SE179403C1

SE179403C1 -

Info

Publication number: SE179403C1
Authority: SE
Publication date: 1962-01-01

Description

Uppfinnare: P E N Forss och K V Norling Foreliggande uppf inning avser en barkningsmaskin, vid vilken de for barkning avsedda stockarna ledas centralt genom ett barkningsmaskineri med mot och Iran stocken svangbart lagrade armar, vilka vardera uppbar ett roterande faste for barkningsorgan, som vid fastets rotation slagartat paverka barken. Uppfinningen kannetecknas i huvudsak &ray, att slagorganen besta av stela kroppar, som aro rorligt, lampligen svangbart lagrade i fastet pa sadant satt, att de under fastets rotation genom centrifugalkraften las utskjutna eller utsvangda till det mot barken angripande laget. Inventors: PEN Forss and KV Norling The present invention relates to a debarking machine, in which the logs intended for debarking are guided centrally through a debarking machine with arms and pivotally mounted arms to the Iran log, each of which carried a rotating fastener for debarking means. barken. The invention is essentially characterized in that the striking members consist of rigid bodies which are movably, suitably pivotally mounted in the fastener in such a way that during the rotation of the fastener they are pushed out or swung out by the centrifugal force to the layer attacking the bark.

Uppfinningen beskrives i det foljande narmare under hanvisning till ett pa bifogade ritning visat utforingsexempel. Fig. 1 visar barkningsmaskinen i en vertikal langdsektion, rnedan fig. 2 visar en tvarsektion genom maskinen. The invention is described in more detail below with reference to an exemplary embodiment shown in the accompanying drawing. Fig. 1 shows the debarking machine in a vertical longitudinal section, below Fig. 2 shows a cross section through the machine.

Med 1 betecknas ett stativ, genom vars c,entrala Oppningsdel 2 den for barkning avsedda stocken inledes i pilens riktning. Vid stativets centralappning dro fasta atminstone tre bladfjaderknippen 3, vilka ha kraftig fjadring Mat mot varandra och aro vid de fHa findarna forsedda med vridbart lagrade, skarpkantade styrrullar 4. Dessa rullar tjana dels till att minska friktionen vid stockens inforande och dels till att hindra stocken att vrida sig under framskjutningen, genom att de skarpkantade rullarna ingripa i barken. Fjadrarna tjana liven till att centrera stocken. 1 denotes a stand, through whose c, central opening part 2 the log intended for barking begins in the direction of the arrow. At the central opening of the stand fixed at least three leaf spring bundles 3, which have strong suspension Mat against each other and are at the few finders provided with rotatably mounted, sharp-edged guide rollers 4. These rollers serve partly to reduce the friction when the log is inserted and turn during the projection, by the sharp-edged rollers engaging the bark. The springs serve the life to center the log.

Pa stativet 1 fir anordnad en fast, utatriktad kuggkrans 5, pa vilken lopa kugghjul 6, t. ex. tre stycken. Pa yttre sidan av kugghjulen 6 ãr anordnad en kuggkrans 7, vilken fir fast pa en roterbart driven del, t. ex. en sparremsskiva 8, som drives frail ldmplig motor. On the frame 1 a fixed, unidirectional gear ring 5 is arranged, on which loops gears 6, e.g. three. On the outer side of the gears 6 a gear ring 7 is arranged, which is fixed to a rotatably driven part, e.g. a spare pulley 8, which is driven by a slow-moving motor.

Kugghjulen 6 aro fasta pa axlar 9, som aro lagrade, t. ex. pa kullager 10, i kugghjulshal- lare 11 och 12. Med kugghjulshallaren. 11 är stelt forbunden en trumma 13, som vid yttre dclen lampligen uppbar en krans av sugflaktvingar 14. Den salunda bildade flakten om- slutes upptill och baktill av ett fast hus 15 med t. ex. tangentiellt avlopp fdr luften. The gears 6 are fixed on axles 9, which are mounted, e.g. on ball bearings 10, in gear holders 11 and 12. With gear holder. 11, a drum 13 is rigidly connected, which at the outer part suitably carried a ring of suction flat blades 14. The thus formed flat is enclosed at the top and rear by a fixed housing 15 with e.g. tangential drain fdr air.

Kugghjulens 6 axlar 9 aro vardera medelst en universalled 16 anslutna till en spindel 17, vid vars yttre ande dr anordnat ett barkningshuvud. Detta bestar vid det visade utforingsexemplet av ett pa spindeln fastskruvat faste 18 med pa detta svangbart lagrade som slag-organ verkande barkningsorgan 19. Barkningsorganen ha langstrackt form och deras ytter kantkontur 20 ar bagformigt bojd utat. I tvarsektion ha barkningsorganen en yttre konvex kontur vid den sida, 21, i fig. 2, som under maskinens arbete bearbetar harken. Denna konvexa yta begransas vid den yttre delen av en utskjutande kant 22. The axes 9 of the gears 6 are each by means of a universal joint 16 connected to a spindle 17, at the outer spirit of which a barking head is arranged. This consists in the exemplary embodiment shown of a fastener 18 screwed onto the spindle with barking means 19 mounted on it pivotably. In cross section, the barking means have an outer convex contour at the side, 21, in Fig. 2, which during the work of the machine processes the rake. This convex surface is defined by the outer part of a projecting edge 22.

Pa spindeln 7 ar anordnad en med glidlager for spindeln forsedd hylsa 23. Pa hylsan aro fasta tappar 24 och med dessa aro ledbart forbundna tvenne ldnkar 25 och 26, av vilka den forstnamnda fir medelst en tapp 27 svangbart lagrad i trumman 13, medan den andra ãr medelst en tapp 28 ansluten till en arm 29, vilken medelst en tapp 30 ãr svangbart lagrad i kugghjulshallaren 11. Vid yttre anden av armen 29 fir roterbart lagrad en ldmpligen med nabbar forsedd trissa 35. Trissan 35 är roterbar i ett plan, som bildar sued vinkel mot stockens frammatningsriktning. Arranged on the spindle 7 is a sleeve 23 provided with sliding bearings for the spindle. is by means of a pin 28 connected to an arm 29, which by means of a pin 30 is pivotally mounted in the gear holder 11. At the outer end of the arm 29 for rotatably mounted a pulley 35 provided with hubs 35. The pulley 35 is rotatable in a plane which forms sued angle to the feed direction of the log.

Mellan hylsan 23 och barkningshuvudet 18 ãr anordnad en kraftig skruvfjader 31, vilken anligger mot barkningshuvudet under formedling av ett kullager 32. Arranged between the sleeve 23 and the barking head 18 is a strong helical spring 31, which abuts against the barking head during the formation of a ball bearing 32.

Under maskinens gang komma kugghjulen 6 att med stor hastighet rotera kring sina ax- lar och i krets kring den fasta kuggkransen 5. Samtidigt kretsa kugghjulshfillaren 11 och trumman 13 samt darmed spindeln 17 kring maskinens centrumaxel, varvid de som slagor utbildade barkningsorganen 19 aven rotera med stor hastighet kring spindelns axel och slangas utat av centrifugalkraften. Deras utsvangningsr5relse begransas genom en anslagsklack 33. During the operation of the machine, the gears 6 rotate at high speed around their axes and in a circle around the fixed gear ring 5. At the same time, the gear pulley 11 and the drum 13 and thus the spindle 17 rotate around the center axis of the machine, the barking members 19 also high speed around the axis of the spindle and is tubed outwards by the centrifugal force. Their swing-out movement is limited by a stop lug 33.

Nar en stock infores i maskinen, centreras den av styrrullarna 4. Den traffar darefter 2— — de kretsande trissorna 35, vilka dels pa grund av sin kretsande rorelse och dels pa grund av deras relativt stockens frammatningsriktning snedstallda egna rotationsplan skruva sig upp pa stocken och sedan rora sig relativt stocken i en skruvformig rorelse. De kunna darfor tjana soni frammatningsorgan for stocken. When a log is inserted into the machine, it is centered by the guide rollers 4. It then strikes 2— - the orbiting pulleys 35, which partly due to their orbital movement and partly due to their relative direction of the log's inclined plane of rotation screw up on the log and then move relative to the log in a helical motion. They can therefore serve as feed for the log.

Det med trissan 35 forbundna lanksystemet 25, 26, 29 är sa utbildat och anordnat, att spindeln 17 formedelst hylsan 23 Mires utal eller mat relativt maskinens centralaxel i overensstammelse med trissans rorelse i dessa riktningar, sa att trissan bestammer barkningshuvudets lfimpligt avpassade 'age relativt stockens yta, oberoende av diametern hos den fOr tillfallet bearbetade stocken. Lankarna 25, 26 bilda knaledsskanklar, riktade snett utat at var slit hall fran spindeln 17. Fjadern 31 stravar att sara lankarna, varigenom den samtidigt antrycker trissan 35 emot stocken. Samtidigt far fjadern och lanksystemet den funktionen, att fjadern motverkar att barkningshuvudet av centrifugalkraften svanges utat fran. stocken. The link system 25, 26, 29 connected to the pulley 35 is so shaped and arranged that the spindle 17, by means of the sleeve 23 Mires utal or food relative to the central axis of the machine in accordance with the pulley movement in these directions, so that the pulley determines the barking head. surface, regardless of the diameter of the log being processed. The links 25, 26 form knuckle joints, directed obliquely outwards at each worn hall from the spindle 17. The spring 31 strives to wound the links, whereby it simultaneously presses the pulley 35 against the log. At the same time, the spring and the link system have the function that the spring prevents the barking head from being swung outwards by the centrifugal force. the stock.

Stockens frammatning genom maskinen kan saledes ske medelst trissorna, men stocken kan i stallet eller samtidigt frammatas medelst ett utanfi5r barkningsapparaturen anordnat sarskilt matarverk av lamplig i och for sig kand konstruktion. The log can thus be fed through the machine by means of the pulleys, but the log can be fed in the stable or at the same time by means of a special feeder of suitable design per se arranged outside the barking apparatus.

Barkningsorganen aro som namnt utbildade som slagor eller frasorgan. Under barkningshuvudets rotation svanga slagorna 19 utat av centrifugalkraften och traffa sedan barken pa ett eftergivande salt. Denna rotationsrorelse visas med linjen 36 i fig. 2. Forst traffas barken av den konvexa slagytan 21, fig. 2, varvid barken slas los. Vid barkhuvudets fortsatta svangning kommer den kamartade kanten 22 till anliggning mot barken och river bort den redan av slagen uppluckrade barken. De med nabbar forsedda trissorna 35 utova en viss forberedande uppluckring av barken, atminstone pa vissa delar av stocken. The barking organs are, as the name implies, trained as beats or phrase organs. During the rotation of the barking head, the blows 19 swing outwards by the centrifugal force and then hit the bark on a resilient salt. This rotational movement is shown by the line 36 in Fig. 2. First, the bark is hit by the convex striking surface 21, Fig. 2, whereby the bark is loosened. As the bark head continues to swing, the cam-like edge 22 comes into abutment against the bark and tears off the bark already loosened by the blows. The pinned pulleys 35 exert a certain preparatory loosening of the bark, at least on certain parts of the log.

Vid barkningen kan man erhalla mycket sma avslagna barkstycken, vilka uppfangas av sugstrOmmen till flakten 14 och sedan borttransporteras fran maskinen genom blasning. During barking, very small pieces of bark can be obtained, which are captured by the suction current to the flap 14 and then transported away from the machine by blowing.

Det ar tydligt att barkningsorganen 19 kunna mom ramen for uppfinningen utforas pa vitt skilda salt. De b8ra forekomma i ett antal av atminstone tva stycken, foretradesvis fyra eller flera och deras vikt dr sO. avpassad att den avsedda barkningseffekten blir tillracklig och god, utan att veden samtidigt skadas. Kammen 22 ãr Iampligen icke skarpkantad vid slagsidan, utan eventuellt svagt rundad, men skarpan kan dock variera fOr olika bark eller barktjocklek. It is clear that the barking means 19 can be carried out on a wide variety of salts within the scope of the invention. They should occur in a number of at least two pieces, preferably four or more and their weight should be as low as. adapted so that the intended barking effect is sufficient and good, without damaging the wood at the same time. The ridge 22 is preferably not sharp-edged at the sloping side, but possibly slightly rounded, but the sharpness can vary for different bark or bark thickness.

Vid det pa ritningen visade utforingsexemplet are barkningsorganen 19 svangbart lagrade i barkningshuvudet. Det vasentliga ãr att de av centrifugalkraften forskjutas utfit fran rotationsaxeln. De kunna i stallet for att vara svangbara vara sa styrda i glidlager I barkningshuvudet, att de flyttas utat vid barkningshuvudets rotation. De kunna fortfarande ha langstrackt form med i langdriktningen krokt ytterkontur. Eventuellt kunna de alien vara paverkade av fjadrar, som fOrstarka centrifugalkraftens verkan. In the exemplary embodiment shown in the drawing, the barking members 19 are pivotally mounted in the barking head. The essential thing is that they are displaced by the centrifugal force from the axis of rotation. Instead of being pivotable, they can be so controlled in sliding bearings in the barking head that they are moved outwards during the rotation of the barking head. They can still have an elongated shape with a curved outer contour in the longitudinal direction. The aliens may be affected by springs, which amplify the effect of centrifugal force.

Claims

Patent claim:

A debarking machine, in which the logs intended for debarking are guided centrally by a debarking machine with arms pivotably mounted towards and away from the log, each of which carried a rotating fastener (18) for debarking means which, upon rotation of the fastener, strikingly affects the rake, (19) consist of rigid bodies, which are movable, suitably pivotally stored in the case in such a way that during the rotation of the fast they are kept pushed out by the centrifugal force, or forced out to the layer attacking the bark.

Barking machine according to claim 1, wherein the fastener supporting the percussion means (19) is arranged on a spindle (17) which extends in the longitudinal direction of the log and is driven over a gear wheel which is planet-likely rolled on a fixed gear ring which encloses a An opening through which the log is advanced through the debarking machinery, characterized in that the percussion means are pivotable about relatively tangentially transverse pins relative to the spindle (17).

A debarking machine according to claim 2, characterized in that the debarking means (19) in the direction perpendicular to their pivot axis are long and at it. free spirit bagformiga.

Device according to claim 3, characterized in that the barking means (19) in a cross section have an outer convex contour (21) at the side which processes the bark during the operation of the machine.

Device according to claim 4, characterized in that the convex surface (21) at the outer edge is delimited by a projecting edge (22), designed to scrape off the bark.

Barking machine according to one of Claims 2 to 5, characterized in that the spindle (17) supporting the fastener (18) is inclined towards it. the shaft of the log present in the barking layer and guided in a sleeve (23) provided with a sliding bearing for the spindle, which is supported by a bearing holder (11) for the driving gear by means of a link system (25, 26, 29), the sleeve (23) being provided with a pin forming the knee joint between two angles (25, 26) placed at an angle to each other in the lance system, one of which. for a pivotally mounted row in the bearing holder (11) or in a part (13) rigidly connected thereto, while the other is hingedly connected by a string (29), which at one end is mounted in the bearing holder (11) and at the other end, a pulley (35) is arranged, arranged to abut against the side of the log present in the rake in front of the fastening (18) for the barking means.

7. Barking machine according to patent claim 6, characterized in that the pulley (35) is rotatable in a plane which is inclined towards the feed direction of the log.

8. A debarking machine according to claim 7, characterized in that the pulley (35) is provided with extremely sharp projections or Vander, arranged to penetrate the rake.

9. A debarking machine according to any one of claims 6-8, characterized in that the sleeve (23) and the fastener (18) are provided with a strong coil spring (31), which rests against a ball bearing (32) arranged on the foot and strains for displacing the sleeve in direction away from the fast. Request publications: Patents for Sweden 24 258, 31 052, 142 009; France 908 030; Germany 292 599. Stockholm 1962. Kungl. Boktr. P. A. Norsteclt & Saner. 620089 LITOGR