SE203079C1

SE203079C1 -

Info

Publication number: SE203079C1
Authority: SE
Publication date: 1965-01-01

Description

KLASS INTERNATIONELLSVENSK B29 j39 a7:5/04 PATENT- OCH REGISTRERINGSVERKET Ans. 8461/1959 inkom den 11/9 1959 utkigd den 8/6 196 SVENSKA TA.NDSTICKS AB, JONKOPING Satt och anordning for skiktning av spin vid frarastalining av spinplattor Tillagg till patentet 176 382 1.7ppfinnare: L E Waenerlund I huvudpatentet 176 382 beskrives ett satt for framstallning av spanplattor, varvid gray-re och finare span forst impregneras med ett hardbart lim och darefter torkas, varefter spa.- nen tillforas ett langs en transportbana rOr- ligt underlag fran en i underlagets rorelseriktningen sett bakre och en franare fordelningsanordning pa sadant satt, att vane del av underlaget pafores fOrst ett undre skikt av finare span fran den bakre fordelningsanordningen, darefter ett mellanskikt av grovre span fran hada och slutligen ett Ovre skikt av finare span Iran den framre fordelningsanordningen, varefter den sa lagrade spanmassan pressas i en varmpress till en spanplatta. CLASS INTERNATIONAL SWEDISH B29 j39 a7: 5/04 PATENT AND REGISTRATION AGENCY Ans. 8461/1959 was received on 11/9 1959 issued on 8/6 196 SVENSKA TA.NDSTICKS AB, JONKOPING Set and device for stratification of spin during removal of spin plates Addition to patent 176 382 1.7 Inventor: LE Waenerlund In the main patent 176 382 a set is described for the production of chipboard, whereby coarser and finer chips are first impregnated with a hardenable adhesive and then dried, after which the chip is applied to a longitudinal substrate along a transport path from a rear seen in the direction of movement of the substrate and a finer distribution device in this way. , to accustom part of the substrate, first a lower layer of finer spans from the rear distribution device, then an intermediate layer of coarser spans from hada and finally an upper layer of finer spans Iran the front distribution device, after which the thus stored span mass is pressed in a hot press to a chipboard.

Uppfinningen hard& sig till ett dylikt salt for tillverkning av spanplattor och innebar en forbattring avensom en modifikation av foremalet for huvudpatentet och bestar vasentligen ddruti, att mellanskiktet avjamnas, innan det ovre skiktet av finare span phfores. The invention adheres to such a salt for the manufacture of chipboards and entailed an improvement as well as a modification of the form for the main patent and consists essentially in that the intermediate layer is leveled before the upper layer of finer chips is formed.

Det her visat sig, sit vid fordelningen av spanen p0 underlaget den utbredda spanmassan kan erhalla en i relativt hog grad varierande tjocklek och motsvarande ojamn ovre yta, och vid den efterfoljande varmpressningen kommer den darvid erhallna spanplattan att erhalla en varierande tathet, vilket innebar saval en. Rad materialatgang som andra olagenheter. Detta skulle 1 viss man kunna avhjalpas genom en avplaning av det byre skiktet av finare span fore pressningen, men harigenom skulle detta skikt komma att variera I tjocklek eller flackvis helt avplanas, sa att grOvre span p0 vissa stallen na upp till ytskiktet. Genom att man enligt uppfinningen forst avplanar mellanskiktet och darefter anbringar det byre skiktet, kommer detta efter pressningen att erhalla en praktiskt taget konstant tjocklek, varigenom icke blott ett mera likformigt och tilltalande utseende av ytan erhalles utan Oven en hardare yta samt storre bojningshallfasthet hos plattan. It has been found here that in the distribution of the chip on the substrate the spread chip mass can obtain a relatively highly varying thickness and correspondingly uneven upper surface, and in the subsequent hot pressing the chip plate thus obtained will obtain a varying density, which meant . Row of material access as other illegal items. This could be remedied to some extent by flattening the upper layer of finer chips before pressing, but as a result this layer would vary in thickness or be completely flattened, so that coarser chips in some stables reach up to the surface layer. By first flattening the intermediate layer according to the invention and then applying the thicker layer, this will after the pressing obtain a practically constant thickness, whereby not only a more uniform and attractive appearance of the surface is obtained but also a harder surface and greater bending strength of the plate.

Uppfinningen tydliggores narmare i det fajande i anslutning till bifogade ritningar, dar fig. 1 an en schematisk perspektivvy av en utforingsform av en anordning for skiktning av spanen forsedd med en avjamningsanordning enligt uppfinningen, fig. 2 Or en sidovy i stor= re skala av en del av en fordelningsanordning med tillhorande sail och avjamningsanordning, och fig. 3 Or en perspektivisk vy av en del av en till anordningen. horande spridningsanordning sedd snett u.nderifran. The invention is further elucidated in the following in connection with the accompanying drawings, in which Fig. 1 is a schematic perspective view of an embodiment of a device for stratifying the chip provided with a leveling device according to the invention, Fig. 2 is a side view on a larger scale of a part of a distribution device with associated sail and leveling device, and Fig. 3 is a perspective view of a part of one of the devices. hoarse spreading device seen obliquely from below.

I den visade anordningen skall spanmassan uppsamlas skiktad pa en red pressplatar 11,, som Oro forskjutbara i en transportbana, be- stOende av tva sasom gejdrar tjanande balkar 4 och tva. pa dessa anbragta sidostyrningar 12. Under pressplatarna befinner sig en drir yen, andlos kedj a 10 fOrsedd med uppsta.ende hakar 13 for pressplatarnas forskjutning, och Over narliggande andar av tva pressplatar kan vara anordnad en icke visad kapa. De fran maskin.en kommande platarna Oro avsedda att inskjutas i en varmpress for formning av den skiktade spanmassan till spanplattor, varr vid det spanen tillforda bindemedlet hardas; sa att en styv, slat och jamntjock platta erhalles. In the device shown, the chip mass is to be collected layered on a red press plate 11, which is displaceable in a transport path, consisting of two such as guides serving beams 4 and two. on these arranged side guides 12. Under the press plates there is a three yen, andlos chain of 10 provided with upright hooks 13 for the displacement of the press plates, and Overlying spirits of two press plates can be arranged a cut (not shown). The plates coming from the machine are intended to be inserted into a hot press for forming the layered chip mass into chip plates, where the adhesive applied to the chip is hardened; said that a stiff, smooth and evenly thick plate is obtained.

De med bindernedel impregnerade spanen nedfalla frau en icke visad utmatningsanordfling genom en vertikal, av ett ramverk 7 uppburen kanal 8, Iran vilken spanen me-deist en lamplig anordning fordelas ph tva grenror 6 och frail dessa nedfalla ph tva fopdelningsanordningar med skakbord 2, 3 i en jamn och tunn strom av en bredd motsvarande rorens 6 inre vidd. Skakborden besta av en platta med tre uppsta.ende sidokanter, och vid 2 den fjarde sidokanten 9 aro fdstade ett flertal i transportbanans 4 langdriktning forlopanda och sasom ett salt tjanande stavar 14. The binder impregnated with binder precipitates from a discharge device (not shown) through a vertical channel 8, supported by a framework 7, Iran, which chip is distributed by means of a suitable device into two branch tubes 6 and from which it falls into two sheath dividers 2, 3 in a smooth and thin stream of a width corresponding to the inner width of the rudder 6. The shaking tables consist of a plate with three projecting side edges, and at the fourth side edge 9 a plurality of longitudinally extending vanes in the longitudinal direction of the conveyor track 4 are formed, as well as a salt-serving rods 14.

Vartdera skakbordet 2, 3 uppbares av tva par fjadrande ben 39 och tva. bockar 1 samt paverkas av en under detsamma anbragt vibrator 5 for spanens vibrering och frammatfling Over skakbordet och sallet. Each shaker table 2, 3 is supported by two pairs of resilient legs 39 and two. bends 1 and is affected by a vibrator 5 arranged below it for the vibration and feed flap of the scoop over the shaking table and the saddle.

Medan spanen befinna sig p. skakborden 2 och 3, komma genom vibreringen de finare spanen att sjunka till botten, medan grovre span ansamlas i ett ovre skikt pa skakborden. Sasom framgar av fig. 2 kommer, dft spanlagren pa skakborden vibreras fram mot sallen, finare span att falla ned mellan sallens 14 stavar och grovre span att matas fram Over stavarnas andar, varvid pa en ldngs transportbanan 4 at vanster och i pilens 15 riktning transporterad pressplat kommer att uppbyggas ett spanlager med finare span fran det forsta, till hoger pa ritningen visade skakbordet 2 i bottenskiktet, ddrOver ett skikt med Over sallstavarnas andar nedfallande grOvre span fran forst det fiirsta skakbordet 2 och sedan fran det andra skakbordet 3 samt slutligen ett skikt med finare span fran det sistnamnda skakbordet. While the chips are on the shaking tables 2 and 3, the finer chips come to sink to the bottom through the vibration, while coarser chips accumulate in an upper layer on the shaking tables. As can be seen from Fig. 2, as the chip bearings on the shaking tables vibrate towards the saddle, finer chips fall down between the rods 14 rods and coarser chips will be fed over the spirits of the rods, transporting on a longitudinal conveyor belt 4 to the left and in the direction of arrow 15 press plate will be built a chip layer with finer chips from the first, to the right of the drawing showed the shake table 2 in the bottom layer, ddrOver a layer with with finer span from the latter shaking table.

Det undre skiktet av finare span begransas harvid neat av pressplaten, varfor dess nedre yta blir plan. Pa grund av oundvikliga oregelbundenheter i spantillforseln intraffar det latt, att det ovre finskiktets yta blir ojamn, vilket far till foljd motsvarande oregelbun.- denheter i den fardigpressade spanplattans tathet. Det är ej ldmpligt att for undvikande av denna nackdel avjamna det ovre finskiktets yta fore pressningen, enar finskiktet da erhaller en mot oregelbundenheterna svarande varierande tjocklek och skiktet med grovre span skulle hdrvid flackvis kunna ná upp till den avjamnade ytan. The lower layer of finer span is thereby limited by the press plate, so that its lower surface becomes flat. Due to unavoidable irregularities in the chip supply, it easily happens that the surface of the upper fine layer becomes uneven, which results in corresponding irregularities in the density of the pre-pressed chipboard. It is not feasible to even out the surface of the upper fine layer before pressing to avoid this disadvantage, the fine layer then obtains a varying thickness corresponding to the irregularities and the layer with coarser chips could thereby reach up to the smoothed surface.

For att det owe finskiktet skall fa en vasentligen plan yta och samma tjocklek Overallt är enligt uppfinningen en avjamningsanordning anordnad, som i det visade utforandet bestar av en av en elmotor 40 driven och till denna direktkopplad roterande cylindrisk borste eller fras 41, som stra.cker sig tvars Over transportbanan under det andra skakbordets 3 utmatningsande mellan de platser, dar de grovre spanen fran namnda skakbord i en spanstrom 19 faller ned Over stavarnas 14 andar, och den plats, ddr finare span i en spanstrom 42 faller ned. Borsten är lagrad i luckor. 43, villa tacka oppningar 44 i tva sidoskarmar 22 och aro forskjutbara i vertikala gejdrar anordnade i sidoskarmarna vid Oppningarnas 44 vertikala kanter. Borsten är vertikalt stallbar medelst schematiskt visade skruvanordnirigar 46 verkande pa luckorna 43. En i luckoma fastad kapa 47 omger borsten upptill och pa sidorna. De av borsten uppfrasta spanen bortsugas ur kapan genom ett ror 50 och kunna aterforas till ett spanmagasin medelst en Over transportbanan mellan roren 6 anbragt flakt 48, som ãr placerad ovanpa en horisontell skarm 23. Flakten är ansluten till kapan medelst bojliga slangar eller teleskopiskt forlangbara ror 49, sa att en vertikal justering av borsten och kapan blir mojlig. In order for the non-fine layer to have a substantially flat surface and the same thickness, a leveling device is arranged everywhere. across the conveyor path below the discharge end of the second shaking table 3 between the places where the coarser chips from said shaking table in a chip stream 19 fall down over the spirits of the rods 14, and the place where the finer chip in a chip stream 42 falls down. The brush is stored in doors. 43, will open openings 44 in two side screens 22 and be displaceable in vertical guides arranged in the side screens at the vertical edges of the openings 44. The brush is vertically adjustable by means of schematically shown screw devices 46 acting on the doors 43. A cap 47 fixed in the doors surrounds the brush at the top and on the sides. The chips milled by the brush are sucked out of the casing through a tube 50 and can be returned to a chip magazine by means of a surface 48 arranged over the transport path between the tubes 6, which is placed on top of a horizontal screen 23. The plane is connected to the hood by flexible hoses 49, said that a vertical adjustment of the brush and cutter will be possible.

De genom det andra skakbordets 3 sail 14 nedfallande finare spanen fOras medelst en under skakbordet anordnad transportanordning forbi borsten 41, sa att de nedfalla pa pressplaten pa ett stalle belaget i pressplatens rorelseriktning sett efter borsten. Denna transportanordning utgores i det visade utforingsexemplet av en i skakbordet under sal-let 14 fastad lutande skiva 51, som stracker sig till ett stalle beldget efter borsten 41. De Iran sallet nedfallande finare spanen foras av skivans 51 vibrationer till skivans nedre vanstra kant, fran vilken de nedfalla mot en fast anordnad styrskarm 52, ldngs vilken de falla ned pa det av borsten avjamnade skiktet med grOvre span. For fOrdelning av de nedfallande grovre spanen aro anordnade stavar 53, utefter vilka ett antal horisontella skivor 54 med stegvis avtagande bredd aro fOrdelade, vilka utsprida de nedfallande spanen i transportbanans langdriktning. The finer chips falling through the second shaking table 3 sail 14 are conveyed by means of a transport device arranged under the shaking table past the brush 41, so that they fall on the press plate in a place covered in the direction of movement of the press plate seen after the brush. This transport device consists in the exemplary embodiment shown of a sloping disc 51 fixed in the shaking table under the saddle 14, which extends to a stable bellows after the brush 41. which they fall down against a fixedly arranged guide arm 52, which they fall down on the layer flushed by the brush with coarse spans. For distributing the falling coarse chips, rods 53 are arranged, along which a number of horizontal discs 54 with gradually decreasing width are distributed, which spread the falling chips in the longitudinal direction of the transport path.

Den harovan beskrivna och pa ritningarna visade anordningen ken modifieras mom ramen for uppfinningen. SaWilda kan borsten ersattas med ett vinghjul, vars ovre del är tillsluten av kapan och tillsammans med denna bildar axiella kanaler, fran vilka spanen bortforas medelst en genomgaende luftstrom, eller ocksa ken man anyanda en enkel avstrykarskiva. The device described above and shown in the drawings may be modified in accordance with the invention. SaWilda, the brush can be replaced by an impeller, the upper part of which is closed by the hood and together with it forms axial channels, from which the scoop is removed by means of a continuous air flow, or also a simple wiper disc.

Claims

Patent claims:

1. Set for the production of chipboard according to patent 176 382, characterized in that the intermediate layer is leveled on the edge itself, before the upper layer of finer chips is applied, and that the finer chips from the front distribution device are transported a distance in the substrate ( 11) direction of motion, before they paforas the smoothed intermediate layer.

Device according to patent claim 3 in patent 176 382 for carrying out the method specified in patent claim 1 above, characterized in that a. In and of itself a known device (40, 41, 43-50) for leveling the intermediate layer is placed above the substrate 3 (11) and subsection. the area for the stream of finer chips from the front distribution device, and that a transport device (51) is arranged between the front distribution device and the leveling device for intercepting the finely mentioned distribution device, the finer chips are discharged and their transport and deburring on the leveled intermediate layer in front of the leveling device.

Device according to claim 2, characterized in that the transport device comprises a sloping plate (51) which is fixedly connected to the salt (14) of a distribution device.

Device according to patent claim 3, characterized by a guide arm (52) fixedly arranged below the lower part of the plate (51) and in front of the leveling device (40, 41, 43-50) for guiding the chip falling towards the leveled intermediate layer towards the leveled intermediate layer. Request publications: Patents Iran USA 2,688,393, 2,822,024.