SE123734C1

SE123734C1 -

Info

Publication number: SE123734C1
Authority: SE
Publication date: 1948-01-01

Description

KLASS 50 d:6/ BESKRIVNING OFFENTLIGGJORD AV KUNGL. PATENT- OCH REGISTP,ERINGSVERKET BEVILJAT DEN 4 NOVEMBER 1948 PATENTTID FRAN DEN 10 DEC. 1945 PUBLICERAT DEN 4 JANUAR] 194? Ans. den "/„ 1945, 121' 9505/1945. Hartill en ritning. CLASS 50 d: 6 / DESCRIPTION PUBLISHED BY KUNGL. PATENT AND REGISTRATION AUTHORITY GRANTED ON NOVEMBER 4, 1948 PATENT PERIOD FROM 10 DEC. 1945 PUBLISHED ON 4 JANUARY] 194? Ans. den "/„ 1945, 121 '9505/1945. Hitherto a drawing.

MGRGA_RDSHAMMARS MEKANISKA VERK.STADS AKTIEBOLAG, MORGARDSHAIVIMAIL An.ordning for inspanning av siktduk I vibrationssiktar och liknande. MGRGA_RDSHAMMARS MEKANISKA VERK.STADS AKTIEBOLAG, MORGARDSHAIVIMAIL Device for clamping screen cloth in vibrating screens and the like.

U-npfinnare: J. S. Braman. Inventor: J. S. Braman.

For sortering av material med varierande styckestorlek i olika storleksklasser her sik- tar med snabb r8relse alltmer visat sin over- lagsenhet gentemot andra typer av sorteringsapparater. Darvid ha speciella problem Lipp- statt, harrOrande f ran svarigheten att fa sikt- organet att IOU a med siktladans av drivanordningen bestamda rOrelse. Denim svarighet dr sarskilt framtradande yid siktar avsedda for siktning -av fint gods, dar siktorganet till foljd av sin ringa styvhet har latt att komma svangningar. Forutom olagenheten med sadaHa svangningar, att de oini5jligg8ra en Palm och lugn frammatning av godset, medfora de, att siktduken pa grund av utmattning och onormalt slitage brister pa mycket kort tid. For att minska risken av att svangningar skola upptrada, spannes .ofta sjalva siktorganet i smarre f alt, isynnerhet dd det For sig om siktduk med klen tradtjocklek. Enar dukkostnaden- i de fiesta fall betyder mest ur omkostnadssynpunkt, har begreppet am effektiv in-spanning kommit att bliva synonymt med uttrycket ekonomisk siktning. For sorting materials with varying piece sizes in different size classes, with rapid movement, it is increasingly aimed at its superior unit over other types of sorting machines. In doing so, Lippstatt has special problems, arraOrande from the responsibility to get the sighting body to IOU a with sightledans determined by the drive device. Denim responsiveness where particularly prominent yid sights are intended for sifting -of fine goods, where the sifting member due to its slight stiffness has allowed oscillations to occur. In addition to the inconvenience of such oscillations, that they impede a palm and calm feeding of the goods, they mean that the screen, due to fatigue and abnormal wear, is defective in a very short time. In order to reduce the risk of fluctuations occurring, the sieve organ itself is often stretched in a smoother case, especially when it comes to a screen cloth with a small thread thickness. If the cost of the canvas - in most cases means most from a cost point of view, the concept of effective effort has become synonymous with the term economic aiming.

Kravet pa sjalva anordningen for siktdukens inspanning i siktladan her harigenom blivit framtradande. Ett siktduksbyte skall kunna foretagas med ett fatal handgrepp, enkelt och snabbt, utan langa ,avbrott i driften, spanningen maste vara likartad Over hela du-ken och kunna justeras under gang. The requirement for the device itself for the screen cloth's effort in the screen here has thereby become prominent. It must be possible to change the screen cloth with a fatal handle, easily and quickly, without long, interruptions in operation, the tension must be similar throughout the cloth and can be adjusted during walking.

Alla hittills gjorda fOrsok att lose ovennamnda svarigheter ha resulterat i omstandliga konstruktioner, vilka dels omotiverat Oka vikten av den i siktningsrorelsen deltagande massan, .dels fOrsvara montering och efterjustering av duk. All hitherto made attempts to loosen the above-mentioned responsibilities have resulted in cumbersome constructions, which partly unjustified Increase the importance of the mass participating in the screening movement, and partly defend the assembly and readjustment of canvas.

Enligt foreliggande uppfinning elimineras alla har patalade svdrigheter. Siktduken kan armed spannas effektivt och likformigt med anvandande av .endast ett fatal spannelement. Dukspanningen kan kontrolleras och justeras - under drift, da spannskruvarna aro belagna utanfor siktladan. Dessa skruvar kunna av- lagsnas efter endast nagra Tar-vs vridning pa muttern, sasom framgar av nedanstaende beskrivning. According to the present invention, all having patched difficulties are eliminated. The screen cloth can be armed effectively and uniformly using only a fatal tensioning element. The fabric tension can be checked and adjusted - during operation, as the clamping screws are coated outside the screen. These screws can be removed after only a few Tar-vs turns on the nut, as shown in the description below.

Bifogade ritning visar utforingsexempel av uppfinningen. Fig. 1 visar strackningsanordningen sedd fran sidan, delvis i skarning efter linjen A—B i fig. 2, vilken senare figur visar anordningen sedd uppif ran. The accompanying drawing shows exemplary embodiments of the invention. Fig. 1 shows the stretching device seen from the side, partly in section along the line A-B in Fig. 2, which later figure shows the device seen from above.

Siktdukens 1 karriparti 2 är vikt omkring yttre kanten av spannjarnet 3, vid vilket dukkanten är fast med en utmed densamma sig strackande skena 4, som iugriper i under spannjarnet. 3 helagna sparrhak 5. Spannjarnet 3 genomgar och styres av i siktladans sidvaggar befintliga slitsar 12. Mellan hire kanten av spannjiirnet och en stodplatta 6, som utgor del av siktladan, Or anbringad en eller flera spannskruvar 7, lampligen vanliga, helgangade .standardskruvar med skalle 8 och mutter 9. Skruvskallen 8 har ett grunt spar 10, i vilket ingar inre kanten av spannjarnet 3, on med den skru-vskallen 8 motsatta an-den Or skruven 7 fritt inford genom en i stodplattan 6 befintlig oppning 11 av sadan form ,och storlek, att skruven 7, for att yid ombyte av siktduk kunna lostagas, kan foras till det i fig. 1 prickstreckade laget. The curry portion 2 of the screen cloth 1 is folded around the outer edge of the tensioning iron 3, to which the cloth edge is fixed with a rail 4 extending along it, which engages under the tensioning iron. 3 integral ratchet hooks 5. The tensioning iron 3 passes through and is guided by slots 12 present in the siding of the siding laden. 8 and nut 9. The screw head 8 has a shallow groove 10, in which the inner edge of the clamping iron 3, with the opposite screw head 8, or the screw 7 is freely inserted through an opening 11 of such a shape present in the support plate 6, and size, that the screw 7, so that the change of screen cloth can be loosened, can be fed to the dotted line in Fig. 1.

I skruvens med heldragna linjer i fig. 1 visade lage Or muttern 9 atdragen mot stodplattan 6 i och fOr dukens strackning, vilken sistnamnda alltsa med latthet kan regleras genom vridning ,av den eller de utanfor siktladan latt atkomliga muttrarna 9. Sparet 10 i skruvskallen 8 hindrar darvid skruven att deltaga i mutterns vridning. In the solid lines of the screw in Fig. 1, the bearing Or nut 9 is shown tightened against the support plate 6 in and for the stretching of the cloth, the latter of which can thus be easily adjusted by rotation of the nut (s) easily accessible outside the sight barrel. thereby preventing the screw from participating in the rotation of the nut.

Skall siktduken lostagas for att utbytas mot .en annan, forskruvas muttern 9 sá mycket at vanster (fig. 1) som drygt motsvarar djupet ,av skrtivskallens spar 10, varigenom skruven losgores fran spannjarnet 3 och blir fri att 2— — pa ovan beskrivet sad bringas i snedlage och darpa borttagas. Genom att darpa fora dukens kantskena 4 ur ingrepp med sparrhaken 5, losgares duken Iran spannjarnet 3 och en annan duk kan infastas. If the screen cloth is to be loosened to be exchanged for another, the nut 9 is screwed so far to the left (fig. 1) that roughly corresponds to the depth, of the notch shell groove 10, whereby the screw is detached from the tensioning iron 3 and becomes free brought to a slant and darpa removed. By darping the edge rail 4 of the cloth out of engagement with the ratchet 5, the cloth Iran loosen the tensioning iron 3 and another cloth can be fastened.

Genom att for spannanordningen kan anvandas vanliga helgangade, mutterforsedda standardskruvar blir anordningen ytterligt enkel att handhava och dartill hallbar, vilket är ay sarskild betydelse med hansyn till att spannskruvarna ofta Oro utsatta for vardslos behandling, for vilken de ifragayarande standardskruvarna bliya sarskilt motshindskraftiga. Because standard full-screw, nut-mounted standard screws can be used for the clamping device, the device becomes extremely easy to handle and durable, which is of particular importance in view of the fact that the clamping screws are often subjected to careless treatment, for which the standard screws become particularly resistant.

Pa grand ay att siktduken ej Or helt stet, titan garna buktar sig och fjadrar nagot i spannriktningen, behover den oftast strackas ett ganska langt stycke, innan den erhaller en for sin ratta funktion erforderlig spanning. En del av denna striickning kan man emellertid med fordel verkstalla for hand utan anlitande av spannskruvarna och anyanda dessa ,endast for den sista och hardaste delen ay strackningen. Harigenom emits det snabbast majliga dukbytet. Detta farutsatter emellertid, att en losstagen spannskruy kan applicemas i yerksamt spannlage med kortast mojliga forskruyningsstracka. Due to the fact that the screen is not completely solid, the titanium bends and springs slightly in the span direction, it usually needs to be stretched a fairly long distance before it receives the tension required for its steering function. Some of this knitting can, however, be advantageously carried out by hand without the use of the clamping screws and any other of these, only for the last and hardest part of the tightening. As a result, the fastest oral cloth change is emitted. However, this presupposes that a loosened clamping screw can be applied in an effective clamping layer with the shortest possible screwing distance.

Insattning av siktduk tillgar sa, att man forst bringar dukens 1 kantskena 4 till ingrepp med sparrhaken 5, Tarim). det losa spannjarnet 3 fores frim silt innersta lage och -eat ett gott stycke for hand, varpit spannskruyarna 7 insattas, och finjustering sker med dessa. Insertion of a screen cloth also means that the edge rail 4 of the cloth 1 is first brought into engagement with the ratchet hook 5, Tarim). the loose clamping iron 3 is lined with the innermost layer and eaten a good distance by hand, the clamping screws 7 are inserted, and fine adjustment is made with these.

Giyetvis Or det inlet som hindrar att man fOrser siktladan med ett lost spannjiirn 3 for varje ande av duken. Giyetvis Or the inlet that prevents the sight barn from being provided with a lost spannjiirn 3 for each spirit of the canvas.

Fintradig siktduk bar for undyikande ay ovanpa. siktytan 'Emir:Jude falsjarn. laggas over spannjarnet 3 sit, att dukens Oversida Or fri anda fram till spannjarnets yttersla kant. Yid insattning bojes sfidan duk Over spannjarnets kant och skenan 4 skittles in i de pa spannjarnets undersida befintliga span.- haken 5, vilka Oro sit behigna och utformade, att de hindra duld'alsen all glida ur dem do duken spannes. Fine-grained tarpaulin bar for undyikande ay on top. siktytan 'Emir: Jude falsjarn. laid over the iron 3 sit, that the Top of the cloth Or free spirit up to the outer edge of the iron. During insertion, the sfidan cloth is bent over the edge of the spanner and the rail 4 is shuttled into the spans 5 on the underside of the spanner, which are comfortable and designed so that they prevent the duld'alsen from sliding out of them as the cloth is stretched.

Grovre duk kan giyetvis ocksa med fardel strackas fOrmedelst samma spannanordning. Anden av duken, som i sadana fall oftast fOrses med en haktanordning, behover do, for alt kunna strackas, endast hakas Over spannjarnets yttre kant. Coarse cloths can also be stretched with a part by means of the same clamping device. The spirit of the cloth, which in such cases is usually provided with a chopping device, needs, in order to be able to stretch everything, to be hooked only over the outer edge of the spanner.

Givet Or att anordningen kan till sina detaljer forandras utan ad uppfinningens princip darigenom frangits. Given that the device can be changed in its details without thereby violating the principle of the invention.

Claims

Patent application:

1. A device for clamping ay fine-line screen cloth in vibrating screens and the like, characterized in that the sides of the screen are provided with guide slots or the like in the direction of stretching, in which Or steerably controls an emitter of the screen, or with each of its edges connected in the direction of stretching. iron or dyEld, between the inner edge and the fixed part of the screen barn Or arranged such a clamping device, that the same by clamping between the iron and said fixed part hailer the screen cloth bucket.

Device according to claim 1, characterized in that the tensioning iron (3) is connected to the screen cloth (1) by means of a rail (4) extending along the edge thereof, so as to graze the upper side of the stretched cloth (1). similar spirit tram to the outer edge of the iron (3), where the goods leave the cloth (1), varyid the rail (4) suitably ingar I arranged under the iron (3) ratchet hook (5).

Device according to patent claim 1, mapped according to the fact that the Indian spinning iron (3) and the fixed post in the herring barn existing clamping device consist of one or more spinning screws (7) arranged between said parts.

4. Device according to claim 3, characterized in that on each clamping screw (7) a nut (9) can be screwed on, which on such a salt abuts and coexists with the fixed path in the screen, that the tightening of the screen cloth is regulated by screwing on the nut.

Device according to claims 3 and 4, characterized in that the clamping screw (7) is detachable from the clamping iron (3) and with another spirit freely inserted through an opening (11) in a standing plane forming a part of the Siciladan ( 6), vat-yid said opening (11) Or aV L'idan starlek ark form, that it allows the screw (7.) oblique installation in and pulling out of the opening (11) after the screw (7) has been loosened frail the clamping iron

Device according to patent claims 3-5, claimed in claim, that the clamping screw (7) is cast on a standard, fully threaded, nut-fitted standard screw, -cars head (8) has a groove (10) in which the edge of the clamping iron (3) engages. yarigenom the screw (7) am prevented from turning, dO the nut (9) is turned for adjustment ay the tension in the screen cloth. Stocklolm 1048. hung). Doktr. P. A. Norsteat & SUner 430089