · wala · (13) faatbaltender aaugkaatan (tt) and a waa «« rab- ^v 1098 82/01 0 2 ^{BAD0R |} G'NAL leading suction box (23) provided let J ». Verriehtung naeh neprueh 3 "characterized by the fact that a transmission (Mk) which is effective in the Gauteebwalse (13) has already been approved. BATH ORIGINAL
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